Reproduce inadequate argument propagation in presence of join types
Bug: b/284188592
Change-Id: Ic1ad298f99b286d681b52b338349a2d4510610bd
diff --git a/src/test/java/com/android/tools/r8/optimize/argumentpropagation/ArgumentPropagationUpperBoundWithInterfacesTest.java b/src/test/java/com/android/tools/r8/optimize/argumentpropagation/ArgumentPropagationUpperBoundWithInterfacesTest.java
new file mode 100644
index 0000000..1c1e45a
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/optimize/argumentpropagation/ArgumentPropagationUpperBoundWithInterfacesTest.java
@@ -0,0 +1,90 @@
+// Copyright (c) 2023, 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.optimize.argumentpropagation;
+
+import com.android.tools.r8.NoHorizontalClassMerging;
+import com.android.tools.r8.NoUnusedInterfaceRemoval;
+import com.android.tools.r8.NoVerticalClassMerging;
+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.HorizontallyMergedClassesInspector;
+import com.android.tools.r8.utils.codeinspector.VerticallyMergedClassesInspector;
+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;
+
+/** Regression test for b/284188592. */
+@RunWith(Parameterized.class)
+public class ArgumentPropagationUpperBoundWithInterfacesTest extends TestBase {
+
+ @Parameter(0)
+ public TestParameters parameters;
+
+ @Parameters(name = "{0}")
+ public static TestParametersCollection data() {
+ return getTestParameters().withAllRuntimesAndApiLevels().build();
+ }
+
+ @Test
+ public void test() throws Exception {
+ testForR8(parameters.getBackend())
+ .addInnerClasses(getClass())
+ .addKeepMainRule(Main.class)
+ .addHorizontallyMergedClassesInspector(
+ HorizontallyMergedClassesInspector::assertNoClassesMerged)
+ .addVerticallyMergedClassesInspector(
+ VerticallyMergedClassesInspector::assertNoClassesMerged)
+ .enableNoHorizontalClassMergingAnnotations()
+ .enableNoUnusedInterfaceRemovalAnnotations()
+ .enableNoVerticalClassMergingAnnotations()
+ .setMinApi(parameters)
+ .compile()
+ .run(parameters.getRuntime(), Main.class)
+ // TODO(b/284188592): Should succeed with "42".
+ .assertFailureWithErrorThatThrows(NullPointerException.class);
+ }
+
+ static class Main {
+
+ public static void main(String[] args) {
+ // A value with upper bound class type B and interface I.
+ B b = System.currentTimeMillis() > 0 ? new C() : new D();
+ // A virtual invoke with arguments [42] and upper bound class type B and interface I.
+ b.foo(42);
+ }
+ }
+
+ @NoUnusedInterfaceRemoval
+ interface I {}
+
+ @NoVerticalClassMerging
+ abstract static class A {
+
+ abstract void foo(int i);
+ }
+
+ abstract static class B extends A {}
+
+ @NoHorizontalClassMerging
+ static class C extends B implements I {
+
+ @Override
+ void foo(int i) {
+ System.out.println(i);
+ }
+ }
+
+ @NoHorizontalClassMerging
+ static class D extends B implements I {
+
+ @Override
+ void foo(int i) {
+ System.out.println(i);
+ }
+ }
+}
