1  /* Verify that a simple, explicit acc loop reduction works inside
       2   a kernels region.  */
       3  
       4  /* { dg-additional-options "--param=openacc-kernels=decompose" } */
       5  
       6  /* { dg-additional-options "-fopt-info-all-omp" }
       7     { dg-additional-options "-foffload=-fopt-info-all-omp" } */
       8  
       9  /* { dg-additional-options "--param=openacc-privatization=noisy" }
      10     { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
      11     Prune a few: uninteresting, and potentially varying depending on GCC configuration (data types):
      12     { dg-prune-output {note: variable 'D\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} } */
      13  
      14  #include <stdlib.h>
      15  
      16  #define N 100
      17  
      18  int
      19  main ()
      20  {
      21    int i, red = 0;
      22  
      23  #pragma acc kernels /* { dg-line l_compute1 } */
      24    /* { dg-note {OpenACC 'kernels' decomposition: variable 'red' in 'copy' clause requested to be made addressable} {} { target *-*-* } l_compute1 }
      25       { dg-note {variable 'red' made addressable} {} { target *-*-* } l_compute1 } */
      26    {
      27  #pragma acc loop reduction (+:red) /* { dg-line l_loop_i1 } */
      28      /* { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } l_loop_i1 } */
      29      /* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i1 } */
      30      /* { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_loop_i1 } */
      31    for (i = 0; i < N; i++)
      32      red++;
      33    }
      34  
      35    if (red != N)
      36      abort ();
      37  
      38    return 0;
      39  }