Switch a number of loops in lib/CodeGen over to range-based for-loops, now that
the MachineRegisterInfo iterators are compatible with it.
llvm-svn: 204075
diff --git a/llvm/lib/CodeGen/VirtRegMap.cpp b/llvm/lib/CodeGen/VirtRegMap.cpp
index 54bc6f8..f892e94 100644
--- a/llvm/lib/CodeGen/VirtRegMap.cpp
+++ b/llvm/lib/CodeGen/VirtRegMap.cpp
@@ -418,10 +418,8 @@
// 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;
}