// 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)
--- /dev/null
+// RUN: %clang_cc1 -triple x86_64-darwin-apple -emit-llvm -o - %s | FileCheck %s
+// rdar://9609649
+
+__private_extern__ const int I;
+__private_extern__ const int J = 927;
+
+__private_extern__ const int K;
+const int K = 37;
+
+const int L = 10;
+__private_extern__ const int L;
+
+__private_extern__ int M;
+int M = 20;
+
+__private_extern__ int N;
+int N;
+
+__private_extern__ int O;
+int O=1;
+
+__private_extern__ int P;
+extern int P;
+
+void bar(int);
+
+void foo() {
+ bar(I);
+}
+
+// CHECK: @J = hidden constant
+// CHECK: @K = hidden constant
+// CHECK: @L = constant
+// CHECK: @M = hidden global
+// CHECK: @O = hidden global
+// CHECK: @I = external hidden
+// CHECK: @N = common hidden global
+// CHECK-NOT: @P
+