1 /*
2  * Copyright (C) 2019 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 class Main {
18   public static int mZenMode = 0;
19 
$noinline$foo(int internal, boolean check1, boolean check2)20   public static int $noinline$foo(int internal, boolean check1, boolean check2) {
21     int result = internal;
22     if (check1) {
23       // This block is to ensure `result` is a phi in the return block. Without this block
24       // the compiler could just generate one block with selects.
25       if (check2) {
26         mZenMode = 42;
27       }
28       result = (internal == 1) ? 1 : 0;
29     }
30     // The optimization bug was to make the incorrect assumption that:
31     //    phi = (internal, (internal == 1))
32     // meant `internal` was a boolean.
33     return result;
34   }
35 
main(String[] args)36   public static void main(String[] args) {
37     int result = $noinline$foo(2, true, true);
38     if (result != 0) {
39       throw new Error("Expected 0, got " + result);
40     }
41   }
42 }
43