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-rw-r--r--llvm/lib/Target/X86/X86ISelLowering.cpp3
1 files changed, 0 insertions, 3 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 1b0e4fc3bf4..401effb5cb1 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -20033,9 +20033,6 @@ static SDValue combineShuffleToAddSub(SDNode *N, SelectionDAG &DAG) {
VT == MVT::v4f64) &&
"Unknown vector type encountered!");
- // FIXME: Munge the inputs through no-op shuffles that drop the undef lanes to
- // allow nuking any instructions that feed only those lanes.
-
return DAG.getNode(X86ISD::ADDSUB, DL, VT, LHS, RHS);
}
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