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.array.copy;
24
25 import jdk.internal.value.ValueClass;
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
31 @Fork(value = 3, jvmArgsAppend = {"--enable-preview", "--add-exports", "java.base/jdk.internal.value=ALL-UNNAMED"})
32 public class ValueOopNullFree extends CopyBase {
33
34 public static class IdentityInt {
35 public final int value;
36 public IdentityInt(int value) {
37 this.value = value;
38 }
39 public int value() {
40 return value;
41 }
42 }
43
44 public interface InterfaceOop {
45 public IdentityInt value();
46 }
47
48 public static value class ValueRef implements InterfaceOop {
49
50 public final IdentityInt value;
51
52 public ValueRef(IdentityInt value) {
53 this.value = value;
54 }
55
56 public IdentityInt value() {
57 return value;
58 }
59
60 }
61
62 public static class ValState extends SizeState {
63 public ValueRef[] arr;
64
65 @Setup
66 public void setup() {
67 arr = (ValueRef[]) ValueClass.newNullRestrictedAtomicArray(ValueRef.class, size, new ValueRef(new IdentityInt(0)));
68 for (int i = 0; i < size; i++) {
69 arr[i] = new ValueRef(new IdentityInt(i));
70 }
71 }
72 }
73
74 public static class IntState extends SizeState {
75 public InterfaceOop[] arr;
76
77 @Setup
78 public void setup() {
79 arr = new InterfaceOop[size];
80 for (int i = 0; i < size; i++) {
81 arr[i] = new ValueRef(new IdentityInt(i));
82 }
83 }
84
85 }
86
87 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
88 public void copy_val(ValueRef[] dst, ValueRef[] src) {
89 for (int i = 0; i < src.length; i++) {
90 dst[i] = src[i];
91 }
92 }
93
94 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
95 public void copy_int(InterfaceOop[] dst, InterfaceOop[] src) {
96 for (int i = 0; i < src.length; i++) {
97 dst[i] = src[i];
98 }
99 }
100
101 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
102 public void arraycopy_val(ValueRef[] dst, ValueRef[] src) {
103 System.arraycopy(src, 0, dst, 0, src.length);
104 }
105
106 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
107 public void arraycopy_int(InterfaceOop[] dst, InterfaceOop[] src) {
108 System.arraycopy(src, 0, dst, 0, src.length);
109 }
110
111 @Benchmark
112 public void copy_val_as_val(ValState st1, ValState st2) {
113 copy_val(st1.arr, st2.arr);
114 }
115
116 @Benchmark
117 public void arraycopy_val_as_val(ValState st1, ValState st2) {
118 arraycopy_val(st1.arr, st2.arr);
119 }
120
121 @Benchmark
122 public void copy_int_as_int(IntState st1, IntState st2) {
123 copy_int(st1.arr, st2.arr);
124 }
125
126 @Benchmark
127 public void arraycopy_int_as_int(IntState st1, IntState st2) {
128 arraycopy_int(st1.arr, st2.arr);
129 }
130
131
132 }