Subversion Repositories openrisc

/* This plugin tests the GGC related plugin events.  */

/* { dg-options "-O" } */

#include "config.h"

#include "system.h"

#include "coretypes.h"

#include "tm.h"

#include "toplev.h"

#include "basic-block.h"

#include "gimple.h"

#include "tree.h"

#include "tree-pass.h"

#include "intl.h"

#include "gcc-plugin.h"

#include "plugin-version.h"

#include "diagnostic.h"

int plugin_is_GPL_compatible;

/* our callback is the same for all PLUGIN_GGC_START,

   PLUGIN_GGC_MARKING, PLUGIN_GGC_END events; it just increments the

   user_data which is an int */

static void increment_callback (void *gcc_data, void *user_data);

/* our counters are user_data */

static int our_ggc_start_counter;

static int our_ggc_end_counter;

static int our_ggc_marking_counter;

/* our empty GGC extra root table */

static const struct ggc_root_tab our_xtratab[] = {

  LAST_GGC_ROOT_TAB

};

/* The initialization routine exposed to and called by GCC. The spec of this

   function is defined in gcc/gcc-plugin.h.

   Note that this function needs to be named exactly "plugin_init".  */

int

plugin_init (struct plugin_name_args *plugin_info,

              struct plugin_gcc_version *version)

{

  const char *plugin_name = plugin_info->base_name;

  int argc = plugin_info->argc;

  int i = 0;

  struct plugin_argument *argv = plugin_info->argv;

  if (!plugin_default_version_check (version, &gcc_version))

    return 1;

  /* Process the plugin arguments. This plugin takes the following arguments:

     count-ggc-start count-ggc-end count-ggc-mark */

  for (i = 0; i < argc; ++i)

    {

      if (!strcmp (argv[i].key, "count-ggc-start"))

        {

          if (argv[i].value)

            warning (0, G_ ("option '-fplugin-arg-%s-count-ggc-start=%s'"

                            " ignored (superfluous '=%s')"),

                     plugin_name, argv[i].value, argv[i].value);

          else

            register_callback ("ggcplug",

                               PLUGIN_GGC_START,

                               increment_callback,

                               (void *) &our_ggc_start_counter);

        }

      else if (!strcmp (argv[i].key, "count-ggc-end"))

        {

          if (argv[i].value)

            warning (0, G_ ("option '-fplugin-arg-%s-count-ggc-end=%s'"

                            " ignored (superfluous '=%s')"),

                     plugin_name, argv[i].value, argv[i].value);

          else

            register_callback ("ggcplug",

                               PLUGIN_GGC_END,

                               increment_callback,

                               (void *) &our_ggc_end_counter);

        }

      else if (!strcmp (argv[i].key, "count-ggc-mark"))

        {

          if (argv[i].value)

            warning (0, G_ ("option '-fplugin-arg-%s-count-ggc-mark=%s'"

                            " ignored (superfluous '=%s')"),

                     plugin_name, argv[i].value, argv[i].value);

          else

            register_callback ("ggcplug",

                               PLUGIN_GGC_MARKING,

                               increment_callback,

                               (void *) &our_ggc_marking_counter);

        }

      else if (!strcmp (argv[i].key, "test-extra-root"))

        {

          if (argv[i].value)

            warning (0, G_ ("option '-fplugin-arg-%s-test-extra-root=%s'"

                            " ignored (superfluous '=%s')"),

                     plugin_name, argv[i].value, argv[i].value);

          else

            register_callback ("ggcplug",

                               PLUGIN_REGISTER_GGC_ROOTS,

                               NULL,

                               (void *) our_xtratab);

        }

    }

  /* plugin initialization succeeded */

  return 0;

 }

static void

increment_callback (void *gcc_data, void *user_data)

{

  int *usercountptr = (int *) user_data;

  gcc_assert (!gcc_data);

  gcc_assert (user_data);

  (*usercountptr)++;

}