| // 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.optimize.membervaluepropagation; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.CoreMatchers.not; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assume.assumeTrue; |
| |
| 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 B138912149 extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimes().build(); |
| } |
| |
| public B138912149(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(B138912149.class) |
| .addKeepMainRule(TestClass.class) |
| .setMinApi(parameters.getRuntime()) |
| .noMinification() |
| .compile() |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutputLines("The end") |
| .inspect(codeInspector -> { |
| // All <clinit>s are simplified and shrunk. |
| codeInspector.forAllClasses(classSubject -> { |
| assertThat(classSubject.clinit(), not(isPresent())); |
| }); |
| }); |
| } |
| |
| @Test |
| public void testJvm() throws Exception { |
| assumeTrue(parameters.isCfRuntime()); |
| testForJvm() |
| .addTestClasspath() |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutputLines("The end"); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String... args) { |
| if (A.alwaysFalse) { |
| System.out.println("Dead code 1"); |
| } |
| if (B.alwaysFalse || !B.alwaysTrue) { |
| System.out.println("Dead code 2"); |
| } |
| if (C.alwaysNull != null) { |
| System.out.println("Dead code 3"); |
| } |
| if (!N.name.endsWith("N")) { |
| System.out.println("Dead code: " + N.name); |
| } |
| System.out.println("The end"); |
| } |
| } |
| |
| static class A { |
| static boolean alwaysFalse; |
| |
| static { |
| alwaysFalse = false; |
| } |
| } |
| |
| static class B extends A { |
| static boolean alwaysTrue; |
| |
| static { |
| alwaysTrue = alwaysFalse; |
| // Either keep this static-put or remove both static-put's and put `true` to `alwaysTrue`. |
| alwaysTrue = true; |
| } |
| } |
| |
| static class C { |
| static Object alwaysNull; |
| |
| static { |
| alwaysNull = C.class; |
| // Either keep this static-put or remove both static-put's and put `null` to `alwaysNull`. |
| alwaysNull = null; |
| } |
| } |
| |
| static class N { |
| static String name; |
| |
| static { |
| name = "dummy"; |
| // Either keep this static-put or remove both static-put's and put the name, ...$N, to `name`. |
| name = N.class.getName(); |
| // Note that we can't use other kinds of names, e.g., simple name, because the enclosing class |
| // is not provided as a program class, hence all attributes related to inner-name computation |
| // is gone in this test setting. |
| } |
| } |
| } |