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.sum;
24 
25 import org.openjdk.jmh.annotations.Benchmark;
26 import org.openjdk.jmh.annotations.CompilerControl;
27 import org.openjdk.jmh.annotations.Setup;
28 
29 public class Primitive extends SumBase {
30 
31     public static class PrimitiveState extends SizeState {
32         public int[] arr;
33 
34         @Setup
35         public void setup() {
36             arr = new int[size * 4];
37             for (int i = 0; i < arr.length; i++) {
38                 arr[i] = i;
39             }
40         }
41     }
42 
43     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
44     private static int sum_primitive(int[] src) {
45         int s = 0;
46         for (int v : src) {
47             s += v;
48         }
49         return s;
50     }
51 
52     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
53     private static int sum_primitive1(int[] src) {
54         int s = 0;
55         for (int i = 0; i < src.length; i += 2) {
56             s += src[i] + src[i + 1];
57         }
58         return s;
59     }
60 
61     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
62     private static int sum_primitive2(int[] src) {
63         int s = 0;
64         for (int i = 0; i < src.length; i += 4) {
65             s += src[i] + src[i + 1] + src[i + 2] + src[i + 3];
66         }
67         return s;
68     }
69 
70     @Benchmark
71     public void sum(PrimitiveState st) {
72         sum_primitive(st.arr);
73     }
74     @Benchmark
75     public void sum1(PrimitiveState st) {
76         sum_primitive1(st.arr);
77     }
78     @Benchmark
79     public void sum2(PrimitiveState st) {
80         sum_primitive2(st.arr);
81     }
82 
83 }