ProdRed_Int.java revision 11707:ad7af1afda7a 
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24
25/**
26 * @test
27 * @bug 8074981
28 * @summary Add C2 x86 Superword support for scalar product reduction optimizations : int 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_Int
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_Int
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_Int
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_Int
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_Int
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_Int
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_Int
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_Int
74 */
75
76package compiler.loopopts.superword;
77
78public class ProdRed_Int {
79    public static void main(String[] args) throws Exception {
80        int[] a = new int[256 * 1024];
81        int[] b = new int[256 * 1024];
82        prodReductionInit(a, b);
83        int valid = 419430401;
84        int total = 1;
85        for (int j = 0; j < 2000; j++) {
86            total = prodReductionImplement(a, b, total);
87        }
88        if (total == valid) {
89            System.out.println("Success");
90        } else {
91            System.out.println("Invalid sum of elements variable in total: " + total);
92            System.out.println("Expected value = " + valid);
93            throw new Exception("Failed");
94        }
95    }
96
97    public static void prodReductionInit(int[] a, int[] b) {
98        for (int i = 0; i < a.length; i++) {
99            a[i] = i + 2;
100            b[i] = i + 1;
101        }
102    }
103
104    public static int prodReductionImplement(int[] a, int[] b, int total) {
105        for (int i = 0; i < a.length; i++) {
106            total *= a[i] + b[i];
107        }
108        return total;
109    }
110
111}
112