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| author | Brad Smith <brad@comstyle.com> | 2020-08-27 17:17:38 -0400 |
|---|---|---|
| committer | Brad Smith <brad@comstyle.com> | 2020-08-27 17:17:38 -0400 |
| commit | d870e363263835bec96c83f51b20e64722cad742 (patch) | |
| tree | 0d07dc790a7faf6782c51687dc08b882d7341c22 /llvm/lib/CodeGen/TargetLoweringBase.cpp | |
| parent | ba1de5f2f7b078f69d5f6b0fe3af4911f76bb8fd (diff) | |
| download | llvm-d870e363263835bec96c83f51b20e64722cad742.zip llvm-d870e363263835bec96c83f51b20e64722cad742.tar.gz llvm-d870e363263835bec96c83f51b20e64722cad742.tar.bz2 | |
[SSP] Restore setting the visibility of __guard_local to hidden for better code generation.
Patch by: Philip Guenther
Diffstat (limited to 'llvm/lib/CodeGen/TargetLoweringBase.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/TargetLoweringBase.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp index 868302a..40bb45a 100644 --- a/llvm/lib/CodeGen/TargetLoweringBase.cpp +++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp @@ -1844,7 +1844,10 @@ Value *TargetLoweringBase::getIRStackGuard(IRBuilder<> &IRB) const { if (getTargetMachine().getTargetTriple().isOSOpenBSD()) { Module &M = *IRB.GetInsertBlock()->getParent()->getParent(); PointerType *PtrTy = Type::getInt8PtrTy(M.getContext()); - return M.getOrInsertGlobal("__guard_local", PtrTy); + Constant *C = M.getOrInsertGlobal("__guard_local", PtrTy); + if (GlobalVariable *G = dyn_cast_or_null<GlobalVariable>(C)) + G->setVisibility(GlobalValue::HiddenVisibility); + return C; } return nullptr; } |