257 static bool shouldRematerialize(const MachineInstr &Def,  in shouldRematerialize()  argument
259   return Def.isAsCheapAsAMove() && TII->isTriviallyReMaterializable(Def);  in shouldRematerialize()
269   if (MachineInstr *Def = MRI.getUniqueVRegDef(Reg))  in getVRegDef()  local
270     return Def;  in getVRegDef()
283 static bool hasOneNonDBGUse(unsigned Reg, MachineInstr *Def,  in hasOneNonDBGUse()  argument
293       LI.getVNInfoAt(LIS.getInstructionIndex(*Def).getRegSlot());  in hasOneNonDBGUse()
313 static bool isSafeToMove(const MachineOperand *Def, const MachineOperand *Use,  in isSafeToMove()  argument
317   const MachineInstr *DefI = Def->getParent();  in isSafeToMove()
333   if (Def != DefI->defs().begin())  in isSafeToMove()
524                                       MachineInstr *Def, MachineBasicBlock &MBB,  in moveForSingleUse()  argument
528   LLVM_DEBUG(dbgs() << "Move for single use: "; Def->dump());  in moveForSingleUse()
530   WebAssemblyDebugValueManager DefDIs(Def);  in moveForSingleUse()
532   LIS.handleMove(*Def);  in moveForSingleUse()
550     LI.removeSegment(LIS.getInstructionIndex(*Def).getRegSlot(),  in moveForSingleUse()
556     LLVM_DEBUG(dbgs() << " - Replaced register: "; Def->dump());  in moveForSingleUse()
559   imposeStackOrdering(Def);  in moveForSingleUse()
560   return Def;  in moveForSingleUse()
573     unsigned Reg, MachineOperand &Op, MachineInstr &Def, MachineBasicBlock &MBB,  in rematerializeCheapDef()  argument
577   LLVM_DEBUG(dbgs() << "Rematerializing cheap def: "; Def.dump());  in rematerializeCheapDef()
580   WebAssemblyDebugValueManager DefDIs(&Def);  in rematerializeCheapDef()
599     IsDead = !LI.liveAt(LIS.getInstructionIndex(Def).getDeadSlot());  in rematerializeCheapDef()
605     SlotIndex Idx = LIS.getInstructionIndex(Def).getRegSlot();  in rematerializeCheapDef()
608     LIS.RemoveMachineInstrFromMaps(Def);  in rematerializeCheapDef()
636     unsigned Reg, MachineOperand &Op, MachineInstr *Def, MachineBasicBlock &MBB,  in moveAndTeeForMultiUse()  argument
639   LLVM_DEBUG(dbgs() << "Move and tee for multi-use:"; Def->dump());  in moveAndTeeForMultiUse()
646   WebAssemblyDebugValueManager DefDIs(Def);  in moveAndTeeForMultiUse()
648   LIS.handleMove(*Def);  in moveAndTeeForMultiUse()
651   MachineOperand &DefMO = Def->getOperand(0);  in moveAndTeeForMultiUse()
659   SlotIndex DefIdx = LIS.getInstructionIndex(*Def).getRegSlot();  in moveAndTeeForMultiUse()
674   imposeStackOrdering(Def);  in moveAndTeeForMultiUse()
683   LLVM_DEBUG(dbgs() << " - Replaced register: "; Def->dump());  in moveAndTeeForMultiUse()
685   return Def;  in moveAndTeeForMultiUse()
870         MachineOperand *Def =  in runOnMachineFunction()  local
872         assert(Def != nullptr);  in runOnMachineFunction()
881         bool CanMove = SameBlock && isSafeToMove(Def, &Use, Insert, MFI, MRI) &&  in runOnMachineFunction()