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 Value032NullFree extends CopyBase {
 33 
 34     public interface InterfaceInt {
 35         public int value();
 36     }
 37 
 38     public static value class ValueInt implements InterfaceInt {
 39 
 40         public final int value;
 41 
 42         public ValueInt(int value) {
 43             this.value = value;
 44         }
 45 
 46         public int value() {
 47             return value;
 48         }
 49 
 50     }
 51 
 52     public static class ValState extends SizeState {
 53         public ValueInt[] arr;
 54 
 55         @Setup
 56         public void setup() {
 57             arr = (ValueInt[]) ValueClass.newNullRestrictedAtomicArray(ValueInt.class, size, new ValueInt(0));
 58             for (int i = 0; i < size; i++) {
 59                 arr[i] = new ValueInt(i);
 60             }
 61         }
 62     }
 63 
 64     public static class IntState extends SizeState {
 65         public InterfaceInt[] arr;
 66 
 67         @Setup
 68         public void setup() {
 69             arr = new InterfaceInt[size];
 70             for (int i = 0; i < size; i++) {
 71                 arr[i] = new ValueInt(i);
 72             }
 73         }
 74 
 75     }
 76 
 77     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
 78     public void copy_val(ValueInt[] dst, ValueInt[] src) {
 79         for (int i = 0; i < src.length; i++) {
 80             dst[i] = src[i];
 81         }
 82     }
 83 
 84     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
 85     public void copy_int(InterfaceInt[] dst, InterfaceInt[] src) {
 86         for (int i = 0; i < src.length; i++) {
 87             dst[i] = src[i];
 88         }
 89     }
 90 
 91     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
 92     public void arraycopy_val(ValueInt[] dst, ValueInt[] src) {
 93         System.arraycopy(src, 0, dst, 0, src.length);
 94     }
 95 
 96     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
 97     public void arraycopy_int(InterfaceInt[] dst, InterfaceInt[] src) {
 98         System.arraycopy(src, 0, dst, 0, src.length);
 99     }
100 
101     @Benchmark
102     public void copy_val_as_val(ValState st1, ValState st2) {
103         copy_val(st1.arr, st2.arr);
104     }
105 
106     @Benchmark
107     public void arraycopy_val_as_val(ValState st1, ValState st2) {
108         arraycopy_val(st1.arr, st2.arr);
109     }
110 
111     @Benchmark
112     public void copy_int_as_int(IntState st1, IntState st2) {
113         copy_int(st1.arr, st2.arr);
114     }
115 
116     @Benchmark
117     public void arraycopy_int_as_int(IntState st1, IntState st2) {
118         arraycopy_int(st1.arr, st2.arr);
119     }
120 
121 
122 }