diff options
Diffstat (limited to 'compiler/rustc_codegen_gcc/src')
| -rw-r--r-- | compiler/rustc_codegen_gcc/src/abi.rs | 4 | ||||
| -rw-r--r-- | compiler/rustc_codegen_gcc/src/builder.rs | 2 | ||||
| -rw-r--r-- | compiler/rustc_codegen_gcc/src/context.rs | 3 | ||||
| -rw-r--r-- | compiler/rustc_codegen_gcc/src/debuginfo.rs | 2 | ||||
| -rw-r--r-- | compiler/rustc_codegen_gcc/src/type_of.rs | 48 |
5 files changed, 20 insertions, 39 deletions
diff --git a/compiler/rustc_codegen_gcc/src/abi.rs b/compiler/rustc_codegen_gcc/src/abi.rs index 6fb1cbfad8c..377dc753f68 100644 --- a/compiler/rustc_codegen_gcc/src/abi.rs +++ b/compiler/rustc_codegen_gcc/src/abi.rs @@ -125,8 +125,8 @@ impl<'gcc, 'tcx> FnAbiGccExt<'gcc, 'tcx> for FnAbi<'tcx, Ty<'tcx>> { PassMode::Ignore => continue, PassMode::Direct(_) => arg.layout.immediate_gcc_type(cx), PassMode::Pair(..) => { - argument_tys.push(arg.layout.scalar_pair_element_gcc_type(cx, 0, true)); - argument_tys.push(arg.layout.scalar_pair_element_gcc_type(cx, 1, true)); + argument_tys.push(arg.layout.scalar_pair_element_gcc_type(cx, 0)); + argument_tys.push(arg.layout.scalar_pair_element_gcc_type(cx, 1)); continue; } PassMode::Indirect { extra_attrs: Some(_), .. } => { diff --git a/compiler/rustc_codegen_gcc/src/builder.rs b/compiler/rustc_codegen_gcc/src/builder.rs index 0b1f2fe6a87..308cb04cac3 100644 --- a/compiler/rustc_codegen_gcc/src/builder.rs +++ b/compiler/rustc_codegen_gcc/src/builder.rs @@ -821,7 +821,7 @@ impl<'a, 'gcc, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'gcc, 'tcx> { let mut load = |i, scalar: &abi::Scalar, align| { let llptr = self.struct_gep(pair_type, place.llval, i as u64); - let llty = place.layout.scalar_pair_element_gcc_type(self, i, false); + let llty = place.layout.scalar_pair_element_gcc_type(self, i); let load = self.load(llty, llptr, align); scalar_load_metadata(self, load, scalar); if scalar.is_bool() { self.trunc(load, self.type_i1()) } else { load } diff --git a/compiler/rustc_codegen_gcc/src/context.rs b/compiler/rustc_codegen_gcc/src/context.rs index 88dcafa7370..dcebd92a61c 100644 --- a/compiler/rustc_codegen_gcc/src/context.rs +++ b/compiler/rustc_codegen_gcc/src/context.rs @@ -7,6 +7,7 @@ use rustc_codegen_ssa::traits::{ BaseTypeMethods, MiscMethods, }; +use rustc_codegen_ssa::errors as ssa_errors; use rustc_data_structures::base_n; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_middle::span_bug; @@ -479,7 +480,7 @@ impl<'gcc, 'tcx> LayoutOfHelpers<'tcx> for CodegenCx<'gcc, 'tcx> { if let LayoutError::SizeOverflow(_) | LayoutError::ReferencesError(_) = err { self.sess().emit_fatal(respan(span, err.into_diagnostic())) } else { - span_bug!(span, "failed to get layout for `{}`: {}", ty, err) + self.tcx.sess.emit_fatal(ssa_errors::FailedToGetLayout { span, ty, err }) } } } diff --git a/compiler/rustc_codegen_gcc/src/debuginfo.rs b/compiler/rustc_codegen_gcc/src/debuginfo.rs index d1bfd833cd8..a81585d4128 100644 --- a/compiler/rustc_codegen_gcc/src/debuginfo.rs +++ b/compiler/rustc_codegen_gcc/src/debuginfo.rs @@ -55,7 +55,7 @@ impl<'gcc, 'tcx> DebugInfoMethods<'tcx> for CodegenCx<'gcc, 'tcx> { _fn_abi: &FnAbi<'tcx, Ty<'tcx>>, _llfn: RValue<'gcc>, _mir: &mir::Body<'tcx>, - ) -> Option<FunctionDebugContext<'tcx, Self::DIScope, Self::DILocation>> { + ) -> Option<FunctionDebugContext<Self::DIScope, Self::DILocation>> { // TODO(antoyo) None } diff --git a/compiler/rustc_codegen_gcc/src/type_of.rs b/compiler/rustc_codegen_gcc/src/type_of.rs index 84d57838512..cc467801beb 100644 --- a/compiler/rustc_codegen_gcc/src/type_of.rs +++ b/compiler/rustc_codegen_gcc/src/type_of.rs @@ -4,7 +4,7 @@ use gccjit::{Struct, Type}; use crate::rustc_codegen_ssa::traits::{BaseTypeMethods, DerivedTypeMethods, LayoutTypeMethods}; use rustc_middle::bug; use rustc_middle::ty::{self, Ty, TypeVisitableExt}; -use rustc_middle::ty::layout::{FnAbiOf, LayoutOf, TyAndLayout}; +use rustc_middle::ty::layout::{LayoutOf, TyAndLayout}; use rustc_middle::ty::print::with_no_trimmed_paths; use rustc_target::abi::{self, Abi, Align, F32, F64, FieldsShape, Int, Integer, Pointer, PointeeInfo, Size, TyAbiInterface, Variants}; use rustc_target::abi::call::{CastTarget, FnAbi, Reg}; @@ -74,8 +74,8 @@ fn uncached_gcc_type<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, layout: TyAndLayout Abi::ScalarPair(..) => { return cx.type_struct( &[ - layout.scalar_pair_element_gcc_type(cx, 0, false), - layout.scalar_pair_element_gcc_type(cx, 1, false), + layout.scalar_pair_element_gcc_type(cx, 0), + layout.scalar_pair_element_gcc_type(cx, 1), ], false, ); @@ -150,7 +150,7 @@ pub trait LayoutGccExt<'tcx> { fn gcc_type<'gcc>(&self, cx: &CodegenCx<'gcc, 'tcx>) -> Type<'gcc>; fn immediate_gcc_type<'gcc>(&self, cx: &CodegenCx<'gcc, 'tcx>) -> Type<'gcc>; fn scalar_gcc_type_at<'gcc>(&self, cx: &CodegenCx<'gcc, 'tcx>, scalar: &abi::Scalar, offset: Size) -> Type<'gcc>; - fn scalar_pair_element_gcc_type<'gcc>(&self, cx: &CodegenCx<'gcc, 'tcx>, index: usize, immediate: bool) -> Type<'gcc>; + fn scalar_pair_element_gcc_type<'gcc>(&self, cx: &CodegenCx<'gcc, 'tcx>, index: usize) -> Type<'gcc>; fn gcc_field_index(&self, index: usize) -> u64; fn pointee_info_at<'gcc>(&self, cx: &CodegenCx<'gcc, 'tcx>, offset: Size) -> Option<PointeeInfo>; } @@ -182,23 +182,16 @@ impl<'tcx> LayoutGccExt<'tcx> for TyAndLayout<'tcx> { /// of that field's type - this is useful for taking the address of /// that field and ensuring the struct has the right alignment. fn gcc_type<'gcc>(&self, cx: &CodegenCx<'gcc, 'tcx>) -> Type<'gcc> { + // This must produce the same result for `repr(transparent)` wrappers as for the inner type! + // In other words, this should generally not look at the type at all, but only at the + // layout. if let Abi::Scalar(ref scalar) = self.abi { // Use a different cache for scalars because pointers to DSTs // can be either fat or thin (data pointers of fat pointers). if let Some(&ty) = cx.scalar_types.borrow().get(&self.ty) { return ty; } - let ty = - match *self.ty.kind() { - ty::Ref(_, ty, _) | ty::RawPtr(ty::TypeAndMut { ty, .. }) => { - cx.type_ptr_to(cx.layout_of(ty).gcc_type(cx)) - } - ty::Adt(def, _) if def.is_box() => { - cx.type_ptr_to(cx.layout_of(self.ty.boxed_ty()).gcc_type(cx)) - } - ty::FnPtr(sig) => cx.fn_ptr_backend_type(&cx.fn_abi_of_fn_ptr(sig, ty::List::empty())), - _ => self.scalar_gcc_type_at(cx, scalar, Size::ZERO), - }; + let ty = self.scalar_gcc_type_at(cx, scalar, Size::ZERO); cx.scalar_types.borrow_mut().insert(self.ty, ty); return ty; } @@ -272,23 +265,10 @@ impl<'tcx> LayoutGccExt<'tcx> for TyAndLayout<'tcx> { } } - fn scalar_pair_element_gcc_type<'gcc>(&self, cx: &CodegenCx<'gcc, 'tcx>, index: usize, immediate: bool) -> Type<'gcc> { - // TODO(antoyo): remove llvm hack: - // HACK(eddyb) special-case fat pointers until LLVM removes - // pointee types, to avoid bitcasting every `OperandRef::deref`. - match self.ty.kind() { - ty::Ref(..) | ty::RawPtr(_) => { - return self.field(cx, index).gcc_type(cx); - } - // only wide pointer boxes are handled as pointers - // thin pointer boxes with scalar allocators are handled by the general logic below - ty::Adt(def, args) if def.is_box() && cx.layout_of(args.type_at(1)).is_zst() => { - let ptr_ty = Ty::new_mut_ptr(cx.tcx,self.ty.boxed_ty()); - return cx.layout_of(ptr_ty).scalar_pair_element_gcc_type(cx, index, immediate); - } - _ => {} - } - + fn scalar_pair_element_gcc_type<'gcc>(&self, cx: &CodegenCx<'gcc, 'tcx>, index: usize) -> Type<'gcc> { + // This must produce the same result for `repr(transparent)` wrappers as for the inner type! + // In other words, this should generally not look at the type at all, but only at the + // layout. let (a, b) = match self.abi { Abi::ScalarPair(ref a, ref b) => (a, b), _ => bug!("TyAndLayout::scalar_pair_element_llty({:?}): not applicable", self), @@ -367,8 +347,8 @@ impl<'gcc, 'tcx> LayoutTypeMethods<'tcx> for CodegenCx<'gcc, 'tcx> { layout.gcc_field_index(index) } - fn scalar_pair_element_backend_type(&self, layout: TyAndLayout<'tcx>, index: usize, immediate: bool) -> Type<'gcc> { - layout.scalar_pair_element_gcc_type(self, index, immediate) + fn scalar_pair_element_backend_type(&self, layout: TyAndLayout<'tcx>, index: usize, _immediate: bool) -> Type<'gcc> { + layout.scalar_pair_element_gcc_type(self, index) } fn cast_backend_type(&self, ty: &CastTarget) -> Type<'gcc> { |