libgomp/testsuite/libgomp.oacc-c-c++-common/loop-red-w-2.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 /* { dg-additional-options "-Wopenacc-parallelism" } for testing/documenting
   8    aspects of that functionality.  */
   9
  10 #include <stdio.h>
  11 #include <openacc.h>
  12 #include <gomp-constants.h>
  13
  14 #define N (32*32*32+17)
  15 int main ()
  16 {
  17   int ix;
  18   int ondev = 0;
  19   int q = 0,  h = 0;
  20   int workersize;
  21
  22 #define NW 32
  23 #define VL 32
  24 #pragma acc parallel num_workers(NW) vector_length(VL) \
  25             copy(q) copy(ondev)
  26   /* { dg-note {variable 't' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-2 } */
  27   /* { dg-note {variable 'ix' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-3 } */
  28   /* { dg-warning "region is vector partitioned but does not contain vector partitioned code" "" { target *-*-* } .-4 } */
  29   {
  30     int t = q;
  31
  32 #pragma acc loop worker reduction(+:t)
  33     /* { dg-note {variable 'ix' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */
  34     /* { dg-note {variable 'val' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-2 } */
  35     /* { dg-note {variable 'g' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-3 } */
  36     /* { dg-note {variable 'w' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-4 } */
  37     /* { dg-note {variable 'v' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-5 } */
  38     for (unsigned ix = 0; ix < N; ix++)
  39       {
  40         int val = ix;
  41
  42         if (acc_on_device (acc_device_not_host))
  43           {
  44             int g, w, v;
  45
  46             g = __builtin_goacc_parlevel_id (GOMP_DIM_GANG);
  47             w = __builtin_goacc_parlevel_id (GOMP_DIM_WORKER);
  48             v = __builtin_goacc_parlevel_id (GOMP_DIM_VECTOR);
  49             val = (g << 16) | (w << 8) | v;
  50             ondev = 1;
  51           }
  52         t += val;
  53       }
  54     q = t;
  55   }
  56   workersize = NW;
  57 #ifdef ACC_DEVICE_TYPE_radeon
  58   /* AMD GCN has an upper limit of 'num_workers(16)'.  */
  59   if (workersize > 16)
  60     workersize = 16;
  61 #endif
  62
  63   for (ix = 0; ix < N; ix++)
  64     {
  65       int val = ix;
  66       if(ondev)
  67         {
  68           int g = 0;
  69           int w = ix % workersize;
  70           int v = 0;
  71
  72           val = (g << 16) | (w << 8) | v;
  73         }
  74       h += val;
  75     }
  76   if (q != h)
  77     {
  78       printf ("t=%x expected %x\n", q, h);
  79       return 1;
  80     }
  81
  82   return 0;
  83 }