bolt/deps/llvm-18.1.8/llvm/lib/Transforms/Utils/CountVisits.cpp

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//===- CountVisits.cpp ----------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "llvm/Transforms/Utils/CountVisits.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/IR/PassManager.h"
using namespace llvm;
#define DEBUG_TYPE "count-visits"
STATISTIC(MaxVisited, "Max number of times we visited a function");
PreservedAnalyses CountVisitsPass::run(Function &F, FunctionAnalysisManager &) {
uint32_t Count = Counts[F.getName()] + 1;
Counts[F.getName()] = Count;
if (Count > MaxVisited)
MaxVisited = Count;
return PreservedAnalyses::all();
}