diff options
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp index b617966c113..0a22a40c84a 100644 --- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp @@ -1083,6 +1083,7 @@ const char *PPCTargetLowering::getTargetNodeName(unsigned Opcode) const { case PPCISD::MFBHRBE: return "PPCISD::MFBHRBE"; case PPCISD::RFEBB: return "PPCISD::RFEBB"; case PPCISD::XXSWAPD: return "PPCISD::XXSWAPD"; + case PPCISD::SWAP_NO_CHAIN: return "PPCISD::SWAP_NO_CHAIN"; case PPCISD::QVFPERM: return "PPCISD::QVFPERM"; case PPCISD::QVGPCI: return "PPCISD::QVGPCI"; case PPCISD::QVALIGNI: return "PPCISD::QVALIGNI"; @@ -7356,6 +7357,14 @@ SDValue PPCTargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, DAG.getConstant(SplatIdx, dl, MVT::i32)); return DAG.getNode(ISD::BITCAST, dl, MVT::v16i8, Splat); } + + // Left shifts of 8 bytes are actually swaps. Convert accordingly. + if (V2.isUndef() && PPC::isVSLDOIShuffleMask(SVOp, 1, DAG) == 8) { + SDValue Conv = DAG.getNode(ISD::BITCAST, dl, MVT::v2f64, V1); + SDValue Swap = DAG.getNode(PPCISD::SWAP_NO_CHAIN, dl, MVT::v2f64, Conv); + return DAG.getNode(ISD::BITCAST, dl, MVT::v16i8, Swap); + } + } if (Subtarget.hasQPX()) { |
