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authorFariborz Jahanian <fjahanian@apple.com>2011-06-16 14:49:42 +0000
committerFariborz Jahanian <fjahanian@apple.com>2011-06-16 14:49:42 +0000
commita27070db0c9fb2048b818a1aba8f425c1436b1d3 (patch)
tree3243082b5df3466b209512babaeba2733ab2e905 /clang/lib/CodeGen/CodeGenModule.cpp
parent0df100e1aaf2401c0365d9d9e017270e9a2a26f6 (diff)
downloadbcm5719-llvm-a27070db0c9fb2048b818a1aba8f425c1436b1d3.tar.gz
bcm5719-llvm-a27070db0c9fb2048b818a1aba8f425c1436b1d3.zip
Set the visibility to 'hidden' when previous
declaration of global var is __private_extern__. // rdar://9609649 llvm-svn: 133157
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
-rw-r--r--clang/lib/CodeGen/CodeGenModule.cpp13
1 files changed, 11 insertions, 2 deletions
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 78c57b4e3f2..c15ef9b0890 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/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)
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