[bolt] add support for bisecting bolt opt passes

[yubingex007-a11y]

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[github-actions]

⚠️ C/C++ code formatter, clang-format found issues in your code. ⚠️

You can test this locally with the following command:

git-clang-format --diff da5a86b53e7d6e7ff7407b16c2c869894493ee99 52ebaf4b313039fbb11a614cff3cf0cc99296264 -- bolt/include/bolt/Core/BoltBisect.h bolt/lib/Core/BoltBisect.cpp bolt/include/bolt/Core/BinaryContext.h bolt/include/bolt/Passes/BinaryPasses.h bolt/lib/Passes/BinaryPasses.cpp

View the diff from clang-format here.

diff --git a/bolt/include/bolt/Core/BinaryContext.h b/bolt/include/bolt/Core/BinaryContext.h
index 3b745ab24f..13252ba4db 100644
--- a/bolt/include/bolt/Core/BinaryContext.h
+++ b/bolt/include/bolt/Core/BinaryContext.h
@@ -36,8 +36,8 @@
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/MC/MCSymbol.h"
 #include "llvm/MC/TargetRegistry.h"
-#include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/ErrorOr.h"
+#include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/RWMutex.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/TargetParser/Triple.h"
@@ -267,10 +267,7 @@ class BinaryContext {
   void deregisterSectionName(const BinarySection &Section);
 
 public:
-
-  BoltBisect &getBoltBisect() const {
-    return *BoltBisector;
-  }
+  BoltBisect &getBoltBisect() const { return *BoltBisector; }
   static Expected<std::unique_ptr<BinaryContext>>
   createBinaryContext(Triple TheTriple, StringRef InputFileName,
                       SubtargetFeatures *Features, bool IsPIC,
diff --git a/bolt/include/bolt/Core/BoltBisect.h b/bolt/include/bolt/Core/BoltBisect.h
index f989e65ddc..f06faf89c0 100644
--- a/bolt/include/bolt/Core/BoltBisect.h
+++ b/bolt/include/bolt/Core/BoltBisect.h
@@ -1,4 +1,5 @@
-//===- llvm/IR/BoltBisect.h - LLVM Bisect support ----------------*- C++ -*-===//
+//===- llvm/IR/BoltBisect.h - LLVM Bisect support ----------------*- C++
+//-*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -23,16 +24,13 @@ class BoltPassGate {
 public:
   virtual ~BoltPassGate() = default;
 
-  virtual bool shouldRunPass(const StringRef PassName) {
-    return true;
-  }
+  virtual bool shouldRunPass(const StringRef PassName) { return true; }
 
   virtual bool isEnabled() const { return false; }
 };
 
 class BoltBisect : public BoltPassGate {
 public:
-
   BoltBisect() = default;
 
   virtual ~BoltBisect() = default;
diff --git a/bolt/lib/Core/BoltBisect.cpp b/bolt/lib/Core/BoltBisect.cpp
index 11d5556acd..c85d53864b 100644
--- a/bolt/lib/Core/BoltBisect.cpp
+++ b/bolt/lib/Core/BoltBisect.cpp
@@ -25,18 +25,16 @@ static BoltBisect &getBoltBisector() {
   return BoltBisector;
 }
 
-static cl::opt<int> BoltBisectLimit("opt-bisect-limit", cl::Hidden,
-                                   cl::init(BoltBisect::Disabled), cl::Optional,
-                                   cl::cb<void, int>([](int Limit) {
-                                     getBoltBisector().setLimit(Limit);
-                                   }),
-                                   cl::desc("Maximum optimization to perform"));
-
-static void printPassMessage(const StringRef &Name, int PassNum,
-                             bool Running) {
+static cl::opt<int> BoltBisectLimit(
+    "opt-bisect-limit", cl::Hidden, cl::init(BoltBisect::Disabled),
+    cl::Optional,
+    cl::cb<void, int>([](int Limit) { getBoltBisector().setLimit(Limit); }),
+    cl::desc("Maximum optimization to perform"));
+
+static void printPassMessage(const StringRef &Name, int PassNum, bool Running) {
   StringRef Status = Running ? "" : "NOT ";
-  errs() << "BISECT: " << Status << "running pass "
-         << "(" << PassNum << ") " << Name << " on " << "\n";
+  errs() << "BISECT: " << Status << "running pass " << "(" << PassNum << ") "
+         << Name << " on " << "\n";
 }
 
 bool BoltBisect::shouldRunPass(const StringRef PassName) {