1 /*
2  * Copyright (C) 2023 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 public final class Main {
main(String[] args)18     public static void main(String[] args) {
19         try {
20             $noinline$testAlwaysThrowsDevirtualization();
21             System.out.println("Expected to throw error.");
22         } catch (Error expected) {
23         }
24     }
25 
throwsIfParamIsZero(int param)26     public void throwsIfParamIsZero(int param) {
27         if (param == 0) {
28             throw new Error("");
29         }
30     }
31 
32     /// CHECK-START: void Main.$noinline$testAlwaysThrowsDevirtualization() inliner (before)
33     /// CHECK:     InvokeVirtual method_name:Main.throwsIfParamIsZero always_throws:false
34     /// CHECK:     ReturnVoid
35 
36     /// CHECK-START: void Main.$noinline$testAlwaysThrowsDevirtualization() inliner (after)
37     /// CHECK-NOT: InvokeVirtual
38 
39     /// CHECK-START: void Main.$noinline$testAlwaysThrowsDevirtualization() inliner (after)
40     /// CHECK:     InvokeStaticOrDirect method_name:Main.throwsIfParamIsZero always_throws:true
41 
$noinline$testAlwaysThrowsDevirtualization()42     public static void $noinline$testAlwaysThrowsDevirtualization() {
43         Main m = new Main();
44         m.throwsIfParamIsZero(0);
45     }
46 }
47