starpu-max/gcc-plugin/tests/pointer-tasks.c

/* GCC-StarPU
   Copyright (C) 2011 Institut National de Recherche en Informatique et Automatique

   GCC-StarPU is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   GCC-StarPU is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GCC-StarPU.  If not, see <http://www.gnu.org/licenses/>.  */

#undef NDEBUG

#include <stdlib.h>
#include <assert.h>
#include <string.h>


/* The task under test.  */

static void my_pointer_task (int *x, long long *y) __attribute__ ((task));

static void my_pointer_task_cpu (int *x, long long *y)
  __attribute__ ((task_implementation ("cpu", my_pointer_task), noinline));

static int implementations_called;

/* The input arguments.  */
static int pointer_arg1[] = { 42, 1, 2, 3, 4, 5 };
static long long *pointer_arg2;

static void
my_pointer_task_cpu (int *x, long long *y)
{
  implementations_called |= STARPU_CPU;
  assert (x == pointer_arg1);
  assert (y == pointer_arg2);
}



int
main (int argc, char *argv[])
{
#define COUNT 100
  pointer_arg2 = malloc (COUNT * sizeof *pointer_arg2);
  memset (pointer_arg2, 0x77, COUNT * sizeof *pointer_arg2);

  /* FIXME: Eventually remove calls to libstarpu and use pragmas or generated
     code.  */

  starpu_init (NULL);

  /* Register POINTER_ARG1 and POINTER_ARG2
     FIXME: Use a pragma when available.  */
  starpu_data_handle handle;
  starpu_vector_data_register (&handle, 0, (uintptr_t) pointer_arg1,
			       sizeof pointer_arg1 / sizeof pointer_arg1[0],
			       sizeof pointer_arg1[0]);
  starpu_vector_data_register (&handle, 0, (uintptr_t) pointer_arg2,
			       COUNT, sizeof *pointer_arg2);

  /* Invoke the task, which should make sure it gets called with
     EXPECTED.  */
  my_pointer_task (pointer_arg1, pointer_arg2);

#pragma starpu wait

  assert (implementations_called == STARPU_CPU);

  starpu_shutdown ();

  free (pointer_arg2);

  return EXIT_SUCCESS;
}