diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 3d3db6bf2f2..7e904e52525 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -3509,9 +3509,12 @@ static bool isVPERMILPSMask(const SmallVectorImpl<int> &Mask, EVT VT, int LaneSize = NumElts/NumLanes; for (int i = 0; i < LaneSize; ++i) { int HighElt = i+LaneSize; - if (Mask[i] < 0 && (isUndefOrInRange(Mask[HighElt], LaneSize, NumElts))) - continue; - if (Mask[HighElt] < 0 && (isUndefOrInRange(Mask[i], 0, LaneSize))) + bool HighValid = isUndefOrInRange(Mask[HighElt], LaneSize, NumElts); + bool LowValid = isUndefOrInRange(Mask[i], 0, LaneSize); + + if (!HighValid || !LowValid) + return false; + if (Mask[i] < 0 || Mask[HighElt] < 0) continue; if (Mask[HighElt]-Mask[i] != LaneSize) return false; |
