[llvm] BOLT PowerPC Port (PR #140894)

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<summary>
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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions cpp,h -- bolt/lib/Target/PowerPC/PPCMCPlusBuilder.cpp bolt/include/bolt/Core/MCPlusBuilder.h bolt/lib/Rewrite/RewriteInstance.cpp
``````````

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<details>
<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/bolt/include/bolt/Core/MCPlusBuilder.h b/bolt/include/bolt/Core/MCPlusBuilder.h
index d290251dd..fa043a49b 100644
--- a/bolt/include/bolt/Core/MCPlusBuilder.h
+++ b/bolt/include/bolt/Core/MCPlusBuilder.h
@@ -2294,9 +2294,9 @@ MCPlusBuilder *createRISCVMCPlusBuilder(const MCInstrAnalysis *,
                                         const MCSubtargetInfo *);
 
 MCPlusBuilder *createPowerPCMCPlusBuilder(const MCInstrAnalysis *,
-                                        const MCInstrInfo *,
-                                        const MCRegisterInfo *,
-                                        const MCSubtargetInfo *);
+                                          const MCInstrInfo *,
+                                          const MCRegisterInfo *,
+                                          const MCSubtargetInfo *);
 
 } // namespace bolt
 } // namespace llvm
diff --git a/bolt/lib/Target/PowerPC/PPCMCPlusBuilder.cpp b/bolt/lib/Target/PowerPC/PPCMCPlusBuilder.cpp
index 0bbbef985..39d5ed2d3 100644
--- a/bolt/lib/Target/PowerPC/PPCMCPlusBuilder.cpp
+++ b/bolt/lib/Target/PowerPC/PPCMCPlusBuilder.cpp
@@ -21,25 +21,26 @@
 namespace llvm {
 namespace bolt {
 
-class PPCMCPlusBuilder : public MCPlusBuilder{
+class PPCMCPlusBuilder : public MCPlusBuilder {
 public:
-    using MCPlusBuilder::MCPlusBuilder;
-
-    // Create instructions to push two registers onto the stack
-    static void createPushRegisters(MCInst &Inst1, MCInst &Inst2, MCPhysReg Reg1, MCPhysReg /*Reg2*/){
-
-        Inst1.clear();
-        Inst1.setOpcode(PPC::STDU);
-        Inst1.addOperand(MCOperand::createReg(PPC::R1)); // destination (SP)
-        Inst1.addOperand(MCOperand::createReg(PPC::R1)); // base (SP)
-        Inst1.addOperand(MCOperand::createImm(-16));     // offset
-
-        Inst2.clear();
-        Inst2.setOpcode(PPC::STD);
-        Inst2.addOperand(MCOperand::createReg(Reg1));     // source register
-        Inst2.addOperand(MCOperand::createReg(PPC::R1));  // base (SP)
-        Inst2.addOperand(MCOperand::createImm(0));        // offset
-    }
+  using MCPlusBuilder::MCPlusBuilder;
+
+  // Create instructions to push two registers onto the stack
+  static void createPushRegisters(MCInst &Inst1, MCInst &Inst2, MCPhysReg Reg1,
+                                  MCPhysReg /*Reg2*/) {
+
+    Inst1.clear();
+    Inst1.setOpcode(PPC::STDU);
+    Inst1.addOperand(MCOperand::createReg(PPC::R1)); // destination (SP)
+    Inst1.addOperand(MCOperand::createReg(PPC::R1)); // base (SP)
+    Inst1.addOperand(MCOperand::createImm(-16));     // offset
+
+    Inst2.clear();
+    Inst2.setOpcode(PPC::STD);
+    Inst2.addOperand(MCOperand::createReg(Reg1));    // source register
+    Inst2.addOperand(MCOperand::createReg(PPC::R1)); // base (SP)
+    Inst2.addOperand(MCOperand::createImm(0));       // offset
+  }
 };
 
 MCPlusBuilder *createPowerPCMCPlusBuilder(const MCInstrAnalysis *Analysis,
@@ -51,4 +52,3 @@ MCPlusBuilder *createPowerPCMCPlusBuilder(const MCInstrAnalysis *Analysis,
 
 } // namespace bolt
 } // namespace llvm
-

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https://github.com/llvm/llvm-project/pull/140894