diff options
| -rw-r--r-- | src/abi/mod.rs | 14 | ||||
| -rw-r--r-- | src/base.rs | 7 | ||||
| -rw-r--r-- | src/lib.rs | 1 |
3 files changed, 22 insertions, 0 deletions
diff --git a/src/abi/mod.rs b/src/abi/mod.rs index 6e846d721f2..b33587f8948 100644 --- a/src/abi/mod.rs +++ b/src/abi/mod.rs @@ -8,8 +8,11 @@ use std::borrow::Cow; use cranelift_codegen::ir::SigRef; use cranelift_module::ModuleError; +use rustc_codegen_ssa::errors::CompilerBuiltinsCannotCall; use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags; use rustc_middle::ty::layout::FnAbiOf; +use rustc_middle::ty::print::with_no_trimmed_paths; +use rustc_monomorphize::is_call_from_compiler_builtins_to_upstream_monomorphization; use rustc_session::Session; use rustc_span::source_map::Spanned; use rustc_target::abi::call::{Conv, FnAbi}; @@ -372,6 +375,17 @@ pub(crate) fn codegen_terminator_call<'tcx>( ty::Instance::expect_resolve(fx.tcx, ty::ParamEnv::reveal_all(), def_id, fn_args) .polymorphize(fx.tcx); + if is_call_from_compiler_builtins_to_upstream_monomorphization(fx.tcx, instance) { + if target.is_some() { + let caller = with_no_trimmed_paths!(fx.tcx.def_path_str(fx.instance.def_id())); + let callee = with_no_trimmed_paths!(fx.tcx.def_path_str(def_id)); + fx.tcx.dcx().emit_err(CompilerBuiltinsCannotCall { caller, callee }); + } else { + fx.bcx.ins().trap(TrapCode::User(0)); + return; + } + } + if fx.tcx.symbol_name(instance).name.starts_with("llvm.") { crate::intrinsics::codegen_llvm_intrinsic_call( fx, diff --git a/src/base.rs b/src/base.rs index 2415c2c90b2..047dc56a32e 100644 --- a/src/base.rs +++ b/src/base.rs @@ -8,6 +8,7 @@ use rustc_index::IndexVec; use rustc_middle::ty::adjustment::PointerCoercion; use rustc_middle::ty::layout::FnAbiOf; use rustc_middle::ty::print::with_no_trimmed_paths; +use rustc_monomorphize::is_call_from_compiler_builtins_to_upstream_monomorphization; use crate::constant::ConstantCx; use crate::debuginfo::FunctionDebugContext; @@ -999,6 +1000,12 @@ fn codegen_panic_inner<'tcx>( let def_id = fx.tcx.require_lang_item(lang_item, span); let instance = Instance::mono(fx.tcx, def_id).polymorphize(fx.tcx); + + if is_call_from_compiler_builtins_to_upstream_monomorphization(fx.tcx, instance) { + fx.bcx.ins().trap(TrapCode::User(0)); + return; + } + let symbol_name = fx.tcx.symbol_name(instance).name; fx.lib_call( diff --git a/src/lib.rs b/src/lib.rs index 7e2e1f7c6ac..a59a39074f8 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -21,6 +21,7 @@ extern crate rustc_hir; extern crate rustc_incremental; extern crate rustc_index; extern crate rustc_metadata; +extern crate rustc_monomorphize; extern crate rustc_session; extern crate rustc_span; extern crate rustc_target; |