libgomp/testsuite/libgomp.oacc-c-c++-common/collapse-1.c

   1 /* { dg-do run } */
   2
   3 #include <string.h>
   4 #include <stdlib.h>
   5
   6 int
   7 main (void)
   8 {
   9   int i, j, k, l = 0;
  10   int a[3][3][3];
  11
  12   memset (a, '\0', sizeof (a));
  13   #pragma acc parallel
  14   #pragma acc loop collapse(4 - 1)
  15     for (i = 0; i < 2; i++)
  16       for (j = 0; j < 2; j++)
  17         for (k = 0; k < 2; k++)
  18           a[i][j][k] = i + j * 4 + k * 16;
  19   #pragma acc parallel
  20     {
  21       #pragma acc loop collapse(2) reduction(|:l)
  22         for (i = 0; i < 2; i++)
  23           for (j = 0; j < 2; j++)
  24             for (k = 0; k < 2; k++)
  25               if (a[i][j][k] != i + j * 4 + k * 16)
  26                 l = 1;
  27     }
  28   if (l)
  29     abort ();
  30   return 0;
  31 }