256 static bool shouldRematerialize(const MachineInstr &Def,  in shouldRematerialize()  argument
258   return Def.isAsCheapAsAMove() && TII->isTriviallyReMaterializable(Def);  in shouldRematerialize()
268   if (MachineInstr *Def = MRI.getUniqueVRegDef(Reg))  in getVRegDef()  local
269     return Def;  in getVRegDef()
282 static bool hasOneNonDBGUse(unsigned Reg, MachineInstr *Def,  in hasOneNonDBGUse()  argument
292       LI.getVNInfoAt(LIS.getInstructionIndex(*Def).getRegSlot());  in hasOneNonDBGUse()
312 static bool isSafeToMove(const MachineOperand *Def, const MachineOperand *Use,  in isSafeToMove()  argument
316   const MachineInstr *DefI = Def->getParent();  in isSafeToMove()
332   if (Def != DefI->defs().begin())  in isSafeToMove()
521                                       MachineInstr *Def, MachineBasicBlock &MBB,  in moveForSingleUse()  argument
525   LLVM_DEBUG(dbgs() << "Move for single use: "; Def->dump());  in moveForSingleUse()
527   WebAssemblyDebugValueManager DefDIs(Def);  in moveForSingleUse()
529   LIS.handleMove(*Def);  in moveForSingleUse()
547     LI.removeSegment(LIS.getInstructionIndex(*Def).getRegSlot(),  in moveForSingleUse()
553     LLVM_DEBUG(dbgs() << " - Replaced register: "; Def->dump());  in moveForSingleUse()
556   imposeStackOrdering(Def);  in moveForSingleUse()
557   return Def;  in moveForSingleUse()
570     unsigned Reg, MachineOperand &Op, MachineInstr &Def, MachineBasicBlock &MBB,  in rematerializeCheapDef()  argument
574   LLVM_DEBUG(dbgs() << "Rematerializing cheap def: "; Def.dump());  in rematerializeCheapDef()
577   WebAssemblyDebugValueManager DefDIs(&Def);  in rematerializeCheapDef()
596     IsDead = !LI.liveAt(LIS.getInstructionIndex(Def).getDeadSlot());  in rematerializeCheapDef()
602     SlotIndex Idx = LIS.getInstructionIndex(Def).getRegSlot();  in rematerializeCheapDef()
605     LIS.RemoveMachineInstrFromMaps(Def);  in rematerializeCheapDef()
633     unsigned Reg, MachineOperand &Op, MachineInstr *Def, MachineBasicBlock &MBB,  in moveAndTeeForMultiUse()  argument
636   LLVM_DEBUG(dbgs() << "Move and tee for multi-use:"; Def->dump());  in moveAndTeeForMultiUse()
643   WebAssemblyDebugValueManager DefDIs(Def);  in moveAndTeeForMultiUse()
645   LIS.handleMove(*Def);  in moveAndTeeForMultiUse()
648   MachineOperand &DefMO = Def->getOperand(0);  in moveAndTeeForMultiUse()
656   SlotIndex DefIdx = LIS.getInstructionIndex(*Def).getRegSlot();  in moveAndTeeForMultiUse()
671   imposeStackOrdering(Def);  in moveAndTeeForMultiUse()
680   LLVM_DEBUG(dbgs() << " - Replaced register: "; Def->dump());  in moveAndTeeForMultiUse()
682   return Def;  in moveAndTeeForMultiUse()
867         MachineOperand *Def = DefI->findRegisterDefOperand(Reg);  in runOnMachineFunction()  local
868         assert(Def != nullptr);  in runOnMachineFunction()
877         bool CanMove = SameBlock && isSafeToMove(Def, &Use, Insert, MFI, MRI) &&  in runOnMachineFunction()