diff options
Diffstat (limited to 'clang/lib/CodeGen/TargetInfo.cpp')
| -rw-r--r-- | clang/lib/CodeGen/TargetInfo.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/TargetInfo.cpp b/clang/lib/CodeGen/TargetInfo.cpp index 77b9b4caab5..10fa2ea322c 100644 --- a/clang/lib/CodeGen/TargetInfo.cpp +++ b/clang/lib/CodeGen/TargetInfo.cpp @@ -2297,6 +2297,15 @@ public: if (!IsForDefinition) return; if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) { + if (FD->hasAttr<X86ForceAlignArgPointerAttr>()) { + // Get the LLVM function. + auto *Fn = cast<llvm::Function>(GV); + + // Now add the 'alignstack' attribute with a value of 16. + llvm::AttrBuilder B; + B.addStackAlignmentAttr(16); + Fn->addAttributes(llvm::AttributeList::FunctionIndex, B); + } if (FD->hasAttr<AnyX86InterruptAttr>()) { llvm::Function *Fn = cast<llvm::Function>(GV); Fn->setCallingConv(llvm::CallingConv::X86_INTR); @@ -2425,6 +2434,15 @@ void WinX86_64TargetCodeGenInfo::setTargetAttributes( if (!IsForDefinition) return; if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) { + if (FD->hasAttr<X86ForceAlignArgPointerAttr>()) { + // Get the LLVM function. + auto *Fn = cast<llvm::Function>(GV); + + // Now add the 'alignstack' attribute with a value of 16. + llvm::AttrBuilder B; + B.addStackAlignmentAttr(16); + Fn->addAttributes(llvm::AttributeList::FunctionIndex, B); + } if (FD->hasAttr<AnyX86InterruptAttr>()) { llvm::Function *Fn = cast<llvm::Function>(GV); Fn->setCallingConv(llvm::CallingConv::X86_INTR); |
