1 /*
 2  * Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 package org.openjdk.bench.valhalla.field.set;
24 
25 import org.openjdk.jmh.annotations.Benchmark;
26 import org.openjdk.jmh.annotations.CompilerControl;
27 import org.openjdk.jmh.annotations.Setup;
28 
29 public class Identity extends SetBase {
30 
31     public static class RefWrapper {
32         public IdentityInt f;
33 
34         public RefWrapper(IdentityInt f) {
35             this.f = f;
36         }
37     }
38 
39     public interface InterfaceInt {
40         public int value();
41     }
42 
43     public static class IdentityInt implements InterfaceInt {
44         public final int value;
45         public IdentityInt(int value) {
46             this.value = value;
47         }
48         public int value() {
49             return value;
50         }
51     }
52 
53 
54     public static class RefState extends SizeState {
55         public RefWrapper[] arr;
56 
57         @Setup
58         public void setup() {
59             arr = new RefWrapper[size];
60             for (int i = 0; i < size; i++) {
61                 arr[i] = new RefWrapper(new IdentityInt(i));
62             }
63         }
64     }
65 
66     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
67     public IdentityInt get_ref(int i) {
68         return new IdentityInt(i);
69     }
70 
71     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
72     public void set_new(RefWrapper[] dst) {
73         for (int i = 0; i < dst.length; i++) {
74             dst[i].f = new IdentityInt(i);
75         }
76     }
77 
78     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
79     public void set_call(RefWrapper[] dst) {
80         for (int i = 0; i < dst.length; i++) {
81             dst[i].f = get_ref(i);
82         }
83     }
84 
85     @Benchmark
86     public void set_new_ref(RefState st1) {
87         set_new(st1.arr);
88     }
89 
90     @Benchmark
91     public void set_call_ref(RefState st1) {
92         set_call(st1.arr);
93     }
94 
95 }