| // Copyright (c) 2019, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| package com.android.tools.r8.ir.analysis.sideeffect; |
| |
| import com.android.tools.r8.AssumeNoSideEffects; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class ArrayContentsDependOnEnvironmentTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public ArrayContentsDependOnEnvironmentTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(ArrayContentsDependOnEnvironmentTest.class) |
| .addKeepMainRule(TestClass.class) |
| .enableAssumeNoSideEffectsAnnotations() |
| .enableInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutputLines("42"); |
| } |
| |
| static class TestClass { |
| |
| static int f = 42; |
| |
| public static void main(String[] args) { |
| // Trigger A.<clinit>(), this will set A.values to [42]. |
| A.empty(); |
| // Unset f, such that the below will read -1 if we failed to trigger class initialization. |
| f = -1; |
| // Print 42. |
| System.out.println(A.values[0]); |
| } |
| } |
| |
| static class A { |
| |
| static long[] values = new long[] {getFourtyTwo()}; |
| |
| @AssumeNoSideEffects |
| @NeverInline |
| static long getFourtyTwo() { |
| return TestClass.f; |
| } |
| |
| static void empty() { |
| // Intentionally empty. |
| } |
| } |
| } |