MDString is already checked earlier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107516 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/ValueMapper.cpp b/lib/Transforms/Utils/ValueMapper.cpp
index 1ef13ba..3f6a90c 100644
--- a/lib/Transforms/Utils/ValueMapper.cpp
+++ b/lib/Transforms/Utils/ValueMapper.cpp
@@ -45,7 +45,7 @@
if (isa<ConstantInt>(C) || isa<ConstantFP>(C) ||
isa<ConstantPointerNull>(C) || isa<ConstantAggregateZero>(C) ||
- isa<UndefValue>(C) || isa<MDString>(C))
+ isa<UndefValue>(C))
return VMSlot = C; // Primitive constants map directly
if (ConstantArray *CA = dyn_cast<ConstantArray>(C)) {