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.read;
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 import org.openjdk.jmh.infra.Blackhole;
31 
32 @Fork(value = 3, jvmArgsAppend = {"--enable-preview", "--add-exports", "java.base/jdk.internal.value=ALL-UNNAMED"})
33 public class Value128NullFree extends ReadBase {
34 
35     public interface InterfaceInt {
36         public int value();
37     }
38 
39     public static value class ValueInt4 implements InterfaceInt {
40 
41         public final int prevalue0;
42         public final int prevalue1;
43         public final int prevalue2;
44 
45         public final int value;
46 
47         public ValueInt4(int value) {
48             this.prevalue0 = value;
49             this.prevalue1 = value;
50             this.prevalue2 = value;
51             this.value = value;
52         }
53 
54         public int value() {
55             return value;
56         }
57 
58     }
59 
60     public static class ValState extends SizeState {
61         public ValueInt4[] arr;
62 
63         @Setup
64         public void setup() {
65             arr = (ValueInt4[]) ValueClass.newNullRestrictedAtomicArray(ValueInt4.class, size, new ValueInt4(0));
66             for (int i = 0; i < size; i++) {
67                 arr[i] = new ValueInt4(i);
68             }
69         }
70     }
71 
72     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
73     public void read_val(ValueInt4[] src, Blackhole bh) {
74         for (int i = 0; i < src.length; i++) {
75             bh.consume(src[i]);
76         }
77     }
78 
79     @Benchmark
80     public void read(ValState st1, Blackhole bh) {
81         read_val(st1.arr, bh);
82     }
83 
84 }