| // 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.callsites.dynamicupperboundtype; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| |
| 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.graph.ProgramMethod; |
| import com.android.tools.r8.ir.analysis.type.TypeElement; |
| import com.android.tools.r8.ir.optimize.info.CallSiteOptimizationInfo; |
| 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; |
| |
| @RunWith(Parameterized.class) |
| public class InvokeStaticNegativeTest extends TestBase { |
| private static final Class<?> MAIN = Main.class; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| private final TestParameters parameters; |
| |
| public InvokeStaticNegativeTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(InvokeStaticNegativeTest.class) |
| .addKeepMainRule(MAIN) |
| .enableInliningAnnotations() |
| .addOptionsModification(o -> { |
| o.testing.callSiteOptimizationInfoInspector = this::callSiteOptimizationInfoInspect; |
| }) |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), MAIN) |
| .assertSuccessWithOutputLines("Sub1", "Sub2") |
| .inspect(this::inspect); |
| } |
| |
| private void callSiteOptimizationInfoInspect(ProgramMethod method) { |
| assert method.getReference().name.toString().equals("test") |
| : "Unexpected revisit: " + method.toSourceString(); |
| CallSiteOptimizationInfo callSiteOptimizationInfo = |
| method.getDefinition().getCallSiteOptimizationInfo(); |
| TypeElement upperBoundType = callSiteOptimizationInfo.getDynamicUpperBoundType(0); |
| assert upperBoundType.isDefinitelyNotNull(); |
| assert upperBoundType.isClassType() |
| && upperBoundType.asClassType().getClassType().toSourceString().endsWith("$Base"); |
| } |
| |
| private void inspect(CodeInspector inspector) { |
| ClassSubject main = inspector.clazz(MAIN); |
| assertThat(main, isPresent()); |
| |
| MethodSubject test = main.uniqueMethodWithName("test"); |
| assertThat(test, isPresent()); |
| |
| // Should not optimize branches since the type of `arg` is unsure. |
| assertTrue(test.streamInstructions().anyMatch(InstructionSubject::isIf)); |
| |
| // Should not optimize away Sub1, since it's still referred/instantiated. |
| ClassSubject sub1 = inspector.clazz(Sub1.class); |
| assertThat(sub1, isPresent()); |
| |
| // Should not optimize away Sub2, since it's still referred/instantiated. |
| ClassSubject sub2 = inspector.clazz(Sub2.class); |
| assertThat(sub2, isPresent()); |
| } |
| |
| static class Base {} |
| static class Sub1 extends Base {} |
| static class Sub2 extends Base {} |
| |
| static class Main { |
| public static void main(String... args) { |
| test(new Sub1()); // calls test with Sub1. |
| test(new Sub2()); // calls test with Sub2. |
| } |
| |
| @NeverInline |
| static void test(Base arg) { |
| if (arg instanceof Sub1) { |
| System.out.println("Sub1"); |
| } else if (arg instanceof Sub2) { |
| System.out.println("Sub2"); |
| } |
| } |
| } |
| } |