It's possible for a global variable to be optimized out of a metadata object. So

we should allow a "null" with this dyn_cast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83573 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/Analysis/DebugInfo.cpp b/lib/Analysis/DebugInfo.cpp
index 1436aa909e..81d0ddb6f5 100644
--- a/lib/Analysis/DebugInfo.cpp
+++ b/lib/Analysis/DebugInfo.cpp
@@ -116,7 +116,7 @@ GlobalVariable *DIDescriptor::getGlobalVariableField(unsigned Elt) const {
     return 0;
 
   if (Elt < DbgNode->getNumElements())
-      return dyn_cast<GlobalVariable>(DbgNode->getElement(Elt));
+      return dyn_cast_or_null<GlobalVariable>(DbgNode->getElement(Elt));
   return 0;
 }