diff options
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 8bf72d15e8..b2eb0432e4 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -3713,7 +3713,7 @@ static unsigned getShuffleVPERM2X128Immediate(ShuffleVectorSDNode *SVOp) { /// type is 32 or 64. In the VPERMILPS the high half of the mask should point /// to the same elements of the low, but to the higher half of the source. /// In VPERMILPD the two lanes could be shuffled independently of each other -/// with the same restriction that lanes can't be crossed. +/// with the same restriction that lanes can't be crossed. Also handles PSHUFDY. static bool isVPERMILPMask(ArrayRef<int> Mask, EVT VT, bool HasAVX) { if (!HasAVX) return false; @@ -6467,6 +6467,9 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { unsigned TargetMask = X86::getShuffleSHUFImmediate(SVOp); + if (HasAVX && (VT == MVT::v4f32 || VT == MVT::v2f64)) + return getTargetShuffleNode(X86ISD::VPERMILP, dl, VT, V1, TargetMask, DAG); + if (HasSSE2 && (VT == MVT::v4f32 || VT == MVT::v4i32)) return getTargetShuffleNode(X86ISD::PSHUFD, dl, VT, V1, TargetMask, DAG); @@ -6636,9 +6639,13 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { return getTargetShuffleNode(X86ISD::MOVDDUP, dl, VT, V1, DAG); // Handle VPERMILPS/D* permutations - if (isVPERMILPMask(M, VT, HasAVX)) + if (isVPERMILPMask(M, VT, HasAVX)) { + if (HasAVX2 && VT == MVT::v8i32) + return getTargetShuffleNode(X86ISD::PSHUFD, dl, VT, V1, + X86::getShuffleSHUFImmediate(SVOp), DAG); return getTargetShuffleNode(X86ISD::VPERMILP, dl, VT, V1, X86::getShuffleSHUFImmediate(SVOp), DAG); + } // Handle VPERM2F128/VPERM2I128 permutations if (isVPERM2X128Mask(M, VT, HasAVX)) |