libgomp/testsuite/libgomp.c/taskloop-3.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -fopenmp -std=c99" } */
   3
   4 int g;
   5 int a[1024];
   6
   7 __attribute__((noinline, noclone)) int
   8 f1 (int x)
   9 {
  10   #pragma omp taskloop firstprivate (x) lastprivate (x)
  11   for (int i = 0; i < 64; i++)
  12     {
  13       if (x != 74)
  14         __builtin_abort ();
  15       if (i == 63)
  16         x = i + 4;
  17     }
  18   return x;
  19 }
  20
  21 __attribute__((noinline, noclone)) void
  22 f2 (void)
  23 {
  24   #pragma omp taskloop firstprivate (g) lastprivate (g) nogroup
  25   for (int i = 0; i < 64; i++)
  26     {
  27       if (g != 77)
  28         __builtin_abort ();
  29       if (i == 63)
  30         g = i + 9;
  31     }
  32 }
  33
  34 __attribute__((noinline, noclone)) long long
  35 f3 (long long a, long long b, long long c)
  36 {
  37   long long i;
  38   int l;
  39   #pragma omp taskloop default (none) lastprivate (i, l)
  40   for (i = a; i < b; i += c)
  41     l = i;
  42   return l * 7 + i;
  43 }
  44
  45 __attribute__((noinline, noclone)) long long
  46 f4 (long long a, long long b, long long c, long long d,
  47     long long e, long long f, int k)
  48 {
  49   long long i, j;
  50   int l;
  51   #pragma omp taskloop default (none) collapse(2) \
  52               firstprivate (k) lastprivate (i, j, k, l)
  53   for (i = a; i < b; i += e)
  54     for (j = c; j < d; j += f)
  55       {
  56         if (k != 73)
  57           __builtin_abort ();
  58         if (i == 31 && j == 46)
  59           k = i;
  60         l = j;
  61       }
  62   return i + 5 * j + 11 * k + 17 * l;
  63 }
  64
  65 int
  66 main ()
  67 {
  68   #pragma omp parallel
  69     #pragma omp single
  70       {
  71         if (f1 (74) != 63 + 4)
  72           __builtin_abort ();
  73         g = 77;
  74         f2 ();
  75         #pragma omp taskwait
  76         if (g != 63 + 9)
  77           __builtin_abort ();
  78         if (f3 (7, 12, 2) != 11 * 7 + 13)
  79           __builtin_abort ();
  80         if (f4 (0, 32, 16, 48, 1, 2, 73) != 32 + 5 * 48 + 11 * 31 + 17 * 46)
  81           __builtin_abort ();
  82       }
  83   return 0;
  84 }