[CodeGen] Fix a simple FIXME. NFC.
diff --git a/llvm/lib/CodeGen/MachineLoopUtils.cpp b/llvm/lib/CodeGen/MachineLoopUtils.cpp
index cf30e28..2295e1c 100644
--- a/llvm/lib/CodeGen/MachineLoopUtils.cpp
+++ b/llvm/lib/CodeGen/MachineLoopUtils.cpp
@@ -42,8 +42,7 @@
else
MF.insert(std::next(Loop->getIterator()), NewBB);
- // FIXME: Add DenseMapInfo trait for Register so we can use it as a key.
- DenseMap<unsigned, Register> Remaps;
+ DenseMap<Register, Register> Remaps;
auto InsertPt = NewBB->end();
for (MachineInstr &MI : *Loop) {
MachineInstr *NewMI = MF.CloneMachineInstr(&MI);