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.callconv;
24
25 import org.openjdk.jmh.annotations.Benchmark;
26 import org.openjdk.jmh.annotations.BenchmarkMode;
27 import org.openjdk.jmh.annotations.CompilerControl;
28 import org.openjdk.jmh.annotations.Fork;
29 import org.openjdk.jmh.annotations.Measurement;
30 import org.openjdk.jmh.annotations.Mode;
31 import org.openjdk.jmh.annotations.OperationsPerInvocation;
32 import org.openjdk.jmh.annotations.OutputTimeUnit;
33 import org.openjdk.jmh.annotations.Scope;
34 import org.openjdk.jmh.annotations.Setup;
35 import org.openjdk.jmh.annotations.State;
36 import org.openjdk.jmh.annotations.Warmup;
37 import org.openjdk.jmh.infra.Blackhole;
38
39 import java.util.Arrays;
40 import java.util.concurrent.TimeUnit;
41
42 @Fork(value = 3, jvmArgsAppend = {"--enable-preview"})
43 @Warmup(iterations = 5, time = 1)
44 @Measurement(iterations = 5, time = 1)
45 @OutputTimeUnit(TimeUnit.NANOSECONDS)
46 @BenchmarkMode(Mode.AverageTime)
47 @State(Scope.Thread)
48 public class Value1 {
49
50 public static final int SIZE = 96; // must be divisible by 2 and 3 and around 100
51
52 public static value class ValueInt1 {
53
54 public final int v0;
55
56 public ValueInt1(int v0) {
57 this.v0 = v0;
58 }
59
60 public int value() {
61 return v0;
62 }
63
64 public static ValueInt1 valueOf(int value) {
65 return new ValueInt1(value);
66 }
67 }
68
69 public abstract static class InvocationLogic {
70 public abstract ValueInt1 compute(ValueInt1 v1);
71 }
72
73 public static class InvokeImpl1 extends InvocationLogic {
74 @Override
75 public ValueInt1 compute(ValueInt1 v1) {
76 return v1;
77 }
78 }
79
80 public static class InvokeImpl2 extends InvocationLogic {
81 @Override
82 public ValueInt1 compute(ValueInt1 v1) {
83 return v1;
84 }
85 }
86
87 public static class InvokeImpl3 extends InvocationLogic {
88 @Override
89 public ValueInt1 compute(ValueInt1 v1) {
90 return v1;
91 }
92 }
93
94 @State(Scope.Thread)
95 public static class StateTargets {
96 InvocationLogic[] arr;
97
98 @Setup
99 public void setup() {
100 arr = new InvocationLogic[SIZE];
101 Arrays.setAll(arr, i -> getImpl(i, 3));
102 }
103
104 private InvocationLogic getImpl(int i, int targets) {
105 return switch (i % targets) {
106 case 0 -> new InvokeImpl1();
107 case 1 -> new InvokeImpl2();
108 default -> new InvokeImpl3();
109 };
110 }
111 }
112
113 ValueInt1 a0 = ValueInt1.valueOf(42);
114
115 @Benchmark
116 @OperationsPerInvocation(SIZE)
117 @CompilerControl(CompilerControl.Mode.DONT_INLINE)
118 public void value_args1(Blackhole bh, StateTargets st) {
119 ValueInt1 v0 = a0;
120 InvocationLogic[] arr = st.arr;
121 for (InvocationLogic t : arr) {
122 bh.consume(t.compute(v0));
123 }
124 }
125
126 }