// Check if this register has a use that will impact the rest of the
// code. Uses in debug and noreturn instructions do not impact the
// generated code.
- for (MachineRegisterInfo::reg_instr_nodbg_iterator It =
- MRI->reg_instr_nodbg_begin(Reg),
- EndIt = MRI->reg_instr_nodbg_end(); It != EndIt; ++It) {
- if (!NoReturnInsts.count(&(*It))) {
+ for (MachineInstr &It : MRI->reg_nodbg_instructions(Reg)) {
+ if (!NoReturnInsts.count(&It)) {
MRI->setPhysRegUsed(Reg);
break;
}