Add support for UndefValue
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17046 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/ValueMapper.cpp b/lib/Transforms/Utils/ValueMapper.cpp
index d7507f9..299a093 100644
--- a/lib/Transforms/Utils/ValueMapper.cpp
+++ b/lib/Transforms/Utils/ValueMapper.cpp
@@ -31,7 +31,8 @@
if (Constant *C = const_cast<Constant*>(dyn_cast<Constant>(V))) {
if (isa<ConstantIntegral>(C) || isa<ConstantFP>(C) ||
- isa<ConstantPointerNull>(C) || isa<ConstantAggregateZero>(C))
+ isa<ConstantPointerNull>(C) || isa<ConstantAggregateZero>(C) ||
+ isa<UndefValue>(C))
return VMSlot = C; // Primitive constants map directly
else if (ConstantArray *CA = dyn_cast<ConstantArray>(C)) {
for (unsigned i = 0, e = CA->getNumOperands(); i != e; ++i) {