Lines Matching defs:CSMI

138     bool PhysRegDefsReach(MachineInstr *CSMI, MachineInstr *MI,
340 bool MachineCSE::PhysRegDefsReach(MachineInstr *CSMI, MachineInstr *MI,
348   const MachineBasicBlock *CSMBB = CSMI->getParent();
364   MachineBasicBlock::const_iterator I = CSMI; I = std::next(I);
592         MachineInstr *CSMI = Exps[CSVN];
593         if (PhysRegDefsReach(CSMI, &MI, PhysRefs, PhysDefs, CrossMBBPhysDef))
606     MachineInstr *CSMI = Exps[CSVN];
608     LLVM_DEBUG(dbgs() << "*** Found a common subexpression: " << *CSMI);
619     if (MI.isConvergent() && MI.getParent() != CSMI->getParent()) {
636       Register NewReg = CSMI->getOperand(i).getReg();
638       // Go through implicit defs of CSMI and MI, if a def is not dead at MI,
639       // we should make sure it is not dead at CSMI.
640       if (MO.isImplicit() && !MO.isDead() && CSMI->getOperand(i).isDead())
643       // Keep track of implicit defs of CSMI and MI, to clear possibly
656       if (!isProfitableToCSE(NewReg, OldReg, CSMI->getParent(), &MI)) {
690       // Go through implicit defs of CSMI and MI, if a def is not dead at MI,
691       // we should make sure it is not dead at CSMI.
693         CSMI->getOperand(ImplicitDefToUpdate).setIsDead(false);
696           CSMI->getOperand(PhysDef.first).setIsDead(false);
698       // Go through implicit defs of CSMI and MI, and clear the kill flags on
699       // their uses in all the instructions between CSMI and MI.
701       //   subs  ... implicit-def %nzcv    <- CSMI
705       // Since we eliminated MI, and reused a register imp-def'd by CSMI
708       if (CSMI->getParent() == MI.getParent()) {
709         for (MachineBasicBlock::iterator II = CSMI, IE = &MI; II != IE; ++II)