| 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 | |
| 13 | using namespace llvm; |
| 14 | |
| 15 | #define DEBUG_TYPE "count-visits" |
| 16 | |
| 17 | STATISTIC(MaxVisited, "Max number of times we visited a function"); |
| 18 | |
| 19 | PreservedAnalyses 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 |