From 65497583b522cedf4c687631b2f858bb9ae742b7 Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Wed, 21 Jul 2010 18:08:50 +0000
Subject: Fix regression caused by r108911. Do not override known debug loc
 with unknown debug loc. This is tested by sections.exp in gdb testsuite.

llvm-svn: 109022
---
 clang/lib/CodeGen/CGCall.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'clang/lib/CodeGen/CGCall.cpp')

diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index c127d9281f1..b22e349d952 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -1058,7 +1058,8 @@ void CodeGenFunction::EmitFunctionEpilog(const CGFunctionInfo &FI) {
   }
 
   llvm::Instruction *Ret = RV ? Builder.CreateRet(RV) : Builder.CreateRetVoid();
-  Ret->setDebugLoc(RetDbgLoc);
+  if (!RetDbgLoc.isUnknown())
+    Ret->setDebugLoc(RetDbgLoc);
 }
 
 RValue CodeGenFunction::EmitDelegateCallArg(const VarDecl *Param) {
-- 
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