[llvm] [AArch64][NFC] Switch to LiveRegUnits (PR #138322)

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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions cpp -- llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
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View the diff from clang-format here.
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diff --git a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
index ecef1b4d2..b226c4c14 100644
--- a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
+++ b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
@@ -1669,7 +1669,7 @@ static void emitDefineCFAWithFP(MachineFunction &MF, MachineBasicBlock &MBB,
 /// Collect live registers from the end of \p MI's parent up to (including) \p
 /// MI in \p LiveRegs.
 static void getLiveRegsUpTo(MachineInstr &MI, const TargetRegisterInfo &TRI,
-                                LiveRegUnits &LiveRegs) {
+                            LiveRegUnits &LiveRegs) {
 
   MachineBasicBlock &MBB = *MI.getParent();
   LiveRegs.addLiveOuts(MBB);

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https://github.com/llvm/llvm-project/pull/138322