| // 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.ir.optimize.fields; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.android.tools.r8.NeverClassInline; |
| 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.FoundMethodSubject; |
| 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 SwitchOnNonConstantClassIdAfterBranchPruningTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public SwitchOnNonConstantClassIdAfterBranchPruningTest(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, C.class)) |
| .enableNeverClassInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .noMinification() |
| .compile() |
| .inspect( |
| inspector -> { |
| ClassSubject aClassSubject = inspector.clazz(A.class); |
| assertThat(aClassSubject, isPresent()); |
| assertEquals(1, aClassSubject.allInstanceFields().size()); |
| |
| MethodSubject mMethodSubject = |
| aClassSubject.uniqueMethodThatMatches(FoundMethodSubject::isVirtual); |
| assertThat(mMethodSubject, isPresent()); |
| assertTrue( |
| mMethodSubject |
| .streamInstructions() |
| .noneMatch(instruction -> instruction.isConstString("C"))); |
| }) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("A", "B"); |
| } |
| |
| static class Main { |
| |
| public static void main(String[] args) { |
| new A().m(); |
| new B().m(); |
| if (alwaysFalse()) { |
| new C().m(); |
| } |
| } |
| |
| static boolean alwaysFalse() { |
| return false; |
| } |
| } |
| |
| @NeverClassInline |
| static class A { |
| |
| void m() { |
| System.out.println("A"); |
| } |
| } |
| |
| @NeverClassInline |
| static class B { |
| |
| void m() { |
| System.out.println("B"); |
| } |
| } |
| |
| @NeverClassInline |
| static class C { |
| |
| void m() { |
| System.out.println("C"); |
| } |
| } |
| } |