Reproduce limitation of member value propagation
Bug: 135918413
Change-Id: I8652650e29fe16776480b8dcbd90cb241377c677
diff --git a/src/test/java/com/android/tools/r8/ir/optimize/membervaluepropagation/B135918413.java b/src/test/java/com/android/tools/r8/ir/optimize/membervaluepropagation/B135918413.java
new file mode 100644
index 0000000..c05847c
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/ir/optimize/membervaluepropagation/B135918413.java
@@ -0,0 +1,93 @@
+// 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.membervaluepropagation;
+
+import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.Assert.assertFalse;
+
+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.InstructionSubject;
+import com.android.tools.r8.utils.codeinspector.MethodSubject;
+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 B135918413 extends TestBase {
+
+ private final TestParameters parameters;
+
+ @Parameters(name = "{0}")
+ public static TestParametersCollection data() {
+ return getTestParameters().withAllRuntimes().build();
+ }
+
+ public B135918413(TestParameters parameters) {
+ this.parameters = parameters;
+ }
+
+ @Test
+ public void test() throws Exception {
+ testForR8(parameters.getBackend())
+ .addInnerClasses(B135918413.class)
+ .addKeepMainRule(TestClass.class)
+ .enableInliningAnnotations()
+ .setMinApi(parameters.getRuntime())
+ .compile()
+ .inspect(this::inspect)
+ .run(parameters.getRuntime(), TestClass.class)
+ .assertSuccessWithOutputLines("Hello world!");
+ }
+
+ private void inspect(CodeInspector inspector) {
+ ClassSubject classSubject = inspector.clazz(TestClass.class);
+ assertThat(classSubject, isPresent());
+
+ MethodSubject mainMethodSubject = classSubject.mainMethod();
+ assertThat(mainMethodSubject, isPresent());
+ // TODO(b/135918413): Should be true.
+ assertFalse(
+ mainMethodSubject
+ .streamInstructions()
+ .filter(InstructionSubject::isStaticGet)
+ .allMatch(instruction -> instruction.getField().name.toSourceString().equals("out")));
+
+ MethodSubject deadMethodSubject = classSubject.uniqueMethodWithName("dead");
+ // TODO(b/135918413): Should be absent.
+ assertThat(deadMethodSubject, isPresent());
+ }
+
+ static class TestClass {
+
+ public static void main(String[] args) {
+ if (Config.alwaysTrue) {
+ System.out.print("Hello");
+ } else {
+ dead();
+ }
+ if (Config.alwaysEmpty.length == 0) {
+ System.out.println(" world!");
+ }
+ }
+
+ @NeverInline
+ static void dead() {
+ System.out.println("Unexpected");
+ }
+ }
+
+ static class Config {
+
+ public static boolean alwaysTrue = true;
+ public static String[] alwaysEmpty = {};
+ }
+}
