1 /*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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7 * published by the Free Software Foundation.
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
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22 */
23
24 /**
25 * @test
26 * @bug 8135028
27 * @summary Add C2 x86 Superword support for scalar sum reduction optimizations : double sqrt test
28 * @requires os.arch=="x86" | os.arch=="i386" | os.arch=="amd64" | os.arch=="x86_64" | os.arch=="aarch64" | os.arch=="riscv64"
29 *
30 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
31 * -XX:CompileThresholdScaling=0.1
32 * -XX:+SuperWordReductions
33 * -XX:LoopMaxUnroll=2
34 * compiler.loopopts.superword.SumRedSqrt_Double
35 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
36 * -XX:CompileThresholdScaling=0.1
37 * -XX:-SuperWordReductions
38 * -XX:LoopMaxUnroll=2
39 * compiler.loopopts.superword.SumRedSqrt_Double
40 *
41 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
42 * -XX:CompileThresholdScaling=0.1
43 * -XX:+SuperWordReductions
44 * -XX:LoopMaxUnroll=4
45 * compiler.loopopts.superword.SumRedSqrt_Double
46 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
47 * -XX:CompileThresholdScaling=0.1
48 * -XX:-SuperWordReductions
49 * -XX:LoopMaxUnroll=4
50 * compiler.loopopts.superword.SumRedSqrt_Double
51 *
52 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
53 * -XX:CompileThresholdScaling=0.1
54 * -XX:+SuperWordReductions
55 * -XX:LoopMaxUnroll=8
56 * compiler.loopopts.superword.SumRedSqrt_Double
57 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
58 * -XX:CompileThresholdScaling=0.1
59 * -XX:-SuperWordReductions
60 * -XX:LoopMaxUnroll=8
61 * compiler.loopopts.superword.SumRedSqrt_Double
62 *
63 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
64 * -XX:CompileThresholdScaling=0.1
65 * -XX:+SuperWordReductions
66 * -XX:LoopMaxUnroll=16
67 * compiler.loopopts.superword.SumRedSqrt_Double
68 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250
69 * -XX:CompileThresholdScaling=0.1
70 * -XX:-SuperWordReductions
71 * -XX:LoopMaxUnroll=16
72 * compiler.loopopts.superword.SumRedSqrt_Double
73 */
74
75
76 package compiler.loopopts.superword;
77
78 public class SumRedSqrt_Double {
79 public static void main(String[] args) throws Exception {
80 double[] a = new double[256 * 1024];
81 double[] b = new double[256 * 1024];
82 double[] c = new double[256 * 1024];
83 double[] d = new double[256 * 1024];
84 sumReductionInit(a, b, c);
85 double total = 0;
86 double valid = 2.06157643776E14;
87 for (int j = 0; j < 2000; j++) {
88 total = sumReductionImplement(a, b, c, d, total);
89 }
90 if (total == valid) {
91 System.out.println("Success");
92 } else {
93 System.out.println("Invalid sum of elements variable in total: " + total);
94 System.out.println("Expected value = " + valid);
95 throw new Exception("Failed");
96 }
97 }
98
99 public static void sumReductionInit(
100 double[] a,
101 double[] b,
102 double[] c) {
103 for (int j = 0; j < 1; j++) {
104 for (int i = 0; i < a.length; i++) {
105 a[i] = i * 1 + j;
106 b[i] = i * 1 - j;
107 c[i] = i + j;
108 }
109 }
110 }
111
112 public static double sumReductionImplement(
113 double[] a,
114 double[] b,
115 double[] c,
116 double[] d,
117 double total) {
118 for (int i = 0; i < a.length; i++) {
119 d[i] = Math.sqrt(a[i] * b[i]) + Math.sqrt(a[i] * c[i]) + Math.sqrt(b[i] * c[i]);
120 total += d[i];
121 }
122 return total;
123 }
124
125 }