| // Copyright (c) 2023, 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.numberunboxing; |
| |
| 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.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import com.android.tools.r8.utils.codeinspector.MethodSubject; |
| import java.util.Objects; |
| 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 StaticMethodsWideUnboxingNumberUnboxingTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public StaticMethodsWideUnboxingNumberUnboxingTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testNumberUnboxing() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .enableInliningAnnotations() |
| .addOptionsModification(opt -> opt.testing.enableNumberUnboxer = true) |
| .setMinApi(parameters) |
| .compile() |
| .inspect(this::assertUnboxing) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("32", "33", "42", "43", "52", "53", "2"); |
| } |
| |
| private void assertSecondParameterUnboxed(ClassSubject mainClass, String methodName) { |
| MethodSubject methodSubject = mainClass.uniqueMethodWithOriginalName(methodName); |
| assertThat(methodSubject, isPresent()); |
| assertTrue(methodSubject.getProgramMethod().getParameter(1).isLongType()); |
| } |
| |
| private void assertSecondParameterBoxed(ClassSubject mainClass, String methodName) { |
| MethodSubject methodSubject = mainClass.uniqueMethodWithOriginalName(methodName); |
| assertThat(methodSubject, isPresent()); |
| assertTrue(methodSubject.getProgramMethod().getParameter(1).isReferenceType()); |
| } |
| |
| private void assertReturnUnboxed(ClassSubject mainClass, String methodName) { |
| MethodSubject methodSubject = mainClass.uniqueMethodWithOriginalName(methodName); |
| assertThat(methodSubject, isPresent()); |
| assertTrue(methodSubject.getProgramMethod().getReturnType().isLongType()); |
| } |
| |
| private void assertUnboxing(CodeInspector codeInspector) { |
| ClassSubject mainClass = codeInspector.clazz(Main.class); |
| assertThat(mainClass, isPresent()); |
| |
| assertSecondParameterUnboxed(mainClass, "print"); |
| assertSecondParameterUnboxed(mainClass, "forwardToPrint2"); |
| assertSecondParameterUnboxed(mainClass, "directPrintUnbox"); |
| assertSecondParameterUnboxed(mainClass, "forwardToPrint"); |
| |
| assertReturnUnboxed(mainClass, "get"); |
| assertReturnUnboxed(mainClass, "forwardGet"); |
| |
| assertSecondParameterBoxed(mainClass, "directPrintNotUnbox"); |
| } |
| |
| static class Main { |
| |
| public static void main(String[] args) { |
| long shift = System.currentTimeMillis() > 0 ? 1L : 0L; |
| |
| // The number unboxer should immediately find this method is worth unboxing. |
| directPrintUnbox(shift, 31L); |
| directPrintUnbox(shift, 32L); |
| |
| // The number unboxer should find the chain of calls is worth unboxing. |
| forwardToPrint(shift, 41L); |
| forwardToPrint(shift, 42L); |
| |
| // The number unboxer should find this method is *not* worth unboxing. |
| Long decode1 = Long.decode("51"); |
| Objects.requireNonNull(decode1); |
| directPrintNotUnbox(shift, decode1); |
| Long decode2 = Long.decode("52"); |
| Objects.requireNonNull(decode2); |
| directPrintNotUnbox(shift, decode2); |
| |
| // The number unboxer should unbox the return values. |
| System.out.println(forwardGet() + 1); |
| } |
| |
| @NeverInline |
| private static Long get() { |
| return System.currentTimeMillis() > 0 ? 1L : -1L; |
| } |
| |
| @NeverInline |
| private static Long forwardGet() { |
| return get(); |
| } |
| |
| @NeverInline |
| private static void forwardToPrint(long shift, Long boxed) { |
| forwardToPrint2(shift, boxed); |
| } |
| |
| @NeverInline |
| private static void forwardToPrint2(long shift, Long boxed) { |
| print(shift, boxed); |
| } |
| |
| @NeverInline |
| private static void print(long shift, Long boxed) { |
| System.out.println(boxed + shift); |
| } |
| |
| @NeverInline |
| private static void directPrintUnbox(long shift, Long boxed) { |
| System.out.println(boxed + shift); |
| } |
| |
| @NeverInline |
| private static void directPrintNotUnbox(long shift, Long boxed) { |
| Long newBox = Long.valueOf(boxed + shift); |
| System.out.println(newBox); |
| } |
| } |
| } |