libgomp/testsuite/libgomp.oacc-c-c++-common/loop-red-g-1.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 <stdio.h>
   8 #include <openacc.h>
   9 #include <gomp-constants.h>
  10
  11 #define N (32*32*32+17)
  12 int main ()
  13 {
  14   int ix;
  15   int ondev = 0;
  16   int t = 0, h = 0;
  17
  18 #pragma acc parallel num_gangs(32) copy(ondev)
  19   /* { dg-note {variable 'ix' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */
  20   {
  21 #pragma acc loop gang  reduction (+:t)
  22     /* { dg-note {variable 'ix' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */
  23     /* { dg-note {variable 'val' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-2 } */
  24     /* { dg-note {variable 'g' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-3 } */
  25     /* { dg-note {variable 'w' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-4 } */
  26     /* { dg-note {variable 'v' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-5 } */
  27     for (unsigned ix = 0; ix < N; ix++)
  28       {
  29         int val = ix;
  30
  31         if (acc_on_device (acc_device_not_host))
  32           {
  33             int g, w, v;
  34
  35             g = __builtin_goacc_parlevel_id (GOMP_DIM_GANG);
  36             w = __builtin_goacc_parlevel_id (GOMP_DIM_WORKER);
  37             v = __builtin_goacc_parlevel_id (GOMP_DIM_VECTOR);
  38             val = (g << 16) | (w << 8) | v;
  39             ondev = 1;
  40           }
  41         t += val;
  42       }
  43   }
  44
  45   for (ix = 0; ix < N; ix++)
  46     {
  47       int val = ix;
  48       if(ondev)
  49         {
  50           int g = ix / ((N + 31) / 32);
  51           int w = 0;
  52           int v = 0;
  53
  54           val = (g << 16) | (w << 8) | v;
  55         }
  56       h += val;
  57     }
  58   if (t != h)
  59     {
  60       printf ("t=%x expected %x\n", t, h);
  61       return 1;
  62     }
  63
  64   return 0;
  65 }