Subversion Repositories openrisc

/* This plugin tests the correct operation of a PLUGIN_START_UNIT callback.

 * By the time a PLUGIN_START_UNIT callback is invoked, the frontend

 * initialization should have completed. At least the different *_type_nodes

 * should have been created. This plugin creates an artifical global

 * interger variable.

 *

*/

#include "gcc-plugin.h"

#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"

int plugin_is_GPL_compatible;

static tree fake_var = NULL;

static bool

gate_start_unit (void)

{

  return true;

}

static void start_unit_callback (void *gcc_data, void *user_data)

{

  if (integer_type_node) {

    fake_var = build_decl (UNKNOWN_LOCATION, VAR_DECL,

                           get_identifier ("_fake_var_"),

                           integer_type_node);

    TREE_PUBLIC (fake_var) = 1;

    DECL_ARTIFICIAL (fake_var) = 1;

  }

}

static void finish_unit_callback (void *gcc_data, void *user_data)

{

  if (fake_var == NULL) {

    printf ("fake_var not created \n");

    return;

  }

  if (TREE_CODE (fake_var) != VAR_DECL) {

    printf ("fake_var not a VAR_DECL \n");

    return;

  }

  if (TREE_CODE (TREE_TYPE (fake_var)) != INTEGER_TYPE) {

    printf ("fake_var not INTEGER_TYPE \n");

    return;

  }

  if (DECL_ARTIFICIAL (fake_var) == 0) {

    printf ("fake_var not ARTIFICIAL \n");

    return;

  }

}

int plugin_init (struct plugin_name_args *plugin_info,

                 struct plugin_gcc_version *version)

{

  register_callback ("start_unit", PLUGIN_START_UNIT, &start_unit_callback, NULL);

  register_callback ("finish_unit", PLUGIN_FINISH_UNIT, &finish_unit_callback, NULL);

  return 0;

}