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| author | Fariborz Jahanian <fjahanian@apple.com> | 2011-06-16 14:49:42 +0000 |
|---|---|---|
| committer | Fariborz Jahanian <fjahanian@apple.com> | 2011-06-16 14:49:42 +0000 |
| commit | 119f19b46b79cbe48f1992911588a728dfa5ad2e (patch) | |
| tree | 9133f3c821d92246abe80cc668f8d9251b3b070b /lib/CodeGen/CodeGenModule.cpp | |
| parent | c37039803a18c7f0f0975a618147d336de3d3d58 (diff) | |
Set the visibility to 'hidden' when previous
declaration of global var is __private_extern__.
// rdar://9609649
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133157 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CodeGenModule.cpp')
| -rw-r--r-- | lib/CodeGen/CodeGenModule.cpp | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp index 78c57b4e3f..c15ef9b089 100644 --- a/lib/CodeGen/CodeGenModule.cpp +++ b/lib/CodeGen/CodeGenModule.cpp @@ -206,8 +206,17 @@ void CodeGenModule::setGlobalVisibility(llvm::GlobalValue *GV, // Set visibility for definitions. NamedDecl::LinkageInfo LV = D->getLinkageAndVisibility(); - if (LV.visibilityExplicit() || !GV->hasAvailableExternallyLinkage()) - GV->setVisibility(GetLLVMVisibility(LV.visibility())); + if (LV.visibilityExplicit() || !GV->hasAvailableExternallyLinkage()) { + Visibility Vis = LV.visibility(); + if (Vis == DefaultVisibility) + if (const VarDecl *VD = dyn_cast<VarDecl>(D)) + if (const VarDecl *Old = VD->getPreviousDeclaration()) { + Visibility OldVis = Old->getLinkageAndVisibility().visibility(); + if (OldVis == HiddenVisibility) + Vis = HiddenVisibility; + } + GV->setVisibility(GetLLVMVisibility(Vis)); + } } /// Set the symbol visibility of type information (vtable and RTTI) |