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.array.fill;
24
25 import jdk.internal.value.ValueClass;
26 import jdk.internal.vm.annotation.LooselyConsistentValue;
27 import jdk.internal.vm.annotation.NullRestricted;
28 import org.openjdk.jmh.annotations.Benchmark;
29 import org.openjdk.jmh.annotations.CompilerControl;
30 import org.openjdk.jmh.annotations.Fork;
31 import org.openjdk.jmh.annotations.Scope;
32 import org.openjdk.jmh.annotations.Setup;
33 import org.openjdk.jmh.annotations.State;
34
35 import java.util.Arrays;
36
37 @Fork(value = 3, jvmArgsAppend = {"--enable-preview", "--add-exports", "java.base/jdk.internal.value=ALL-UNNAMED"})
38 public class Value032NullFreeNonAtomic extends FillBase {
39
40 public interface InterfaceInt {
41 public int value();
42 }
43
44 @LooselyConsistentValue
45 public static value class ValueInt implements InterfaceInt {
46
47 public final int value;
48
49 public ValueInt(int value) {
50 this.value = value;
51 }
52
53 public int value() {
54 return value;
55 }
56
57 }
58
59 public static class ValState extends SizeState {
60 public ValueInt[] arr;
61
62 @Setup
63 public void setup() {
64 arr = (ValueInt[]) ValueClass.newNullRestrictedNonAtomicArray(ValueInt.class, size, new ValueInt(0));
65 for (int i = 0; i < size; i++) {
66 arr[i] = new ValueInt(i);
67 }
68 }
69 }
70
71 public static class StaticHolder {
72 @NullRestricted
73 public static ValueInt VALUE = new ValueInt(42);
74 }
75
76 @State(Scope.Thread)
77 public static class InstanceHolder {
78 @NullRestricted
79 public ValueInt VALUE;
80
81 public InstanceHolder() {
82 VALUE = new ValueInt(42);
83 super();
84 }
85 }
86
87 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
88 public ValueInt get_val(int i) {
89 return new ValueInt(i);
90 }
91
92 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
93 public void fill_new_val(ValueInt[] dst) {
94 for (int i = 0; i < dst.length; i++) {
95 dst[i] = new ValueInt(42);
96 }
97 }
98
99 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
100 public void arrayfill_new_val(ValueInt[] dst) {
101 Arrays.fill(dst, new ValueInt(42));
102 }
103
104 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
105 public void fill_local_val(ValueInt[] dst) {
106 ValueInt local = get_val(42);
107 for (int i = 0; i < dst.length; i++) {
108 dst[i] = local;
109 }
110 }
111
112 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
113 public void arrayfill_local_val(ValueInt[] dst) {
114 Arrays.fill(dst, get_val(42));
115 }
116
117 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
118 public void fill_static_val(ValueInt[] dst) {
119 for (int i = 0; i < dst.length; i++) {
120 dst[i] = StaticHolder.VALUE;
121 }
122 }
123
124 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
125 public void arrayfill_static_val(ValueInt[] dst) {
126 Arrays.fill(dst, StaticHolder.VALUE);
127 }
128
129 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
130 public void fill_instance_val(ValueInt[] dst, InstanceHolder ih) {
131 for (int i = 0; i < dst.length; i++) {
132 dst[i] = ih.VALUE;
133 }
134 }
135
136 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
137 public void arrayfill_instance_val(ValueInt[] dst, InstanceHolder ih) {
138 Arrays.fill(dst, ih.VALUE);
139 }
140
141 @Benchmark
142 public void fill_new(ValState st1) {
143 fill_new_val(st1.arr);
144 }
145
146 @Benchmark
147 public void arrayfill_new(ValState st1) {
148 arrayfill_new_val(st1.arr);
149 }
150
151 @Benchmark
152 public void fill_local(ValState st1) {
153 fill_local_val(st1.arr);
154 }
155
156 @Benchmark
157 public void arrayfill_local(ValState st1) {
158 arrayfill_local_val(st1.arr);
159 }
160
161 @Benchmark
162 public void fill_static(ValState st1) {
163 fill_static_val(st1.arr);
164 }
165
166 @Benchmark
167 public void arrayfill_static(ValState st1) {
168 arrayfill_static_val(st1.arr);
169 }
170
171 @Benchmark
172 public void fill_instance(ValState st1, InstanceHolder ih) {
173 fill_instance_val(st1.arr, ih);
174 }
175
176 @Benchmark
177 public void arrayfill_instance(ValState st1, InstanceHolder ih) {
178 arrayfill_instance_val(st1.arr, ih);
179 }
180
181 }