/* Check offloaded function's attributes and classification for OpenACC
   routine.  */

/* { dg-additional-options "-O2" }
   { dg-additional-options "-fopt-info-optimized-omp" }
   { dg-additional-options "-fdump-tree-ompexp" }
   { dg-additional-options "-fdump-tree-oaccloops" } */

/* { dg-additional-options "-Wopenacc-parallelism" } for testing/documenting
   aspects of that functionality.  */

#define N 1024

extern unsigned int *__restrict a;
extern unsigned int *__restrict b;
extern unsigned int *__restrict c;
#pragma acc declare copyin (a, b) create (c)

#pragma acc routine worker
void ROUTINE ()
{
#pragma acc loop /* { dg-message "optimized: assigned OpenACC worker vector loop parallelism" } */
  for (unsigned int i = 0; i < N; i++)
    c[i] = a[i] + b[i];
}

/* Check the offloaded function's attributes.
   { dg-final { scan-tree-dump-times "(?n)__attribute__\\(\\(omp declare target \\(worker\\), oacc function \\(0 1, 1 0, 1 0\\)\\)\\)" 1 "ompexp" } } */

/* Check the offloaded function's classification and compute dimensions (will
   always be 1 x 1 x 1 for non-offloading compilation).
   { dg-final { scan-tree-dump-times "(?n)Function is OpenACC routine level 1" 1 "oaccloops" } }
   { dg-final { scan-tree-dump-times "(?n)OpenACC routine 'ROUTINE' doesn't have 'nohost' clause" 1 "oaccloops" { target c } } }
   { dg-final { scan-tree-dump-times "(?n)OpenACC routine 'void ROUTINE\\(\\)' doesn't have 'nohost' clause" 1 "oaccloops" { target { c++ && { ! offloading_enabled } } } } }
   { dg-final { scan-tree-dump-times "(?n)OpenACC routine 'ROUTINE\\(\\)' doesn't have 'nohost' clause" 1 "oaccloops" { target { c++ && offloading_enabled } } } }
   { dg-final { scan-tree-dump-times "(?n)OpenACC routine 'ROUTINE' not discarded" 1 "oaccloops" { target c } } }
   { dg-final { scan-tree-dump-times "(?n)OpenACC routine 'void ROUTINE\\(\\)' not discarded" 1 "oaccloops" { target { c++ && { ! offloading_enabled } } } } }
   { dg-final { scan-tree-dump-times "(?n)OpenACC routine 'ROUTINE\\(\\)' not discarded" 1 "oaccloops" { target { c++ && offloading_enabled } } } }
   TODO See PR101551 for 'offloading_enabled' differences.
   { dg-final { scan-tree-dump-times "(?n)Compute dimensions \\\[1, 1, 1\\\]" 1 "oaccloops" } }
   { dg-final { scan-tree-dump-times "(?n)__attribute__\\(\\(oacc function \\(0 1, 1 1, 1 1\\), omp declare target \\(worker\\), oacc function \\(0 1, 1 0, 1 0\\)\\)\\)" 1 "oaccloops" } }
   { dg-final { scan-tree-dump-times "(?n)void ROUTINE \\(\\)" 1 "oaccloops" } } */