diff options
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 6de6b21c78..0616513b5e 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -2675,7 +2675,8 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDOperand Op, SelectionDAG &DAG) { return Op; } - if (X86::isSHUFPMask(PermMask.Val)) + if (X86::isSHUFPMask(PermMask.Val) && + MVT::getSizeInBits(VT) != 64) // Don't do this for MMX. return Op; // Handle v8i16 shuffle high / low shuffle node pair. @@ -2712,7 +2713,9 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDOperand Op, SelectionDAG &DAG) { } } - if (NumElems == 4) { + if (NumElems == 4 && + // Don't do this for MMX. + MVT::getSizeInBits(VT) != 64) { MVT::ValueType MaskVT = PermMask.getValueType(); MVT::ValueType MaskEVT = MVT::getVectorBaseType(MaskVT); SmallVector<std::pair<int, int>, 8> Locs; |