1 //===-- lib/CodeGen/GlobalISel/GISelChangeObserver.cpp --------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file constains common code to combine machine functions at generic
12 //===----------------------------------------------------------------------===//
14 #include "llvm/CodeGen/GlobalISel/GISelChangeObserver.h"
15 #include "llvm/CodeGen/MachineRegisterInfo.h"
19 void GISelChangeObserver::changingAllUsesOfReg(
20 const MachineRegisterInfo &MRI, unsigned Reg) {
21 for (auto &ChangingMI : MRI.use_instructions(Reg)) {
22 changingInstr(ChangingMI);
23 ChangingAllUsesOfReg.insert(&ChangingMI);
27 void GISelChangeObserver::finishedChangingAllUsesOfReg() {
28 for (auto *ChangedMI : ChangingAllUsesOfReg)
29 changedInstr(*ChangedMI);
32 RAIIDelegateInstaller::RAIIDelegateInstaller(MachineFunction &MF,
33 MachineFunction::Delegate *Del)
34 : MF(MF), Delegate(Del) {
35 // Register this as the delegate for handling insertions and deletions of
40 RAIIDelegateInstaller::~RAIIDelegateInstaller() { MF.resetDelegate(Delegate); }