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/Function.h"
12#include "llvm/IR/PassManager.h"
13
14using namespace llvm;
15
16#define DEBUG_TYPE "count-visits"
17
18STATISTIC(MaxVisited, "Max number of times we visited a function");
19
20PreservedAnalyses CountVisitsPass::run(Function &F, FunctionAnalysisManager &) {
21 uint32_t Count = Counts[F.getName()] + 1;
22 Counts[F.getName()] = Count;
23 if (Count > MaxVisited)
24 MaxVisited = Count;
25 return PreservedAnalyses::all();
26}
27