| // 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.nonnull; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| |
| 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 com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.MethodSubject; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class B141654799 extends TestBase { |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimes().build(); |
| } |
| |
| public B141654799(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(B141654799.class) |
| .enableInliningAnnotations() |
| .addKeepMainRule(TestClass.class) |
| .setMinApi(parameters.getRuntime()) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutputLines("The end") |
| .inspect(inspector -> { |
| ClassSubject main = inspector.clazz(TestClass.class); |
| assertThat(main, isPresent()); |
| MethodSubject mainMethod = main.mainMethod(); |
| assertThat(mainMethod, isPresent()); |
| assertTrue(mainMethod.streamInstructions().noneMatch(i -> i.isIfEqz() || i.isIfNez())); |
| }); |
| } |
| |
| static class TestClass { |
| public static void main(String... args) { |
| TestClass x = null; |
| if (System.currentTimeMillis() > 0) { |
| TestClass y = (TestClass) returnsNull(); |
| if (y != null) { |
| x = y; |
| } |
| } |
| if (x != null) { |
| System.out.println("Dead code: " + x.toString()); |
| } |
| System.out.println("The end"); |
| } |
| |
| @NeverInline |
| static Object returnsNull() { |
| return null; |
| } |
| } |
| } |