[llvm] [MachineSSAUpdater][AMDGPU] Add faster version of MachineSSAUpdater class. (PR #145722)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- llvm/include/llvm/CodeGen/MachineIDFSSAUpdater.h llvm/lib/CodeGen/MachineIDFSSAUpdater.cpp llvm/lib/Target/AMDGPU/SILowerI1Copies.cpp
``````````

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``````````diff
diff --git a/llvm/include/llvm/CodeGen/MachineIDFSSAUpdater.h b/llvm/include/llvm/CodeGen/MachineIDFSSAUpdater.h
index 067120dd4..8a8ae3a3e 100644
--- a/llvm/include/llvm/CodeGen/MachineIDFSSAUpdater.h
+++ b/llvm/include/llvm/CodeGen/MachineIDFSSAUpdater.h
@@ -45,12 +45,12 @@ class MachineIDFSSAUpdater {
 
 public:
   MachineIDFSSAUpdater(MachineDominatorTree &DT, MachineFunction &MF,
-                     const MachineRegisterInfo::VRegAttrs &RegAttr)
+                       const MachineRegisterInfo::VRegAttrs &RegAttr)
       : DT(DT), MRI(MF.getRegInfo()), TII(*MF.getSubtarget().getInstrInfo()),
         RegAttrs(RegAttr) {}
 
   MachineIDFSSAUpdater(MachineDominatorTree &DT, MachineFunction &MF,
-                     Register Reg)
+                       Register Reg)
       : MachineIDFSSAUpdater(DT, MF, MF.getRegInfo().getVRegAttrs(Reg)) {}
 
   /// Indicate that a rewritten value is available in the specified block
diff --git a/llvm/lib/CodeGen/MachineIDFSSAUpdater.cpp b/llvm/lib/CodeGen/MachineIDFSSAUpdater.cpp
index ffe78e11a..0eefdf373 100644
--- a/llvm/lib/CodeGen/MachineIDFSSAUpdater.cpp
+++ b/llvm/lib/CodeGen/MachineIDFSSAUpdater.cpp
@@ -84,7 +84,7 @@ computeLiveInBlocks(const SmallPtrSetImpl<MachineBasicBlock *> &UsingBlocks,
 
 MachineInstrBuilder
 MachineIDFSSAUpdater::createInst(unsigned Opc, MachineBasicBlock *BB,
-                               MachineBasicBlock::iterator I) {
+                                 MachineBasicBlock::iterator I) {
   return BuildMI(*BB, I, DebugLoc(), TII.get(Opc),
                  MRI.createVirtualRegister(RegAttrs));
 }
@@ -92,7 +92,7 @@ MachineIDFSSAUpdater::createInst(unsigned Opc, MachineBasicBlock *BB,
 // IsLiveOut indicates whether we are computing live-out values (true) or
 // live-in values (false).
 Register MachineIDFSSAUpdater::computeValue(MachineBasicBlock *BB,
-                                          bool IsLiveOut) {
+                                            bool IsLiveOut) {
   BBValueInfo *BBInfo = &BBInfos[BB];
 
   if (IsLiveOut && BBInfo->LiveOutValue)
diff --git a/llvm/lib/Target/AMDGPU/SILowerI1Copies.cpp b/llvm/lib/Target/AMDGPU/SILowerI1Copies.cpp
index c01f8f1f7..aae1334a0 100644
--- a/llvm/lib/Target/AMDGPU/SILowerI1Copies.cpp
+++ b/llvm/lib/Target/AMDGPU/SILowerI1Copies.cpp
@@ -23,8 +23,8 @@
 
 #include "SILowerI1Copies.h"
 #include "AMDGPU.h"
-#include "llvm/CodeGen/MachineSSAUpdater.h"
 #include "llvm/CodeGen/MachineIDFSSAUpdater.h"
+#include "llvm/CodeGen/MachineSSAUpdater.h"
 #include "llvm/InitializePasses.h"
 
 #define DEBUG_TYPE "si-i1-copies"

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https://github.com/llvm/llvm-project/pull/145722