From 1f917f69ff07f09b6dbb670971f57f8efe718b84 Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Thu, 14 Jul 2022 20:50:02 +0200 Subject: Vendor import of llvm-project main llvmorg-15-init-16436-g18a6ab5b8d1f. --- clang/lib/CodeGen/CodeGenFunction.cpp | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'clang/lib/CodeGen/CodeGenFunction.cpp') diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp index 05942f462dd1..17c1c91c7e8f 100644 --- a/clang/lib/CodeGen/CodeGenFunction.cpp +++ b/clang/lib/CodeGen/CodeGenFunction.cpp @@ -898,6 +898,20 @@ void CodeGenFunction::StartFunction(GlobalDecl GD, QualType RetTy, if (D && D->hasAttr()) Fn->addFnAttr(llvm::Attribute::NoProfile); + if (D) { + // Function attributes take precedence over command line flags. + if (auto *A = D->getAttr()) { + switch (A->getThunkType()) { + case FunctionReturnThunksAttr::Kind::Keep: + break; + case FunctionReturnThunksAttr::Kind::Extern: + Fn->addFnAttr(llvm::Attribute::FnRetThunkExtern); + break; + } + } else if (CGM.getCodeGenOpts().FunctionReturnThunks) + Fn->addFnAttr(llvm::Attribute::FnRetThunkExtern); + } + if (FD && (getLangOpts().OpenCL || (getLangOpts().HIP && getLangOpts().CUDAIsDevice))) { // Add metadata for a kernel function. -- cgit v1.3