lib/CodeGen/TwoAddressInstructionPass.cpp

105   bool isProfitableToCommute(unsigned regA, unsigned regB, unsigned regC,
508 isProfitableToCommute(unsigned regA, unsigned regB, unsigned regC,
544   unsigned ToRegA = getMappedReg(regA, DstRegMap);
1102   unsigned regA = MI.getOperand(DstIdx).getReg();
1109   if (TargetRegisterInfo::isVirtualRegister(regA))
1110     scanUses(regA);
1131       else if (isProfitableToCommute(regA, regB, regC, &MI, Dist)) {
1159     if (!regBKilled || isProfitableToConv3Addr(regA, regB)) {
1161       if (convertInstTo3Addr(mi, nmi, regA, regB, Dist)) {
1221         unsigned NewDstIdx = NewMIs[1]->findRegisterDefOperandIdx(regA);
1417     // Make sure regA is a legal regclass for the SrcIdx operand.