| // 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.ir.optimize.ifs; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import com.android.tools.r8.AlwaysInline; |
| 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.CodeInspector; |
| import com.android.tools.r8.utils.codeinspector.FoundMethodSubject; |
| import com.android.tools.r8.utils.codeinspector.InstructionSubject; |
| 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 DoubleDiamondCstTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public DoubleDiamondCstTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .enableInliningAnnotations() |
| .enableAlwaysInliningAnnotations() |
| .setMinApi(parameters) |
| .compile() |
| .inspect(this::inspect) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines( |
| "1", "5", "5", "1", "1", "5", "5", "1", "5", "5", "1", "1", "1", "5"); |
| } |
| |
| private void inspect(CodeInspector inspector) { |
| for (FoundMethodSubject method : inspector.clazz(Main.class).allMethods()) { |
| if (!method.getOriginalMethodName().equals("main")) { |
| long count = method.streamInstructions().filter(InstructionSubject::isIf).count(); |
| assertEquals(method.getOriginalMethodName().contains("Double") ? 2 : 1, count); |
| } |
| } |
| } |
| |
| public static class Main { |
| |
| public static void main(String[] args) { |
| System.out.println(indirectTest(2, 6)); |
| System.out.println(indirectTest(3, 3)); |
| |
| System.out.println(indirectTestNegated(2, 6)); |
| System.out.println(indirectTestNegated(3, 3)); |
| |
| System.out.println(indirectCmp(2, 6)); |
| System.out.println(indirectCmp(7, 3)); |
| |
| System.out.println(indirectCmpNegated(2, 6)); |
| System.out.println(indirectCmpNegated(7, 3)); |
| |
| System.out.println(indirectDoubleTest(2, 6, 6)); |
| System.out.println(indirectDoubleTest(7, 7, 3)); |
| System.out.println(indirectDoubleTest(1, 1, 1)); |
| |
| System.out.println(indirectDoubleTestNegated(2, 6, 6)); |
| System.out.println(indirectDoubleTestNegated(2, 2, 6)); |
| System.out.println(indirectDoubleTestNegated(7, 7, 7)); |
| } |
| |
| @AlwaysInline |
| public static int doubleTest(int i, int j, int k) { |
| if (i != j) { |
| return 1; |
| } |
| if (j == k) { |
| return 2; |
| } |
| return 3; |
| } |
| |
| @NeverInline |
| public static int indirectDoubleTest(int i, int j, int k) { |
| if (doubleTest(i, j, k) == 2) { |
| return 1; |
| } else { |
| return 5; |
| } |
| } |
| |
| @NeverInline |
| public static int indirectDoubleTestNegated(int i, int j, int k) { |
| if (doubleTest(i, j, k) != 2) { |
| return 1; |
| } else { |
| return 5; |
| } |
| } |
| |
| @AlwaysInline |
| public static int test(int i, int j) { |
| return i == j ? 1 : 2; |
| } |
| |
| @NeverInline |
| public static int indirectTest(int i, int j) { |
| if (test(i, j) == 2) { |
| return 1; |
| } else { |
| return 5; |
| } |
| } |
| |
| @NeverInline |
| public static int indirectTestNegated(int i, int j) { |
| if (test(i, j) != 2) { |
| return 1; |
| } else { |
| return 5; |
| } |
| } |
| |
| @AlwaysInline |
| public static int cmp(int i, int j) { |
| return i <= j ? 1 : 2; |
| } |
| |
| @NeverInline |
| public static int indirectCmp(int i, int j) { |
| if (cmp(i, j) < 2) { |
| return 1; |
| } else { |
| return 5; |
| } |
| } |
| |
| @NeverInline |
| public static int indirectCmpNegated(int i, int j) { |
| if (cmp(i, j) > 1) { |
| return 1; |
| } else { |
| return 5; |
| } |
| } |
| } |
| } |