xref: /aosp_15_r20/art/test/2252-rem-optimization-dividend-divisor/src/Main.java (revision 795d594fd825385562da6b089ea9b2033f3abf5a)
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 class Main {
main(String[] args)18     public static void main(String[] args) {
19         $noinline$assertEquals(0, $noinline$testRemCaller());
20     }
21 
$noinline$assertEquals(int expected, int result)22     public static void $noinline$assertEquals(int expected, int result) {
23         if (expected != result) {
24             throw new Error("Expected: " + expected + ", found: " + result);
25         }
26     }
27 
$noinline$testRemCaller()28     private static int $noinline$testRemCaller() {
29         return $inline$remMethod(50);
30     }
31 
$inline$remMethod(int param)32     private static int $inline$remMethod(int param) {
33         // We were replacing this Rem with the div below when both the dividend and the
34         // divisor were the same. We shouldn't do that since we didn't find a Div(50, 50).
35         int result = param % 50;
36         return result / 50;
37     }
38 }
39