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| author | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2010-08-31 21:15:21 +0000 |
|---|---|---|
| committer | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2010-08-31 21:15:21 +0000 |
| commit | f2db5b48d0a4f0800e83d8c3cd6dc5ad6a551bd6 (patch) | |
| tree | da1cb07a90623bd71020247d96edcee82b131920 /lib/Target/X86/X86ISelLowering.cpp | |
| parent | 26125c65b926fa02c9aa9f62ae462e533fd6d883 (diff) | |
| download | external_llvm-f2db5b48d0a4f0800e83d8c3cd6dc5ad6a551bd6.zip external_llvm-f2db5b48d0a4f0800e83d8c3cd6dc5ad6a551bd6.tar.gz external_llvm-f2db5b48d0a4f0800e83d8c3cd6dc5ad6a551bd6.tar.bz2 | |
Use MOVLHPS and MOVHLPS x86 nodes whenever possible. Also remove some useless nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112642 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 39 |
1 files changed, 28 insertions, 11 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 498efd5..d413e6c 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -2623,6 +2623,7 @@ static SDValue getTargetShuffleNode(unsigned Opc, DebugLoc dl, EVT VT, switch(Opc) { default: llvm_unreachable("Unknown x86 shuffle node"); case X86ISD::MOVLHPS: + case X86ISD::MOVLHPD: case X86ISD::MOVSS: case X86ISD::MOVSD: case X86ISD::PUNPCKLDQ: @@ -5004,6 +5005,22 @@ LowerVECTOR_SHUFFLE_4wide(ShuffleVectorSDNode *SVOp, SelectionDAG &DAG) { return DAG.getVectorShuffle(VT, dl, LoShuffle, HiShuffle, &MaskOps[0]); } +static +SDValue getMOVLowToHigh(SDValue &Op, DebugLoc &dl, SelectionDAG &DAG, + bool HasSSE2) { + SDValue V1 = Op.getOperand(0); + SDValue V2 = Op.getOperand(1); + EVT VT = Op.getValueType(); + + assert(VT != MVT::v2i64 && "unsupported shuffle type"); + + if (HasSSE2 && VT == MVT::v2f64) + return getTargetShuffleNode(X86ISD::MOVLHPD, dl, VT, V1, V2, DAG); + + // v4f32 or v4i32 + return getTargetShuffleNode(X86ISD::MOVLHPS, dl, VT, V1, V2, DAG); +} + SDValue X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { ShuffleVectorSDNode *SVOp = cast<ShuffleVectorSDNode>(Op); @@ -5110,12 +5127,16 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { } // FIXME: fold these into legal mask. - if (!isMMX && (X86::isMOVSHDUPMask(SVOp) || - X86::isMOVSLDUPMask(SVOp) || - X86::isMOVHLPSMask(SVOp) || - X86::isMOVLHPSMask(SVOp) || - X86::isMOVLPMask(SVOp))) - return Op; + if (!isMMX) { + if (X86::isMOVLHPSMask(SVOp) && !X86::isUNPCKLMask(SVOp)) + return getMOVLowToHigh(Op, dl, DAG, HasSSE2); + + if (X86::isMOVSHDUPMask(SVOp) || + X86::isMOVSLDUPMask(SVOp) || + X86::isMOVHLPSMask(SVOp) || + X86::isMOVLPMask(SVOp)) + return Op; + } if (ShouldXformToMOVHLPS(SVOp) || ShouldXformToMOVLP(V1.getNode(), V2.getNode(), SVOp)) @@ -8362,13 +8383,9 @@ const char *X86TargetLowering::getTargetNodeName(unsigned Opcode) const { case X86ISD::SHUFPS: return "X86ISD::SHUFPS"; case X86ISD::SHUFPD: return "X86ISD::SHUFPD"; case X86ISD::MOVLHPS: return "X86ISD::MOVLHPS"; - case X86ISD::MOVHLPS: return "X86ISD::MOVHLPS"; case X86ISD::MOVLHPD: return "X86ISD::MOVLHPD"; + case X86ISD::MOVHLPS: return "X86ISD::MOVHLPS"; case X86ISD::MOVHLPD: return "X86ISD::MOVHLPD"; - case X86ISD::MOVHPS: return "X86ISD::MOVHPS"; - case X86ISD::MOVLPS: return "X86ISD::MOVLPS"; - case X86ISD::MOVHPD: return "X86ISD::MOVHPD"; - case X86ISD::MOVLPD: return "X86ISD::MOVLPD"; case X86ISD::MOVDDUP: return "X86ISD::MOVDDUP"; case X86ISD::MOVSHDUP: return "X86ISD::MOVSHDUP"; case X86ISD::MOVSLDUP: return "X86ISD::MOVSLDUP"; |