197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes/* 297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * Copyright (C) 2010 Google Inc. 397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * 497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * you may not use this file except in compliance with the License. 697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * You may obtain a copy of the License at 797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * 897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * 1097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * Unless required by applicable law or agreed to in writing, software 1197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 1297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * See the License for the specific language governing permissions and 1497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes * limitations under the License. 1597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes */ 1697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 1797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughespackage benchmarks.regression; 1897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 1997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughesimport com.google.caliper.Param; 2097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughesimport com.google.caliper.Runner; 2197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughesimport com.google.caliper.SimpleBenchmark; 2297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 2397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughespublic class FloatBenchmark extends SimpleBenchmark { 2497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes private float f = 1.2f; 2597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes private int i = 1067030938; 2697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 2797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeFloatToIntBits(int reps) { 2897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes int result = 123; 2997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int rep = 0; rep < reps; ++rep) { 3097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes result = Float.floatToIntBits(f); 3197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 3297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes if (result != i) { 3397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes throw new RuntimeException(Integer.toString(result)); 3497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 3597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 3697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 3797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeFloatToRawIntBits(int reps) { 3897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes int result = 123; 3997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int rep = 0; rep < reps; ++rep) { 4097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes result = Float.floatToRawIntBits(f); 4197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 4297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes if (result != i) { 4397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes throw new RuntimeException(Integer.toString(result)); 4497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 4597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 4697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes 4797aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes public void timeIntBitsToFloat(int reps) { 4897aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes float result = 123.0f; 4997aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes for (int rep = 0; rep < reps; ++rep) { 5097aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes result = Float.intBitsToFloat(i); 5197aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 5297aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes if (result != f) { 5397aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes throw new RuntimeException(Float.toString(result) + " " + Float.floatToRawIntBits(result)); 5497aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 5597aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes } 5697aba27f961a5a6f37dcaf7f455df371e250ede3Elliott Hughes} 57