예제 #1
0
tree
target_for_debug_bind (tree var)
{
  if (!MAY_HAVE_DEBUG_STMTS)
    return NULL_TREE;

  if (TREE_CODE (var) == SSA_NAME)
    {
      var = SSA_NAME_VAR (var);
      if (var == NULL_TREE)
	return NULL_TREE;
    }

  if ((TREE_CODE (var) != VAR_DECL
       || VAR_DECL_IS_VIRTUAL_OPERAND (var))
      && TREE_CODE (var) != PARM_DECL)
    return NULL_TREE;

  if (DECL_HAS_VALUE_EXPR_P (var))
    return target_for_debug_bind (DECL_VALUE_EXPR (var));

  if (DECL_IGNORED_P (var))
    return NULL_TREE;

  /* var-tracking only tracks registers.  */
  if (!is_gimple_reg_type (TREE_TYPE (var)))
    return NULL_TREE;

  return var;
}
예제 #2
0
static void
create_vop_var (struct function *fn)
{
  tree global_var;

  gcc_assert (fn->gimple_df->vop == NULL_TREE);

  global_var = build_decl (BUILTINS_LOCATION, VAR_DECL,
			   get_identifier (".MEM"),
			   void_type_node);
  DECL_ARTIFICIAL (global_var) = 1;
  DECL_IGNORED_P (global_var) = 1;
  TREE_READONLY (global_var) = 0;
  DECL_EXTERNAL (global_var) = 1;
  TREE_STATIC (global_var) = 1;
  TREE_USED (global_var) = 1;
  DECL_CONTEXT (global_var) = NULL_TREE;
  TREE_THIS_VOLATILE (global_var) = 0;
  TREE_ADDRESSABLE (global_var) = 0;
  VAR_DECL_IS_VIRTUAL_OPERAND (global_var) = 1;

  fn->gimple_df->vop = global_var;
}