Mark pure asm as willreturn

2021-02-20 17:02:23 +01:00
parent 41b81584e2
commit bc96516a28
4 changed files with 5 additions and 0 deletions
--- a/compiler/rustc_codegen_llvm/src/asm.rs
+++ b/compiler/rustc_codegen_llvm/src/asm.rs
@@ -304,6 +304,7 @@ impl AsmBuilderMethods<'tcx> for Builder<'a, 'll, 'tcx> {
            } else if options.contains(InlineAsmOptions::READONLY) {
                llvm::Attribute::ReadOnly.apply_callsite(llvm::AttributePlace::Function, result);
            }
+            llvm::Attribute::WillReturn.apply_callsite(llvm::AttributePlace::Function, result);
        } else if options.contains(InlineAsmOptions::NOMEM) {
            llvm::Attribute::InaccessibleMemOnly
                .apply_callsite(llvm::AttributePlace::Function, result);