| /* |
| * Copyright (C) 2022 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.libcore.regression; |
| |
| import android.perftests.utils.BenchmarkState; |
| import android.perftests.utils.PerfStatusReporter; |
| import android.test.suitebuilder.annotation.LargeTest; |
| |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| @RunWith(AndroidJUnit4.class) |
| @LargeTest |
| public class DoublePerfTest { |
| @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); |
| |
| private double mD = 1.2; |
| private long mL = 4608083138725491507L; |
| |
| @Test |
| public void timeDoubleToLongBits() { |
| long result = 123; |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| result = Double.doubleToLongBits(mD); |
| } |
| if (result != mL) { |
| throw new RuntimeException(Long.toString(result)); |
| } |
| } |
| |
| @Test |
| public void timeDoubleToRawLongBits() { |
| long result = 123; |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| result = Double.doubleToRawLongBits(mD); |
| } |
| if (result != mL) { |
| throw new RuntimeException(Long.toString(result)); |
| } |
| } |
| |
| @Test |
| public void timeLongBitsToDouble() { |
| double result = 123.0; |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| result = Double.longBitsToDouble(mL); |
| } |
| if (result != mD) { |
| throw new RuntimeException(Double.toString(result) + " " |
| + Double.doubleToRawLongBits(result)); |
| } |
| } |
| } |