| // Copyright (c) 2021, 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.classmerging; |
| |
| import com.android.tools.r8.KeepConstantArguments; |
| import com.android.tools.r8.NeverClassInline; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NeverPropagateValue; |
| 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; |
| |
| @RunWith(Parameterized.class) |
| public class StatefulSingletonClassesMergingTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public StatefulSingletonClassesMergingTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .addHorizontallyMergedClassesInspector( |
| inspector -> inspector.assertIsCompleteMergeGroup(A.class, B.class)) |
| .enableConstantArgumentAnnotations() |
| .enableInliningAnnotations() |
| .enableMemberValuePropagationAnnotations() |
| .enableNeverClassInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("A", "B"); |
| } |
| |
| static class Main { |
| public static void main(String[] args) { |
| A.INSTANCE.f(); |
| B.INSTANCE.g(); |
| } |
| } |
| |
| @NeverClassInline |
| static class A { |
| |
| static final A INSTANCE = new A("A"); |
| |
| @NeverPropagateValue private final String data; |
| |
| // TODO(b/198758663): With argument propagation the constructors end up not being equivalent, |
| // which prevents merging in the final round of horizontal class merging. |
| @KeepConstantArguments |
| A(String data) { |
| this.data = data; |
| } |
| |
| @NeverInline |
| void f() { |
| System.out.println(data); |
| } |
| } |
| |
| @NeverClassInline |
| static class B { |
| |
| static final B INSTANCE = new B("B"); |
| |
| @NeverPropagateValue private final String data; |
| |
| // TODO(b/198758663): With argument propagation the constructors end up not being equivalent, |
| // which prevents merging in the final round of horizontal class merging. |
| @KeepConstantArguments |
| B(String data) { |
| this.data = data; |
| } |
| |
| @NeverInline |
| void g() { |
| System.out.println(data); |
| } |
| } |
| } |