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 ValueOopNullFreeNonAtomic extends FillBase {
39
40 public static class IdentityInt {
41 public final int value;
42 public IdentityInt(int value) {
43 this.value = value;
44 }
45 public int value() {
46 return value;
47 }
48 }
49
50 public interface InterfaceOop {
51 public IdentityInt value();
52 }
53
54 @LooselyConsistentValue
55 public static value class ValueRef implements InterfaceOop {
56
57 public final IdentityInt value;
58
59 public ValueRef(IdentityInt value) {
60 this.value = value;
61 }
62
63 public IdentityInt value() {
64 return value;
65 }
66
67 }
68
69 public static class ValState extends SizeState {
70 public ValueRef[] arr;
71
72 @Setup
73 public void setup() {
74 arr = (ValueRef[]) ValueClass.newNullRestrictedAtomicArray(ValueRef.class, size, new ValueRef(new IdentityInt(0)));
75 for (int i = 0; i < size; i++) {
76 arr[i] = new ValueRef(new IdentityInt(i));
77 }
78 }
79 }
80
81 public static class StaticHolder {
82 @NullRestricted
83 public static ValueRef VALUE = new ValueRef(new IdentityInt(42));
84 }
85
86 @State(Scope.Thread)
87 public static class InstanceHolder {
88 @NullRestricted
89 public ValueRef VALUE;
90
91 public InstanceHolder() {
92 VALUE = new ValueRef(new IdentityInt(42));
93 super();
94 }
95 }
96
97 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
98 public ValueRef get_val(int i) {
99 return new ValueRef(new IdentityInt(i));
100 }
101
102 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
103 public void fill_new_val(ValueRef[] dst) {
104 for (int i = 0; i < dst.length; i++) {
105 dst[i] = new ValueRef(new IdentityInt(42));
106 }
107 }
108
109 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
110 public void arrayfill_new_val(ValueRef[] dst) {
111 Arrays.fill(dst, new ValueRef(new IdentityInt(42)));
112 }
113
114 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
115 public void fill_local_val(ValueRef[] dst) {
116 ValueRef local = get_val(42);
117 for (int i = 0; i < dst.length; i++) {
118 dst[i] = local;
119 }
120 }
121
122 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
123 public void arrayfill_local_val(ValueRef[] dst) {
124 Arrays.fill(dst, get_val(42));
125 }
126
127 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
128 public void fill_static_val(ValueRef[] dst) {
129 for (int i = 0; i < dst.length; i++) {
130 dst[i] = StaticHolder.VALUE;
131 }
132 }
133
134 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
135 public void arrayfill_static_val(ValueRef[] dst) {
136 Arrays.fill(dst, StaticHolder.VALUE);
137 }
138
139 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
140 public void fill_instance_val(ValueRef[] dst, InstanceHolder ih) {
141 for (int i = 0; i < dst.length; i++) {
142 dst[i] = ih.VALUE;
143 }
144 }
145
146 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
147 public void arrayfill_instance_val(ValueRef[] dst, InstanceHolder ih) {
148 Arrays.fill(dst, ih.VALUE);
149 }
150
151 @Benchmark
152 public void fill_new(ValState st1) {
153 fill_new_val(st1.arr);
154 }
155
156 @Benchmark
157 public void arrayfill_new(ValState st1) {
158 arrayfill_new_val(st1.arr);
159 }
160
161 @Benchmark
162 public void fill_local(ValState st1) {
163 fill_local_val(st1.arr);
164 }
165
166 @Benchmark
167 public void arrayfill_local(ValState st1) {
168 arrayfill_local_val(st1.arr);
169 }
170
171 @Benchmark
172 public void fill_static(ValState st1) {
173 fill_static_val(st1.arr);
174 }
175
176 @Benchmark
177 public void arrayfill_static(ValState st1) {
178 arrayfill_static_val(st1.arr);
179 }
180
181 @Benchmark
182 public void fill_instance(ValState st1, InstanceHolder ih) {
183 fill_instance_val(st1.arr, ih);
184 }
185
186 @Benchmark
187 public void arrayfill_instance(ValState st1, InstanceHolder ih) {
188 arrayfill_instance_val(st1.arr, ih);
189 }
190
191 }