diff options
224 files changed, 4001 insertions, 1898 deletions
diff --git a/compiler/rustc_ast_lowering/src/format.rs b/compiler/rustc_ast_lowering/src/format.rs index ec9d26eb33f..2871430030c 100644 --- a/compiler/rustc_ast_lowering/src/format.rs +++ b/compiler/rustc_ast_lowering/src/format.rs @@ -487,26 +487,6 @@ fn expand_format_args<'hir>( // Generate: // [] (vec![], ctx.arena.alloc(ctx.expr(macsp, hir::ExprKind::Array(&[])))) - } else if argmap.len() == 1 && arguments.len() == 1 { - // Only one argument, so we don't need to make the `args` tuple. - // - // Generate: - // super let args = [<core::fmt::Argument>::new_display(&arg)]; - let args = ctx.arena.alloc_from_iter(argmap.iter().map( - |(&(arg_index, ty), &placeholder_span)| { - let arg = &arguments[arg_index]; - let placeholder_span = - placeholder_span.unwrap_or(arg.expr.span).with_ctxt(macsp.ctxt()); - let arg = ctx.lower_expr(&arg.expr); - let ref_arg = ctx.arena.alloc(ctx.expr_ref(arg.span.with_ctxt(macsp.ctxt()), arg)); - make_argument(ctx, placeholder_span, ref_arg, ty) - }, - )); - let args = ctx.arena.alloc(ctx.expr(macsp, hir::ExprKind::Array(args))); - let args_ident = Ident::new(sym::args, macsp); - let (args_pat, args_hir_id) = ctx.pat_ident(macsp, args_ident); - let let_statement = ctx.stmt_super_let_pat(macsp, args_pat, Some(args)); - (vec![let_statement], ctx.arena.alloc(ctx.expr_ident_mut(macsp, args_ident, args_hir_id))) } else { // Generate: // super let args = (&arg0, &arg1, &…); diff --git a/compiler/rustc_attr_parsing/src/attributes/crate_level.rs b/compiler/rustc_attr_parsing/src/attributes/crate_level.rs index 0a340cd5e93..20ec0fd0c7b 100644 --- a/compiler/rustc_attr_parsing/src/attributes/crate_level.rs +++ b/compiler/rustc_attr_parsing/src/attributes/crate_level.rs @@ -1,40 +1,4 @@ -use std::num::IntErrorKind; - -use rustc_hir::limit::Limit; - use super::prelude::*; -use crate::session_diagnostics::LimitInvalid; - -impl<S: Stage> AcceptContext<'_, '_, S> { - fn parse_limit_int(&self, nv: &NameValueParser) -> Option<Limit> { - let Some(limit) = nv.value_as_str() else { - self.expected_string_literal(nv.value_span, Some(nv.value_as_lit())); - return None; - }; - - let error_str = match limit.as_str().parse() { - Ok(i) => return Some(Limit::new(i)), - Err(e) => match e.kind() { - IntErrorKind::PosOverflow => "`limit` is too large", - IntErrorKind::Empty => "`limit` must be a non-negative integer", - IntErrorKind::InvalidDigit => "not a valid integer", - IntErrorKind::NegOverflow => { - panic!( - "`limit` should never negatively overflow since we're parsing into a usize and we'd get Empty instead" - ) - } - IntErrorKind::Zero => { - panic!("zero is a valid `limit` so should have returned Ok() when parsing") - } - kind => panic!("unimplemented IntErrorKind variant: {:?}", kind), - }, - }; - - self.emit_err(LimitInvalid { span: self.attr_span, value_span: nv.value_span, error_str }); - - None - } -} pub(crate) struct CrateNameParser; diff --git a/compiler/rustc_attr_parsing/src/attributes/debugger.rs b/compiler/rustc_attr_parsing/src/attributes/debugger.rs new file mode 100644 index 00000000000..56ff10be426 --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/debugger.rs @@ -0,0 +1,60 @@ +use rustc_hir::attrs::{DebugVisualizer, DebuggerVisualizerType}; + +use super::prelude::*; + +pub(crate) struct DebuggerViualizerParser; + +impl<S: Stage> CombineAttributeParser<S> for DebuggerViualizerParser { + const PATH: &[Symbol] = &[sym::debugger_visualizer]; + const ALLOWED_TARGETS: AllowedTargets = + AllowedTargets::AllowList(&[Allow(Target::Mod), Allow(Target::Crate)]); + const TEMPLATE: AttributeTemplate = template!( + List: &[r#"natvis_file = "...", gdb_script_file = "...""#], + "https://doc.rust-lang.org/reference/attributes/debugger.html#the-debugger_visualizer-attribute" + ); + + type Item = DebugVisualizer; + const CONVERT: ConvertFn<Self::Item> = |v, _| AttributeKind::DebuggerVisualizer(v); + + fn extend<'c>( + cx: &'c mut AcceptContext<'_, '_, S>, + args: &'c ArgParser<'_>, + ) -> impl IntoIterator<Item = Self::Item> + 'c { + let Some(l) = args.list() else { + cx.expected_list(args.span().unwrap_or(cx.attr_span)); + return None; + }; + let Some(single) = l.single() else { + cx.expected_single_argument(l.span); + return None; + }; + let Some(mi) = single.meta_item() else { + cx.expected_name_value(single.span(), None); + return None; + }; + let path = mi.path().word_sym(); + let visualizer_type = match path { + Some(sym::natvis_file) => DebuggerVisualizerType::Natvis, + Some(sym::gdb_script_file) => DebuggerVisualizerType::GdbPrettyPrinter, + _ => { + cx.expected_specific_argument( + mi.path().span(), + &[sym::natvis_file, sym::gdb_script_file], + ); + return None; + } + }; + + let Some(path) = mi.args().name_value() else { + cx.expected_name_value(single.span(), path); + return None; + }; + + let Some(path) = path.value_as_str() else { + cx.expected_string_literal(path.value_span, Some(path.value_as_lit())); + return None; + }; + + Some(DebugVisualizer { span: mi.span(), visualizer_type, path }) + } +} diff --git a/compiler/rustc_attr_parsing/src/attributes/mod.rs b/compiler/rustc_attr_parsing/src/attributes/mod.rs index 4ed13d239b9..8dbf4c0ef32 100644 --- a/compiler/rustc_attr_parsing/src/attributes/mod.rs +++ b/compiler/rustc_attr_parsing/src/attributes/mod.rs @@ -36,6 +36,7 @@ pub(crate) mod cfg_old; pub(crate) mod codegen_attrs; pub(crate) mod confusables; pub(crate) mod crate_level; +pub(crate) mod debugger; pub(crate) mod deprecation; pub(crate) mod dummy; pub(crate) mod inline; diff --git a/compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs b/compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs index a995549fc7c..cf2f5c6c790 100644 --- a/compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs +++ b/compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs @@ -49,3 +49,21 @@ impl<S: Stage> SingleAttributeParser<S> for RustcObjectLifetimeDefaultParser { Some(AttributeKind::RustcObjectLifetimeDefault) } } + +pub(crate) struct RustcSimdMonomorphizeLaneLimitParser; + +impl<S: Stage> SingleAttributeParser<S> for RustcSimdMonomorphizeLaneLimitParser { + const PATH: &[Symbol] = &[sym::rustc_simd_monomorphize_lane_limit]; + const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepInnermost; + const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error; + const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[Allow(Target::Struct)]); + const TEMPLATE: AttributeTemplate = template!(NameValueStr: "N"); + + fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> { + let ArgParser::NameValue(nv) = args else { + cx.expected_name_value(cx.attr_span, None); + return None; + }; + Some(AttributeKind::RustcSimdMonomorphizeLaneLimit(cx.parse_limit_int(nv)?)) + } +} diff --git a/compiler/rustc_attr_parsing/src/attributes/util.rs b/compiler/rustc_attr_parsing/src/attributes/util.rs index 77e8c32e59d..62b72798e96 100644 --- a/compiler/rustc_attr_parsing/src/attributes/util.rs +++ b/compiler/rustc_attr_parsing/src/attributes/util.rs @@ -1,11 +1,15 @@ +use std::num::IntErrorKind; + use rustc_ast::LitKind; use rustc_ast::attr::AttributeExt; use rustc_feature::is_builtin_attr_name; use rustc_hir::RustcVersion; +use rustc_hir::limit::Limit; use rustc_span::{Symbol, sym}; use crate::context::{AcceptContext, Stage}; -use crate::parser::ArgParser; +use crate::parser::{ArgParser, NameValueParser}; +use crate::session_diagnostics::LimitInvalid; /// Parse a rustc version number written inside string literal in an attribute, /// like appears in `since = "1.0.0"`. Suffixes like "-dev" and "-nightly" are @@ -85,3 +89,34 @@ pub(crate) fn parse_single_integer<S: Stage>( }; Some(num.0) } + +impl<S: Stage> AcceptContext<'_, '_, S> { + pub(crate) fn parse_limit_int(&self, nv: &NameValueParser) -> Option<Limit> { + let Some(limit) = nv.value_as_str() else { + self.expected_string_literal(nv.value_span, Some(nv.value_as_lit())); + return None; + }; + + let error_str = match limit.as_str().parse() { + Ok(i) => return Some(Limit::new(i)), + Err(e) => match e.kind() { + IntErrorKind::PosOverflow => "`limit` is too large", + IntErrorKind::Empty => "`limit` must be a non-negative integer", + IntErrorKind::InvalidDigit => "not a valid integer", + IntErrorKind::NegOverflow => { + panic!( + "`limit` should never negatively overflow since we're parsing into a usize and we'd get Empty instead" + ) + } + IntErrorKind::Zero => { + panic!("zero is a valid `limit` so should have returned Ok() when parsing") + } + kind => panic!("unimplemented IntErrorKind variant: {:?}", kind), + }, + }; + + self.emit_err(LimitInvalid { span: self.attr_span, value_span: nv.value_span, error_str }); + + None + } +} diff --git a/compiler/rustc_attr_parsing/src/context.rs b/compiler/rustc_attr_parsing/src/context.rs index 4c32bb87a24..d7ccf3c7806 100644 --- a/compiler/rustc_attr_parsing/src/context.rs +++ b/compiler/rustc_attr_parsing/src/context.rs @@ -28,6 +28,7 @@ use crate::attributes::crate_level::{ CrateNameParser, MoveSizeLimitParser, NoCoreParser, NoStdParser, PatternComplexityLimitParser, RecursionLimitParser, RustcCoherenceIsCoreParser, TypeLengthLimitParser, }; +use crate::attributes::debugger::DebuggerViualizerParser; use crate::attributes::deprecation::DeprecationParser; use crate::attributes::dummy::DummyParser; use crate::attributes::inline::{InlineParser, RustcForceInlineParser}; @@ -53,7 +54,7 @@ use crate::attributes::prototype::CustomMirParser; use crate::attributes::repr::{AlignParser, AlignStaticParser, ReprParser}; use crate::attributes::rustc_internal::{ RustcLayoutScalarValidRangeEnd, RustcLayoutScalarValidRangeStart, - RustcObjectLifetimeDefaultParser, + RustcObjectLifetimeDefaultParser, RustcSimdMonomorphizeLaneLimitParser, }; use crate::attributes::semantics::MayDangleParser; use crate::attributes::stability::{ @@ -163,6 +164,7 @@ attribute_parsers!( // tidy-alphabetical-start Combine<AllowConstFnUnstableParser>, Combine<AllowInternalUnstableParser>, + Combine<DebuggerViualizerParser>, Combine<ForceTargetFeatureParser>, Combine<LinkParser>, Combine<ReprParser>, @@ -198,6 +200,7 @@ attribute_parsers!( Single<RustcLayoutScalarValidRangeEnd>, Single<RustcLayoutScalarValidRangeStart>, Single<RustcObjectLifetimeDefaultParser>, + Single<RustcSimdMonomorphizeLaneLimitParser>, Single<SanitizeParser>, Single<ShouldPanicParser>, Single<SkipDuringMethodDispatchParser>, diff --git a/compiler/rustc_builtin_macros/src/global_allocator.rs b/compiler/rustc_builtin_macros/src/global_allocator.rs index f14b1920722..96bece2a368 100644 --- a/compiler/rustc_builtin_macros/src/global_allocator.rs +++ b/compiler/rustc_builtin_macros/src/global_allocator.rs @@ -85,7 +85,7 @@ impl AllocFnFactory<'_, '_> { body, define_opaque: None, })); - let item = self.cx.item(self.span, self.attrs(), kind); + let item = self.cx.item(self.span, self.attrs(method), kind); self.cx.stmt_item(self.ty_span, item) } @@ -100,8 +100,18 @@ impl AllocFnFactory<'_, '_> { self.cx.expr_call(self.ty_span, method, args) } - fn attrs(&self) -> AttrVec { - thin_vec![self.cx.attr_word(sym::rustc_std_internal_symbol, self.span)] + fn attrs(&self, method: &AllocatorMethod) -> AttrVec { + let alloc_attr = match method.name { + sym::alloc => sym::rustc_allocator, + sym::dealloc => sym::rustc_deallocator, + sym::realloc => sym::rustc_reallocator, + sym::alloc_zeroed => sym::rustc_allocator_zeroed, + _ => unreachable!("Unknown allocator method!"), + }; + thin_vec![ + self.cx.attr_word(sym::rustc_std_internal_symbol, self.span), + self.cx.attr_word(alloc_attr, self.span) + ] } fn arg_ty(&self, input: &AllocatorMethodInput, args: &mut ThinVec<Param>) -> Box<Expr> { diff --git a/compiler/rustc_codegen_cranelift/src/common.rs b/compiler/rustc_codegen_cranelift/src/common.rs index 2fbe5c02802..81b1814605a 100644 --- a/compiler/rustc_codegen_cranelift/src/common.rs +++ b/compiler/rustc_codegen_cranelift/src/common.rs @@ -439,7 +439,10 @@ pub(crate) struct FullyMonomorphizedLayoutCx<'tcx>(pub(crate) TyCtxt<'tcx>); impl<'tcx> LayoutOfHelpers<'tcx> for FullyMonomorphizedLayoutCx<'tcx> { #[inline] fn handle_layout_err(&self, err: LayoutError<'tcx>, span: Span, ty: Ty<'tcx>) -> ! { - if let LayoutError::SizeOverflow(_) | LayoutError::ReferencesError(_) = err { + if let LayoutError::SizeOverflow(_) + | LayoutError::InvalidSimd { .. } + | LayoutError::ReferencesError(_) = err + { self.0.sess.dcx().span_fatal(span, err.to_string()) } else { self.0 @@ -458,7 +461,9 @@ impl<'tcx> FnAbiOfHelpers<'tcx> for FullyMonomorphizedLayoutCx<'tcx> { span: Span, fn_abi_request: FnAbiRequest<'tcx>, ) -> ! { - if let FnAbiError::Layout(LayoutError::SizeOverflow(_)) = err { + if let FnAbiError::Layout(LayoutError::SizeOverflow(_) | LayoutError::InvalidSimd { .. }) = + err + { self.0.sess.dcx().emit_fatal(Spanned { span, node: err }) } else { match fn_abi_request { diff --git a/compiler/rustc_codegen_cranelift/src/global_asm.rs b/compiler/rustc_codegen_cranelift/src/global_asm.rs index 203b443269f..1306c6aa517 100644 --- a/compiler/rustc_codegen_cranelift/src/global_asm.rs +++ b/compiler/rustc_codegen_cranelift/src/global_asm.rs @@ -42,7 +42,10 @@ impl<'tcx> AsmCodegenMethods<'tcx> for GlobalAsmContext<'_, 'tcx> { impl<'tcx> LayoutOfHelpers<'tcx> for GlobalAsmContext<'_, 'tcx> { #[inline] fn handle_layout_err(&self, err: LayoutError<'tcx>, span: Span, ty: Ty<'tcx>) -> ! { - if let LayoutError::SizeOverflow(_) | LayoutError::ReferencesError(_) = err { + if let LayoutError::SizeOverflow(_) + | LayoutError::InvalidSimd { .. } + | LayoutError::ReferencesError(_) = err + { self.tcx.sess.dcx().span_fatal(span, err.to_string()) } else { self.tcx diff --git a/compiler/rustc_codegen_gcc/src/context.rs b/compiler/rustc_codegen_gcc/src/context.rs index 665cf22ddba..9815fb07eaa 100644 --- a/compiler/rustc_codegen_gcc/src/context.rs +++ b/compiler/rustc_codegen_gcc/src/context.rs @@ -529,7 +529,10 @@ impl<'gcc, 'tcx> HasX86AbiOpt for CodegenCx<'gcc, 'tcx> { impl<'gcc, 'tcx> LayoutOfHelpers<'tcx> for CodegenCx<'gcc, 'tcx> { #[inline] fn handle_layout_err(&self, err: LayoutError<'tcx>, span: Span, ty: Ty<'tcx>) -> ! { - if let LayoutError::SizeOverflow(_) | LayoutError::ReferencesError(_) = err { + if let LayoutError::SizeOverflow(_) + | LayoutError::InvalidSimd { .. } + | LayoutError::ReferencesError(_) = err + { self.tcx.dcx().emit_fatal(respan(span, err.into_diagnostic())) } else { self.tcx.dcx().emit_fatal(ssa_errors::FailedToGetLayout { span, ty, err }) @@ -545,7 +548,9 @@ impl<'gcc, 'tcx> FnAbiOfHelpers<'tcx> for CodegenCx<'gcc, 'tcx> { span: Span, fn_abi_request: FnAbiRequest<'tcx>, ) -> ! { - if let FnAbiError::Layout(LayoutError::SizeOverflow(_)) = err { + if let FnAbiError::Layout(LayoutError::SizeOverflow(_) | LayoutError::InvalidSimd { .. }) = + err + { self.tcx.dcx().emit_fatal(respan(span, err)) } else { match fn_abi_request { diff --git a/compiler/rustc_codegen_llvm/src/abi.rs b/compiler/rustc_codegen_llvm/src/abi.rs index 11be7041167..861227f7c2a 100644 --- a/compiler/rustc_codegen_llvm/src/abi.rs +++ b/compiler/rustc_codegen_llvm/src/abi.rs @@ -538,7 +538,13 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { // If the declaration has an associated instance, compute extra attributes based on that. if let Some(instance) = instance { - llfn_attrs_from_instance(cx, llfn, instance); + llfn_attrs_from_instance( + cx, + cx.tcx, + llfn, + &cx.tcx.codegen_instance_attrs(instance.def), + Some(instance), + ); } } diff --git a/compiler/rustc_codegen_llvm/src/allocator.rs b/compiler/rustc_codegen_llvm/src/allocator.rs index df3e49279d9..abd63120397 100644 --- a/compiler/rustc_codegen_llvm/src/allocator.rs +++ b/compiler/rustc_codegen_llvm/src/allocator.rs @@ -5,15 +5,16 @@ use rustc_ast::expand::allocator::{ }; use rustc_codegen_ssa::traits::BaseTypeCodegenMethods as _; use rustc_middle::bug; +use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrs; use rustc_middle::ty::TyCtxt; use rustc_session::config::{DebugInfo, OomStrategy}; use rustc_symbol_mangling::mangle_internal_symbol; -use smallvec::SmallVec; +use crate::attributes::llfn_attrs_from_instance; use crate::builder::SBuilder; use crate::declare::declare_simple_fn; use crate::llvm::{self, FALSE, TRUE, Type, Value}; -use crate::{SimpleCx, attributes, debuginfo, llvm_util}; +use crate::{SimpleCx, attributes, debuginfo}; pub(crate) unsafe fn codegen( tcx: TyCtxt<'_>, @@ -149,18 +150,8 @@ fn create_wrapper_function( ty, ); - let mut attrs = SmallVec::<[_; 2]>::new(); - - let target_cpu = llvm_util::target_cpu(tcx.sess); - let target_cpu_attr = llvm::CreateAttrStringValue(cx.llcx, "target-cpu", target_cpu); - - let tune_cpu_attr = llvm_util::tune_cpu(tcx.sess) - .map(|tune_cpu| llvm::CreateAttrStringValue(cx.llcx, "tune-cpu", tune_cpu)); - - attrs.push(target_cpu_attr); - attrs.extend(tune_cpu_attr); - - attributes::apply_to_llfn(llfn, llvm::AttributePlace::Function, &attrs); + let attrs = CodegenFnAttrs::new(); + llfn_attrs_from_instance(cx, tcx, llfn, &attrs, None); let no_return = if no_return { // -> ! DIFlagNoReturn @@ -171,12 +162,6 @@ fn create_wrapper_function( None }; - if tcx.sess.must_emit_unwind_tables() { - let uwtable = - attributes::uwtable_attr(cx.llcx, tcx.sess.opts.unstable_opts.use_sync_unwind); - attributes::apply_to_llfn(llfn, llvm::AttributePlace::Function, &[uwtable]); - } - let llbb = unsafe { llvm::LLVMAppendBasicBlockInContext(cx.llcx, llfn, c"entry".as_ptr()) }; let mut bx = SBuilder::build(&cx, llbb); diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs index dcf6b945497..8070ea0b3e9 100644 --- a/compiler/rustc_codegen_llvm/src/attributes.rs +++ b/compiler/rustc_codegen_llvm/src/attributes.rs @@ -1,20 +1,21 @@ //! Set and unset common attributes on LLVM values. -use rustc_codegen_ssa::traits::*; use rustc_hir::attrs::{InlineAttr, InstructionSetAttr, OptimizeAttr}; use rustc_hir::def_id::DefId; -use rustc_middle::middle::codegen_fn_attrs::{CodegenFnAttrFlags, PatchableFunctionEntry}; +use rustc_middle::middle::codegen_fn_attrs::{ + CodegenFnAttrFlags, CodegenFnAttrs, PatchableFunctionEntry, +}; use rustc_middle::ty::{self, TyCtxt}; use rustc_session::config::{BranchProtection, FunctionReturn, OptLevel, PAuthKey, PacRet}; use rustc_symbol_mangling::mangle_internal_symbol; use rustc_target::spec::{FramePointer, SanitizerSet, StackProbeType, StackProtector}; use smallvec::SmallVec; -use crate::context::CodegenCx; +use crate::context::SimpleCx; use crate::errors::SanitizerMemtagRequiresMte; use crate::llvm::AttributePlace::Function; use crate::llvm::{self, AllocKindFlags, Attribute, AttributeKind, AttributePlace, MemoryEffects}; use crate::value::Value; -use crate::{attributes, llvm_util}; +use crate::{Session, attributes, llvm_util}; pub(crate) fn apply_to_llfn(llfn: &Value, idx: AttributePlace, attrs: &[&Attribute]) { if !attrs.is_empty() { @@ -30,18 +31,19 @@ pub(crate) fn apply_to_callsite(callsite: &Value, idx: AttributePlace, attrs: &[ /// Get LLVM attribute for the provided inline heuristic. pub(crate) fn inline_attr<'ll, 'tcx>( - cx: &CodegenCx<'ll, 'tcx>, + cx: &SimpleCx<'ll>, + tcx: TyCtxt<'tcx>, instance: ty::Instance<'tcx>, ) -> Option<&'ll Attribute> { // `optnone` requires `noinline` - let codegen_fn_attrs = cx.tcx.codegen_fn_attrs(instance.def_id()); + let codegen_fn_attrs = tcx.codegen_fn_attrs(instance.def_id()); let inline = match (codegen_fn_attrs.inline, &codegen_fn_attrs.optimize) { (_, OptimizeAttr::DoNotOptimize) => InlineAttr::Never, - (InlineAttr::None, _) if instance.def.requires_inline(cx.tcx) => InlineAttr::Hint, + (InlineAttr::None, _) if instance.def.requires_inline(tcx) => InlineAttr::Hint, (inline, _) => inline, }; - if !cx.tcx.sess.opts.unstable_opts.inline_llvm { + if !tcx.sess.opts.unstable_opts.inline_llvm { // disable LLVM inlining return Some(AttributeKind::NoInline.create_attr(cx.llcx)); } @@ -51,7 +53,7 @@ pub(crate) fn inline_attr<'ll, 'tcx>( Some(AttributeKind::AlwaysInline.create_attr(cx.llcx)) } InlineAttr::Never => { - if cx.sess().target.arch != "amdgpu" { + if tcx.sess.target.arch != "amdgpu" { Some(AttributeKind::NoInline.create_attr(cx.llcx)) } else { None @@ -63,12 +65,13 @@ pub(crate) fn inline_attr<'ll, 'tcx>( #[inline] fn patchable_function_entry_attrs<'ll>( - cx: &CodegenCx<'ll, '_>, + cx: &SimpleCx<'ll>, + sess: &Session, attr: Option<PatchableFunctionEntry>, ) -> SmallVec<[&'ll Attribute; 2]> { let mut attrs = SmallVec::new(); let patchable_spec = attr.unwrap_or_else(|| { - PatchableFunctionEntry::from_config(cx.tcx.sess.opts.unstable_opts.patchable_function_entry) + PatchableFunctionEntry::from_config(sess.opts.unstable_opts.patchable_function_entry) }); let entry = patchable_spec.entry(); let prefix = patchable_spec.prefix(); @@ -91,12 +94,13 @@ fn patchable_function_entry_attrs<'ll>( /// Get LLVM sanitize attributes. #[inline] -pub(crate) fn sanitize_attrs<'ll>( - cx: &CodegenCx<'ll, '_>, +pub(crate) fn sanitize_attrs<'ll, 'tcx>( + cx: &SimpleCx<'ll>, + tcx: TyCtxt<'tcx>, no_sanitize: SanitizerSet, ) -> SmallVec<[&'ll Attribute; 4]> { let mut attrs = SmallVec::new(); - let enabled = cx.tcx.sess.opts.unstable_opts.sanitizer - no_sanitize; + let enabled = tcx.sess.opts.unstable_opts.sanitizer - no_sanitize; if enabled.contains(SanitizerSet::ADDRESS) || enabled.contains(SanitizerSet::KERNELADDRESS) { attrs.push(llvm::AttributeKind::SanitizeAddress.create_attr(cx.llcx)); } @@ -114,11 +118,11 @@ pub(crate) fn sanitize_attrs<'ll>( } if enabled.contains(SanitizerSet::MEMTAG) { // Check to make sure the mte target feature is actually enabled. - let features = cx.tcx.global_backend_features(()); + let features = tcx.global_backend_features(()); let mte_feature = features.iter().map(|s| &s[..]).rfind(|n| ["+mte", "-mte"].contains(&&n[..])); if let None | Some("-mte") = mte_feature { - cx.tcx.dcx().emit_err(SanitizerMemtagRequiresMte); + tcx.dcx().emit_err(SanitizerMemtagRequiresMte); } attrs.push(llvm::AttributeKind::SanitizeMemTag.create_attr(cx.llcx)); @@ -139,9 +143,12 @@ pub(crate) fn uwtable_attr(llcx: &llvm::Context, use_sync_unwind: Option<bool>) llvm::CreateUWTableAttr(llcx, async_unwind) } -pub(crate) fn frame_pointer_type_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> { - let mut fp = cx.sess().target.frame_pointer; - let opts = &cx.sess().opts; +pub(crate) fn frame_pointer_type_attr<'ll>( + cx: &SimpleCx<'ll>, + sess: &Session, +) -> Option<&'ll Attribute> { + let mut fp = sess.target.frame_pointer; + let opts = &sess.opts; // "mcount" function relies on stack pointer. // See <https://sourceware.org/binutils/docs/gprof/Implementation.html>. if opts.unstable_opts.instrument_mcount { @@ -156,8 +163,8 @@ pub(crate) fn frame_pointer_type_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&' Some(llvm::CreateAttrStringValue(cx.llcx, "frame-pointer", attr_value)) } -fn function_return_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> { - let function_return_attr = match cx.sess().opts.unstable_opts.function_return { +fn function_return_attr<'ll>(cx: &SimpleCx<'ll>, sess: &Session) -> Option<&'ll Attribute> { + let function_return_attr = match sess.opts.unstable_opts.function_return { FunctionReturn::Keep => return None, FunctionReturn::ThunkExtern => AttributeKind::FnRetThunkExtern, }; @@ -167,17 +174,20 @@ fn function_return_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> /// Tell LLVM what instrument function to insert. #[inline] -fn instrument_function_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> SmallVec<[&'ll Attribute; 4]> { +fn instrument_function_attr<'ll>( + cx: &SimpleCx<'ll>, + sess: &Session, +) -> SmallVec<[&'ll Attribute; 4]> { let mut attrs = SmallVec::new(); - if cx.sess().opts.unstable_opts.instrument_mcount { + if sess.opts.unstable_opts.instrument_mcount { // Similar to `clang -pg` behavior. Handled by the // `post-inline-ee-instrument` LLVM pass. // The function name varies on platforms. // See test/CodeGen/mcount.c in clang. - let mcount_name = match &cx.sess().target.llvm_mcount_intrinsic { + let mcount_name = match &sess.target.llvm_mcount_intrinsic { Some(llvm_mcount_intrinsic) => llvm_mcount_intrinsic.as_ref(), - None => cx.sess().target.mcount.as_ref(), + None => sess.target.mcount.as_ref(), }; attrs.push(llvm::CreateAttrStringValue( @@ -186,7 +196,7 @@ fn instrument_function_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> SmallVec<[&'ll Attr mcount_name, )); } - if let Some(options) = &cx.sess().opts.unstable_opts.instrument_xray { + if let Some(options) = &sess.opts.unstable_opts.instrument_xray { // XRay instrumentation is similar to __cyg_profile_func_{enter,exit}. // Function prologue and epilogue are instrumented with NOP sleds, // a runtime library later replaces them with detours into tracing code. @@ -217,20 +227,20 @@ fn instrument_function_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> SmallVec<[&'ll Attr attrs } -fn nojumptables_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> { - if !cx.sess().opts.unstable_opts.no_jump_tables { +fn nojumptables_attr<'ll>(cx: &SimpleCx<'ll>, sess: &Session) -> Option<&'ll Attribute> { + if !sess.opts.unstable_opts.no_jump_tables { return None; } Some(llvm::CreateAttrStringValue(cx.llcx, "no-jump-tables", "true")) } -fn probestack_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> { +fn probestack_attr<'ll, 'tcx>(cx: &SimpleCx<'ll>, tcx: TyCtxt<'tcx>) -> Option<&'ll Attribute> { // Currently stack probes seem somewhat incompatible with the address // sanitizer and thread sanitizer. With asan we're already protected from // stack overflow anyway so we don't really need stack probes regardless. - if cx - .sess() + if tcx + .sess .opts .unstable_opts .sanitizer @@ -240,22 +250,22 @@ fn probestack_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> { } // probestack doesn't play nice either with `-C profile-generate`. - if cx.sess().opts.cg.profile_generate.enabled() { + if tcx.sess.opts.cg.profile_generate.enabled() { return None; } - let attr_value = match cx.sess().target.stack_probes { + let attr_value = match tcx.sess.target.stack_probes { StackProbeType::None => return None, // Request LLVM to generate the probes inline. If the given LLVM version does not support // this, no probe is generated at all (even if the attribute is specified). StackProbeType::Inline => "inline-asm", // Flag our internal `__rust_probestack` function as the stack probe symbol. // This is defined in the `compiler-builtins` crate for each architecture. - StackProbeType::Call => &mangle_internal_symbol(cx.tcx, "__rust_probestack"), + StackProbeType::Call => &mangle_internal_symbol(tcx, "__rust_probestack"), // Pick from the two above based on the LLVM version. StackProbeType::InlineOrCall { min_llvm_version_for_inline } => { if llvm_util::get_version() < min_llvm_version_for_inline { - &mangle_internal_symbol(cx.tcx, "__rust_probestack") + &mangle_internal_symbol(tcx, "__rust_probestack") } else { "inline-asm" } @@ -264,8 +274,8 @@ fn probestack_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> { Some(llvm::CreateAttrStringValue(cx.llcx, "probe-stack", attr_value)) } -fn stackprotector_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> { - let sspattr = match cx.sess().stack_protector() { +fn stackprotector_attr<'ll>(cx: &SimpleCx<'ll>, sess: &Session) -> Option<&'ll Attribute> { + let sspattr = match sess.stack_protector() { StackProtector::None => return None, StackProtector::All => AttributeKind::StackProtectReq, StackProtector::Strong => AttributeKind::StackProtectStrong, @@ -275,33 +285,34 @@ fn stackprotector_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> { Some(sspattr.create_attr(cx.llcx)) } -fn backchain_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> { - if cx.sess().target.arch != "s390x" { +fn backchain_attr<'ll>(cx: &SimpleCx<'ll>, sess: &Session) -> Option<&'ll Attribute> { + if sess.target.arch != "s390x" { return None; } - let requested_features = cx.sess().opts.cg.target_feature.split(','); + let requested_features = sess.opts.cg.target_feature.split(','); let found_positive = requested_features.clone().any(|r| r == "+backchain"); if found_positive { Some(llvm::CreateAttrString(cx.llcx, "backchain")) } else { None } } -pub(crate) fn target_cpu_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> &'ll Attribute { - let target_cpu = llvm_util::target_cpu(cx.tcx.sess); +pub(crate) fn target_cpu_attr<'ll>(cx: &SimpleCx<'ll>, sess: &Session) -> &'ll Attribute { + let target_cpu = llvm_util::target_cpu(sess); llvm::CreateAttrStringValue(cx.llcx, "target-cpu", target_cpu) } -pub(crate) fn tune_cpu_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> { - llvm_util::tune_cpu(cx.tcx.sess) +pub(crate) fn tune_cpu_attr<'ll>(cx: &SimpleCx<'ll>, sess: &Session) -> Option<&'ll Attribute> { + llvm_util::tune_cpu(sess) .map(|tune_cpu| llvm::CreateAttrStringValue(cx.llcx, "tune-cpu", tune_cpu)) } /// Get the `target-features` LLVM attribute. -pub(crate) fn target_features_attr<'ll>( - cx: &CodegenCx<'ll, '_>, +pub(crate) fn target_features_attr<'ll, 'tcx>( + cx: &SimpleCx<'ll>, + tcx: TyCtxt<'tcx>, function_features: Vec<String>, ) -> Option<&'ll Attribute> { - let global_features = cx.tcx.global_backend_features(()).iter().map(String::as_str); + let global_features = tcx.global_backend_features(()).iter().map(String::as_str); let function_features = function_features.iter().map(String::as_str); let target_features = global_features.chain(function_features).intersperse(",").collect::<String>(); @@ -311,22 +322,22 @@ pub(crate) fn target_features_attr<'ll>( /// Get the `NonLazyBind` LLVM attribute, /// if the codegen options allow skipping the PLT. -pub(crate) fn non_lazy_bind_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> { +pub(crate) fn non_lazy_bind_attr<'ll>( + cx: &SimpleCx<'ll>, + sess: &Session, +) -> Option<&'ll Attribute> { // Don't generate calls through PLT if it's not necessary - if !cx.sess().needs_plt() { - Some(AttributeKind::NonLazyBind.create_attr(cx.llcx)) - } else { - None - } + if !sess.needs_plt() { Some(AttributeKind::NonLazyBind.create_attr(cx.llcx)) } else { None } } /// Get the default optimizations attrs for a function. #[inline] pub(crate) fn default_optimisation_attrs<'ll>( - cx: &CodegenCx<'ll, '_>, + cx: &SimpleCx<'ll>, + sess: &Session, ) -> SmallVec<[&'ll Attribute; 2]> { let mut attrs = SmallVec::new(); - match cx.sess().opts.optimize { + match sess.opts.optimize { OptLevel::Size => { attrs.push(llvm::AttributeKind::OptimizeForSize.create_attr(cx.llcx)); } @@ -347,17 +358,18 @@ fn create_alloc_family_attr(llcx: &llvm::Context) -> &llvm::Attribute { /// Composite function which sets LLVM attributes for function depending on its AST (`#[attribute]`) /// attributes. pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( - cx: &CodegenCx<'ll, 'tcx>, + cx: &SimpleCx<'ll>, + tcx: TyCtxt<'tcx>, llfn: &'ll Value, - instance: ty::Instance<'tcx>, + codegen_fn_attrs: &CodegenFnAttrs, + instance: Option<ty::Instance<'tcx>>, ) { - let codegen_fn_attrs = cx.tcx.codegen_instance_attrs(instance.def); - + let sess = tcx.sess; let mut to_add = SmallVec::<[_; 16]>::new(); match codegen_fn_attrs.optimize { OptimizeAttr::Default => { - to_add.extend(default_optimisation_attrs(cx)); + to_add.extend(default_optimisation_attrs(cx, sess)); } OptimizeAttr::DoNotOptimize => { to_add.push(llvm::AttributeKind::OptimizeNone.create_attr(cx.llcx)); @@ -369,21 +381,21 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( OptimizeAttr::Speed => {} } - if cx.sess().must_emit_unwind_tables() { - to_add.push(uwtable_attr(cx.llcx, cx.sess().opts.unstable_opts.use_sync_unwind)); + if sess.must_emit_unwind_tables() { + to_add.push(uwtable_attr(cx.llcx, sess.opts.unstable_opts.use_sync_unwind)); } - if cx.sess().opts.unstable_opts.profile_sample_use.is_some() { + if sess.opts.unstable_opts.profile_sample_use.is_some() { to_add.push(llvm::CreateAttrString(cx.llcx, "use-sample-profile")); } // FIXME: none of these functions interact with source level attributes. - to_add.extend(frame_pointer_type_attr(cx)); - to_add.extend(function_return_attr(cx)); - to_add.extend(instrument_function_attr(cx)); - to_add.extend(nojumptables_attr(cx)); - to_add.extend(probestack_attr(cx)); - to_add.extend(stackprotector_attr(cx)); + to_add.extend(frame_pointer_type_attr(cx, sess)); + to_add.extend(function_return_attr(cx, sess)); + to_add.extend(instrument_function_attr(cx, sess)); + to_add.extend(nojumptables_attr(cx, sess)); + to_add.extend(probestack_attr(cx, tcx)); + to_add.extend(stackprotector_attr(cx, sess)); if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NO_BUILTINS) { to_add.push(llvm::CreateAttrString(cx.llcx, "no-builtins")); @@ -404,13 +416,13 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( // not used. } else { // Do not set sanitizer attributes for naked functions. - to_add.extend(sanitize_attrs(cx, codegen_fn_attrs.no_sanitize)); + to_add.extend(sanitize_attrs(cx, tcx, codegen_fn_attrs.no_sanitize)); // For non-naked functions, set branch protection attributes on aarch64. if let Some(BranchProtection { bti, pac_ret, gcs }) = - cx.sess().opts.unstable_opts.branch_protection + sess.opts.unstable_opts.branch_protection { - assert!(cx.sess().target.arch == "aarch64"); + assert!(sess.target.arch == "aarch64"); if bti { to_add.push(llvm::CreateAttrString(cx.llcx, "branch-target-enforcement")); } @@ -438,14 +450,15 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( || codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::ALLOCATOR_ZEROED) { to_add.push(create_alloc_family_attr(cx.llcx)); - if let Some(zv) = - cx.tcx.get_attr(instance.def_id(), rustc_span::sym::rustc_allocator_zeroed_variant) + if let Some(instance) = instance + && let Some(zv) = + tcx.get_attr(instance.def_id(), rustc_span::sym::rustc_allocator_zeroed_variant) && let Some(name) = zv.value_str() { to_add.push(llvm::CreateAttrStringValue( cx.llcx, "alloc-variant-zeroed", - &mangle_internal_symbol(cx.tcx, name.as_str()), + &mangle_internal_symbol(tcx, name.as_str()), )); } // apply to argument place instead of function @@ -490,18 +503,22 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( if let Some(align) = codegen_fn_attrs.alignment { llvm::set_alignment(llfn, align); } - if let Some(backchain) = backchain_attr(cx) { + if let Some(backchain) = backchain_attr(cx, sess) { to_add.push(backchain); } - to_add.extend(patchable_function_entry_attrs(cx, codegen_fn_attrs.patchable_function_entry)); + to_add.extend(patchable_function_entry_attrs( + cx, + sess, + codegen_fn_attrs.patchable_function_entry, + )); // Always annotate functions with the target-cpu they are compiled for. // Without this, ThinLTO won't inline Rust functions into Clang generated // functions (because Clang annotates functions this way too). - to_add.push(target_cpu_attr(cx)); + to_add.push(target_cpu_attr(cx, sess)); // tune-cpu is only conveyed through the attribute for our purpose. // The target doesn't care; the subtarget reads our attribute. - to_add.extend(tune_cpu_attr(cx)); + to_add.extend(tune_cpu_attr(cx, sess)); let function_features = codegen_fn_attrs.target_features.iter().map(|f| f.name.as_str()).collect::<Vec<&str>>(); @@ -509,7 +526,9 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( // Apply function attributes as per usual if there are no user defined // target features otherwise this will get applied at the callsite. if function_features.is_empty() { - if let Some(inline_attr) = inline_attr(cx, instance) { + if let Some(instance) = instance + && let Some(inline_attr) = inline_attr(cx, tcx, instance) + { to_add.push(inline_attr); } } @@ -517,7 +536,7 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( let function_features = function_features .iter() // Convert to LLVMFeatures and filter out unavailable ones - .flat_map(|feat| llvm_util::to_llvm_features(cx.tcx.sess, feat)) + .flat_map(|feat| llvm_util::to_llvm_features(sess, feat)) // Convert LLVMFeatures & dependencies to +<feats>s .flat_map(|feat| feat.into_iter().map(|f| format!("+{f}"))) .chain(codegen_fn_attrs.instruction_set.iter().map(|x| match x { @@ -526,20 +545,22 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( })) .collect::<Vec<String>>(); - if cx.tcx.sess.target.is_like_wasm { + if sess.target.is_like_wasm { // If this function is an import from the environment but the wasm // import has a specific module/name, apply them here. - if let Some(module) = wasm_import_module(cx.tcx, instance.def_id()) { + if let Some(instance) = instance + && let Some(module) = wasm_import_module(tcx, instance.def_id()) + { to_add.push(llvm::CreateAttrStringValue(cx.llcx, "wasm-import-module", module)); let name = - codegen_fn_attrs.symbol_name.unwrap_or_else(|| cx.tcx.item_name(instance.def_id())); + codegen_fn_attrs.symbol_name.unwrap_or_else(|| tcx.item_name(instance.def_id())); let name = name.as_str(); to_add.push(llvm::CreateAttrStringValue(cx.llcx, "wasm-import-name", name)); } } - to_add.extend(target_features_attr(cx, function_features)); + to_add.extend(target_features_attr(cx, tcx, function_features)); attributes::apply_to_llfn(llfn, Function, &to_add); } diff --git a/compiler/rustc_codegen_llvm/src/back/owned_target_machine.rs b/compiler/rustc_codegen_llvm/src/back/owned_target_machine.rs index d5228f0e0de..903a882916e 100644 --- a/compiler/rustc_codegen_llvm/src/back/owned_target_machine.rs +++ b/compiler/rustc_codegen_llvm/src/back/owned_target_machine.rs @@ -95,8 +95,6 @@ impl Drop for OwnedTargetMachine { // SAFETY: constructing ensures we have a valid pointer created by // llvm::LLVMRustCreateTargetMachine OwnedTargetMachine is not copyable so there is no // double free or use after free. - unsafe { - llvm::LLVMRustDisposeTargetMachine(self.tm_unique.as_ptr()); - } + unsafe { llvm::LLVMDisposeTargetMachine(self.tm_unique) }; } } diff --git a/compiler/rustc_codegen_llvm/src/base.rs b/compiler/rustc_codegen_llvm/src/base.rs index 978134cc32b..6d12b511e9c 100644 --- a/compiler/rustc_codegen_llvm/src/base.rs +++ b/compiler/rustc_codegen_llvm/src/base.rs @@ -105,7 +105,7 @@ pub(crate) fn compile_codegen_unit( if let Some(entry) = maybe_create_entry_wrapper::<Builder<'_, '_, '_>>(&cx, cx.codegen_unit) { - let attrs = attributes::sanitize_attrs(&cx, SanitizerSet::empty()); + let attrs = attributes::sanitize_attrs(&cx, tcx, SanitizerSet::empty()); attributes::apply_to_llfn(entry, llvm::AttributePlace::Function, &attrs); } diff --git a/compiler/rustc_codegen_llvm/src/builder.rs b/compiler/rustc_codegen_llvm/src/builder.rs index 0f17cc9063a..a4dc4eb532f 100644 --- a/compiler/rustc_codegen_llvm/src/builder.rs +++ b/compiler/rustc_codegen_llvm/src/builder.rs @@ -1433,7 +1433,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { // If there is an inline attribute and a target feature that matches // we will add the attribute to the callsite otherwise we'll omit // this and not add the attribute to prevent soundness issues. - && let Some(inlining_rule) = attributes::inline_attr(&self.cx, instance) + && let Some(inlining_rule) = attributes::inline_attr(&self.cx, self.cx.tcx, instance) && self.cx.tcx.is_target_feature_call_safe( &fn_call_attrs.target_features, &fn_defn_attrs.target_features, diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs index 057f525c76f..aa5c17269fb 100644 --- a/compiler/rustc_codegen_llvm/src/context.rs +++ b/compiler/rustc_codegen_llvm/src/context.rs @@ -876,7 +876,7 @@ impl<'ll, 'tcx> MiscCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> { } else { let fty = self.type_variadic_func(&[], self.type_i32()); let llfn = self.declare_cfn(name, llvm::UnnamedAddr::Global, fty); - let target_cpu = attributes::target_cpu_attr(self); + let target_cpu = attributes::target_cpu_attr(self, self.sess()); attributes::apply_to_llfn(llfn, llvm::AttributePlace::Function, &[target_cpu]); llfn } @@ -891,15 +891,15 @@ impl<'ll, 'tcx> MiscCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> { } fn set_frame_pointer_type(&self, llfn: &'ll Value) { - if let Some(attr) = attributes::frame_pointer_type_attr(self) { + if let Some(attr) = attributes::frame_pointer_type_attr(self, self.sess()) { attributes::apply_to_llfn(llfn, llvm::AttributePlace::Function, &[attr]); } } fn apply_target_cpu_attr(&self, llfn: &'ll Value) { let mut attrs = SmallVec::<[_; 2]>::new(); - attrs.push(attributes::target_cpu_attr(self)); - attrs.extend(attributes::tune_cpu_attr(self)); + attrs.push(attributes::target_cpu_attr(self, self.sess())); + attrs.extend(attributes::tune_cpu_attr(self, self.sess())); attributes::apply_to_llfn(llfn, llvm::AttributePlace::Function, &attrs); } @@ -918,7 +918,7 @@ impl<'ll, 'tcx> MiscCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> { attributes::apply_to_llfn( llfn, llvm::AttributePlace::Function, - attributes::target_features_attr(self, vec![]).as_slice(), + attributes::target_features_attr(self, self.tcx, vec![]).as_slice(), ); Some(llfn) } else { @@ -1044,7 +1044,10 @@ impl<'tcx, 'll> HasTypingEnv<'tcx> for CodegenCx<'ll, 'tcx> { impl<'tcx> LayoutOfHelpers<'tcx> for CodegenCx<'_, 'tcx> { #[inline] fn handle_layout_err(&self, err: LayoutError<'tcx>, span: Span, ty: Ty<'tcx>) -> ! { - if let LayoutError::SizeOverflow(_) | LayoutError::ReferencesError(_) = err { + if let LayoutError::SizeOverflow(_) + | LayoutError::ReferencesError(_) + | LayoutError::InvalidSimd { .. } = err + { self.tcx.dcx().emit_fatal(Spanned { span, node: err.into_diagnostic() }) } else { self.tcx.dcx().emit_fatal(ssa_errors::FailedToGetLayout { span, ty, err }) @@ -1061,7 +1064,11 @@ impl<'tcx> FnAbiOfHelpers<'tcx> for CodegenCx<'_, 'tcx> { fn_abi_request: FnAbiRequest<'tcx>, ) -> ! { match err { - FnAbiError::Layout(LayoutError::SizeOverflow(_) | LayoutError::Cycle(_)) => { + FnAbiError::Layout( + LayoutError::SizeOverflow(_) + | LayoutError::Cycle(_) + | LayoutError::InvalidSimd { .. }, + ) => { self.tcx.dcx().emit_fatal(Spanned { span, node: err }); } _ => match fn_abi_request { diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs b/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs index 7a6dc008c7b..3081badb821 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs @@ -2,9 +2,9 @@ use rustc_codegen_ssa::base::collect_debugger_visualizers_transitive; use rustc_codegen_ssa::traits::*; +use rustc_hir::attrs::DebuggerVisualizerType; use rustc_hir::def_id::LOCAL_CRATE; use rustc_middle::bug; -use rustc_middle::middle::debugger_visualizer::DebuggerVisualizerType; use rustc_session::config::{CrateType, DebugInfo}; use crate::builder::Builder; diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs index aa8b8bd152d..4ba72cd61a0 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs @@ -477,8 +477,8 @@ pub(crate) fn spanned_type_di_node<'ll, 'tcx>( ty::CoroutineClosure(..) => build_closure_env_di_node(cx, unique_type_id), ty::Coroutine(..) => enums::build_coroutine_di_node(cx, unique_type_id), ty::Adt(def, ..) => match def.adt_kind() { - AdtKind::Struct => build_struct_type_di_node(cx, unique_type_id), - AdtKind::Union => build_union_type_di_node(cx, unique_type_id), + AdtKind::Struct => build_struct_type_di_node(cx, unique_type_id, span), + AdtKind::Union => build_union_type_di_node(cx, unique_type_id, span), AdtKind::Enum => enums::build_enum_type_di_node(cx, unique_type_id, span), }, ty::Tuple(_) => build_tuple_type_di_node(cx, unique_type_id), @@ -1076,6 +1076,7 @@ fn visibility_di_flags<'ll, 'tcx>( fn build_struct_type_di_node<'ll, 'tcx>( cx: &CodegenCx<'ll, 'tcx>, unique_type_id: UniqueTypeId<'tcx>, + span: Span, ) -> DINodeCreationResult<'ll> { let struct_type = unique_type_id.expect_ty(); let ty::Adt(adt_def, _) = struct_type.kind() else { @@ -1083,7 +1084,7 @@ fn build_struct_type_di_node<'ll, 'tcx>( }; assert!(adt_def.is_struct()); let containing_scope = get_namespace_for_item(cx, adt_def.did()); - let struct_type_and_layout = cx.layout_of(struct_type); + let struct_type_and_layout = cx.spanned_layout_of(struct_type, span); let variant_def = adt_def.non_enum_variant(); let def_location = if cx.sess().opts.unstable_opts.debug_info_type_line_numbers { Some(file_metadata_from_def_id(cx, Some(adt_def.did()))) @@ -1276,6 +1277,7 @@ fn build_closure_env_di_node<'ll, 'tcx>( fn build_union_type_di_node<'ll, 'tcx>( cx: &CodegenCx<'ll, 'tcx>, unique_type_id: UniqueTypeId<'tcx>, + span: Span, ) -> DINodeCreationResult<'ll> { let union_type = unique_type_id.expect_ty(); let (union_def_id, variant_def) = match union_type.kind() { @@ -1283,7 +1285,7 @@ fn build_union_type_di_node<'ll, 'tcx>( _ => bug!("build_union_type_di_node on a non-ADT"), }; let containing_scope = get_namespace_for_item(cx, union_def_id); - let union_ty_and_layout = cx.layout_of(union_type); + let union_ty_and_layout = cx.spanned_layout_of(union_type, span); let type_name = compute_debuginfo_type_name(cx.tcx, union_type, false); let def_location = if cx.sess().opts.unstable_opts.debug_info_type_line_numbers { Some(file_metadata_from_def_id(cx, Some(union_def_id))) diff --git a/compiler/rustc_codegen_llvm/src/declare.rs b/compiler/rustc_codegen_llvm/src/declare.rs index 960a895a203..36cdb498839 100644 --- a/compiler/rustc_codegen_llvm/src/declare.rs +++ b/compiler/rustc_codegen_llvm/src/declare.rs @@ -76,7 +76,7 @@ pub(crate) fn declare_raw_fn<'ll, 'tcx>( attrs.push(llvm::AttributeKind::NoRedZone.create_attr(cx.llcx)); } - attrs.extend(attributes::non_lazy_bind_attr(cx)); + attrs.extend(attributes::non_lazy_bind_attr(cx, cx.tcx.sess)); attributes::apply_to_llfn(llfn, Function, &attrs); diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index fd972f371df..38a6a311954 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -1053,6 +1053,8 @@ unsafe extern "C" { SLen: c_uint, ) -> MetadataKindId; + pub(crate) fn LLVMDisposeTargetMachine(T: ptr::NonNull<TargetMachine>); + // Create modules. pub(crate) fn LLVMModuleCreateWithNameInContext( ModuleID: *const c_char, @@ -2499,7 +2501,6 @@ unsafe extern "C" { UseWasmEH: bool, ) -> *mut TargetMachine; - pub(crate) fn LLVMRustDisposeTargetMachine(T: *mut TargetMachine); pub(crate) fn LLVMRustAddLibraryInfo<'a>( PM: &PassManager<'a>, M: &'a Module, diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs index 68a2f43ec67..422b06350e1 100644 --- a/compiler/rustc_codegen_ssa/src/base.rs +++ b/compiler/rustc_codegen_ssa/src/base.rs @@ -11,12 +11,12 @@ use rustc_data_structures::fx::{FxHashMap, FxIndexSet}; use rustc_data_structures::profiling::{get_resident_set_size, print_time_passes_entry}; use rustc_data_structures::sync::{IntoDynSyncSend, par_map}; use rustc_data_structures::unord::UnordMap; -use rustc_hir::attrs::OptimizeAttr; +use rustc_hir::attrs::{DebuggerVisualizerType, OptimizeAttr}; use rustc_hir::def_id::{DefId, LOCAL_CRATE}; use rustc_hir::lang_items::LangItem; use rustc_hir::{ItemId, Target}; use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrs; -use rustc_middle::middle::debugger_visualizer::{DebuggerVisualizerFile, DebuggerVisualizerType}; +use rustc_middle::middle::debugger_visualizer::DebuggerVisualizerFile; use rustc_middle::middle::dependency_format::Dependencies; use rustc_middle::middle::exported_symbols::{self, SymbolExportKind}; use rustc_middle::middle::lang_items; diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs index 418dd658121..785978b4d71 100644 --- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs +++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs @@ -636,6 +636,14 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { dest, rustc_apfloat::Round::NearestTiesToEven, )?, + sym::fmaf16 => self.fma_intrinsic::<Half>(args, dest)?, + sym::fmaf32 => self.fma_intrinsic::<Single>(args, dest)?, + sym::fmaf64 => self.fma_intrinsic::<Double>(args, dest)?, + sym::fmaf128 => self.fma_intrinsic::<Quad>(args, dest)?, + sym::fmuladdf16 => self.float_muladd_intrinsic::<Half>(args, dest)?, + sym::fmuladdf32 => self.float_muladd_intrinsic::<Single>(args, dest)?, + sym::fmuladdf64 => self.float_muladd_intrinsic::<Double>(args, dest)?, + sym::fmuladdf128 => self.float_muladd_intrinsic::<Quad>(args, dest)?, // Unsupported intrinsic: skip the return_to_block below. _ => return interp_ok(false), @@ -1035,4 +1043,42 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { self.write_scalar(res, dest)?; interp_ok(()) } + + fn fma_intrinsic<F>( + &mut self, + args: &[OpTy<'tcx, M::Provenance>], + dest: &PlaceTy<'tcx, M::Provenance>, + ) -> InterpResult<'tcx, ()> + where + F: rustc_apfloat::Float + rustc_apfloat::FloatConvert<F> + Into<Scalar<M::Provenance>>, + { + let a: F = self.read_scalar(&args[0])?.to_float()?; + let b: F = self.read_scalar(&args[1])?.to_float()?; + let c: F = self.read_scalar(&args[2])?.to_float()?; + + let res = a.mul_add(b, c).value; + let res = self.adjust_nan(res, &[a, b, c]); + self.write_scalar(res, dest)?; + interp_ok(()) + } + + fn float_muladd_intrinsic<F>( + &mut self, + args: &[OpTy<'tcx, M::Provenance>], + dest: &PlaceTy<'tcx, M::Provenance>, + ) -> InterpResult<'tcx, ()> + where + F: rustc_apfloat::Float + rustc_apfloat::FloatConvert<F> + Into<Scalar<M::Provenance>>, + { + let a: F = self.read_scalar(&args[0])?.to_float()?; + let b: F = self.read_scalar(&args[1])?.to_float()?; + let c: F = self.read_scalar(&args[2])?.to_float()?; + + let fuse = M::float_fuse_mul_add(self); + + let res = if fuse { a.mul_add(b, c).value } else { ((a * b).value + c).value }; + let res = self.adjust_nan(res, &[a, b, c]); + self.write_scalar(res, dest)?; + interp_ok(()) + } } diff --git a/compiler/rustc_const_eval/src/interpret/machine.rs b/compiler/rustc_const_eval/src/interpret/machine.rs index e22629993fb..1725635e0b4 100644 --- a/compiler/rustc_const_eval/src/interpret/machine.rs +++ b/compiler/rustc_const_eval/src/interpret/machine.rs @@ -289,6 +289,9 @@ pub trait Machine<'tcx>: Sized { a } + /// Determines whether the `fmuladd` intrinsics fuse the multiply-add or use separate operations. + fn float_fuse_mul_add(_ecx: &mut InterpCx<'tcx, Self>) -> bool; + /// Called before a basic block terminator is executed. #[inline] fn before_terminator(_ecx: &mut InterpCx<'tcx, Self>) -> InterpResult<'tcx> { @@ -673,6 +676,11 @@ pub macro compile_time_machine(<$tcx: lifetime>) { } #[inline(always)] + fn float_fuse_mul_add(_ecx: &mut InterpCx<$tcx, Self>) -> bool { + true + } + + #[inline(always)] fn ub_checks(_ecx: &InterpCx<$tcx, Self>) -> InterpResult<$tcx, bool> { // We can't look at `tcx.sess` here as that can differ across crates, which can lead to // unsound differences in evaluating the same constant at different instantiation sites. diff --git a/compiler/rustc_const_eval/src/util/caller_location.rs b/compiler/rustc_const_eval/src/util/caller_location.rs index 5249b32eca4..4e7c8310007 100644 --- a/compiler/rustc_const_eval/src/util/caller_location.rs +++ b/compiler/rustc_const_eval/src/util/caller_location.rs @@ -61,7 +61,7 @@ pub(crate) fn const_caller_location_provider( trace!("const_caller_location: {}:{}:{}", file, line, col); let mut ecx = mk_eval_cx_to_read_const_val( tcx, - rustc_span::DUMMY_SP, // FIXME: use a proper span here? + rustc_span::DUMMY_SP, // This interpreter cannot fail, so the span is irrelevant. ty::TypingEnv::fully_monomorphized(), CanAccessMutGlobal::No, ); diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs index 3956125bace..33b712e3aed 100644 --- a/compiler/rustc_expand/src/base.rs +++ b/compiler/rustc_expand/src/base.rs @@ -324,16 +324,16 @@ pub trait BangProcMacro { impl<F> BangProcMacro for F where - F: Fn(TokenStream) -> TokenStream, + F: Fn(&mut ExtCtxt<'_>, Span, TokenStream) -> Result<TokenStream, ErrorGuaranteed>, { fn expand<'cx>( &self, - _ecx: &'cx mut ExtCtxt<'_>, - _span: Span, + ecx: &'cx mut ExtCtxt<'_>, + span: Span, ts: TokenStream, ) -> Result<TokenStream, ErrorGuaranteed> { // FIXME setup implicit context in TLS before calling self. - Ok(self(ts)) + self(ecx, span, ts) } } @@ -999,17 +999,14 @@ impl SyntaxExtension { /// A dummy bang macro `foo!()`. pub fn dummy_bang(edition: Edition) -> SyntaxExtension { - fn expander<'cx>( - cx: &'cx mut ExtCtxt<'_>, + fn expand( + ecx: &mut ExtCtxt<'_>, span: Span, - _: TokenStream, - ) -> MacroExpanderResult<'cx> { - ExpandResult::Ready(DummyResult::any( - span, - cx.dcx().span_delayed_bug(span, "expanded a dummy bang macro"), - )) + _ts: TokenStream, + ) -> Result<TokenStream, ErrorGuaranteed> { + Err(ecx.dcx().span_delayed_bug(span, "expanded a dummy bang macro")) } - SyntaxExtension::default(SyntaxExtensionKind::LegacyBang(Arc::new(expander)), edition) + SyntaxExtension::default(SyntaxExtensionKind::Bang(Arc::new(expand)), edition) } /// A dummy derive macro `#[derive(Foo)]`. diff --git a/compiler/rustc_expand/src/expand.rs b/compiler/rustc_expand/src/expand.rs index 4c0e0bbfe26..172bc3d1d9f 100644 --- a/compiler/rustc_expand/src/expand.rs +++ b/compiler/rustc_expand/src/expand.rs @@ -971,7 +971,7 @@ impl<'a, 'b> MacroExpander<'a, 'b> { }); } }, - SyntaxExtensionKind::LegacyBang(..) => { + SyntaxExtensionKind::Bang(..) => { let msg = "expanded a dummy glob delegation"; let guar = self.cx.dcx().span_delayed_bug(span, msg); return ExpandResult::Ready(fragment_kind.dummy(span, guar)); diff --git a/compiler/rustc_expand/src/mbe/macro_rules.rs b/compiler/rustc_expand/src/mbe/macro_rules.rs index 74b7de7e12b..d4504ba720e 100644 --- a/compiler/rustc_expand/src/mbe/macro_rules.rs +++ b/compiler/rustc_expand/src/mbe/macro_rules.rs @@ -33,8 +33,8 @@ use super::diagnostics::{FailedMacro, failed_to_match_macro}; use super::macro_parser::{NamedMatches, NamedParseResult}; use super::{SequenceRepetition, diagnostics}; use crate::base::{ - AttrProcMacro, DummyResult, ExpandResult, ExtCtxt, MacResult, MacroExpanderResult, - SyntaxExtension, SyntaxExtensionKind, TTMacroExpander, + AttrProcMacro, BangProcMacro, DummyResult, ExpandResult, ExtCtxt, MacResult, + MacroExpanderResult, SyntaxExtension, SyntaxExtensionKind, TTMacroExpander, }; use crate::errors; use crate::expand::{AstFragment, AstFragmentKind, ensure_complete_parse, parse_ast_fragment}; @@ -267,16 +267,16 @@ impl AttrProcMacro for MacroRulesMacroExpander { } } -struct DummyExpander(ErrorGuaranteed); +struct DummyBang(ErrorGuaranteed); -impl TTMacroExpander for DummyExpander { +impl BangProcMacro for DummyBang { fn expand<'cx>( &self, _: &'cx mut ExtCtxt<'_>, - span: Span, + _: Span, _: TokenStream, - ) -> ExpandResult<Box<dyn MacResult + 'cx>, ()> { - ExpandResult::Ready(DummyResult::any(span, self.0)) + ) -> Result<TokenStream, ErrorGuaranteed> { + Err(self.0) } } @@ -664,7 +664,7 @@ pub fn compile_declarative_macro( SyntaxExtension::new(sess, kind, span, Vec::new(), edition, ident.name, attrs, is_local) }; let dummy_syn_ext = - |guar| (mk_syn_ext(SyntaxExtensionKind::LegacyBang(Arc::new(DummyExpander(guar)))), 0); + |guar| (mk_syn_ext(SyntaxExtensionKind::Bang(Arc::new(DummyBang(guar)))), 0); let macro_rules = macro_def.macro_rules; let exp_sep = if macro_rules { exp!(Semi) } else { exp!(Comma) }; diff --git a/compiler/rustc_feature/src/builtin_attrs.rs b/compiler/rustc_feature/src/builtin_attrs.rs index 99d6e93faa9..220388ffe43 100644 --- a/compiler/rustc_feature/src/builtin_attrs.rs +++ b/compiler/rustc_feature/src/builtin_attrs.rs @@ -1212,6 +1212,12 @@ pub static BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[ niche optimizations in the standard library", ), rustc_attr!( + rustc_simd_monomorphize_lane_limit, Normal, template!(NameValueStr: "N"), ErrorFollowing, + EncodeCrossCrate::Yes, + "the `#[rustc_simd_monomorphize_lane_limit]` attribute is just used by std::simd \ + for better error messages", + ), + rustc_attr!( rustc_nonnull_optimization_guaranteed, Normal, template!(Word), WarnFollowing, EncodeCrossCrate::Yes, "the `#[rustc_nonnull_optimization_guaranteed]` attribute is just used to document \ diff --git a/compiler/rustc_hir/src/attrs/data_structures.rs b/compiler/rustc_hir/src/attrs/data_structures.rs index 8ab43ff2582..ddcbaeaad88 100644 --- a/compiler/rustc_hir/src/attrs/data_structures.rs +++ b/compiler/rustc_hir/src/attrs/data_structures.rs @@ -363,6 +363,20 @@ pub struct LinkEntry { pub import_name_type: Option<(PeImportNameType, Span)>, } +#[derive(HashStable_Generic, PrintAttribute)] +#[derive(Copy, PartialEq, PartialOrd, Clone, Ord, Eq, Hash, Debug, Encodable, Decodable)] +pub enum DebuggerVisualizerType { + Natvis, + GdbPrettyPrinter, +} + +#[derive(Debug, Encodable, Decodable, Clone, HashStable_Generic, PrintAttribute)] +pub struct DebugVisualizer { + pub span: Span, + pub visualizer_type: DebuggerVisualizerType, + pub path: Symbol, +} + /// Represents parsed *built-in* inert attributes. /// /// ## Overview @@ -485,7 +499,10 @@ pub enum AttributeKind { /// Represents `#[custom_mir]`. CustomMir(Option<(MirDialect, Span)>, Option<(MirPhase, Span)>, Span), - ///Represents `#[rustc_deny_explicit_impl]`. + /// Represents `#[debugger_visualizer]`. + DebuggerVisualizer(ThinVec<DebugVisualizer>), + + /// Represents `#[rustc_deny_explicit_impl]`. DenyExplicitImpl(Span), /// Represents [`#[deprecated]`](https://doc.rust-lang.org/stable/reference/attributes/diagnostics.html#the-deprecated-attribute). @@ -651,6 +668,9 @@ pub enum AttributeKind { /// Represents `#[rustc_object_lifetime_default]`. RustcObjectLifetimeDefault, + /// Represents `#[rustc_simd_monomorphize_lane_limit = "N"]`. + RustcSimdMonomorphizeLaneLimit(Limit), + /// Represents `#[sanitize]` /// /// the on set and off set are distjoint since there's a third option: unset. diff --git a/compiler/rustc_hir/src/attrs/encode_cross_crate.rs b/compiler/rustc_hir/src/attrs/encode_cross_crate.rs index 8e443405074..1611b865c77 100644 --- a/compiler/rustc_hir/src/attrs/encode_cross_crate.rs +++ b/compiler/rustc_hir/src/attrs/encode_cross_crate.rs @@ -37,6 +37,7 @@ impl AttributeKind { Coverage(..) => No, CrateName { .. } => No, CustomMir(_, _, _) => Yes, + DebuggerVisualizer(..) => No, DenyExplicitImpl(..) => No, Deprecation { .. } => Yes, DoNotImplementViaObject(..) => No, @@ -88,6 +89,7 @@ impl AttributeKind { RustcLayoutScalarValidRangeEnd(..) => Yes, RustcLayoutScalarValidRangeStart(..) => Yes, RustcObjectLifetimeDefault => No, + RustcSimdMonomorphizeLaneLimit(..) => Yes, // Affects layout computation, which needs to work cross-crate Sanitize { .. } => No, ShouldPanic { .. } => No, SkipDuringMethodDispatch { .. } => No, diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/cmse.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/cmse.rs index 7867c1c3b48..81deb35920a 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/cmse.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/cmse.rs @@ -219,6 +219,7 @@ fn should_emit_generic_error<'tcx>(abi: ExternAbi, layout_err: &'tcx LayoutError } Unknown(..) | SizeOverflow(..) + | InvalidSimd { .. } | NormalizationFailure(..) | ReferencesError(..) | Cycle(..) => { diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs index 26e09c95e76..76ccd12797e 100644 --- a/compiler/rustc_interface/src/util.rs +++ b/compiler/rustc_interface/src/util.rs @@ -386,8 +386,8 @@ fn get_codegen_sysroot( .collect::<Vec<_>>() .join("\n* "); let err = format!( - "failed to find a `codegen-backends` folder \ - in the sysroot candidates:\n* {candidates}" + "failed to find a `codegen-backends` folder in the sysroot candidates:\n\ + * {candidates}" ); early_dcx.early_fatal(err); }); @@ -396,10 +396,8 @@ fn get_codegen_sysroot( let d = sysroot.read_dir().unwrap_or_else(|e| { let err = format!( - "failed to load default codegen backend, couldn't \ - read `{}`: {}", + "failed to load default codegen backend, couldn't read `{}`: {e}", sysroot.display(), - e ); early_dcx.early_fatal(err); }); diff --git a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp index 7518b40799b..013d68fa3e4 100644 --- a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp @@ -359,10 +359,6 @@ extern "C" LLVMTargetMachineRef LLVMRustCreateTargetMachine( return wrap(TM); } -extern "C" void LLVMRustDisposeTargetMachine(LLVMTargetMachineRef TM) { - delete unwrap(TM); -} - // Unfortunately, the LLVM C API doesn't provide a way to create the // TargetLibraryInfo pass, so we use this method to do so. extern "C" void LLVMRustAddLibraryInfo(LLVMPassManagerRef PMR, LLVMModuleRef M, diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp index 414274f24fb..9953f5e1731 100644 --- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp @@ -1685,6 +1685,14 @@ extern "C" void LLVMRustContextConfigureDiagnosticHandler( RemarkStreamer(std::move(RemarkStreamer)), LlvmRemarkStreamer(std::move(LlvmRemarkStreamer)) {} +#if LLVM_VERSION_GE(22, 0) + ~RustDiagnosticHandler() { + if (RemarkStreamer) { + RemarkStreamer->releaseSerializer(); + } + } +#endif + virtual bool handleDiagnostics(const DiagnosticInfo &DI) override { // If this diagnostic is one of the optimization remark kinds, we can // check if it's enabled before emitting it. This can avoid many @@ -1779,9 +1787,14 @@ extern "C" void LLVMRustContextConfigureDiagnosticHandler( // Do not delete the file after we gather remarks RemarkFile->keep(); +#if LLVM_VERSION_GE(22, 0) + auto RemarkSerializer = remarks::createRemarkSerializer( + llvm::remarks::Format::YAML, RemarkFile->os()); +#else auto RemarkSerializer = remarks::createRemarkSerializer( llvm::remarks::Format::YAML, remarks::SerializerMode::Separate, RemarkFile->os()); +#endif if (Error E = RemarkSerializer.takeError()) { std::string Error = std::string("Cannot create remark serializer: ") + toString(std::move(E)); diff --git a/compiler/rustc_macros/src/query.rs b/compiler/rustc_macros/src/query.rs index 5821ffa3a30..5d32950875a 100644 --- a/compiler/rustc_macros/src/query.rs +++ b/compiler/rustc_macros/src/query.rs @@ -5,7 +5,7 @@ use syn::punctuated::Punctuated; use syn::spanned::Spanned; use syn::{ AttrStyle, Attribute, Block, Error, Expr, Ident, Pat, ReturnType, Token, Type, braced, - parenthesized, parse_macro_input, parse_quote, token, + parenthesized, parse_macro_input, token, }; mod kw { diff --git a/compiler/rustc_middle/messages.ftl b/compiler/rustc_middle/messages.ftl index 279ab9a9d8f..82f3df8da3b 100644 --- a/compiler/rustc_middle/messages.ftl +++ b/compiler/rustc_middle/messages.ftl @@ -98,6 +98,12 @@ middle_layout_references_error = middle_layout_size_overflow = values of the type `{$ty}` are too big for the target architecture +middle_layout_simd_too_many = + the SIMD type `{$ty}` has more elements than the limit {$max_lanes} + +middle_layout_simd_zero_length = + the SIMD type `{$ty}` has zero elements + middle_layout_too_generic = the type `{$ty}` does not have a fixed layout middle_layout_unknown = diff --git a/compiler/rustc_middle/src/error.rs b/compiler/rustc_middle/src/error.rs index e3e1393b5f9..0be26712b9c 100644 --- a/compiler/rustc_middle/src/error.rs +++ b/compiler/rustc_middle/src/error.rs @@ -143,6 +143,12 @@ pub enum LayoutError<'tcx> { #[diag(middle_layout_size_overflow)] Overflow { ty: Ty<'tcx> }, + #[diag(middle_layout_simd_too_many)] + SimdTooManyLanes { ty: Ty<'tcx>, max_lanes: u64 }, + + #[diag(middle_layout_simd_zero_length)] + SimdZeroLength { ty: Ty<'tcx> }, + #[diag(middle_layout_normalization_failure)] NormalizationFailure { ty: Ty<'tcx>, failure_ty: String }, diff --git a/compiler/rustc_middle/src/middle/debugger_visualizer.rs b/compiler/rustc_middle/src/middle/debugger_visualizer.rs index 5a811321f58..a7f0095dcdf 100644 --- a/compiler/rustc_middle/src/middle/debugger_visualizer.rs +++ b/compiler/rustc_middle/src/middle/debugger_visualizer.rs @@ -1,15 +1,9 @@ use std::path::PathBuf; use std::sync::Arc; +use rustc_hir::attrs::DebuggerVisualizerType; use rustc_macros::{Decodable, Encodable, HashStable}; -#[derive(HashStable)] -#[derive(Copy, PartialEq, PartialOrd, Clone, Ord, Eq, Hash, Debug, Encodable, Decodable)] -pub enum DebuggerVisualizerType { - Natvis, - GdbPrettyPrinter, -} - /// A single debugger visualizer file. #[derive(HashStable)] #[derive(Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord, Encodable, Decodable)] diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs index 47b45c58b9f..507a25a4325 100644 --- a/compiler/rustc_middle/src/ty/layout.rs +++ b/compiler/rustc_middle/src/ty/layout.rs @@ -219,6 +219,15 @@ impl fmt::Display for ValidityRequirement { } #[derive(Copy, Clone, Debug, HashStable, TyEncodable, TyDecodable)] +pub enum SimdLayoutError { + /// The vector has 0 lanes. + ZeroLength, + /// The vector has more lanes than supported or permitted by + /// #\[rustc_simd_monomorphize_lane_limit\]. + TooManyLanes(u64), +} + +#[derive(Copy, Clone, Debug, HashStable, TyEncodable, TyDecodable)] pub enum LayoutError<'tcx> { /// A type doesn't have a sensible layout. /// @@ -230,6 +239,8 @@ pub enum LayoutError<'tcx> { Unknown(Ty<'tcx>), /// The size of a type exceeds [`TargetDataLayout::obj_size_bound`]. SizeOverflow(Ty<'tcx>), + /// A SIMD vector has invalid layout, such as zero-length or too many lanes. + InvalidSimd { ty: Ty<'tcx>, kind: SimdLayoutError }, /// The layout can vary due to a generic parameter. /// /// Unlike `Unknown`, this variant is a "soft" error and indicates that the layout @@ -257,6 +268,10 @@ impl<'tcx> LayoutError<'tcx> { match self { Unknown(_) => middle_layout_unknown, SizeOverflow(_) => middle_layout_size_overflow, + InvalidSimd { kind: SimdLayoutError::TooManyLanes(_), .. } => { + middle_layout_simd_too_many + } + InvalidSimd { kind: SimdLayoutError::ZeroLength, .. } => middle_layout_simd_zero_length, TooGeneric(_) => middle_layout_too_generic, NormalizationFailure(_, _) => middle_layout_normalization_failure, Cycle(_) => middle_layout_cycle, @@ -271,6 +286,10 @@ impl<'tcx> LayoutError<'tcx> { match self { Unknown(ty) => E::Unknown { ty }, SizeOverflow(ty) => E::Overflow { ty }, + InvalidSimd { ty, kind: SimdLayoutError::TooManyLanes(max_lanes) } => { + E::SimdTooManyLanes { ty, max_lanes } + } + InvalidSimd { ty, kind: SimdLayoutError::ZeroLength } => E::SimdZeroLength { ty }, TooGeneric(ty) => E::TooGeneric { ty }, NormalizationFailure(ty, e) => { E::NormalizationFailure { ty, failure_ty: e.get_type_for_failure() } @@ -293,6 +312,12 @@ impl<'tcx> fmt::Display for LayoutError<'tcx> { LayoutError::SizeOverflow(ty) => { write!(f, "values of the type `{ty}` are too big for the target architecture") } + LayoutError::InvalidSimd { ty, kind: SimdLayoutError::TooManyLanes(max_lanes) } => { + write!(f, "the SIMD type `{ty}` has more elements than the limit {max_lanes}") + } + LayoutError::InvalidSimd { ty, kind: SimdLayoutError::ZeroLength } => { + write!(f, "the SIMD type `{ty}` has zero elements") + } LayoutError::NormalizationFailure(t, e) => write!( f, "unable to determine layout for `{}` because `{}` cannot be normalized", @@ -374,6 +399,7 @@ impl<'tcx> SizeSkeleton<'tcx> { e @ LayoutError::Cycle(_) | e @ LayoutError::Unknown(_) | e @ LayoutError::SizeOverflow(_) + | e @ LayoutError::InvalidSimd { .. } | e @ LayoutError::NormalizationFailure(..) | e @ LayoutError::ReferencesError(_), ) => return Err(e), diff --git a/compiler/rustc_mir_build/src/builder/expr/as_rvalue.rs b/compiler/rustc_mir_build/src/builder/expr/as_rvalue.rs index a4ef6e92739..3a5839f2d40 100644 --- a/compiler/rustc_mir_build/src/builder/expr/as_rvalue.rs +++ b/compiler/rustc_mir_build/src/builder/expr/as_rvalue.rs @@ -8,6 +8,7 @@ use rustc_middle::middle::region; use rustc_middle::mir::interpret::Scalar; use rustc_middle::mir::*; use rustc_middle::thir::*; +use rustc_middle::ty::adjustment::PointerCoercion; use rustc_middle::ty::cast::{CastTy, mir_cast_kind}; use rustc_middle::ty::util::IntTypeExt; use rustc_middle::ty::{self, Ty, UpvarArgs}; @@ -656,6 +657,27 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block.and(rvalue) } + /// Recursively inspect a THIR expression and probe through unsizing + /// operations that can be const-folded today. + fn check_constness(&self, mut kind: &'a ExprKind<'tcx>) -> bool { + loop { + debug!(?kind, "check_constness"); + match kind { + &ExprKind::ValueTypeAscription { source: eid, user_ty: _, user_ty_span: _ } + | &ExprKind::Use { source: eid } + | &ExprKind::PointerCoercion { + cast: PointerCoercion::Unsize, + source: eid, + is_from_as_cast: _, + } + | &ExprKind::Scope { region_scope: _, lint_level: _, value: eid } => { + kind = &self.thir[eid].kind + } + _ => return matches!(Category::of(&kind), Some(Category::Constant)), + } + } + } + fn build_zero_repeat( &mut self, mut block: BasicBlock, @@ -666,7 +688,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let this = self; let value_expr = &this.thir[value]; let elem_ty = value_expr.ty; - if let Some(Category::Constant) = Category::of(&value_expr.kind) { + if this.check_constness(&value_expr.kind) { // Repeating a const does nothing } else { // For a non-const, we may need to generate an appropriate `Drop` diff --git a/compiler/rustc_mir_build/src/builder/mod.rs b/compiler/rustc_mir_build/src/builder/mod.rs index cdb2c5561ce..7ca94e655fb 100644 --- a/compiler/rustc_mir_build/src/builder/mod.rs +++ b/compiler/rustc_mir_build/src/builder/mod.rs @@ -395,12 +395,10 @@ enum NeedsTemporary { Maybe, } -/////////////////////////////////////////////////////////////////////////// /// The `BlockAnd` "monad" packages up the new basic block along with a /// produced value (sometimes just unit, of course). The `unpack!` /// macro (and methods below) makes working with `BlockAnd` much more /// convenient. - #[must_use = "if you don't use one of these results, you're leaving a dangling edge"] struct BlockAnd<T>(BasicBlock, T); @@ -438,9 +436,7 @@ macro_rules! unpack { }}; } -/////////////////////////////////////////////////////////////////////////// -/// the main entry point for building MIR for a function - +/// The main entry point for building MIR for a function. fn construct_fn<'tcx>( tcx: TyCtxt<'tcx>, fn_def: LocalDefId, diff --git a/compiler/rustc_mir_transform/src/patch.rs b/compiler/rustc_mir_transform/src/patch.rs index c781d1a5324..d831ab50b1a 100644 --- a/compiler/rustc_mir_transform/src/patch.rs +++ b/compiler/rustc_mir_transform/src/patch.rs @@ -1,4 +1,5 @@ -use rustc_index::{Idx, IndexVec}; +use rustc_data_structures::fx::FxHashMap; +use rustc_index::Idx; use rustc_middle::mir::*; use rustc_middle::ty::Ty; use rustc_span::Span; @@ -9,7 +10,7 @@ use tracing::debug; /// and replacement of terminators, and then apply the queued changes all at /// once with `apply`. This is useful for MIR transformation passes. pub(crate) struct MirPatch<'tcx> { - term_patch_map: IndexVec<BasicBlock, Option<TerminatorKind<'tcx>>>, + term_patch_map: FxHashMap<BasicBlock, TerminatorKind<'tcx>>, new_blocks: Vec<BasicBlockData<'tcx>>, new_statements: Vec<(Location, StatementKind<'tcx>)>, new_locals: Vec<LocalDecl<'tcx>>, @@ -22,17 +23,21 @@ pub(crate) struct MirPatch<'tcx> { terminate_block: Option<(BasicBlock, UnwindTerminateReason)>, body_span: Span, next_local: usize, + /// The number of blocks at the start of the transformation. New blocks + /// get appended at the end. + next_block: usize, } impl<'tcx> MirPatch<'tcx> { /// Creates a new, empty patch. pub(crate) fn new(body: &Body<'tcx>) -> Self { let mut result = MirPatch { - term_patch_map: IndexVec::from_elem(None, &body.basic_blocks), + term_patch_map: Default::default(), new_blocks: vec![], new_statements: vec![], new_locals: vec![], next_local: body.local_decls.len(), + next_block: body.basic_blocks.len(), resume_block: None, unreachable_cleanup_block: None, unreachable_no_cleanup_block: None, @@ -141,7 +146,7 @@ impl<'tcx> MirPatch<'tcx> { /// Has a replacement of this block's terminator been queued in this patch? pub(crate) fn is_term_patched(&self, bb: BasicBlock) -> bool { - self.term_patch_map[bb].is_some() + self.term_patch_map.contains_key(&bb) } /// Universal getter for block data, either it is in 'old' blocks or in patched ones @@ -194,18 +199,17 @@ impl<'tcx> MirPatch<'tcx> { /// Queues the addition of a new basic block. pub(crate) fn new_block(&mut self, data: BasicBlockData<'tcx>) -> BasicBlock { - let block = self.term_patch_map.next_index(); + let block = BasicBlock::from_usize(self.next_block + self.new_blocks.len()); debug!("MirPatch: new_block: {:?}: {:?}", block, data); self.new_blocks.push(data); - self.term_patch_map.push(None); block } /// Queues the replacement of a block's terminator. pub(crate) fn patch_terminator(&mut self, block: BasicBlock, new: TerminatorKind<'tcx>) { - assert!(self.term_patch_map[block].is_none()); + assert!(!self.term_patch_map.contains_key(&block)); debug!("MirPatch: patch_terminator({:?}, {:?})", block, new); - self.term_patch_map[block] = Some(new); + self.term_patch_map.insert(block, new); } /// Queues the insertion of a statement at a given location. The statement @@ -244,6 +248,7 @@ impl<'tcx> MirPatch<'tcx> { self.new_blocks.len(), body.basic_blocks.len() ); + debug_assert_eq!(self.next_block, body.basic_blocks.len()); let bbs = if self.term_patch_map.is_empty() && self.new_blocks.is_empty() { body.basic_blocks.as_mut_preserves_cfg() } else { @@ -251,11 +256,12 @@ impl<'tcx> MirPatch<'tcx> { }; bbs.extend(self.new_blocks); body.local_decls.extend(self.new_locals); - for (src, patch) in self.term_patch_map.into_iter_enumerated() { - if let Some(patch) = patch { - debug!("MirPatch: patching block {:?}", src); - bbs[src].terminator_mut().kind = patch; - } + + // The order in which we patch terminators does not change the result. + #[allow(rustc::potential_query_instability)] + for (src, patch) in self.term_patch_map { + debug!("MirPatch: patching block {:?}", src); + bbs[src].terminator_mut().kind = patch; } let mut new_statements = self.new_statements; @@ -273,8 +279,8 @@ impl<'tcx> MirPatch<'tcx> { } debug!("MirPatch: adding statement {:?} at loc {:?}+{}", stmt, loc, delta); loc.statement_index += delta; - let source_info = Self::source_info_for_index(&body[loc.block], loc); - body[loc.block] + let source_info = Self::source_info_for_index(&bbs[loc.block], loc); + bbs[loc.block] .statements .insert(loc.statement_index, Statement::new(source_info, stmt)); delta += 1; diff --git a/compiler/rustc_passes/messages.ftl b/compiler/rustc_passes/messages.ftl index 6cd68380e46..870e0a90b54 100644 --- a/compiler/rustc_passes/messages.ftl +++ b/compiler/rustc_passes/messages.ftl @@ -93,15 +93,6 @@ passes_dead_codes = } } never {$participle} -passes_debug_visualizer_invalid = - invalid argument - .note_1 = expected: `natvis_file = "..."` - .note_2 = OR - .note_3 = expected: `gdb_script_file = "..."` - -passes_debug_visualizer_placement = - attribute should be applied to a module - passes_debug_visualizer_unreadable = couldn't read {$file}: {$error} diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index 94c9e71ce77..007353f136d 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -256,6 +256,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { | AttributeKind::MacroEscape( .. ) | AttributeKind::RustcLayoutScalarValidRangeStart(..) | AttributeKind::RustcLayoutScalarValidRangeEnd(..) + | AttributeKind::RustcSimdMonomorphizeLaneLimit(..) | AttributeKind::ExportStable | AttributeKind::FfiConst(..) | AttributeKind::UnstableFeatureBound(..) @@ -281,6 +282,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { | AttributeKind::ObjcClass { .. } | AttributeKind::ObjcSelector { .. } | AttributeKind::RustcCoherenceIsCore(..) + | AttributeKind::DebuggerVisualizer(..) ) => { /* do nothing */ } Attribute::Unparsed(attr_item) => { style = Some(attr_item.style); @@ -301,7 +303,6 @@ impl<'tcx> CheckAttrVisitor<'tcx> { &mut doc_aliases, ), [sym::no_link, ..] => self.check_no_link(hir_id, attr, span, target), - [sym::debugger_visualizer, ..] => self.check_debugger_visualizer(attr, target), [sym::rustc_no_implicit_autorefs, ..] => { self.check_applied_to_fn_or_method(hir_id, attr.span(), span, target) } @@ -1782,20 +1783,6 @@ impl<'tcx> CheckAttrVisitor<'tcx> { } } - /// Checks if the items on the `#[debugger_visualizer]` attribute are valid. - fn check_debugger_visualizer(&self, attr: &Attribute, target: Target) { - // Here we only check that the #[debugger_visualizer] attribute is attached - // to nothing other than a module. All other checks are done in the - // `debugger_visualizer` query where they need to be done for decoding - // anyway. - match target { - Target::Mod => {} - _ => { - self.dcx().emit_err(errors::DebugVisualizerPlacement { span: attr.span() }); - } - } - } - /// Outputs an error for `#[allow_internal_unstable]` which can only be applied to macros. /// (Allows proc_macro functions) fn check_rustc_allow_const_fn_unstable( diff --git a/compiler/rustc_passes/src/debugger_visualizer.rs b/compiler/rustc_passes/src/debugger_visualizer.rs index 7a7a8175e55..7211f3cf85b 100644 --- a/compiler/rustc_passes/src/debugger_visualizer.rs +++ b/compiler/rustc_passes/src/debugger_visualizer.rs @@ -1,67 +1,60 @@ //! Detecting usage of the `#[debugger_visualizer]` attribute. -use rustc_ast::Attribute; +use rustc_ast::ast::NodeId; +use rustc_ast::{HasNodeId, ItemKind, ast}; +use rustc_attr_parsing::AttributeParser; use rustc_expand::base::resolve_path; -use rustc_middle::middle::debugger_visualizer::{DebuggerVisualizerFile, DebuggerVisualizerType}; +use rustc_hir::Attribute; +use rustc_hir::attrs::{AttributeKind, DebugVisualizer}; +use rustc_middle::middle::debugger_visualizer::DebuggerVisualizerFile; use rustc_middle::query::{LocalCrate, Providers}; use rustc_middle::ty::TyCtxt; use rustc_session::Session; -use rustc_span::sym; +use rustc_span::{DUMMY_SP, Span, sym}; -use crate::errors::{DebugVisualizerInvalid, DebugVisualizerUnreadable}; +use crate::errors::DebugVisualizerUnreadable; impl DebuggerVisualizerCollector<'_> { - fn check_for_debugger_visualizer(&mut self, attr: &Attribute) { - if attr.has_name(sym::debugger_visualizer) { - let Some(hints) = attr.meta_item_list() else { - self.sess.dcx().emit_err(DebugVisualizerInvalid { span: attr.span }); - return; - }; + fn check_for_debugger_visualizer( + &mut self, + attrs: &[ast::Attribute], + span: Span, + node_id: NodeId, + ) { + if let Some(Attribute::Parsed(AttributeKind::DebuggerVisualizer(visualizers))) = + AttributeParser::parse_limited( + &self.sess, + attrs, + sym::debugger_visualizer, + span, + node_id, + None, + ) + { + for DebugVisualizer { span, visualizer_type, path } in visualizers { + let file = match resolve_path(&self.sess, path.as_str(), span) { + Ok(file) => file, + Err(err) => { + err.emit(); + return; + } + }; - let [hint] = hints.as_slice() else { - self.sess.dcx().emit_err(DebugVisualizerInvalid { span: attr.span }); - return; - }; - - let Some(meta_item) = hint.meta_item() else { - self.sess.dcx().emit_err(DebugVisualizerInvalid { span: attr.span }); - return; - }; - - let (visualizer_type, visualizer_path) = match (meta_item.name(), meta_item.value_str()) - { - (Some(sym::natvis_file), Some(value)) => (DebuggerVisualizerType::Natvis, value), - (Some(sym::gdb_script_file), Some(value)) => { - (DebuggerVisualizerType::GdbPrettyPrinter, value) - } - (_, _) => { - self.sess.dcx().emit_err(DebugVisualizerInvalid { span: meta_item.span }); - return; - } - }; - - let file = match resolve_path(&self.sess, visualizer_path.as_str(), attr.span) { - Ok(file) => file, - Err(err) => { - err.emit(); - return; - } - }; - - match self.sess.source_map().load_binary_file(&file) { - Ok((source, _)) => { - self.visualizers.push(DebuggerVisualizerFile::new( - source, - visualizer_type, - file, - )); - } - Err(error) => { - self.sess.dcx().emit_err(DebugVisualizerUnreadable { - span: meta_item.span, - file: &file, - error, - }); + match self.sess.source_map().load_binary_file(&file) { + Ok((source, _)) => { + self.visualizers.push(DebuggerVisualizerFile::new( + source, + visualizer_type, + file, + )); + } + Err(error) => { + self.sess.dcx().emit_err(DebugVisualizerUnreadable { + span, + file: &file, + error, + }); + } } } } @@ -74,9 +67,15 @@ struct DebuggerVisualizerCollector<'a> { } impl<'ast> rustc_ast::visit::Visitor<'ast> for DebuggerVisualizerCollector<'_> { - fn visit_attribute(&mut self, attr: &'ast Attribute) { - self.check_for_debugger_visualizer(attr); - rustc_ast::visit::walk_attribute(self, attr); + fn visit_item(&mut self, item: &'ast rustc_ast::Item) -> Self::Result { + if let ItemKind::Mod(..) = item.kind { + self.check_for_debugger_visualizer(&item.attrs, item.span, item.node_id()); + } + rustc_ast::visit::walk_item(self, item); + } + fn visit_crate(&mut self, krate: &'ast ast::Crate) -> Self::Result { + self.check_for_debugger_visualizer(&krate.attrs, DUMMY_SP, krate.id); + rustc_ast::visit::walk_crate(self, krate); } } diff --git a/compiler/rustc_passes/src/errors.rs b/compiler/rustc_passes/src/errors.rs index cd8935f6b2f..cfd6b9e6dff 100644 --- a/compiler/rustc_passes/src/errors.rs +++ b/compiler/rustc_passes/src/errors.rs @@ -476,23 +476,6 @@ pub(crate) struct MacroOnlyAttribute { } #[derive(Diagnostic)] -#[diag(passes_debug_visualizer_placement)] -pub(crate) struct DebugVisualizerPlacement { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(passes_debug_visualizer_invalid)] -#[note(passes_note_1)] -#[note(passes_note_2)] -#[note(passes_note_3)] -pub(crate) struct DebugVisualizerInvalid { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] #[diag(passes_debug_visualizer_unreadable)] pub(crate) struct DebugVisualizerUnreadable<'a> { #[primary_span] diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs index 1bddbd03cc3..c9dbb204f61 100644 --- a/compiler/rustc_privacy/src/lib.rs +++ b/compiler/rustc_privacy/src/lib.rs @@ -45,7 +45,7 @@ use tracing::debug; rustc_fluent_macro::fluent_messages! { "../messages.ftl" } //////////////////////////////////////////////////////////////////////////////// -/// Generic infrastructure used to implement specific visitors below. +// Generic infrastructure used to implement specific visitors below. //////////////////////////////////////////////////////////////////////////////// struct LazyDefPathStr<'tcx> { @@ -309,10 +309,7 @@ fn min(vis1: ty::Visibility, vis2: ty::Visibility, tcx: TyCtxt<'_>) -> ty::Visib if vis1.is_at_least(vis2, tcx) { vis2 } else { vis1 } } -//////////////////////////////////////////////////////////////////////////////// /// Visitor used to determine impl visibility and reachability. -//////////////////////////////////////////////////////////////////////////////// - struct FindMin<'a, 'tcx, VL: VisibilityLike, const SHALLOW: bool> { tcx: TyCtxt<'tcx>, effective_visibilities: &'a EffectiveVisibilities, @@ -387,10 +384,7 @@ impl VisibilityLike for EffectiveVisibility { } } -//////////////////////////////////////////////////////////////////////////////// /// The embargo visitor, used to determine the exports of the AST. -//////////////////////////////////////////////////////////////////////////////// - struct EmbargoVisitor<'tcx> { tcx: TyCtxt<'tcx>, @@ -849,9 +843,7 @@ impl<'tcx> DefIdVisitor<'tcx> for ReachEverythingInTheInterfaceVisitor<'_, 'tcx> } } -//////////////////////////////////////////////////////////////////////////////// /// Visitor, used for EffectiveVisibilities table checking -//////////////////////////////////////////////////////////////////////////////// pub struct TestReachabilityVisitor<'a, 'tcx> { tcx: TyCtxt<'tcx>, effective_visibilities: &'a EffectiveVisibilities, @@ -909,13 +901,11 @@ impl<'a, 'tcx> TestReachabilityVisitor<'a, 'tcx> { } } -////////////////////////////////////////////////////////////////////////////////////// /// Name privacy visitor, checks privacy and reports violations. +/// /// Most of name privacy checks are performed during the main resolution phase, /// or later in type checking when field accesses and associated items are resolved. /// This pass performs remaining checks for fields in struct expressions and patterns. -////////////////////////////////////////////////////////////////////////////////////// - struct NamePrivacyVisitor<'tcx> { tcx: TyCtxt<'tcx>, maybe_typeck_results: Option<&'tcx ty::TypeckResults<'tcx>>, @@ -1120,12 +1110,10 @@ impl<'tcx> Visitor<'tcx> for NamePrivacyVisitor<'tcx> { } } -//////////////////////////////////////////////////////////////////////////////////////////// /// Type privacy visitor, checks types for privacy and reports violations. +/// /// Both explicitly written types and inferred types of expressions and patterns are checked. /// Checks are performed on "semantic" types regardless of names and their hygiene. -//////////////////////////////////////////////////////////////////////////////////////////// - struct TypePrivacyVisitor<'tcx> { tcx: TyCtxt<'tcx>, module_def_id: LocalModDefId, @@ -1345,13 +1333,11 @@ impl<'tcx> DefIdVisitor<'tcx> for TypePrivacyVisitor<'tcx> { } } -/////////////////////////////////////////////////////////////////////////////// /// SearchInterfaceForPrivateItemsVisitor traverses an item's interface and /// finds any private components in it. +/// /// PrivateItemsInPublicInterfacesVisitor ensures there are no private types /// and traits in public interfaces. -/////////////////////////////////////////////////////////////////////////////// - struct SearchInterfaceForPrivateItemsVisitor<'tcx> { tcx: TyCtxt<'tcx>, item_def_id: LocalDefId, diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs index fa3c06059b3..c10b6ca7e71 100644 --- a/compiler/rustc_resolve/src/build_reduced_graph.rs +++ b/compiler/rustc_resolve/src/build_reduced_graph.rs @@ -5,7 +5,6 @@ //! unexpanded macros in the fragment are visited and registered. //! Imports are also considered items and placed into modules here, but not resolved yet. -use std::cell::Cell; use std::sync::Arc; use rustc_ast::visit::{self, AssocCtxt, Visitor, WalkItemKind}; @@ -35,6 +34,7 @@ use crate::Namespace::{MacroNS, TypeNS, ValueNS}; use crate::def_collector::collect_definitions; use crate::imports::{ImportData, ImportKind}; use crate::macros::{MacroRulesBinding, MacroRulesScope, MacroRulesScopeRef}; +use crate::ref_mut::CmCell; use crate::{ BindingKey, ExternPreludeEntry, Finalize, MacroData, Module, ModuleKind, ModuleOrUniformRoot, NameBinding, ParentScope, PathResult, ResolutionError, Resolver, Segment, Used, @@ -87,7 +87,8 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { // because they can be fetched by glob imports from those modules, and bring traits // into scope both directly and through glob imports. let key = BindingKey::new_disambiguated(ident, ns, || { - parent.underscore_disambiguator.update(|d| d + 1); + // FIXME(batched): Will be fixed in batched resolution. + parent.underscore_disambiguator.update_unchecked(|d| d + 1); parent.underscore_disambiguator.get() }); if self @@ -477,7 +478,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { kind, parent_scope: self.parent_scope, module_path, - imported_module: Cell::new(None), + imported_module: CmCell::new(None), span, use_span: item.span, use_span_with_attributes: item.span_with_attributes(), @@ -505,7 +506,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { }); } } - ImportKind::Glob { .. } => current_module.globs.borrow_mut().push(import), + ImportKind::Glob { .. } => current_module.globs.borrow_mut(self.r).push(import), _ => unreachable!(), } } @@ -668,7 +669,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { } ast::UseTreeKind::Glob => { if !ast::attr::contains_name(&item.attrs, sym::prelude_import) { - let kind = ImportKind::Glob { max_vis: Cell::new(None), id }; + let kind = ImportKind::Glob { max_vis: CmCell::new(None), id }; self.add_import(prefix, kind, use_tree.span, item, root_span, item.id, vis); } else { // Resolve the prelude import early. @@ -971,7 +972,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { kind: ImportKind::ExternCrate { source: orig_name, target: ident, id: item.id }, root_id: item.id, parent_scope: self.parent_scope, - imported_module: Cell::new(module), + imported_module: CmCell::new(module), has_attributes: !item.attrs.is_empty(), use_span_with_attributes: item.span_with_attributes(), use_span: item.span, @@ -1103,7 +1104,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { kind: ImportKind::MacroUse { warn_private }, root_id: item.id, parent_scope: this.parent_scope, - imported_module: Cell::new(Some(ModuleOrUniformRoot::Module(module))), + imported_module: CmCell::new(Some(ModuleOrUniformRoot::Module(module))), use_span_with_attributes: item.span_with_attributes(), has_attributes: !item.attrs.is_empty(), use_span: item.span, @@ -1196,7 +1197,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { /// directly into its parent scope's module. fn visit_invoc_in_module(&mut self, id: NodeId) -> MacroRulesScopeRef<'ra> { let invoc_id = self.visit_invoc(id); - self.parent_scope.module.unexpanded_invocations.borrow_mut().insert(invoc_id); + self.parent_scope.module.unexpanded_invocations.borrow_mut(self.r).insert(invoc_id); self.r.arenas.alloc_macro_rules_scope(MacroRulesScope::Invocation(invoc_id)) } @@ -1274,7 +1275,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { kind: ImportKind::MacroExport, root_id: item.id, parent_scope: self.parent_scope, - imported_module: Cell::new(None), + imported_module: CmCell::new(None), has_attributes: false, use_span_with_attributes: span, use_span: span, diff --git a/compiler/rustc_resolve/src/ident.rs b/compiler/rustc_resolve/src/ident.rs index 35051675fd8..51489019950 100644 --- a/compiler/rustc_resolve/src/ident.rs +++ b/compiler/rustc_resolve/src/ident.rs @@ -492,14 +492,13 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { _ => Err(Determinacy::Determined), }, Scope::Module(module, derive_fallback_lint_id) => { - // FIXME: use `finalize_scope` here. let (adjusted_parent_scope, adjusted_finalize) = if matches!(scope_set, ScopeSet::ModuleAndExternPrelude(..)) { - (parent_scope, finalize) + (parent_scope, finalize_scope!()) } else { ( &ParentScope { module, ..*parent_scope }, - finalize.map(|f| Finalize { used: Used::Scope, ..f }), + finalize_scope!().map(|f| Finalize { used: Used::Scope, ..f }), ) }; let binding = this.reborrow().resolve_ident_in_module_unadjusted( @@ -557,8 +556,10 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { None => Err(Determinacy::Determined), }, Scope::ExternPreludeItems => { - // FIXME: use `finalize_scope` here. - match this.reborrow().extern_prelude_get_item(ident, finalize.is_some()) { + match this + .reborrow() + .extern_prelude_get_item(ident, finalize_scope!().is_some()) + { Some(binding) => { extern_prelude_item_binding = Some(binding); Ok((binding, Flags::empty())) diff --git a/compiler/rustc_resolve/src/imports.rs b/compiler/rustc_resolve/src/imports.rs index 33c2c7436d1..ce90a1bcd31 100644 --- a/compiler/rustc_resolve/src/imports.rs +++ b/compiler/rustc_resolve/src/imports.rs @@ -1,6 +1,5 @@ //! A bunch of methods and structures more or less related to resolving imports. -use std::cell::Cell; use std::mem; use rustc_ast::NodeId; @@ -32,6 +31,7 @@ use crate::errors::{ CannotBeReexportedPrivateNS, CannotDetermineImportResolution, CannotGlobImportAllCrates, ConsiderAddingMacroExport, ConsiderMarkingAsPub, ConsiderMarkingAsPubCrate, }; +use crate::ref_mut::CmCell; use crate::{ AmbiguityError, AmbiguityKind, BindingKey, CmResolver, Determinacy, Finalize, ImportSuggestion, Module, ModuleOrUniformRoot, NameBinding, NameBindingData, NameBindingKind, ParentScope, @@ -68,7 +68,7 @@ pub(crate) enum ImportKind<'ra> { /// It will directly use `source` when the format is `use prefix::source`. target: Ident, /// Bindings introduced by the import. - bindings: PerNS<Cell<PendingBinding<'ra>>>, + bindings: PerNS<CmCell<PendingBinding<'ra>>>, /// `true` for `...::{self [as target]}` imports, `false` otherwise. type_ns_only: bool, /// Did this import result from a nested import? ie. `use foo::{bar, baz};` @@ -89,7 +89,7 @@ pub(crate) enum ImportKind<'ra> { Glob { // The visibility of the greatest re-export. // n.b. `max_vis` is only used in `finalize_import` to check for re-export errors. - max_vis: Cell<Option<Visibility>>, + max_vis: CmCell<Option<Visibility>>, id: NodeId, }, ExternCrate { @@ -182,7 +182,7 @@ pub(crate) struct ImportData<'ra> { /// |`use ::foo` | `ModuleOrUniformRoot::ExternPrelude` | 2018+ editions | /// |`use ::foo` | `ModuleOrUniformRoot::ModuleAndExternPrelude` | a special case in 2015 edition | /// |`use foo` | `ModuleOrUniformRoot::CurrentScope` | - | - pub imported_module: Cell<Option<ModuleOrUniformRoot<'ra>>>, + pub imported_module: CmCell<Option<ModuleOrUniformRoot<'ra>>>, pub vis: Visibility, /// Span of the visibility. @@ -320,7 +320,8 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { && (vis == import_vis || max_vis.get().is_none_or(|max_vis| vis.is_at_least(max_vis, self.tcx))) { - max_vis.set(Some(vis.expect_local())) + // FIXME(batched): Will be fixed in batched import resolution. + max_vis.set_unchecked(Some(vis.expect_local())) } self.arenas.alloc_name_binding(NameBindingData { @@ -349,7 +350,8 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { // because they can be fetched by glob imports from those modules, and bring traits // into scope both directly and through glob imports. let key = BindingKey::new_disambiguated(ident, ns, || { - module.underscore_disambiguator.update(|d| d + 1); + // FIXME(batched): Will be fixed in batched resolution. + module.underscore_disambiguator.update_unchecked(|d| d + 1); module.underscore_disambiguator.get() }); self.update_local_resolution(module, key, warn_ambiguity, |this, resolution| { @@ -482,7 +484,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } }; - let Ok(glob_importers) = module.glob_importers.try_borrow_mut() else { + let Ok(glob_importers) = module.glob_importers.try_borrow_mut_unchecked() else { return t; }; @@ -862,7 +864,8 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } }; - import.imported_module.set(Some(module)); + // FIXME(batched): Will be fixed in batched import resolution. + import.imported_module.set_unchecked(Some(module)); let (source, target, bindings, type_ns_only) = match import.kind { ImportKind::Single { source, target, ref bindings, type_ns_only, .. } => { (source, target, bindings, type_ns_only) @@ -937,7 +940,8 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { PendingBinding::Pending } }; - bindings[ns].set(binding); + // FIXME(batched): Will be fixed in batched import resolution. + bindings[ns].set_unchecked(binding); } }); @@ -1508,7 +1512,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } // Add to module's glob_importers - module.glob_importers.borrow_mut().push(import); + module.glob_importers.borrow_mut_unchecked().push(import); // Ensure that `resolutions` isn't borrowed during `try_define`, // since it might get updated via a glob cycle. @@ -1550,7 +1554,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { // reporting conflicts, and reporting unresolved imports. fn finalize_resolutions_in(&mut self, module: Module<'ra>) { // Since import resolution is finished, globs will not define any more names. - *module.globs.borrow_mut() = Vec::new(); + *module.globs.borrow_mut(self) = Vec::new(); let Some(def_id) = module.opt_def_id() else { return }; diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs index 8b185ce7ef2..8959068b2a6 100644 --- a/compiler/rustc_resolve/src/lib.rs +++ b/compiler/rustc_resolve/src/lib.rs @@ -19,6 +19,7 @@ #![feature(default_field_values)] #![feature(if_let_guard)] #![feature(iter_intersperse)] +#![feature(ptr_as_ref_unchecked)] #![feature(rustc_attrs)] #![feature(rustdoc_internals)] #![recursion_limit = "256"] @@ -26,7 +27,7 @@ use std::cell::{Cell, Ref, RefCell}; use std::collections::BTreeSet; -use std::fmt; +use std::fmt::{self}; use std::sync::Arc; use diagnostics::{ImportSuggestion, LabelSuggestion, Suggestion}; @@ -95,6 +96,8 @@ pub mod rustdoc; pub use macros::registered_tools_ast; +use crate::ref_mut::{CmCell, CmRefCell}; + rustc_fluent_macro::fluent_messages! { "../messages.ftl" } #[derive(Debug)] @@ -592,22 +595,22 @@ struct ModuleData<'ra> { /// Resolutions in modules from other crates are not populated until accessed. lazy_resolutions: Resolutions<'ra>, /// True if this is a module from other crate that needs to be populated on access. - populate_on_access: Cell<bool>, + populate_on_access: Cell<bool>, // FIXME(parallel): Use an atomic in parallel import resolution /// Used to disambiguate underscore items (`const _: T = ...`) in the module. - underscore_disambiguator: Cell<u32>, + underscore_disambiguator: CmCell<u32>, /// Macro invocations that can expand into items in this module. - unexpanded_invocations: RefCell<FxHashSet<LocalExpnId>>, + unexpanded_invocations: CmRefCell<FxHashSet<LocalExpnId>>, /// Whether `#[no_implicit_prelude]` is active. no_implicit_prelude: bool, - glob_importers: RefCell<Vec<Import<'ra>>>, - globs: RefCell<Vec<Import<'ra>>>, + glob_importers: CmRefCell<Vec<Import<'ra>>>, + globs: CmRefCell<Vec<Import<'ra>>>, /// Used to memoize the traits in this module for faster searches through all traits in scope. traits: - RefCell<Option<Box<[(Macros20NormalizedIdent, NameBinding<'ra>, Option<Module<'ra>>)]>>>, + CmRefCell<Option<Box<[(Macros20NormalizedIdent, NameBinding<'ra>, Option<Module<'ra>>)]>>>, /// Span of the module itself. Used for error reporting. span: Span, @@ -656,12 +659,12 @@ impl<'ra> ModuleData<'ra> { kind, lazy_resolutions: Default::default(), populate_on_access: Cell::new(is_foreign), - underscore_disambiguator: Cell::new(0), + underscore_disambiguator: CmCell::new(0), unexpanded_invocations: Default::default(), no_implicit_prelude, - glob_importers: RefCell::new(Vec::new()), - globs: RefCell::new(Vec::new()), - traits: RefCell::new(None), + glob_importers: CmRefCell::new(Vec::new()), + globs: CmRefCell::new(Vec::new()), + traits: CmRefCell::new(None), span, expansion, self_binding, @@ -696,7 +699,7 @@ impl<'ra> Module<'ra> { /// This modifies `self` in place. The traits will be stored in `self.traits`. fn ensure_traits<'tcx>(self, resolver: &impl AsRef<Resolver<'ra, 'tcx>>) { - let mut traits = self.traits.borrow_mut(); + let mut traits = self.traits.borrow_mut(resolver.as_ref()); if traits.is_none() { let mut collected_traits = Vec::new(); self.for_each_child(resolver, |r, name, ns, binding| { @@ -1974,6 +1977,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { fn resolutions(&self, module: Module<'ra>) -> &'ra Resolutions<'ra> { if module.populate_on_access.get() { + // FIXME(batched): Will be fixed in batched import resolution. module.populate_on_access.set(false); self.build_reduced_graph_external(module); } @@ -2504,9 +2508,20 @@ pub fn provide(providers: &mut Providers) { providers.registered_tools = macros::registered_tools; } +/// A wrapper around `&mut Resolver` that may be mutable or immutable, depending on a conditions. +/// +/// `Cm` stands for "conditionally mutable". +/// +/// Prefer constructing it through [`Resolver::cm`] to ensure correctness. +type CmResolver<'r, 'ra, 'tcx> = ref_mut::RefOrMut<'r, Resolver<'ra, 'tcx>>; + mod ref_mut { + use std::cell::{BorrowMutError, Cell, Ref, RefCell, RefMut}; + use std::fmt; use std::ops::Deref; + use crate::Resolver; + /// A wrapper around a mutable reference that conditionally allows mutable access. pub(crate) struct RefOrMut<'a, T> { p: &'a mut T, @@ -2555,11 +2570,86 @@ mod ref_mut { self.p } } -} -/// A wrapper around `&mut Resolver` that may be mutable or immutable, depending on a conditions. -/// -/// `Cm` stands for "conditionally mutable". -/// -/// Prefer constructing it through [`Resolver::cm`] to ensure correctness. -type CmResolver<'r, 'ra, 'tcx> = ref_mut::RefOrMut<'r, Resolver<'ra, 'tcx>>; + /// A wrapper around a [`Cell`] that only allows mutation based on a condition in the resolver. + #[derive(Default)] + pub(crate) struct CmCell<T>(Cell<T>); + + impl<T: Copy + fmt::Debug> fmt::Debug for CmCell<T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.debug_tuple("CmCell").field(&self.get()).finish() + } + } + + impl<T: Copy> Clone for CmCell<T> { + #[inline] + fn clone(&self) -> CmCell<T> { + CmCell::new(self.get()) + } + } + + impl<T: Copy> CmCell<T> { + pub(crate) const fn get(&self) -> T { + self.0.get() + } + + pub(crate) fn update_unchecked(&self, f: impl FnOnce(T) -> T) + where + T: Copy, + { + let old = self.get(); + self.set_unchecked(f(old)); + } + } + + impl<T> CmCell<T> { + pub(crate) const fn new(value: T) -> CmCell<T> { + CmCell(Cell::new(value)) + } + + pub(crate) fn set_unchecked(&self, val: T) { + self.0.set(val); + } + + pub(crate) fn into_inner(self) -> T { + self.0.into_inner() + } + } + + /// A wrapper around a [`RefCell`] that only allows mutable borrows based on a condition in the resolver. + #[derive(Default)] + pub(crate) struct CmRefCell<T>(RefCell<T>); + + impl<T> CmRefCell<T> { + pub(crate) const fn new(value: T) -> CmRefCell<T> { + CmRefCell(RefCell::new(value)) + } + + #[inline] + #[track_caller] + pub(crate) fn borrow_mut_unchecked(&self) -> RefMut<'_, T> { + self.0.borrow_mut() + } + + #[inline] + #[track_caller] + pub(crate) fn borrow_mut<'ra, 'tcx>(&self, r: &Resolver<'ra, 'tcx>) -> RefMut<'_, T> { + if r.assert_speculative { + panic!("Not allowed to mutably borrow a CmRefCell during speculative resolution"); + } + self.borrow_mut_unchecked() + } + + #[inline] + #[track_caller] + pub(crate) fn try_borrow_mut_unchecked(&self) -> Result<RefMut<'_, T>, BorrowMutError> { + self.0.try_borrow_mut() + } + + #[inline] + #[track_caller] + pub(crate) fn borrow(&self) -> Ref<'_, T> { + self.0.borrow() + } + } +} diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs index d3e98ef839b..c50dfd41b51 100644 --- a/compiler/rustc_resolve/src/macros.rs +++ b/compiler/rustc_resolve/src/macros.rs @@ -189,7 +189,7 @@ impl<'ra, 'tcx> ResolverExpand for Resolver<'ra, 'tcx> { let output_macro_rules_scope = self.build_reduced_graph(fragment, parent_scope); self.output_macro_rules_scopes.insert(expansion, output_macro_rules_scope); - parent_scope.module.unexpanded_invocations.borrow_mut().remove(&expansion); + parent_scope.module.unexpanded_invocations.borrow_mut(self).remove(&expansion); if let Some(unexpanded_invocations) = self.impl_unexpanded_invocations.get_mut(&self.invocation_parent(expansion)) { diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 4e48c96afd6..faf32523baa 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -1943,6 +1943,7 @@ symbols! { rustc_regions, rustc_reservation_impl, rustc_serialize, + rustc_simd_monomorphize_lane_limit, rustc_skip_during_method_dispatch, rustc_specialization_trait, rustc_std_internal_symbol, diff --git a/compiler/rustc_symbol_mangling/src/v0.rs b/compiler/rustc_symbol_mangling/src/v0.rs index 9fa7e2f1003..d24924b424a 100644 --- a/compiler/rustc_symbol_mangling/src/v0.rs +++ b/compiler/rustc_symbol_mangling/src/v0.rs @@ -262,15 +262,16 @@ impl<'tcx> V0SymbolMangler<'tcx> { fn print_pat(&mut self, pat: ty::Pattern<'tcx>) -> Result<(), std::fmt::Error> { Ok(match *pat { ty::PatternKind::Range { start, end } => { - let consts = [start, end]; - for ct in consts { - Ty::new_array_with_const_len(self.tcx, self.tcx.types.unit, ct).print(self)?; - } + self.push("R"); + self.print_const(start)?; + self.print_const(end)?; } ty::PatternKind::Or(patterns) => { + self.push("O"); for pat in patterns { self.print_pat(pat)?; } + self.push("E"); } }) } @@ -498,12 +499,9 @@ impl<'tcx> Printer<'tcx> for V0SymbolMangler<'tcx> { } ty::Pat(ty, pat) => { - // HACK: Represent as tuple until we have something better. - // HACK: constants are used in arrays, even if the types don't match. - self.push("T"); + self.push("W"); ty.print(self)?; self.print_pat(pat)?; - self.push("E"); } ty::Array(ty, len) => { diff --git a/compiler/rustc_target/src/spec/base/windows_gnu.rs b/compiler/rustc_target/src/spec/base/windows_gnu.rs index 4ba11021988..2867428e42f 100644 --- a/compiler/rustc_target/src/spec/base/windows_gnu.rs +++ b/compiler/rustc_target/src/spec/base/windows_gnu.rs @@ -93,10 +93,7 @@ pub(crate) fn opts() -> TargetOptions { binary_format: BinaryFormat::Coff, allows_weak_linkage: false, pre_link_args, - pre_link_objects: crt_objects::pre_mingw(), - post_link_objects: crt_objects::post_mingw(), pre_link_objects_self_contained: crt_objects::pre_mingw_self_contained(), - post_link_objects_self_contained: crt_objects::post_mingw_self_contained(), link_self_contained: LinkSelfContainedDefault::InferredForMingw, late_link_args, late_link_args_dynamic, diff --git a/compiler/rustc_target/src/spec/crt_objects.rs b/compiler/rustc_target/src/spec/crt_objects.rs index e3b6430a463..2d84e78f255 100644 --- a/compiler/rustc_target/src/spec/crt_objects.rs +++ b/compiler/rustc_target/src/spec/crt_objects.rs @@ -86,6 +86,17 @@ pub(super) fn post_musl_self_contained() -> CrtObjects { pub(super) fn pre_mingw_self_contained() -> CrtObjects { new(&[ + (LinkOutputKind::DynamicNoPicExe, &["crt2.o"]), + (LinkOutputKind::DynamicPicExe, &["crt2.o"]), + (LinkOutputKind::StaticNoPicExe, &["crt2.o"]), + (LinkOutputKind::StaticPicExe, &["crt2.o"]), + (LinkOutputKind::DynamicDylib, &["dllcrt2.o"]), + (LinkOutputKind::StaticDylib, &["dllcrt2.o"]), + ]) +} + +pub(super) fn pre_i686_mingw_self_contained() -> CrtObjects { + new(&[ (LinkOutputKind::DynamicNoPicExe, &["crt2.o", "rsbegin.o"]), (LinkOutputKind::DynamicPicExe, &["crt2.o", "rsbegin.o"]), (LinkOutputKind::StaticNoPicExe, &["crt2.o", "rsbegin.o"]), @@ -95,15 +106,15 @@ pub(super) fn pre_mingw_self_contained() -> CrtObjects { ]) } -pub(super) fn post_mingw_self_contained() -> CrtObjects { +pub(super) fn post_i686_mingw_self_contained() -> CrtObjects { all("rsend.o") } -pub(super) fn pre_mingw() -> CrtObjects { +pub(super) fn pre_i686_mingw() -> CrtObjects { all("rsbegin.o") } -pub(super) fn post_mingw() -> CrtObjects { +pub(super) fn post_i686_mingw() -> CrtObjects { all("rsend.o") } diff --git a/compiler/rustc_target/src/spec/targets/armebv7r_none_eabi.rs b/compiler/rustc_target/src/spec/targets/armebv7r_none_eabi.rs index d227d63c4a3..0ae7cd7a377 100644 --- a/compiler/rustc_target/src/spec/targets/armebv7r_none_eabi.rs +++ b/compiler/rustc_target/src/spec/targets/armebv7r_none_eabi.rs @@ -12,7 +12,7 @@ pub(crate) fn target() -> Target { llvm_target: "armebv7r-none-eabi".into(), metadata: TargetMetadata { description: Some("Bare Armv7-R, Big Endian".into()), - tier: Some(2), + tier: Some(3), host_tools: Some(false), std: Some(false), }, diff --git a/compiler/rustc_target/src/spec/targets/armebv7r_none_eabihf.rs b/compiler/rustc_target/src/spec/targets/armebv7r_none_eabihf.rs index c373afb914e..71ffd8baed5 100644 --- a/compiler/rustc_target/src/spec/targets/armebv7r_none_eabihf.rs +++ b/compiler/rustc_target/src/spec/targets/armebv7r_none_eabihf.rs @@ -12,7 +12,7 @@ pub(crate) fn target() -> Target { llvm_target: "armebv7r-none-eabihf".into(), metadata: TargetMetadata { description: Some("Bare Armv7-R, Big Endian, hardfloat".into()), - tier: Some(2), + tier: Some(3), host_tools: Some(false), std: Some(false), }, diff --git a/compiler/rustc_target/src/spec/targets/armv7a_vex_v5.rs b/compiler/rustc_target/src/spec/targets/armv7a_vex_v5.rs index e78f7839974..06dd2629775 100644 --- a/compiler/rustc_target/src/spec/targets/armv7a_vex_v5.rs +++ b/compiler/rustc_target/src/spec/targets/armv7a_vex_v5.rs @@ -34,7 +34,7 @@ pub(crate) fn target() -> Target { description: Some("ARMv7-A Cortex-A9 VEX V5 Brain".into()), tier: Some(3), host_tools: Some(false), - std: Some(false), + std: Some(true), }, pointer_width: 32, data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), diff --git a/compiler/rustc_target/src/spec/targets/i686_pc_windows_gnu.rs b/compiler/rustc_target/src/spec/targets/i686_pc_windows_gnu.rs index e775c8fc524..a0d403bd05e 100644 --- a/compiler/rustc_target/src/spec/targets/i686_pc_windows_gnu.rs +++ b/compiler/rustc_target/src/spec/targets/i686_pc_windows_gnu.rs @@ -1,4 +1,6 @@ -use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, RustcAbi, Target, TargetMetadata, base}; +use crate::spec::{ + Cc, FramePointer, LinkerFlavor, Lld, RustcAbi, Target, TargetMetadata, base, crt_objects, +}; pub(crate) fn target() -> Target { let mut base = base::windows_gnu::opts(); @@ -15,6 +17,10 @@ pub(crate) fn target() -> Target { &["-m", "i386pe", "--large-address-aware"], ); base.add_pre_link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &["-Wl,--large-address-aware"]); + base.pre_link_objects = crt_objects::pre_i686_mingw(); + base.post_link_objects = crt_objects::post_i686_mingw(); + base.pre_link_objects_self_contained = crt_objects::pre_i686_mingw_self_contained(); + base.post_link_objects_self_contained = crt_objects::post_i686_mingw_self_contained(); Target { llvm_target: "i686-pc-windows-gnu".into(), diff --git a/compiler/rustc_trait_selection/src/infer.rs b/compiler/rustc_trait_selection/src/infer.rs index 4c50c44b841..cd076d1cb69 100644 --- a/compiler/rustc_trait_selection/src/infer.rs +++ b/compiler/rustc_trait_selection/src/infer.rs @@ -9,7 +9,7 @@ use rustc_middle::infer::canonical::{ Canonical, CanonicalQueryInput, CanonicalQueryResponse, QueryResponse, }; use rustc_middle::traits::query::NoSolution; -use rustc_middle::ty::{self, GenericArg, Ty, TyCtxt, TypeFoldable, TypeVisitableExt, Upcast}; +use rustc_middle::ty::{self, GenericArg, Ty, TyCtxt, TypeFoldable, Upcast}; use rustc_span::DUMMY_SP; use tracing::instrument; @@ -31,19 +31,7 @@ impl<'tcx> InferCtxt<'tcx> { fn type_is_copy_modulo_regions(&self, param_env: ty::ParamEnv<'tcx>, ty: Ty<'tcx>) -> bool { let ty = self.resolve_vars_if_possible(ty); - - // FIXME(#132279): This should be removed as it causes us to incorrectly - // handle opaques in their defining scope, and stalled coroutines. - if !self.next_trait_solver() && !(param_env, ty).has_infer() && !ty.has_coroutines() { - return self.tcx.type_is_copy_modulo_regions(self.typing_env(param_env), ty); - } - let copy_def_id = self.tcx.require_lang_item(LangItem::Copy, DUMMY_SP); - - // This can get called from typeck (by euv), and `moves_by_default` - // rightly refuses to work with inference variables, but - // moves_by_default has a cache, which we want to use in other - // cases. traits::type_known_to_meet_bound_modulo_regions(self, param_env, ty, copy_def_id) } diff --git a/compiler/rustc_transmute/src/layout/tree.rs b/compiler/rustc_transmute/src/layout/tree.rs index d7ea26a2ab1..a02e8ecf613 100644 --- a/compiler/rustc_transmute/src/layout/tree.rs +++ b/compiler/rustc_transmute/src/layout/tree.rs @@ -279,6 +279,7 @@ pub(crate) mod rustc { LayoutError::Unknown(..) | LayoutError::ReferencesError(..) | LayoutError::TooGeneric(..) + | LayoutError::InvalidSimd { .. } | LayoutError::NormalizationFailure(..) => Self::UnknownLayout, LayoutError::SizeOverflow(..) => Self::SizeOverflow, LayoutError::Cycle(err) => Self::TypeError(*err), diff --git a/compiler/rustc_ty_utils/src/errors.rs b/compiler/rustc_ty_utils/src/errors.rs index 0298e7e0e95..f92c405242c 100644 --- a/compiler/rustc_ty_utils/src/errors.rs +++ b/compiler/rustc_ty_utils/src/errors.rs @@ -79,19 +79,6 @@ pub(crate) struct UnexpectedFnPtrAssociatedItem { } #[derive(Diagnostic)] -#[diag(ty_utils_zero_length_simd_type)] -pub(crate) struct ZeroLengthSimdType<'tcx> { - pub ty: Ty<'tcx>, -} - -#[derive(Diagnostic)] -#[diag(ty_utils_oversized_simd_type)] -pub(crate) struct OversizedSimdType<'tcx> { - pub ty: Ty<'tcx>, - pub max_lanes: u64, -} - -#[derive(Diagnostic)] #[diag(ty_utils_non_primitive_simd_type)] pub(crate) struct NonPrimitiveSimdType<'tcx> { pub ty: Ty<'tcx>, diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index c4cb43011ad..f59bc2117d5 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -7,12 +7,14 @@ use rustc_abi::{ VariantIdx, Variants, WrappingRange, }; use rustc_hashes::Hash64; +use rustc_hir::attrs::AttributeKind; +use rustc_hir::find_attr; use rustc_index::IndexVec; use rustc_middle::bug; use rustc_middle::query::Providers; use rustc_middle::traits::ObligationCause; use rustc_middle::ty::layout::{ - FloatExt, HasTyCtxt, IntegerExt, LayoutCx, LayoutError, LayoutOf, TyAndLayout, + FloatExt, HasTyCtxt, IntegerExt, LayoutCx, LayoutError, LayoutOf, SimdLayoutError, TyAndLayout, }; use rustc_middle::ty::print::with_no_trimmed_paths; use rustc_middle::ty::{ @@ -23,7 +25,7 @@ use rustc_span::{Symbol, sym}; use tracing::{debug, instrument}; use {rustc_abi as abi, rustc_hir as hir}; -use crate::errors::{NonPrimitiveSimdType, OversizedSimdType, ZeroLengthSimdType}; +use crate::errors::NonPrimitiveSimdType; mod invariant; @@ -121,11 +123,11 @@ fn map_error<'tcx>( } LayoutCalculatorError::ZeroLengthSimdType => { // Can't be caught in typeck if the array length is generic. - cx.tcx().dcx().emit_fatal(ZeroLengthSimdType { ty }) + LayoutError::InvalidSimd { ty, kind: SimdLayoutError::ZeroLength } } LayoutCalculatorError::OversizedSimdType { max_lanes } => { // Can't be caught in typeck if the array length is generic. - cx.tcx().dcx().emit_fatal(OversizedSimdType { ty, max_lanes }) + LayoutError::InvalidSimd { ty, kind: SimdLayoutError::TooManyLanes(max_lanes) } } LayoutCalculatorError::NonPrimitiveSimdType(field) => { // This error isn't caught in typeck, e.g., if @@ -563,6 +565,22 @@ fn layout_of_uncached<'tcx>( let e_ly = cx.layout_of(e_ty)?; + // Check for the rustc_simd_monomorphize_lane_limit attribute and check the lane limit + if let Some(limit) = find_attr!( + tcx.get_all_attrs(def.did()), + AttributeKind::RustcSimdMonomorphizeLaneLimit(limit) => limit + ) { + if !limit.value_within_limit(e_len as usize) { + return Err(map_error( + &cx, + ty, + rustc_abi::LayoutCalculatorError::OversizedSimdType { + max_lanes: limit.0 as u64, + }, + )); + } + } + map_layout(cx.calc.simd_type(e_ly, e_len, def.repr().packed()))? } diff --git a/library/Cargo.lock b/library/Cargo.lock index e4b3839847b..47fbf5169f4 100644 --- a/library/Cargo.lock +++ b/library/Cargo.lock @@ -326,6 +326,7 @@ dependencies = [ "rustc-demangle", "std_detect", "unwind", + "vex-sdk", "wasi 0.11.1+wasi-snapshot-preview1", "wasi 0.14.4+wasi-0.2.4", "windows-targets 0.0.0", @@ -380,6 +381,15 @@ dependencies = [ ] [[package]] +name = "vex-sdk" +version = "0.27.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "89f74fce61d7a7ba1589da9634c6305a72befb7cc9150c1f872d87d8060f32b9" +dependencies = [ + "rustc-std-workspace-core", +] + +[[package]] name = "wasi" version = "0.11.1+wasi-snapshot-preview1" source = "registry+https://github.com/rust-lang/crates.io-index" diff --git a/library/alloc/src/collections/btree/map.rs b/library/alloc/src/collections/btree/map.rs index cebd25c6039..e3b53b2fe29 100644 --- a/library/alloc/src/collections/btree/map.rs +++ b/library/alloc/src/collections/btree/map.rs @@ -194,6 +194,9 @@ pub struct BTreeMap< root: Option<Root<K, V>>, length: usize, /// `ManuallyDrop` to control drop order (needs to be dropped after all the nodes). + // Although some of the accessory types store a copy of the allocator, the nodes do not. + // Because allocations will remain live as long as any copy (like this one) of the allocator + // is live, it's unnecessary to store the allocator in each node. pub(super) alloc: ManuallyDrop<A>, // For dropck; the `Box` avoids making the `Unpin` impl more strict than before _marker: PhantomData<crate::boxed::Box<(K, V), A>>, diff --git a/library/alloc/src/collections/btree/node.rs b/library/alloc/src/collections/btree/node.rs index 2b8103c8b77..a87259e7c58 100644 --- a/library/alloc/src/collections/btree/node.rs +++ b/library/alloc/src/collections/btree/node.rs @@ -225,7 +225,11 @@ impl<K, V> NodeRef<marker::Owned, K, V, marker::Leaf> { } fn from_new_leaf<A: Allocator + Clone>(leaf: Box<LeafNode<K, V>, A>) -> Self { - NodeRef { height: 0, node: NonNull::from(Box::leak(leaf)), _marker: PhantomData } + // The allocator must be dropped, not leaked. See also `BTreeMap::alloc`. + let (leaf, _alloc) = Box::into_raw_with_allocator(leaf); + // SAFETY: the node was just allocated. + let node = unsafe { NonNull::new_unchecked(leaf) }; + NodeRef { height: 0, node, _marker: PhantomData } } } @@ -243,7 +247,11 @@ impl<K, V> NodeRef<marker::Owned, K, V, marker::Internal> { height: usize, ) -> Self { debug_assert!(height > 0); - let node = NonNull::from(Box::leak(internal)).cast(); + // The allocator must be dropped, not leaked. See also `BTreeMap::alloc`. + let (internal, _alloc) = Box::into_raw_with_allocator(internal); + // SAFETY: the node was just allocated. + let internal = unsafe { NonNull::new_unchecked(internal) }; + let node = internal.cast(); let mut this = NodeRef { height, node, _marker: PhantomData }; this.borrow_mut().correct_all_childrens_parent_links(); this diff --git a/library/alloc/src/raw_vec/mod.rs b/library/alloc/src/raw_vec/mod.rs index b7c153b825d..1d4a1f592a9 100644 --- a/library/alloc/src/raw_vec/mod.rs +++ b/library/alloc/src/raw_vec/mod.rs @@ -177,6 +177,8 @@ impl<T, A: Allocator> RawVec<T, A> { /// the returned `RawVec`. #[inline] pub(crate) const fn new_in(alloc: A) -> Self { + // Check assumption made in `current_memory` + const { assert!(T::LAYOUT.size() % T::LAYOUT.align() == 0) }; Self { inner: RawVecInner::new_in(alloc, Alignment::of::<T>()), _marker: PhantomData } } @@ -328,7 +330,8 @@ impl<T, A: Allocator> RawVec<T, A> { #[inline] #[track_caller] pub(crate) fn reserve(&mut self, len: usize, additional: usize) { - self.inner.reserve(len, additional, T::LAYOUT) + // SAFETY: All calls on self.inner pass T::LAYOUT as the elem_layout + unsafe { self.inner.reserve(len, additional, T::LAYOUT) } } /// A specialized version of `self.reserve(len, 1)` which requires the @@ -337,7 +340,8 @@ impl<T, A: Allocator> RawVec<T, A> { #[inline(never)] #[track_caller] pub(crate) fn grow_one(&mut self) { - self.inner.grow_one(T::LAYOUT) + // SAFETY: All calls on self.inner pass T::LAYOUT as the elem_layout + unsafe { self.inner.grow_one(T::LAYOUT) } } /// The same as `reserve`, but returns on errors instead of panicking or aborting. @@ -346,7 +350,8 @@ impl<T, A: Allocator> RawVec<T, A> { len: usize, additional: usize, ) -> Result<(), TryReserveError> { - self.inner.try_reserve(len, additional, T::LAYOUT) + // SAFETY: All calls on self.inner pass T::LAYOUT as the elem_layout + unsafe { self.inner.try_reserve(len, additional, T::LAYOUT) } } /// Ensures that the buffer contains at least enough space to hold `len + @@ -369,7 +374,8 @@ impl<T, A: Allocator> RawVec<T, A> { #[cfg(not(no_global_oom_handling))] #[track_caller] pub(crate) fn reserve_exact(&mut self, len: usize, additional: usize) { - self.inner.reserve_exact(len, additional, T::LAYOUT) + // SAFETY: All calls on self.inner pass T::LAYOUT as the elem_layout + unsafe { self.inner.reserve_exact(len, additional, T::LAYOUT) } } /// The same as `reserve_exact`, but returns on errors instead of panicking or aborting. @@ -378,7 +384,8 @@ impl<T, A: Allocator> RawVec<T, A> { len: usize, additional: usize, ) -> Result<(), TryReserveError> { - self.inner.try_reserve_exact(len, additional, T::LAYOUT) + // SAFETY: All calls on self.inner pass T::LAYOUT as the elem_layout + unsafe { self.inner.try_reserve_exact(len, additional, T::LAYOUT) } } /// Shrinks the buffer down to the specified capacity. If the given amount @@ -395,7 +402,8 @@ impl<T, A: Allocator> RawVec<T, A> { #[track_caller] #[inline] pub(crate) fn shrink_to_fit(&mut self, cap: usize) { - self.inner.shrink_to_fit(cap, T::LAYOUT) + // SAFETY: All calls on self.inner pass T::LAYOUT as the elem_layout + unsafe { self.inner.shrink_to_fit(cap, T::LAYOUT) } } } @@ -518,8 +526,12 @@ impl<A: Allocator> RawVecInner<A> { &self.alloc } + /// # Safety + /// - `elem_layout` must be valid for `self`, i.e. it must be the same `elem_layout` used to + /// initially construct `self` + /// - `elem_layout`'s size must be a multiple of its alignment #[inline] - fn current_memory(&self, elem_layout: Layout) -> Option<(NonNull<u8>, Layout)> { + unsafe fn current_memory(&self, elem_layout: Layout) -> Option<(NonNull<u8>, Layout)> { if elem_layout.size() == 0 || self.cap.as_inner() == 0 { None } else { @@ -535,48 +547,67 @@ impl<A: Allocator> RawVecInner<A> { } } + /// # Safety + /// - `elem_layout` must be valid for `self`, i.e. it must be the same `elem_layout` used to + /// initially construct `self` + /// - `elem_layout`'s size must be a multiple of its alignment #[cfg(not(no_global_oom_handling))] #[inline] #[track_caller] - fn reserve(&mut self, len: usize, additional: usize, elem_layout: Layout) { + unsafe fn reserve(&mut self, len: usize, additional: usize, elem_layout: Layout) { // Callers expect this function to be very cheap when there is already sufficient capacity. // Therefore, we move all the resizing and error-handling logic from grow_amortized and // handle_reserve behind a call, while making sure that this function is likely to be // inlined as just a comparison and a call if the comparison fails. #[cold] - fn do_reserve_and_handle<A: Allocator>( + unsafe fn do_reserve_and_handle<A: Allocator>( slf: &mut RawVecInner<A>, len: usize, additional: usize, elem_layout: Layout, ) { - if let Err(err) = slf.grow_amortized(len, additional, elem_layout) { + // SAFETY: Precondition passed to caller + if let Err(err) = unsafe { slf.grow_amortized(len, additional, elem_layout) } { handle_error(err); } } if self.needs_to_grow(len, additional, elem_layout) { - do_reserve_and_handle(self, len, additional, elem_layout); + unsafe { + do_reserve_and_handle(self, len, additional, elem_layout); + } } } + /// # Safety + /// - `elem_layout` must be valid for `self`, i.e. it must be the same `elem_layout` used to + /// initially construct `self` + /// - `elem_layout`'s size must be a multiple of its alignment #[cfg(not(no_global_oom_handling))] #[inline] #[track_caller] - fn grow_one(&mut self, elem_layout: Layout) { - if let Err(err) = self.grow_amortized(self.cap.as_inner(), 1, elem_layout) { + unsafe fn grow_one(&mut self, elem_layout: Layout) { + // SAFETY: Precondition passed to caller + if let Err(err) = unsafe { self.grow_amortized(self.cap.as_inner(), 1, elem_layout) } { handle_error(err); } } - fn try_reserve( + /// # Safety + /// - `elem_layout` must be valid for `self`, i.e. it must be the same `elem_layout` used to + /// initially construct `self` + /// - `elem_layout`'s size must be a multiple of its alignment + unsafe fn try_reserve( &mut self, len: usize, additional: usize, elem_layout: Layout, ) -> Result<(), TryReserveError> { if self.needs_to_grow(len, additional, elem_layout) { - self.grow_amortized(len, additional, elem_layout)?; + // SAFETY: Precondition passed to caller + unsafe { + self.grow_amortized(len, additional, elem_layout)?; + } } unsafe { // Inform the optimizer that the reservation has succeeded or wasn't needed @@ -585,22 +616,34 @@ impl<A: Allocator> RawVecInner<A> { Ok(()) } + /// # Safety + /// - `elem_layout` must be valid for `self`, i.e. it must be the same `elem_layout` used to + /// initially construct `self` + /// - `elem_layout`'s size must be a multiple of its alignment #[cfg(not(no_global_oom_handling))] #[track_caller] - fn reserve_exact(&mut self, len: usize, additional: usize, elem_layout: Layout) { - if let Err(err) = self.try_reserve_exact(len, additional, elem_layout) { + unsafe fn reserve_exact(&mut self, len: usize, additional: usize, elem_layout: Layout) { + // SAFETY: Precondition passed to caller + if let Err(err) = unsafe { self.try_reserve_exact(len, additional, elem_layout) } { handle_error(err); } } - fn try_reserve_exact( + /// # Safety + /// - `elem_layout` must be valid for `self`, i.e. it must be the same `elem_layout` used to + /// initially construct `self` + /// - `elem_layout`'s size must be a multiple of its alignment + unsafe fn try_reserve_exact( &mut self, len: usize, additional: usize, elem_layout: Layout, ) -> Result<(), TryReserveError> { if self.needs_to_grow(len, additional, elem_layout) { - self.grow_exact(len, additional, elem_layout)?; + // SAFETY: Precondition passed to caller + unsafe { + self.grow_exact(len, additional, elem_layout)?; + } } unsafe { // Inform the optimizer that the reservation has succeeded or wasn't needed @@ -609,11 +652,16 @@ impl<A: Allocator> RawVecInner<A> { Ok(()) } + /// # Safety + /// - `elem_layout` must be valid for `self`, i.e. it must be the same `elem_layout` used to + /// initially construct `self` + /// - `elem_layout`'s size must be a multiple of its alignment + /// - `cap` must be less than or equal to `self.capacity(elem_layout.size())` #[cfg(not(no_global_oom_handling))] #[inline] #[track_caller] - fn shrink_to_fit(&mut self, cap: usize, elem_layout: Layout) { - if let Err(err) = self.shrink(cap, elem_layout) { + unsafe fn shrink_to_fit(&mut self, cap: usize, elem_layout: Layout) { + if let Err(err) = unsafe { self.shrink(cap, elem_layout) } { handle_error(err); } } @@ -632,7 +680,13 @@ impl<A: Allocator> RawVecInner<A> { self.cap = unsafe { Cap::new_unchecked(cap) }; } - fn grow_amortized( + /// # Safety + /// - `elem_layout` must be valid for `self`, i.e. it must be the same `elem_layout` used to + /// initially construct `self` + /// - `elem_layout`'s size must be a multiple of its alignment + /// - The sum of `len` and `additional` must be greater than or equal to + /// `self.capacity(elem_layout.size())` + unsafe fn grow_amortized( &mut self, len: usize, additional: usize, @@ -657,14 +711,25 @@ impl<A: Allocator> RawVecInner<A> { let new_layout = layout_array(cap, elem_layout)?; - let ptr = finish_grow(new_layout, self.current_memory(elem_layout), &mut self.alloc)?; - // SAFETY: layout_array would have resulted in a capacity overflow if we tried to allocate more than `isize::MAX` items + // SAFETY: + // - For the `current_memory` call: Precondition passed to caller + // - For the `finish_grow` call: Precondition passed to caller + // + `current_memory` does the right thing + let ptr = + unsafe { finish_grow(new_layout, self.current_memory(elem_layout), &mut self.alloc)? }; + // SAFETY: layout_array would have resulted in a capacity overflow if we tried to allocate more than `isize::MAX` items unsafe { self.set_ptr_and_cap(ptr, cap) }; Ok(()) } - fn grow_exact( + /// # Safety + /// - `elem_layout` must be valid for `self`, i.e. it must be the same `elem_layout` used to + /// initially construct `self` + /// - `elem_layout`'s size must be a multiple of its alignment + /// - The sum of `len` and `additional` must be greater than or equal to + /// `self.capacity(elem_layout.size())` + unsafe fn grow_exact( &mut self, len: usize, additional: usize, @@ -679,7 +744,12 @@ impl<A: Allocator> RawVecInner<A> { let cap = len.checked_add(additional).ok_or(CapacityOverflow)?; let new_layout = layout_array(cap, elem_layout)?; - let ptr = finish_grow(new_layout, self.current_memory(elem_layout), &mut self.alloc)?; + // SAFETY: + // - For the `current_memory` call: Precondition passed to caller + // - For the `finish_grow` call: Precondition passed to caller + // + `current_memory` does the right thing + let ptr = + unsafe { finish_grow(new_layout, self.current_memory(elem_layout), &mut self.alloc)? }; // SAFETY: layout_array would have resulted in a capacity overflow if we tried to allocate more than `isize::MAX` items unsafe { self.set_ptr_and_cap(ptr, cap); @@ -687,9 +757,14 @@ impl<A: Allocator> RawVecInner<A> { Ok(()) } + /// # Safety + /// - `elem_layout` must be valid for `self`, i.e. it must be the same `elem_layout` used to + /// initially construct `self` + /// - `elem_layout`'s size must be a multiple of its alignment + /// - `cap` must be less than or equal to `self.capacity(elem_layout.size())` #[cfg(not(no_global_oom_handling))] #[inline] - fn shrink(&mut self, cap: usize, elem_layout: Layout) -> Result<(), TryReserveError> { + unsafe fn shrink(&mut self, cap: usize, elem_layout: Layout) -> Result<(), TryReserveError> { assert!(cap <= self.capacity(elem_layout.size()), "Tried to shrink to a larger capacity"); // SAFETY: Just checked this isn't trying to grow unsafe { self.shrink_unchecked(cap, elem_layout) } @@ -711,8 +786,12 @@ impl<A: Allocator> RawVecInner<A> { cap: usize, elem_layout: Layout, ) -> Result<(), TryReserveError> { - let (ptr, layout) = - if let Some(mem) = self.current_memory(elem_layout) { mem } else { return Ok(()) }; + // SAFETY: Precondition passed to caller + let (ptr, layout) = if let Some(mem) = unsafe { self.current_memory(elem_layout) } { + mem + } else { + return Ok(()); + }; // If shrinking to 0, deallocate the buffer. We don't reach this point // for the T::IS_ZST case since current_memory() will have returned @@ -748,7 +827,8 @@ impl<A: Allocator> RawVecInner<A> { /// Ideally this function would take `self` by move, but it cannot because it exists to be /// called from a `Drop` impl. unsafe fn deallocate(&mut self, elem_layout: Layout) { - if let Some((ptr, layout)) = self.current_memory(elem_layout) { + // SAFETY: Precondition passed to caller + if let Some((ptr, layout)) = unsafe { self.current_memory(elem_layout) } { unsafe { self.alloc.deallocate(ptr, layout); } @@ -756,10 +836,17 @@ impl<A: Allocator> RawVecInner<A> { } } +/// # Safety +/// If `current_memory` matches `Some((ptr, old_layout))`: +/// - `ptr` must denote a block of memory *currently allocated* via `alloc` +/// - `old_layout` must *fit* that block of memory +/// - `new_layout` must have the same alignment as `old_layout` +/// - `new_layout.size()` must be greater than or equal to `old_layout.size()` +/// If `current_memory` is `None`, this function is safe. // not marked inline(never) since we want optimizers to be able to observe the specifics of this // function, see tests/codegen-llvm/vec-reserve-extend.rs. #[cold] -fn finish_grow<A>( +unsafe fn finish_grow<A>( new_layout: Layout, current_memory: Option<(NonNull<u8>, Layout)>, alloc: &mut A, diff --git a/library/alloc/src/raw_vec/tests.rs b/library/alloc/src/raw_vec/tests.rs index 700fa922739..15f48c03dc5 100644 --- a/library/alloc/src/raw_vec/tests.rs +++ b/library/alloc/src/raw_vec/tests.rs @@ -85,7 +85,7 @@ struct ZST; fn zst_sanity<T>(v: &RawVec<T>) { assert_eq!(v.capacity(), usize::MAX); assert_eq!(v.ptr(), core::ptr::Unique::<T>::dangling().as_ptr()); - assert_eq!(v.inner.current_memory(T::LAYOUT), None); + assert_eq!(unsafe { v.inner.current_memory(T::LAYOUT) }, None); } #[test] @@ -126,12 +126,12 @@ fn zst() { assert_eq!(v.try_reserve_exact(101, usize::MAX - 100), cap_err); zst_sanity(&v); - assert_eq!(v.inner.grow_amortized(100, usize::MAX - 100, ZST::LAYOUT), cap_err); - assert_eq!(v.inner.grow_amortized(101, usize::MAX - 100, ZST::LAYOUT), cap_err); + assert_eq!(unsafe { v.inner.grow_amortized(100, usize::MAX - 100, ZST::LAYOUT) }, cap_err); + assert_eq!(unsafe { v.inner.grow_amortized(101, usize::MAX - 100, ZST::LAYOUT) }, cap_err); zst_sanity(&v); - assert_eq!(v.inner.grow_exact(100, usize::MAX - 100, ZST::LAYOUT), cap_err); - assert_eq!(v.inner.grow_exact(101, usize::MAX - 100, ZST::LAYOUT), cap_err); + assert_eq!(unsafe { v.inner.grow_exact(100, usize::MAX - 100, ZST::LAYOUT) }, cap_err); + assert_eq!(unsafe { v.inner.grow_exact(101, usize::MAX - 100, ZST::LAYOUT) }, cap_err); zst_sanity(&v); } diff --git a/library/alloc/src/vec/extract_if.rs b/library/alloc/src/vec/extract_if.rs index a456d3d9e60..cb9e14f554d 100644 --- a/library/alloc/src/vec/extract_if.rs +++ b/library/alloc/src/vec/extract_if.rs @@ -64,27 +64,37 @@ where type Item = T; fn next(&mut self) -> Option<T> { - unsafe { - while self.idx < self.end { - let i = self.idx; - let v = slice::from_raw_parts_mut(self.vec.as_mut_ptr(), self.old_len); - let drained = (self.pred)(&mut v[i]); - // Update the index *after* the predicate is called. If the index - // is updated prior and the predicate panics, the element at this - // index would be leaked. - self.idx += 1; - if drained { - self.del += 1; - return Some(ptr::read(&v[i])); - } else if self.del > 0 { - let del = self.del; - let src: *const T = &v[i]; - let dst: *mut T = &mut v[i - del]; - ptr::copy_nonoverlapping(src, dst, 1); + while self.idx < self.end { + let i = self.idx; + // SAFETY: + // We know that `i < self.end` from the if guard and that `self.end <= self.old_len` from + // the validity of `Self`. Therefore `i` points to an element within `vec`. + // + // Additionally, the i-th element is valid because each element is visited at most once + // and it is the first time we access vec[i]. + // + // Note: we can't use `vec.get_unchecked_mut(i)` here since the precondition for that + // function is that i < vec.len(), but we've set vec's length to zero. + let cur = unsafe { &mut *self.vec.as_mut_ptr().add(i) }; + let drained = (self.pred)(cur); + // Update the index *after* the predicate is called. If the index + // is updated prior and the predicate panics, the element at this + // index would be leaked. + self.idx += 1; + if drained { + self.del += 1; + // SAFETY: We never touch this element again after returning it. + return Some(unsafe { ptr::read(cur) }); + } else if self.del > 0 { + // SAFETY: `self.del` > 0, so the hole slot must not overlap with current element. + // We use copy for move, and never touch this element again. + unsafe { + let hole_slot = self.vec.as_mut_ptr().add(i - self.del); + ptr::copy_nonoverlapping(cur, hole_slot, 1); } } - None } + None } fn size_hint(&self) -> (usize, Option<usize>) { @@ -95,14 +105,18 @@ where #[stable(feature = "extract_if", since = "1.87.0")] impl<T, F, A: Allocator> Drop for ExtractIf<'_, T, F, A> { fn drop(&mut self) { - unsafe { - if self.idx < self.old_len && self.del > 0 { - let ptr = self.vec.as_mut_ptr(); - let src = ptr.add(self.idx); - let dst = src.sub(self.del); - let tail_len = self.old_len - self.idx; - src.copy_to(dst, tail_len); + if self.del > 0 { + // SAFETY: Trailing unchecked items must be valid since we never touch them. + unsafe { + ptr::copy( + self.vec.as_ptr().add(self.idx), + self.vec.as_mut_ptr().add(self.idx - self.del), + self.old_len - self.idx, + ); } + } + // SAFETY: After filling holes, all items are in contiguous memory. + unsafe { self.vec.set_len(self.old_len - self.del); } } diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs index ebdb86f98a8..694b7b2df08 100644 --- a/library/alloc/src/vec/mod.rs +++ b/library/alloc/src/vec/mod.rs @@ -2173,9 +2173,37 @@ impl<T, A: Allocator> Vec<T, A> { panic!("removal index (is {index}) should be < len (is {len})"); } + match self.try_remove(index) { + Some(elem) => elem, + None => assert_failed(index, self.len()), + } + } + + /// Remove and return the element at position `index` within the vector, + /// shifting all elements after it to the left, or [`None`] if it does not + /// exist. + /// + /// Note: Because this shifts over the remaining elements, it has a + /// worst-case performance of *O*(*n*). If you'd like to remove + /// elements from the beginning of the `Vec`, consider using + /// [`VecDeque::pop_front`] instead. + /// + /// [`VecDeque::pop_front`]: crate::collections::VecDeque::pop_front + /// + /// # Examples + /// + /// ``` + /// #![feature(vec_try_remove)] + /// let mut v = vec![1, 2, 3]; + /// assert_eq!(v.try_remove(0), Some(1)); + /// assert_eq!(v.try_remove(2), None); + /// ``` + #[unstable(feature = "vec_try_remove", issue = "146954")] + #[rustc_confusables("delete", "take", "remove")] + pub fn try_remove(&mut self, index: usize) -> Option<T> { let len = self.len(); if index >= len { - assert_failed(index, len); + return None; } unsafe { // infallible @@ -2191,7 +2219,7 @@ impl<T, A: Allocator> Vec<T, A> { ptr::copy(ptr.add(1), ptr, len - index - 1); } self.set_len(len - 1); - ret + Some(ret) } } diff --git a/library/alloctests/tests/lib.rs b/library/alloctests/tests/lib.rs index 8c3ce156f3c..49fb21ef5f3 100644 --- a/library/alloctests/tests/lib.rs +++ b/library/alloctests/tests/lib.rs @@ -41,12 +41,12 @@ #![feature(unique_rc_arc)] #![feature(macro_metavar_expr_concat)] #![feature(vec_peek_mut)] +#![feature(vec_try_remove)] #![allow(internal_features)] #![deny(fuzzy_provenance_casts)] #![deny(unsafe_op_in_unsafe_fn)] extern crate alloc; -extern crate test; use std::hash::{DefaultHasher, Hash, Hasher}; diff --git a/library/alloctests/tests/vec.rs b/library/alloctests/tests/vec.rs index 33a34daccbf..ea334ab0f14 100644 --- a/library/alloctests/tests/vec.rs +++ b/library/alloctests/tests/vec.rs @@ -631,6 +631,21 @@ fn test_swap_remove_empty() { } #[test] +fn test_try_remove() { + let mut vec = vec![1, 2, 3]; + // We are attempting to remove vec[0] which contains 1 + assert_eq!(vec.try_remove(0), Some(1)); + // Now `vec` looks like: [2, 3] + // We will now try to remove vec[2] which does not exist + // This should return `None` + assert_eq!(vec.try_remove(2), None); + + // We will try the same thing with an empty vector + let mut v: Vec<u8> = vec![]; + assert!(v.try_remove(0).is_none()); +} + +#[test] fn test_move_items() { let vec = vec![1, 2, 3]; let mut vec2 = vec![]; diff --git a/library/core/src/intrinsics/mod.rs b/library/core/src/intrinsics/mod.rs index eaf2738d8b7..cef700be9ea 100644 --- a/library/core/src/intrinsics/mod.rs +++ b/library/core/src/intrinsics/mod.rs @@ -1312,28 +1312,28 @@ pub fn log2f128(x: f128) -> f128; /// [`f16::mul_add`](../../std/primitive.f16.html#method.mul_add) #[rustc_intrinsic] #[rustc_nounwind] -pub fn fmaf16(a: f16, b: f16, c: f16) -> f16; +pub const fn fmaf16(a: f16, b: f16, c: f16) -> f16; /// Returns `a * b + c` for `f32` values. /// /// The stabilized version of this intrinsic is /// [`f32::mul_add`](../../std/primitive.f32.html#method.mul_add) #[rustc_intrinsic] #[rustc_nounwind] -pub fn fmaf32(a: f32, b: f32, c: f32) -> f32; +pub const fn fmaf32(a: f32, b: f32, c: f32) -> f32; /// Returns `a * b + c` for `f64` values. /// /// The stabilized version of this intrinsic is /// [`f64::mul_add`](../../std/primitive.f64.html#method.mul_add) #[rustc_intrinsic] #[rustc_nounwind] -pub fn fmaf64(a: f64, b: f64, c: f64) -> f64; +pub const fn fmaf64(a: f64, b: f64, c: f64) -> f64; /// Returns `a * b + c` for `f128` values. /// /// The stabilized version of this intrinsic is /// [`f128::mul_add`](../../std/primitive.f128.html#method.mul_add) #[rustc_intrinsic] #[rustc_nounwind] -pub fn fmaf128(a: f128, b: f128, c: f128) -> f128; +pub const fn fmaf128(a: f128, b: f128, c: f128) -> f128; /// Returns `a * b + c` for `f16` values, non-deterministically executing /// either a fused multiply-add or two operations with rounding of the @@ -1347,7 +1347,7 @@ pub fn fmaf128(a: f128, b: f128, c: f128) -> f128; /// example. #[rustc_intrinsic] #[rustc_nounwind] -pub fn fmuladdf16(a: f16, b: f16, c: f16) -> f16; +pub const fn fmuladdf16(a: f16, b: f16, c: f16) -> f16; /// Returns `a * b + c` for `f32` values, non-deterministically executing /// either a fused multiply-add or two operations with rounding of the /// intermediate result. @@ -1360,7 +1360,7 @@ pub fn fmuladdf16(a: f16, b: f16, c: f16) -> f16; /// example. #[rustc_intrinsic] #[rustc_nounwind] -pub fn fmuladdf32(a: f32, b: f32, c: f32) -> f32; +pub const fn fmuladdf32(a: f32, b: f32, c: f32) -> f32; /// Returns `a * b + c` for `f64` values, non-deterministically executing /// either a fused multiply-add or two operations with rounding of the /// intermediate result. @@ -1373,7 +1373,7 @@ pub fn fmuladdf32(a: f32, b: f32, c: f32) -> f32; /// example. #[rustc_intrinsic] #[rustc_nounwind] -pub fn fmuladdf64(a: f64, b: f64, c: f64) -> f64; +pub const fn fmuladdf64(a: f64, b: f64, c: f64) -> f64; /// Returns `a * b + c` for `f128` values, non-deterministically executing /// either a fused multiply-add or two operations with rounding of the /// intermediate result. @@ -1386,7 +1386,7 @@ pub fn fmuladdf64(a: f64, b: f64, c: f64) -> f64; /// example. #[rustc_intrinsic] #[rustc_nounwind] -pub fn fmuladdf128(a: f128, b: f128, c: f128) -> f128; +pub const fn fmuladdf128(a: f128, b: f128, c: f128) -> f128; /// Returns the largest integer less than or equal to an `f16`. /// diff --git a/library/core/src/num/f128.rs b/library/core/src/num/f128.rs index 3b03cde0372..73ca3fbb142 100644 --- a/library/core/src/num/f128.rs +++ b/library/core/src/num/f128.rs @@ -1659,7 +1659,8 @@ impl f128 { #[doc(alias = "fmaf128", alias = "fusedMultiplyAdd")] #[unstable(feature = "f128", issue = "116909")] #[must_use = "method returns a new number and does not mutate the original value"] - pub fn mul_add(self, a: f128, b: f128) -> f128 { + #[rustc_const_unstable(feature = "const_mul_add", issue = "146724")] + pub const fn mul_add(self, a: f128, b: f128) -> f128 { intrinsics::fmaf128(self, a, b) } diff --git a/library/core/src/num/f16.rs b/library/core/src/num/f16.rs index a027d63005b..a9dbade0e65 100644 --- a/library/core/src/num/f16.rs +++ b/library/core/src/num/f16.rs @@ -1634,7 +1634,8 @@ impl f16 { #[unstable(feature = "f16", issue = "116909")] #[doc(alias = "fmaf16", alias = "fusedMultiplyAdd")] #[must_use = "method returns a new number and does not mutate the original value"] - pub fn mul_add(self, a: f16, b: f16) -> f16 { + #[rustc_const_unstable(feature = "const_mul_add", issue = "146724")] + pub const fn mul_add(self, a: f16, b: f16) -> f16 { intrinsics::fmaf16(self, a, b) } diff --git a/library/core/src/num/f32.rs b/library/core/src/num/f32.rs index bfc091c54b2..53474cd3e90 100644 --- a/library/core/src/num/f32.rs +++ b/library/core/src/num/f32.rs @@ -1798,7 +1798,8 @@ pub mod math { #[doc(alias = "fmaf", alias = "fusedMultiplyAdd")] #[must_use = "method returns a new number and does not mutate the original value"] #[unstable(feature = "core_float_math", issue = "137578")] - pub fn mul_add(x: f32, y: f32, z: f32) -> f32 { + #[rustc_const_unstable(feature = "const_mul_add", issue = "146724")] + pub const fn mul_add(x: f32, y: f32, z: f32) -> f32 { intrinsics::fmaf32(x, y, z) } diff --git a/library/core/src/num/f64.rs b/library/core/src/num/f64.rs index 21cd77d8014..78113a60bbc 100644 --- a/library/core/src/num/f64.rs +++ b/library/core/src/num/f64.rs @@ -1796,7 +1796,8 @@ pub mod math { #[doc(alias = "fma", alias = "fusedMultiplyAdd")] #[unstable(feature = "core_float_math", issue = "137578")] #[must_use = "method returns a new number and does not mutate the original value"] - pub fn mul_add(x: f64, a: f64, b: f64) -> f64 { + #[rustc_const_unstable(feature = "const_mul_add", issue = "146724")] + pub const fn mul_add(x: f64, a: f64, b: f64) -> f64 { intrinsics::fmaf64(x, a, b) } diff --git a/library/core/src/num/nonzero.rs b/library/core/src/num/nonzero.rs index 1b7c28bb95a..d9184e3c9c2 100644 --- a/library/core/src/num/nonzero.rs +++ b/library/core/src/num/nonzero.rs @@ -548,6 +548,18 @@ macro_rules! nonzero_integer { #[doc = concat!("assert_eq!(align_of::<", stringify!($Ty), ">(), align_of::<Option<", stringify!($Ty), ">>());")] /// ``` /// + /// # Compile-time creation + /// + /// Since both [`Option::unwrap()`] and [`Option::expect()`] are `const`, it is possible to + /// define a new + #[doc = concat!("`", stringify!($Ty), "`")] + /// at compile time via: + /// ``` + #[doc = concat!("use std::num::", stringify!($Ty), ";")] + /// + #[doc = concat!("const TEN: ", stringify!($Ty), " = ", stringify!($Ty) , r#"::new(10).expect("ten is non-zero");"#)] + /// ``` + /// /// [null pointer optimization]: crate::option#representation #[$stability] pub type $Ty = NonZero<$Int>; diff --git a/library/coretests/tests/floats/f128.rs b/library/coretests/tests/floats/f128.rs index d31eba863f5..62278bf96c3 100644 --- a/library/coretests/tests/floats/f128.rs +++ b/library/coretests/tests/floats/f128.rs @@ -21,24 +21,6 @@ const TOL_PRECISE: f128 = 1e-28; // the intrinsics. #[test] -#[cfg(not(miri))] -#[cfg(target_has_reliable_f128_math)] -fn test_mul_add() { - let nan: f128 = f128::NAN; - let inf: f128 = f128::INFINITY; - let neg_inf: f128 = f128::NEG_INFINITY; - assert_biteq!(12.3f128.mul_add(4.5, 6.7), 62.0500000000000000000000000000000037); - assert_biteq!((-12.3f128).mul_add(-4.5, -6.7), 48.6500000000000000000000000000000049); - assert_biteq!(0.0f128.mul_add(8.9, 1.2), 1.2); - assert_biteq!(3.4f128.mul_add(-0.0, 5.6), 5.6); - assert!(nan.mul_add(7.8, 9.0).is_nan()); - assert_biteq!(inf.mul_add(7.8, 9.0), inf); - assert_biteq!(neg_inf.mul_add(7.8, 9.0), neg_inf); - assert_biteq!(8.9f128.mul_add(inf, 3.2), inf); - assert_biteq!((-3.2f128).mul_add(2.4, neg_inf), neg_inf); -} - -#[test] #[cfg(any(miri, target_has_reliable_f128_math))] fn test_max_recip() { assert_approx_eq!( diff --git a/library/coretests/tests/floats/f16.rs b/library/coretests/tests/floats/f16.rs index 302fd0861d7..7ffafd467a5 100644 --- a/library/coretests/tests/floats/f16.rs +++ b/library/coretests/tests/floats/f16.rs @@ -23,24 +23,6 @@ const TOL_P4: f16 = 10.0; // the intrinsics. #[test] -#[cfg(not(miri))] -#[cfg(target_has_reliable_f16_math)] -fn test_mul_add() { - let nan: f16 = f16::NAN; - let inf: f16 = f16::INFINITY; - let neg_inf: f16 = f16::NEG_INFINITY; - assert_biteq!(12.3f16.mul_add(4.5, 6.7), 62.031); - assert_biteq!((-12.3f16).mul_add(-4.5, -6.7), 48.625); - assert_biteq!(0.0f16.mul_add(8.9, 1.2), 1.2); - assert_biteq!(3.4f16.mul_add(-0.0, 5.6), 5.6); - assert!(nan.mul_add(7.8, 9.0).is_nan()); - assert_biteq!(inf.mul_add(7.8, 9.0), inf); - assert_biteq!(neg_inf.mul_add(7.8, 9.0), neg_inf); - assert_biteq!(8.9f16.mul_add(inf, 3.2), inf); - assert_biteq!((-3.2f16).mul_add(2.4, neg_inf), neg_inf); -} - -#[test] #[cfg(any(miri, target_has_reliable_f16_math))] fn test_max_recip() { assert_approx_eq!(f16::MAX.recip(), 1.526624e-5f16, 1e-4); diff --git a/library/coretests/tests/floats/f32.rs b/library/coretests/tests/floats/f32.rs deleted file mode 100644 index a1fe8b07650..00000000000 --- a/library/coretests/tests/floats/f32.rs +++ /dev/null @@ -1,21 +0,0 @@ -use core::f32; - -use super::assert_biteq; - -// FIXME(#140515): mingw has an incorrect fma https://sourceforge.net/p/mingw-w64/bugs/848/ -#[cfg_attr(all(target_os = "windows", target_env = "gnu", not(target_abi = "llvm")), ignore)] -#[test] -fn test_mul_add() { - let nan: f32 = f32::NAN; - let inf: f32 = f32::INFINITY; - let neg_inf: f32 = f32::NEG_INFINITY; - assert_biteq!(f32::math::mul_add(12.3f32, 4.5, 6.7), 62.05); - assert_biteq!(f32::math::mul_add(-12.3f32, -4.5, -6.7), 48.65); - assert_biteq!(f32::math::mul_add(0.0f32, 8.9, 1.2), 1.2); - assert_biteq!(f32::math::mul_add(3.4f32, -0.0, 5.6), 5.6); - assert!(f32::math::mul_add(nan, 7.8, 9.0).is_nan()); - assert_biteq!(f32::math::mul_add(inf, 7.8, 9.0), inf); - assert_biteq!(f32::math::mul_add(neg_inf, 7.8, 9.0), neg_inf); - assert_biteq!(f32::math::mul_add(8.9f32, inf, 3.2), inf); - assert_biteq!(f32::math::mul_add(-3.2f32, 2.4, neg_inf), neg_inf); -} diff --git a/library/coretests/tests/floats/f64.rs b/library/coretests/tests/floats/f64.rs deleted file mode 100644 index 4c5a3d68d1f..00000000000 --- a/library/coretests/tests/floats/f64.rs +++ /dev/null @@ -1,21 +0,0 @@ -use core::f64; - -use super::assert_biteq; - -// FIXME(#140515): mingw has an incorrect fma https://sourceforge.net/p/mingw-w64/bugs/848/ -#[cfg_attr(all(target_os = "windows", target_env = "gnu", not(target_abi = "llvm")), ignore)] -#[test] -fn test_mul_add() { - let nan: f64 = f64::NAN; - let inf: f64 = f64::INFINITY; - let neg_inf: f64 = f64::NEG_INFINITY; - assert_biteq!(12.3f64.mul_add(4.5, 6.7), 62.050000000000004); - assert_biteq!((-12.3f64).mul_add(-4.5, -6.7), 48.650000000000006); - assert_biteq!(0.0f64.mul_add(8.9, 1.2), 1.2); - assert_biteq!(3.4f64.mul_add(-0.0, 5.6), 5.6); - assert!(nan.mul_add(7.8, 9.0).is_nan()); - assert_biteq!(inf.mul_add(7.8, 9.0), inf); - assert_biteq!(neg_inf.mul_add(7.8, 9.0), neg_inf); - assert_biteq!(8.9f64.mul_add(inf, 3.2), inf); - assert_biteq!((-3.2f64).mul_add(2.4, neg_inf), neg_inf); -} diff --git a/library/coretests/tests/floats/mod.rs b/library/coretests/tests/floats/mod.rs index d2b57223094..0348065d17f 100644 --- a/library/coretests/tests/floats/mod.rs +++ b/library/coretests/tests/floats/mod.rs @@ -34,6 +34,10 @@ trait TestableFloat: Sized { const RAW_12_DOT_5: Self; const RAW_1337: Self; const RAW_MINUS_14_DOT_25: Self; + /// The result of 12.3.mul_add(4.5, 6.7) + const MUL_ADD_RESULT: Self; + /// The result of (-12.3).mul_add(-4.5, -6.7) + const NEG_MUL_ADD_RESULT: Self; } impl TestableFloat for f16 { @@ -58,6 +62,8 @@ impl TestableFloat for f16 { const RAW_12_DOT_5: Self = Self::from_bits(0x4a40); const RAW_1337: Self = Self::from_bits(0x6539); const RAW_MINUS_14_DOT_25: Self = Self::from_bits(0xcb20); + const MUL_ADD_RESULT: Self = 62.031; + const NEG_MUL_ADD_RESULT: Self = 48.625; } impl TestableFloat for f32 { @@ -84,6 +90,8 @@ impl TestableFloat for f32 { const RAW_12_DOT_5: Self = Self::from_bits(0x41480000); const RAW_1337: Self = Self::from_bits(0x44a72000); const RAW_MINUS_14_DOT_25: Self = Self::from_bits(0xc1640000); + const MUL_ADD_RESULT: Self = 62.05; + const NEG_MUL_ADD_RESULT: Self = 48.65; } impl TestableFloat for f64 { @@ -106,6 +114,8 @@ impl TestableFloat for f64 { const RAW_12_DOT_5: Self = Self::from_bits(0x4029000000000000); const RAW_1337: Self = Self::from_bits(0x4094e40000000000); const RAW_MINUS_14_DOT_25: Self = Self::from_bits(0xc02c800000000000); + const MUL_ADD_RESULT: Self = 62.050000000000004; + const NEG_MUL_ADD_RESULT: Self = 48.650000000000006; } impl TestableFloat for f128 { @@ -128,6 +138,8 @@ impl TestableFloat for f128 { const RAW_12_DOT_5: Self = Self::from_bits(0x40029000000000000000000000000000); const RAW_1337: Self = Self::from_bits(0x40094e40000000000000000000000000); const RAW_MINUS_14_DOT_25: Self = Self::from_bits(0xc002c800000000000000000000000000); + const MUL_ADD_RESULT: Self = 62.0500000000000000000000000000000037; + const NEG_MUL_ADD_RESULT: Self = 48.6500000000000000000000000000000049; } /// Determine the tolerance for values of the argument type. @@ -359,8 +371,6 @@ macro_rules! float_test { mod f128; mod f16; -mod f32; -mod f64; float_test! { name: num, @@ -1180,15 +1190,12 @@ float_test! { } } -// FIXME(f16_f128,miri): many of these have to be disabled since miri does not yet support -// the intrinsics. - float_test! { name: sqrt_domain, attrs: { const: #[cfg(false)], - f16: #[cfg(all(not(miri), target_has_reliable_f16_math))], - f128: #[cfg(all(not(miri), target_has_reliable_f128_math))], + f16: #[cfg(any(miri, target_has_reliable_f16_math))], + f128: #[cfg(any(miri, target_has_reliable_f128_math))], }, test<Float> { assert!(Float::NAN.sqrt().is_nan()); @@ -1246,8 +1253,8 @@ float_test! { float_test! { name: total_cmp, attrs: { - f16: #[cfg(all(not(miri), target_has_reliable_f16_math))], - f128: #[cfg(all(not(miri), target_has_reliable_f128_math))], + f16: #[cfg(any(miri, target_has_reliable_f16_math))], + f128: #[cfg(any(miri, target_has_reliable_f128_math))], }, test<Float> { use core::cmp::Ordering; @@ -1355,8 +1362,8 @@ float_test! { name: total_cmp_s_nan, attrs: { const: #[cfg(false)], - f16: #[cfg(false)], - f128: #[cfg(all(not(miri), target_has_reliable_f128_math))], + f16: #[cfg(miri)], + f128: #[cfg(any(miri, target_has_reliable_f128_math))], }, test<Float> { use core::cmp::Ordering; @@ -1432,6 +1439,7 @@ float_test! { name: powi, attrs: { const: #[cfg(false)], + // FIXME(f16_f128): `powi` does not work in Miri for these types f16: #[cfg(all(not(miri), target_has_reliable_f16_math))], f128: #[cfg(all(not(miri), target_has_reliable_f128_math))], }, @@ -1452,8 +1460,8 @@ float_test! { float_test! { name: to_degrees, attrs: { - f16: #[cfg(target_has_reliable_f16)], - f128: #[cfg(target_has_reliable_f128)], + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], }, test<Float> { let pi: Float = Float::PI; @@ -1473,8 +1481,8 @@ float_test! { float_test! { name: to_radians, attrs: { - f16: #[cfg(target_has_reliable_f16)], - f128: #[cfg(target_has_reliable_f128)], + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], }, test<Float> { let pi: Float = Float::PI; @@ -1494,8 +1502,8 @@ float_test! { float_test! { name: to_algebraic, attrs: { - f16: #[cfg(target_has_reliable_f16)], - f128: #[cfg(target_has_reliable_f128)], + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], }, test<Float> { let a: Float = 123.0; @@ -1518,8 +1526,8 @@ float_test! { float_test! { name: to_bits_conv, attrs: { - f16: #[cfg(target_has_reliable_f16)], - f128: #[cfg(target_has_reliable_f128)], + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], }, test<Float> { assert_biteq!(flt(1.0), Float::RAW_1); @@ -1541,3 +1549,28 @@ float_test! { assert_biteq!(Float::from_bits(masked_nan2), Float::from_bits(masked_nan2)); } } + +float_test! { + name: mul_add, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16))], + // FIXME(#140515): mingw has an incorrect fma https://sourceforge.net/p/mingw-w64/bugs/848/ + f32: #[cfg_attr(all(target_os = "windows", target_env = "gnu", not(target_abi = "llvm")), ignore)], + f64: #[cfg_attr(all(target_os = "windows", target_env = "gnu", not(target_abi = "llvm")), ignore)], + f128: #[cfg(any(miri, target_has_reliable_f128))], + }, + test<Float> { + let nan: Float = Float::NAN; + let inf: Float = Float::INFINITY; + let neg_inf: Float = Float::NEG_INFINITY; + assert_biteq!(flt(12.3).mul_add(4.5, 6.7), Float::MUL_ADD_RESULT); + assert_biteq!((flt(-12.3)).mul_add(-4.5, -6.7), Float::NEG_MUL_ADD_RESULT); + assert_biteq!(flt(0.0).mul_add(8.9, 1.2), 1.2); + assert_biteq!(flt(3.4).mul_add(-0.0, 5.6), 5.6); + assert!(nan.mul_add(7.8, 9.0).is_nan()); + assert_biteq!(inf.mul_add(7.8, 9.0), inf); + assert_biteq!(neg_inf.mul_add(7.8, 9.0), neg_inf); + assert_biteq!(flt(8.9).mul_add(inf, 3.2), inf); + assert_biteq!((flt(-3.2)).mul_add(2.4, neg_inf), neg_inf); + } +} diff --git a/library/coretests/tests/fmt/mod.rs b/library/coretests/tests/fmt/mod.rs index 586e890befe..d0ae7124f47 100644 --- a/library/coretests/tests/fmt/mod.rs +++ b/library/coretests/tests/fmt/mod.rs @@ -12,6 +12,12 @@ fn test_lifetime() { let a = format_args!("hello {a} {a:?}"); assert_eq!(a.to_string(), "hello hello hello hello hello hello hello"); + // Check that temporaries as arguments are extended. + let b = format_args!("{}", String::new()); + let c = format_args!("{}{}", String::new(), String::new()); + assert_eq!(b.to_string(), ""); + assert_eq!(c.to_string(), ""); + // Without arguments, it should also work in consts. const A: std::fmt::Arguments<'static> = format_args!("hello"); assert_eq!(A.to_string(), "hello"); diff --git a/library/coretests/tests/lib.rs b/library/coretests/tests/lib.rs index 5c519f3a499..a80d7f8b44d 100644 --- a/library/coretests/tests/lib.rs +++ b/library/coretests/tests/lib.rs @@ -20,6 +20,7 @@ #![feature(const_convert)] #![feature(const_destruct)] #![feature(const_eval_select)] +#![feature(const_mul_add)] #![feature(const_ops)] #![feature(const_option_ops)] #![feature(const_ref_cell)] diff --git a/library/std/Cargo.toml b/library/std/Cargo.toml index 958cafb8f3d..888914a2f77 100644 --- a/library/std/Cargo.toml +++ b/library/std/Cargo.toml @@ -62,7 +62,7 @@ path = "../windows_targets" rand = { version = "0.9.0", default-features = false, features = ["alloc"] } rand_xorshift = "0.4.0" -[target.'cfg(any(all(target_family = "wasm", target_os = "unknown"), target_os = "xous", all(target_vendor = "fortanix", target_env = "sgx")))'.dependencies] +[target.'cfg(any(all(target_family = "wasm", target_os = "unknown"), target_os = "xous", target_os = "vexos", all(target_vendor = "fortanix", target_env = "sgx")))'.dependencies] dlmalloc = { version = "0.2.10", features = ['rustc-dep-of-std'] } [target.x86_64-fortanix-unknown-sgx.dependencies] @@ -89,6 +89,11 @@ wasip2 = { version = '0.14.4', features = [ r-efi = { version = "5.2.0", features = ['rustc-dep-of-std'] } r-efi-alloc = { version = "2.0.0", features = ['rustc-dep-of-std'] } +[target.'cfg(target_os = "vexos")'.dependencies] +vex-sdk = { version = "0.27.0", features = [ + 'rustc-dep-of-std', +], default-features = false } + [features] backtrace = [ 'addr2line/rustc-dep-of-std', diff --git a/library/std/build.rs b/library/std/build.rs index ef695601a44..8a5a785060c 100644 --- a/library/std/build.rs +++ b/library/std/build.rs @@ -52,6 +52,7 @@ fn main() { || target_os == "rtems" || target_os == "nuttx" || target_os == "cygwin" + || target_os == "vexos" // See src/bootstrap/src/core/build_steps/synthetic_targets.rs || env::var("RUSTC_BOOTSTRAP_SYNTHETIC_TARGET").is_ok() diff --git a/library/std/src/env.rs b/library/std/src/env.rs index e457cd61c75..6d716bd8544 100644 --- a/library/std/src/env.rs +++ b/library/std/src/env.rs @@ -1098,6 +1098,7 @@ pub mod consts { /// * `"redox"` /// * `"solaris"` /// * `"solid_asp3` + /// * `"vexos"` /// * `"vita"` /// * `"vxworks"` /// * `"xous"` @@ -1148,6 +1149,7 @@ pub mod consts { /// /// <details><summary>Full list of possible values</summary> /// + /// * `"bin"` /// * `"exe"` /// * `"efi"` /// * `"js"` diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index 45abd6bca8a..233e41aa345 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -332,6 +332,7 @@ #![feature(char_internals)] #![feature(clone_to_uninit)] #![feature(const_convert)] +#![feature(const_mul_add)] #![feature(core_intrinsics)] #![feature(core_io_borrowed_buf)] #![feature(drop_guard)] diff --git a/library/std/src/net/socket_addr.rs b/library/std/src/net/socket_addr.rs index 5b56dd3f744..8214ad381f1 100644 --- a/library/std/src/net/socket_addr.rs +++ b/library/std/src/net/socket_addr.rs @@ -28,6 +28,8 @@ use crate::{io, iter, option, slice, vec}; /// [`SocketAddr`] as expected by its [`FromStr`] implementation or a string like /// `<host_name>:<port>` pair where `<port>` is a [`u16`] value. /// +/// * <code>&[[SocketAddr]]</code>: all [`SocketAddr`] values in the slice will be used. +/// /// This trait allows constructing network objects like [`TcpStream`] or /// [`UdpSocket`] easily with values of various types for the bind/connection /// address. It is needed because sometimes one type is more appropriate than diff --git a/library/std/src/num/f32.rs b/library/std/src/num/f32.rs index ac1d889cc37..e7810e77e76 100644 --- a/library/std/src/num/f32.rs +++ b/library/std/src/num/f32.rs @@ -217,7 +217,8 @@ impl f32 { #[must_use = "method returns a new number and does not mutate the original value"] #[stable(feature = "rust1", since = "1.0.0")] #[inline] - pub fn mul_add(self, a: f32, b: f32) -> f32 { + #[rustc_const_unstable(feature = "const_mul_add", issue = "146724")] + pub const fn mul_add(self, a: f32, b: f32) -> f32 { core::f32::math::mul_add(self, a, b) } diff --git a/library/std/src/num/f64.rs b/library/std/src/num/f64.rs index 55c8593a0c0..cbebbfb1be1 100644 --- a/library/std/src/num/f64.rs +++ b/library/std/src/num/f64.rs @@ -217,7 +217,8 @@ impl f64 { #[must_use = "method returns a new number and does not mutate the original value"] #[stable(feature = "rust1", since = "1.0.0")] #[inline] - pub fn mul_add(self, a: f64, b: f64) -> f64 { + #[rustc_const_unstable(feature = "const_mul_add", issue = "146724")] + pub const fn mul_add(self, a: f64, b: f64) -> f64 { core::f64::math::mul_add(self, a, b) } diff --git a/library/std/src/sys/alloc/mod.rs b/library/std/src/sys/alloc/mod.rs index 6d4b09494a3..2045b2fecc6 100644 --- a/library/std/src/sys/alloc/mod.rs +++ b/library/std/src/sys/alloc/mod.rs @@ -92,6 +92,9 @@ cfg_select! { target_os = "uefi" => { mod uefi; } + target_os = "vexos" => { + mod vexos; + } target_family = "wasm" => { mod wasm; } diff --git a/library/std/src/sys/alloc/vexos.rs b/library/std/src/sys/alloc/vexos.rs new file mode 100644 index 00000000000..c1fb6896a89 --- /dev/null +++ b/library/std/src/sys/alloc/vexos.rs @@ -0,0 +1,96 @@ +// FIXME(static_mut_refs): Do not allow `static_mut_refs` lint +#![allow(static_mut_refs)] + +use crate::alloc::{GlobalAlloc, Layout, System}; +use crate::ptr; +use crate::sync::atomic::{AtomicBool, Ordering}; + +// Symbols for heap section boundaries defined in the target's linkerscript +unsafe extern "C" { + static mut __heap_start: u8; + static mut __heap_end: u8; +} + +static mut DLMALLOC: dlmalloc::Dlmalloc<Vexos> = dlmalloc::Dlmalloc::new_with_allocator(Vexos); + +struct Vexos; + +unsafe impl dlmalloc::Allocator for Vexos { + /// Allocs system resources + fn alloc(&self, _size: usize) -> (*mut u8, usize, u32) { + static INIT: AtomicBool = AtomicBool::new(false); + + if !INIT.swap(true, Ordering::Relaxed) { + // This target has no growable heap, as user memory has a fixed + // size/location and VEXos does not manage allocation for us. + unsafe { + ( + (&raw mut __heap_start).cast::<u8>(), + (&raw const __heap_end).offset_from_unsigned(&raw const __heap_start), + 0, + ) + } + } else { + (ptr::null_mut(), 0, 0) + } + } + + fn remap(&self, _ptr: *mut u8, _oldsize: usize, _newsize: usize, _can_move: bool) -> *mut u8 { + ptr::null_mut() + } + + fn free_part(&self, _ptr: *mut u8, _oldsize: usize, _newsize: usize) -> bool { + false + } + + fn free(&self, _ptr: *mut u8, _size: usize) -> bool { + return false; + } + + fn can_release_part(&self, _flags: u32) -> bool { + false + } + + fn allocates_zeros(&self) -> bool { + false + } + + fn page_size(&self) -> usize { + 0x1000 + } +} + +#[stable(feature = "alloc_system_type", since = "1.28.0")] +unsafe impl GlobalAlloc for System { + #[inline] + unsafe fn alloc(&self, layout: Layout) -> *mut u8 { + // SAFETY: DLMALLOC access is guaranteed to be safe because we are a single-threaded target, which + // guarantees unique and non-reentrant access to the allocator. As such, no allocator lock is used. + // Calling malloc() is safe because preconditions on this function match the trait method preconditions. + unsafe { DLMALLOC.malloc(layout.size(), layout.align()) } + } + + #[inline] + unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8 { + // SAFETY: DLMALLOC access is guaranteed to be safe because we are a single-threaded target, which + // guarantees unique and non-reentrant access to the allocator. As such, no allocator lock is used. + // Calling calloc() is safe because preconditions on this function match the trait method preconditions. + unsafe { DLMALLOC.calloc(layout.size(), layout.align()) } + } + + #[inline] + unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) { + // SAFETY: DLMALLOC access is guaranteed to be safe because we are a single-threaded target, which + // guarantees unique and non-reentrant access to the allocator. As such, no allocator lock is used. + // Calling free() is safe because preconditions on this function match the trait method preconditions. + unsafe { DLMALLOC.free(ptr, layout.size(), layout.align()) } + } + + #[inline] + unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 { + // SAFETY: DLMALLOC access is guaranteed to be safe because we are a single-threaded target, which + // guarantees unique and non-reentrant access to the allocator. As such, no allocator lock is used. + // Calling realloc() is safe because preconditions on this function match the trait method preconditions. + unsafe { DLMALLOC.realloc(ptr, layout.size(), layout.align(), new_size) } + } +} diff --git a/library/std/src/sys/env_consts.rs b/library/std/src/sys/env_consts.rs index 711ba0a5f8a..573f540483b 100644 --- a/library/std/src/sys/env_consts.rs +++ b/library/std/src/sys/env_consts.rs @@ -323,6 +323,17 @@ pub mod os { pub const EXE_EXTENSION: &str = "efi"; } +#[cfg(target_os = "vexos")] +pub mod os { + pub const FAMILY: &str = ""; + pub const OS: &str = "vexos"; + pub const DLL_PREFIX: &str = ""; + pub const DLL_SUFFIX: &str = ""; + pub const DLL_EXTENSION: &str = ""; + pub const EXE_SUFFIX: &str = ".bin"; + pub const EXE_EXTENSION: &str = "bin"; +} + #[cfg(target_os = "visionos")] pub mod os { pub const FAMILY: &str = "unix"; diff --git a/library/std/src/sys/fs/mod.rs b/library/std/src/sys/fs/mod.rs index 0276bf6e64c..64f5a6b36d3 100644 --- a/library/std/src/sys/fs/mod.rs +++ b/library/std/src/sys/fs/mod.rs @@ -35,6 +35,10 @@ cfg_select! { mod uefi; use uefi as imp; } + target_os = "vexos" => { + mod vexos; + use vexos as imp; + } target_os = "wasi" => { mod wasi; use wasi as imp; diff --git a/library/std/src/sys/fs/vexos.rs b/library/std/src/sys/fs/vexos.rs new file mode 100644 index 00000000000..f642e7cb074 --- /dev/null +++ b/library/std/src/sys/fs/vexos.rs @@ -0,0 +1,615 @@ +use crate::ffi::{OsString, c_char}; +use crate::fmt; +use crate::fs::TryLockError; +use crate::hash::Hash; +use crate::io::{self, BorrowedCursor, IoSlice, IoSliceMut, SeekFrom}; +use crate::path::{Path, PathBuf}; +use crate::sys::common::small_c_string::run_path_with_cstr; +use crate::sys::time::SystemTime; +use crate::sys::{unsupported, unsupported_err}; + +#[expect(dead_code)] +#[path = "unsupported.rs"] +mod unsupported_fs; +pub use unsupported_fs::{ + DirBuilder, FileTimes, canonicalize, link, readlink, remove_dir_all, rename, rmdir, symlink, + unlink, +}; + +/// VEXos file descriptor. +/// +/// This stores an opaque pointer to a [FatFs file object structure] managed by VEXos +/// representing an open file on disk. +/// +/// [FatFs file object structure]: https://github.com/Xilinx/embeddedsw/blob/master/lib/sw_services/xilffs/src/include/ff.h?rgh-link-date=2025-09-23T20%3A03%3A43Z#L215 +/// +/// # Safety +/// +/// Since this platform uses a pointer to to an internal filesystem structure with a lifetime +/// associated with it (rather than a UNIX-style file descriptor table), care must be taken to +/// ensure that the pointer held by `FileDesc` is valid for as long as it exists. +#[derive(Debug)] +struct FileDesc(*mut vex_sdk::FIL); + +// SAFETY: VEXos's FDs can be used on a thread other than the one they were created on. +unsafe impl Send for FileDesc {} +// SAFETY: We assume an environment without threads (i.e. no RTOS). +// (If there were threads, it is possible that a mutex would be required.) +unsafe impl Sync for FileDesc {} + +pub struct File { + fd: FileDesc, +} + +#[derive(Clone)] +pub enum FileAttr { + Dir, + File { size: u64 }, +} + +pub struct ReadDir(!); + +pub struct DirEntry { + path: PathBuf, +} + +#[derive(Clone, Debug)] +pub struct OpenOptions { + read: bool, + write: bool, + append: bool, + truncate: bool, + create: bool, + create_new: bool, +} + +#[derive(Clone, PartialEq, Eq, Debug)] +pub struct FilePermissions {} + +#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)] +pub struct FileType { + is_dir: bool, +} + +impl FileAttr { + pub fn size(&self) -> u64 { + match self { + Self::File { size } => *size, + Self::Dir => 0, + } + } + + pub fn perm(&self) -> FilePermissions { + FilePermissions {} + } + + pub fn file_type(&self) -> FileType { + FileType { is_dir: matches!(self, FileAttr::Dir) } + } + + pub fn modified(&self) -> io::Result<SystemTime> { + unsupported() + } + + pub fn accessed(&self) -> io::Result<SystemTime> { + unsupported() + } + + pub fn created(&self) -> io::Result<SystemTime> { + unsupported() + } +} + +impl FilePermissions { + pub fn readonly(&self) -> bool { + false + } + + pub fn set_readonly(&mut self, _readonly: bool) { + panic!("Perimissions do not exist") + } +} + +impl FileType { + pub fn is_dir(&self) -> bool { + self.is_dir + } + + pub fn is_file(&self) -> bool { + !self.is_dir + } + + pub fn is_symlink(&self) -> bool { + // No symlinks in VEXos - entries are either files or directories. + false + } +} + +impl fmt::Debug for ReadDir { + fn fmt(&self, _f: &mut fmt::Formatter<'_>) -> fmt::Result { + self.0 + } +} + +impl Iterator for ReadDir { + type Item = io::Result<DirEntry>; + + fn next(&mut self) -> Option<io::Result<DirEntry>> { + self.0 + } +} + +impl DirEntry { + pub fn path(&self) -> PathBuf { + self.path.clone() + } + + pub fn file_name(&self) -> OsString { + self.path.file_name().unwrap_or_default().into() + } + + pub fn metadata(&self) -> io::Result<FileAttr> { + stat(&self.path) + } + + pub fn file_type(&self) -> io::Result<FileType> { + Ok(self.metadata()?.file_type()) + } +} + +impl OpenOptions { + pub fn new() -> OpenOptions { + OpenOptions { + read: false, + write: false, + append: false, + truncate: false, + create: false, + create_new: false, + } + } + + pub fn read(&mut self, read: bool) { + self.read = read; + } + pub fn write(&mut self, write: bool) { + self.write = write; + } + pub fn append(&mut self, append: bool) { + self.append = append; + } + pub fn truncate(&mut self, truncate: bool) { + self.truncate = truncate; + } + pub fn create(&mut self, create: bool) { + self.create = create; + } + pub fn create_new(&mut self, create_new: bool) { + self.create_new = create_new; + } +} + +impl File { + pub fn open(path: &Path, opts: &OpenOptions) -> io::Result<File> { + run_path_with_cstr(path, &|path| { + // Enforce the invariants of `create_new`/`create`. + // + // Since VEXos doesn't have anything akin to POSIX's `oflags`, we need to enforce + // the requirements that `create_new` can't have an existing file and `!create` + // doesn't create a file ourselves. + if !opts.read && (opts.write || opts.append) && (opts.create_new || !opts.create) { + let status = unsafe { vex_sdk::vexFileStatus(path.as_ptr()) }; + + if opts.create_new && status != 0 { + return Err(io::const_error!(io::ErrorKind::AlreadyExists, "file exists",)); + } else if !opts.create && status == 0 { + return Err(io::const_error!( + io::ErrorKind::NotFound, + "no such file or directory", + )); + } + } + + let file = match opts { + // read + write - unsupported + OpenOptions { read: true, write: true, .. } => { + return Err(io::const_error!( + io::ErrorKind::InvalidInput, + "opening files with read and write access is unsupported on this target", + )); + } + + // read + OpenOptions { + read: true, + write: false, + append: _, + truncate: false, + create: false, + create_new: false, + } => unsafe { vex_sdk::vexFileOpen(path.as_ptr(), c"".as_ptr()) }, + + // append + OpenOptions { + read: false, + write: _, + append: true, + truncate: false, + create: _, + create_new: _, + } => unsafe { vex_sdk::vexFileOpenWrite(path.as_ptr()) }, + + // write + OpenOptions { + read: false, + write: true, + append: false, + truncate, + create: _, + create_new: _, + } => unsafe { + if *truncate { + vex_sdk::vexFileOpenCreate(path.as_ptr()) + } else { + // Open in append, but jump to the start of the file. + let fd = vex_sdk::vexFileOpenWrite(path.as_ptr()); + vex_sdk::vexFileSeek(fd, 0, 0); + fd + } + }, + + _ => { + return Err(io::const_error!(io::ErrorKind::InvalidInput, "invalid argument")); + } + }; + + if file.is_null() { + Err(io::const_error!(io::ErrorKind::NotFound, "could not open file")) + } else { + Ok(Self { fd: FileDesc(file) }) + } + }) + } + + pub fn file_attr(&self) -> io::Result<FileAttr> { + // `vexFileSize` returns -1 upon error, so u64::try_from will fail on error. + if let Ok(size) = u64::try_from(unsafe { + // SAFETY: `self.fd` contains a valid pointer to `FIL` for this struct's lifetime. + vex_sdk::vexFileSize(self.fd.0) + }) { + Ok(FileAttr::File { size }) + } else { + Err(io::const_error!(io::ErrorKind::InvalidData, "failed to get file size")) + } + } + + pub fn fsync(&self) -> io::Result<()> { + self.flush() + } + + pub fn datasync(&self) -> io::Result<()> { + self.flush() + } + + pub fn lock(&self) -> io::Result<()> { + unsupported() + } + + pub fn lock_shared(&self) -> io::Result<()> { + unsupported() + } + + pub fn try_lock(&self) -> Result<(), TryLockError> { + Err(TryLockError::Error(unsupported_err())) + } + + pub fn try_lock_shared(&self) -> Result<(), TryLockError> { + Err(TryLockError::Error(unsupported_err())) + } + + pub fn unlock(&self) -> io::Result<()> { + unsupported() + } + + pub fn truncate(&self, _size: u64) -> io::Result<()> { + unsupported() + } + + pub fn read(&self, buf: &mut [u8]) -> io::Result<usize> { + let len = buf.len() as u32; + let buf_ptr = buf.as_mut_ptr(); + let read = unsafe { + // SAFETY: `self.fd` contains a valid pointer to `FIL` for this struct's lifetime. + vex_sdk::vexFileRead(buf_ptr.cast::<c_char>(), 1, len, self.fd.0) + }; + + if read < 0 { + Err(io::const_error!(io::ErrorKind::Other, "could not read from file")) + } else { + Ok(read as usize) + } + } + + pub fn read_vectored(&self, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> { + crate::io::default_read_vectored(|b| self.read(b), bufs) + } + + #[inline] + pub fn is_read_vectored(&self) -> bool { + false + } + + pub fn read_buf(&self, cursor: BorrowedCursor<'_>) -> io::Result<()> { + crate::io::default_read_buf(|b| self.read(b), cursor) + } + + pub fn write(&self, buf: &[u8]) -> io::Result<usize> { + let len = buf.len() as u32; + let buf_ptr = buf.as_ptr(); + let written = unsafe { + // SAFETY: `self.fd` contains a valid pointer to `FIL` for this struct's lifetime. + vex_sdk::vexFileWrite(buf_ptr.cast_mut().cast::<c_char>(), 1, len, self.fd.0) + }; + + if written < 0 { + Err(io::const_error!(io::ErrorKind::Other, "could not write to file")) + } else { + Ok(written as usize) + } + } + + pub fn write_vectored(&self, bufs: &[IoSlice<'_>]) -> io::Result<usize> { + crate::io::default_write_vectored(|b| self.write(b), bufs) + } + + #[inline] + pub fn is_write_vectored(&self) -> bool { + false + } + + pub fn flush(&self) -> io::Result<()> { + unsafe { + // SAFETY: `self.fd` contains a valid pointer to `FIL` for this struct's lifetime. + vex_sdk::vexFileSync(self.fd.0); + } + Ok(()) + } + + pub fn tell(&self) -> io::Result<u64> { + // SAFETY: `self.fd` contains a valid pointer to `FIL` for this struct's lifetime. + let position = unsafe { vex_sdk::vexFileTell(self.fd.0) }; + + position.try_into().map_err(|_| { + io::const_error!(io::ErrorKind::InvalidData, "failed to get current location in file") + }) + } + + pub fn size(&self) -> Option<io::Result<u64>> { + None + } + + pub fn seek(&self, pos: SeekFrom) -> io::Result<u64> { + const SEEK_SET: i32 = 0; + const SEEK_CUR: i32 = 1; + const SEEK_END: i32 = 2; + + fn try_convert_offset<T: TryInto<u32>>(offset: T) -> io::Result<u32> { + offset.try_into().map_err(|_| { + io::const_error!( + io::ErrorKind::InvalidInput, + "cannot seek to an offset too large to fit in a 32 bit integer", + ) + }) + } + + // SAFETY: `self.fd` contains a valid pointer to `FIL` for this struct's lifetime. + match pos { + SeekFrom::Start(offset) => unsafe { + map_fresult(vex_sdk::vexFileSeek(self.fd.0, try_convert_offset(offset)?, SEEK_SET))? + }, + SeekFrom::End(offset) => unsafe { + if offset >= 0 { + map_fresult(vex_sdk::vexFileSeek( + self.fd.0, + try_convert_offset(offset)?, + SEEK_END, + ))? + } else { + // `vexFileSeek` does not support seeking with negative offset, meaning + // we have to calculate the offset from the end of the file ourselves. + + // Seek to the end of the file to get the end position in the open buffer. + map_fresult(vex_sdk::vexFileSeek(self.fd.0, 0, SEEK_END))?; + let end_position = self.tell()?; + + map_fresult(vex_sdk::vexFileSeek( + self.fd.0, + // NOTE: Files internally use a 32-bit representation for stream + // position, so `end_position as i64` should never overflow. + try_convert_offset(end_position as i64 + offset)?, + SEEK_SET, + ))? + } + }, + SeekFrom::Current(offset) => unsafe { + if offset >= 0 { + map_fresult(vex_sdk::vexFileSeek( + self.fd.0, + try_convert_offset(offset)?, + SEEK_CUR, + ))? + } else { + // `vexFileSeek` does not support seeking with negative offset, meaning + // we have to calculate the offset from the stream position ourselves. + map_fresult(vex_sdk::vexFileSeek( + self.fd.0, + try_convert_offset((self.tell()? as i64) + offset)?, + SEEK_SET, + ))? + } + }, + } + + Ok(self.tell()?) + } + + pub fn duplicate(&self) -> io::Result<File> { + unsupported() + } + + pub fn set_permissions(&self, _perm: FilePermissions) -> io::Result<()> { + unsupported() + } + + pub fn set_times(&self, _times: FileTimes) -> io::Result<()> { + unsupported() + } +} + +impl fmt::Debug for File { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.debug_struct("File").field("fd", &self.fd.0).finish() + } +} +impl Drop for File { + fn drop(&mut self) { + unsafe { vex_sdk::vexFileClose(self.fd.0) }; + } +} + +pub fn readdir(_p: &Path) -> io::Result<ReadDir> { + // While there *is* a userspace function for reading file directories, + // the necessary implementation cannot currently be done cleanly, as + // VEXos does not expose directory length to user programs. + // + // This means that we would need to create a large fixed-length buffer + // and hope that the folder's contents didn't exceed that buffer's length, + // which obviously isn't behavior we want to rely on in the standard library. + unsupported() +} + +pub fn set_perm(_p: &Path, _perm: FilePermissions) -> io::Result<()> { + unsupported() +} + +pub fn exists(path: &Path) -> io::Result<bool> { + run_path_with_cstr(path, &|path| Ok(unsafe { vex_sdk::vexFileStatus(path.as_ptr()) } != 0)) +} + +pub fn stat(p: &Path) -> io::Result<FileAttr> { + // `vexFileStatus` returns 3 if the given path is a directory, 1 if the path is a + // file, or 0 if no such path exists. + const FILE_STATUS_DIR: u32 = 3; + + run_path_with_cstr(p, &|c_path| { + let file_type = unsafe { vex_sdk::vexFileStatus(c_path.as_ptr()) }; + + // We can't get the size if its a directory because we cant open it as a file + if file_type == FILE_STATUS_DIR { + Ok(FileAttr::Dir) + } else { + let mut opts = OpenOptions::new(); + opts.read(true); + let file = File::open(p, &opts)?; + file.file_attr() + } + }) +} + +pub fn lstat(p: &Path) -> io::Result<FileAttr> { + // Symlinks aren't supported in this filesystem + stat(p) +} + +// Cannot use `copy` from `common` here, since `File::set_permissions` is unsupported on this target. +pub fn copy(from: &Path, to: &Path) -> io::Result<u64> { + use crate::fs::File; + + // NOTE: If `from` is a directory, this call should fail due to vexFileOpen* returning null. + let mut reader = File::open(from)?; + let mut writer = File::create(to)?; + + io::copy(&mut reader, &mut writer) +} + +fn map_fresult(fresult: vex_sdk::FRESULT) -> io::Result<()> { + // VEX uses a derivative of FatFs (Xilinx's xilffs library) for filesystem operations. + match fresult { + vex_sdk::FRESULT::FR_OK => Ok(()), + vex_sdk::FRESULT::FR_DISK_ERR => Err(io::const_error!( + io::ErrorKind::Uncategorized, + "internal function reported an unrecoverable hard error", + )), + vex_sdk::FRESULT::FR_INT_ERR => Err(io::const_error!( + io::ErrorKind::Uncategorized, + "internal error in filesystem runtime", + )), + vex_sdk::FRESULT::FR_NOT_READY => Err(io::const_error!( + io::ErrorKind::Uncategorized, + "the storage device could not be prepared to work", + )), + vex_sdk::FRESULT::FR_NO_FILE => Err(io::const_error!( + io::ErrorKind::NotFound, + "could not find the file in the directory" + )), + vex_sdk::FRESULT::FR_NO_PATH => Err(io::const_error!( + io::ErrorKind::NotFound, + "a directory in the path name could not be found", + )), + vex_sdk::FRESULT::FR_INVALID_NAME => Err(io::const_error!( + io::ErrorKind::InvalidInput, + "the given string is invalid as a path name", + )), + vex_sdk::FRESULT::FR_DENIED => Err(io::const_error!( + io::ErrorKind::PermissionDenied, + "the required access for this operation was denied", + )), + vex_sdk::FRESULT::FR_EXIST => Err(io::const_error!( + io::ErrorKind::AlreadyExists, + "an object with the same name already exists in the directory", + )), + vex_sdk::FRESULT::FR_INVALID_OBJECT => Err(io::const_error!( + io::ErrorKind::Uncategorized, + "invalid or null file/directory object", + )), + vex_sdk::FRESULT::FR_WRITE_PROTECTED => Err(io::const_error!( + io::ErrorKind::PermissionDenied, + "a write operation was performed on write-protected media", + )), + vex_sdk::FRESULT::FR_INVALID_DRIVE => Err(io::const_error!( + io::ErrorKind::InvalidInput, + "an invalid drive number was specified in the path name", + )), + vex_sdk::FRESULT::FR_NOT_ENABLED => Err(io::const_error!( + io::ErrorKind::Uncategorized, + "work area for the logical drive has not been registered", + )), + vex_sdk::FRESULT::FR_NO_FILESYSTEM => Err(io::const_error!( + io::ErrorKind::Uncategorized, + "valid FAT volume could not be found on the drive", + )), + vex_sdk::FRESULT::FR_MKFS_ABORTED => Err(io::const_error!( + io::ErrorKind::Uncategorized, + "failed to create filesystem volume" + )), + vex_sdk::FRESULT::FR_TIMEOUT => Err(io::const_error!( + io::ErrorKind::TimedOut, + "the function was canceled due to a timeout of thread-safe control", + )), + vex_sdk::FRESULT::FR_LOCKED => Err(io::const_error!( + io::ErrorKind::Uncategorized, + "the operation to the object was rejected by file sharing control", + )), + vex_sdk::FRESULT::FR_NOT_ENOUGH_CORE => { + Err(io::const_error!(io::ErrorKind::OutOfMemory, "not enough memory for the operation")) + } + vex_sdk::FRESULT::FR_TOO_MANY_OPEN_FILES => Err(io::const_error!( + io::ErrorKind::Uncategorized, + "maximum number of open files has been reached", + )), + vex_sdk::FRESULT::FR_INVALID_PARAMETER => { + Err(io::const_error!(io::ErrorKind::InvalidInput, "a given parameter was invalid")) + } + _ => unreachable!(), // C-style enum + } +} diff --git a/library/std/src/sys/pal/mod.rs b/library/std/src/sys/pal/mod.rs index 513121c6d30..dd5e83ee570 100644 --- a/library/std/src/sys/pal/mod.rs +++ b/library/std/src/sys/pal/mod.rs @@ -45,6 +45,10 @@ cfg_select! { mod trusty; pub use self::trusty::*; } + target_os = "vexos" => { + mod vexos; + pub use self::vexos::*; + } all(target_os = "wasi", target_env = "p2") => { mod wasip2; pub use self::wasip2::*; diff --git a/library/std/src/sys/pal/unix/stack_overflow.rs b/library/std/src/sys/pal/unix/stack_overflow.rs index 0d2100d66bc..51463eef5b7 100644 --- a/library/std/src/sys/pal/unix/stack_overflow.rs +++ b/library/std/src/sys/pal/unix/stack_overflow.rs @@ -72,7 +72,7 @@ mod imp { use crate::sync::OnceLock; use crate::sync::atomic::{Atomic, AtomicBool, AtomicPtr, AtomicUsize, Ordering}; use crate::sys::pal::unix::os; - use crate::{io, mem, panic, ptr}; + use crate::{io, mem, ptr}; // Signal handler for the SIGSEGV and SIGBUS handlers. We've got guard pages // (unmapped pages) at the end of every thread's stack, so if a thread ends diff --git a/library/std/src/sys/pal/vexos/mod.rs b/library/std/src/sys/pal/vexos/mod.rs new file mode 100644 index 00000000000..61a34b0f68a --- /dev/null +++ b/library/std/src/sys/pal/vexos/mod.rs @@ -0,0 +1,80 @@ +#[path = "../unsupported/os.rs"] +pub mod os; +#[path = "../unsupported/pipe.rs"] +pub mod pipe; +pub mod time; + +#[expect(dead_code)] +#[path = "../unsupported/common.rs"] +mod unsupported_common; + +pub use unsupported_common::{ + decode_error_kind, init, is_interrupted, unsupported, unsupported_err, +}; + +use crate::arch::global_asm; +use crate::ptr; +use crate::sys::stdio; +use crate::time::{Duration, Instant}; + +global_asm!( + r#" + .section .boot, "ax" + .global _boot + + _boot: + ldr sp, =__stack_top @ Set up the user stack. + b _start @ Jump to the Rust entrypoint. + "# +); + +#[cfg(not(test))] +#[unsafe(no_mangle)] +pub unsafe extern "C" fn _start() -> ! { + unsafe extern "C" { + static mut __bss_start: u8; + static mut __bss_end: u8; + + fn main() -> i32; + } + + // Clear the .bss (uninitialized statics) section by filling it with zeroes. + // This is required, since the compiler assumes it will be zeroed on first access. + ptr::write_bytes( + &raw mut __bss_start, + 0, + (&raw mut __bss_end).offset_from_unsigned(&raw mut __bss_start), + ); + + main(); + + cleanup(); + abort_internal() +} + +// SAFETY: must be called only once during runtime cleanup. +// NOTE: this is not guaranteed to run, for example when the program aborts. +pub unsafe fn cleanup() { + let exit_time = Instant::now(); + const FLUSH_TIMEOUT: Duration = Duration::from_millis(15); + + // Force the serial buffer to flush + while exit_time.elapsed() < FLUSH_TIMEOUT { + vex_sdk::vexTasksRun(); + + // If the buffer has been fully flushed, exit the loop + if vex_sdk::vexSerialWriteFree(stdio::STDIO_CHANNEL) == (stdio::STDOUT_BUF_SIZE as i32) { + break; + } + } +} + +pub fn abort_internal() -> ! { + unsafe { + vex_sdk::vexSystemExitRequest(); + + loop { + vex_sdk::vexTasksRun(); + } + } +} diff --git a/library/std/src/sys/pal/vexos/time.rs b/library/std/src/sys/pal/vexos/time.rs new file mode 100644 index 00000000000..f95d96cd27a --- /dev/null +++ b/library/std/src/sys/pal/vexos/time.rs @@ -0,0 +1,28 @@ +use crate::time::Duration; + +#[expect(dead_code)] +#[path = "../unsupported/time.rs"] +mod unsupported_time; +pub use unsupported_time::{SystemTime, UNIX_EPOCH}; + +#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)] +pub struct Instant(Duration); + +impl Instant { + pub fn now() -> Instant { + let micros = unsafe { vex_sdk::vexSystemHighResTimeGet() }; + Self(Duration::from_micros(micros)) + } + + pub fn checked_sub_instant(&self, other: &Instant) -> Option<Duration> { + self.0.checked_sub(other.0) + } + + pub fn checked_add_duration(&self, other: &Duration) -> Option<Instant> { + Some(Instant(self.0.checked_add(*other)?)) + } + + pub fn checked_sub_duration(&self, other: &Duration) -> Option<Instant> { + Some(Instant(self.0.checked_sub(*other)?)) + } +} diff --git a/library/std/src/sys/random/mod.rs b/library/std/src/sys/random/mod.rs index 1e0eec07b50..3c5a4c82a9f 100644 --- a/library/std/src/sys/random/mod.rs +++ b/library/std/src/sys/random/mod.rs @@ -101,6 +101,7 @@ cfg_select! { any( all(target_family = "wasm", target_os = "unknown"), target_os = "xous", + target_os = "vexos", ) => { // FIXME: finally remove std support for wasm32-unknown-unknown // FIXME: add random data generation to xous @@ -116,6 +117,7 @@ cfg_select! { all(target_family = "wasm", target_os = "unknown"), all(target_os = "wasi", target_env = "p2"), target_os = "xous", + target_os = "vexos", )))] pub fn hashmap_random_keys() -> (u64, u64) { let mut buf = [0; 16]; diff --git a/library/std/src/sys/stdio/mod.rs b/library/std/src/sys/stdio/mod.rs index 7436e4d9de4..404ac877926 100644 --- a/library/std/src/sys/stdio/mod.rs +++ b/library/std/src/sys/stdio/mod.rs @@ -29,6 +29,10 @@ cfg_select! { mod uefi; pub use uefi::*; } + target_os = "vexos" => { + mod vexos; + pub use vexos::*; + } all(target_os = "wasi", target_env = "p1") => { mod wasip1; pub use wasip1::*; diff --git a/library/std/src/sys/stdio/vexos.rs b/library/std/src/sys/stdio/vexos.rs new file mode 100644 index 00000000000..9a391feb7a8 --- /dev/null +++ b/library/std/src/sys/stdio/vexos.rs @@ -0,0 +1,100 @@ +use crate::io; + +pub struct Stdin; +pub struct Stdout; +pub type Stderr = Stdout; + +pub const STDIO_CHANNEL: u32 = 1; + +impl Stdin { + pub const fn new() -> Stdin { + Stdin + } +} + +impl io::Read for Stdin { + fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> { + let mut count = 0; + + for out_byte in buf.iter_mut() { + let byte = unsafe { vex_sdk::vexSerialReadChar(STDIO_CHANNEL) }; + if byte < 0 { + break; + } + + *out_byte = byte as u8; + count += 1; + } + + Ok(count) + } +} + +impl Stdout { + pub const fn new() -> Stdout { + Stdout + } +} + +impl io::Write for Stdout { + fn write(&mut self, buf: &[u8]) -> io::Result<usize> { + let mut written = 0; + + // HACK: VEXos holds an internal ringbuffer for serial writes that is flushed to USB1 + // roughly every millisecond by `vexTasksRun`. For writes larger than 2048 bytes, we + // must block until that buffer is flushed to USB1 before writing the rest of `buf`. + // + // This is fairly nonstandard for a `write` implementation, but it avoids a guaranteed + // recursive panic when using macros such as `print!` to write large amounts of data + // (buf.len() > 2048) to stdout at once. + for chunk in buf.chunks(STDOUT_BUF_SIZE) { + if unsafe { vex_sdk::vexSerialWriteFree(STDIO_CHANNEL) as usize } < chunk.len() { + self.flush().unwrap(); + } + + let count: usize = unsafe { + vex_sdk::vexSerialWriteBuffer(STDIO_CHANNEL, chunk.as_ptr(), chunk.len() as u32) + } + .try_into() + .map_err(|_| { + io::const_error!(io::ErrorKind::Uncategorized, "internal write error occurred") + })?; + + written += count; + + // This is a sanity check to ensure that we don't end up with non-contiguous + // buffer writes. e.g. a chunk gets only partially written, but we continue + // attempting to write the remaining chunks. + // + // In practice, this should never really occur since the previous flush ensures + // enough space in FIFO to write the entire chunk to vexSerialWriteBuffer. + if count != chunk.len() { + break; + } + } + + Ok(written) + } + + fn flush(&mut self) -> io::Result<()> { + // This may block for up to a millisecond. + unsafe { + while (vex_sdk::vexSerialWriteFree(STDIO_CHANNEL) as usize) != STDOUT_BUF_SIZE { + vex_sdk::vexTasksRun(); + } + } + + Ok(()) + } +} + +pub const STDIN_BUF_SIZE: usize = 4096; +pub const STDOUT_BUF_SIZE: usize = 2048; + +pub fn is_ebadf(_err: &io::Error) -> bool { + false +} + +pub fn panic_output() -> Option<impl io::Write> { + Some(Stdout::new()) +} diff --git a/library/std/src/sys/thread/mod.rs b/library/std/src/sys/thread/mod.rs index 6bb7fc1a20e..3bd83dd760a 100644 --- a/library/std/src/sys/thread/mod.rs +++ b/library/std/src/sys/thread/mod.rs @@ -81,6 +81,13 @@ cfg_select! { ))] pub use unsupported::set_name; } + target_os = "vexos" => { + mod vexos; + pub use vexos::{sleep, yield_now}; + #[expect(dead_code)] + mod unsupported; + pub use unsupported::{Thread, available_parallelism, current_os_id, set_name, DEFAULT_MIN_STACK_SIZE}; + } all(target_os = "wasi", target_env = "p1") => { mod wasip1; pub use wasip1::{DEFAULT_MIN_STACK_SIZE, sleep, yield_now}; diff --git a/library/std/src/sys/thread/vexos.rs b/library/std/src/sys/thread/vexos.rs new file mode 100644 index 00000000000..d917dde4d0b --- /dev/null +++ b/library/std/src/sys/thread/vexos.rs @@ -0,0 +1,17 @@ +use crate::time::{Duration, Instant}; + +pub fn yield_now() { + unsafe { + vex_sdk::vexTasksRun(); + } +} + +pub fn sleep(dur: Duration) { + let start = Instant::now(); + + while start.elapsed() < dur { + unsafe { + vex_sdk::vexTasksRun(); + } + } +} diff --git a/library/std/src/sys/thread_local/mod.rs b/library/std/src/sys/thread_local/mod.rs index cff74857c47..d5c795093cf 100644 --- a/library/std/src/sys/thread_local/mod.rs +++ b/library/std/src/sys/thread_local/mod.rs @@ -29,6 +29,7 @@ cfg_select! { target_os = "uefi", target_os = "zkvm", target_os = "trusty", + target_os = "vexos", ) => { mod no_threads; pub use no_threads::{EagerStorage, LazyStorage, thread_local_inner}; @@ -98,6 +99,7 @@ pub(crate) mod guard { target_os = "uefi", target_os = "zkvm", target_os = "trusty", + target_os = "vexos", ) => { pub(crate) fn enable() { // FIXME: Right now there is no concept of "thread exit" on diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py index effd33d288f..8b1775178c9 100644 --- a/src/bootstrap/bootstrap.py +++ b/src/bootstrap/bootstrap.py @@ -596,6 +596,7 @@ class RustBuild(object): self.download_url = ( os.getenv("RUSTUP_DIST_SERVER") or self.stage0_data["dist_server"] ) + self.jobs = self.get_toml("jobs", "build") or "default" self.build = args.build or self.build_triple() @@ -1144,6 +1145,7 @@ class RustBuild(object): args = [ self.cargo(), "build", + "--jobs=" + self.jobs, "--manifest-path", os.path.join(self.rust_root, "src/bootstrap/Cargo.toml"), "-Zroot-dir=" + self.rust_root, diff --git a/src/bootstrap/src/core/build_steps/clippy.rs b/src/bootstrap/src/core/build_steps/clippy.rs index 2083c675e1f..d5b15d79086 100644 --- a/src/bootstrap/src/core/build_steps/clippy.rs +++ b/src/bootstrap/src/core/build_steps/clippy.rs @@ -564,6 +564,7 @@ impl Step for CI { "clippy::same_item_push".into(), "clippy::single_char_add_str".into(), "clippy::to_string_in_format_args".into(), + "clippy::unconditional_recursion".into(), ], forbid: vec![], }; @@ -591,6 +592,7 @@ impl Step for CI { "clippy::same_item_push".into(), "clippy::single_char_add_str".into(), "clippy::to_string_in_format_args".into(), + "clippy::unconditional_recursion".into(), ], forbid: vec![], }; diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs index 14104d7d1d7..884b5750974 100644 --- a/src/bootstrap/src/core/build_steps/compile.rs +++ b/src/bootstrap/src/core/build_steps/compile.rs @@ -895,6 +895,8 @@ impl Step for StartupObjects { fn run(self, builder: &Builder<'_>) -> Vec<(PathBuf, DependencyType)> { let for_compiler = self.compiler; let target = self.target; + // Even though no longer necessary on x86_64, they are kept for now to + // avoid potential issues in downstream crates. if !target.is_windows_gnu() { return vec![]; } @@ -1832,8 +1834,9 @@ impl Step for Sysroot { let sysroot = sysroot_dir(compiler.stage); trace!(stage = ?compiler.stage, ?sysroot); - builder - .verbose(|| println!("Removing sysroot {} to avoid caching bugs", sysroot.display())); + builder.do_if_verbose(|| { + println!("Removing sysroot {} to avoid caching bugs", sysroot.display()) + }); let _ = fs::remove_dir_all(&sysroot); t!(fs::create_dir_all(&sysroot)); @@ -1902,12 +1905,7 @@ impl Step for Sysroot { if !path.parent().is_none_or(|p| p.ends_with(&suffix)) { return true; } - if !filtered_files.iter().all(|f| f != path.file_name().unwrap()) { - builder.verbose_than(1, || println!("ignoring {}", path.display())); - false - } else { - true - } + filtered_files.iter().all(|f| f != path.file_name().unwrap()) }); } @@ -2596,7 +2594,7 @@ pub fn stream_cargo( cmd.arg(arg); } - builder.verbose(|| println!("running: {cmd:?}")); + builder.do_if_verbose(|| println!("running: {cmd:?}")); let streaming_command = cmd.stream_capture_stdout(&builder.config.exec_ctx); diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs index 99a1062109a..b79d2cb413d 100644 --- a/src/bootstrap/src/core/build_steps/dist.rs +++ b/src/bootstrap/src/core/build_steps/dist.rs @@ -2304,7 +2304,7 @@ fn maybe_install_llvm( let mut cmd = command(host_llvm_config); cmd.cached(); cmd.arg("--libfiles"); - builder.verbose(|| println!("running {cmd:?}")); + builder.do_if_verbose(|| println!("running {cmd:?}")); let files = cmd.run_capture_stdout(builder).stdout(); let build_llvm_out = &builder.llvm_out(builder.config.host_target); let target_llvm_out = &builder.llvm_out(target); diff --git a/src/bootstrap/src/core/build_steps/gcc.rs b/src/bootstrap/src/core/build_steps/gcc.rs index 717dea37e9e..17ab8c4e2f4 100644 --- a/src/bootstrap/src/core/build_steps/gcc.rs +++ b/src/bootstrap/src/core/build_steps/gcc.rs @@ -128,7 +128,7 @@ fn try_download_gcc(builder: &Builder<'_>, target: TargetSelection) -> Option<Pa &builder.config, builder.config.rust_info.is_managed_git_subrepository(), ); - builder.verbose(|| { + builder.do_if_verbose(|| { eprintln!("GCC freshness: {source:?}"); }); match source { diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index e7f5879b5f5..ca2731819e7 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -582,11 +582,11 @@ impl Miri { // We re-use the `cargo` from above. cargo.arg("--print-sysroot"); - builder.verbose(|| println!("running: {cargo:?}")); + builder.do_if_verbose(|| println!("running: {cargo:?}")); let stdout = cargo.run_capture_stdout(builder).stdout(); // Output is "<sysroot>\n". let sysroot = stdout.trim_end(); - builder.verbose(|| println!("`cargo miri setup --print-sysroot` said: {sysroot:?}")); + builder.do_if_verbose(|| println!("`cargo miri setup --print-sysroot` said: {sysroot:?}")); PathBuf::from(sysroot) } } @@ -2675,7 +2675,7 @@ fn markdown_test(builder: &Builder<'_>, compiler: Compiler, markdown: &Path) -> return true; } - builder.verbose(|| println!("doc tests for: {}", markdown.display())); + builder.do_if_verbose(|| println!("doc tests for: {}", markdown.display())); let mut cmd = builder.rustdoc_cmd(compiler); builder.add_rust_test_threads(&mut cmd); // allow for unstable options such as new editions diff --git a/src/bootstrap/src/core/builder/cargo.rs b/src/bootstrap/src/core/builder/cargo.rs index ee2bb710674..9fc4ce669c2 100644 --- a/src/bootstrap/src/core/builder/cargo.rs +++ b/src/bootstrap/src/core/builder/cargo.rs @@ -1139,7 +1139,7 @@ impl Builder<'_> { cargo.env("RUSTC_BACKTRACE_ON_ICE", "1"); } - if self.is_verbose_than(1) { + if self.verbosity >= 2 { // This provides very useful logs especially when debugging build cache-related stuff. cargo.env("CARGO_LOG", "cargo::core::compiler::fingerprint=info"); } diff --git a/src/bootstrap/src/core/builder/mod.rs b/src/bootstrap/src/core/builder/mod.rs index 8226b4325b6..049d2647bec 100644 --- a/src/bootstrap/src/core/builder/mod.rs +++ b/src/bootstrap/src/core/builder/mod.rs @@ -545,7 +545,7 @@ impl StepDescription { if !builder.config.skip.is_empty() && !matches!(builder.config.get_dry_run(), DryRun::SelfCheck) { - builder.verbose(|| { + builder.do_if_verbose(|| { println!( "{:?} not skipped for {:?} -- not in {:?}", pathset, self.name, builder.config.skip @@ -947,7 +947,7 @@ impl Step for Libdir { // Sysroot`). if !builder.download_rustc() { let sysroot_target_libdir = sysroot.join(self.target).join("lib"); - builder.verbose(|| { + builder.do_if_verbose(|| { eprintln!( "Removing sysroot {} to avoid caching bugs", sysroot_target_libdir.display() diff --git a/src/bootstrap/src/core/builder/tests.rs b/src/bootstrap/src/core/builder/tests.rs index 229adf71459..4555f0d2091 100644 --- a/src/bootstrap/src/core/builder/tests.rs +++ b/src/bootstrap/src/core/builder/tests.rs @@ -22,13 +22,7 @@ fn configure(cmd: &str, host: &[&str], target: &[&str]) -> Config { } fn configure_with_args(cmd: &[&str], host: &[&str], target: &[&str]) -> Config { - TestCtx::new() - .config(cmd[0]) - .args(&cmd[1..]) - .hosts(host) - .targets(target) - .args(&["--build", TEST_TRIPLE_1]) - .create_config() + TestCtx::new().config(cmd[0]).args(&cmd[1..]).hosts(host).targets(target).create_config() } fn first<A, B>(v: Vec<(A, B)>) -> Vec<A> { @@ -218,18 +212,17 @@ fn prepare_rustc_checkout(ctx: &mut GitCtx) { /// Parses a Config directory from `path`, with the given value of `download_rustc`. fn parse_config_download_rustc_at(path: &Path, download_rustc: &str, ci: bool) -> Config { - Config::parse_inner( - Flags::parse(&[ - "build".to_owned(), - "--dry-run".to_owned(), - "--ci".to_owned(), - if ci { "true" } else { "false" }.to_owned(), - format!("--set=rust.download-rustc='{download_rustc}'"), - "--src".to_owned(), - path.to_str().unwrap().to_owned(), - ]), - |&_| Ok(Default::default()), - ) + TestCtx::new() + .config("build") + .args(&[ + "--ci", + if ci { "true" } else { "false" }, + format!("--set=rust.download-rustc='{download_rustc}'").as_str(), + "--src", + path.to_str().unwrap(), + ]) + .no_override_download_ci_llvm() + .create_config() } mod dist { @@ -237,6 +230,7 @@ mod dist { use super::{Config, TEST_TRIPLE_1, TEST_TRIPLE_2, TEST_TRIPLE_3, first, run_build}; use crate::Flags; + use crate::core::builder::tests::host_target; use crate::core::builder::*; fn configure(host: &[&str], target: &[&str]) -> Config { @@ -245,11 +239,11 @@ mod dist { #[test] fn llvm_out_behaviour() { - let mut config = configure(&[TEST_TRIPLE_1], &[TEST_TRIPLE_2]); + let mut config = configure(&[], &[TEST_TRIPLE_2]); config.llvm_from_ci = true; let build = Build::new(config.clone()); - let target = TargetSelection::from_user(TEST_TRIPLE_1); + let target = TargetSelection::from_user(&host_target()); assert!(build.llvm_out(target).ends_with("ci-llvm")); let target = TargetSelection::from_user(TEST_TRIPLE_2); assert!(build.llvm_out(target).ends_with("llvm")); @@ -314,7 +308,7 @@ mod sysroot_target_dirs { /// cg_gcc tests instead. #[test] fn test_test_compiler() { - let config = configure_with_args(&["test", "compiler"], &[TEST_TRIPLE_1], &[TEST_TRIPLE_1]); + let config = configure_with_args(&["test", "compiler"], &[&host_target()], &[TEST_TRIPLE_1]); let cache = run_build(&config.paths.clone(), config); let compiler = cache.contains::<test::CrateLibrustc>(); @@ -347,7 +341,7 @@ fn test_test_coverage() { // Print each test case so that if one fails, the most recently printed // case is the one that failed. println!("Testing case: {cmd:?}"); - let config = configure_with_args(cmd, &[TEST_TRIPLE_1], &[TEST_TRIPLE_1]); + let config = configure_with_args(cmd, &[], &[TEST_TRIPLE_1]); let mut cache = run_build(&config.paths.clone(), config); let modes = @@ -359,14 +353,7 @@ fn test_test_coverage() { #[test] fn test_prebuilt_llvm_config_path_resolution() { fn configure(config: &str) -> Config { - Config::parse_inner( - Flags::parse(&[ - "build".to_string(), - "--dry-run".to_string(), - "--config=/does/not/exist".to_string(), - ]), - |&_| toml::from_str(&config), - ) + TestCtx::new().config("build").with_default_toml_config(config).create_config() } // Removes Windows disk prefix if present diff --git a/src/bootstrap/src/core/config/config.rs b/src/bootstrap/src/core/config/config.rs index dd2d5a1fd53..6d9e3b54156 100644 --- a/src/bootstrap/src/core/config/config.rs +++ b/src/bootstrap/src/core/config/config.rs @@ -414,14 +414,28 @@ impl Config { // Set config values based on flags. let mut exec_ctx = ExecutionContext::new(flags_verbose, flags_cmd.fail_fast()); exec_ctx.set_dry_run(if flags_dry_run { DryRun::UserSelected } else { DryRun::Disabled }); - let mut src = { + + let default_src_dir = { let manifest_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR")); // Undo `src/bootstrap` manifest_dir.parent().unwrap().parent().unwrap().to_owned() }; + let src = if let Some(s) = compute_src_directory(flags_src, &exec_ctx) { + s + } else { + default_src_dir.clone() + }; - if let Some(src_) = compute_src_directory(flags_src, &exec_ctx) { - src = src_; + #[cfg(test)] + { + if let Some(config_path) = flags_config.as_ref() { + assert!( + !config_path.starts_with(&src), + "Path {config_path:?} should not be inside or equal to src dir {src:?}" + ); + } else { + panic!("During test the config should be explicitly added"); + } } // Now load the TOML config, as soon as possible @@ -630,19 +644,13 @@ impl Config { let llvm_assertions = llvm_assertions.unwrap_or(false); let mut target_config = HashMap::new(); let mut channel = "dev".to_string(); - let out = flags_build_dir.or(build_build_dir.map(PathBuf::from)).unwrap_or_else(|| { - if cfg!(test) { - // Use the build directory of the original x.py invocation, so that we can set `initial_rustc` properly. - Path::new( - &env::var_os("CARGO_TARGET_DIR").expect("cargo test directly is not supported"), - ) - .parent() - .unwrap() - .to_path_buf() - } else { - PathBuf::from("build") - } - }); + + let out = flags_build_dir.or_else(|| build_build_dir.map(PathBuf::from)); + let out = if cfg!(test) { + out.expect("--build-dir has to be specified in tests") + } else { + out.unwrap_or_else(|| PathBuf::from("build")) + }; // NOTE: Bootstrap spawns various commands with different working directories. // To avoid writing to random places on the file system, `config.out` needs to be an absolute path. @@ -653,6 +661,10 @@ impl Config { out }; + let default_stage0_rustc_path = |dir: &Path| { + dir.join(host_target).join("stage0").join("bin").join(exe("rustc", host_target)) + }; + if cfg!(test) { // When configuring bootstrap for tests, make sure to set the rustc and Cargo to the // same ones used to call the tests (if custom ones are not defined in the toml). If we @@ -661,6 +673,22 @@ impl Config { // Cargo in their bootstrap.toml. build_rustc = build_rustc.take().or(std::env::var_os("RUSTC").map(|p| p.into())); build_cargo = build_cargo.take().or(std::env::var_os("CARGO").map(|p| p.into())); + + // If we are running only `cargo test` (and not `x test bootstrap`), which is useful + // e.g. for debugging bootstrap itself, then we won't have RUSTC and CARGO set to the + // proper paths. + // We thus "guess" that the build directory is located at <src>/build, and try to load + // rustc and cargo from there + let is_test_outside_x = std::env::var("CARGO_TARGET_DIR").is_err(); + if is_test_outside_x && build_rustc.is_none() { + let stage0_rustc = default_stage0_rustc_path(&default_src_dir.join("build")); + assert!( + stage0_rustc.exists(), + "Trying to run cargo test without having a stage0 rustc available in {}", + stage0_rustc.display() + ); + build_rustc = Some(stage0_rustc); + } } if !flags_skip_stage0_validation { @@ -694,7 +722,7 @@ impl Config { let initial_rustc = build_rustc.unwrap_or_else(|| { download_beta_toolchain(&dwn_ctx, &out); - out.join(host_target).join("stage0").join("bin").join(exe("rustc", host_target)) + default_stage0_rustc_path(&out) }); let initial_sysroot = t!(PathBuf::from_str( @@ -1534,11 +1562,11 @@ impl Config { println!("WARNING: CI rustc has some fields that are no longer supported in bootstrap; download-rustc will be disabled."); println!("HELP: Consider rebasing to a newer commit if available."); return None; - }, + } Err(e) => { eprintln!("ERROR: Failed to parse CI rustc bootstrap.toml: {e}"); exit!(2); - }, + } }; let current_config_toml = Self::get_toml(config_path).unwrap(); @@ -1571,8 +1599,8 @@ impl Config { } /// Runs a function if verbosity is greater than 0 - pub fn verbose(&self, f: impl Fn()) { - self.exec_ctx.verbose(f); + pub fn do_if_verbose(&self, f: impl Fn()) { + self.exec_ctx.do_if_verbose(f); } pub fn any_sanitizers_to_build(&self) -> bool { @@ -2061,7 +2089,7 @@ pub fn download_ci_rustc_commit<'a>( // Look for a version to compare to based on the current commit. // Only commits merged by bors will have CI artifacts. let freshness = check_path_modifications_(dwn_ctx, RUSTC_IF_UNCHANGED_ALLOWED_PATHS); - dwn_ctx.exec_ctx.verbose(|| { + dwn_ctx.exec_ctx.do_if_verbose(|| { eprintln!("rustc freshness: {freshness:?}"); }); match freshness { diff --git a/src/bootstrap/src/core/config/tests.rs b/src/bootstrap/src/core/config/tests.rs index e93525fbd09..4f2df76a156 100644 --- a/src/bootstrap/src/core/config/tests.rs +++ b/src/bootstrap/src/core/config/tests.rs @@ -14,17 +14,15 @@ use super::toml::change_id::ChangeIdWrapper; use super::{Config, RUSTC_IF_UNCHANGED_ALLOWED_PATHS}; use crate::ChangeId; use crate::core::build_steps::clippy::{LintConfig, get_clippy_rules_in_order}; -use crate::core::build_steps::llvm; use crate::core::build_steps::llvm::LLVM_INVALIDATION_PATHS; +use crate::core::build_steps::{llvm, test}; use crate::core::config::toml::TomlConfig; use crate::core::config::{CompilerBuiltins, LldMode, StringOrBool, Target, TargetSelection}; +use crate::utils::tests::TestCtx; use crate::utils::tests::git::git_test; pub(crate) fn parse(config: &str) -> Config { - Config::parse_inner( - Flags::parse(&["check".to_string(), "--config=/does/not/exist".to_string()]), - |&_| toml::from_str(&config), - ) + TestCtx::new().config("check").with_default_toml_config(config).create_config() } fn get_toml(file: &Path) -> Result<TomlConfig, toml::de::Error> { @@ -32,28 +30,16 @@ fn get_toml(file: &Path) -> Result<TomlConfig, toml::de::Error> { toml::from_str(&contents).and_then(|table: toml::Value| TomlConfig::deserialize(table)) } -/// Helps with debugging by using consistent test-specific directories instead of -/// random temporary directories. -fn prepare_test_specific_dir() -> PathBuf { - let current = std::thread::current(); - // Replace "::" with "_" to make it safe for directory names on Windows systems - let test_path = current.name().unwrap().replace("::", "_"); - - let testdir = parse("").tempdir().join(test_path); - - // clean up any old test files - let _ = fs::remove_dir_all(&testdir); - let _ = fs::create_dir_all(&testdir); - - testdir -} - #[test] fn download_ci_llvm() { - let config = parse("llvm.download-ci-llvm = false"); + let config = TestCtx::new().config("check").create_config(); assert!(!config.llvm_from_ci); - let if_unchanged_config = parse("llvm.download-ci-llvm = \"if-unchanged\""); + // this doesn't make sense, as we are overriding it later. + let if_unchanged_config = TestCtx::new() + .config("check") + .with_default_toml_config("llvm.download-ci-llvm = \"if-unchanged\"") + .create_config(); if if_unchanged_config.llvm_from_ci && if_unchanged_config.is_running_on_ci { let has_changes = if_unchanged_config.has_changes_from_upstream(LLVM_INVALIDATION_PATHS); @@ -64,62 +50,6 @@ fn download_ci_llvm() { } } -// FIXME(onur-ozkan): extend scope of the test -// refs: -// - https://github.com/rust-lang/rust/issues/109120 -// - https://github.com/rust-lang/rust/pull/109162#issuecomment-1496782487 -#[test] -fn detect_src_and_out() { - fn test(cfg: Config, build_dir: Option<&str>) { - // This will bring absolute form of `src/bootstrap` path - let current_dir = std::env::current_dir().unwrap(); - - // get `src` by moving into project root path - let expected_src = current_dir.ancestors().nth(2).unwrap(); - assert_eq!(&cfg.src, expected_src); - - // Sanity check for `src` - let manifest_dir = Path::new(env!("CARGO_MANIFEST_DIR")); - let expected_src = manifest_dir.ancestors().nth(2).unwrap(); - assert_eq!(&cfg.src, expected_src); - - // test if build-dir was manually given in bootstrap.toml - if let Some(custom_build_dir) = build_dir { - assert_eq!(&cfg.out, Path::new(custom_build_dir)); - } - // test the native bootstrap way - else { - // This should bring output path of bootstrap in absolute form - let cargo_target_dir = env::var_os("CARGO_TARGET_DIR").expect( - "CARGO_TARGET_DIR must been provided for the test environment from bootstrap", - ); - - // Move to `build` from `build/bootstrap` - let expected_out = Path::new(&cargo_target_dir).parent().unwrap(); - assert_eq!(&cfg.out, expected_out); - - let args: Vec<String> = env::args().collect(); - - // Another test for `out` as a sanity check - // - // This will bring something similar to: - // `{build-dir}/bootstrap/debug/deps/bootstrap-c7ee91d5661e2804` - // `{build-dir}` can be anywhere, not just in the rust project directory. - let dep = Path::new(args.first().unwrap()); - let expected_out = dep.ancestors().nth(5).unwrap(); - - assert_eq!(&cfg.out, expected_out); - } - } - - test(parse(""), None); - - { - let build_dir = if cfg!(windows) { "C:\\tmp" } else { "/tmp" }; - test(parse(&format!("build.build-dir = '{build_dir}'")), Some(build_dir)); - } -} - #[test] fn clap_verify() { Flags::command().debug_assert(); @@ -127,54 +57,54 @@ fn clap_verify() { #[test] fn override_toml() { - let config = Config::parse_inner( - Flags::parse(&[ - "check".to_owned(), - "--config=/does/not/exist".to_owned(), - "--set=change-id=1".to_owned(), - "--set=rust.lto=fat".to_owned(), - "--set=rust.deny-warnings=false".to_owned(), - "--set=build.optimized-compiler-builtins=true".to_owned(), - "--set=build.gdb=\"bar\"".to_owned(), - "--set=build.tools=[\"cargo\"]".to_owned(), - "--set=llvm.build-config={\"foo\" = \"bar\"}".to_owned(), - "--set=target.x86_64-unknown-linux-gnu.runner=bar".to_owned(), - "--set=target.x86_64-unknown-linux-gnu.rpath=false".to_owned(), - "--set=target.aarch64-unknown-linux-gnu.sanitizers=false".to_owned(), - "--set=target.aarch64-apple-darwin.runner=apple".to_owned(), - "--set=target.aarch64-apple-darwin.optimized-compiler-builtins=false".to_owned(), - ]), - |&_| { - toml::from_str( - r#" -change-id = 0 -[rust] -lto = "off" -deny-warnings = true -download-rustc=false - -[build] -gdb = "foo" -tools = [] - -[llvm] -download-ci-llvm = false -build-config = {} - -[target.aarch64-unknown-linux-gnu] -sanitizers = true -rpath = true -runner = "aarch64-runner" - -[target.x86_64-unknown-linux-gnu] -sanitizers = true -rpath = true -runner = "x86_64-runner" - - "#, - ) - }, - ); + let config_toml: &str = r#" + change-id = 0 + + [rust] + lto = "off" + deny-warnings = true + download-rustc = false + + [build] + gdb = "foo" + tools = [] + + [llvm] + download-ci-llvm = false + build-config = {} + + [target.aarch64-unknown-linux-gnu] + sanitizers = true + rpath = true + runner = "aarch64-runner" + + [target.x86_64-unknown-linux-gnu] + sanitizers = true + rpath = true + runner = "x86_64-runner" + "#; + + let args = [ + "--set=change-id=1", + "--set=rust.lto=fat", + "--set=rust.deny-warnings=false", + "--set=build.optimized-compiler-builtins=true", + "--set=build.gdb=\"bar\"", + "--set=build.tools=[\"cargo\"]", + "--set=llvm.build-config={\"foo\" = \"bar\"}", + "--set=target.x86_64-unknown-linux-gnu.runner=bar", + "--set=target.x86_64-unknown-linux-gnu.rpath=false", + "--set=target.aarch64-unknown-linux-gnu.sanitizers=false", + "--set=target.aarch64-apple-darwin.runner=apple", + "--set=target.aarch64-apple-darwin.optimized-compiler-builtins=false", + ]; + + let config = TestCtx::new() + .config("check") + .with_default_toml_config(config_toml) + .args(&args) + .create_config(); + assert_eq!(config.change_id, Some(ChangeId::Id(1)), "setting top-level value"); assert_eq!( config.rust_lto, @@ -233,33 +163,26 @@ runner = "x86_64-runner" #[test] #[should_panic] fn override_toml_duplicate() { - Config::parse_inner( - Flags::parse(&[ - "check".to_owned(), - "--config=/does/not/exist".to_string(), - "--set=change-id=1".to_owned(), - "--set=change-id=2".to_owned(), - ]), - |&_| toml::from_str("change-id = 0"), - ); + TestCtx::new() + .config("check") + .with_default_toml_config("change-id = 0") + .arg("--set") + .arg("change-id=1") + .arg("--set") + .arg("change-id=2") + .create_config(); } #[test] fn profile_user_dist() { - fn get_toml(file: &Path) -> Result<TomlConfig, toml::de::Error> { - let contents = if file.ends_with("bootstrap.toml") - || file.ends_with("config.toml") - || env::var_os("RUST_BOOTSTRAP_CONFIG").is_some() - { - "profile = \"user\"".to_owned() - } else { - assert!(file.ends_with("config.dist.toml") || file.ends_with("bootstrap.dist.toml")); - std::fs::read_to_string(file).unwrap() - }; - - toml::from_str(&contents).and_then(|table: toml::Value| TomlConfig::deserialize(table)) - } - Config::parse_inner(Flags::parse(&["check".to_owned()]), get_toml); + TestCtx::new() + .config("check") + .with_default_toml_config( + r#" + profile = "user" + "#, + ) + .create_config(); } #[test] @@ -277,12 +200,15 @@ fn rust_optimize() { #[test] #[should_panic] fn invalid_rust_optimize() { - parse("rust.optimize = \"a\""); + TestCtx::new() + .config("check") + .with_default_toml_config("rust.optimize = \"a\"") + .create_config(); } #[test] fn verify_file_integrity() { - let config = parse(""); + let config = TestCtx::new().config("check").no_dry_run().create_config(); let tempfile = config.tempdir().join(".tmp-test-file"); File::create(&tempfile).unwrap().write_all(b"dummy value").unwrap(); @@ -292,8 +218,6 @@ fn verify_file_integrity() { config .verify(&tempfile, "7e255dd9542648a8779268a0f268b891a198e9828e860ed23f826440e786eae5") ); - - remove_file(tempfile).unwrap(); } #[test] @@ -324,22 +248,23 @@ fn parse_change_id_with_unknown_field() { #[test] fn order_of_clippy_rules() { - let args = vec![ - "clippy".to_string(), - "--fix".to_string(), - "--allow-dirty".to_string(), - "--allow-staged".to_string(), - "-Aclippy:all".to_string(), - "-Wclippy::style".to_string(), - "-Aclippy::foo1".to_string(), - "-Aclippy::foo2".to_string(), + let args = [ + "clippy", + "--fix", + "--allow-dirty", + "--allow-staged", + "-Aclippy:all", + "-Wclippy::style", + "-Aclippy::foo1", + "-Aclippy::foo2", ]; - let config = Config::parse(Flags::parse(&args)); + let config = TestCtx::new().config(&args[0]).args(&args[1..]).create_config(); let actual = match config.cmd.clone() { crate::Subcommand::Clippy { allow, deny, warn, forbid, .. } => { let cfg = LintConfig { allow, deny, warn, forbid }; - get_clippy_rules_in_order(&args, &cfg) + let args_vec: Vec<String> = args.iter().map(|s| s.to_string()).collect(); + get_clippy_rules_in_order(&args_vec, &cfg) } _ => panic!("invalid subcommand"), }; @@ -356,14 +281,14 @@ fn order_of_clippy_rules() { #[test] fn clippy_rule_separate_prefix() { - let args = - vec!["clippy".to_string(), "-A clippy:all".to_string(), "-W clippy::style".to_string()]; - let config = Config::parse(Flags::parse(&args)); + let args = ["clippy", "-A clippy:all", "-W clippy::style"]; + let config = TestCtx::new().config(&args[0]).args(&args[1..]).create_config(); let actual = match config.cmd.clone() { crate::Subcommand::Clippy { allow, deny, warn, forbid, .. } => { let cfg = LintConfig { allow, deny, warn, forbid }; - get_clippy_rules_in_order(&args, &cfg) + let args_vec: Vec<String> = args.iter().map(|s| s.to_string()).collect(); + get_clippy_rules_in_order(&args_vec, &cfg) } _ => panic!("invalid subcommand"), }; @@ -374,16 +299,20 @@ fn clippy_rule_separate_prefix() { #[test] fn verbose_tests_default_value() { - let config = Config::parse(Flags::parse(&["build".into(), "compiler".into()])); + let config = TestCtx::new().config("build").args(&["compiler".into()]).create_config(); assert_eq!(config.verbose_tests, false); - let config = Config::parse(Flags::parse(&["build".into(), "compiler".into(), "-v".into()])); + let config = + TestCtx::new().config("build").args(&["compiler".into(), "-v".into()]).create_config(); assert_eq!(config.verbose_tests, true); } #[test] fn parse_rust_std_features() { - let config = parse("rust.std-features = [\"panic-unwind\", \"backtrace\"]"); + let config = TestCtx::new() + .config("check") + .with_default_toml_config("rust.std-features = [\"panic-unwind\", \"backtrace\"]") + .create_config(); let expected_features: BTreeSet<String> = ["panic-unwind", "backtrace"].into_iter().map(|s| s.to_string()).collect(); assert_eq!(config.rust_std_features, expected_features); @@ -391,7 +320,10 @@ fn parse_rust_std_features() { #[test] fn parse_rust_std_features_empty() { - let config = parse("rust.std-features = []"); + let config = TestCtx::new() + .config("check") + .with_default_toml_config("rust.std-features = []") + .create_config(); let expected_features: BTreeSet<String> = BTreeSet::new(); assert_eq!(config.rust_std_features, expected_features); } @@ -399,70 +331,65 @@ fn parse_rust_std_features_empty() { #[test] #[should_panic] fn parse_rust_std_features_invalid() { - parse("rust.std-features = \"backtrace\""); + TestCtx::new() + .config("check") + .with_default_toml_config("rust.std-features = \"backtrace\"") + .create_config(); } #[test] fn parse_jobs() { - assert_eq!(parse("build.jobs = 1").jobs, Some(1)); + assert_eq!( + TestCtx::new() + .config("check") + .with_default_toml_config("build.jobs = 1") + .create_config() + .jobs, + Some(1) + ); } #[test] fn jobs_precedence() { // `--jobs` should take precedence over using `--set build.jobs`. - let config = Config::parse_inner( - Flags::parse(&[ - "check".to_owned(), - "--config=/does/not/exist".to_owned(), - "--jobs=67890".to_owned(), - "--set=build.jobs=12345".to_owned(), - ]), - |&_| toml::from_str(""), - ); + let config = TestCtx::new() + .config("check") + .args(&["--jobs=67890", "--set=build.jobs=12345"]) + .create_config(); assert_eq!(config.jobs, Some(67890)); // `--set build.jobs` should take precedence over `bootstrap.toml`. - let config = Config::parse_inner( - Flags::parse(&[ - "check".to_owned(), - "--config=/does/not/exist".to_owned(), - "--set=build.jobs=12345".to_owned(), - ]), - |&_| { - toml::from_str( - r#" - [build] - jobs = 67890 - "#, - ) - }, - ); + let config = TestCtx::new() + .config("check") + .args(&["--set=build.jobs=12345"]) + .with_default_toml_config( + r#" + [build] + jobs = 67890 + "#, + ) + .create_config(); + assert_eq!(config.jobs, Some(12345)); // `--jobs` > `--set build.jobs` > `bootstrap.toml` - let config = Config::parse_inner( - Flags::parse(&[ - "check".to_owned(), - "--jobs=123".to_owned(), - "--config=/does/not/exist".to_owned(), - "--set=build.jobs=456".to_owned(), - ]), - |&_| { - toml::from_str( - r#" - [build] - jobs = 789 - "#, - ) - }, - ); + let config = TestCtx::new() + .config("check") + .args(&["--jobs=123", "--set=build.jobs=456"]) + .with_default_toml_config( + r#" + [build] + jobs = 789 + "#, + ) + .create_config(); assert_eq!(config.jobs, Some(123)); } #[test] fn check_rustc_if_unchanged_paths() { - let config = parse(""); + let config = TestCtx::new().config("check").create_config(); let normalised_allowed_paths: Vec<_> = RUSTC_IF_UNCHANGED_ALLOWED_PATHS .iter() .map(|t| { @@ -477,59 +404,42 @@ fn check_rustc_if_unchanged_paths() { #[test] fn test_explicit_stage() { - let config = Config::parse_inner( - Flags::parse(&["check".to_owned(), "--config=/does/not/exist".to_owned()]), - |&_| { - toml::from_str( - r#" + let config = TestCtx::new() + .config("check") + .with_default_toml_config( + r#" [build] test-stage = 1 "#, - ) - }, - ); + ) + .create_config(); assert!(!config.explicit_stage_from_cli); assert!(config.explicit_stage_from_config); assert!(config.is_explicit_stage()); - let config = Config::parse_inner( - Flags::parse(&[ - "check".to_owned(), - "--stage=2".to_owned(), - "--config=/does/not/exist".to_owned(), - ]), - |&_| toml::from_str(""), - ); + let config = TestCtx::new().config("check").stage(2).create_config(); assert!(config.explicit_stage_from_cli); assert!(!config.explicit_stage_from_config); assert!(config.is_explicit_stage()); - let config = Config::parse_inner( - Flags::parse(&[ - "check".to_owned(), - "--stage=2".to_owned(), - "--config=/does/not/exist".to_owned(), - ]), - |&_| { - toml::from_str( - r#" + let config = TestCtx::new() + .config("check") + .stage(2) + .with_default_toml_config( + r#" [build] test-stage = 1 "#, - ) - }, - ); + ) + .create_config(); assert!(config.explicit_stage_from_cli); assert!(config.explicit_stage_from_config); assert!(config.is_explicit_stage()); - let config = Config::parse_inner( - Flags::parse(&["check".to_owned(), "--config=/does/not/exist".to_owned()]), - |&_| toml::from_str(""), - ); + let config = TestCtx::new().config("check").create_config(); assert!(!config.explicit_stage_from_cli); assert!(!config.explicit_stage_from_config); @@ -539,7 +449,10 @@ fn test_explicit_stage() { #[test] fn test_exclude() { let exclude_path = "compiler"; - let config = parse(&format!("build.exclude=[\"{}\"]", exclude_path)); + let config = TestCtx::new() + .config("check") + .with_default_toml_config(&format!("build.exclude=[\"{}\"]", exclude_path)) + .create_config(); let first_excluded = config .skip @@ -553,32 +466,20 @@ fn test_exclude() { #[test] fn test_ci_flag() { - let config = Config::parse_inner(Flags::parse(&["check".into(), "--ci=false".into()]), |&_| { - toml::from_str("") - }); + let config = TestCtx::new().config("check").arg("--ci").arg("false").create_config(); assert!(!config.is_running_on_ci); - let config = Config::parse_inner(Flags::parse(&["check".into(), "--ci=true".into()]), |&_| { - toml::from_str("") - }); + let config = TestCtx::new().config("check").arg("--ci").arg("true").create_config(); assert!(config.is_running_on_ci); - let config = Config::parse_inner(Flags::parse(&["check".into()]), |&_| toml::from_str("")); + let config = TestCtx::new().config("check").create_config(); assert_eq!(config.is_running_on_ci, CiEnv::is_ci()); } #[test] fn test_precedence_of_includes() { - let testdir = prepare_test_specific_dir(); - - let root_config = testdir.join("config.toml"); - let root_config_content = br#" - include = ["./extension.toml"] - - [llvm] - link-jobs = 2 - "#; - File::create(&root_config).unwrap().write_all(root_config_content).unwrap(); + let test_ctx = TestCtx::new(); + let testdir = test_ctx.dir(); let extension = testdir.join("extension.toml"); let extension_content = br#" @@ -599,10 +500,17 @@ fn test_precedence_of_includes() { "#; File::create(extension).unwrap().write_all(extension_content).unwrap(); - let config = Config::parse_inner( - Flags::parse(&["check".to_owned(), format!("--config={}", root_config.to_str().unwrap())]), - get_toml, - ); + let config = test_ctx + .config("check") + .with_default_toml_config( + r#" + include = ["./extension.toml"] + + [llvm] + link-jobs = 2 + "#, + ) + .create_config(); assert_eq!(config.change_id.unwrap(), ChangeId::Id(543)); assert_eq!(config.llvm_link_jobs.unwrap(), 2); @@ -612,36 +520,29 @@ fn test_precedence_of_includes() { #[test] #[should_panic(expected = "Cyclic inclusion detected")] fn test_cyclic_include_direct() { - let testdir = prepare_test_specific_dir(); - - let root_config = testdir.join("config.toml"); - let root_config_content = br#" - include = ["./extension.toml"] - "#; - File::create(&root_config).unwrap().write_all(root_config_content).unwrap(); - + let test_ctx = TestCtx::new(); + let testdir = test_ctx.dir(); let extension = testdir.join("extension.toml"); let extension_content = br#" - include = ["./config.toml"] + include = ["./bootstrap.toml"] "#; File::create(extension).unwrap().write_all(extension_content).unwrap(); - let config = Config::parse_inner( - Flags::parse(&["check".to_owned(), format!("--config={}", root_config.to_str().unwrap())]), - get_toml, - ); + test_ctx + .config("check") + .with_default_toml_config( + r#" + include = ["./extension.toml"] + "#, + ) + .create_config(); } #[test] #[should_panic(expected = "Cyclic inclusion detected")] fn test_cyclic_include_indirect() { - let testdir = prepare_test_specific_dir(); - - let root_config = testdir.join("config.toml"); - let root_config_content = br#" - include = ["./extension.toml"] - "#; - File::create(&root_config).unwrap().write_all(root_config_content).unwrap(); + let test_ctx = TestCtx::new(); + let testdir = test_ctx.dir(); let extension = testdir.join("extension.toml"); let extension_content = br#" @@ -661,43 +562,37 @@ fn test_cyclic_include_indirect() { "#; File::create(extension).unwrap().write_all(extension_content).unwrap(); - let config = Config::parse_inner( - Flags::parse(&["check".to_owned(), format!("--config={}", root_config.to_str().unwrap())]), - get_toml, - ); + test_ctx + .config("check") + .with_default_toml_config( + r#" + include = ["./extension.toml"] + "#, + ) + .create_config(); } #[test] fn test_include_absolute_paths() { - let testdir = prepare_test_specific_dir(); + let test_ctx = TestCtx::new(); + let testdir = test_ctx.dir(); let extension = testdir.join("extension.toml"); File::create(&extension).unwrap().write_all(&[]).unwrap(); - let root_config = testdir.join("config.toml"); let extension_absolute_path = extension.canonicalize().unwrap().to_str().unwrap().replace('\\', r"\\"); let root_config_content = format!(r#"include = ["{}"]"#, extension_absolute_path); - File::create(&root_config).unwrap().write_all(root_config_content.as_bytes()).unwrap(); - - let config = Config::parse_inner( - Flags::parse(&["check".to_owned(), format!("--config={}", root_config.to_str().unwrap())]), - get_toml, - ); + test_ctx.config("check").with_default_toml_config(&root_config_content).create_config(); } #[test] fn test_include_relative_paths() { - let testdir = prepare_test_specific_dir(); + let test_ctx = TestCtx::new(); + let testdir = test_ctx.dir(); let _ = fs::create_dir_all(&testdir.join("subdir/another_subdir")); - let root_config = testdir.join("config.toml"); - let root_config_content = br#" - include = ["./subdir/extension.toml"] - "#; - File::create(&root_config).unwrap().write_all(root_config_content).unwrap(); - let extension = testdir.join("subdir/extension.toml"); let extension_content = br#" include = ["../extension2.toml"] @@ -719,22 +614,20 @@ fn test_include_relative_paths() { let extension = testdir.join("extension4.toml"); File::create(extension).unwrap().write_all(&[]).unwrap(); - let config = Config::parse_inner( - Flags::parse(&["check".to_owned(), format!("--config={}", root_config.to_str().unwrap())]), - get_toml, - ); + test_ctx + .config("check") + .with_default_toml_config( + r#" + include = ["./subdir/extension.toml"] + "#, + ) + .create_config(); } #[test] fn test_include_precedence_over_profile() { - let testdir = prepare_test_specific_dir(); - - let root_config = testdir.join("config.toml"); - let root_config_content = br#" - profile = "dist" - include = ["./extension.toml"] - "#; - File::create(&root_config).unwrap().write_all(root_config_content).unwrap(); + let test_ctx = TestCtx::new(); + let testdir = test_ctx.dir(); let extension = testdir.join("extension.toml"); let extension_content = br#" @@ -743,10 +636,15 @@ fn test_include_precedence_over_profile() { "#; File::create(extension).unwrap().write_all(extension_content).unwrap(); - let config = Config::parse_inner( - Flags::parse(&["check".to_owned(), format!("--config={}", root_config.to_str().unwrap())]), - get_toml, - ); + let config = test_ctx + .config("check") + .with_default_toml_config( + r#" + profile = "dist" + include = ["./extension.toml"] + "#, + ) + .create_config(); // "dist" profile would normally set the channel to "auto-detect", but includes should // override profile settings, so we expect this to be "dev" here. diff --git a/src/bootstrap/src/core/config/toml/mod.rs b/src/bootstrap/src/core/config/toml/mod.rs index 7af22432ef8..f6dc5b67e10 100644 --- a/src/bootstrap/src/core/config/toml/mod.rs +++ b/src/bootstrap/src/core/config/toml/mod.rs @@ -152,10 +152,6 @@ impl Config { } pub(crate) fn get_toml(file: &Path) -> Result<TomlConfig, toml::de::Error> { - #[cfg(test)] - return Ok(TomlConfig::default()); - - #[cfg(not(test))] Self::get_toml_inner(file) } diff --git a/src/bootstrap/src/core/download.rs b/src/bootstrap/src/core/download.rs index 2f3c80559c0..37871f0fe1e 100644 --- a/src/bootstrap/src/core/download.rs +++ b/src/bootstrap/src/core/download.rs @@ -106,7 +106,7 @@ enum DownloadSource { /// Functions that are only ever called once, but named for clarity and to avoid thousand-line functions. impl Config { pub(crate) fn download_clippy(&self) -> PathBuf { - self.verbose(|| println!("downloading stage0 clippy artifacts")); + self.do_if_verbose(|| println!("downloading stage0 clippy artifacts")); let date = &self.stage0_metadata.compiler.date; let version = &self.stage0_metadata.compiler.version; @@ -151,7 +151,9 @@ impl Config { } pub(crate) fn download_ci_rustc(&self, commit: &str) { - self.verbose(|| println!("using downloaded stage2 artifacts from CI (commit {commit})")); + self.do_if_verbose(|| { + println!("using downloaded stage2 artifacts from CI (commit {commit})") + }); let version = self.artifact_version_part(commit); // download-rustc doesn't need its own cargo, it can just use beta's. But it does need the @@ -258,7 +260,7 @@ impl Config { let llvm_root = self.ci_llvm_root(); let llvm_freshness = detect_llvm_freshness(self, self.rust_info.is_managed_git_subrepository()); - self.verbose(|| { + self.do_if_verbose(|| { eprintln!("LLVM freshness: {llvm_freshness:?}"); }); let llvm_sha = match llvm_freshness { @@ -557,7 +559,7 @@ pub(crate) fn download_beta_toolchain<'a>(dwn_ctx: impl AsRef<DownloadContext<'a #[cfg(not(test))] pub(crate) fn download_beta_toolchain<'a>(dwn_ctx: impl AsRef<DownloadContext<'a>>, out: &Path) { let dwn_ctx = dwn_ctx.as_ref(); - dwn_ctx.exec_ctx.verbose(|| { + dwn_ctx.exec_ctx.do_if_verbose(|| { println!("downloading stage0 beta artifacts"); }); @@ -812,7 +814,7 @@ fn download_component<'a>( unpack(dwn_ctx.exec_ctx, &tarball, &bin_root, prefix); return; } else { - dwn_ctx.exec_ctx.verbose(|| { + dwn_ctx.exec_ctx.do_if_verbose(|| { println!( "ignoring cached file {} due to failed verification", tarball.display() @@ -853,7 +855,7 @@ download-rustc = false pub(crate) fn verify(exec_ctx: &ExecutionContext, path: &Path, expected: &str) -> bool { use sha2::Digest; - exec_ctx.verbose(|| { + exec_ctx.do_if_verbose(|| { println!("verifying {}", path.display()); }); @@ -934,7 +936,7 @@ fn unpack(exec_ctx: &ExecutionContext, tarball: &Path, dst: &Path, pattern: &str short_path = short_path.strip_prefix(pattern).unwrap_or(short_path); let dst_path = dst.join(short_path); - exec_ctx.verbose(|| { + exec_ctx.do_if_verbose(|| { println!("extracting {} to {}", original_path.display(), dst.display()); }); @@ -965,7 +967,7 @@ fn download_file<'a>( ) { let dwn_ctx = dwn_ctx.as_ref(); - dwn_ctx.exec_ctx.verbose(|| { + dwn_ctx.exec_ctx.do_if_verbose(|| { println!("download {url}"); }); // Use a temporary file in case we crash while downloading, to avoid a corrupt download in cache/. diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs index e953fe2945e..4f4d35673d5 100644 --- a/src/bootstrap/src/lib.rs +++ b/src/bootstrap/src/lib.rs @@ -415,7 +415,7 @@ macro_rules! forward { } forward! { - verbose(f: impl Fn()), + do_if_verbose(f: impl Fn()), is_verbose() -> bool, create(path: &Path, s: &str), remove(f: &Path), @@ -601,11 +601,11 @@ impl Build { .unwrap() .trim(); if local_release.split('.').take(2).eq(version.split('.').take(2)) { - build.verbose(|| println!("auto-detected local-rebuild {local_release}")); + build.do_if_verbose(|| println!("auto-detected local-rebuild {local_release}")); build.local_rebuild = true; } - build.verbose(|| println!("finding compilers")); + build.do_if_verbose(|| println!("finding compilers")); utils::cc_detect::fill_compilers(&mut build); // When running `setup`, the profile is about to change, so any requirements we have now may // be different on the next invocation. Don't check for them until the next time x.py is @@ -613,7 +613,7 @@ impl Build { // // Similarly, for `setup` we don't actually need submodules or cargo metadata. if !matches!(build.config.cmd, Subcommand::Setup { .. }) { - build.verbose(|| println!("running sanity check")); + build.do_if_verbose(|| println!("running sanity check")); crate::core::sanity::check(&mut build); // Make sure we update these before gathering metadata so we don't get an error about missing @@ -631,7 +631,7 @@ impl Build { // Now, update all existing submodules. build.update_existing_submodules(); - build.verbose(|| println!("learning about cargo")); + build.do_if_verbose(|| println!("learning about cargo")); crate::core::metadata::build(&mut build); } @@ -1087,18 +1087,6 @@ impl Build { }) } - /// Check if verbosity is greater than the `level` - pub fn is_verbose_than(&self, level: usize) -> bool { - self.verbosity > level - } - - /// Runs a function if verbosity is greater than `level`. - fn verbose_than(&self, level: usize, f: impl Fn()) { - if self.is_verbose_than(level) { - f() - } - } - fn info(&self, msg: &str) { match self.config.get_dry_run() { DryRun::SelfCheck => (), @@ -1816,7 +1804,6 @@ impl Build { if self.config.dry_run() { return; } - self.verbose_than(1, || println!("Copy/Link {src:?} to {dst:?}")); if src == dst { return; } @@ -1933,7 +1920,10 @@ impl Build { return; } let dst = dstdir.join(src.file_name().unwrap()); - self.verbose_than(1, || println!("Install {src:?} to {dst:?}")); + + #[cfg(feature = "tracing")] + let _span = trace_io!("install", ?src, ?dst); + t!(fs::create_dir_all(dstdir)); if !src.exists() { panic!("ERROR: File \"{}\" not found!", src.display()); diff --git a/src/bootstrap/src/utils/build_stamp.rs b/src/bootstrap/src/utils/build_stamp.rs index 4c35388a181..5cd68f6d4fe 100644 --- a/src/bootstrap/src/utils/build_stamp.rs +++ b/src/bootstrap/src/utils/build_stamp.rs @@ -112,7 +112,7 @@ pub fn clear_if_dirty(builder: &Builder<'_>, dir: &Path, input: &Path) -> bool { let stamp = BuildStamp::new(dir); let mut cleared = false; if mtime(stamp.path()) < mtime(input) { - builder.verbose(|| println!("Dirty - {}", dir.display())); + builder.do_if_verbose(|| println!("Dirty - {}", dir.display())); let _ = fs::remove_dir_all(dir); cleared = true; } else if stamp.path().exists() { diff --git a/src/bootstrap/src/utils/cc_detect.rs b/src/bootstrap/src/utils/cc_detect.rs index d3926df9650..0662ae304ac 100644 --- a/src/bootstrap/src/utils/cc_detect.rs +++ b/src/bootstrap/src/utils/cc_detect.rs @@ -137,16 +137,16 @@ pub fn fill_target_compiler(build: &mut Build, target: TargetSelection) { build.cxx.insert(target, compiler); } - build.verbose(|| println!("CC_{} = {:?}", target.triple, build.cc(target))); - build.verbose(|| println!("CFLAGS_{} = {cflags:?}", target.triple)); + build.do_if_verbose(|| println!("CC_{} = {:?}", target.triple, build.cc(target))); + build.do_if_verbose(|| println!("CFLAGS_{} = {cflags:?}", target.triple)); if let Ok(cxx) = build.cxx(target) { let mut cxxflags = build.cc_handled_clags(target, CLang::Cxx); cxxflags.extend(build.cc_unhandled_cflags(target, GitRepo::Rustc, CLang::Cxx)); - build.verbose(|| println!("CXX_{} = {cxx:?}", target.triple)); - build.verbose(|| println!("CXXFLAGS_{} = {cxxflags:?}", target.triple)); + build.do_if_verbose(|| println!("CXX_{} = {cxx:?}", target.triple)); + build.do_if_verbose(|| println!("CXXFLAGS_{} = {cxxflags:?}", target.triple)); } if let Some(ar) = ar { - build.verbose(|| println!("AR_{} = {ar:?}", target.triple)); + build.do_if_verbose(|| println!("AR_{} = {ar:?}", target.triple)); build.ar.insert(target, ar); } diff --git a/src/bootstrap/src/utils/exec.rs b/src/bootstrap/src/utils/exec.rs index e09f3086b77..f875e6e1af7 100644 --- a/src/bootstrap/src/utils/exec.rs +++ b/src/bootstrap/src/utils/exec.rs @@ -630,7 +630,7 @@ impl ExecutionContext { &self.dry_run } - pub fn verbose(&self, f: impl Fn()) { + pub fn do_if_verbose(&self, f: impl Fn()) { if self.is_verbose() { f() } @@ -686,7 +686,7 @@ impl ExecutionContext { if let Some(cached_output) = self.command_cache.get(&fingerprint) { command.mark_as_executed(); - self.verbose(|| println!("Cache hit: {command:?}")); + self.do_if_verbose(|| println!("Cache hit: {command:?}")); self.profiler.record_cache_hit(fingerprint); return DeferredCommand { state: CommandState::Cached(cached_output) }; } @@ -713,7 +713,7 @@ impl ExecutionContext { }; } - self.verbose(|| { + self.do_if_verbose(|| { println!("running: {command:?} (created at {created_at}, executed at {executed_at})") }); diff --git a/src/bootstrap/src/utils/helpers/tests.rs b/src/bootstrap/src/utils/helpers/tests.rs index 9030ca2820a..676fe6cbd5f 100644 --- a/src/bootstrap/src/utils/helpers/tests.rs +++ b/src/bootstrap/src/utils/helpers/tests.rs @@ -6,6 +6,7 @@ use crate::utils::helpers::{ check_cfg_arg, extract_beta_rev, hex_encode, make, set_file_times, submodule_path_of, symlink_dir, }; +use crate::utils::tests::TestCtx; use crate::{Config, Flags}; #[test] @@ -59,8 +60,7 @@ fn test_check_cfg_arg() { #[test] fn test_symlink_dir() { - let config = - Config::parse(Flags::parse(&["check".to_owned(), "--config=/does/not/exist".to_owned()])); + let config = TestCtx::new().config("check").no_dry_run().create_config(); let tempdir = config.tempdir().join(".tmp-dir"); let link_path = config.tempdir().join(".tmp-link"); @@ -80,8 +80,7 @@ fn test_symlink_dir() { #[test] fn test_set_file_times_sanity_check() { - let config = - Config::parse(Flags::parse(&["check".to_owned(), "--config=/does/not/exist".to_owned()])); + let config = TestCtx::new().config("check").create_config(); let tempfile = config.tempdir().join(".tmp-file"); { @@ -102,9 +101,7 @@ fn test_set_file_times_sanity_check() { #[test] fn test_submodule_path_of() { - let config = Config::parse_inner(Flags::parse(&["build".into(), "--dry-run".into()]), |&_| { - Ok(Default::default()) - }); + let config = TestCtx::new().config("build").create_config(); let build = crate::Build::new(config.clone()); let builder = crate::core::builder::Builder::new(&build); diff --git a/src/bootstrap/src/utils/render_tests.rs b/src/bootstrap/src/utils/render_tests.rs index 90fd57d976d..e90a7ef4232 100644 --- a/src/bootstrap/src/utils/render_tests.rs +++ b/src/bootstrap/src/utils/render_tests.rs @@ -48,7 +48,7 @@ pub(crate) fn try_run_tests( } fn run_tests(builder: &Builder<'_>, cmd: &mut BootstrapCommand, stream: bool) -> bool { - builder.verbose(|| println!("running: {cmd:?}")); + builder.do_if_verbose(|| println!("running: {cmd:?}")); let Some(mut streaming_command) = cmd.stream_capture_stdout(&builder.config.exec_ctx) else { return true; diff --git a/src/bootstrap/src/utils/tarball.rs b/src/bootstrap/src/utils/tarball.rs index 7b77b212934..079afb7a005 100644 --- a/src/bootstrap/src/utils/tarball.rs +++ b/src/bootstrap/src/utils/tarball.rs @@ -356,7 +356,7 @@ impl<'a> Tarball<'a> { // For `x install` tarball files aren't needed, so we can speed up the process by not producing them. let compression_profile = if self.builder.kind == Kind::Install { - self.builder.verbose(|| { + self.builder.do_if_verbose(|| { println!("Forcing dist.compression-profile = 'no-op' for `x install`.") }); // "no-op" indicates that the rust-installer won't produce compressed tarball sources. diff --git a/src/bootstrap/src/utils/tests/mod.rs b/src/bootstrap/src/utils/tests/mod.rs index 3332187e2a8..764b89086cf 100644 --- a/src/bootstrap/src/utils/tests/mod.rs +++ b/src/bootstrap/src/utils/tests/mod.rs @@ -48,11 +48,20 @@ impl TestCtx { pub struct ConfigBuilder { args: Vec<String>, directory: PathBuf, + override_download_ci_llvm: bool, + dry_run: bool, + explicit_config: bool, } impl ConfigBuilder { fn from_args(args: &[&str], directory: PathBuf) -> Self { - Self { args: args.iter().copied().map(String::from).collect(), directory } + Self { + args: args.iter().copied().map(String::from).collect(), + directory, + override_download_ci_llvm: true, + dry_run: true, + explicit_config: true, + } } pub fn path(mut self, path: &str) -> Self { @@ -98,18 +107,46 @@ impl ConfigBuilder { self } - pub fn create_config(mut self) -> Config { - // Run in dry-check, otherwise the test would be too slow - self.args.push("--dry-run".to_string()); + pub fn with_default_toml_config(mut self, config_toml: &str) -> Self { + let toml_path = self.directory.join("bootstrap.toml"); + std::fs::write(&toml_path, config_toml).unwrap(); + self.explicit_config = false; + self.args.push("--config".to_string()); + self.args.push(toml_path.display().to_string()); + self + } + + pub fn no_override_download_ci_llvm(mut self) -> Self { + self.override_download_ci_llvm = false; + self + } + + pub fn no_dry_run(mut self) -> Self { + self.dry_run = false; + self + } + pub fn create_config(mut self) -> Config { + if self.dry_run { + // Run in dry-check, otherwise the test would be too slow + self.args.push("--dry-run".to_string()); + } // Ignore submodules self.args.push("--set".to_string()); self.args.push("build.submodules=false".to_string()); - // Override any external LLVM set and inhibit CI LLVM; pretend that we're always building - // in-tree LLVM from sources. - self.args.push("--set".to_string()); - self.args.push("llvm.download-ci-llvm=false".to_string()); + if self.override_download_ci_llvm { + // Override any external LLVM set and inhibit CI LLVM; pretend that we're always building + // in-tree LLVM from sources. + self.args.push("--set".to_string()); + self.args.push("llvm.download-ci-llvm=false".to_string()); + } + + // always use the bootstrap toml created in the + // temporary directory and not from the <src> + if self.explicit_config { + self = self.with_default_toml_config(""); + } // Do not mess with the local rustc checkout build directory self.args.push("--build-dir".to_string()); diff --git a/src/doc/rustc/src/SUMMARY.md b/src/doc/rustc/src/SUMMARY.md index e4bf33dd8a0..619eebd15bd 100644 --- a/src/doc/rustc/src/SUMMARY.md +++ b/src/doc/rustc/src/SUMMARY.md @@ -52,7 +52,6 @@ - [aarch64_be-unknown-none-softfloat](platform-support/aarch64_be-unknown-none-softfloat.md) - [aarch64_be-unknown-linux-musl](platform-support/aarch64_be-unknown-linux-musl.md) - [amdgcn-amd-amdhsa](platform-support/amdgcn-amd-amdhsa.md) - - [armeb-unknown-linux-gnueabi](platform-support/armeb-unknown-linux-gnueabi.md) - [arm-none-eabi](platform-support/arm-none-eabi.md) - [armv4t-none-eabi](platform-support/armv4t-none-eabi.md) - [armv5te-none-eabi](platform-support/armv5te-none-eabi.md) @@ -65,12 +64,14 @@ - [thumbv7m-none-eabi](./platform-support/thumbv7m-none-eabi.md) - [thumbv8m.base-none-eabi](./platform-support/thumbv8m.base-none-eabi.md) - [thumbv8m.main-none-eabi\*](./platform-support/thumbv8m.main-none-eabi.md) - - [armv5te-unknown-linux-gnueabi](platform-support/armv5te-unknown-linux-gnueabi.md) + - [arm\*-unknown-linux-\*](./platform-support/arm-linux.md) + - [armeb-unknown-linux-gnueabi](platform-support/armeb-unknown-linux-gnueabi.md) + - [armv5te-unknown-linux-gnueabi](platform-support/armv5te-unknown-linux-gnueabi.md) + - [armv7-unknown-linux-uclibceabi](platform-support/armv7-unknown-linux-uclibceabi.md) + - [armv7-unknown-linux-uclibceabihf](platform-support/armv7-unknown-linux-uclibceabihf.md) - [armv6k-nintendo-3ds](platform-support/armv6k-nintendo-3ds.md) - [armv7-rtems-eabihf](platform-support/armv7-rtems-eabihf.md) - [armv7-sony-vita-newlibeabihf](platform-support/armv7-sony-vita-newlibeabihf.md) - - [armv7-unknown-linux-uclibceabi](platform-support/armv7-unknown-linux-uclibceabi.md) - - [armv7-unknown-linux-uclibceabihf](platform-support/armv7-unknown-linux-uclibceabihf.md) - [armv7a-vex-v5](platform-support/armv7a-vex-v5.md) - [\*-android and \*-androideabi](platform-support/android.md) - [\*-linux-ohos](platform-support/openharmony.md) diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md index 99c8e365f5c..c0882a7a45e 100644 --- a/src/doc/rustc/src/platform-support.md +++ b/src/doc/rustc/src/platform-support.md @@ -156,8 +156,6 @@ target | std | notes `arm-unknown-linux-musleabi` | ✓ | Armv6 Linux with musl 1.2.3 `arm-unknown-linux-musleabihf` | ✓ | Armv6 Linux with musl 1.2.3, hardfloat [`arm64ec-pc-windows-msvc`](platform-support/arm64ec-pc-windows-msvc.md) | ✓ | Arm64EC Windows MSVC -[`armebv7r-none-eabi`](platform-support/armebv7r-none-eabi.md) | * | Bare Armv7-R, Big Endian -[`armebv7r-none-eabihf`](platform-support/armebv7r-none-eabi.md) | * | Bare Armv7-R, Big Endian, hardfloat [`armv5te-unknown-linux-gnueabi`](platform-support/armv5te-unknown-linux-gnueabi.md) | ✓ | Armv5TE Linux (kernel 4.4+, glibc 2.23) `armv5te-unknown-linux-musleabi` | ✓ | Armv5TE Linux with musl 1.2.3 [`armv7-linux-androideabi`](platform-support/android.md) | ✓ | Armv7-A Android @@ -283,6 +281,8 @@ target | std | host | notes [`arm64e-apple-ios`](platform-support/arm64e-apple-ios.md) | ✓ | | ARM64e Apple iOS [`arm64e-apple-tvos`](platform-support/arm64e-apple-tvos.md) | ✓ | | ARM64e Apple tvOS [`armeb-unknown-linux-gnueabi`](platform-support/armeb-unknown-linux-gnueabi.md) | ✓ | ? | Arm BE8 the default Arm big-endian architecture since [Armv6](https://developer.arm.com/documentation/101754/0616/armlink-Reference/armlink-Command-line-Options/--be8?lang=en). +[`armebv7r-none-eabi`](platform-support/armebv7r-none-eabi.md) | * | Bare Armv7-R, Big Endian +[`armebv7r-none-eabihf`](platform-support/armebv7r-none-eabi.md) | * | Bare Armv7-R, Big Endian, hardfloat [`armv4t-none-eabi`](platform-support/armv4t-none-eabi.md) | * | | Bare Armv4T `armv4t-unknown-linux-gnueabi` | ? | | Armv4T Linux [`armv5te-none-eabi`](platform-support/armv5te-none-eabi.md) | * | | Bare Armv5TE diff --git a/src/doc/rustc/src/platform-support/arm-linux.md b/src/doc/rustc/src/platform-support/arm-linux.md new file mode 100644 index 00000000000..5f40743f3d0 --- /dev/null +++ b/src/doc/rustc/src/platform-support/arm-linux.md @@ -0,0 +1,217 @@ +# Arm Linux support in Rust + +The Arm Architecture has been around since the mid-1980s, going through nine +major revisions, many minor revisions, and spanning both 32-bith and 64-bit +architectures. This page covers 32-bit Arm platforms that run some form of +Linux (but not Android). Those targets are: + +* `arm-unknown-linux-gnueabi` +* `arm-unknown-linux-gnueabihf` +* `arm-unknown-linux-musleabi` +* `arm-unknown-linux-musleabihf` +* [`armeb-unknown-linux-gnueabi`](armeb-unknown-linux-gnueabi.md) +* `armv4t-unknown-linux-gnueabi` +* [`armv5te-unknown-linux-gnueabi`](armv5te-unknown-linux-gnueabi.md) +* `armv5te-unknown-linux-musleabi` +* `armv5te-unknown-linux-uclibceabi` +* `armv7-unknown-linux-gnueabi` +* `armv7-unknown-linux-gnueabihf` +* `armv7-unknown-linux-musleabi` +* `armv7-unknown-linux-musleabihf` +* `armv7-unknown-linux-ohos` +* [`armv7-unknown-linux-uclibceabi`](armv7-unknown-linux-uclibceabi.md) +* [`armv7-unknown-linux-uclibceabihf`](armv7-unknown-linux-uclibceabihf.md) +* `thumbv7neon-unknown-linux-gnueabihf` +* `thumbv7neon-unknown-linux-musleabihf` + +Some of these targets have dedicated pages and some do not. This is largely +due to historical accident, or the enthusiasm of the maintainers. This +document attempts to cover all the targets, but only in broad terms. + +To make sense of this list, the architecture and ABI component of the +`<architecture>-unknown-linux-<abi>` tuple will be discussed separately. + +The second part of the tuple is `unknown` because these systems don't come +from any one specific vendor (like `powerpc-ibm-aix` or +`aarch64-apple-darwin`). The third part is `linux`, because this page only +discusses Linux targets. + +## Architecture Component + +* `arm` +* `armeb` +* `armv4t` +* `armv5te` +* `armv7` +* `thumbv7neon` + +The architecture component simply called `arm` corresponds to the Armv6 +architecture - that is, version 6 of the Arm Architecture as defined in +version 6 of the Arm Architecture Reference Manual (the Arm ARM). This was the +last 'legacy' release of the Arm architecture, before they split into +Application, Real-Time and Microcontroller profiles (leading to Armv7-A, +Armv7-R and Armv7-M). Processors that implement the Armv6 architecture include +the ARM1176JZF-S, as found in BCM2835 SoC that powers the Raspberry Pi Zero. +Arm processors are generally fairly backwards compatible, especially for +user-mode code, so code compiled for the `arm` architecture should also work +on newer ARMv7-A systems, or even 64/32-bit Armv8-A systems. + +The `armeb` architecture component specifies an Armv6 processor running in Big +Endian mode (`eb` is for big-endian - the letters are backwards because +engineers used to little-endian systems perceive big-endian numbers to be +written into memory backwards, and they thought it was funnier like that). +Most Arm processors can operate in either little-endian or big-endian mode and +little-endian mode is by far the most common. However, if for whatever reason +you wish to store your Most Significant Bytes first, these targets are +available. They just aren't terribly well tested, or compatible with most +existing pre-compiled Arm libraries. + +Targets that start with `armv4t` are for processors implementing the Armv4T +architecture from 1994. These include the ARM7TDMI, as found in the Nokia 6110 +brick-phone and the Game Boy Advance. The 'T' stands for *Thumb* and indicate +that the processors can execute smaller 16-bit versions of some of the 32-bit +Arm instructions. Because a Thumb is like a small version of an Arm. + +Targets that start with `armv5te` are for processors implementing the Armv5TE +architecture. These are mostly from the ARM9 family, like the ARM946E-S found +in the Nintendo DS. If you are programming an Arm machine from the early +2000s, this might be what you need. + +The `armv7` is arguably a misnomer, and it should be `armv7a`. This is because +it corresponds to the Application profile of Armv7 (i.e. Armv7-A), as opposed +to the Real-Time or Microcontroller profile. Processors implementing this +architecture include the Cortex-A7 and Cortex-A8. + +The `thumbv7neon` component indicates support for a processor that implements +ARMv7-A (the same as `armv7`), it generates Thumb instructions (technically +Thumb-2, also known as the T32 ISA) as opposed to Arm instructions (also known +as the A32 ISA). These instructions are smaller, giving more code per KB of +RAM, but may have a performance penalty if they take two instructions to do +something Arm instructions could do in one. It's a complex trade-off and you +should be doing benchmarks to work out which is better for you, if you +strongly care about code size and/or performance. This component also enables +support for Arm's SIMD extensions, known as Neon. These extensions will +improve performance for certain kinds of repetitive operations. + +## ABI Component + +* `gnueabi` +* `gnueabihf` +* `musleabi` +* `musleabihf` +* `ohos` +* `uclibceabi` +* `uclibceabihf` + +You will need to select the appropriate ABI to match the system you want to be +running this code on. For example, running `eabihf` code on an `eabi` system +will not work correctly. + +The `gnueabi` ABI component indicates support for using the GNU C Library +(glibc), and the Arm Embedded ABI (EABI). The EABI is a replacement for the +original ABI (now called the Old ABI or OABI), and it is the standard ABI for +32-bit Arm systems. With this ABI, function parameters that are `f32` or `f64` +are passed as if they were integers, instead of being passed via in FPU +registers. Generally these targets also disable the use of the FPU entirely, +although that isn't always true. + +The `gnueabihf` ABI component is like `gnueabi`, except that it support the +'hard-float' of the EABI. That is, function parameters that are `f32` or `f64` +are passed in FPU registers. Naturally, this makes the FPU mandatory. + +Most 'desktop' Linux distributions (Debian, Ubuntu, Fedora, etc) use the GNU C +Library and so you should probably select either `gnueabi` or `gnueabihf`, +depending on whether your distribution is using 'soft-float' (EABI) or +'hard-float' (EABIHF). Debian happens to offer +[both](https://wiki.debian.org/ArmEabiPort) +[kinds](https://wiki.debian.org/ArmHardFloatPort). + +The `musleabi` and `musleabihf` ABI components offer support for the [musl C +library](https://musl.libc.org/). This C library can be used to create 'static +binaries' that have no run-time library requirements (a feature that glibc +does not support). There are soft-float (`eabi`) and hard-float (`eabihf`) +variants, as per the `gnu*` targets above. + +The `uclibceabi` and `uclibceabihf` ABI components are for the [uClibc-ng C +library](https://uclibc-ng.org/). This is sometimes used in light-weight +embedded Linux distributions, like those created with +[buildroot](https://www.buildroot.org/). + +## Cross Compilation + +Unfortunately, 32-bit Arm machines are generally not the fastest around, and +they don't have much RAM. This means you are likely to be cross-compiling. + +To do this, you need to give Rust a suitable linker to use - one that knows +the Arm architecture, and more importantly, knows where to find a suitable C +Library to link against. + +To do that, you can add the `linker` property to your `.cargo/config.toml`. +Typically you would refer to a suitable copy of GCC that has built as a +cross-compiler, alongside a C library. + +```toml +[target.arm-unknown-linux-gnueabi] +linker = "arm-linux-gnueabi-gcc" +``` + +On Debian Linux, you could install such a cross-compilation toolchain with +`apt install gcc-arm-linux-gnueabi`. For more exotic combinations, you might +need to build a bespoke version of GCC using [crosstool-ng]. + +[crosstool-ng]: https://github.com/crosstool-ng/crosstool-ng + +Note that for GCC, all 32-bit Arm architectures are handled in the same build +- there are no separate Armv4T or Armv6 builds of GCC. The architecture is +selected with flags, like `-march=armv6`, but they aren't required for the +linker. + +Let's assume we are on some Debian machine, and we want to build a basic Arm +Linux binary for a distribution using the GNU C Library, targeting Armv6 with +a hard-float ABI. Such a binary should work on a Raspberry Pi, for example. +The commands are: + +```bash +sudo apt install -y gcc-arm-linux-gnueabihf +rustup target add arm-unknown-linux-gnueabihf +cargo new --bin armdemo +cd armdemo +mkdir .cargo +cat > .cargo/config.toml << EOF +[target.arm-unknown-linux-gnueabihf] +linker = "arm-linux-gnueabihf-gcc" +EOF +cargo build --target=arm-unknown-linux-gnueabihf +``` + +This will give us our ARM Linux binary for the GNU C Library with a soft-float ABI: + +```console +$ file ./target/arm-unknown-linux-gnueabi/debug/armdemo +./target/arm-unknown-linux-gnueabi/debug/armdemo: ELF 32-bit LSB pie + executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter + /lib/ld-linux.so.3, BuildID[sha1]=dd0b9aa5ae876330fd4e2fcf393850f083ec7fcd, + for GNU/Linux 3.2.0, with debug_info, not stripped +``` + +If you are building C code as part of your Rust project, you may want to +direct `cc-rs` to use an appropriate cross-compiler with the `CROSS_COMPILE` +environment variable. You may also want to set the CFLAGS environment variable +for the target. For example: + +```bash +export CROSS_COMPILE=arm-linux-gnueabi +export CFLAGS_arm_unknown_linux_gnueabi="-march=armv6" +``` + +(Note that the dashes (`-`) turn to underscores (`_`) to form the name of the +CFLAGS environment variable) + +If you are building for a Tier 3 target using `-Zbuild-std` (on Nightly Rust), +you need to set these variables as well: + +```bash +export CXX_arm_unknown_linux_gnueabi=arm-linux-gnueabi-g++ +export CC_arm_unknown_linux_gnueabi=arm-linux-gnueabi-gcc +cargo +nightly build -Zbuild-std --target=arm-unknown-linux-gnueabi +``` diff --git a/src/doc/rustc/src/platform-support/armeb-unknown-linux-gnueabi.md b/src/doc/rustc/src/platform-support/armeb-unknown-linux-gnueabi.md index 7c1c5db7076..cd0623f73a1 100644 --- a/src/doc/rustc/src/platform-support/armeb-unknown-linux-gnueabi.md +++ b/src/doc/rustc/src/platform-support/armeb-unknown-linux-gnueabi.md @@ -3,6 +3,9 @@ Target for cross-compiling Linux user-mode applications targeting the Arm BE8 architecture. +See [`arm-linux`](arm-linux.md) for information applicable to all Arm Linux +targets. + ## Overview BE8 architecture retains the same little-endian ordered code-stream used by conventional little endian Arm systems, however the data accesses are in big-endian. BE8 is used primarily in high-performance networking applications where the ability to read packets in their native "Network Byte Order" is important (many network protocols transmit data in big-endian byte order for their wire formats). diff --git a/src/doc/rustc/src/platform-support/armebv7r-none-eabi.md b/src/doc/rustc/src/platform-support/armebv7r-none-eabi.md index 3e90319c373..d5c676ea9a4 100644 --- a/src/doc/rustc/src/platform-support/armebv7r-none-eabi.md +++ b/src/doc/rustc/src/platform-support/armebv7r-none-eabi.md @@ -1,6 +1,6 @@ # `armebv7r-none-eabi` and `armebv7r-none-eabihf` -* **Tier: 2** +* **Tier: 3** * **Library Support:** core and alloc (bare-metal, `#![no_std]`) Bare-metal target for CPUs in the Armv7-R architecture family running in Big diff --git a/src/doc/rustc/src/platform-support/armv5te-unknown-linux-gnueabi.md b/src/doc/rustc/src/platform-support/armv5te-unknown-linux-gnueabi.md index 0aebbc34d40..a924f476411 100644 --- a/src/doc/rustc/src/platform-support/armv5te-unknown-linux-gnueabi.md +++ b/src/doc/rustc/src/platform-support/armv5te-unknown-linux-gnueabi.md @@ -5,6 +5,9 @@ This target supports Linux programs with glibc on ARMv5TE CPUs without floating-point units. +See [`arm-linux`](arm-linux.md) for information applicable to all Arm Linux +targets. + ## Target maintainers There are currently no formally documented target maintainers. diff --git a/src/doc/rustc/src/platform-support/armv7-unknown-linux-uclibceabi.md b/src/doc/rustc/src/platform-support/armv7-unknown-linux-uclibceabi.md index e553c49589d..4ab0a07090a 100644 --- a/src/doc/rustc/src/platform-support/armv7-unknown-linux-uclibceabi.md +++ b/src/doc/rustc/src/platform-support/armv7-unknown-linux-uclibceabi.md @@ -4,6 +4,9 @@ This target supports Armv7-A softfloat CPUs and uses the uclibc-ng standard library. This is a common configuration on many consumer routers (e.g., Netgear R7000, Asus RT-AC68U). +See [`arm-linux`](arm-linux.md) for information applicable to all Arm Linux +targets. + ## Target maintainers [@lancethepants](https://github.com/lancethepants) diff --git a/src/doc/rustc/src/platform-support/armv7-unknown-linux-uclibceabihf.md b/src/doc/rustc/src/platform-support/armv7-unknown-linux-uclibceabihf.md index 91f3ea886cc..9fb24906b4f 100644 --- a/src/doc/rustc/src/platform-support/armv7-unknown-linux-uclibceabihf.md +++ b/src/doc/rustc/src/platform-support/armv7-unknown-linux-uclibceabihf.md @@ -4,6 +4,9 @@ This tier supports the Armv7-A processor running a Linux kernel and uClibc-ng standard library. It provides full support for rust and the rust standard library. +See [`arm-linux`](arm-linux.md) for information applicable to all Arm Linux +targets. + ## Target Maintainers [@skrap](https://github.com/skrap) diff --git a/src/doc/rustc/src/platform-support/armv7a-vex-v5.md b/src/doc/rustc/src/platform-support/armv7a-vex-v5.md index a7da1b16f7e..3677f8931dd 100644 --- a/src/doc/rustc/src/platform-support/armv7a-vex-v5.md +++ b/src/doc/rustc/src/platform-support/armv7a-vex-v5.md @@ -4,7 +4,7 @@ Allows compiling user programs for the [VEX V5 Brain](https://www.vexrobotics.com/276-4810.html), a microcontroller for educational and competitive robotics. -Rust support for this target is not affiliated with VEX Robotics or IFI. +Rust support for this target is not affiliated with VEX Robotics or IFI, and does not link to any official VEX SDK. ## Target maintainers @@ -17,11 +17,24 @@ This target is maintained by members of the [vexide](https://github.com/vexide) ## Requirements -This target is cross-compiled and currently requires `#![no_std]`. Dynamic linking is unsupported. +This target is cross-compiled. Dynamic linking is unsupported. -When compiling for this target, the "C" calling convention maps to AAPCS with VFP registers (hard float ABI) and the "system" calling convention maps to AAPCS without VFP registers (soft float ABI). +`#![no_std]` crates can be built using `build-std` to build `core` and `panic_abort` and optionally `alloc`. Unwinding panics are not yet supported on this target. -This target generates binaries in the ELF format that may uploaded to the brain with external tools. +`std` has only partial support due platform limitations. Notably: +- `std::process` and `std::net` are unimplemented. `std::thread` only supports sleeping and yielding, as this is a single-threaded environment. +- `std::time` has full support for `Instant`, but no support for `SystemTime`. +- `std::io` has full support for `stdin`/`stdout`/`stderr`. `stdout` and `stderr` both write to to USB channel 1 on this platform and are not differentiated. +- `std::fs` has limited support for reading or writing to files. Directory operations, file deletion, and some file opening features are unsupported and will return errors. +- A global allocator implemented on top of `dlmalloc` is provided. +- Modules that do not need to interact with the OS beyond allocation such as `std::collections`, `std::hash`, `std::future`, `std::sync`, etc are fully supported. +- Random number generation and hashing is insecure, as there is no reliable source of entropy on this platform. + +In order to support some APIs, users are expected to provide a supporting runtime SDK for `libstd` to link against. This library may be provided either by [`vex-sdk-build`](https://github.com/vexide/vex-sdk/tree/main/packages/vex-sdk-build) (which will download an official SDK from VEX) or through an open-source implementation such as [`vex-sdk-jumptable`](https://crates.io/crates/vex-sdk-jumptable). + +When compiling for this target, the "C" calling convention maps to AAPCS with VFP registers (hard float ABI) and the "system" calling convention maps to AAPCS without VFP registers (softfp ABI). + +This target generates binaries in the ELF format that may be uploaded to the brain with external tools. ## Building the target @@ -29,10 +42,7 @@ You can build Rust with support for this target by adding it to the `target` lis ## Building Rust programs -Rust does not yet ship pre-compiled artifacts for this target. To compile for -this target, you will either need to build Rust with the target enabled (see -"Building the target" above), or build your own copy of `core` by using -`build-std` or similar. +Rust does not yet ship pre-compiled artifacts for this target. To compile for this target, you will either need to build Rust with the target enabled (see "Building the target" above), or build your own copy of `core` by using `build-std` or similar. When the compiler builds a binary, an ELF build artifact will be produced. Additional tools are required for this artifact to be recognizable to VEXos as a user program. diff --git a/src/doc/rustc/src/symbol-mangling/v0.md b/src/doc/rustc/src/symbol-mangling/v0.md index 109942518fc..2bcc453a532 100644 --- a/src/doc/rustc/src/symbol-mangling/v0.md +++ b/src/doc/rustc/src/symbol-mangling/v0.md @@ -710,6 +710,7 @@ A *placeholder* may occur in circumstances where a type or const value is not re [mut-ptr-type]: #mut-ptr-type [fn-type]: #fn-type [dyn-trait-type]: #dyn-trait-type +[pattern-type]: #pattern-type > type → \ > *[basic-type]* \ @@ -722,6 +723,7 @@ A *placeholder* may occur in circumstances where a type or const value is not re > | *[mut-ptr-type]* \ > | *[fn-type]* \ > | *[dyn-trait-type]* \ +> | *[pattern-type]* \ > | *[path]* \ > | *[backref]* @@ -830,6 +832,23 @@ Remaining primitives are encoded as a crate production, e.g. `C4f128`. [fn-sig]: #fn-sig [abi]: #abi +* `W` — A [pattern-type][pattern-tpye] `u32 is 0..100`. + > <span id="pattern-type">pattern-type</span> → `W` *[pattern-kind]* + > + > <span id="pattern-kind">pattern-kind</span> → \ + > *[range-pattern-kind]* \ + > *[or-pattern-kind]* + > + > <span id="range-pattern-kind">range-pattern-kind</span> → `R` *[const]* *[const]* + > + > <span id="or-pattern-kind">or-pattern-kind</span> → `O` *[pattern-kind]* `E` + + While or patterns can be nested in theory, in practice this does not happen and they are instead flattened. + + Range patterns have a start and end constant that are both included in the range. + The end must be larger than the start (there can be no wraparound). To emulate wraparound, + you need to use an or pattern of the two ranges to the upper limit and from the lower limit. + * `D` — A [trait object][reference-trait-object] `dyn Trait<Assoc=X> + Send + 'a`. > <span id="dyn-trait-type">dyn-trait-type</span> → `D` *[dyn-bounds]* *[lifetime]* @@ -1139,6 +1158,7 @@ The following is a summary of all of the productions of the symbol grammar. > | *[mut-ptr-type]* \ > | *[fn-type]* \ > | *[dyn-trait-type]* \ +> | *[pattern-type]* \ > | *[path]* \ > | *[backref]* > @@ -1152,6 +1172,14 @@ The following is a summary of all of the productions of the symbol grammar. > [mut-ptr-type] → `O` *[type]* \ > [fn-type] → `F` *[fn-sig]* \ > [dyn-trait-type] → `D` *[dyn-bounds]* *[lifetime]* +> [pattern-type] → `W` *[pattern-kind]* +> +> [pattern-kind] → \ +> *[range-pattern-kind]* \ +> *[or-pattern-kind]* +> +> [range-pattern-kind] -> `R` *[const]* *[const]* \ +> [or-pattern-kind] -> `O` *[pattern-kind]* `E` \ > > [namespace] → *[lower]* | *[upper]* > diff --git a/src/doc/rustdoc/src/advanced-features.md b/src/doc/rustdoc/src/advanced-features.md index c02c9aebe7e..f49edb2ac78 100644 --- a/src/doc/rustdoc/src/advanced-features.md +++ b/src/doc/rustdoc/src/advanced-features.md @@ -89,20 +89,30 @@ https://doc.rust-lang.org/stable/std/?search=%s&go_to_first=true This URL adds the `go_to_first=true` query parameter which can be appended to any `rustdoc` search URL to automatically go to the first result. -## `#[repr(transparent)]`: Documenting the transparent representation +## `#[repr(...)]`: Documenting the representation of a type + +Generally, rustdoc only displays the representation of a given type if none of its variants are +`#[doc(hidden)]` and if all of its fields are public and not `#[doc(hidden)]` since it's likely +not meant to be considered part of the public ABI otherwise. + +Note that there's no way to overwrite that heuristic and force rustdoc to show the representation +regardless. + +### `#[repr(transparent)]` You can read more about `#[repr(transparent)]` itself in the [Rust Reference][repr-trans-ref] and in the [Rustonomicon][repr-trans-nomicon]. Since this representation is only considered part of the public ABI if the single field with non-trivial -size or alignment is public and if the documentation does not state otherwise, Rustdoc helpfully displays -the attribute if and only if the non-1-ZST field is public or at least one field is public in case all -fields are 1-ZST fields. The term *1-ZST* refers to types that are one-aligned and zero-sized. +size or alignment is public and if the documentation does not state otherwise, rustdoc helpfully displays +the attribute if and only if the non-1-ZST field is public and not `#[doc(hidden)]` or +– in case all fields are 1-ZST fields — at least one field is public and not `#[doc(hidden)]`. +The term *1-ZST* refers to types that are one-aligned and zero-sized. It would seem that one can manually hide the attribute with `#[cfg_attr(not(doc), repr(transparent))]` if one wishes to declare the representation as private even if the non-1-ZST field is public. However, due to [current limitations][cross-crate-cfg-doc], this method is not always guaranteed to work. -Therefore, if you would like to do so, you should always write it down in prose independently of whether +Therefore, if you would like to do so, you should always write that down in prose independently of whether you use `cfg_attr` or not. [repr-trans-ref]: https://doc.rust-lang.org/reference/type-layout.html#the-transparent-representation diff --git a/src/doc/rustdoc/src/unstable-features.md b/src/doc/rustdoc/src/unstable-features.md index 25c929a1dba..4327a80cd08 100644 --- a/src/doc/rustdoc/src/unstable-features.md +++ b/src/doc/rustdoc/src/unstable-features.md @@ -739,7 +739,7 @@ This flag can be passed multiple times to nest wrappers. ## Passing arguments to rustc when compiling doctests -You can use the `--doctest-compilation-args` flag if you want to add options when compiling the +You can use the `--doctest-build-arg` flag if you want to add options when compiling the doctest. For example if you have: ```rust,no_run @@ -784,10 +784,10 @@ failures: test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s ``` -But if you can limit the lint level to warning by using `--doctest_compilation_args=--cap-lints=warn`: +But if you can limit the lint level to warning by using `--doctest-build-arg=--cap-lints=warn`: ```console -$ rustdoc --test --doctest_compilation_args=--cap-lints=warn file.rs +$ rustdoc --test --doctest-build-arg=--cap-lints=warn file.rs running 1 test test tests/rustdoc-ui/doctest/rustflags.rs - Bar (line 5) ... ok @@ -795,24 +795,8 @@ test tests/rustdoc-ui/doctest/rustflags.rs - Bar (line 5) ... ok test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s ``` -The parsing of arguments works as follows: if it encounters a `"` or a `'`, it will continue -until it finds the character unescaped (without a prepending `\`). If not inside a string, a -whitespace character will also split arguments. Example: - -```text -"hello 'a'\" ok" how are 'you today?' -``` - -will be split as follows: - -```text -[ - "hello 'a'\" ok", - "how", - "are", - "you today?", -] -``` +In order to pass multiple arguments to the underlying compiler, +pass `--doctest-build-arg ARG` for each argument `ARG`. ## `--generate-macro-expansion`: Generate macros expansion toggles in source code diff --git a/src/doc/rustdoc/src/write-documentation/linking-to-items-by-name.md b/src/doc/rustdoc/src/write-documentation/linking-to-items-by-name.md index 5e785483402..b1495b2575e 100644 --- a/src/doc/rustdoc/src/write-documentation/linking-to-items-by-name.md +++ b/src/doc/rustdoc/src/write-documentation/linking-to-items-by-name.md @@ -90,7 +90,7 @@ fn Foo() {} These prefixes will be stripped when displayed in the documentation, so `[struct@Foo]` will be rendered as `Foo`. The following prefixes are available: `struct`, `enum`, `trait`, `union`, `mod`, `module`, `const`, `constant`, `fn`, `function`, `field`, `variant`, `method`, `derive`, -`type`, `value`, `macro`, `prim` or `primitive`. +`type`, `value`, `macro`, `tyalias`, `typealias`, `prim` or `primitive`. You can also disambiguate for functions by adding `()` after the function name, or for macros by adding `!` after the macro name. The macro `!` can be followed by `()`, `{}`, diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs index bd3f4e9a6f2..ff513c71035 100644 --- a/src/librustdoc/clean/types.rs +++ b/src/librustdoc/clean/types.rs @@ -794,50 +794,6 @@ impl Item { Some(tcx.visibility(def_id)) } - /// Get a list of attributes excluding `#[repr]` to display. - /// - /// Only used by the HTML output-format. - fn attributes_without_repr(&self) -> Vec<String> { - self.attrs - .other_attrs - .iter() - .filter_map(|attr| match attr { - hir::Attribute::Parsed(AttributeKind::LinkSection { name, .. }) => { - Some(format!("#[unsafe(link_section = \"{name}\")]")) - } - hir::Attribute::Parsed(AttributeKind::NoMangle(..)) => { - Some("#[unsafe(no_mangle)]".to_string()) - } - hir::Attribute::Parsed(AttributeKind::ExportName { name, .. }) => { - Some(format!("#[unsafe(export_name = \"{name}\")]")) - } - hir::Attribute::Parsed(AttributeKind::NonExhaustive(..)) => { - Some("#[non_exhaustive]".to_string()) - } - _ => None, - }) - .collect() - } - - /// Get a list of attributes to display on this item. - /// - /// Only used by the HTML output-format. - pub(crate) fn attributes(&self, tcx: TyCtxt<'_>, cache: &Cache) -> Vec<String> { - let mut attrs = self.attributes_without_repr(); - - if let Some(repr_attr) = self.repr(tcx, cache) { - attrs.push(repr_attr); - } - attrs - } - - /// Returns a stringified `#[repr(...)]` attribute. - /// - /// Only used by the HTML output-format. - pub(crate) fn repr(&self, tcx: TyCtxt<'_>, cache: &Cache) -> Option<String> { - repr_attributes(tcx, cache, self.def_id()?, self.type_()) - } - pub fn is_doc_hidden(&self) -> bool { self.attrs.is_doc_hidden() } @@ -847,74 +803,6 @@ impl Item { } } -/// Return a string representing the `#[repr]` attribute if present. -/// -/// Only used by the HTML output-format. -pub(crate) fn repr_attributes( - tcx: TyCtxt<'_>, - cache: &Cache, - def_id: DefId, - item_type: ItemType, -) -> Option<String> { - use rustc_abi::IntegerType; - - if !matches!(item_type, ItemType::Struct | ItemType::Enum | ItemType::Union) { - return None; - } - let adt = tcx.adt_def(def_id); - let repr = adt.repr(); - let mut out = Vec::new(); - if repr.c() { - out.push("C"); - } - if repr.transparent() { - // Render `repr(transparent)` iff the non-1-ZST field is public or at least one - // field is public in case all fields are 1-ZST fields. - let render_transparent = cache.document_private - || adt - .all_fields() - .find(|field| { - let ty = field.ty(tcx, ty::GenericArgs::identity_for_item(tcx, field.did)); - tcx.layout_of(ty::TypingEnv::post_analysis(tcx, field.did).as_query_input(ty)) - .is_ok_and(|layout| !layout.is_1zst()) - }) - .map_or_else( - || adt.all_fields().any(|field| field.vis.is_public()), - |field| field.vis.is_public(), - ); - - if render_transparent { - out.push("transparent"); - } - } - if repr.simd() { - out.push("simd"); - } - let pack_s; - if let Some(pack) = repr.pack { - pack_s = format!("packed({})", pack.bytes()); - out.push(&pack_s); - } - let align_s; - if let Some(align) = repr.align { - align_s = format!("align({})", align.bytes()); - out.push(&align_s); - } - let int_s; - if let Some(int) = repr.int { - int_s = match int { - IntegerType::Pointer(is_signed) => { - format!("{}size", if is_signed { 'i' } else { 'u' }) - } - IntegerType::Fixed(size, is_signed) => { - format!("{}{}", if is_signed { 'i' } else { 'u' }, size.size().bytes() * 8) - } - }; - out.push(&int_s); - } - if !out.is_empty() { Some(format!("#[repr({})]", out.join(", "))) } else { None } -} - #[derive(Clone, Debug)] pub(crate) enum ItemKind { ExternCrateItem { diff --git a/src/librustdoc/html/highlight.rs b/src/librustdoc/html/highlight.rs index 0e06361024b..fad15573cde 100644 --- a/src/librustdoc/html/highlight.rs +++ b/src/librustdoc/html/highlight.rs @@ -8,6 +8,7 @@ use std::borrow::Cow; use std::collections::VecDeque; use std::fmt::{self, Display, Write}; +use std::iter; use rustc_data_structures::fx::FxIndexMap; use rustc_lexer::{Cursor, FrontmatterAllowed, LiteralKind, TokenKind}; @@ -15,8 +16,9 @@ use rustc_span::edition::Edition; use rustc_span::symbol::Symbol; use rustc_span::{BytePos, DUMMY_SP, Span}; -use super::format::{self, write_str}; +use super::format; use crate::clean::PrimitiveType; +use crate::display::Joined as _; use crate::html::escape::EscapeBodyText; use crate::html::macro_expansion::ExpandedCode; use crate::html::render::{Context, LinkFromSrc}; @@ -45,92 +47,72 @@ pub(crate) enum Tooltip { CompileFail, ShouldPanic, Edition(Edition), - None, } /// Highlights `src` as an inline example, returning the HTML output. pub(crate) fn render_example_with_highlighting( src: &str, - out: &mut String, - tooltip: Tooltip, + tooltip: Option<&Tooltip>, playground_button: Option<&str>, extra_classes: &[String], -) { - write_header(out, "rust-example-rendered", None, tooltip, extra_classes); - write_code(out, src, None, None, None); - write_footer(out, playground_button); +) -> impl Display { + fmt::from_fn(move |f| { + write_header("rust-example-rendered", tooltip, extra_classes).fmt(f)?; + write_code(f, src, None, None, None); + write_footer(playground_button).fmt(f) + }) } -fn write_header( - out: &mut String, - class: &str, - extra_content: Option<&str>, - tooltip: Tooltip, - extra_classes: &[String], -) { - write_str( - out, - format_args!( +fn write_header(class: &str, tooltip: Option<&Tooltip>, extra_classes: &[String]) -> impl Display { + fmt::from_fn(move |f| { + write!( + f, "<div class=\"example-wrap{}\">", - match tooltip { - Tooltip::IgnoreAll | Tooltip::IgnoreSome(_) => " ignore", - Tooltip::CompileFail => " compile_fail", - Tooltip::ShouldPanic => " should_panic", - Tooltip::Edition(_) => " edition", - Tooltip::None => "", - } - ), - ); - - if tooltip != Tooltip::None { - let tooltip = fmt::from_fn(|f| match &tooltip { - Tooltip::IgnoreAll => f.write_str("This example is not tested"), - Tooltip::IgnoreSome(platforms) => { - f.write_str("This example is not tested on ")?; - match &platforms[..] { - [] => unreachable!(), - [platform] => f.write_str(platform)?, - [first, second] => write!(f, "{first} or {second}")?, - [platforms @ .., last] => { - for platform in platforms { - write!(f, "{platform}, ")?; + tooltip + .map(|tooltip| match tooltip { + Tooltip::IgnoreAll | Tooltip::IgnoreSome(_) => " ignore", + Tooltip::CompileFail => " compile_fail", + Tooltip::ShouldPanic => " should_panic", + Tooltip::Edition(_) => " edition", + }) + .unwrap_or_default() + )?; + + if let Some(tooltip) = tooltip { + let tooltip = fmt::from_fn(|f| match tooltip { + Tooltip::IgnoreAll => f.write_str("This example is not tested"), + Tooltip::IgnoreSome(platforms) => { + f.write_str("This example is not tested on ")?; + match &platforms[..] { + [] => unreachable!(), + [platform] => f.write_str(platform)?, + [first, second] => write!(f, "{first} or {second}")?, + [platforms @ .., last] => { + for platform in platforms { + write!(f, "{platform}, ")?; + } + write!(f, "or {last}")?; } - write!(f, "or {last}")?; } + Ok(()) } - Ok(()) - } - Tooltip::CompileFail => f.write_str("This example deliberately fails to compile"), - Tooltip::ShouldPanic => f.write_str("This example panics"), - Tooltip::Edition(edition) => write!(f, "This example runs with edition {edition}"), - Tooltip::None => unreachable!(), + Tooltip::CompileFail => f.write_str("This example deliberately fails to compile"), + Tooltip::ShouldPanic => f.write_str("This example panics"), + Tooltip::Edition(edition) => write!(f, "This example runs with edition {edition}"), + }); + + write!(f, "<a href=\"#\" class=\"tooltip\" title=\"{tooltip}\">ⓘ</a>")?; + } + + let classes = fmt::from_fn(|f| { + iter::once("rust") + .chain(Some(class).filter(|class| !class.is_empty())) + .chain(extra_classes.iter().map(String::as_str)) + .joined(" ", f) }); - write_str(out, format_args!("<a href=\"#\" class=\"tooltip\" title=\"{tooltip}\">ⓘ</a>")); - } - if let Some(extra) = extra_content { - out.push_str(extra); - } - if class.is_empty() { - write_str( - out, - format_args!( - "<pre class=\"rust{}{}\">", - if extra_classes.is_empty() { "" } else { " " }, - extra_classes.join(" ") - ), - ); - } else { - write_str( - out, - format_args!( - "<pre class=\"rust {class}{}{}\">", - if extra_classes.is_empty() { "" } else { " " }, - extra_classes.join(" ") - ), - ); - } - write_str(out, format_args!("<code>")); + write!(f, "<pre class=\"{classes}\"><code>") + }) } /// Check if two `Class` can be merged together. In the following rules, "unclassified" means `None` @@ -577,8 +559,8 @@ pub(super) fn write_code( }); } -fn write_footer(out: &mut String, playground_button: Option<&str>) { - write_str(out, format_args!("</code></pre>{}</div>", playground_button.unwrap_or_default())); +fn write_footer(playground_button: Option<&str>) -> impl Display { + fmt::from_fn(move |f| write!(f, "</code></pre>{}</div>", playground_button.unwrap_or_default())) } /// How a span of text is classified. Mostly corresponds to token kinds. @@ -1262,6 +1244,64 @@ fn string<W: Write>( } } +fn generate_link_to_def( + out: &mut impl Write, + text_s: &str, + klass: Class, + href_context: &Option<HrefContext<'_, '_>>, + def_span: Span, + open_tag: bool, +) -> bool { + if let Some(href_context) = href_context + && let Some(href) = + href_context.context.shared.span_correspondence_map.get(&def_span).and_then(|href| { + let context = href_context.context; + // FIXME: later on, it'd be nice to provide two links (if possible) for all items: + // one to the documentation page and one to the source definition. + // FIXME: currently, external items only generate a link to their documentation, + // a link to their definition can be generated using this: + // https://github.com/rust-lang/rust/blob/60f1a2fc4b535ead9c85ce085fdce49b1b097531/src/librustdoc/html/render/context.rs#L315-L338 + match href { + LinkFromSrc::Local(span) => { + context.href_from_span_relative(*span, &href_context.current_href) + } + LinkFromSrc::External(def_id) => { + format::href_with_root_path(*def_id, context, Some(href_context.root_path)) + .ok() + .map(|(url, _, _)| url) + } + LinkFromSrc::Primitive(prim) => format::href_with_root_path( + PrimitiveType::primitive_locations(context.tcx())[prim], + context, + Some(href_context.root_path), + ) + .ok() + .map(|(url, _, _)| url), + LinkFromSrc::Doc(def_id) => { + format::href_with_root_path(*def_id, context, Some(href_context.root_path)) + .ok() + .map(|(doc_link, _, _)| doc_link) + } + } + }) + { + if !open_tag { + // We're already inside an element which has the same klass, no need to give it + // again. + write!(out, "<a href=\"{href}\">{text_s}").unwrap(); + } else { + let klass_s = klass.as_html(); + if klass_s.is_empty() { + write!(out, "<a href=\"{href}\">{text_s}").unwrap(); + } else { + write!(out, "<a class=\"{klass_s}\" href=\"{href}\">{text_s}").unwrap(); + } + } + return true; + } + false +} + /// This function writes `text` into `out` with some modifications depending on `klass`: /// /// * If `klass` is `None`, `text` is written into `out` with no modification. @@ -1291,10 +1331,14 @@ fn string_without_closing_tag<T: Display>( return Some("</span>"); }; + let mut added_links = false; let mut text_s = text.to_string(); if text_s.contains("::") { + let mut span = def_span.with_hi(def_span.lo()); text_s = text_s.split("::").intersperse("::").fold(String::new(), |mut path, t| { + span = span.with_hi(span.hi() + BytePos(t.len() as _)); match t { + "::" => write!(&mut path, "::"), "self" | "Self" => write!( &mut path, "<span class=\"{klass}\">{t}</span>", @@ -1307,58 +1351,24 @@ fn string_without_closing_tag<T: Display>( klass = Class::KeyWord.as_html(), ) } - t => write!(&mut path, "{t}"), + t => { + if !t.is_empty() + && generate_link_to_def(&mut path, t, klass, href_context, span, open_tag) + { + added_links = true; + write!(&mut path, "</a>") + } else { + write!(&mut path, "{t}") + } + } } .expect("Failed to build source HTML path"); + span = span.with_lo(span.lo() + BytePos(t.len() as _)); path }); } - if let Some(href_context) = href_context - && let Some(href) = href_context.context.shared.span_correspondence_map.get(&def_span) - && let Some(href) = { - let context = href_context.context; - // FIXME: later on, it'd be nice to provide two links (if possible) for all items: - // one to the documentation page and one to the source definition. - // FIXME: currently, external items only generate a link to their documentation, - // a link to their definition can be generated using this: - // https://github.com/rust-lang/rust/blob/60f1a2fc4b535ead9c85ce085fdce49b1b097531/src/librustdoc/html/render/context.rs#L315-L338 - match href { - LinkFromSrc::Local(span) => { - context.href_from_span_relative(*span, &href_context.current_href) - } - LinkFromSrc::External(def_id) => { - format::href_with_root_path(*def_id, context, Some(href_context.root_path)) - .ok() - .map(|(url, _, _)| url) - } - LinkFromSrc::Primitive(prim) => format::href_with_root_path( - PrimitiveType::primitive_locations(context.tcx())[prim], - context, - Some(href_context.root_path), - ) - .ok() - .map(|(url, _, _)| url), - LinkFromSrc::Doc(def_id) => { - format::href_with_root_path(*def_id, context, Some(href_context.root_path)) - .ok() - .map(|(doc_link, _, _)| doc_link) - } - } - } - { - if !open_tag { - // We're already inside an element which has the same klass, no need to give it - // again. - write!(out, "<a href=\"{href}\">{text_s}").unwrap(); - } else { - let klass_s = klass.as_html(); - if klass_s.is_empty() { - write!(out, "<a href=\"{href}\">{text_s}").unwrap(); - } else { - write!(out, "<a class=\"{klass_s}\" href=\"{href}\">{text_s}").unwrap(); - } - } + if !added_links && generate_link_to_def(out, &text_s, klass, href_context, def_span, open_tag) { return Some("</a>"); } if !open_tag { diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs index 4addf2c3c96..7065de14c8e 100644 --- a/src/librustdoc/html/markdown.rs +++ b/src/librustdoc/html/markdown.rs @@ -321,31 +321,34 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for CodeBlocks<'_, 'a, I> { )) }); - let tooltip = if ignore == Ignore::All { - highlight::Tooltip::IgnoreAll - } else if let Ignore::Some(platforms) = ignore { - highlight::Tooltip::IgnoreSome(platforms) - } else if compile_fail { - highlight::Tooltip::CompileFail - } else if should_panic { - highlight::Tooltip::ShouldPanic - } else if explicit_edition { - highlight::Tooltip::Edition(edition) - } else { - highlight::Tooltip::None + let tooltip = { + use highlight::Tooltip::*; + + if ignore == Ignore::All { + Some(IgnoreAll) + } else if let Ignore::Some(platforms) = ignore { + Some(IgnoreSome(platforms)) + } else if compile_fail { + Some(CompileFail) + } else if should_panic { + Some(ShouldPanic) + } else if explicit_edition { + Some(Edition(edition)) + } else { + None + } }; // insert newline to clearly separate it from the // previous block so we can shorten the html output - let mut s = String::new(); - s.push('\n'); - - highlight::render_example_with_highlighting( - &text, - &mut s, - tooltip, - playground_button.as_deref(), - &added_classes, + let s = format!( + "\n{}", + highlight::render_example_with_highlighting( + &text, + tooltip.as_ref(), + playground_button.as_deref(), + &added_classes, + ) ); Some(Event::Html(s.into())) } diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs index 6d684449b6d..d06540a65b5 100644 --- a/src/librustdoc/html/render/mod.rs +++ b/src/librustdoc/html/render/mod.rs @@ -51,7 +51,9 @@ use askama::Template; use itertools::Either; use rustc_ast::join_path_syms; use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet}; -use rustc_hir::attrs::{DeprecatedSince, Deprecation}; +use rustc_hir as hir; +use rustc_hir::attrs::{AttributeKind, DeprecatedSince, Deprecation}; +use rustc_hir::def::DefKind; use rustc_hir::def_id::{DefId, DefIdSet}; use rustc_hir::{ConstStability, Mutability, RustcVersion, StabilityLevel, StableSince}; use rustc_middle::ty::print::PrintTraitRefExt; @@ -601,7 +603,12 @@ impl AllTypes { } fmt::from_fn(|f| { - f.write_str("<h1>List of all items</h1>")?; + f.write_str( + "<div class=\"main-heading\">\ + <h1>List of all items</h1>\ + <rustdoc-toolbar></rustdoc-toolbar>\ + </div>", + )?; // Note: print_entries does not escape the title, because we know the current set of titles // doesn't require escaping. print_entries(&self.structs, ItemSection::Structs).fmt(f)?; @@ -1310,43 +1317,6 @@ fn render_assoc_item( }) } -struct CodeAttribute(String); - -fn render_code_attribute(prefix: &str, code_attr: CodeAttribute, w: &mut impl fmt::Write) { - write!( - w, - "<div class=\"code-attribute\">{prefix}{attr}</div>", - prefix = prefix, - attr = code_attr.0 - ) - .unwrap(); -} - -// When an attribute is rendered inside a <code> tag, it is formatted using -// a div to produce a newline after it. -fn render_attributes_in_code( - w: &mut impl fmt::Write, - it: &clean::Item, - prefix: &str, - cx: &Context<'_>, -) { - for attr in it.attributes(cx.tcx(), cx.cache()) { - render_code_attribute(prefix, CodeAttribute(attr), w); - } -} - -/// used for type aliases to only render their `repr` attribute. -fn render_repr_attributes_in_code( - w: &mut impl fmt::Write, - cx: &Context<'_>, - def_id: DefId, - item_type: ItemType, -) { - if let Some(repr) = clean::repr_attributes(cx.tcx(), cx.cache(), def_id, item_type) { - render_code_attribute("", CodeAttribute(repr), w); - } -} - #[derive(Copy, Clone)] enum AssocItemLink<'a> { Anchor(Option<&'a str>), @@ -2959,3 +2929,142 @@ fn render_call_locations<W: fmt::Write>( w.write_str("</div>") } + +fn render_attributes_in_code( + w: &mut impl fmt::Write, + item: &clean::Item, + prefix: &str, + cx: &Context<'_>, +) { + for attr in &item.attrs.other_attrs { + let hir::Attribute::Parsed(kind) = attr else { continue }; + let attr = match kind { + AttributeKind::LinkSection { name, .. } => { + Cow::Owned(format!("#[unsafe(link_section = {})]", Escape(&format!("{name:?}")))) + } + AttributeKind::NoMangle(..) => Cow::Borrowed("#[unsafe(no_mangle)]"), + AttributeKind::ExportName { name, .. } => { + Cow::Owned(format!("#[unsafe(export_name = {})]", Escape(&format!("{name:?}")))) + } + AttributeKind::NonExhaustive(..) => Cow::Borrowed("#[non_exhaustive]"), + _ => continue, + }; + render_code_attribute(prefix, attr.as_ref(), w); + } + + if let Some(def_id) = item.def_id() + && let Some(repr) = repr_attribute(cx.tcx(), cx.cache(), def_id) + { + render_code_attribute(prefix, &repr, w); + } +} + +fn render_repr_attribute_in_code(w: &mut impl fmt::Write, cx: &Context<'_>, def_id: DefId) { + if let Some(repr) = repr_attribute(cx.tcx(), cx.cache(), def_id) { + render_code_attribute("", &repr, w); + } +} + +fn render_code_attribute(prefix: &str, attr: &str, w: &mut impl fmt::Write) { + write!(w, "<div class=\"code-attribute\">{prefix}{attr}</div>").unwrap(); +} + +/// Compute the *public* `#[repr]` of the item given by `DefId`. +/// +/// Read more about it here: +/// <https://doc.rust-lang.org/nightly/rustdoc/advanced-features.html#repr-documenting-the-representation-of-a-type>. +fn repr_attribute<'tcx>( + tcx: TyCtxt<'tcx>, + cache: &Cache, + def_id: DefId, +) -> Option<Cow<'static, str>> { + let adt = match tcx.def_kind(def_id) { + DefKind::Struct | DefKind::Enum | DefKind::Union => tcx.adt_def(def_id), + _ => return None, + }; + let repr = adt.repr(); + + let is_visible = |def_id| cache.document_hidden || !tcx.is_doc_hidden(def_id); + let is_public_field = |field: &ty::FieldDef| { + (cache.document_private || field.vis.is_public()) && is_visible(field.did) + }; + + if repr.transparent() { + // The transparent repr is public iff the non-1-ZST field is public and visible or + // – in case all fields are 1-ZST fields — at least one field is public and visible. + let is_public = 'is_public: { + // `#[repr(transparent)]` can only be applied to structs and single-variant enums. + let var = adt.variant(rustc_abi::FIRST_VARIANT); // the first and only variant + + if !is_visible(var.def_id) { + break 'is_public false; + } + + // Side note: There can only ever be one or zero non-1-ZST fields. + let non_1zst_field = var.fields.iter().find(|field| { + let ty = ty::TypingEnv::post_analysis(tcx, field.did) + .as_query_input(tcx.type_of(field.did).instantiate_identity()); + tcx.layout_of(ty).is_ok_and(|layout| !layout.is_1zst()) + }); + + match non_1zst_field { + Some(field) => is_public_field(field), + None => var.fields.is_empty() || var.fields.iter().any(is_public_field), + } + }; + + // Since the transparent repr can't have any other reprs or + // repr modifiers beside it, we can safely return early here. + return is_public.then(|| "#[repr(transparent)]".into()); + } + + // Fast path which avoids looking through the variants and fields in + // the common case of no `#[repr]` or in the case of `#[repr(Rust)]`. + // FIXME: This check is not very robust / forward compatible! + if !repr.c() + && !repr.simd() + && repr.int.is_none() + && repr.pack.is_none() + && repr.align.is_none() + { + return None; + } + + // The repr is public iff all components are public and visible. + let is_public = adt + .variants() + .iter() + .all(|variant| is_visible(variant.def_id) && variant.fields.iter().all(is_public_field)); + if !is_public { + return None; + } + + let mut result = Vec::<Cow<'_, _>>::new(); + + if repr.c() { + result.push("C".into()); + } + if repr.simd() { + result.push("simd".into()); + } + if let Some(int) = repr.int { + let prefix = if int.is_signed() { 'i' } else { 'u' }; + let int = match int { + rustc_abi::IntegerType::Pointer(_) => format!("{prefix}size"), + rustc_abi::IntegerType::Fixed(int, _) => { + format!("{prefix}{}", int.size().bytes() * 8) + } + }; + result.push(int.into()); + } + + // Render modifiers last. + if let Some(pack) = repr.pack { + result.push(format!("packed({})", pack.bytes()).into()); + } + if let Some(align) = repr.align { + result.push(format!("align({})", align.bytes()).into()); + } + + (!result.is_empty()).then(|| format!("#[repr({})]", result.join(", ")).into()) +} diff --git a/src/librustdoc/html/render/print_item.rs b/src/librustdoc/html/render/print_item.rs index afa438f2596..adfc7481c73 100644 --- a/src/librustdoc/html/render/print_item.rs +++ b/src/librustdoc/html/render/print_item.rs @@ -21,7 +21,7 @@ use super::{ collect_paths_for_type, document, ensure_trailing_slash, get_filtered_impls_for_reference, item_ty_to_section, notable_traits_button, notable_traits_json, render_all_impls, render_assoc_item, render_assoc_items, render_attributes_in_code, render_impl, - render_repr_attributes_in_code, render_rightside, render_stability_since_raw, + render_repr_attribute_in_code, render_rightside, render_stability_since_raw, render_stability_since_raw_with_extra, write_section_heading, }; use crate::clean; @@ -1555,7 +1555,7 @@ impl<'clean> DisplayEnum<'clean> { wrap_item(w, |w| { if is_type_alias { // For now the only attributes we render for type aliases are `repr` attributes. - render_repr_attributes_in_code(w, cx, self.def_id, ItemType::Enum); + render_repr_attribute_in_code(w, cx, self.def_id); } else { render_attributes_in_code(w, it, "", cx); } @@ -2017,7 +2017,7 @@ impl<'a> DisplayStruct<'a> { wrap_item(w, |w| { if is_type_alias { // For now the only attributes we render for type aliases are `repr` attributes. - render_repr_attributes_in_code(w, cx, self.def_id, ItemType::Struct); + render_repr_attribute_in_code(w, cx, self.def_id); } else { render_attributes_in_code(w, it, "", cx); } @@ -2371,7 +2371,7 @@ fn render_union( fmt::from_fn(move |mut f| { if is_type_alias { // For now the only attributes we render for type aliases are `repr` attributes. - render_repr_attributes_in_code(f, cx, def_id, ItemType::Union); + render_repr_attribute_in_code(f, cx, def_id); } else { render_attributes_in_code(f, it, "", cx); } diff --git a/src/librustdoc/html/render/span_map.rs b/src/librustdoc/html/render/span_map.rs index 8bc2e0bd957..ef7ce33298d 100644 --- a/src/librustdoc/html/render/span_map.rs +++ b/src/librustdoc/html/render/span_map.rs @@ -2,11 +2,9 @@ use std::path::{Path, PathBuf}; use rustc_data_structures::fx::{FxHashMap, FxIndexMap}; use rustc_hir::def::{DefKind, Res}; -use rustc_hir::def_id::{DefId, LOCAL_CRATE}; -use rustc_hir::intravisit::{self, Visitor}; -use rustc_hir::{ - ExprKind, HirId, Item, ItemKind, Mod, Node, Pat, PatExpr, PatExprKind, PatKind, QPath, -}; +use rustc_hir::def_id::{DefId, LOCAL_CRATE, LocalDefId}; +use rustc_hir::intravisit::{self, Visitor, VisitorExt}; +use rustc_hir::{ExprKind, HirId, Item, ItemKind, Mod, Node, QPath}; use rustc_middle::hir::nested_filter; use rustc_middle::ty::TyCtxt; use rustc_span::hygiene::MacroKind; @@ -67,7 +65,7 @@ struct SpanMapVisitor<'tcx> { impl SpanMapVisitor<'_> { /// This function is where we handle `hir::Path` elements and add them into the "span map". - fn handle_path(&mut self, path: &rustc_hir::Path<'_>) { + fn handle_path(&mut self, path: &rustc_hir::Path<'_>, only_use_last_segment: bool) { match path.res { // FIXME: For now, we handle `DefKind` if it's not a `DefKind::TyParam`. // Would be nice to support them too alongside the other `DefKind` @@ -79,24 +77,36 @@ impl SpanMapVisitor<'_> { LinkFromSrc::External(def_id) }; // In case the path ends with generics, we remove them from the span. - let span = path - .segments - .last() - .map(|last| { - // In `use` statements, the included item is not in the path segments. - // However, it doesn't matter because you can't have generics on `use` - // statements. - if path.span.contains(last.ident.span) { - path.span.with_hi(last.ident.span.hi()) - } else { - path.span - } - }) - .unwrap_or(path.span); + let span = if only_use_last_segment + && let Some(path_span) = path.segments.last().map(|segment| segment.ident.span) + { + path_span + } else { + path.segments + .last() + .map(|last| { + // In `use` statements, the included item is not in the path segments. + // However, it doesn't matter because you can't have generics on `use` + // statements. + if path.span.contains(last.ident.span) { + path.span.with_hi(last.ident.span.hi()) + } else { + path.span + } + }) + .unwrap_or(path.span) + }; self.matches.insert(span, link); } Res::Local(_) if let Some(span) = self.tcx.hir_res_span(path.res) => { - self.matches.insert(path.span, LinkFromSrc::Local(clean::Span::new(span))); + let path_span = if only_use_last_segment + && let Some(path_span) = path.segments.last().map(|segment| segment.ident.span) + { + path_span + } else { + path.span + }; + self.matches.insert(path_span, LinkFromSrc::Local(clean::Span::new(span))); } Res::PrimTy(p) => { // FIXME: Doesn't handle "path-like" primitives like arrays or tuples. @@ -189,31 +199,23 @@ impl SpanMapVisitor<'_> { self.matches.insert(span, link); } } +} - fn handle_pat(&mut self, p: &Pat<'_>) { - let mut check_qpath = |qpath, hir_id| match qpath { - QPath::TypeRelative(_, path) if matches!(path.res, Res::Err) => { - self.infer_id(path.hir_id, Some(hir_id), qpath.span()); - } - QPath::Resolved(_, path) => self.handle_path(path), - _ => {} - }; - match p.kind { - PatKind::Binding(_, _, _, Some(p)) => self.handle_pat(p), - PatKind::Struct(qpath, _, _) | PatKind::TupleStruct(qpath, _, _) => { - check_qpath(qpath, p.hir_id) - } - PatKind::Expr(PatExpr { kind: PatExprKind::Path(qpath), hir_id, .. }) => { - check_qpath(*qpath, *hir_id) - } - PatKind::Or(pats) => { - for pat in pats { - self.handle_pat(pat); - } - } - _ => {} +// This is a reimplementation of `hir_enclosing_body_owner` which allows to fail without +// panicking. +fn hir_enclosing_body_owner(tcx: TyCtxt<'_>, hir_id: HirId) -> Option<LocalDefId> { + for (_, node) in tcx.hir_parent_iter(hir_id) { + // FIXME: associated type impl items don't have an associated body, so we don't handle + // them currently. + if let Node::ImplItem(impl_item) = node + && matches!(impl_item.kind, rustc_hir::ImplItemKind::Type(_)) + { + return None; + } else if let Some((def_id, _)) = node.associated_body() { + return Some(def_id); } } + None } impl<'tcx> Visitor<'tcx> for SpanMapVisitor<'tcx> { @@ -227,12 +229,42 @@ impl<'tcx> Visitor<'tcx> for SpanMapVisitor<'tcx> { if self.handle_macro(path.span) { return; } - self.handle_path(path); + self.handle_path(path, false); intravisit::walk_path(self, path); } - fn visit_pat(&mut self, p: &Pat<'tcx>) { - self.handle_pat(p); + fn visit_qpath(&mut self, qpath: &QPath<'tcx>, id: HirId, _span: Span) { + match *qpath { + QPath::TypeRelative(qself, path) => { + if matches!(path.res, Res::Err) { + let tcx = self.tcx; + if let Some(body_id) = hir_enclosing_body_owner(tcx, id) { + let typeck_results = tcx.typeck_body(tcx.hir_body_owned_by(body_id).id()); + let path = rustc_hir::Path { + // We change the span to not include parens. + span: path.ident.span, + res: typeck_results.qpath_res(qpath, id), + segments: &[], + }; + self.handle_path(&path, false); + } + } else { + self.infer_id(path.hir_id, Some(id), path.ident.span); + } + + rustc_ast::visit::try_visit!(self.visit_ty_unambig(qself)); + self.visit_path_segment(path); + } + QPath::Resolved(maybe_qself, path) => { + self.handle_path(path, true); + + rustc_ast::visit::visit_opt!(self, visit_ty_unambig, maybe_qself); + if !self.handle_macro(path.span) { + intravisit::walk_path(self, path); + } + } + _ => {} + } } fn visit_mod(&mut self, m: &'tcx Mod<'tcx>, span: Span, id: HirId) { diff --git a/src/librustdoc/html/render/write_shared.rs b/src/librustdoc/html/render/write_shared.rs index e37a5246a76..3a1db805d01 100644 --- a/src/librustdoc/html/render/write_shared.rs +++ b/src/librustdoc/html/render/write_shared.rs @@ -386,8 +386,13 @@ impl CratesIndexPart { let layout = &cx.shared.layout; let style_files = &cx.shared.style_files; const DELIMITER: &str = "\u{FFFC}"; // users are being naughty if they have this - let content = - format!("<h1>List of all crates</h1><ul class=\"all-items\">{DELIMITER}</ul>"); + let content = format!( + "<div class=\"main-heading\">\ + <h1>List of all crates</h1>\ + <rustdoc-toolbar></rustdoc-toolbar>\ + </div>\ + <ul class=\"all-items\">{DELIMITER}</ul>" + ); let template = layout::render(layout, &page, "", content, style_files); SortedTemplate::from_template(&template, DELIMITER) .expect("Object Replacement Character (U+FFFC) should not appear in the --index-page") diff --git a/src/librustdoc/html/templates/type_layout.html b/src/librustdoc/html/templates/type_layout.html index 0034552bdd3..49153d58fe9 100644 --- a/src/librustdoc/html/templates/type_layout.html +++ b/src/librustdoc/html/templates/type_layout.html @@ -65,5 +65,10 @@ <strong>Note:</strong> Encountered an error during type layout; {#+ #} the type's layout depended on the type's layout itself. {# #} </p> + {% when Err(LayoutError::InvalidSimd {..}) %} + <p> {# #} + <strong>Note:</strong> Encountered an error during type layout; {#+ #} + the vector type had zero elements or too many elements. {# #} + </p> {% endmatch %} </div> {# #} diff --git a/src/librustdoc/passes/collect_intra_doc_links.rs b/src/librustdoc/passes/collect_intra_doc_links.rs index 0da42f38251..79d74c3c4eb 100644 --- a/src/librustdoc/passes/collect_intra_doc_links.rs +++ b/src/librustdoc/passes/collect_intra_doc_links.rs @@ -130,6 +130,7 @@ impl Res { DefKind::Static { .. } => "static", DefKind::Field => "field", DefKind::Variant | DefKind::Ctor(..) => "variant", + DefKind::TyAlias => "tyalias", // Now handle things that don't have a specific disambiguator _ => match kind .ns() @@ -1708,6 +1709,7 @@ impl Disambiguator { "value" => NS(Namespace::ValueNS), "macro" => NS(Namespace::MacroNS), "prim" | "primitive" => Primitive, + "tyalias" | "typealias" => Kind(DefKind::TyAlias), _ => return Err((format!("unknown disambiguator `{prefix}`"), 0..idx)), }; diff --git a/src/tools/clippy/tests/ui/author/macro_in_closure.stdout b/src/tools/clippy/tests/ui/author/macro_in_closure.stdout index 49595e2fec2..786c61e0c01 100644 --- a/src/tools/clippy/tests/ui/author/macro_in_closure.stdout +++ b/src/tools/clippy/tests/ui/author/macro_in_closure.stdout @@ -10,34 +10,42 @@ if let StmtKind::Let(local) = stmt.kind && paths::STD_IO_STDIO__PRINT.matches_path(cx, func) // Add the path to `clippy_utils::paths` if needed && args.len() == 1 && let ExprKind::Block(block1, None) = args[0].kind - && block1.stmts.len() == 1 + && block1.stmts.len() == 2 && let StmtKind::Let(local1) = block1.stmts[0].kind && let Some(init1) = local1.init - && let ExprKind::Array(elements) = init1.kind + && let ExprKind::Tup(elements) = init1.kind && elements.len() == 1 - && let ExprKind::Call(func1, args1) = elements[0].kind - && paths::CORE_FMT_RT_ARGUMENT_NEW_DISPLAY.matches_path(cx, func1) // Add the path to `clippy_utils::paths` if needed - && args1.len() == 1 - && let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner) = args1[0].kind + && let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner) = elements[0].kind && let PatKind::Binding(BindingMode::NONE, _, name, None) = local1.pat.kind && name.as_str() == "args" + && let StmtKind::Let(local2) = block1.stmts[1].kind + && let Some(init2) = local2.init + && let ExprKind::Array(elements1) = init2.kind + && elements1.len() == 1 + && let ExprKind::Call(func1, args1) = elements1[0].kind + && paths::CORE_FMT_RT_ARGUMENT_NEW_DISPLAY.matches_path(cx, func1) // Add the path to `clippy_utils::paths` if needed + && args1.len() == 1 + && let ExprKind::Field(object, field_name) = args1[0].kind + && field_name.as_str() == "0" + && let PatKind::Binding(BindingMode::NONE, _, name1, None) = local2.pat.kind + && name1.as_str() == "args" && let Some(trailing_expr) = block1.expr && let ExprKind::Call(func2, args2) = trailing_expr.kind && paths::CORE_FMT_RT_NEW_V1.matches_path(cx, func2) // Add the path to `clippy_utils::paths` if needed && args2.len() == 2 && let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner1) = args2[0].kind - && let ExprKind::Array(elements1) = inner1.kind - && elements1.len() == 2 - && let ExprKind::Lit(ref lit) = elements1[0].kind + && let ExprKind::Array(elements2) = inner1.kind + && elements2.len() == 2 + && let ExprKind::Lit(ref lit) = elements2[0].kind && let LitKind::Str(s, _) = lit.node && s.as_str() == "" - && let ExprKind::Lit(ref lit1) = elements1[1].kind + && let ExprKind::Lit(ref lit1) = elements2[1].kind && let LitKind::Str(s1, _) = lit1.node && s1.as_str() == "\n" && let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner2) = args2[1].kind && block.expr.is_none() - && let PatKind::Binding(BindingMode::NONE, _, name1, None) = local.pat.kind - && name1.as_str() == "print_text" + && let PatKind::Binding(BindingMode::NONE, _, name2, None) = local.pat.kind + && name2.as_str() == "print_text" { // report your lint here } diff --git a/src/tools/clippy/tests/ui/author/macro_in_loop.stdout b/src/tools/clippy/tests/ui/author/macro_in_loop.stdout index 4fc7b49464d..80717900b52 100644 --- a/src/tools/clippy/tests/ui/author/macro_in_loop.stdout +++ b/src/tools/clippy/tests/ui/author/macro_in_loop.stdout @@ -20,28 +20,36 @@ if let Some(higher::ForLoop { pat: pat, arg: arg, body: body, .. }) = higher::Fo && paths::STD_IO_STDIO__PRINT.matches_path(cx, func) // Add the path to `clippy_utils::paths` if needed && args.len() == 1 && let ExprKind::Block(block2, None) = args[0].kind - && block2.stmts.len() == 1 + && block2.stmts.len() == 2 && let StmtKind::Let(local) = block2.stmts[0].kind && let Some(init) = local.init - && let ExprKind::Array(elements) = init.kind + && let ExprKind::Tup(elements) = init.kind && elements.len() == 1 - && let ExprKind::Call(func1, args1) = elements[0].kind - && paths::CORE_FMT_RT_ARGUMENT_NEW_DISPLAY.matches_path(cx, func1) // Add the path to `clippy_utils::paths` if needed - && args1.len() == 1 - && let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner) = args1[0].kind + && let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner) = elements[0].kind && let PatKind::Binding(BindingMode::NONE, _, name1, None) = local.pat.kind && name1.as_str() == "args" + && let StmtKind::Let(local1) = block2.stmts[1].kind + && let Some(init1) = local1.init + && let ExprKind::Array(elements1) = init1.kind + && elements1.len() == 1 + && let ExprKind::Call(func1, args1) = elements1[0].kind + && paths::CORE_FMT_RT_ARGUMENT_NEW_DISPLAY.matches_path(cx, func1) // Add the path to `clippy_utils::paths` if needed + && args1.len() == 1 + && let ExprKind::Field(object, field_name) = args1[0].kind + && field_name.as_str() == "0" + && let PatKind::Binding(BindingMode::NONE, _, name2, None) = local1.pat.kind + && name2.as_str() == "args" && let Some(trailing_expr) = block2.expr && let ExprKind::Call(func2, args2) = trailing_expr.kind && paths::CORE_FMT_RT_NEW_V1.matches_path(cx, func2) // Add the path to `clippy_utils::paths` if needed && args2.len() == 2 && let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner1) = args2[0].kind - && let ExprKind::Array(elements1) = inner1.kind - && elements1.len() == 2 - && let ExprKind::Lit(ref lit2) = elements1[0].kind + && let ExprKind::Array(elements2) = inner1.kind + && elements2.len() == 2 + && let ExprKind::Lit(ref lit2) = elements2[0].kind && let LitKind::Str(s, _) = lit2.node && s.as_str() == "" - && let ExprKind::Lit(ref lit3) = elements1[1].kind + && let ExprKind::Lit(ref lit3) = elements2[1].kind && let LitKind::Str(s1, _) = lit3.node && s1.as_str() == "\n" && let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner2) = args2[1].kind diff --git a/src/tools/clippy/tests/ui/useless_attribute.fixed b/src/tools/clippy/tests/ui/useless_attribute.fixed index 15070dd9c2c..e0bc23e0788 100644 --- a/src/tools/clippy/tests/ui/useless_attribute.fixed +++ b/src/tools/clippy/tests/ui/useless_attribute.fixed @@ -153,7 +153,7 @@ pub mod redundant_imports_issue { () => {}; } - #[expect(redundant_imports)] + #[expect(unused_imports)] pub(crate) use empty; empty!(); diff --git a/src/tools/clippy/tests/ui/useless_attribute.rs b/src/tools/clippy/tests/ui/useless_attribute.rs index 3f530de7fd8..30a4c354b23 100644 --- a/src/tools/clippy/tests/ui/useless_attribute.rs +++ b/src/tools/clippy/tests/ui/useless_attribute.rs @@ -153,7 +153,7 @@ pub mod redundant_imports_issue { () => {}; } - #[expect(redundant_imports)] + #[expect(unused_imports)] pub(crate) use empty; empty!(); diff --git a/src/tools/miri/src/intrinsics/math.rs b/src/tools/miri/src/intrinsics/math.rs index b9c99f28594..0cc4342f0d5 100644 --- a/src/tools/miri/src/intrinsics/math.rs +++ b/src/tools/miri/src/intrinsics/math.rs @@ -1,4 +1,3 @@ -use rand::Rng; use rustc_apfloat::{self, Float, FloatConvert, Round}; use rustc_middle::mir; use rustc_middle::ty::{self, FloatTy}; @@ -39,46 +38,6 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { "sqrtf64" => sqrt::<rustc_apfloat::ieee::Double>(this, args, dest)?, "sqrtf128" => sqrt::<rustc_apfloat::ieee::Quad>(this, args, dest)?, - "fmaf32" => { - let [a, b, c] = check_intrinsic_arg_count(args)?; - let a = this.read_scalar(a)?.to_f32()?; - let b = this.read_scalar(b)?.to_f32()?; - let c = this.read_scalar(c)?.to_f32()?; - let res = a.mul_add(b, c).value; - let res = this.adjust_nan(res, &[a, b, c]); - this.write_scalar(res, dest)?; - } - "fmaf64" => { - let [a, b, c] = check_intrinsic_arg_count(args)?; - let a = this.read_scalar(a)?.to_f64()?; - let b = this.read_scalar(b)?.to_f64()?; - let c = this.read_scalar(c)?.to_f64()?; - let res = a.mul_add(b, c).value; - let res = this.adjust_nan(res, &[a, b, c]); - this.write_scalar(res, dest)?; - } - - "fmuladdf32" => { - let [a, b, c] = check_intrinsic_arg_count(args)?; - let a = this.read_scalar(a)?.to_f32()?; - let b = this.read_scalar(b)?.to_f32()?; - let c = this.read_scalar(c)?.to_f32()?; - let fuse: bool = this.machine.float_nondet && this.machine.rng.get_mut().random(); - let res = if fuse { a.mul_add(b, c).value } else { ((a * b).value + c).value }; - let res = this.adjust_nan(res, &[a, b, c]); - this.write_scalar(res, dest)?; - } - "fmuladdf64" => { - let [a, b, c] = check_intrinsic_arg_count(args)?; - let a = this.read_scalar(a)?.to_f64()?; - let b = this.read_scalar(b)?.to_f64()?; - let c = this.read_scalar(c)?.to_f64()?; - let fuse: bool = this.machine.float_nondet && this.machine.rng.get_mut().random(); - let res = if fuse { a.mul_add(b, c).value } else { ((a * b).value + c).value }; - let res = this.adjust_nan(res, &[a, b, c]); - this.write_scalar(res, dest)?; - } - #[rustfmt::skip] | "fadd_fast" | "fsub_fast" diff --git a/src/tools/miri/src/machine.rs b/src/tools/miri/src/machine.rs index 04c8bee72c0..d307636e782 100644 --- a/src/tools/miri/src/machine.rs +++ b/src/tools/miri/src/machine.rs @@ -1294,6 +1294,11 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { } #[inline(always)] + fn float_fuse_mul_add(ecx: &mut InterpCx<'tcx, Self>) -> bool { + ecx.machine.float_nondet && ecx.machine.rng.get_mut().random() + } + + #[inline(always)] fn ub_checks(ecx: &InterpCx<'tcx, Self>) -> InterpResult<'tcx, bool> { interp_ok(ecx.tcx.sess.ub_checks()) } diff --git a/src/tools/miri/tests/pass/vec.rs b/src/tools/miri/tests/pass/vec.rs index 3e526813bb4..8b1b1e143b1 100644 --- a/src/tools/miri/tests/pass/vec.rs +++ b/src/tools/miri/tests/pass/vec.rs @@ -169,6 +169,15 @@ fn miri_issue_2759() { input.replace_range(0..0, "0"); } +/// This was skirting the edge of UB, let's make sure it remains on the sound side. +/// Context: <https://github.com/rust-lang/rust/pull/141032>. +fn extract_if() { + let mut v = vec![Box::new(0u64), Box::new(1u64)]; + for item in v.extract_if(.., |x| **x == 0) { + drop(item); + } +} + fn main() { assert_eq!(vec_reallocate().len(), 5); @@ -199,4 +208,5 @@ fn main() { swap_remove(); reverse(); miri_issue_2759(); + extract_if(); } diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/builtin/derive_macro.rs b/src/tools/rust-analyzer/crates/hir-expand/src/builtin/derive_macro.rs index 15e68ff95cd..0fa412ad7fa 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/builtin/derive_macro.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/builtin/derive_macro.rs @@ -12,7 +12,7 @@ use tracing::debug; use crate::{ ExpandError, ExpandResult, MacroCallId, - builtin::quote::{dollar_crate, quote}, + builtin::quote::dollar_crate, db::ExpandDatabase, hygiene::span_with_def_site_ctxt, name::{self, AsName, Name}, diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/builtin/fn_macro.rs b/src/tools/rust-analyzer/crates/hir-expand/src/builtin/fn_macro.rs index ec344613761..6fe63f249cd 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/builtin/fn_macro.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/builtin/fn_macro.rs @@ -19,7 +19,7 @@ use syntax_bridge::syntax_node_to_token_tree; use crate::{ EditionedFileId, ExpandError, ExpandResult, Lookup as _, MacroCallId, - builtin::quote::{WithDelimiter, dollar_crate, quote}, + builtin::quote::{WithDelimiter, dollar_crate}, db::ExpandDatabase, hygiene::{span_with_call_site_ctxt, span_with_def_site_ctxt}, name, diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/builtin/quote.rs b/src/tools/rust-analyzer/crates/hir-expand/src/builtin/quote.rs index 70c38d4d7c7..84dd4a24d90 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/builtin/quote.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/builtin/quote.rs @@ -229,8 +229,6 @@ mod tests { use span::{Edition, ROOT_ERASED_FILE_AST_ID, SpanAnchor, SyntaxContext}; use syntax::{TextRange, TextSize}; - use super::quote; - const DUMMY: tt::Span = tt::Span { range: TextRange::empty(TextSize::new(0)), anchor: SpanAnchor { diff --git a/src/tools/rustfmt/src/config/mod.rs b/src/tools/rustfmt/src/config/mod.rs index 6b63108c037..525953bf445 100644 --- a/src/tools/rustfmt/src/config/mod.rs +++ b/src/tools/rustfmt/src/config/mod.rs @@ -516,7 +516,6 @@ mod test { #[allow(dead_code)] mod mock { use super::super::*; - use crate::config_option_with_style_edition_default; use rustfmt_config_proc_macro::config_type; #[config_type] diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs index 247080102fb..c76b46ec2bf 100644 --- a/src/tools/tidy/src/deps.rs +++ b/src/tools/tidy/src/deps.rs @@ -578,6 +578,7 @@ const PERMITTED_STDLIB_DEPENDENCIES: &[&str] = &[ "rustc-literal-escaper", "shlex", "unwinding", + "vex-sdk", "wasi", "windows-sys", "windows-targets", diff --git a/tests/codegen-llvm/global-allocator-attributes.rs b/tests/codegen-llvm/global-allocator-attributes.rs new file mode 100644 index 00000000000..472ca772075 --- /dev/null +++ b/tests/codegen-llvm/global-allocator-attributes.rs @@ -0,0 +1,41 @@ +//@ compile-flags: -C opt-level=3 +#![crate_type = "lib"] + +mod foobar { + use std::alloc::{GlobalAlloc, Layout}; + + struct Allocator; + + unsafe impl GlobalAlloc for Allocator { + unsafe fn alloc(&self, layout: Layout) -> *mut u8 { + // CHECK-LABEL: ; __rustc::__rust_alloc + // CHECK-NEXT: ; Function Attrs: {{.*}}allockind("alloc,uninitialized,aligned") allocsize(0){{.*}} + // CHECK-NEXT: define{{.*}} noalias{{.*}} ptr @{{.*}}__rust_alloc(i[[SIZE:[0-9]+]] {{.*}}%size, i[[SIZE]] allocalign{{.*}} %align) + panic!() + } + + unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) { + // CHECK-LABEL: ; __rustc::__rust_dealloc + // CHECK-NEXT: ; Function Attrs: {{.*}}allockind("free"){{.*}} + // CHECK-NEXT: define{{.*}} void @{{.*}}__rust_dealloc(ptr allocptr{{.*}} %ptr, i[[SIZE]] {{.*}} %size, i[[SIZE]] {{.*}} %align) + panic!() + } + + unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 { + // CHECK-LABEL: ; __rustc::__rust_realloc + // CHECK-NEXT: ; Function Attrs: {{.*}}allockind("realloc,aligned") allocsize(3){{.*}} + // CHECK-NEXT: define{{.*}} noalias{{.*}} ptr @{{.*}}__rust_realloc(ptr allocptr{{.*}} %ptr, i[[SIZE]] {{.*}} %size, i[[SIZE]] allocalign{{.*}} %align, i[[SIZE]] {{.*}} %new_size) + panic!() + } + + unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8 { + // CHECK-LABEL: ; __rustc::__rust_alloc_zeroed + // CHECK-NEXT: ; Function Attrs: {{.*}}allockind("alloc,zeroed,aligned") allocsize(0){{.*}} + // CHECK-NEXT: define{{.*}} noalias{{.*}} ptr @{{.*}}__rust_alloc_zeroed(i[[SIZE]] {{.*}} %size, i[[SIZE]] allocalign{{.*}} %align) + panic!() + } + } + + #[global_allocator] + static GLOBAL: Allocator = Allocator; +} diff --git a/tests/codegen-llvm/pattern_type_symbols.rs b/tests/codegen-llvm/pattern_type_symbols.rs index e86a9ef27de..a90262ff12d 100644 --- a/tests/codegen-llvm/pattern_type_symbols.rs +++ b/tests/codegen-llvm/pattern_type_symbols.rs @@ -16,7 +16,7 @@ pub fn bar() { // CHECK: call pattern_type_symbols::foo::<u32> // CHECK: call void @_RINvC[[CRATE_IDENT:[a-zA-Z0-9]{12}]]_20pattern_type_symbols3foomEB2_ foo::<u32>(); - // CHECK: call pattern_type_symbols::foo::<(u32, [(); 0], [(); 999999999])> - // CHECK: call void @_RINvC[[CRATE_IDENT]]_20pattern_type_symbols3fooTmAum0_Aum3b9ac9ff_EEB2_ + // CHECK: call pattern_type_symbols::foo::<u32 is 0..=999999999> + // CHECK: call void @_RINvC[[CRATE_IDENT]]_20pattern_type_symbols3fooWmRm0_m3b9ac9ff_EB2_ foo::<NanoU32>(); } diff --git a/tests/coverage/issue-83601.cov-map b/tests/coverage/issue-83601.cov-map index d1d751ff24b..e42b5591c0f 100644 --- a/tests/coverage/issue-83601.cov-map +++ b/tests/coverage/issue-83601.cov-map @@ -1,30 +1,22 @@ Function name: issue_83601::main -Raw bytes (76): 0x[01, 01, 01, 05, 09, 0e, 01, 06, 01, 00, 0a, 01, 01, 09, 00, 0c, 01, 00, 0f, 00, 15, 01, 01, 05, 00, 0f, 05, 01, 09, 00, 0c, 05, 00, 0f, 00, 15, 05, 01, 05, 00, 0f, 02, 01, 05, 00, 0d, 02, 00, 0e, 00, 14, 02, 01, 05, 00, 0d, 02, 00, 0e, 00, 14, 02, 01, 05, 00, 0d, 02, 00, 0e, 00, 14, 02, 01, 01, 00, 02] +Raw bytes (74): 0x[01, 01, 00, 0e, 01, 06, 01, 00, 0a, 01, 01, 09, 00, 0c, 01, 00, 0f, 00, 15, 01, 01, 05, 00, 0f, 01, 01, 09, 00, 0c, 01, 00, 0f, 00, 15, 01, 01, 05, 00, 0f, 01, 01, 05, 00, 0d, 01, 00, 0e, 00, 14, 01, 01, 05, 00, 0d, 01, 00, 0e, 00, 14, 01, 01, 05, 00, 0d, 01, 00, 0e, 00, 14, 01, 01, 01, 00, 02] Number of files: 1 - file 0 => $DIR/issue-83601.rs -Number of expressions: 1 -- expression 0 operands: lhs = Counter(1), rhs = Counter(2) +Number of expressions: 0 Number of file 0 mappings: 14 - Code(Counter(0)) at (prev + 6, 1) to (start + 0, 10) - Code(Counter(0)) at (prev + 1, 9) to (start + 0, 12) - Code(Counter(0)) at (prev + 0, 15) to (start + 0, 21) - Code(Counter(0)) at (prev + 1, 5) to (start + 0, 15) -- Code(Counter(1)) at (prev + 1, 9) to (start + 0, 12) -- Code(Counter(1)) at (prev + 0, 15) to (start + 0, 21) -- Code(Counter(1)) at (prev + 1, 5) to (start + 0, 15) -- Code(Expression(0, Sub)) at (prev + 1, 5) to (start + 0, 13) - = (c1 - c2) -- Code(Expression(0, Sub)) at (prev + 0, 14) to (start + 0, 20) - = (c1 - c2) -- Code(Expression(0, Sub)) at (prev + 1, 5) to (start + 0, 13) - = (c1 - c2) -- Code(Expression(0, Sub)) at (prev + 0, 14) to (start + 0, 20) - = (c1 - c2) -- Code(Expression(0, Sub)) at (prev + 1, 5) to (start + 0, 13) - = (c1 - c2) -- Code(Expression(0, Sub)) at (prev + 0, 14) to (start + 0, 20) - = (c1 - c2) -- Code(Expression(0, Sub)) at (prev + 1, 1) to (start + 0, 2) - = (c1 - c2) -Highest counter ID seen: c1 +- Code(Counter(0)) at (prev + 1, 9) to (start + 0, 12) +- Code(Counter(0)) at (prev + 0, 15) to (start + 0, 21) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 13) +- Code(Counter(0)) at (prev + 0, 14) to (start + 0, 20) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 13) +- Code(Counter(0)) at (prev + 0, 14) to (start + 0, 20) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 13) +- Code(Counter(0)) at (prev + 0, 14) to (start + 0, 20) +- Code(Counter(0)) at (prev + 1, 1) to (start + 0, 2) +Highest counter ID seen: c0 diff --git a/tests/coverage/issue-84561.cov-map b/tests/coverage/issue-84561.cov-map index 2b643ea599e..e5bb1afdcc2 100644 --- a/tests/coverage/issue-84561.cov-map +++ b/tests/coverage/issue-84561.cov-map @@ -73,20 +73,20 @@ Number of file 0 mappings: 4 Highest counter ID seen: c0 Function name: issue_84561::test3 -Raw bytes (409): 0x[01, 01, 0a, 0d, 11, 0d, 15, 0d, 19, 1d, 21, 29, 2d, 25, 29, 25, 29, 25, 29, 27, 31, 29, 2d, 4d, 01, 08, 01, 00, 0b, 01, 01, 09, 00, 10, 01, 00, 13, 00, 2e, 01, 01, 09, 00, 0c, 01, 00, 0f, 00, 15, 01, 01, 05, 00, 0f, 05, 01, 09, 00, 0c, 05, 00, 0f, 00, 15, 05, 01, 05, 00, 0f, 09, 01, 05, 00, 0d, 09, 00, 0e, 00, 14, 09, 01, 05, 00, 0d, 09, 00, 0e, 00, 14, 09, 01, 05, 00, 0d, 09, 00, 0e, 00, 14, 09, 02, 05, 00, 0f, 09, 01, 05, 00, 0f, 09, 01, 05, 00, 0f, 09, 01, 09, 00, 0c, 09, 00, 0f, 00, 15, 09, 01, 05, 00, 0f, 0d, 01, 05, 00, 0f, 0d, 01, 05, 00, 0f, 00, 00, 20, 00, 30, 0d, 01, 05, 00, 0d, 0d, 00, 0e, 00, 14, 0d, 01, 05, 00, 0d, 0d, 00, 0e, 00, 14, 0d, 02, 05, 00, 0f, 00, 00, 20, 00, 24, 00, 00, 29, 00, 30, 00, 00, 33, 00, 41, 00, 00, 4b, 00, 5a, 0d, 01, 05, 00, 0f, 00, 05, 09, 00, 0d, 00, 03, 09, 00, 10, 00, 02, 0d, 00, 1b, 00, 02, 0d, 00, 1c, 0d, 04, 09, 00, 10, 0d, 00, 13, 00, 2e, 0d, 02, 05, 00, 0f, 0d, 04, 05, 00, 0f, 0d, 04, 05, 00, 0f, 0d, 04, 09, 00, 0c, 0d, 00, 0f, 00, 15, 0d, 01, 05, 00, 0f, 0d, 04, 08, 00, 0f, 11, 01, 09, 00, 13, 02, 05, 09, 00, 13, 0d, 05, 08, 00, 0f, 15, 01, 09, 00, 13, 00, 03, 0d, 00, 1d, 06, 03, 09, 00, 13, 00, 03, 0d, 00, 1d, 0d, 03, 05, 00, 0f, 0d, 01, 0c, 00, 13, 19, 01, 0d, 00, 13, 0a, 02, 0d, 00, 13, 1d, 04, 05, 00, 0f, 1d, 02, 0c, 00, 13, 21, 01, 0d, 00, 13, 0e, 02, 0d, 00, 13, 27, 03, 05, 00, 0f, 25, 01, 0c, 00, 13, 29, 01, 0d, 00, 17, 29, 04, 0d, 00, 13, 1e, 02, 0d, 00, 17, 1e, 01, 14, 00, 1b, 00, 01, 15, 00, 1b, 1e, 02, 15, 00, 1b, 2d, 04, 0d, 00, 13, 22, 03, 09, 00, 19, 31, 02, 05, 00, 0f, 31, 03, 09, 00, 22, 00, 02, 05, 00, 0f, 00, 03, 09, 00, 2c, 00, 02, 01, 00, 02] +Raw bytes (409): 0x[01, 01, 0a, 01, 05, 01, 09, 01, 0d, 11, 15, 1d, 21, 19, 1d, 19, 1d, 19, 1d, 27, 25, 1d, 21, 4d, 01, 08, 01, 00, 0b, 01, 01, 09, 00, 10, 01, 00, 13, 00, 2e, 01, 01, 09, 00, 0c, 01, 00, 0f, 00, 15, 01, 01, 05, 00, 0f, 01, 01, 09, 00, 0c, 01, 00, 0f, 00, 15, 01, 01, 05, 00, 0f, 01, 01, 05, 00, 0d, 01, 00, 0e, 00, 14, 01, 01, 05, 00, 0d, 01, 00, 0e, 00, 14, 01, 01, 05, 00, 0d, 01, 00, 0e, 00, 14, 01, 02, 05, 00, 0f, 01, 01, 05, 00, 0f, 01, 01, 05, 00, 0f, 01, 01, 09, 00, 0c, 01, 00, 0f, 00, 15, 01, 01, 05, 00, 0f, 01, 01, 05, 00, 0f, 01, 01, 05, 00, 0f, 00, 00, 20, 00, 30, 01, 01, 05, 00, 0d, 01, 00, 0e, 00, 14, 01, 01, 05, 00, 0d, 01, 00, 0e, 00, 14, 01, 02, 05, 00, 0f, 00, 00, 20, 00, 24, 00, 00, 29, 00, 30, 00, 00, 33, 00, 41, 00, 00, 4b, 00, 5a, 01, 01, 05, 00, 0f, 00, 05, 09, 00, 0d, 00, 03, 09, 00, 10, 00, 02, 0d, 00, 1b, 00, 02, 0d, 00, 1c, 01, 04, 09, 00, 10, 01, 00, 13, 00, 2e, 01, 02, 05, 00, 0f, 01, 04, 05, 00, 0f, 01, 04, 05, 00, 0f, 01, 04, 09, 00, 0c, 01, 00, 0f, 00, 15, 01, 01, 05, 00, 0f, 01, 04, 08, 00, 0f, 05, 01, 09, 00, 13, 02, 05, 09, 00, 13, 01, 05, 08, 00, 0f, 09, 01, 09, 00, 13, 00, 03, 0d, 00, 1d, 06, 03, 09, 00, 13, 00, 03, 0d, 00, 1d, 01, 03, 05, 00, 0f, 01, 01, 0c, 00, 13, 0d, 01, 0d, 00, 13, 0a, 02, 0d, 00, 13, 11, 04, 05, 00, 0f, 11, 02, 0c, 00, 13, 15, 01, 0d, 00, 13, 0e, 02, 0d, 00, 13, 27, 03, 05, 00, 0f, 19, 01, 0c, 00, 13, 1d, 01, 0d, 00, 17, 1d, 04, 0d, 00, 13, 1e, 02, 0d, 00, 17, 1e, 01, 14, 00, 1b, 00, 01, 15, 00, 1b, 1e, 02, 15, 00, 1b, 21, 04, 0d, 00, 13, 22, 03, 09, 00, 19, 25, 02, 05, 00, 0f, 25, 03, 09, 00, 22, 00, 02, 05, 00, 0f, 00, 03, 09, 00, 2c, 00, 02, 01, 00, 02] Number of files: 1 - file 0 => $DIR/issue-84561.rs Number of expressions: 10 -- expression 0 operands: lhs = Counter(3), rhs = Counter(4) -- expression 1 operands: lhs = Counter(3), rhs = Counter(5) -- expression 2 operands: lhs = Counter(3), rhs = Counter(6) -- expression 3 operands: lhs = Counter(7), rhs = Counter(8) -- expression 4 operands: lhs = Counter(10), rhs = Counter(11) -- expression 5 operands: lhs = Counter(9), rhs = Counter(10) -- expression 6 operands: lhs = Counter(9), rhs = Counter(10) -- expression 7 operands: lhs = Counter(9), rhs = Counter(10) -- expression 8 operands: lhs = Expression(9, Add), rhs = Counter(12) -- expression 9 operands: lhs = Counter(10), rhs = Counter(11) +- expression 0 operands: lhs = Counter(0), rhs = Counter(1) +- expression 1 operands: lhs = Counter(0), rhs = Counter(2) +- expression 2 operands: lhs = Counter(0), rhs = Counter(3) +- expression 3 operands: lhs = Counter(4), rhs = Counter(5) +- expression 4 operands: lhs = Counter(7), rhs = Counter(8) +- expression 5 operands: lhs = Counter(6), rhs = Counter(7) +- expression 6 operands: lhs = Counter(6), rhs = Counter(7) +- expression 7 operands: lhs = Counter(6), rhs = Counter(7) +- expression 8 operands: lhs = Expression(9, Add), rhs = Counter(9) +- expression 9 operands: lhs = Counter(7), rhs = Counter(8) Number of file 0 mappings: 77 - Code(Counter(0)) at (prev + 8, 1) to (start + 0, 11) - Code(Counter(0)) at (prev + 1, 9) to (start + 0, 16) @@ -94,85 +94,85 @@ Number of file 0 mappings: 77 - Code(Counter(0)) at (prev + 1, 9) to (start + 0, 12) - Code(Counter(0)) at (prev + 0, 15) to (start + 0, 21) - Code(Counter(0)) at (prev + 1, 5) to (start + 0, 15) -- Code(Counter(1)) at (prev + 1, 9) to (start + 0, 12) -- Code(Counter(1)) at (prev + 0, 15) to (start + 0, 21) -- Code(Counter(1)) at (prev + 1, 5) to (start + 0, 15) -- Code(Counter(2)) at (prev + 1, 5) to (start + 0, 13) -- Code(Counter(2)) at (prev + 0, 14) to (start + 0, 20) -- Code(Counter(2)) at (prev + 1, 5) to (start + 0, 13) -- Code(Counter(2)) at (prev + 0, 14) to (start + 0, 20) -- Code(Counter(2)) at (prev + 1, 5) to (start + 0, 13) -- Code(Counter(2)) at (prev + 0, 14) to (start + 0, 20) -- Code(Counter(2)) at (prev + 2, 5) to (start + 0, 15) -- Code(Counter(2)) at (prev + 1, 5) to (start + 0, 15) -- Code(Counter(2)) at (prev + 1, 5) to (start + 0, 15) -- Code(Counter(2)) at (prev + 1, 9) to (start + 0, 12) -- Code(Counter(2)) at (prev + 0, 15) to (start + 0, 21) -- Code(Counter(2)) at (prev + 1, 5) to (start + 0, 15) -- Code(Counter(3)) at (prev + 1, 5) to (start + 0, 15) -- Code(Counter(3)) at (prev + 1, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 1, 9) to (start + 0, 12) +- Code(Counter(0)) at (prev + 0, 15) to (start + 0, 21) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 13) +- Code(Counter(0)) at (prev + 0, 14) to (start + 0, 20) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 13) +- Code(Counter(0)) at (prev + 0, 14) to (start + 0, 20) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 13) +- Code(Counter(0)) at (prev + 0, 14) to (start + 0, 20) +- Code(Counter(0)) at (prev + 2, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 1, 9) to (start + 0, 12) +- Code(Counter(0)) at (prev + 0, 15) to (start + 0, 21) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 15) - Code(Zero) at (prev + 0, 32) to (start + 0, 48) -- Code(Counter(3)) at (prev + 1, 5) to (start + 0, 13) -- Code(Counter(3)) at (prev + 0, 14) to (start + 0, 20) -- Code(Counter(3)) at (prev + 1, 5) to (start + 0, 13) -- Code(Counter(3)) at (prev + 0, 14) to (start + 0, 20) -- Code(Counter(3)) at (prev + 2, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 13) +- Code(Counter(0)) at (prev + 0, 14) to (start + 0, 20) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 13) +- Code(Counter(0)) at (prev + 0, 14) to (start + 0, 20) +- Code(Counter(0)) at (prev + 2, 5) to (start + 0, 15) - Code(Zero) at (prev + 0, 32) to (start + 0, 36) - Code(Zero) at (prev + 0, 41) to (start + 0, 48) - Code(Zero) at (prev + 0, 51) to (start + 0, 65) - Code(Zero) at (prev + 0, 75) to (start + 0, 90) -- Code(Counter(3)) at (prev + 1, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 15) - Code(Zero) at (prev + 5, 9) to (start + 0, 13) - Code(Zero) at (prev + 3, 9) to (start + 0, 16) - Code(Zero) at (prev + 2, 13) to (start + 0, 27) - Code(Zero) at (prev + 2, 13) to (start + 0, 28) -- Code(Counter(3)) at (prev + 4, 9) to (start + 0, 16) -- Code(Counter(3)) at (prev + 0, 19) to (start + 0, 46) -- Code(Counter(3)) at (prev + 2, 5) to (start + 0, 15) -- Code(Counter(3)) at (prev + 4, 5) to (start + 0, 15) -- Code(Counter(3)) at (prev + 4, 5) to (start + 0, 15) -- Code(Counter(3)) at (prev + 4, 9) to (start + 0, 12) -- Code(Counter(3)) at (prev + 0, 15) to (start + 0, 21) -- Code(Counter(3)) at (prev + 1, 5) to (start + 0, 15) -- Code(Counter(3)) at (prev + 4, 8) to (start + 0, 15) -- Code(Counter(4)) at (prev + 1, 9) to (start + 0, 19) +- Code(Counter(0)) at (prev + 4, 9) to (start + 0, 16) +- Code(Counter(0)) at (prev + 0, 19) to (start + 0, 46) +- Code(Counter(0)) at (prev + 2, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 4, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 4, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 4, 9) to (start + 0, 12) +- Code(Counter(0)) at (prev + 0, 15) to (start + 0, 21) +- Code(Counter(0)) at (prev + 1, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 4, 8) to (start + 0, 15) +- Code(Counter(1)) at (prev + 1, 9) to (start + 0, 19) - Code(Expression(0, Sub)) at (prev + 5, 9) to (start + 0, 19) - = (c3 - c4) -- Code(Counter(3)) at (prev + 5, 8) to (start + 0, 15) -- Code(Counter(5)) at (prev + 1, 9) to (start + 0, 19) + = (c0 - c1) +- Code(Counter(0)) at (prev + 5, 8) to (start + 0, 15) +- Code(Counter(2)) at (prev + 1, 9) to (start + 0, 19) - Code(Zero) at (prev + 3, 13) to (start + 0, 29) - Code(Expression(1, Sub)) at (prev + 3, 9) to (start + 0, 19) - = (c3 - c5) + = (c0 - c2) - Code(Zero) at (prev + 3, 13) to (start + 0, 29) -- Code(Counter(3)) at (prev + 3, 5) to (start + 0, 15) -- Code(Counter(3)) at (prev + 1, 12) to (start + 0, 19) -- Code(Counter(6)) at (prev + 1, 13) to (start + 0, 19) +- Code(Counter(0)) at (prev + 3, 5) to (start + 0, 15) +- Code(Counter(0)) at (prev + 1, 12) to (start + 0, 19) +- Code(Counter(3)) at (prev + 1, 13) to (start + 0, 19) - Code(Expression(2, Sub)) at (prev + 2, 13) to (start + 0, 19) - = (c3 - c6) -- Code(Counter(7)) at (prev + 4, 5) to (start + 0, 15) -- Code(Counter(7)) at (prev + 2, 12) to (start + 0, 19) -- Code(Counter(8)) at (prev + 1, 13) to (start + 0, 19) + = (c0 - c3) +- Code(Counter(4)) at (prev + 4, 5) to (start + 0, 15) +- Code(Counter(4)) at (prev + 2, 12) to (start + 0, 19) +- Code(Counter(5)) at (prev + 1, 13) to (start + 0, 19) - Code(Expression(3, Sub)) at (prev + 2, 13) to (start + 0, 19) - = (c7 - c8) + = (c4 - c5) - Code(Expression(9, Add)) at (prev + 3, 5) to (start + 0, 15) - = (c10 + c11) -- Code(Counter(9)) at (prev + 1, 12) to (start + 0, 19) -- Code(Counter(10)) at (prev + 1, 13) to (start + 0, 23) -- Code(Counter(10)) at (prev + 4, 13) to (start + 0, 19) + = (c7 + c8) +- Code(Counter(6)) at (prev + 1, 12) to (start + 0, 19) +- Code(Counter(7)) at (prev + 1, 13) to (start + 0, 23) +- Code(Counter(7)) at (prev + 4, 13) to (start + 0, 19) - Code(Expression(7, Sub)) at (prev + 2, 13) to (start + 0, 23) - = (c9 - c10) + = (c6 - c7) - Code(Expression(7, Sub)) at (prev + 1, 20) to (start + 0, 27) - = (c9 - c10) + = (c6 - c7) - Code(Zero) at (prev + 1, 21) to (start + 0, 27) - Code(Expression(7, Sub)) at (prev + 2, 21) to (start + 0, 27) - = (c9 - c10) -- Code(Counter(11)) at (prev + 4, 13) to (start + 0, 19) + = (c6 - c7) +- Code(Counter(8)) at (prev + 4, 13) to (start + 0, 19) - Code(Expression(8, Sub)) at (prev + 3, 9) to (start + 0, 25) - = ((c10 + c11) - c12) -- Code(Counter(12)) at (prev + 2, 5) to (start + 0, 15) -- Code(Counter(12)) at (prev + 3, 9) to (start + 0, 34) + = ((c7 + c8) - c9) +- Code(Counter(9)) at (prev + 2, 5) to (start + 0, 15) +- Code(Counter(9)) at (prev + 3, 9) to (start + 0, 34) - Code(Zero) at (prev + 2, 5) to (start + 0, 15) - Code(Zero) at (prev + 3, 9) to (start + 0, 44) - Code(Zero) at (prev + 2, 1) to (start + 0, 2) -Highest counter ID seen: c12 +Highest counter ID seen: c9 diff --git a/tests/run-make/linker-warning/rmake.rs b/tests/run-make/linker-warning/rmake.rs index 9ea706af503..b0c40dd171d 100644 --- a/tests/run-make/linker-warning/rmake.rs +++ b/tests/run-make/linker-warning/rmake.rs @@ -61,7 +61,6 @@ fn main() { diff() .expected_file("short-error.txt") .actual_text("(linker error)", out.stderr()) - .normalize(r#"/rustc[^/_-]*/"#, "/rustc/") .normalize("libpanic_abort", "libpanic_unwind") .normalize( regex::escape( diff --git a/tests/rustdoc-gui/search-title.goml b/tests/rustdoc-gui/search-title.goml index 83321a05f2b..5808ed845a3 100644 --- a/tests/rustdoc-gui/search-title.goml +++ b/tests/rustdoc-gui/search-title.goml @@ -20,3 +20,15 @@ assert-document-property: {"title": '"another one" Search - Rust'} press-key: "Escape" assert-document-property: {"title": |title|} + +// check that all.html does it correctly, too. +go-to: "file://" + |DOC_PATH| + "/test_docs/all.html" +assert-document-property: {"title": "List of all items in this crate"} +call-function: ("perform-search", {"query": "verify"}) +assert-document-property: {"title": '"verify" Search - Rust'} + +// check that index.html does it correctly, too. +go-to: "file://" + |DOC_PATH| + "/index.html" +assert-document-property: {"title": "Index of crates"} +call-function: ("perform-search", {"query": "verify"}) +assert-document-property: {"title": '"verify" Search - Rust'} diff --git a/tests/rustdoc-gui/src/test_docs/lib.rs b/tests/rustdoc-gui/src/test_docs/lib.rs index 42f2fbd93b1..c0771583ab6 100644 --- a/tests/rustdoc-gui/src/test_docs/lib.rs +++ b/tests/rustdoc-gui/src/test_docs/lib.rs @@ -1,3 +1,4 @@ +//@ compile-flags: --enable-index-page -Z unstable-options //! The point of this crate is to be able to have enough different "kinds" of //! documentation generated so we can test each different features. #![doc(html_playground_url="https://play.rust-lang.org/")] @@ -459,10 +460,10 @@ pub fn safe_fn() {} #[repr(C)] pub struct WithGenerics<T: TraitWithNoDocblocks, S = String, E = WhoLetTheDogOut, P = i8> { - s: S, - t: T, - e: E, - p: P, + pub s: S, + pub t: T, + pub e: E, + pub p: P, } pub struct StructWithPublicUndocumentedFields { diff --git a/tests/rustdoc-ui/intra-doc/type-alias-primitive-suggestion.rs b/tests/rustdoc-ui/intra-doc/type-alias-primitive-suggestion.rs new file mode 100644 index 00000000000..c4527c626d9 --- /dev/null +++ b/tests/rustdoc-ui/intra-doc/type-alias-primitive-suggestion.rs @@ -0,0 +1,21 @@ +// Ensure that no warning is emitted if the disambiguator is used for type alias. +// Regression test for <https://github.com/rust-lang/rust/issues/146855>. + +#![deny(rustdoc::broken_intra_doc_links)] + +pub struct Foo; + +#[allow(non_camel_case_types)] +pub type f32 = Foo; + +/// This function returns [`f32`]. +//~^ ERROR: `f32` is both a type alias and a primitive type +//~| HELP: to link to the type alias, prefix with `tyalias@` +//~| HELP: to link to the primitive type, prefix with `prim@` +pub fn my_fn() -> f32 {} + +/// This function returns [type@f32]. +//~^ ERROR: `f32` is both a type alias and a primitive type +//~| HELP: to link to the type alias, prefix with `tyalias@` +//~| HELP: to link to the primitive type, prefix with `prim@` +pub fn my_fn2() -> f32 {} diff --git a/tests/rustdoc-ui/intra-doc/type-alias-primitive-suggestion.stderr b/tests/rustdoc-ui/intra-doc/type-alias-primitive-suggestion.stderr new file mode 100644 index 00000000000..c99e7d1d104 --- /dev/null +++ b/tests/rustdoc-ui/intra-doc/type-alias-primitive-suggestion.stderr @@ -0,0 +1,39 @@ +error: `f32` is both a type alias and a primitive type + --> $DIR/type-alias-primitive-suggestion.rs:11:29 + | +LL | /// This function returns [`f32`]. + | ^^^ ambiguous link + | +note: the lint level is defined here + --> $DIR/type-alias-primitive-suggestion.rs:4:9 + | +LL | #![deny(rustdoc::broken_intra_doc_links)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +help: to link to the type alias, prefix with `tyalias@` + | +LL | /// This function returns [`tyalias@f32`]. + | ++++++++ +help: to link to the primitive type, prefix with `prim@` + | +LL | /// This function returns [`prim@f32`]. + | +++++ + +error: `f32` is both a type alias and a primitive type + --> $DIR/type-alias-primitive-suggestion.rs:17:28 + | +LL | /// This function returns [type@f32]. + | ^^^^^^^^ ambiguous link + | +help: to link to the type alias, prefix with `tyalias@` + | +LL - /// This function returns [type@f32]. +LL + /// This function returns [tyalias@f32]. + | +help: to link to the primitive type, prefix with `prim@` + | +LL - /// This function returns [type@f32]. +LL + /// This function returns [prim@f32]. + | + +error: aborting due to 2 previous errors + diff --git a/tests/rustdoc-ui/intra-doc/type-alias-primitive.rs b/tests/rustdoc-ui/intra-doc/type-alias-primitive.rs new file mode 100644 index 00000000000..62b2c83eeca --- /dev/null +++ b/tests/rustdoc-ui/intra-doc/type-alias-primitive.rs @@ -0,0 +1,14 @@ +// Ensure that no warning is emitted if the disambiguator is used for type alias. +// Regression test for <https://github.com/rust-lang/rust/issues/146855>. + +//@ check-pass + +#![deny(rustdoc::broken_intra_doc_links)] + +pub struct Foo; + +#[allow(non_camel_case_types)] +pub type f32 = Foo; + +/// This function returns [`tyalias@f32`] and not [`prim@f32`]. +pub fn my_fn() -> f32 {} diff --git a/tests/rustdoc/attribute-rendering.rs b/tests/rustdoc/attribute-rendering.rs deleted file mode 100644 index fb40d0a9887..00000000000 --- a/tests/rustdoc/attribute-rendering.rs +++ /dev/null @@ -1,8 +0,0 @@ -#![crate_name = "foo"] - -//@ has 'foo/fn.f.html' -//@ has - //*[@'class="code-attribute"]' '#[unsafe(export_name = "f")]' -//@ has - //*[@'class="rust item-decl"]' 'pub fn f()' -#[unsafe(export_name = "\ -f")] -pub fn f() {} diff --git a/tests/rustdoc/attributes.rs b/tests/rustdoc/attributes.rs index 33e4e31bec6..429a42a7252 100644 --- a/tests/rustdoc/attributes.rs +++ b/tests/rustdoc/attributes.rs @@ -9,6 +9,18 @@ pub extern "C" fn f() {} #[unsafe(export_name = "bar")] pub extern "C" fn g() {} +//@ has foo/fn.escape_special.html '//*[@class="code-attribute"]' \ +// '#[unsafe(export_name = "\n\"\n")]' +#[unsafe(export_name = "\n\" +")] +pub extern "C" fn escape_special() {} + +// issue: <https://github.com/rust-lang/rust/issues/142835> +//@ has foo/fn.escape_html.html '//*[@class="code-attribute"]' \ +// '#[unsafe(export_name = "<script>alert()</script>")]' +#[unsafe(export_name = "<script>alert()</script>")] +pub extern "C" fn escape_html() {} + //@ has foo/fn.example.html '//*[@class="code-attribute"]' '#[unsafe(link_section = ".text")]' #[unsafe(link_section = ".text")] pub extern "C" fn example() {} diff --git a/tests/rustdoc/auxiliary/ext-repr.rs b/tests/rustdoc/auxiliary/ext-repr.rs new file mode 100644 index 00000000000..25acaa49449 --- /dev/null +++ b/tests/rustdoc/auxiliary/ext-repr.rs @@ -0,0 +1,5 @@ +#[repr(i8)] +pub enum ReprI8 { + Var0, + Var1, +} diff --git a/tests/rustdoc/inline_cross/attributes.rs b/tests/rustdoc/inline_cross/attributes.rs index 4747f8ad67c..1657b7bdc8f 100644 --- a/tests/rustdoc/inline_cross/attributes.rs +++ b/tests/rustdoc/inline_cross/attributes.rs @@ -1,7 +1,20 @@ +// Ensure that we render attributes on inlined cross-crate re-exported items. +// issue: <https://github.com/rust-lang/rust/issues/144004> + //@ aux-crate:attributes=attributes.rs //@ edition:2021 #![crate_name = "user"] -//@ has 'user/struct.NonExhaustive.html' -//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[non_exhaustive]' +//@ has 'user/fn.no_mangle.html' '//pre[@class="rust item-decl"]' '#[unsafe(no_mangle)]' +pub use attributes::no_mangle; + +//@ has 'user/fn.link_section.html' '//pre[@class="rust item-decl"]' \ +// '#[unsafe(link_section = ".here")]' +pub use attributes::link_section; + +//@ has 'user/fn.export_name.html' '//pre[@class="rust item-decl"]' \ +// '#[unsafe(export_name = "exonym")]' +pub use attributes::export_name; + +//@ has 'user/struct.NonExhaustive.html' '//pre[@class="rust item-decl"]' '#[non_exhaustive]' pub use attributes::NonExhaustive; diff --git a/tests/rustdoc/inline_cross/auxiliary/attributes.rs b/tests/rustdoc/inline_cross/auxiliary/attributes.rs index c6f155d4ba5..6068d385585 100644 --- a/tests/rustdoc/inline_cross/auxiliary/attributes.rs +++ b/tests/rustdoc/inline_cross/auxiliary/attributes.rs @@ -1,2 +1,11 @@ +#[unsafe(no_mangle)] +pub fn no_mangle() {} + +#[unsafe(link_section = ".here")] +pub fn link_section() {} + +#[unsafe(export_name = "exonym")] +pub fn export_name() {} + #[non_exhaustive] pub struct NonExhaustive; diff --git a/tests/rustdoc/inline_cross/auxiliary/repr.rs b/tests/rustdoc/inline_cross/auxiliary/repr.rs deleted file mode 100644 index 0211e1a8658..00000000000 --- a/tests/rustdoc/inline_cross/auxiliary/repr.rs +++ /dev/null @@ -1,42 +0,0 @@ -#![feature(repr_simd)] - -#[repr(C, align(8))] -pub struct ReprC { - field: u8, -} -#[repr(simd, packed(2))] -pub struct ReprSimd { - field: [u8; 1], -} -#[repr(transparent)] -pub struct ReprTransparent { - pub field: u8, -} -#[repr(isize)] -pub enum ReprIsize { - Bla, -} -#[repr(u8)] -pub enum ReprU8 { - Bla, -} - -#[repr(transparent)] // private -pub struct ReprTransparentPrivField { - field: u32, // non-1-ZST field -} - -#[repr(transparent)] // public -pub struct ReprTransparentPriv1ZstFields { - marker0: Marker, - pub main: u64, // non-1-ZST field - marker1: Marker, -} - -#[repr(transparent)] // private -pub struct ReprTransparentPrivFieldPub1ZstFields { - main: [u16; 0], // non-1-ZST field - pub marker: Marker, -} - -pub struct Marker; // 1-ZST diff --git a/tests/rustdoc/inline_cross/repr.rs b/tests/rustdoc/inline_cross/repr.rs deleted file mode 100644 index d13e560b8d7..00000000000 --- a/tests/rustdoc/inline_cross/repr.rs +++ /dev/null @@ -1,40 +0,0 @@ -// Regression test for <https://github.com/rust-lang/rust/issues/110698>. -// This test ensures that the re-exported items still have the `#[repr(...)]` attribute. - -//@ aux-build:repr.rs - -#![crate_name = "foo"] - -extern crate repr; - -//@ has 'foo/struct.ReprC.html' -//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(C, align(8))]' -pub use repr::ReprC; -//@ has 'foo/struct.ReprSimd.html' -//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(simd, packed(2))]' -pub use repr::ReprSimd; -//@ has 'foo/struct.ReprTransparent.html' -//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' -pub use repr::ReprTransparent; -//@ has 'foo/enum.ReprIsize.html' -//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(isize)]' -pub use repr::ReprIsize; -//@ has 'foo/enum.ReprU8.html' -//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(u8)]' -pub use repr::ReprU8; - -// Regression test for <https://github.com/rust-lang/rust/issues/90435>. -// Check that we show `#[repr(transparent)]` iff the non-1-ZST field is public or at least one -// field is public in case all fields are 1-ZST fields. - -//@ has 'foo/struct.ReprTransparentPrivField.html' -//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' -pub use repr::ReprTransparentPrivField; - -//@ has 'foo/struct.ReprTransparentPriv1ZstFields.html' -//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' -pub use repr::ReprTransparentPriv1ZstFields; - -//@ has 'foo/struct.ReprTransparentPrivFieldPub1ZstFields.html' -//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' -pub use repr::ReprTransparentPrivFieldPub1ZstFields; diff --git a/tests/rustdoc/intra-doc/type-alias-primitive.rs b/tests/rustdoc/intra-doc/type-alias-primitive.rs new file mode 100644 index 00000000000..7504166cbcc --- /dev/null +++ b/tests/rustdoc/intra-doc/type-alias-primitive.rs @@ -0,0 +1,21 @@ +// Ensure that no warning is emitted if the disambiguator is used for type alias. +// Regression test for <https://github.com/rust-lang/rust/issues/146855>. + +#![crate_name = "foo"] +#![deny(rustdoc::broken_intra_doc_links)] + +pub struct Foo; + +#[allow(non_camel_case_types)] +pub type f32 = Foo; + +/// This function returns [`tyalias@f32`] and not [bla][`prim@f32`]. +//@ has 'foo/fn.my_fn.html' +//@ has - '//a[@href="type.f32.html"]' "f32" +//@ has - '//a[@href="{{channel}}/std/primitive.f32.html"]' "bla" +pub fn my_fn() -> f32 { 0. } + +/// This function returns [`typealias@f32`]. +//@ has 'foo/fn.my_other_fn.html' +//@ has - '//a[@href="type.f32.html"]' "f32" +pub fn my_other_fn() -> f32 { 0. } diff --git a/tests/rustdoc/jump-to-def-assoc-items.rs b/tests/rustdoc/jump-to-def-assoc-items.rs new file mode 100644 index 00000000000..8cbf9906283 --- /dev/null +++ b/tests/rustdoc/jump-to-def-assoc-items.rs @@ -0,0 +1,54 @@ +// This test ensures that patterns also get a link generated. + +//@ compile-flags: -Zunstable-options --generate-link-to-definition + +#![crate_name = "foo"] + +//@ has 'src/foo/jump-to-def-assoc-items.rs.html' + +pub trait Trait { + type T; +} +pub trait Another { + type T; + const X: u32; +} + +pub struct Foo; + +impl Foo { + pub fn new() -> Self { Foo } +} + +pub struct C; + +impl C { + pub fn wat() {} +} + +pub struct Bar; +impl Trait for Bar { + type T = Foo; +} +impl Another for Bar { + type T = C; + const X: u32 = 12; +} + +pub fn bar() { + //@ has - '//a[@href="#20"]' 'new' + <Bar as Trait>::T::new(); + //@ has - '//a[@href="#26"]' 'wat' + <Bar as Another>::T::wat(); + + match 12u32 { + //@ has - '//a[@href="#14"]' 'X' + <Bar as Another>::X => {} + _ => {} + } +} + +pub struct Far { + //@ has - '//a[@href="#10"]' 'T' + x: <Bar as Trait>::T, +} diff --git a/tests/rustdoc/jump-to-def-ice-assoc-types.rs b/tests/rustdoc/jump-to-def-ice-assoc-types.rs new file mode 100644 index 00000000000..9915c53668f --- /dev/null +++ b/tests/rustdoc/jump-to-def-ice-assoc-types.rs @@ -0,0 +1,20 @@ +// This test ensures that associated types don't crash rustdoc jump to def. + +//@ compile-flags: -Zunstable-options --generate-link-to-definition + + +#![crate_name = "foo"] + +//@ has 'src/foo/jump-to-def-ice-assoc-types.rs.html' + +pub trait Trait { + type Node; +} + +pub fn y<G: Trait>() { + struct X<G>(G); + + impl<G: Trait> Trait for X<G> { + type Node = G::Node; + } +} diff --git a/tests/rustdoc/jump-to-def-ice.rs b/tests/rustdoc/jump-to-def-ice.rs new file mode 100644 index 00000000000..5578b9af3d7 --- /dev/null +++ b/tests/rustdoc/jump-to-def-ice.rs @@ -0,0 +1,24 @@ +// This test ensures that items with no body don't panic when generating +// jump to def links. + +//@ compile-flags: -Zunstable-options --generate-link-to-definition + +#![crate_name = "foo"] + +//@ has 'src/foo/jump-to-def-ice.rs.html' + +pub trait A { + type T; + type U; +} + +impl A for () { + type T = Self::U; + type U = (); +} + +pub trait C { + type X; +} + +pub struct F<T: C>(pub T::X); diff --git a/tests/rustdoc/jump-to-def/jump-to-def-doc-links-calls.rs b/tests/rustdoc/jump-to-def/jump-to-def-doc-links-calls.rs index 61856978773..55e59f23b6f 100644 --- a/tests/rustdoc/jump-to-def/jump-to-def-doc-links-calls.rs +++ b/tests/rustdoc/jump-to-def/jump-to-def-doc-links-calls.rs @@ -8,7 +8,7 @@ pub struct Bar; impl std::default::Default for Bar { - //@ has - '//a[@href="#20-22"]' 'Self::new' + //@ has - '//a[@href="#20-22"]' 'new' fn default() -> Self { Self::new() } @@ -16,7 +16,7 @@ impl std::default::Default for Bar { //@ has - '//a[@href="#8"]' 'Bar' impl Bar { - //@ has - '//a[@href="#24-26"]' 'Self::bar' + //@ has - '//a[@href="#24-26"]' 'bar' pub fn new()-> Self { Self::bar() } diff --git a/tests/rustdoc/jump-to-def/jump-to-def-pats.rs b/tests/rustdoc/jump-to-def/jump-to-def-pats.rs index 147902b44cf..852eba208db 100644 --- a/tests/rustdoc/jump-to-def/jump-to-def-pats.rs +++ b/tests/rustdoc/jump-to-def/jump-to-def-pats.rs @@ -30,13 +30,13 @@ pub fn foo() -> Result<(), ()> { impl<T, E> fmt::Display for MyEnum<T, E> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match self { - //@ has - '//a[@href="#12"]' 'Self::Ok' + //@ has - '//a[@href="#12"]' 'Ok' Self::Ok(_) => f.write_str("MyEnum::Ok"), - //@ has - '//a[@href="#13"]' 'MyEnum::Err' + //@ has - '//a[@href="#13"]' 'Err' MyEnum::Err(_) => f.write_str("MyEnum::Err"), - //@ has - '//a[@href="#14"]' 'Self::Some' + //@ has - '//a[@href="#14"]' 'Some' Self::Some(_) => f.write_str("MyEnum::Some"), - //@ has - '//a[@href="#15"]' 'Self::None' + //@ has - '//a[@href="#15"]' 'None' Self::None => f.write_str("MyEnum::None"), } } @@ -45,7 +45,7 @@ impl<T, E> fmt::Display for MyEnum<T, E> { impl X { fn p(&self) -> &str { match self { - //@ has - '//a[@href="#19"]' 'Self::A' + //@ has - '//a[@href="#19"]' 'A' Self::A => "X::A", } } diff --git a/tests/rustdoc/jump-to-def/jump-to-non-local-method.rs b/tests/rustdoc/jump-to-def/jump-to-non-local-method.rs index e2f530425f0..1d6d6b8d18f 100644 --- a/tests/rustdoc/jump-to-def/jump-to-non-local-method.rs +++ b/tests/rustdoc/jump-to-def/jump-to-non-local-method.rs @@ -21,9 +21,10 @@ pub fn bar2<T: Read>(readable: T) { } pub fn bar() { - //@ has - '//a[@href="{{channel}}/core/sync/atomic/struct.AtomicIsize.html#method.new"]' 'AtomicIsize::new' + //@ has - '//a[@href="{{channel}}/core/sync/atomic/struct.AtomicIsize.html"]' 'AtomicIsize' + //@ has - '//a[@href="{{channel}}/core/sync/atomic/struct.AtomicIsize.html#method.new"]' 'new' let _ = AtomicIsize::new(0); - //@ has - '//a[@href="#48"]' 'local_private' + //@ has - '//a[@href="#49"]' 'local_private' local_private(); } @@ -39,7 +40,7 @@ pub fn macro_call() -> Result<(), ()> { } pub fn variant() { - //@ has - '//a[@href="{{channel}}/core/cmp/enum.Ordering.html#variant.Less"]' 'Ordering::Less' + //@ has - '//a[@href="{{channel}}/core/cmp/enum.Ordering.html#variant.Less"]' 'Less' let _ = Ordering::Less; //@ has - '//a[@href="{{channel}}/core/marker/struct.PhantomData.html"]' 'PhantomData' let _: PhantomData::<usize> = PhantomData; diff --git a/tests/rustdoc/reexport/auxiliary/reexports-attrs.rs b/tests/rustdoc/reexport/auxiliary/reexports-attrs.rs deleted file mode 100644 index 96fa8209cde..00000000000 --- a/tests/rustdoc/reexport/auxiliary/reexports-attrs.rs +++ /dev/null @@ -1,14 +0,0 @@ -#[unsafe(no_mangle)] -pub fn f0() {} - -#[unsafe(link_section = ".here")] -pub fn f1() {} - -#[unsafe(export_name = "f2export")] -pub fn f2() {} - -#[repr(u8)] -pub enum T0 { V1 } - -#[non_exhaustive] -pub enum T1 {} diff --git a/tests/rustdoc/reexport/reexport-attrs.rs b/tests/rustdoc/reexport/reexport-attrs.rs deleted file mode 100644 index aec0a11c0c6..00000000000 --- a/tests/rustdoc/reexport/reexport-attrs.rs +++ /dev/null @@ -1,20 +0,0 @@ -//@ aux-build: reexports-attrs.rs - -#![crate_name = "foo"] - -extern crate reexports_attrs; - -//@ has 'foo/fn.f0.html' '//pre[@class="rust item-decl"]' '#[unsafe(no_mangle)]' -pub use reexports_attrs::f0; - -//@ has 'foo/fn.f1.html' '//pre[@class="rust item-decl"]' '#[unsafe(link_section = ".here")]' -pub use reexports_attrs::f1; - -//@ has 'foo/fn.f2.html' '//pre[@class="rust item-decl"]' '#[unsafe(export_name = "f2export")]' -pub use reexports_attrs::f2; - -//@ has 'foo/enum.T0.html' '//pre[@class="rust item-decl"]' '#[repr(u8)]' -pub use reexports_attrs::T0; - -//@ has 'foo/enum.T1.html' '//pre[@class="rust item-decl"]' '#[non_exhaustive]' -pub use reexports_attrs::T1; diff --git a/tests/rustdoc/repr.rs b/tests/rustdoc/repr.rs index f4f683b3d81..1e8fad6ec0a 100644 --- a/tests/rustdoc/repr.rs +++ b/tests/rustdoc/repr.rs @@ -1,29 +1,163 @@ -// Regression test for <https://github.com/rust-lang/rust/issues/90435>. -// Check that we show `#[repr(transparent)]` iff the non-1-ZST field is public or at least one -// field is public in case all fields are 1-ZST fields. +// Test the rendering of `#[repr]` on ADTs. +#![feature(repr_simd)] // only used for the `ReprSimd` test case + +// Check the "local case" (HIR cleaning) // + +// Don't render the default repr which is `Rust`. +//@ has 'repr/struct.ReprDefault.html' +//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(Rust)]' +pub struct ReprDefault; + +// Don't render the `Rust` repr — even if given explicitly — since it's the default. +//@ has 'repr/struct.ReprRust.html' +//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(Rust)]' +#[repr(Rust)] // omitted +pub struct ReprRust; + +//@ has 'repr/struct.ReprCPubFields.html' +//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(C)]' +#[repr(C)] // public +pub struct ReprCPubFields { + pub a: u32, + pub b: u32, +} + +//@ has 'repr/struct.ReprCPrivField.html' +//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(C)]' +#[repr(C)] // private... +pub struct ReprCPrivField { + a: u32, // ...since this is private + pub b: u32, +} + +//@ has 'repr/enum.ReprIsize.html' +//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(isize)]' +#[repr(isize)] // public +pub enum ReprIsize { + Bla, +} + +//@ has 'repr/enum.ReprU32HiddenVariant.html' +//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(u32)]' +#[repr(u32)] // private... +pub enum ReprU32HiddenVariant { + #[doc(hidden)] + Hidden, // ...since this is hidden + Public, +} + +//@ has 'repr/struct.ReprAlignHiddenField.html' +//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(align(4))]' +#[repr(align(4))] // private... +pub struct ReprAlignHiddenField { + #[doc(hidden)] + pub hidden: i16, // ...since this field is hidden +} + +//@ has 'repr/struct.ReprSimd.html' +//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(simd, packed(2))]' +#[repr(simd, packed(2))] // public +pub struct ReprSimd { + pub field: [u8; 1], +} + +//@ has 'repr/enum.ReprU32Align.html' +//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(u32, align(8))]' +#[repr(u32, align(8))] // public +pub enum ReprU32Align { + Variant(u16), +} + +//@ has 'repr/enum.ReprCHiddenVariantField.html' +//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(C)]' +#[repr(C)] // private... +pub enum ReprCHiddenVariantField { + Variant { #[doc(hidden)] field: () }, //...since this field is hidden +} //@ has 'repr/struct.ReprTransparentPrivField.html' //@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' -#[repr(transparent)] // private +#[repr(transparent)] // private... pub struct ReprTransparentPrivField { - field: u32, // non-1-ZST field + field: u32, // ...since the non-1-ZST field is private } //@ has 'repr/struct.ReprTransparentPriv1ZstFields.html' //@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' -#[repr(transparent)] // public +#[repr(transparent)] // public... pub struct ReprTransparentPriv1ZstFields { marker0: Marker, - pub main: u64, // non-1-ZST field + pub main: u64, // ...since the non-1-ZST field is public and visible marker1: Marker, +} // the two private 1-ZST fields don't matter + +//@ has 'repr/struct.ReprTransparentPrivFieldPub1ZstField.html' +//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' +#[repr(transparent)] // private... +pub struct ReprTransparentPrivFieldPub1ZstField { + main: [u16; 0], // ...since the non-1-ZST field is private + pub marker: Marker, // this public 1-ZST field doesn't matter } //@ has 'repr/struct.ReprTransparentPub1ZstField.html' //@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' -#[repr(transparent)] // public +#[repr(transparent)] // public... pub struct ReprTransparentPub1ZstField { - marker0: Marker, - pub marker1: Marker, + marker0: Marker, // ...since we don't have a non-1-ZST field... + pub marker1: Marker, // ...and this field is public and visible +} + +//@ has 'repr/struct.ReprTransparentUnitStruct.html' +//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' +#[repr(transparent)] // public +pub struct ReprTransparentUnitStruct; + +//@ has 'repr/enum.ReprTransparentEnumUnitVariant.html' +//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' +#[repr(transparent)] // public +pub enum ReprTransparentEnumUnitVariant { + Variant, +} + +//@ has 'repr/enum.ReprTransparentEnumHiddenUnitVariant.html' +//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' +#[repr(transparent)] // private +pub enum ReprTransparentEnumHiddenUnitVariant { + #[doc(hidden)] Variant(u32), +} + +//@ has 'repr/enum.ReprTransparentEnumPub1ZstField.html' +//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' +#[repr(transparent)] // public... +pub enum ReprTransparentEnumPub1ZstField { + Variant { + field: u64, // ...since the non-1-ZST field is public + #[doc(hidden)] + marker: Marker, // this hidden 1-ZST field doesn't matter + }, +} + +//@ has 'repr/enum.ReprTransparentEnumHidden1ZstField.html' +//@ !has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(transparent)]' +#[repr(transparent)] // private... +pub enum ReprTransparentEnumHidden1ZstField { + Variant { + #[doc(hidden)] + field: u64, // ...since the non-1-ZST field is public + }, } struct Marker; // 1-ZST + +// Check the "extern case" (middle cleaning) // + +// Internally, HIR and middle cleaning share `#[repr]` rendering. +// Thus we'll only test the very basics in this section. + +//@ aux-build: ext-repr.rs +extern crate ext_repr as ext; + +// Regression test for <https://github.com/rust-lang/rust/issues/110698>. +//@ has 'repr/enum.ReprI8.html' +//@ has - '//*[@class="rust item-decl"]//*[@class="code-attribute"]' '#[repr(i8)]' +pub use ext::ReprI8; diff --git a/tests/rustdoc/source-code-pages/check-source-code-urls-to-def.rs b/tests/rustdoc/source-code-pages/check-source-code-urls-to-def.rs index d701b88bf9f..a7b944fa2f6 100644 --- a/tests/rustdoc/source-code-pages/check-source-code-urls-to-def.rs +++ b/tests/rustdoc/source-code-pages/check-source-code-urls-to-def.rs @@ -34,7 +34,7 @@ fn babar() {} // The 5 links to line 23 and the line 23 itself. //@ count - '//pre[@class="rust"]//a[@href="#23"]' 6 //@ has - '//pre[@class="rust"]//a[@href="../../source_code/struct.SourceCode.html"]' \ -// 'source_code::SourceCode' +// 'SourceCode' pub fn foo(a: u32, b: &str, c: String, d: Foo, e: bar::Bar, f: source_code::SourceCode) { let x = 12; let y: Foo = Foo; diff --git a/tests/ui/attributes/malformed-attrs.rs b/tests/ui/attributes/malformed-attrs.rs index e30479b03b1..820484aa015 100644 --- a/tests/ui/attributes/malformed-attrs.rs +++ b/tests/ui/attributes/malformed-attrs.rs @@ -185,8 +185,7 @@ extern "C" { #[forbid] //~^ ERROR malformed #[debugger_visualizer] -//~^ ERROR invalid argument -//~| ERROR malformed `debugger_visualizer` attribute input +//~^ ERROR malformed `debugger_visualizer` attribute input #[automatically_derived = 18] //~^ ERROR malformed mod yooo { diff --git a/tests/ui/attributes/malformed-attrs.stderr b/tests/ui/attributes/malformed-attrs.stderr index 246029ecf80..70ab3fb13c4 100644 --- a/tests/ui/attributes/malformed-attrs.stderr +++ b/tests/ui/attributes/malformed-attrs.stderr @@ -22,7 +22,7 @@ LL | #[cfg_attr(condition, attribute, other_attribute, ...)] | ++++++++++++++++++++++++++++++++++++++++++++ error[E0463]: can't find crate for `wloop` - --> $DIR/malformed-attrs.rs:210:1 + --> $DIR/malformed-attrs.rs:209:1 | LL | extern crate wloop; | ^^^^^^^^^^^^^^^^^^^ can't find crate @@ -156,22 +156,14 @@ LL | #[forbid(lint1, lint2, ...)] LL | #[forbid(lint1, lint2, lint3, reason = "...")] | +++++++++++++++++++++++++++++++++++++ -error: malformed `debugger_visualizer` attribute input - --> $DIR/malformed-attrs.rs:187:1 - | -LL | #[debugger_visualizer] - | ^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[debugger_visualizer(natvis_file = "...", gdb_script_file = "...")]` - | - = note: for more information, visit <https://doc.rust-lang.org/reference/attributes/debugger.html#the-debugger_visualizer-attribute> - error: malformed `thread_local` attribute input - --> $DIR/malformed-attrs.rs:202:1 + --> $DIR/malformed-attrs.rs:201:1 | LL | #[thread_local()] | ^^^^^^^^^^^^^^^^^ help: must be of the form: `#[thread_local]` error: malformed `no_link` attribute input - --> $DIR/malformed-attrs.rs:206:1 + --> $DIR/malformed-attrs.rs:205:1 | LL | #[no_link()] | ^^^^^^^^^^^^ help: must be of the form: `#[no_link]` @@ -197,7 +189,7 @@ LL | #[proc_macro_derive] | ^^^^^^^^^^^^^^^^^^^^ error[E0658]: allow_internal_unsafe side-steps the unsafe_code lint - --> $DIR/malformed-attrs.rs:215:1 + --> $DIR/malformed-attrs.rs:214:1 | LL | #[allow_internal_unsafe = 1] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -226,16 +218,6 @@ LL | #[doc] = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: for more information, visit <https://doc.rust-lang.org/rustdoc/write-documentation/the-doc-attribute.html> -error: invalid argument - --> $DIR/malformed-attrs.rs:187:1 - | -LL | #[debugger_visualizer] - | ^^^^^^^^^^^^^^^^^^^^^^ - | - = note: expected: `natvis_file = "..."` - = note: OR - = note: expected: `gdb_script_file = "..."` - error[E0539]: malformed `export_name` attribute input --> $DIR/malformed-attrs.rs:29:1 | @@ -685,8 +667,19 @@ LL | #[linkage = "external"] | ++++++++++++ = and 5 other candidates +error[E0539]: malformed `debugger_visualizer` attribute input + --> $DIR/malformed-attrs.rs:187:1 + | +LL | #[debugger_visualizer] + | ^^^^^^^^^^^^^^^^^^^^^^ + | | + | expected this to be a list + | help: must be of the form: `#[debugger_visualizer(natvis_file = "...", gdb_script_file = "...")]` + | + = note: for more information, visit <https://doc.rust-lang.org/reference/attributes/debugger.html#the-debugger_visualizer-attribute> + error[E0565]: malformed `automatically_derived` attribute input - --> $DIR/malformed-attrs.rs:190:1 + --> $DIR/malformed-attrs.rs:189:1 | LL | #[automatically_derived = 18] | ^^^^^^^^^^^^^^^^^^^^^^^^----^ @@ -695,7 +688,7 @@ LL | #[automatically_derived = 18] | help: must be of the form: `#[automatically_derived]` error[E0565]: malformed `non_exhaustive` attribute input - --> $DIR/malformed-attrs.rs:196:1 + --> $DIR/malformed-attrs.rs:195:1 | LL | #[non_exhaustive = 1] | ^^^^^^^^^^^^^^^^^---^ @@ -704,19 +697,19 @@ LL | #[non_exhaustive = 1] | help: must be of the form: `#[non_exhaustive]` error: valid forms for the attribute are `#[macro_use(name1, name2, ...)]` and `#[macro_use]` - --> $DIR/malformed-attrs.rs:208:1 + --> $DIR/malformed-attrs.rs:207:1 | LL | #[macro_use = 1] | ^^^^^^^^^^^^^^^^ error: valid forms for the attribute are `#![macro_export(local_inner_macros)]` and `#![macro_export]` - --> $DIR/malformed-attrs.rs:213:1 + --> $DIR/malformed-attrs.rs:212:1 | LL | #[macro_export = 18] | ^^^^^^^^^^^^^^^^^^^^ error[E0565]: malformed `allow_internal_unsafe` attribute input - --> $DIR/malformed-attrs.rs:215:1 + --> $DIR/malformed-attrs.rs:214:1 | LL | #[allow_internal_unsafe = 1] | ^^^^^^^^^^^^^^^^^^^^^^^^---^ @@ -800,7 +793,7 @@ LL | #[ignore()] = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]` - --> $DIR/malformed-attrs.rs:222:1 + --> $DIR/malformed-attrs.rs:221:1 | LL | #[ignore = 1] | ^^^^^^^^^^^^^ @@ -819,7 +812,7 @@ LL | #[coroutine = 63] || {} = note: expected unit type `()` found coroutine `{coroutine@$DIR/malformed-attrs.rs:110:23: 110:25}` -error: aborting due to 77 previous errors; 3 warnings emitted +error: aborting due to 76 previous errors; 3 warnings emitted Some errors have detailed explanations: E0308, E0463, E0539, E0565, E0658, E0805. For more information about an error, try `rustc --explain E0308`. @@ -871,7 +864,7 @@ LL | #[ignore()] Future breakage diagnostic: error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]` - --> $DIR/malformed-attrs.rs:222:1 + --> $DIR/malformed-attrs.rs:221:1 | LL | #[ignore = 1] | ^^^^^^^^^^^^^ diff --git a/tests/ui/coercion/no_local_for_coerced_const-issue-143671.rs b/tests/ui/coercion/no_local_for_coerced_const-issue-143671.rs new file mode 100644 index 00000000000..38479d9070b --- /dev/null +++ b/tests/ui/coercion/no_local_for_coerced_const-issue-143671.rs @@ -0,0 +1,46 @@ +//@ run-pass + +#![feature(unsize)] +#![feature(coerce_unsized)] + +use std::fmt::Display; +use std::marker::Unsize; +use std::ops::CoerceUnsized; +use std::rc::Weak; + +#[repr(transparent)] +struct X<'a, T: ?Sized> { + f: &'a T, +} + +impl<'a, T: ?Sized> Drop for X<'a, T> { + fn drop(&mut self) { + panic!() + } +} + +impl<'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<X<'a, U>> for X<'a, T> where + &'a T: CoerceUnsized<&'a U> +{ +} + +const Y: X<'static, i32> = X { f: &0 }; + +fn main() { + let _: [X<'static, dyn Display>; 0] = [Y; 0]; + coercion_on_weak_in_const(); + coercion_on_weak_as_cast(); +} + +fn coercion_on_weak_in_const() { + const X: Weak<i32> = Weak::new(); + const Y: [Weak<dyn Send>; 0] = [X; 0]; + let _ = Y; +} + +fn coercion_on_weak_as_cast() { + const Y: X<'static, i32> = X { f: &0 }; + // What happens in the following code is that + // a constant is explicitly coerced into + let _a: [X<'static, dyn Display>; 0] = [Y as X<'static, dyn Display>; 0]; +} diff --git a/tests/ui/coroutine/copy-fast-path-query-cycle.rs b/tests/ui/coroutine/copy-fast-path-query-cycle.rs new file mode 100644 index 00000000000..644cba0d47a --- /dev/null +++ b/tests/ui/coroutine/copy-fast-path-query-cycle.rs @@ -0,0 +1,40 @@ +//@ edition: 2024 +//@ revisions: current next +//@[next] compile-flags: -Znext-solver +//@ check-pass + +// Regression test for #146813. We previously used a pseudo-canonical +// query during HIR typeck which caused a query cycle when looking at the +// witness of a coroutine. + +use std::future::Future; + +trait ConnectMiddleware {} + +trait ConnectHandler: Sized { + fn with<M>(self, _: M) -> impl ConnectHandler + where + M: ConnectMiddleware, + { + LayeredConnectHandler + } +} + +struct LayeredConnectHandler; +impl ConnectHandler for LayeredConnectHandler {} +impl<F> ConnectHandler for F where F: FnOnce() {} + +impl<F, Fut> ConnectMiddleware for F +where + F: FnOnce() -> Fut, + Fut: Future<Output = ()> + Send, +{ +} + +pub async fn fails() { + { || {} } + .with(async || ()) + .with(async || ()) + .with(async || ()); +} +fn main() {} diff --git a/tests/ui/inference/need_type_info/issue-107745-avoid-expr-from-macro-expansion.stderr b/tests/ui/inference/need_type_info/issue-107745-avoid-expr-from-macro-expansion.stderr index 3de317d2af6..a78941f9e11 100644 --- a/tests/ui/inference/need_type_info/issue-107745-avoid-expr-from-macro-expansion.stderr +++ b/tests/ui/inference/need_type_info/issue-107745-avoid-expr-from-macro-expansion.stderr @@ -1,10 +1,10 @@ error[E0282]: type annotations needed - --> $DIR/issue-107745-avoid-expr-from-macro-expansion.rs:17:22 + --> $DIR/issue-107745-avoid-expr-from-macro-expansion.rs:17:5 | LL | println!("{:?}", []); - | ^^ cannot infer type + | ^^^^^^^^^^^^^^^^^^^^ cannot infer type | - = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) + = note: this error originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 1 previous error diff --git a/tests/ui/invalid/invalid-debugger-visualizer-option.rs b/tests/ui/invalid/invalid-debugger-visualizer-option.rs index 0f1cf15a687..166962866dc 100644 --- a/tests/ui/invalid/invalid-debugger-visualizer-option.rs +++ b/tests/ui/invalid/invalid-debugger-visualizer-option.rs @@ -1,6 +1,6 @@ //@ normalize-stderr: "foo.random:.*\(" -> "foo.random: $$FILE_NOT_FOUND_MSG (" //@ normalize-stderr: "os error \d+" -> "os error $$FILE_NOT_FOUND_CODE" -#![debugger_visualizer(random_file = "../foo.random")] //~ ERROR invalid argument +#![debugger_visualizer(random_file = "../foo.random")] //~ ERROR malformed `debugger_visualizer` attribute input #![debugger_visualizer(natvis_file = "../foo.random")] //~ ERROR fn main() {} diff --git a/tests/ui/invalid/invalid-debugger-visualizer-option.stderr b/tests/ui/invalid/invalid-debugger-visualizer-option.stderr index 6fbb4d641e6..e877e39d8f1 100644 --- a/tests/ui/invalid/invalid-debugger-visualizer-option.stderr +++ b/tests/ui/invalid/invalid-debugger-visualizer-option.stderr @@ -1,18 +1,20 @@ -error: invalid argument - --> $DIR/invalid-debugger-visualizer-option.rs:4:24 - | -LL | #![debugger_visualizer(random_file = "../foo.random")] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | - = note: expected: `natvis_file = "..."` - = note: OR - = note: expected: `gdb_script_file = "..."` - error: couldn't read $DIR/../foo.random: $FILE_NOT_FOUND_MSG (os error $FILE_NOT_FOUND_CODE) --> $DIR/invalid-debugger-visualizer-option.rs:5:24 | LL | #![debugger_visualizer(natvis_file = "../foo.random")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +error[E0539]: malformed `debugger_visualizer` attribute input + --> $DIR/invalid-debugger-visualizer-option.rs:4:1 + | +LL | #![debugger_visualizer(random_file = "../foo.random")] + | ^^^^^^^^^^^^^^^^^^^^^^^-----------^^^^^^^^^^^^^^^^^^^^ + | | | + | | valid arguments are `natvis_file` or `gdb_script_file` + | help: must be of the form: `#![debugger_visualizer(natvis_file = "...", gdb_script_file = "...")]` + | + = note: for more information, visit <https://doc.rust-lang.org/reference/attributes/debugger.html#the-debugger_visualizer-attribute> + error: aborting due to 2 previous errors +For more information about this error, try `rustc --explain E0539`. diff --git a/tests/ui/invalid/invalid-debugger-visualizer-target.rs b/tests/ui/invalid/invalid-debugger-visualizer-target.rs index 1efb9555c24..48b04153214 100644 --- a/tests/ui/invalid/invalid-debugger-visualizer-target.rs +++ b/tests/ui/invalid/invalid-debugger-visualizer-target.rs @@ -1,2 +1,3 @@ -#[debugger_visualizer(natvis_file = "./foo.natvis.xml")] //~ ERROR attribute should be applied to a module +#[debugger_visualizer(natvis_file = "./foo.natvis.xml")] +//~^ ERROR `#[debugger_visualizer]` attribute cannot be used on functions fn main() {} diff --git a/tests/ui/invalid/invalid-debugger-visualizer-target.stderr b/tests/ui/invalid/invalid-debugger-visualizer-target.stderr index 1df34532533..629af94c5ef 100644 --- a/tests/ui/invalid/invalid-debugger-visualizer-target.stderr +++ b/tests/ui/invalid/invalid-debugger-visualizer-target.stderr @@ -1,8 +1,10 @@ -error: attribute should be applied to a module +error: `#[debugger_visualizer]` attribute cannot be used on functions --> $DIR/invalid-debugger-visualizer-target.rs:1:1 | LL | #[debugger_visualizer(natvis_file = "./foo.natvis.xml")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = help: `#[debugger_visualizer]` can be applied to modules and crates error: aborting due to 1 previous error diff --git a/tests/ui/issues/issue-27592.stderr b/tests/ui/issues/issue-27592.stderr index c8649d82d74..f1de7b9e569 100644 --- a/tests/ui/issues/issue-27592.stderr +++ b/tests/ui/issues/issue-27592.stderr @@ -1,3 +1,9 @@ +error[E0515]: cannot return reference to temporary value + --> $DIR/issue-27592.rs:16:14 + | +LL | write(|| format_args!("{}", String::from("Hello world"))); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ returns a reference to data owned by the current function + error[E0515]: cannot return value referencing temporary value --> $DIR/issue-27592.rs:16:14 | @@ -7,12 +13,6 @@ LL | write(|| format_args!("{}", String::from("Hello world"))); | | temporary value created here | returns a value referencing data owned by the current function -error[E0515]: cannot return reference to temporary value - --> $DIR/issue-27592.rs:16:14 - | -LL | write(|| format_args!("{}", String::from("Hello world"))); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ returns a reference to data owned by the current function - error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0515`. diff --git a/tests/ui/lang-items/missing-copy-lang-item-issue-19660.rs b/tests/ui/lang-items/missing-copy-lang-item-issue-19660.rs deleted file mode 100644 index 35d5d079c68..00000000000 --- a/tests/ui/lang-items/missing-copy-lang-item-issue-19660.rs +++ /dev/null @@ -1,19 +0,0 @@ -#![feature(lang_items, no_core)] -#![no_core] -#![no_main] - -#[lang = "pointee_sized"] -pub trait PointeeSized {} - -#[lang = "meta_sized"] -pub trait MetaSized: PointeeSized {} - -#[lang = "sized"] -trait Sized: MetaSized { } - -struct S; - -#[no_mangle] -extern "C" fn main(argc: i32, _argv: *const *const u8) -> i32 { - argc //~ ERROR requires `copy` lang_item -} diff --git a/tests/ui/lang-items/missing-copy-lang-item-issue-19660.stderr b/tests/ui/lang-items/missing-copy-lang-item-issue-19660.stderr deleted file mode 100644 index 7b9541f734f..00000000000 --- a/tests/ui/lang-items/missing-copy-lang-item-issue-19660.stderr +++ /dev/null @@ -1,8 +0,0 @@ -error: requires `copy` lang_item - --> $DIR/missing-copy-lang-item-issue-19660.rs:18:5 - | -LL | argc - | ^^^^ - -error: aborting due to 1 previous error - diff --git a/tests/ui/resolve/unused-macro-import.rs b/tests/ui/resolve/unused-macro-import.rs new file mode 100644 index 00000000000..e85f7a43993 --- /dev/null +++ b/tests/ui/resolve/unused-macro-import.rs @@ -0,0 +1,13 @@ +//@ check-pass + +#![warn(unused_imports)] + +#[macro_export] +macro_rules! mac { () => {} } + +fn main() { + // Unused, `mac` as `macro_rules!` is already in scope and has higher priority. + use crate::mac; //~ WARN unused import: `crate::mac` + + mac!(); +} diff --git a/tests/ui/resolve/unused-macro-import.stderr b/tests/ui/resolve/unused-macro-import.stderr new file mode 100644 index 00000000000..5f9813808a0 --- /dev/null +++ b/tests/ui/resolve/unused-macro-import.stderr @@ -0,0 +1,14 @@ +warning: unused import: `crate::mac` + --> $DIR/unused-macro-import.rs:10:9 + | +LL | use crate::mac; + | ^^^^^^^^^^ + | +note: the lint level is defined here + --> $DIR/unused-macro-import.rs:3:9 + | +LL | #![warn(unused_imports)] + | ^^^^^^^^^^^^^^ + +warning: 1 warning emitted + diff --git a/tests/ui/simd/auxiliary/simd-lane-limit.rs b/tests/ui/simd/auxiliary/simd-lane-limit.rs new file mode 100644 index 00000000000..dde6b880c62 --- /dev/null +++ b/tests/ui/simd/auxiliary/simd-lane-limit.rs @@ -0,0 +1,5 @@ +#![feature(rustc_attrs, repr_simd)] + +#[repr(simd, packed)] +#[rustc_simd_monomorphize_lane_limit = "8"] +pub struct Simd<T, const N: usize>(pub [T; N]); diff --git a/tests/ui/simd/monomorphize-too-long.rs b/tests/ui/simd/monomorphize-too-long.rs index 4fac987b0b5..9c837415191 100644 --- a/tests/ui/simd/monomorphize-too-long.rs +++ b/tests/ui/simd/monomorphize-too-long.rs @@ -6,7 +6,5 @@ struct Simd<T, const N: usize>([T; N]); fn main() { - let _too_big = Simd([1_u16; 54321]); + let _too_big = Simd([1_u16; 54321]); //~ ERROR the SIMD type `Simd<u16, 54321>` has more elements than the limit 32768 } - -//~? ERROR monomorphising SIMD type `Simd<u16, 54321>` of length greater than 32768 diff --git a/tests/ui/simd/monomorphize-too-long.stderr b/tests/ui/simd/monomorphize-too-long.stderr index 978eef307ab..71bc78ef5c9 100644 --- a/tests/ui/simd/monomorphize-too-long.stderr +++ b/tests/ui/simd/monomorphize-too-long.stderr @@ -1,4 +1,8 @@ -error: monomorphising SIMD type `Simd<u16, 54321>` of length greater than 32768 +error: the SIMD type `Simd<u16, 54321>` has more elements than the limit 32768 + --> $DIR/monomorphize-too-long.rs:9:9 + | +LL | let _too_big = Simd([1_u16; 54321]); + | ^^^^^^^^ error: aborting due to 1 previous error diff --git a/tests/ui/simd/monomorphize-zero-length.rs b/tests/ui/simd/monomorphize-zero-length.rs index d38870c572d..f956197a61c 100644 --- a/tests/ui/simd/monomorphize-zero-length.rs +++ b/tests/ui/simd/monomorphize-zero-length.rs @@ -6,7 +6,5 @@ struct Simd<T, const N: usize>([T; N]); fn main() { - let _empty = Simd([1.0; 0]); + let _empty = Simd([1.0; 0]); //~ ERROR the SIMD type `Simd<f64, 0>` has zero elements } - -//~? ERROR monomorphising SIMD type `Simd<f64, 0>` of zero length diff --git a/tests/ui/simd/monomorphize-zero-length.stderr b/tests/ui/simd/monomorphize-zero-length.stderr index 738c20fe51a..66f26d95c9d 100644 --- a/tests/ui/simd/monomorphize-zero-length.stderr +++ b/tests/ui/simd/monomorphize-zero-length.stderr @@ -1,4 +1,8 @@ -error: monomorphising SIMD type `Simd<f64, 0>` of zero length +error: the SIMD type `Simd<f64, 0>` has zero elements + --> $DIR/monomorphize-zero-length.rs:9:9 + | +LL | let _empty = Simd([1.0; 0]); + | ^^^^^^ error: aborting due to 1 previous error diff --git a/tests/ui/simd/simd-lane-limit-err-npow2.rs b/tests/ui/simd/simd-lane-limit-err-npow2.rs new file mode 100644 index 00000000000..d5c5c92e953 --- /dev/null +++ b/tests/ui/simd/simd-lane-limit-err-npow2.rs @@ -0,0 +1,12 @@ +//@ build-fail +//@ aux-crate:simd=simd-lane-limit.rs + +extern crate simd; + +use simd::Simd; + +fn main() { + // test non-power-of-two, since #[repr(simd, packed)] has unusual layout + let _x: Simd<i32, 24> = Simd([0; 24]); + //~^ ERROR the SIMD type `simd::Simd<i32, 24>` has more elements than the limit 8 +} diff --git a/tests/ui/simd/simd-lane-limit-err-npow2.stderr b/tests/ui/simd/simd-lane-limit-err-npow2.stderr new file mode 100644 index 00000000000..fff26c4c1c1 --- /dev/null +++ b/tests/ui/simd/simd-lane-limit-err-npow2.stderr @@ -0,0 +1,8 @@ +error: the SIMD type `simd::Simd<i32, 24>` has more elements than the limit 8 + --> $DIR/simd-lane-limit-err-npow2.rs:10:9 + | +LL | let _x: Simd<i32, 24> = Simd([0; 24]); + | ^^ + +error: aborting due to 1 previous error + diff --git a/tests/ui/simd/simd-lane-limit-err.rs b/tests/ui/simd/simd-lane-limit-err.rs new file mode 100644 index 00000000000..00390bdbdaf --- /dev/null +++ b/tests/ui/simd/simd-lane-limit-err.rs @@ -0,0 +1,11 @@ +//@ build-fail +//@ aux-crate:simd=simd-lane-limit.rs + +extern crate simd; + +use simd::Simd; + +fn main() { + let _x: Simd<i32, 16> = Simd([0; 16]); + //~^ ERROR the SIMD type `simd::Simd<i32, 16>` has more elements than the limit 8 +} diff --git a/tests/ui/simd/simd-lane-limit-err.stderr b/tests/ui/simd/simd-lane-limit-err.stderr new file mode 100644 index 00000000000..3f2eaeda2d4 --- /dev/null +++ b/tests/ui/simd/simd-lane-limit-err.stderr @@ -0,0 +1,8 @@ +error: the SIMD type `simd::Simd<i32, 16>` has more elements than the limit 8 + --> $DIR/simd-lane-limit-err.rs:9:9 + | +LL | let _x: Simd<i32, 16> = Simd([0; 16]); + | ^^ + +error: aborting due to 1 previous error + diff --git a/tests/ui/simd/simd-lane-limit-ok.rs b/tests/ui/simd/simd-lane-limit-ok.rs new file mode 100644 index 00000000000..52fd3158440 --- /dev/null +++ b/tests/ui/simd/simd-lane-limit-ok.rs @@ -0,0 +1,14 @@ +//@ build-pass +//@ aux-crate:simd=simd-lane-limit.rs + +extern crate simd; + +use simd::Simd; + +fn main() { + let _x: Simd<i32, 4> = Simd([0; 4]); + let _y: Simd<i32, 8> = Simd([0; 8]); + + // test non-power-of-two, since #[repr(simd, packed)] has unusual layout + let _z: Simd<i32, 6> = Simd([0; 6]); +} diff --git a/tests/ui/simd/type-generic-monomorphisation-empty.rs b/tests/ui/simd/type-generic-monomorphisation-empty.rs index c08dc9fe3df..7c43b8914da 100644 --- a/tests/ui/simd/type-generic-monomorphisation-empty.rs +++ b/tests/ui/simd/type-generic-monomorphisation-empty.rs @@ -6,7 +6,5 @@ struct Simd<const N: usize>([f32; N]); fn main() { - let _ = Simd::<0>([]); + let _empty = Simd::<0>([]); //~ ERROR the SIMD type `Simd<0>` has zero elements } - -//~? ERROR monomorphising SIMD type `Simd<0>` of zero length diff --git a/tests/ui/simd/type-generic-monomorphisation-empty.stderr b/tests/ui/simd/type-generic-monomorphisation-empty.stderr index fc294607ae3..450db7e47db 100644 --- a/tests/ui/simd/type-generic-monomorphisation-empty.stderr +++ b/tests/ui/simd/type-generic-monomorphisation-empty.stderr @@ -1,4 +1,8 @@ -error: monomorphising SIMD type `Simd<0>` of zero length +error: the SIMD type `Simd<0>` has zero elements + --> $DIR/type-generic-monomorphisation-empty.rs:9:9 + | +LL | let _empty = Simd::<0>([]); + | ^^^^^^ error: aborting due to 1 previous error diff --git a/tests/ui/simd/type-generic-monomorphisation-oversized.rs b/tests/ui/simd/type-generic-monomorphisation-oversized.rs index efe3480317c..73a1f00e8c7 100644 --- a/tests/ui/simd/type-generic-monomorphisation-oversized.rs +++ b/tests/ui/simd/type-generic-monomorphisation-oversized.rs @@ -6,7 +6,6 @@ struct Simd<const N: usize>([f32; N]); fn main() { - let _ = Simd::<65536>([0.; 65536]); + let _x = Simd::<65536>([0.; 65536]); + //~^ ERROR the SIMD type `Simd<65536>` has more elements than the limit 32768 } - -//~? ERROR monomorphising SIMD type `Simd<65536>` of length greater than 32768 diff --git a/tests/ui/simd/type-generic-monomorphisation-oversized.stderr b/tests/ui/simd/type-generic-monomorphisation-oversized.stderr index 39ff36799cc..0065049abd6 100644 --- a/tests/ui/simd/type-generic-monomorphisation-oversized.stderr +++ b/tests/ui/simd/type-generic-monomorphisation-oversized.stderr @@ -1,4 +1,8 @@ -error: monomorphising SIMD type `Simd<65536>` of length greater than 32768 +error: the SIMD type `Simd<65536>` has more elements than the limit 32768 + --> $DIR/type-generic-monomorphisation-oversized.rs:9:9 + | +LL | let _x = Simd::<65536>([0.; 65536]); + | ^^ error: aborting due to 1 previous error diff --git a/tests/ui/suggestions/issue-97760.stderr b/tests/ui/suggestions/issue-97760.stderr index 1084ea7c9e0..c3cf7e13987 100644 --- a/tests/ui/suggestions/issue-97760.stderr +++ b/tests/ui/suggestions/issue-97760.stderr @@ -1,11 +1,8 @@ error[E0277]: `<impl IntoIterator as IntoIterator>::Item` doesn't implement `std::fmt::Display` - --> $DIR/issue-97760.rs:4:20 + --> $DIR/issue-97760.rs:4:19 | LL | println!("{x}"); - | -^- - | || - | |`<impl IntoIterator as IntoIterator>::Item` cannot be formatted with the default formatter - | required by this formatting parameter + | ^^^ `<impl IntoIterator as IntoIterator>::Item` cannot be formatted with the default formatter | = help: the trait `std::fmt::Display` is not implemented for `<impl IntoIterator as IntoIterator>::Item` = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead diff --git a/tests/ui/unpretty/exhaustive.hir.stdout b/tests/ui/unpretty/exhaustive.hir.stdout index 96d85d1e7c1..27cba656030 100644 --- a/tests/ui/unpretty/exhaustive.hir.stdout +++ b/tests/ui/unpretty/exhaustive.hir.stdout @@ -398,7 +398,8 @@ mod expressions { let expr; format_arguments::new_const(&[]); { - super let args = [format_argument::new_display(&expr)]; + super let args = (&expr,); + super let args = [format_argument::new_display(args.0)]; format_arguments::new_v1(&[""], &args) }; } diff --git a/tests/ui/unpretty/flattened-format-args.stdout b/tests/ui/unpretty/flattened-format-args.stdout index 0792dc10e94..233c9f1c91b 100644 --- a/tests/ui/unpretty/flattened-format-args.stdout +++ b/tests/ui/unpretty/flattened-format-args.stdout @@ -11,7 +11,8 @@ fn main() { // Should flatten to println!("a 123 b {x} xyz\n"): { ::std::io::_print({ - super let args = [format_argument::new_display(&x)]; + super let args = (&x,); + super let args = [format_argument::new_display(args.0)]; format_arguments::new_v1(&["a 123 b ", " xyz\n"], &args) }); }; |