1 /* 2 * Copyright (C) 2010 Google Inc. 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 package benchmarks.regression; 18 19 import com.google.caliper.Param; 20 import com.google.caliper.Runner; 21 import com.google.caliper.SimpleBenchmark; 22 23 public class FloatBenchmark extends SimpleBenchmark { 24 private float f = 1.2f; 25 private int i = 1067030938; 26 27 public void timeFloatToIntBits(int reps) { 28 int result = 123; 29 for (int rep = 0; rep < reps; ++rep) { 30 result = Float.floatToIntBits(f); 31 } 32 if (result != i) { 33 throw new RuntimeException(Integer.toString(result)); 34 } 35 } 36 37 public void timeFloatToRawIntBits(int reps) { 38 int result = 123; 39 for (int rep = 0; rep < reps; ++rep) { 40 result = Float.floatToRawIntBits(f); 41 } 42 if (result != i) { 43 throw new RuntimeException(Integer.toString(result)); 44 } 45 } 46 47 public void timeIntBitsToFloat(int reps) { 48 float result = 123.0f; 49 for (int rep = 0; rep < reps; ++rep) { 50 result = Float.intBitsToFloat(i); 51 } 52 if (result != f) { 53 throw new RuntimeException(Float.toString(result) + " " + Float.floatToRawIntBits(result)); 54 } 55 } 56 } 57
