Reproduction for L8+R8 devirtualizer issue
Bug: 189264383
Change-Id: I7aa8a1156bcbde07634cdd961c0b66f1cd40ba1d
diff --git a/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/SimpleStreamTest.java b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/SimpleStreamTest.java
new file mode 100644
index 0000000..d454fe7
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/SimpleStreamTest.java
@@ -0,0 +1,87 @@
+// Copyright (c) 2021, 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.desugar.desugaredlibrary;
+
+import com.android.tools.r8.TestParameters;
+import com.android.tools.r8.utils.BooleanUtils;
+import com.android.tools.r8.utils.StringUtils;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+import org.junit.Assume;
+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 SimpleStreamTest extends DesugaredLibraryTestBase {
+
+ private static final String EXPECTED_RESULT = StringUtils.lines("3");
+
+ private final TestParameters parameters;
+ private final boolean shrinkDesugaredLibrary;
+
+ @Parameters(name = "{1}, shrinkDesugaredLibrary: {0}")
+ public static List<Object[]> data() {
+ return buildParameters(
+ BooleanUtils.values(), getTestParameters().withDexRuntimes().withAllApiLevels().build());
+ }
+
+ public SimpleStreamTest(boolean shrinkDesugaredLibrary, TestParameters parameters) {
+ this.shrinkDesugaredLibrary = shrinkDesugaredLibrary;
+ this.parameters = parameters;
+ }
+
+ @Test
+ public void testStreamD8() throws Exception {
+ Assume.assumeFalse("TODO(b/189264383): fix", shrinkDesugaredLibrary);
+ KeepRuleConsumer keepRuleConsumer = createKeepRuleConsumer(parameters);
+ testForD8()
+ .addInnerClasses(SimpleStreamTest.class)
+ .setMinApi(parameters.getApiLevel())
+ .enableCoreLibraryDesugaring(parameters.getApiLevel(), keepRuleConsumer)
+ .compile()
+ .addDesugaredCoreLibraryRunClassPath(
+ this::buildDesugaredLibrary,
+ parameters.getApiLevel(),
+ keepRuleConsumer.get(),
+ shrinkDesugaredLibrary)
+ .run(parameters.getRuntime(), Executor.class)
+ .assertSuccessWithOutput(EXPECTED_RESULT);
+ }
+
+ @Test
+ public void testStreamR8() throws Exception {
+ Assume.assumeFalse("TODO(b/189264383): fix", shrinkDesugaredLibrary);
+ KeepRuleConsumer keepRuleConsumer = createKeepRuleConsumer(parameters);
+ testForR8(Backend.DEX)
+ .addInnerClasses(SimpleStreamTest.class)
+ .setMinApi(parameters.getApiLevel())
+ .addKeepClassAndMembersRules(Executor.class)
+ .enableCoreLibraryDesugaring(parameters.getApiLevel(), keepRuleConsumer)
+ .compile()
+ .addDesugaredCoreLibraryRunClassPath(
+ this::buildDesugaredLibrary,
+ parameters.getApiLevel(),
+ keepRuleConsumer.get(),
+ shrinkDesugaredLibrary)
+ .run(parameters.getRuntime(), Executor.class)
+ .assertSuccessWithOutput(EXPECTED_RESULT);
+ }
+
+ @SuppressWarnings("unchecked")
+ static class Executor {
+
+ public static void main(String[] args) {
+ ArrayList<Integer> integers = new ArrayList<>();
+ integers.add(1);
+ integers.add(2);
+ integers.add(3);
+ List<Integer> collectedList = integers.stream().map(i -> i + 3).collect(Collectors.toList());
+ System.out.println(collectedList.size());
+ }
+ }
+}
