1 /*
 2  * Copyright (c) 2020, 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.sum;
24 
25 import org.openjdk.bench.valhalla.array.util.StatesROpt;
26 import org.openjdk.bench.valhalla.types.Int32;
27 import org.openjdk.bench.valhalla.types.Opt;
28 import org.openjdk.bench.valhalla.types.ROpt;
29 import org.openjdk.jmh.annotations.Benchmark;
30 import org.openjdk.jmh.annotations.CompilerControl;
31 
32 public class IdentityOpt extends StatesROpt {
33 
34     @Benchmark
35     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
36     public int Ref_as_Ref_fields(Ref_as_Ref st) {
37         int s = 0;
38         ROpt<Int32>[] arr = st.arr;
39         for(int i=0; i < arr.length; i++) {
40             s += arr[i].value.intValue();
41         }
42         return s;
43     }
44 
45     @Benchmark
46     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
47     public int Ref_as_Ref_sum(Ref_as_Ref st) {
48         int s = 0;
49         ROpt<Int32>[] arr = st.arr;
50         for(int i=0; i < arr.length; i++) {
51             s += arr[i].get().intValue();
52         }
53         return s;
54     }
55 
56     @Benchmark
57     @CompilerControl(CompilerControl.Mode.DONT_INLINE)
58     public int Int_as_Int_sum(Int_as_Int st) {
59         int s = 0;
60         Opt<Int32>[] arr = st.arr;
61         for(int i=0; i < arr.length; i++) {
62             s += arr[i].get().intValue();
63         }
64         return s;
65     }
66 
67 }