diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 18b3bb25cae..7bf58e20dac 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -7519,9 +7519,10 @@ static SDValue lowerV8I16SingleInputVectorShuffle( int FreeDWord = (PSHUFDMask[DestOffset / 2] == -1 ? 0 : 1) + DestOffset / 2; assert(PSHUFDMask[FreeDWord] == -1 && "DWord not free"); PSHUFDMask[FreeDWord] = IncomingInputs[0] / 2; - for (int Input : IncomingInputs) - std::replace(HalfMask.begin(), HalfMask.end(), Input, - FreeDWord * 2 + Input % 2); + for (int &M : HalfMask) + for (int Input : IncomingInputs) + if (M == Input) + M = FreeDWord * 2 + Input % 2; }; moveInputsToRightHalf(HToLInputs, LToLInputs, PSHUFHMask, LoMask, /*SourceOffset*/ 4, /*DestOffset*/ 0);