1 /*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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13 * accompanied this code).
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23 */
24
25 /**
26 * @test
27 * @bug 8074981
28 * @summary Add C2 x86 Superword support for scalar product reduction optimizations : float 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.ProdRed_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.ProdRed_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.ProdRed_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.ProdRed_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.ProdRed_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.ProdRed_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.ProdRed_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.ProdRed_Double
74 */
75
76 package compiler.loopopts.superword;
77
78 public class ProdRed_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 prodReductionInit(a, b);
83 double valid = 2000;
84 double total = 0;
85 for (int j = 0; j < 2000; j++) {
86 total = j + 1;
87 total = prodReductionImplement(a, b, total);
88 }
89 if (total == valid) {
90 System.out.println("Success");
91 } else {
92 System.out.println("Invalid sum of elements variable in total: " + total);
93 System.out.println("Expected value = " + valid);
94 throw new Exception("Failed");
95 }
96 }
97
98 public static void prodReductionInit(double[] a, double[] b) {
99 for (int i = 0; i < a.length; i++) {
100 a[i] = i + 2;
101 b[i] = i + 1;
102 }
103 }
104
105 public static double prodReductionImplement(double[] a, double[] b, double total) {
106 for (int i = 0; i < a.length; i++) {
107 total *= a[i] - b[i];
108 }
109 return total;
110 }
111
112 }