diff options
Diffstat (limited to 'lib/Target/Alpha/AlphaISelPattern.cpp')
| -rw-r--r-- | lib/Target/Alpha/AlphaISelPattern.cpp | 51 |
1 files changed, 20 insertions, 31 deletions
diff --git a/lib/Target/Alpha/AlphaISelPattern.cpp b/lib/Target/Alpha/AlphaISelPattern.cpp index 1a20b2951d..c30c459c90 100644 --- a/lib/Target/Alpha/AlphaISelPattern.cpp +++ b/lib/Target/Alpha/AlphaISelPattern.cpp @@ -1275,10 +1275,7 @@ unsigned AlphaISel::SelectExpr(SDOperand N) { case ISD::SHL: Opc = Alpha::SL; break; case ISD::SRL: Opc = Alpha::SRL; break; case ISD::SRA: Opc = Alpha::SRA; break; - case ISD::MUL: - Opc = isFP ? (DestType == MVT::f64 ? Alpha::MULT : Alpha::MULS) - : Alpha::MULQ; - break; + case ISD::MUL: Opc = Alpha::MULQ; break; }; Tmp1 = SelectExpr(N.getOperand(0)); Tmp2 = SelectExpr(N.getOperand(1)); @@ -1288,25 +1285,7 @@ unsigned AlphaISel::SelectExpr(SDOperand N) { case ISD::ADD: case ISD::SUB: - if (isFP) { - ConstantFPSDNode *CN; - if (opcode == ISD::ADD) - Opc = DestType == MVT::f64 ? Alpha::ADDT : Alpha::ADDS; - else - Opc = DestType == MVT::f64 ? Alpha::SUBT : Alpha::SUBS; - if (opcode == ISD::SUB - && (CN = dyn_cast<ConstantFPSDNode>(N.getOperand(0))) - && (CN->isExactlyValue(+0.0) || CN->isExactlyValue(-0.0))) - { - Tmp2 = SelectExpr(N.getOperand(1)); - BuildMI(BB, Alpha::CPYSN, 2, Result).addReg(Tmp2).addReg(Tmp2); - } else { - Tmp1 = SelectExpr(N.getOperand(0)); - Tmp2 = SelectExpr(N.getOperand(1)); - BuildMI(BB, Opc, 2, Result).addReg(Tmp1).addReg(Tmp2); - } - return Result; - } else { + { bool isAdd = opcode == ISD::ADD; //first check for Scaled Adds and Subs! @@ -1369,15 +1348,25 @@ unsigned AlphaISel::SelectExpr(SDOperand N) { } return Result; } - + case ISD::FADD: + case ISD::FSUB: + case ISD::FMUL: + case ISD::FDIV: { + if (opcode == ISD::FADD) + Opc = DestType == MVT::f64 ? Alpha::ADDT : Alpha::ADDS; + else if (opcode == ISD::FSUB) + Opc = DestType == MVT::f64 ? Alpha::SUBT : Alpha::SUBS; + else if (opcode == ISD::FMUL) + Opc = DestType == MVT::f64 ? Alpha::MULT : Alpha::MULS; + else + Opc = DestType == MVT::f64 ? Alpha::DIVT : Alpha::DIVS; + Tmp1 = SelectExpr(N.getOperand(0)); + Tmp2 = SelectExpr(N.getOperand(1)); + BuildMI(BB, Opc, 2, Result).addReg(Tmp1).addReg(Tmp2); + return Result; + } case ISD::SDIV: - if (isFP) { - Tmp1 = SelectExpr(N.getOperand(0)); - Tmp2 = SelectExpr(N.getOperand(1)); - BuildMI(BB, DestType == MVT::f64 ? Alpha::DIVT : Alpha::DIVS, 2, Result) - .addReg(Tmp1).addReg(Tmp2); - return Result; - } else { + { //check if we can convert into a shift! if (isSIntImmediate(N.getOperand(1), SImm) && SImm != 0 && isPowerOf2_64(llabs(SImm))) { |