[llvm] [BOLT] Flow conservation scores (PR #127954)

[via llvm-commits]

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@@ -0,0 +1,579 @@
+//===- bolt/Passes/ProfileQualityStats.cpp ----------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the profile quality stats calculation pass.
+//
+//===----------------------------------------------------------------------===//
+
+#include "bolt/Passes/ProfileQualityStats.h"
+#include "bolt/Core/BinaryBasicBlock.h"
+#include "bolt/Core/BinaryFunction.h"
+#include "bolt/Utils/CommandLineOpts.h"
+#include "llvm/Support/CommandLine.h"
+#include <queue>
+#include <unordered_map>
+#include <unordered_set>
+
+#define DEBUG_TYPE "bolt-opts"
+
+using namespace llvm;
+using namespace bolt;
+
+namespace opts {
+extern cl::opt<unsigned> Verbosity;
+cl::opt<unsigned> NumFunctionsForProfileQualityCheck(
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ShatianWang wrote:

Did you mean to change `NumFunctionsForProfileQualityCheck` to something like `NumTopFunctionsForProfileQualityCheck` to make it more descriptive?

https://github.com/llvm/llvm-project/pull/127954