CodeGen/SelectionDAG/SelectionDAG.cpp

1941       const APInt &C1 = N1C->getAPIntValue();
1945       case ISD::SETEQ:  return getConstant(C1 == C2, dl, VT);
1946       case ISD::SETNE:  return getConstant(C1 != C2, dl, VT);
1947       case ISD::SETULT: return getConstant(C1.ult(C2), dl, VT);
1948       case ISD::SETUGT: return getConstant(C1.ugt(C2), dl, VT);
1949       case ISD::SETULE: return getConstant(C1.ule(C2), dl, VT);
1950       case ISD::SETUGE: return getConstant(C1.uge(C2), dl, VT);
1951       case ISD::SETLT:  return getConstant(C1.slt(C2), dl, VT);
1952       case ISD::SETGT:  return getConstant(C1.sgt(C2), dl, VT);
1953       case ISD::SETLE:  return getConstant(C1.sle(C2), dl, VT);
1954       case ISD::SETGE:  return getConstant(C1.sge(C2), dl, VT);
2166     // (shl X, C1) & C2 == 0   iff   (X & C2 >>u C1) == 0
2182     // (ushr X, C1) & C2 == 0   iff  (-1 >> C1) & C2 == 0
3215 static std::pair<APInt, bool> FoldValue(unsigned Opcode, const APInt &C1,
3218   case ISD::ADD:  return std::make_pair(C1 + C2, true);
3219   case ISD::SUB:  return std::make_pair(C1 - C2, true);
3220   case ISD::MUL:  return std::make_pair(C1 * C2, true);
3221   case ISD::AND:  return std::make_pair(C1 & C2, true);
3222   case ISD::OR:   return std::make_pair(C1 | C2, true);
3223   case ISD::XOR:  return std::make_pair(C1 ^ C2, true);
3224   case ISD::SHL:  return std::make_pair(C1 << C2, true);
3225   case ISD::SRL:  return std::make_pair(C1.lshr(C2), true);
3226   case ISD::SRA:  return std::make_pair(C1.ashr(C2), true);
3227   case ISD::ROTL: return std::make_pair(C1.rotl(C2), true);
3228   case ISD::ROTR: return std::make_pair(C1.rotr(C2), true);
3229   case ISD::SMIN: return std::make_pair(C1.sle(C2) ? C1 : C2, true);
3230   case ISD::SMAX: return std::make_pair(C1.sge(C2) ? C1 : C2, true);
3231   case ISD::UMIN: return std::make_pair(C1.ule(C2) ? C1 : C2, true);
3232   case ISD::UMAX: return std::make_pair(C1.uge(C2) ? C1 : C2, true);
3236     return std::make_pair(C1.udiv(C2), true);
3240     return std::make_pair(C1.urem(C2), true);
3244     return std::make_pair(C1.sdiv(C2), true);
3248     return std::make_pair(C1.srem(C2), true);