Reproduce class merger bug leading to StackOverflowError
Bug: 133501933
Change-Id: I44a34d4936a1e47e5bb7346c9a5873237036718e
diff --git a/src/test/java/com/android/tools/r8/classmerging/IncorrectRewritingOfInvokeSuperTest.java b/src/test/java/com/android/tools/r8/classmerging/IncorrectRewritingOfInvokeSuperTest.java
new file mode 100644
index 0000000..d4b045d
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/classmerging/IncorrectRewritingOfInvokeSuperTest.java
@@ -0,0 +1,82 @@
+// 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.classmerging;
+
+import static org.hamcrest.core.StringContains.containsString;
+
+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 org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+/** Regression test for b/133501933. */
+@RunWith(Parameterized.class)
+public class IncorrectRewritingOfInvokeSuperTest extends TestBase {
+
+ private final TestParameters parameters;
+
+ @Parameters(name = "{0}")
+ public static TestParametersCollection data() {
+ return getTestParameters().withAllRuntimes().build();
+ }
+
+ public IncorrectRewritingOfInvokeSuperTest(TestParameters parameters) {
+ this.parameters = parameters;
+ }
+
+ @Test
+ public void test() throws Exception {
+ testForR8(parameters.getBackend())
+ .addInnerClasses(IncorrectRewritingOfInvokeSuperTest.class)
+ .addKeepMainRule(TestClass.class)
+ .addOptionsModification(options -> options.enableUnusedInterfaceRemoval = false)
+ .enableInliningAnnotations()
+ .noMinification()
+ .setMinApi(parameters.getRuntime())
+ .run(parameters.getRuntime(), TestClass.class)
+ // TODO(b/133501933): Should succeed.
+ .assertFailureWithErrorThatMatches(containsString(StackOverflowError.class.getTypeName()));
+ }
+
+ static class TestClass {
+
+ public static void main(String[] args) {
+ new B() {}.m(new SubArgType());
+ }
+ }
+
+ interface I<U> {
+
+ void m(U arg);
+ }
+
+ abstract static class A implements I<ArgType> {
+
+ @NeverInline
+ @Override
+ public void m(ArgType x) {
+ if (x == null) {
+ throw new RuntimeException();
+ }
+ }
+ }
+
+ static class B extends A {
+
+ @NeverInline
+ @Override
+ public final void m(ArgType x) {
+ super.m(x);
+ }
+ }
+
+ static class ArgType {}
+
+ static class SubArgType extends ArgType {}
+}
