diff options
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 10632434c3d..58815524b0a 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -35112,8 +35112,13 @@ static SDValue combineExtractVectorElt(SDNode *N, SelectionDAG &DAG, // X86ISD::PEXTRW/X86ISD::PEXTRB in: // XFormVExtractWithShuffleIntoLoad, combineHorizontalPredicateResult and // combineBasicSADPattern. - if (IsPextr) + if (IsPextr) { + const TargetLowering &TLI = DAG.getTargetLoweringInfo(); + if (TLI.SimplifyDemandedBits( + SDValue(N, 0), APInt::getAllOnesValue(VT.getSizeInBits()), DCI)) + return SDValue(N, 0); return SDValue(); + } if (SDValue NewOp = XFormVExtractWithShuffleIntoLoad(N, DAG, DCI)) return NewOp; |
