1 /*
 2  * Copyright (c) 2025, 2026, 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.read;
24 
25 import jdk.internal.vm.annotation.NullRestricted;
26 import org.openjdk.jmh.annotations.Benchmark;
27 import org.openjdk.jmh.annotations.CompilerControl;
28 import org.openjdk.jmh.annotations.Fork;
29 import org.openjdk.jmh.annotations.Setup;
30 import org.openjdk.jmh.infra.Blackhole;
31 
32 @Fork(value = 3, jvmArgsAppend = {"--enable-preview"})
33 public class Value032NullFree extends ReadBase {
34 
35     public static class ValWrapper {
36         @NullRestricted
37         public ValueInt f;
38 
39         public ValWrapper(ValueInt f) {
40             this.f = f;
41             super();
42         }
43     }
44 
45     public interface InterfaceInt {
46         public int value();
47     }
48 
49     public static value class ValueInt implements InterfaceInt {
50         public final int value;
51 
52         public ValueInt(int value) {
53             this.value = value;
54         }
55 
56         public int value() {
57             return value;
58         }
59     }
60 
61 
62     public static class ValState extends SizeState {
63         public ValWrapper[] arr;
64 
65         @Setup
66         public void setup() {
67             arr = new ValWrapper[size];
68             for (int i = 0; i < size; i++) {
69                 arr[i] = new ValWrapper(new ValueInt(i));
70             }
71         }
72     }
73 
74     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
75     public void read_val(ValWrapper[] src, Blackhole bh) {
76         for (int i = 0; i < src.length; i++) {
77             bh.consume(src[i].f);
78         }
79     }
80 
81 
82     @Benchmark
83     public void read(ValState st1, Blackhole bh) {
84         read_val(st1.arr, bh);
85     }
86 
87 }