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author | Hal Finkel <hfinkel@anl.gov> | 2014-03-26 22:58:37 +0000 |
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committer | Hal Finkel <hfinkel@anl.gov> | 2014-03-26 22:58:37 +0000 |
commit | ee5f4bb6b3549d8c100f6084c0e430f802b1784c (patch) | |
tree | 174aed090b6551e797af4117ddd69827aa02b1df /lib/Target | |
parent | 7c3874103553fac204c7daeb8d3f6c15dc43c413 (diff) | |
download | llvm-ee5f4bb6b3549d8c100f6084c0e430f802b1784c.tar.gz llvm-ee5f4bb6b3549d8c100f6084c0e430f802b1784c.tar.bz2 llvm-ee5f4bb6b3549d8c100f6084c0e430f802b1784c.tar.xz |
[PowerPC] Generate VSX permutations for v2[fi]64 vectors
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204873 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
-rw-r--r-- | lib/Target/PowerPC/PPCISelDAGToDAG.cpp | 37 | ||||
-rw-r--r-- | lib/Target/PowerPC/PPCISelLowering.cpp | 12 | ||||
-rw-r--r-- | lib/Target/PowerPC/PPCInstrVSX.td | 1 |
3 files changed, 45 insertions, 5 deletions
diff --git a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp index c3f36756f6..d216026d2e 100644 --- a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp +++ b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp @@ -1336,6 +1336,43 @@ SDNode *PPCDAGToDAGISel::Select(SDNode *N) { } break; + case ISD::VECTOR_SHUFFLE: + if (PPCSubTarget.hasVSX() && (N->getValueType(0) == MVT::v2f64 || + N->getValueType(0) == MVT::v2i64)) { + ShuffleVectorSDNode *SVN = cast<ShuffleVectorSDNode>(N); + + SDValue Op1 = N->getOperand(SVN->getMaskElt(0) < 2 ? 0 : 1), + Op2 = N->getOperand(SVN->getMaskElt(1) < 2 ? 0 : 1); + unsigned DM[2]; + + for (int i = 0; i < 2; ++i) + if (SVN->getMaskElt(i) <= 0 || SVN->getMaskElt(i) == 2) + DM[i] = 0; + else + DM[i] = 1; + + SDValue DMV = CurDAG->getTargetConstant(DM[0] | (DM[1] << 1), MVT::i32); + + if (Op1 == Op2 && DM[0] == 0 && DM[1] == 0 && + Op1.getOpcode() == ISD::SCALAR_TO_VECTOR && + isa<LoadSDNode>(Op1.getOperand(0))) { + LoadSDNode *LD = cast<LoadSDNode>(Op1.getOperand(0)); + SDValue Base, Offset; + + if (LD->isUnindexed() && + SelectAddrIdxOnly(LD->getBasePtr(), Base, Offset)) { + SDValue Chain = LD->getChain(); + SDValue Ops[] = { Base, Offset, Chain }; + return CurDAG->SelectNodeTo(N, PPC::LXVDSX, + N->getValueType(0), Ops, 3); + } + } + + SDValue Ops[] = { Op1, Op2, DMV }; + return CurDAG->SelectNodeTo(N, PPC::XXPERMDI, N->getValueType(0), Ops, 3); + } + + break; case PPCISD::BDNZ: case PPCISD::BDZ: { bool IsPPC64 = PPCSubTarget.isPPC64(); diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp index 87639247e2..6f640183f9 100644 --- a/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/lib/Target/PowerPC/PPCISelLowering.cpp @@ -570,6 +570,8 @@ PPCTargetLowering::PPCTargetLowering(PPCTargetMachine &TM) setOperationAction(ISD::LOAD, MVT::v2f64, Legal); setOperationAction(ISD::STORE, MVT::v2f64, Legal); + setOperationAction(ISD::VECTOR_SHUFFLE, MVT::v2f64, Legal); + addRegisterClass(MVT::f64, &PPC::VSRCRegClass); addRegisterClass(MVT::v4f32, &PPC::VSRCRegClass); @@ -584,6 +586,8 @@ PPCTargetLowering::PPCTargetLowering(PPCTargetMachine &TM) setOperationAction(ISD::STORE, MVT::v2i64, Promote); AddPromotedToType (ISD::STORE, MVT::v2i64, MVT::v2f64); + setOperationAction(ISD::VECTOR_SHUFFLE, MVT::v2i64, Legal); + setOperationAction(ISD::SINT_TO_FP, MVT::v2i64, Legal); setOperationAction(ISD::UINT_TO_FP, MVT::v2i64, Legal); setOperationAction(ISD::FP_TO_SINT, MVT::v2i64, Legal); @@ -872,8 +876,8 @@ bool PPC::isVPKUWUMShuffleMask(ShuffleVectorSDNode *N, bool isUnary) { /// static bool isVMerge(ShuffleVectorSDNode *N, unsigned UnitSize, unsigned LHSStart, unsigned RHSStart) { - assert(N->getValueType(0) == MVT::v16i8 && - "PPC only supports shuffles by bytes!"); + if (N->getValueType(0) != MVT::v16i8) + return false; assert((UnitSize == 1 || UnitSize == 2 || UnitSize == 4) && "Unsupported merge size!"); @@ -910,8 +914,8 @@ bool PPC::isVMRGHShuffleMask(ShuffleVectorSDNode *N, unsigned UnitSize, /// isVSLDOIShuffleMask - If this is a vsldoi shuffle mask, return the shift /// amount, otherwise return -1. int PPC::isVSLDOIShuffleMask(SDNode *N, bool isUnary) { - assert(N->getValueType(0) == MVT::v16i8 && - "PPC only supports shuffles by bytes!"); + if (N->getValueType(0) != MVT::v16i8) + return false; ShuffleVectorSDNode *SVOp = cast<ShuffleVectorSDNode>(N); diff --git a/lib/Target/PowerPC/PPCInstrVSX.td b/lib/Target/PowerPC/PPCInstrVSX.td index 8410912c20..643ba1fbb0 100644 --- a/lib/Target/PowerPC/PPCInstrVSX.td +++ b/lib/Target/PowerPC/PPCInstrVSX.td @@ -53,7 +53,6 @@ let Uses = [RM] in { def LXVDSX : XForm_1<31, 332, (outs vsrc:$XT), (ins memrr:$src), "lxvdsx $XT, $src", IIC_LdStLFD, []>; - // TODO: match load + splat to lxvdsx. def LXVW4X : XForm_1<31, 780, (outs vsrc:$XT), (ins memrr:$src), |