1 /*
2 * Copyright (c) 2014, 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 */
24
25 /**
26 * @test
27 * @bug 8135028
28 * @summary Add C2 x86 Superword support for scalar sum reduction optimizations : double sqrt test
29 * @requires os.arch=="x86" | os.arch=="i386" | os.arch=="amd64" | os.arch=="x86_64" | os.arch=="aarch64"
30 *
31 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
32 * -XX:CompileThresholdScaling=0.1
33 * -XX:+SuperWordReductions
34 * -XX:LoopMaxUnroll=2
35 * compiler.loopopts.superword.SumRedSqrt_Double
36 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
37 * -XX:CompileThresholdScaling=0.1
38 * -XX:-SuperWordReductions
39 * -XX:LoopMaxUnroll=2
40 * compiler.loopopts.superword.SumRedSqrt_Double
41 *
42 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
43 * -XX:CompileThresholdScaling=0.1
44 * -XX:+SuperWordReductions
45 * -XX:LoopMaxUnroll=4
46 * compiler.loopopts.superword.SumRedSqrt_Double
47 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
48 * -XX:CompileThresholdScaling=0.1
49 * -XX:-SuperWordReductions
50 * -XX:LoopMaxUnroll=4
51 * compiler.loopopts.superword.SumRedSqrt_Double
52 *
53 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
54 * -XX:CompileThresholdScaling=0.1
55 * -XX:+SuperWordReductions
56 * -XX:LoopMaxUnroll=8
57 * compiler.loopopts.superword.SumRedSqrt_Double
58 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
59 * -XX:CompileThresholdScaling=0.1
60 * -XX:-SuperWordReductions
61 * -XX:LoopMaxUnroll=8
62 * compiler.loopopts.superword.SumRedSqrt_Double
63 *
64 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
65 * -XX:CompileThresholdScaling=0.1
66 * -XX:+SuperWordReductions
67 * -XX:LoopMaxUnroll=16
68 * compiler.loopopts.superword.SumRedSqrt_Double
69 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
70 * -XX:CompileThresholdScaling=0.1
71 * -XX:-SuperWordReductions
72 * -XX:LoopMaxUnroll=16
73 * compiler.loopopts.superword.SumRedSqrt_Double
74 */
75
76
77 package compiler.loopopts.superword;
78
79 public class SumRedSqrt_Double {
80 public static void main(String[] args) throws Exception {
81 double[] a = new double[256 * 1024];
82 double[] b = new double[256 * 1024];
83 double[] c = new double[256 * 1024];
84 double[] d = new double[256 * 1024];
85 sumReductionInit(a, b, c);
86 double total = 0;
87 double valid = 2.06157643776E14;
88 for (int j = 0; j < 2000; j++) {
89 total = sumReductionImplement(a, b, c, d, total);
90 }
91 if (total == valid) {
92 System.out.println("Success");
93 } else {
94 System.out.println("Invalid sum of elements variable in total: " + total);
95 System.out.println("Expected value = " + valid);
96 throw new Exception("Failed");
97 }
98 }
99
100 public static void sumReductionInit(
101 double[] a,
102 double[] b,
103 double[] c) {
104 for (int j = 0; j < 1; j++) {
105 for (int i = 0; i < a.length; i++) {
106 a[i] = i * 1 + j;
107 b[i] = i * 1 - j;
108 c[i] = i + j;
109 }
110 }
111 }
112
113 public static double sumReductionImplement(
114 double[] a,
115 double[] b,
116 double[] c,
117 double[] d,
118 double total) {
119 for (int i = 0; i < a.length; i++) {
120 d[i] = Math.sqrt(a[i] * b[i]) + Math.sqrt(a[i] * c[i]) + Math.sqrt(b[i] * c[i]);
121 total += d[i];
122 }
123 return total;
124 }
125
126 }