Reproduce compilation failure from unexpected string switch
Bug: 175132220
Change-Id: I2cd214f54df7acfd54db6202f681c1477eb0de23
diff --git a/src/test/java/com/android/tools/r8/ir/optimize/switches/StringSwitchWitNonConstIdTest.java b/src/test/java/com/android/tools/r8/ir/optimize/switches/StringSwitchWitNonConstIdTest.java
new file mode 100644
index 0000000..c993353
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/ir/optimize/switches/StringSwitchWitNonConstIdTest.java
@@ -0,0 +1,106 @@
+// 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.ir.optimize.switches;
+
+import static org.junit.Assume.assumeTrue;
+
+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;
+
+@RunWith(Parameterized.class)
+public class StringSwitchWitNonConstIdTest extends TestBase {
+
+ private final TestParameters parameters;
+
+ @Parameterized.Parameters(name = "{0}")
+ public static TestParametersCollection data() {
+ return getTestParameters().withAllRuntimesAndApiLevels().build();
+ }
+
+ public StringSwitchWitNonConstIdTest(TestParameters parameters) {
+ this.parameters = parameters;
+ }
+
+ @Test
+ public void testD8() throws Exception {
+ assumeTrue(parameters.isDexRuntime());
+ testForD8()
+ .addProgramClasses(Main.class)
+ .release()
+ .setMinApi(parameters.getApiLevel())
+ .run(parameters.getRuntime(), Main.class)
+ .assertSuccessWithOutputLines("Foo", "Bar", "Baz", "Qux");
+ }
+
+ @Test
+ public void testR8() throws Exception {
+ testForR8(parameters.getBackend())
+ .addProgramClasses(Main.class)
+ .addKeepMainRule(Main.class)
+ .enableInliningAnnotations()
+ .release()
+ .setMinApi(parameters.getApiLevel())
+ .run(parameters.getRuntime(), Main.class)
+ .assertSuccessWithOutputLines("Foo", "Bar", "Baz", "Qux");
+ }
+
+ static class Main {
+
+ public static void main(String[] args) {
+ test("Foo");
+ test("Bar");
+ test("Baz");
+ test("Qux");
+ }
+
+ @NeverInline
+ static void test(String str) {
+ int hashCode = str.hashCode();
+ int id = 0;
+ int foo = one();
+ switch (hashCode) {
+ case 70822: // "Foo".hashCode()
+ if (str.equals("Foo")) {
+ id = foo;
+ }
+ break;
+ case 66547: // "Bar".hashCode()
+ if (str.equals("Bar")) {
+ id = 2;
+ }
+ break;
+ case 66555: // "Baz".hashCode()
+ if (str.equals("Baz")) {
+ id = 3;
+ }
+ break;
+ }
+ switch (id) {
+ case 1:
+ System.out.println("Foo");
+ break;
+ case 2:
+ System.out.println("Bar");
+ break;
+ case 3:
+ System.out.println("Baz");
+ break;
+ default:
+ System.out.println("Qux");
+ break;
+ }
+ }
+
+ @NeverInline
+ static int one() {
+ return 1;
+ }
+ }
+}
