mirror of git://gcc.gnu.org/git/gcc.git
92 lines
1.7 KiB
C
92 lines
1.7 KiB
C
extern
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#ifdef __cplusplus
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"C"
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#endif
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void abort (void);
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void
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fn1 (double *x, double *y, int z)
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{
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int i;
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for (i = 0; i < z; i++)
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{
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x[i] = i & 31;
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y[i] = (i & 63) - 30;
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}
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}
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#pragma omp declare target
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int tgtv = 6;
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int
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tgt (void)
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{
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#pragma omp atomic update
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tgtv++;
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return 0;
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}
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#pragma omp end declare target
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double
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fn2 (int x, int y, int z)
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{
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double b[1024], c[1024], s = 0;
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int i, j;
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fn1 (b, c, x);
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#pragma omp target data map(to: b)
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{
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#pragma omp target map(tofrom: c, s)
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#pragma omp teams num_teams(y) thread_limit(z) reduction(+:s) firstprivate(x)
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#pragma omp distribute dist_schedule(static, 4) collapse(1)
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for (j=0; j < x; j += y)
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#pragma omp parallel for reduction(+:s)
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for (i = j; i < j + y; i++)
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tgt (), s += b[i] * c[i];
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#pragma omp target update from(b, tgtv)
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}
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return s;
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}
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double
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fn3 (int x)
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{
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double b[1024], c[1024], s = 0;
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int i;
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fn1 (b, c, x);
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#pragma omp target map(to: b, c) map(tofrom:s)
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#pragma omp parallel for reduction(+:s)
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for (i = 0; i < x; i++)
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tgt (), s += b[i] * c[i];
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return s;
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}
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double
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fn4 (int x, double *p)
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{
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double b[1024], c[1024], d[1024], s = 0;
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int i;
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fn1 (b, c, x);
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fn1 (d + x, p + x, x);
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#pragma omp target map(to: b, c[0:x], d[x:x]) map(to:p[x:64 + (x & 31)]) \
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map(tofrom: s)
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#pragma omp parallel for reduction(+:s)
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for (i = 0; i < x; i++)
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s += b[i] * c[i] + d[x + i] + p[x + i];
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return s;
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}
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int
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main ()
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{
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double a = fn2 (128, 4, 6);
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int b = tgtv;
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double c = fn3 (61);
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#pragma omp target update from(tgtv)
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int d = tgtv;
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double e[1024];
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double f = fn4 (64, e);
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if (a != 13888.0 || b != 6 + 128 || c != 4062.0 || d != 6 + 128 + 61
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|| f != 8032.0)
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abort ();
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return 0;
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}
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