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-rw-r--r--llvm/lib/Analysis/InstructionSimplify.cpp5
1 files changed, 0 insertions, 5 deletions
diff --git a/llvm/lib/Analysis/InstructionSimplify.cpp b/llvm/lib/Analysis/InstructionSimplify.cpp
index 7765cb70..6eb995d 100644
--- a/llvm/lib/Analysis/InstructionSimplify.cpp
+++ b/llvm/lib/Analysis/InstructionSimplify.cpp
@@ -4302,11 +4302,6 @@ Value *llvm::SimplifyInsertElementInst(Value *Vec, Value *Val, Value *Idx,
if (isa<UndefValue>(Idx))
return UndefValue::get(Vec->getType());
- // Inserting an undef scalar? Assume it is the same value as the existing
- // vector element.
- if (isa<UndefValue>(Val))
- return Vec;
-
// If we are extracting a value from a vector, then inserting it into the same
// place, that's the input vector:
// insertelt Vec, (extractelt Vec, Idx), Idx --> Vec