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| author | Bing1 Yu <bing1.yu@intel.com> | 2023-08-01 10:37:53 +0800 |
|---|---|---|
| committer | Bing1 Yu <bing1.yu@intel.com> | 2023-08-03 13:58:33 +0800 |
| commit | 6ee497aa0b48ad892447f29a90b4e61241949295 (patch) | |
| tree | c7bbd35d6108f5133a54660bce1814805d7dd471 /clang/lib/CodeGen/CodeGenModule.cpp | |
| parent | 2772c267ea741905bc18e716a80cfaadbf4075a2 (diff) | |
[X86][Regcall] Add an option to respect regcall ABI v.4 in win64&win32
Reviewed By: pengfei
Differential Revision: https://reviews.llvm.org/D155863
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenModule.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp index 8d2abc69c330..e7cbc748b7a3 100644 --- a/clang/lib/CodeGen/CodeGenModule.cpp +++ b/clang/lib/CodeGen/CodeGenModule.cpp @@ -1196,6 +1196,8 @@ void CodeGenModule::Release() { getModule().setOverrideStackAlignment(getCodeGenOpts().StackAlignment); if (getCodeGenOpts().SkipRaxSetup) getModule().addModuleFlag(llvm::Module::Override, "SkipRaxSetup", 1); + if (getLangOpts().RegCall4) + getModule().addModuleFlag(llvm::Module::Override, "RegCallv4", 1); if (getContext().getTargetInfo().getMaxTLSAlign()) getModule().addModuleFlag(llvm::Module::Error, "MaxTLSAlign", @@ -1707,7 +1709,10 @@ static std::string getMangledNameImpl(CodeGenModule &CGM, GlobalDecl GD, if (FD && FD->getType()->castAs<FunctionType>()->getCallConv() == CC_X86RegCall) { - Out << "__regcall3__" << II->getName(); + if (CGM.getLangOpts().RegCall4) + Out << "__regcall4__" << II->getName(); + else + Out << "__regcall3__" << II->getName(); } else if (FD && FD->hasAttr<CUDAGlobalAttr>() && GD.getKernelReferenceKind() == KernelReferenceKind::Stub) { Out << "__device_stub__" << II->getName(); |