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author | dim <dim@FreeBSD.org> | 2014-02-27 23:17:00 +0000 |
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committer | dim <dim@FreeBSD.org> | 2014-02-27 23:17:00 +0000 |
commit | 38fa7d76e5a9aef6ea103daed45df9f82c310c0b (patch) | |
tree | bde8638a5fce5bd049de9ffa8abebc0b8fc20c55 /contrib/llvm | |
parent | 09b56e694e5d4e67943f0d9c4668282053726b9f (diff) | |
download | FreeBSD-src-38fa7d76e5a9aef6ea103daed45df9f82c310c0b.zip FreeBSD-src-38fa7d76e5a9aef6ea103daed45df9f82c310c0b.tar.gz |
Pull in r202422 from upstream llvm trunk (by Roman Divacky):
Lower FNEG just like FABS to fneg[ds] and fmov[ds], thus avoiding
expensive libcall. Also, Qp_neg is not implemented on at least
FreeBSD. This is also what gcc is doing.
Diffstat (limited to 'contrib/llvm')
-rw-r--r-- | contrib/llvm/lib/Target/Sparc/SparcISelLowering.cpp | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/contrib/llvm/lib/Target/Sparc/SparcISelLowering.cpp b/contrib/llvm/lib/Target/Sparc/SparcISelLowering.cpp index 9952086..6271ec9 100644 --- a/contrib/llvm/lib/Target/Sparc/SparcISelLowering.cpp +++ b/contrib/llvm/lib/Target/Sparc/SparcISelLowering.cpp @@ -2644,24 +2644,16 @@ static SDValue LowerF128Store(SDValue Op, SelectionDAG &DAG) { &OutChains[0], 2); } -static SDValue LowerFNEG(SDValue Op, SelectionDAG &DAG, - const SparcTargetLowering &TLI, - bool is64Bit) { - if (Op.getValueType() == MVT::f64) - return LowerF64Op(Op, DAG, ISD::FNEG); - if (Op.getValueType() == MVT::f128) - return TLI.LowerF128Op(Op, DAG, ((is64Bit) ? "_Qp_neg" : "_Q_neg"), 1); - return Op; -} +static SDValue LowerFNEGorFABS(SDValue Op, SelectionDAG &DAG, bool isV9) { + assert((Op.getOpcode() == ISD::FNEG || Op.getOpcode() == ISD::FABS) && "invalid"); -static SDValue LowerFABS(SDValue Op, SelectionDAG &DAG, bool isV9) { if (Op.getValueType() == MVT::f64) - return LowerF64Op(Op, DAG, ISD::FABS); + return LowerF64Op(Op, DAG, Op.getOpcode()); if (Op.getValueType() != MVT::f128) return Op; - // Lower fabs on f128 to fabs on f64 - // fabs f128 => fabs f64:sub_even64, fmov f64:sub_odd64 + // Lower fabs/fneg on f128 to fabs/fneg on f64 + // fabs/fneg f128 => fabs/fneg f64:sub_even64, fmov f64:sub_odd64 SDLoc dl(Op); SDValue SrcReg128 = Op.getOperand(0); @@ -2672,7 +2664,7 @@ static SDValue LowerFABS(SDValue Op, SelectionDAG &DAG, bool isV9) { if (isV9) Hi64 = DAG.getNode(Op.getOpcode(), dl, MVT::f64, Hi64); else - Hi64 = LowerF64Op(Hi64, DAG, ISD::FABS); + Hi64 = LowerF64Op(Hi64, DAG, Op.getOpcode()); SDValue DstReg128 = SDValue(DAG.getMachineNode(TargetOpcode::IMPLICIT_DEF, dl, MVT::f128), 0); @@ -2793,7 +2785,6 @@ SDValue SparcTargetLowering:: LowerOperation(SDValue Op, SelectionDAG &DAG) const { bool hasHardQuad = Subtarget->hasHardQuad(); - bool is64Bit = Subtarget->is64Bit(); bool isV9 = Subtarget->isV9(); switch (Op.getOpcode()) { @@ -2836,8 +2827,8 @@ LowerOperation(SDValue Op, SelectionDAG &DAG) const { getLibcallName(RTLIB::DIV_F128), 2); case ISD::FSQRT: return LowerF128Op(Op, DAG, getLibcallName(RTLIB::SQRT_F128),1); - case ISD::FNEG: return LowerFNEG(Op, DAG, *this, is64Bit); - case ISD::FABS: return LowerFABS(Op, DAG, isV9); + case ISD::FABS: + case ISD::FNEG: return LowerFNEGorFABS(Op, DAG, isV9); case ISD::FP_EXTEND: return LowerF128_FPEXTEND(Op, DAG, *this); case ISD::FP_ROUND: return LowerF128_FPROUND(Op, DAG, *this); case ISD::ADDC: |