add support for UndefValue

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17260 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Analysis/DataStructure/Local.cpp b/lib/Analysis/DataStructure/Local.cpp
index 473fb630dc4de7906794f20a6617a2fb92bbf35b..9036ecd5a5b7c9fd524f852e41c6f3b4c3417d30 100644 (file)
--- a/lib/Analysis/DataStructure/Local.cpp
+++ b/lib/Analysis/DataStructure/Local.cpp
@@ -1014,7 +1014,7 @@ void GraphBuilder::MergeConstantInitIntoNode(DSNodeHandle &NH, Constant *C) {
       DSNodeHandle NewNH(NH.getNode(), NH.getOffset()+SL->MemberOffsets[i]);
       MergeConstantInitIntoNode(NewNH, cast<Constant>(CS->getOperand(i)));
     }
-  } else if (ConstantAggregateZero *CAZ = dyn_cast<ConstantAggregateZero>(C)) {
+  } else if (isa<ConstantAggregateZero>(C) || isa<UndefValue>(C)) {
     // Noop
   } else {
     assert(0 && "Unknown constant type!");