1 /* 2 * Copyright (c) Huawei Technologies Co., Ltd. 2020-2024. All rights reserved. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #include "util.h" 16 #include <exception> 17 #include <cassert> 18 19 using namespace std; 20 21 static int gThrowExceptionCnt = 0; 22 static int gCatchExceptionCnt = 0; 23 24 struct TestException : public exception { TestExceptionTestException25 TestException() 26 { 27 gThrowExceptionCnt++; 28 } whatTestException29 const char* what() const _NOEXCEPT override 30 { 31 return "Test Exception!"; 32 } 33 check_resultTestException34 void check_result() 35 { 36 gCatchExceptionCnt++; 37 } 38 }; 39 40 // increase call stack depth ThrowExceptionCallStub()41void __attribute__((noinline)) ThrowExceptionCallStub() 42 { 43 throw TestException(); 44 } 45 46 // increase call stack depth TopCallStub()47void __attribute__((noinline)) TopCallStub() 48 { 49 ThrowExceptionCallStub(); 50 } 51 Bm_function_throw_exception(benchmark::State & state)52static void Bm_function_throw_exception(benchmark::State &state) 53 { 54 int ret; 55 for (auto _ : state) { 56 try { 57 TopCallStub(); 58 } catch (TestException& e) { 59 e.check_result(); 60 ret = gThrowExceptionCnt; 61 } 62 benchmark::DoNotOptimize(ret); 63 } 64 } 65 66 MUSL_BENCHMARK(Bm_function_throw_exception); 67