| package com.android.tools.r8.ir.optimize.redundantfieldloadelimination; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| |
| 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.InstructionSubject; |
| import com.android.tools.r8.utils.codeinspector.MethodSubject; |
| import java.io.PrintStream; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class RedundantFieldLoadEliminationMeetTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public RedundantFieldLoadEliminationMeetTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(RedundantFieldLoadEliminationMeetTest.class) |
| .addKeepMainRule(TestClass.class) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect(this::inspect) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutputLines("Hello world!"); |
| } |
| |
| private void inspect(CodeInspector inspector) { |
| ClassSubject testClassSubject = inspector.clazz(TestClass.class); |
| assertThat(testClassSubject, isPresent()); |
| |
| MethodSubject mainMethodSubject = testClassSubject.mainMethod(); |
| assertThat(mainMethodSubject, isPresent()); |
| assertEquals( |
| 1, mainMethodSubject.streamInstructions().filter(InstructionSubject::isStaticGet).count()); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| boolean unknown = System.currentTimeMillis() > 0; |
| PrintStream out = System.out; |
| String message = unknown ? "Hello world!" : "Unexpected"; |
| System.out.println(message); |
| } |
| } |
| } |