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.field.copy;
 24 
 25 import jdk.internal.vm.annotation.NullRestricted;
 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"})
 32 public class Value032NullFree extends CopyBase {
 33 
 34     public static class ValWrapper {
 35         @NullRestricted
 36         public ValueInt f;
 37 
 38         public ValWrapper(ValueInt f) {
 39             this.f = f;
 40             super();
 41         }
 42     }
 43 
 44     public static class IntWrapper {
 45         public InterfaceInt f;
 46 
 47         public IntWrapper(ValueInt f) {
 48             this.f = f;
 49         }
 50     }
 51 
 52 
 53     public interface InterfaceInt {
 54         public int value();
 55     }
 56 
 57     public static value class ValueInt implements InterfaceInt {
 58         public final int value;
 59         public ValueInt(int value) {
 60             this.value = value;
 61         }
 62         public int value() {
 63             return value;
 64         }
 65     }
 66 
 67 
 68     public static class ValState extends SizeState {
 69         public ValWrapper[] arr;
 70 
 71         @Setup
 72         public void setup() {
 73             arr = new ValWrapper[size];
 74             for (int i = 0; i < size; i++) {
 75                 arr[i] = new ValWrapper(new ValueInt(i));
 76             }
 77         }
 78     }
 79 
 80     public static class IntState extends SizeState {
 81         public IntWrapper[] arr;
 82 
 83         @Setup
 84         public void setup() {
 85             arr = new IntWrapper[size];
 86             for (int i = 0; i < size; i++) {
 87                 arr[i] = new IntWrapper(new ValueInt(i));
 88             }
 89         }
 90     }
 91 
 92     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
 93     public void copy(ValWrapper[] dst, ValWrapper[] src) {
 94         for (int i = 0; i < src.length; i++) {
 95             dst[i].f = src[i].f;
 96         }
 97     }
 98 
 99     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
100     public void copy_to_int(IntWrapper[] dst, ValWrapper[] src) {
101         for (int i = 0; i < src.length; i++) {
102             dst[i].f = src[i].f;
103         }
104     }
105 
106     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
107     public void copy_to_val(ValWrapper[] dst, IntWrapper[] src) {
108         for (int i = 0; i < src.length; i++) {
109             dst[i].f = (ValueInt) src[i].f;
110         }
111     }
112 
113     @Benchmark
114     public void copy_val(ValState st1, ValState st2) {
115         copy(st1.arr, st2.arr);
116     }
117 
118     @Benchmark
119     public void copy_val_to_int(IntState st1, ValState st2) {
120         copy_to_int(st1.arr, st2.arr);
121     }
122 
123     @Benchmark
124     public void copy_int_to_val(ValState st1, IntState st2) {
125         copy_to_val(st1.arr, st2.arr);
126     }
127 
128 }