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-rw-r--r--llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp6
1 files changed, 0 insertions, 6 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp b/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
index e625f804a23..fb7177f1ddb 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
@@ -1469,12 +1469,6 @@ Value *InstCombiner::SimplifyDemandedVectorElts(Value *V, APInt DemandedElts,
Depth + 1);
if (TmpV) { II->setArgOperand(1, TmpV); MadeChange = true; }
- // Output elements are undefined if both are undefined. Consider things
- // like undef*0. The result is known zero, not undef.
- for (unsigned i = 0; i != VWidth; ++i)
- if (UndefElts2[i * 2] && UndefElts3[i * 2])
- UndefElts.setBit(i);
-
break;
}
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