libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-5.c

   1 /* { dg-additional-options "-fopt-info-note-omp" }
   2    { dg-additional-options "--param=openacc-privatization=noisy" }
   3    { dg-additional-options "-foffload=-fopt-info-note-omp" }
   4    { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
   5    for testing/documenting aspects of that functionality.  */
   6
   7 #include <assert.h>
   8
   9 /* Test of gang-private array variable declared on loop directive, with
  10    broadcasting to partitioned workers.  */
  11
  12 int
  13 main (int argc, char* argv[])
  14 {
  15   int x[8], i, arr[32 * 32];
  16
  17   for (i = 0; i < 32 * 32; i++)
  18     arr[i] = i;
  19
  20   #pragma acc kernels copy(arr)
  21   {
  22     #pragma acc loop gang(num:32) private(x)
  23     /* { dg-note {variable 'x' in 'private' clause is candidate for adjusting OpenACC privatization level} "" { target *-*-* } .-1 } */
  24     /* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-2 } */
  25     /* { dg-note {variable 'j' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-3 } */
  26     for (i = 0; i < 32; i++)
  27       {
  28         for (int j = 0; j < 8; j++)
  29           x[j] = j * 2;
  30
  31         #pragma acc loop worker(num:32)
  32         /* { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */
  33         for (int j = 0; j < 32; j++)
  34           arr[i * 32 + j] += x[j % 8];
  35       }
  36   }
  37
  38   for (i = 0; i < 32 * 32; i++)
  39     assert (arr[i] == i + (i % 8) * 2);
  40
  41   return 0;
  42 }