diff --git a/lib/Transforms/IPO/InlineSimple.cpp b/lib/Transforms/IPO/InlineSimple.cpp
index 38bf0610b38..ebd8a595f21 100644
--- a/lib/Transforms/IPO/InlineSimple.cpp
+++ b/lib/Transforms/IPO/InlineSimple.cpp
@@ -59,6 +59,10 @@ bool SimpleInliner::doInitialization(CallGraph &CG) {
   if (GV == 0)
     return false;
 
+  // Don't crash on invalid code
+  if (!GV->hasInitializer())
+    return false;
+  
   const ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer());
   
   if (InitList == 0)