1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "benchmark.h" 18 19 #include <math.h> 20 21 // Avoid optimization. 22 double d; 23 double v; 24 25 static void BM_math_sqrt(int iters) { 26 StartBenchmarkTiming(); 27 28 d = 0.0; 29 v = 2.0; 30 for (int i = 0; i < iters; ++i) { 31 d += sqrt(v); 32 } 33 34 StopBenchmarkTiming(); 35 } 36 BENCHMARK(BM_math_sqrt); 37 38 static void BM_math_log10(int iters) { 39 StartBenchmarkTiming(); 40 41 d = 0.0; 42 v = 1234.0; 43 for (int i = 0; i < iters; ++i) { 44 d += log10(v); 45 } 46 47 StopBenchmarkTiming(); 48 } 49 BENCHMARK(BM_math_log10); 50 51 static void BM_math_logb(int iters) { 52 StartBenchmarkTiming(); 53 54 d = 0.0; 55 v = 1234.0; 56 for (int i = 0; i < iters; ++i) { 57 d += logb(v); 58 } 59 60 StopBenchmarkTiming(); 61 } 62 BENCHMARK(BM_math_logb); 63
