| // 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.desugar.staticinterfacemethod; |
| |
| 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 org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameter; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| /** Reproduction for b/196496374. */ |
| @RunWith(Parameterized.class) |
| public class InlineIntoReprocessedStaticInterfaceMethodTest extends TestBase { |
| |
| @Parameter(0) |
| public TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection parameters() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .enableInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("A"); |
| } |
| |
| static class Main { |
| |
| // Field where all writes are removed by the primary optimization pass. All methods that read |
| // this field will therefore be enqueued for reprocessing in the second optimization pass. |
| public static boolean neverWritten; |
| |
| public static void main(String[] args) { |
| if (getFalse()) { |
| neverWritten = args.length > 0; |
| } |
| I.method(); |
| } |
| |
| static boolean getFalse() { |
| return false; |
| } |
| } |
| |
| static class A { |
| |
| static void greet() { |
| System.out.println("A"); |
| } |
| } |
| |
| interface I { |
| |
| // Since this method is moved to I's companion class during the primary optimization pass, we |
| // will process the companion method in the second optimization pass, since the body references |
| // the `neverWritten` field. |
| @NeverInline |
| static void method() { |
| if (Main.neverWritten) { |
| // This will be inlined. When building IR for this method in the second optimization pass, |
| // we assert that the outermost caller position is the original signature of the enclosing |
| // method. This only holds if we have correctly recorded that the original signature of the |
| // companion method I$-CC.method() is I.method(). |
| System.out.println("Dead..."); |
| } |
| A.greet(); |
| } |
| } |
| } |