1*06c3fb27SDimitry Andric //===- CountVisits.cpp ----------------------------------------------------===// 2*06c3fb27SDimitry Andric // 3*06c3fb27SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*06c3fb27SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*06c3fb27SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*06c3fb27SDimitry Andric // 7*06c3fb27SDimitry Andric //===----------------------------------------------------------------------===// 8*06c3fb27SDimitry Andric 9*06c3fb27SDimitry Andric #include "llvm/Transforms/Utils/CountVisits.h" 10*06c3fb27SDimitry Andric #include "llvm/ADT/Statistic.h" 11*06c3fb27SDimitry Andric #include "llvm/IR/PassManager.h" 12*06c3fb27SDimitry Andric 13*06c3fb27SDimitry Andric using namespace llvm; 14*06c3fb27SDimitry Andric 15*06c3fb27SDimitry Andric #define DEBUG_TYPE "count-visits" 16*06c3fb27SDimitry Andric 17*06c3fb27SDimitry Andric STATISTIC(MaxVisited, "Max number of times we visited a function"); 18*06c3fb27SDimitry Andric 19*06c3fb27SDimitry Andric PreservedAnalyses CountVisitsPass::run(Function &F, FunctionAnalysisManager &) { 20*06c3fb27SDimitry Andric uint32_t Count = Counts[F.getName()] + 1; 21*06c3fb27SDimitry Andric Counts[F.getName()] = Count; 22*06c3fb27SDimitry Andric if (Count > MaxVisited) 23*06c3fb27SDimitry Andric MaxVisited = Count; 24*06c3fb27SDimitry Andric return PreservedAnalyses::all(); 25*06c3fb27SDimitry Andric } 26