gcc/testsuite/c-c++-common/goacc/kernels-loop-3.c

   1 /* { dg-additional-options "-O2" } */
   2 /* { dg-additional-options "-fdump-tree-parloops1-all" } */
   3 /* { dg-additional-options "-fdump-tree-optimized" } */
   4
   5 #include <stdlib.h>
   6
   7 #define N (1024 * 512)
   8 #define COUNTERTYPE unsigned int
   9
  10 int
  11 main (void)
  12 {
  13   unsigned int i;
  14
  15   unsigned int *__restrict c;
  16
  17   c = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
  18
  19   for (COUNTERTYPE i = 0; i < N; i++)
  20     c[i] = i * 2;
  21
  22 #pragma acc kernels copy (c[0:N])
  23   {
  24 #ifdef ACC_LOOP
  25     #pragma acc loop
  26 #endif
  27     for (COUNTERTYPE ii = 0; ii < N; ii++)
  28       c[ii] = c[ii] + ii + 1;
  29   }
  30
  31   for (COUNTERTYPE i = 0; i < N; i++)
  32     if (c[i] != i * 2 + i + 1)
  33       abort ();
  34
  35   free (c);
  36
  37   return 0;
  38 }
  39
  40 /* Check that only one loop is analyzed, and that it can be parallelized.  */
  41 /* { dg-final { scan-tree-dump-times "SUCCESS: may be parallelized" 1 "parloops1" } } */
  42 /* { dg-final { scan-tree-dump-times "(?n)__attribute__\\(\\(oacc kernels parallelized, oacc function \\(, , \\), oacc kernels, omp target entrypoint\\)\\)" 1 "parloops1" } } */
  43 /* { dg-final { scan-tree-dump-not "FAILED:" "parloops1" } } */
  44
  45 /* Check that the loop has been split off into a function.  */
  46 /* { dg-final { scan-tree-dump-times "(?n);; Function .*main._omp_fn.0" 1 "optimized" } } */