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-rw-r--r--llvm/lib/Target/X86/X86ISelLowering.cpp15
1 files changed, 5 insertions, 10 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 44e3f18c401..7d16dd9b623 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -28433,18 +28433,13 @@ static SDValue XFormVExtractWithShuffleIntoLoad(SDNode *N, SelectionDAG &DAG,
EVT OriginalVT = InVec.getValueType();
- if (InVec.getOpcode() == ISD::BITCAST) {
- // Don't duplicate a load with other uses.
- if (!InVec.hasOneUse())
- return SDValue();
- EVT BCVT = InVec.getOperand(0).getValueType();
- if (!BCVT.isVector() ||
- BCVT.getVectorNumElements() != OriginalVT.getVectorNumElements())
- return SDValue();
- InVec = InVec.getOperand(0);
- }
+ // Peek through bitcasts, don't duplicate a load with other uses.
+ InVec = peekThroughOneUseBitcasts(InVec);
EVT CurrentVT = InVec.getValueType();
+ if (!CurrentVT.isVector() ||
+ CurrentVT.getVectorNumElements() != OriginalVT.getVectorNumElements())
+ return SDValue();
if (!isTargetShuffle(InVec.getOpcode()))
return SDValue();
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