src/test/java/com/android/tools/r8/regress/B342067836Test.java

// Copyright (c) 2024, 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.regress;

import static org.junit.Assume.assumeTrue;

import com.android.tools.r8.TestBase;
import com.android.tools.r8.TestParameters;
import com.android.tools.r8.TestParametersCollection;
import com.google.common.collect.ImmutableList;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameter;
import org.junit.runners.Parameterized.Parameters;

@RunWith(Parameterized.class)
public class B342067836Test extends TestBase {

  @Parameter(0)
  public TestParameters parameters;

  @Parameters(name = "{0}")
  public static TestParametersCollection data() {
    return getTestParameters().withAllRuntimesAndApiLevels().build();
  }

  private static final List<String> EXPECTED_OUTPUT = ImmutableList.of("50");

  @Test
  public void testJvm() throws Exception {
    assumeTrue(parameters.isJvmTestParameters());
    testForJvm(parameters)
        .addInnerClasses(getClass())
        .run(parameters.getRuntime(), TestClass.class)
        .assertSuccessWithOutputLines(EXPECTED_OUTPUT);
  }

  @Test
  public void testD8() throws Exception {
    parameters.assumeDexRuntime();
    testForD8(parameters.getBackend())
        .addInnerClasses(getClass())
        .setMinApi(parameters)
        .run(parameters.getRuntime(), TestClass.class)
        .assertSuccessWithOutputLines(EXPECTED_OUTPUT);
  }

  @Test
  public void testR8() throws Exception {
    testForR8(parameters.getBackend())
        .addInnerClasses(getClass())
        .addKeepMainRule(TestClass.class)
        .setMinApi(parameters)
        .run(parameters.getRuntime(), TestClass.class)
        .assertSuccessWithOutputLines(EXPECTED_OUTPUT);
  }

  static class TestClass {

    long a;
    long b;

    void c() {
      double d;
      int i6 = 1;
      d = a += i6;
      a <<= -10;
      a <<= 37;
      b += d;
    }

    void e(float g) {
      c();
    }

    void h(float f, int i, int j) {
      e(f);
    }

    void k(String[] l) {
      for (int n = 0; n < 50; n++) {
        h(6, 7, 4);
      }
      System.out.println(b);
    }

    public static void main(String[] o) {
      TestClass _instance = new TestClass();
      _instance.k(o);
    }
  }
}