Reproduce undefined value error from shorten live ranges
Bug: b/241636314
Change-Id: Ia9ef5792c76aa4d31c217e75f46b6671086780af
diff --git a/src/test/java/com/android/tools/r8/ir/optimize/ShortenLiveRangesOfInstanceGetWithPhiUserRegressionTest.java b/src/test/java/com/android/tools/r8/ir/optimize/ShortenLiveRangesOfInstanceGetWithPhiUserRegressionTest.java
new file mode 100644
index 0000000..20b3e58
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/ir/optimize/ShortenLiveRangesOfInstanceGetWithPhiUserRegressionTest.java
@@ -0,0 +1,56 @@
+// Copyright (c) 2022, 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;
+
+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.Parameter;
+import org.junit.runners.Parameterized.Parameters;
+
+/** Reproduction of b/241636314. */
+@RunWith(Parameterized.class)
+public class ShortenLiveRangesOfInstanceGetWithPhiUserRegressionTest 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)
+ .setMinApi(parameters.getApiLevel())
+ .run(parameters.getRuntime(), Main.class)
+ .assertSuccessWithOutputLines("0", "1", "2");
+ }
+
+ static class Main {
+
+ public final long index;
+
+ Main(long index) {
+ this.index = index;
+ }
+
+ public static void main(String[] args) {
+ Main main = new Main(1);
+ long index = 0;
+ do {
+ System.out.println(index); // Print the value of the phi.
+ index = main.index;
+ main = new Main(index + 1);
+ } while (index < 3);
+ }
+ }
+}
