[llvm] [Exegesis][RISCV] Add RISCV support for llvm-exegesis (PR #89047)

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git-clang-format --diff 971237dab259bdaa619403fc6472bd1758d4dc18 0855ea1284edab29d0df18c8b6d3c3a347ef9f6c -- llvm/tools/llvm-exegesis/lib/RISCV/RISCVCounters.cpp llvm/tools/llvm-exegesis/lib/RISCV/RISCVCounters.h llvm/tools/llvm-exegesis/lib/RISCV/Target.cpp llvm/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.h llvm/tools/llvm-exegesis/lib/Assembler.cpp llvm/tools/llvm-exegesis/lib/BenchmarkCode.h llvm/tools/llvm-exegesis/lib/CodeTemplate.cpp llvm/tools/llvm-exegesis/lib/CodeTemplate.h llvm/tools/llvm-exegesis/lib/LlvmState.cpp llvm/tools/llvm-exegesis/lib/MCInstrDescView.cpp llvm/tools/llvm-exegesis/lib/MCInstrDescView.h llvm/tools/llvm-exegesis/lib/PerfHelper.h llvm/tools/llvm-exegesis/lib/SerialSnippetGenerator.cpp llvm/tools/llvm-exegesis/lib/SnippetFile.cpp llvm/tools/llvm-exegesis/lib/SnippetGenerator.cpp llvm/tools/llvm-exegesis/lib/SnippetGenerator.h llvm/tools/llvm-exegesis/lib/Target.h llvm/tools/llvm-exegesis/llvm-exegesis.cpp
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View the diff from clang-format here.
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diff --git a/llvm/tools/llvm-exegesis/lib/RISCV/Target.cpp b/llvm/tools/llvm-exegesis/lib/RISCV/Target.cpp
index be989bde4c..69b6c7644e 100644
--- a/llvm/tools/llvm-exegesis/lib/RISCV/Target.cpp
+++ b/llvm/tools/llvm-exegesis/lib/RISCV/Target.cpp
@@ -101,11 +101,9 @@ public:
 ExegesisRISCVTarget::ExegesisRISCVTarget()
     : ExegesisTarget(RISCVCpuPfmCounters, RISCV_MC::isOpcodeAvailable) {}
 
-Expected<std::unique_ptr<pfm::CounterGroup>>
-ExegesisRISCVTarget::createCounter(StringRef CounterName,
-                                   const LLVMState &State,
-                                   ArrayRef<const char *> ValidationCounters,
-                                   const pid_t ProcessID) const {
+Expected<std::unique_ptr<pfm::CounterGroup>> ExegesisRISCVTarget::createCounter(
+    StringRef CounterName, const LLVMState &State,
+    ArrayRef<const char *> ValidationCounters, const pid_t ProcessID) const {
   if (CounterName == RISCVPfmCounterNames[0]) {
     return createRISCVCpuCyclesCounter(pfm::PerfEvent(CounterName));
   }
@@ -271,8 +269,8 @@ std::vector<MCInst> ExegesisRISCVTarget::setRegTo(const MCSubtargetInfo &STI,
   return {};
 }
 
-const unsigned DefaultLoopCounterReg = RISCV::X31;   // t6
-const unsigned ScratchMemoryReg = RISCV::X10; // a0
+const unsigned DefaultLoopCounterReg = RISCV::X31; // t6
+const unsigned ScratchMemoryReg = RISCV::X10;      // a0
 
 unsigned
 ExegesisRISCVTarget::getDefaultLoopCounterRegister(const Triple &) const {
@@ -281,7 +279,7 @@ ExegesisRISCVTarget::getDefaultLoopCounterRegister(const Triple &) const {
 
 void ExegesisRISCVTarget::decrementLoopCounterAndJump(
     MachineBasicBlock &MBB, MachineBasicBlock &TargetMBB,
-    const MCInstrInfo &MII, unsigned LoopRegister) const{
+    const MCInstrInfo &MII, unsigned LoopRegister) const {
   BuildMI(&MBB, DebugLoc(), MII.get(RISCV::ADDI))
       .addDef(LoopRegister)
       .addUse(LoopRegister)
diff --git a/llvm/tools/llvm-exegesis/lib/SnippetGenerator.cpp b/llvm/tools/llvm-exegesis/lib/SnippetGenerator.cpp
index 814cf042f4..8eaf83044e 100644
--- a/llvm/tools/llvm-exegesis/lib/SnippetGenerator.cpp
+++ b/llvm/tools/llvm-exegesis/lib/SnippetGenerator.cpp
@@ -73,9 +73,9 @@ Error SnippetGenerator::generateConfigurations(
     for (CodeTemplate &CT : Templates) {
       // TODO: Generate as many BenchmarkCode as needed.
       {
-      CT.ScratchSpacePointerInReg =
-          State.getExegesisTarget().getScratchMemoryRegister(
-              State.getTargetMachine().getTargetTriple());
+        CT.ScratchSpacePointerInReg =
+            State.getExegesisTarget().getScratchMemoryRegister(
+                State.getTargetMachine().getTargetTriple());
         BenchmarkCode BC;
         BC.Info = CT.Info;
         BC.Key.Instructions.reserve(CT.Instructions.size());

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https://github.com/llvm/llvm-project/pull/89047