libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-6.c

   1 /* Test of gang-private aggregate variable declared on loop directive, with
   2    broadcasting to partitioned workers.  */
   3
   4 /* { dg-additional-options "--param=openacc-kernels=decompose" } */
   5
   6 /* { dg-additional-options "-fopt-info-omp-all" }
   7    { dg-additional-options "-foffload=-fopt-info-omp-all" } */
   8
   9 /* { dg-additional-options "--param=openacc-privatization=noisy" }
  10    { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
  11    Prune a few: uninteresting:
  12    { dg-prune-output {note: variable 'D\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} } */
  13
  14 /* It's only with Tcl 8.5 (released in 2007) that "the variable 'varName'
  15    passed to 'incr' may be unset, and in that case, it will be set to [...]",
  16    so to maintain compatibility with earlier Tcl releases, we manually
  17    initialize counter variables:
  18    { dg-line l_dummy[variable c_compute 0 c_loop_i 0 c_loop_j 0 c_loop_k 0] }
  19    { dg-message "dummy" "" { target iN-VAl-Id } l_dummy } to avoid
  20    "WARNING: dg-line var l_dummy defined, but not used".  */
  21
  22 #include <assert.h>
  23
  24 typedef struct {
  25   int x, y, z;
  26   int attr[13];
  27 } vec3;
  28
  29 int
  30 main (int argc, char* argv[])
  31 {
  32   int i, arr[32 * 32];
  33   vec3 pt;
  34
  35   for (i = 0; i < 32 * 32; i++)
  36     arr[i] = i;
  37
  38   #pragma acc kernels copy(arr)
  39   {
  40     /* { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } .+1 } */
  41     #pragma acc loop gang private(pt) /* { dg-line l_loop_i[incr c_loop_i] } */
  42     /* { dg-note {variable 'pt' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
  43     /* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
  44     /* { dg-note {variable 'j' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
  45     for (i = 0; i < 32; i++)
  46       {
  47         pt.x = i;
  48         pt.y = i * 2;
  49         pt.z = i * 4;
  50         pt.attr[5] = i * 6;
  51
  52         #pragma acc loop worker /* { dg-line l_loop_j[incr c_loop_j] } */
  53         /* { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
  54         for (int j = 0; j < 32; j++)
  55           arr[i * 32 + j] += pt.x + pt.y + pt.z + pt.attr[5];
  56       }
  57     /* { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_loop_i$c_loop_i } */
  58   }
  59
  60   for (i = 0; i < 32 * 32; i++)
  61     assert (arr[i] == i + (i / 32) * 13);
  62
  63   return 0;
  64 }