| // 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.NeverClassInline; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NoVerticalClassMerging; |
| 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 InvokeDirectPositiveTest 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 InvokeDirectPositiveTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(InvokeDirectPositiveTest.class) |
| .addKeepMainRule(MAIN) |
| .enableNoVerticalClassMergingAnnotations() |
| .enableNeverClassInliningAnnotations() |
| .enableInliningAnnotations() |
| .addOptionsModification( |
| o -> { |
| o.testing.callSiteOptimizationInfoInspector = this::callSiteOptimizationInfoInspect; |
| }) |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), MAIN) |
| .assertSuccessWithOutputLines("Sub1") |
| .inspect(this::inspect); |
| } |
| |
| private void callSiteOptimizationInfoInspect(ProgramMethod method) { |
| String methodName = method.getReference().name.toString(); |
| assert methodName.equals("<init>") || methodName.equals("test") |
| : "Unexpected revisit: " + method.toSourceString(); |
| CallSiteOptimizationInfo callSiteOptimizationInfo = |
| method.getDefinition().getCallSiteOptimizationInfo(); |
| TypeElement upperBoundType; |
| if (methodName.equals("test")) { |
| upperBoundType = callSiteOptimizationInfo.getDynamicUpperBoundType(1); |
| } else { |
| // TODO(b/139246447): should avoid visiting <init>, which is trivial, default init! |
| // For testing purpose, `Base` is not merged and kept. The system correctly caught that, when |
| // the default initializer is invoked, the receiver had a refined type, `Sub1`. |
| upperBoundType = callSiteOptimizationInfo.getDynamicUpperBoundType(0); |
| } |
| assert upperBoundType.isDefinitelyNotNull(); |
| assert upperBoundType.isClassType() |
| && upperBoundType.asClassType().getClassType().toSourceString().endsWith("$Sub1"); |
| } |
| |
| private void inspect(CodeInspector inspector) { |
| ClassSubject main = inspector.clazz(MAIN); |
| assertThat(main, isPresent()); |
| |
| MethodSubject test = main.uniqueMethodWithName("test"); |
| assertThat(test, isPresent()); |
| // Can optimize branches since the type of `arg` is Sub1. |
| assertTrue(test.streamInstructions().noneMatch(InstructionSubject::isIf)); |
| } |
| |
| @NoVerticalClassMerging |
| static class Base {} |
| |
| static class Sub1 extends Base {} |
| static class Sub2 extends Base {} |
| |
| @NeverClassInline |
| static class Main { |
| public static void main(String... args) { |
| Main obj = new Main(); |
| obj.test(new Sub1()); // calls test with Sub1. |
| } |
| |
| @NeverInline |
| private void test(Base arg) { |
| if (arg instanceof Sub1) { |
| System.out.println("Sub1"); |
| } else if (arg instanceof Sub2) { |
| System.out.println("Sub2"); |
| } |
| } |
| } |
| } |