libgomp/testsuite/libgomp.c/collapse-3.c

   1 /* { dg-do run } */
   2 /* { dg-additional-options "-std=gnu99" } */
   3
   4 #include <string.h>
   5 #include <stdlib.h>
   6
   7 int
   8 main (void)
   9 {
  10   int i2, l = 0;
  11   int a[3][3][3];
  12
  13   memset (a, '\0', sizeof (a));
  14   #pragma omp parallel for collapse(4 - 1) schedule(static, 4)
  15     for (int i = 0; i < 2; i++)
  16       for (int j = 0; j < 2; j++)
  17         for (int k = 0; k < 2; k++)
  18           a[i][j][k] = i + j * 4 + k * 16;
  19   #pragma omp parallel
  20     {
  21       #pragma omp for collapse(2) reduction(|:l)
  22         for (i2 = 0; i2 < 2; i2++)
  23           for (int j = 0; j < 2; j++)
  24             for (int k = 0; k < 2; k++)
  25               if (a[i2][j][k] != i2 + j * 4 + k * 16)
  26                 l = 1;
  27     }
  28   if (l)
  29     abort ();
  30   return 0;
  31 }