| // 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.inliner.sync; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.CoreMatchers.not; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.ir.optimize.inliner.sync.InlineStaticSynchronizedMethodTest.TestClass.RunnableImpl; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import java.lang.Thread.State; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| 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 InlineStaticSynchronizedMethodTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public InlineStaticSynchronizedMethodTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(InlineStaticSynchronizedMethodTest.class) |
| .addKeepMainRule(TestClass.class) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect(this::verifySynchronizedMethodsAreInlined) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutputLines( |
| "t1 START", "m1 ENTER", "t2 START", "m1 EXIT", "m2 ENTER", "m2 EXIT"); |
| } |
| |
| private void verifySynchronizedMethodsAreInlined(CodeInspector inspector) { |
| ClassSubject classSubject = inspector.clazz(RunnableImpl.class); |
| assertThat(classSubject, isPresent()); |
| assertThat(classSubject.uniqueMethodWithName("m1"), not(isPresent())); |
| assertThat(classSubject.uniqueMethodWithName("m2"), not(isPresent())); |
| } |
| |
| static class TestClass { |
| |
| private static List<String> logs = Collections.synchronizedList(new ArrayList<>()); |
| |
| private static volatile Thread t1 = new Thread(new RunnableImpl(1)); |
| private static volatile Thread t2 = new Thread(new RunnableImpl(2)); |
| |
| public static void main(String[] args) { |
| System.out.println("t1 START"); |
| t1.start(); |
| waitUntil(() -> logs.contains("m1 ENTER")); |
| System.out.println("t2 START"); |
| t2.start(); |
| } |
| |
| static void log(String message) { |
| System.out.println(message); |
| logs.add(message); |
| } |
| |
| static void waitUntil(BooleanSupplier condition) { |
| while (!condition.getAsBoolean()) { |
| try { |
| Thread.sleep(50); |
| } catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| |
| static class RunnableImpl implements Runnable { |
| |
| int which; |
| |
| RunnableImpl(int which) { |
| this.which = which; |
| } |
| |
| @Override |
| public void run() { |
| if (which == 1) { |
| m1(); |
| } else { |
| m2(); |
| } |
| } |
| |
| static synchronized void m1() { |
| log("m1 ENTER"); |
| // Intentionally not using a lambda, since we do not allow inlining of methods with an |
| // invoke-custom instruction. (This only makes a difference for the CF backend.) |
| waitUntil( |
| new BooleanSupplier() { |
| |
| @Override |
| public boolean getAsBoolean() { |
| return t2.getState() == State.BLOCKED; |
| } |
| }); |
| log("m1 EXIT"); |
| } |
| |
| static synchronized void m2() { |
| log("m2 ENTER"); |
| log("m2 EXIT"); |
| } |
| } |
| } |
| |
| interface BooleanSupplier { |
| |
| boolean getAsBoolean(); |
| } |
| } |