diff options
| -rw-r--r-- | lib/Target/PowerPC/PPCISelDAGToDAG.cpp | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp index 0ed454033b..57dc1604f4 100644 --- a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp +++ b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp @@ -695,10 +695,36 @@ SDOperand PPC32DAGToDAGISel::Select(SDOperand Op) { case MVT::f32: Opc = PPC::FMULS; break; case MVT::f64: Opc = PPC::FMUL; break; } - CurDAG->SelectNodeTo(N, N->getValueType(0), Opc, Select(N->getOperand(0)), + CurDAG->SelectNodeTo(N, MVT::i32, Opc, Select(N->getOperand(0)), Select(N->getOperand(1))); break; } + case ISD::SDIV: { + unsigned Imm; + if (isIntImmediate(N->getOperand(1), Imm)) { + if ((signed)Imm > 0 && isPowerOf2_32(Imm)) { + SDOperand Op = + CurDAG->getTargetNode(PPC::SRAWI, MVT::i32, MVT::Flag, + Select(N->getOperand(0)), + getI32Imm(Log2_32(Imm))); + CurDAG->SelectNodeTo(N, MVT::i32, PPC::ADDZE, + Op.getValue(0), Op.getValue(1)); + break; + } else if ((signed)Imm < 0 && isPowerOf2_32(-Imm)) { + SDOperand Op = + CurDAG->getTargetNode(PPC::SRAWI, MVT::Flag, MVT::i32, + Select(N->getOperand(0)), + getI32Imm(Log2_32(-Imm))); + SDOperand PT = + CurDAG->getTargetNode(PPC::ADDZE, MVT::i32, Op.getValue(1), + Op.getValue(0)); + CurDAG->SelectNodeTo(N, MVT::i32, PPC::NEG, PT); + break; + } + } + assert(0 && "SDIV not implemented yet!"); + abort(); + } case ISD::MULHS: assert(N->getValueType(0) == MVT::i32); CurDAG->SelectNodeTo(N, MVT::i32, PPC::MULHW, Select(N->getOperand(0)), |