Slight tweak to the algorithm for getLinkage().

llvm-svn: 89932

clang/lib/AST/Decl.cpp

@@ -232,7 +232,7 @@ static NamedDecl::Linkage getLinkageForNamespaceScopeDecl(const NamedDecl *D) {
     //   declared to have external linkage; or
     // (there is no equivalent in C99)
     if (Context.getLangOptions().CPlusPlus &&
-        Var->getType().isConstQualified() && 
+        Var->getType().isConstant(Context) && 
         Var->getStorageClass() != VarDecl::Extern &&
         Var->getStorageClass() != VarDecl::PrivateExtern) {
       bool FoundExtern = false;

clang/test/CodeGenCXX/const-global-linkage.cpp

@@ -6,3 +6,8 @@ const int y = 20;
 // CHECK: @y = internal constant i32 20
 const int& b() { return y; }
 
+const char z1[] = "asdf";
+const char z2[] = "zxcv";
+// CHECK-NOT: @z1
+// CHECK: @z2 = internal constant
+const char* b2() { return z2; }