From 2f2df07fa4bcff566ccd586a52d29ed288caad6f Mon Sep 17 00:00:00 2001
From: David Blaikie <dblaikie@gmail.com>
Date: Fri, 4 Apr 2014 23:16:44 +0000
Subject: [PATCH] DebugInfo: Place global constants in their appropriate
 context.

We also don't need to duplicate the name in the LinkageName field. Just
leave it empty.

llvm-svn: 205655
---
 clang/lib/CodeGen/CGDebugInfo.cpp    | 5 ++++-
 clang/test/CodeGenCXX/debug-info.cpp | 9 ++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index 41f1ddb697c1..eed2f3c6155a 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -3230,8 +3230,11 @@ void CGDebugInfo::EmitGlobalVariable(const ValueDecl *VD,
   // Do not emit separate definitions for function local const/statics.
   if (isa<FunctionDecl>(VD->getDeclContext()))
     return;
+  llvm::DIDescriptor DContext =
+      getContextDescriptor(dyn_cast<Decl>(VD->getDeclContext()));
   llvm::DIGlobalVariable GV = DBuilder.createStaticVariable(
-      Unit, Name, Name, Unit, getLineNumber(VD->getLocation()), Ty, true, Init,
+      DContext, Name, StringRef(), Unit, getLineNumber(VD->getLocation()), Ty,
+      true, Init,
       getOrCreateStaticDataMemberDeclarationOrNull(cast<VarDecl>(VD)));
   DeclCache.insert(std::make_pair(VD->getCanonicalDecl(), llvm::WeakVH(GV)));
 }
diff --git a/clang/test/CodeGenCXX/debug-info.cpp b/clang/test/CodeGenCXX/debug-info.cpp
index 7c89dfc04ce1..26d647aa3567 100644
--- a/clang/test/CodeGenCXX/debug-info.cpp
+++ b/clang/test/CodeGenCXX/debug-info.cpp
@@ -83,9 +83,16 @@ foo func(foo f) {
 // CHECK: [[FUNC:![0-9]*]] = {{.*}} metadata !"_ZN7pr147634funcENS_3fooE", i32 {{[0-9]*}}, metadata [[FUNC_TYPE:![0-9]*]], {{.*}} ; [ DW_TAG_subprogram ] {{.*}} [def] [func]
 }
 
+namespace local_const {
+const wchar_t lc_c = L'x';
+}
+
+// CHECK: metadata [[LOCAL_CONST:![0-9]*]], metadata !"lc_c", {{.*}}; [ DW_TAG_variable ] [lc_c]
+// CHECK: [[LOCAL_CONST]] = {{.*}}; [ DW_TAG_namespace ] [local_const]
+
 void foo() {
   const wchar_t c = L'x';
-  wchar_t d = c;
+  wchar_t d = c + local_const::lc_c;
 }
 
 // CHECK-NOT: ; [ DW_TAG_variable ] [c]