From edb4563ceae52e67f0b5cb2f084e3e8da6eba7d3 Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Thu, 10 Dec 2009 23:25:41 +0000
Subject: [PATCH] If VariableDIe is not created (may be because global was
 optimzed away) then do not try to use the variable die.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91077 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index c7b3cfed871..1cd28db1194 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -1632,6 +1632,8 @@ void DwarfDebug::constructGlobalVariableDIE(MDNode *N) {
     return;
 
   DIE *VariableDie = createGlobalVariableDIE(DI_GV);
+  if (!VariableDie)
+    return;
 
   // Add to map.
   ModuleCU->insertDIE(N, VariableDie);