1//===- CountVisits.cpp ----------------------------------------------------===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8 9#include "llvm/Transforms/Utils/CountVisits.h" 10#include "llvm/ADT/Statistic.h" 11#include "llvm/IR/PassManager.h" 12 13using namespace llvm; 14 15#define DEBUG_TYPE "count-visits" 16 17STATISTIC(MaxVisited, "Max number of times we visited a function"); 18 19PreservedAnalyses CountVisitsPass::run(Function &F, FunctionAnalysisManager &) { 20 uint32_t Count = Counts[F.getName()] + 1; 21 Counts[F.getName()] = Count; 22 if (Count > MaxVisited) 23 MaxVisited = Count; 24 return PreservedAnalyses::all(); 25} 26