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| author | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2010-08-31 21:38:49 +0000 |
|---|---|---|
| committer | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2010-08-31 21:38:49 +0000 |
| commit | 7ff30bb1a5b04e52a0b2a3a2cb961eb34a7dde56 (patch) | |
| tree | f1252c30adb02a2aa3f0c6ad939939a656d604a8 /lib/Target/X86/X86ISelLowering.cpp | |
| parent | b5d84d13bc338efc4eeed87d19c49dfaed38e036 (diff) | |
| download | external_llvm-7ff30bb1a5b04e52a0b2a3a2cb961eb34a7dde56.zip external_llvm-7ff30bb1a5b04e52a0b2a3a2cb961eb34a7dde56.tar.gz external_llvm-7ff30bb1a5b04e52a0b2a3a2cb961eb34a7dde56.tar.bz2 | |
Use MOVHLPS node instead of matching using movhlps and movhlps_undef pattern fragments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112644 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index d413e6c..1b18eb6 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -2585,6 +2585,7 @@ static bool isTargetShuffle(unsigned Opcode) { case X86ISD::SHUFPD: case X86ISD::SHUFPS: case X86ISD::MOVLHPS: + case X86ISD::MOVHLPS: case X86ISD::MOVSS: case X86ISD::MOVSD: case X86ISD::PUNPCKLDQ: @@ -2624,6 +2625,7 @@ static SDValue getTargetShuffleNode(unsigned Opc, DebugLoc dl, EVT VT, default: llvm_unreachable("Unknown x86 shuffle node"); case X86ISD::MOVLHPS: case X86ISD::MOVLHPD: + case X86ISD::MOVHLPS: case X86ISD::MOVSS: case X86ISD::MOVSD: case X86ISD::PUNPCKLDQ: @@ -5021,6 +5023,22 @@ SDValue getMOVLowToHigh(SDValue &Op, DebugLoc &dl, SelectionDAG &DAG, return getTargetShuffleNode(X86ISD::MOVLHPS, dl, VT, V1, V2, DAG); } +static +SDValue getMOVHighToLow(SDValue &Op, DebugLoc &dl, SelectionDAG &DAG) { + SDValue V1 = Op.getOperand(0); + SDValue V2 = Op.getOperand(1); + EVT VT = Op.getValueType(); + + assert((VT == MVT::v4i32 || VT == MVT::v4f32) && + "unsupported shuffle type"); + + if (V2.getOpcode() == ISD::UNDEF) + V2 = V1; + + // v4i32 or v4f32 + return getTargetShuffleNode(X86ISD::MOVHLPS, dl, VT, V1, V2, DAG); +} + SDValue X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { ShuffleVectorSDNode *SVOp = cast<ShuffleVectorSDNode>(Op); @@ -5131,6 +5149,9 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { if (X86::isMOVLHPSMask(SVOp) && !X86::isUNPCKLMask(SVOp)) return getMOVLowToHigh(Op, dl, DAG, HasSSE2); + if (X86::isMOVHLPSMask(SVOp)) + return getMOVHighToLow(Op, dl, DAG); + if (X86::isMOVSHDUPMask(SVOp) || X86::isMOVSLDUPMask(SVOp) || X86::isMOVHLPSMask(SVOp) || |