| // Copyright (c) 2020, 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.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertFalse; |
| |
| import com.android.tools.r8.NeverClassInline; |
| 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.CodeInspector; |
| import com.android.tools.r8.utils.codeinspector.InstructionSubject; |
| import com.android.tools.r8.utils.codeinspector.MethodSubject; |
| 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 NonFinalFieldWithNonDefaultValueAssignmentPropagationTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public NonFinalFieldWithNonDefaultValueAssignmentPropagationTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(NonFinalFieldWithNonDefaultValueAssignmentPropagationTest.class) |
| .addKeepMainRule(TestClass.class) |
| .enableNeverClassInliningAnnotations() |
| .enableInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect(this::inspect) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutputLines("Hello world!"); |
| } |
| |
| private void inspect(CodeInspector inspector) { |
| ClassSubject testClassSubject = inspector.clazz(TestClass.class); |
| assertThat(testClassSubject, isPresent()); |
| // TODO(b/147799637): Should be absent. |
| assertThat(testClassSubject.uniqueMethodWithName("dead"), isPresent()); |
| |
| ClassSubject configClassSubject = inspector.clazz(Config.class); |
| assertThat(configClassSubject, isPresent()); |
| |
| MethodSubject configConstructorSubject = configClassSubject.init(); |
| assertThat(configConstructorSubject, isPresent()); |
| // TODO(b/147799637): Should be true. |
| assertFalse( |
| configConstructorSubject.streamInstructions().noneMatch(InstructionSubject::isInstancePut)); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| if (!new Config().alwaysTrue) { |
| dead(); |
| } |
| } |
| |
| @NeverInline |
| static void dead() { |
| System.out.println("Dead!"); |
| } |
| } |
| |
| @NeverClassInline |
| static class Config { |
| |
| boolean alwaysTrue; |
| |
| Config() { |
| // An instruction that cannot read alwaysTrue, because the receiver has not escaped |
| // (except into Object.<init>()). |
| System.out.println("Hello world!"); |
| // Since the receiver has not escaped, we are guaranteed that all reads will evaluate to true. |
| alwaysTrue = true; |
| } |
| } |
| } |