void
compile_resource_data (const char *name, const char *buffer, int length)
{
  tree rtype, field = NULL_TREE, data_type, rinit, data, decl;
  char buf[60];

  data_type = build_prim_array_type (unsigned_byte_type_node,
				     strlen (name) + length);
  rtype = make_node (RECORD_TYPE);
  PUSH_FIELD (rtype, field, "name_length", unsigned_int_type_node);
  PUSH_FIELD (rtype, field, "resource_length", unsigned_int_type_node);
  PUSH_FIELD (rtype, field, "data", data_type);
  FINISH_RECORD (rtype);
  START_RECORD_CONSTRUCTOR (rinit, rtype);
  PUSH_FIELD_VALUE (rinit, "name_length", 
		    build_int_cst (NULL_TREE, strlen (name)));
  PUSH_FIELD_VALUE (rinit, "resource_length", 
		    build_int_cst (NULL_TREE, length));
  data = build_string (strlen(name) + length, buffer);
  TREE_TYPE (data) = data_type;
  PUSH_FIELD_VALUE (rinit, "data", data);
  FINISH_RECORD_CONSTRUCTOR (rinit);
  TREE_CONSTANT (rinit) = 1;
  TREE_INVARIANT (rinit) = 1;

  /* Generate a unique-enough identifier.  */
  sprintf (buf, "_Jr%d", ++Jr_count);

  decl = build_decl (VAR_DECL, get_identifier (buf), rtype);
  TREE_STATIC (decl) = 1;
  DECL_ARTIFICIAL (decl) = 1;
  DECL_IGNORED_P (decl) = 1;
  TREE_READONLY (decl) = 1;
  TREE_THIS_VOLATILE (decl) = 0;
  DECL_INITIAL (decl) = rinit;
  layout_decl (decl, 0);
  pushdecl (decl);
  rest_of_decl_compilation (decl, global_bindings_p (), 0);
  make_decl_rtl (decl);
  assemble_variable (decl, 1, 0, 0);

  resources = tree_cons (NULL_TREE, decl, resources);
}
Example #2
0
void
compile_resource_data (const char *name, const char *buffer, int length)
{
  tree rtype, field = NULL_TREE, data_type, rinit, data, decl;
  VEC(constructor_elt,gc) *v = NULL;

  data_type = build_prim_array_type (unsigned_byte_type_node,
				     strlen (name) + length);
  rtype = make_node (RECORD_TYPE);
  PUSH_FIELD (input_location,
	      rtype, field, "name_length", unsigned_int_type_node);
  PUSH_FIELD (input_location,
	      rtype, field, "resource_length", unsigned_int_type_node);
  PUSH_FIELD (input_location, rtype, field, "data", data_type);
  FINISH_RECORD (rtype);
  START_RECORD_CONSTRUCTOR (v, rtype);
  PUSH_FIELD_VALUE (v, "name_length", 
		    build_int_cst (NULL_TREE, strlen (name)));
  PUSH_FIELD_VALUE (v, "resource_length", 
		    build_int_cst (NULL_TREE, length));
  data = build_string (strlen(name) + length, buffer);
  TREE_TYPE (data) = data_type;
  PUSH_FIELD_VALUE (v, "data", data);
  FINISH_RECORD_CONSTRUCTOR (rinit, v, rtype);
  TREE_CONSTANT (rinit) = 1;

  decl = build_decl (input_location,
		     VAR_DECL, java_mangle_resource_name (name), rtype);
  TREE_STATIC (decl) = 1;
  TREE_PUBLIC (decl) = 1;
  java_hide_decl (decl);
  DECL_ARTIFICIAL (decl) = 1;
  DECL_IGNORED_P (decl) = 1;
  TREE_READONLY (decl) = 1;
  TREE_THIS_VOLATILE (decl) = 0;
  DECL_INITIAL (decl) = rinit;
  layout_decl (decl, 0);
  pushdecl (decl);
  rest_of_decl_compilation (decl, global_bindings_p (), 0);
  varpool_finalize_decl (decl);

  VEC_safe_push (tree, gc, resources, decl);
}
Example #3
0
/*
 *	Create a DECL_... node of code CODE, name NAME
 *	and data type TYPE. We do NOT enter this node
 *	in any sort of symbol table.
 *
 *	layout_decl is used to set up the decl's storage layout.
 *	Other slots are initialized to 0 or null pointers.
 */
tree
build_decl (enum tree_code code, tree name, tree type)
{
	register tree	t;

	t = make_node (code);

#if (0)	/*************************************/
	/*
	 *	That is not done, deliberately, so that
	 *	having error_mark_node as the type can
	 *	suppress useless errors in the use of
	 *	this variable.
	 */
	if (type == error_mark_node)
		type = integer_type_node;
#endif	/*************************************/

	DECL_NAME (t) = name;

	if (name)
	{
		DECL_PRINT_NAME (t) = IDENTIFIER_POINTER (name);
		DECL_ASSEMBLER_NAME (t) = IDENTIFIER_POINTER (name);
	}

	TREE_TYPE (t) = type;
	DECL_ARGUMENTS (t) = NULL_TREE;
	DECL_INITIAL (t) = NULL_TREE;

	if (code == VAR_DECL || code == PARM_DECL || code == RESULT_DECL)
		layout_decl (t, 0);
	elif (code == FUNCTION_DECL)
		DECL_MODE (t) = FUNCTION_MODE;

	return (t);

}	/* end build_decl */
Example #4
0
static tree
build_common_decl (gfc_common_head *com, tree union_type, bool is_init)
{
  gfc_symbol *common_sym;
  tree decl;

  /* Create a namespace to store symbols for common blocks.  */
  if (gfc_common_ns == NULL)
    gfc_common_ns = gfc_get_namespace (NULL, 0);

  gfc_get_symbol (com->name, gfc_common_ns, &common_sym);
  decl = common_sym->backend_decl;

  /* Update the size of this common block as needed.  */
  if (decl != NULL_TREE)
    {
      tree size = TYPE_SIZE_UNIT (union_type);

      /* Named common blocks of the same name shall be of the same size
	 in all scoping units of a program in which they appear, but
	 blank common blocks may be of different sizes.  */
      if (!tree_int_cst_equal (DECL_SIZE_UNIT (decl), size)
	  && strcmp (com->name, BLANK_COMMON_NAME))
	gfc_warning ("Named COMMON block '%s' at %L shall be of the "
		     "same size as elsewhere (%lu vs %lu bytes)", com->name,
		     &com->where,
		     (unsigned long) TREE_INT_CST_LOW (size),
		     (unsigned long) TREE_INT_CST_LOW (DECL_SIZE_UNIT (decl)));

      if (tree_int_cst_lt (DECL_SIZE_UNIT (decl), size))
	{
	  DECL_SIZE (decl) = TYPE_SIZE (union_type);
	  DECL_SIZE_UNIT (decl) = size;
	  DECL_MODE (decl) = TYPE_MODE (union_type);
	  TREE_TYPE (decl) = union_type;
	  layout_decl (decl, 0);
	}
     }

  /* If this common block has been declared in a previous program unit,
     and either it is already initialized or there is no new initialization
     for it, just return.  */
  if ((decl != NULL_TREE) && (!is_init || DECL_INITIAL (decl)))
    return decl;

  /* If there is no backend_decl for the common block, build it.  */
  if (decl == NULL_TREE)
    {
      decl = build_decl (input_location,
			 VAR_DECL, get_identifier (com->name), union_type);
      gfc_set_decl_assembler_name (decl, gfc_sym_mangled_common_id (com));
      TREE_PUBLIC (decl) = 1;
      TREE_STATIC (decl) = 1;
      DECL_IGNORED_P (decl) = 1;
      if (!com->is_bind_c)
	DECL_ALIGN (decl) = BIGGEST_ALIGNMENT;
      else
        {
	  /* Do not set the alignment for bind(c) common blocks to
	     BIGGEST_ALIGNMENT because that won't match what C does.  Also,
	     for common blocks with one element, the alignment must be
	     that of the field within the common block in order to match
	     what C will do.  */
	  tree field = NULL_TREE;
	  field = TYPE_FIELDS (TREE_TYPE (decl));
	  if (DECL_CHAIN (field) == NULL_TREE)
	    DECL_ALIGN (decl) = TYPE_ALIGN (TREE_TYPE (field));
	}
      DECL_USER_ALIGN (decl) = 0;
      GFC_DECL_COMMON_OR_EQUIV (decl) = 1;

      gfc_set_decl_location (decl, &com->where);

      if (com->threadprivate)
	DECL_TLS_MODEL (decl) = decl_default_tls_model (decl);

      /* Place the back end declaration for this common block in
         GLOBAL_BINDING_LEVEL.  */
      common_sym->backend_decl = pushdecl_top_level (decl);
    }

  /* Has no initial values.  */
  if (!is_init)
    {
      DECL_INITIAL (decl) = NULL_TREE;
      DECL_COMMON (decl) = 1;
      DECL_DEFER_OUTPUT (decl) = 1;
    }
  else
    {
      DECL_INITIAL (decl) = error_mark_node;
      DECL_COMMON (decl) = 0;
      DECL_DEFER_OUTPUT (decl) = 0;
    }
  return decl;
}
Example #5
0
tree
prepare_eh_table_type (tree type)
{
  tree exp;
  tree *slot;
  const char *name;
  char *buf;
  tree decl;
  tree utf8_ref;

  /* The "type" (match_info) in a (Java) exception table is a pointer to:
   * a) NULL - meaning match any type in a try-finally.
   * b) a pointer to a pointer to a class.
   * c) a pointer to a pointer to a utf8_ref.  The pointer is
   * rewritten to point to the appropriate class.  */

  if (type == NULL_TREE)
    return NULL_TREE;

  if (TYPE_TO_RUNTIME_MAP (output_class) == NULL)
    TYPE_TO_RUNTIME_MAP (output_class) = java_treetreehash_create (10);
  
  slot = java_treetreehash_new (TYPE_TO_RUNTIME_MAP (output_class), type);
  if (*slot != NULL)
    return TREE_VALUE (*slot);

  if (is_compiled_class (type) && !flag_indirect_dispatch)
    {
      name = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
      buf = (char *) alloca (strlen (name) + 5);
      sprintf (buf, "%s_ref", name);
      decl = build_decl (input_location,
			 VAR_DECL, get_identifier (buf), ptr_type_node);
      TREE_STATIC (decl) = 1;
      DECL_ARTIFICIAL (decl) = 1;
      DECL_IGNORED_P (decl) = 1;
      TREE_READONLY (decl) = 1;
      TREE_THIS_VOLATILE (decl) = 0;
      DECL_INITIAL (decl) = build_class_ref (type);
      layout_decl (decl, 0);
      pushdecl (decl);
      exp = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (decl)), decl);
    }
  else
    {
      utf8_ref = build_utf8_ref (DECL_NAME (TYPE_NAME (type)));
      name = IDENTIFIER_POINTER (DECL_NAME (TREE_OPERAND (utf8_ref, 0)));
      buf = (char *) alloca (strlen (name) + 5);
      sprintf (buf, "%s_ref", name);
      decl = build_decl (input_location,
			 VAR_DECL, get_identifier (buf), utf8const_ptr_type);
      TREE_STATIC (decl) = 1;
      DECL_ARTIFICIAL (decl) = 1;
      DECL_IGNORED_P (decl) = 1;
      TREE_READONLY (decl) = 1;
      TREE_THIS_VOLATILE (decl) = 0;
      layout_decl (decl, 0);
      pushdecl (decl);
      exp = build1 (ADDR_EXPR, build_pointer_type (utf8const_ptr_type), decl);
      CONSTRUCTOR_APPEND_ELT (TYPE_CATCH_CLASSES (output_class),
			      NULL_TREE,
			      make_catch_class_record (exp, utf8_ref));
    }

  exp = convert (ptr_type_node, exp);

  *slot = tree_cons (type, exp, NULL_TREE);

  return exp;
}
Example #6
0
tree
decl_attributes (tree *node, tree attributes, int flags)
{
  tree a;
  tree returned_attrs = NULL_TREE;

  if (!attributes_initialized)
    init_attributes ();

  targetm.insert_attributes (*node, &attributes);

  for (a = attributes; a; a = TREE_CHAIN (a))
    {
      tree name = TREE_PURPOSE (a);
      tree args = TREE_VALUE (a);
      tree *anode = node;
      const struct attribute_spec *spec = NULL;
      bool no_add_attrs = 0;
      tree fn_ptr_tmp = NULL_TREE;
      size_t i;

      for (i = 0; i < ARRAY_SIZE (attribute_tables); i++)
	{
	  int j;

	  for (j = 0; attribute_tables[i][j].name != NULL; j++)
	    {
	      if (is_attribute_p (attribute_tables[i][j].name, name))
		{
		  spec = &attribute_tables[i][j];
		  break;
		}
	    }
	  if (spec != NULL)
	    break;
	}

      if (spec == NULL)
	{
	  warning ("%qs attribute directive ignored",
		   IDENTIFIER_POINTER (name));
	  continue;
	}
      else if (list_length (args) < spec->min_length
	       || (spec->max_length >= 0
		   && list_length (args) > spec->max_length))
	{
	  error ("wrong number of arguments specified for %qs attribute",
		 IDENTIFIER_POINTER (name));
	  continue;
	}

      if (spec->decl_required && !DECL_P (*anode))
	{
	  if (flags & ((int) ATTR_FLAG_DECL_NEXT
		       | (int) ATTR_FLAG_FUNCTION_NEXT
		       | (int) ATTR_FLAG_ARRAY_NEXT))
	    {
	      /* Pass on this attribute to be tried again.  */
	      returned_attrs = tree_cons (name, args, returned_attrs);
	      continue;
	    }
	  else
	    {
	      warning ("%qs attribute does not apply to types",
		       IDENTIFIER_POINTER (name));
	      continue;
	    }
	}

      /* If we require a type, but were passed a decl, set up to make a
	 new type and update the one in the decl.  ATTR_FLAG_TYPE_IN_PLACE
	 would have applied if we'd been passed a type, but we cannot modify
	 the decl's type in place here.  */
      if (spec->type_required && DECL_P (*anode))
	{
	  anode = &TREE_TYPE (*anode);
	  flags &= ~(int) ATTR_FLAG_TYPE_IN_PLACE;
	}

      if (spec->function_type_required && TREE_CODE (*anode) != FUNCTION_TYPE
	  && TREE_CODE (*anode) != METHOD_TYPE)
	{
	  if (TREE_CODE (*anode) == POINTER_TYPE
	      && (TREE_CODE (TREE_TYPE (*anode)) == FUNCTION_TYPE
		  || TREE_CODE (TREE_TYPE (*anode)) == METHOD_TYPE))
	    {
	      /* OK, this is a bit convoluted.  We can't just make a copy
		 of the pointer type and modify its TREE_TYPE, because if
		 we change the attributes of the target type the pointer
		 type needs to have a different TYPE_MAIN_VARIANT.  So we
		 pull out the target type now, frob it as appropriate, and
		 rebuild the pointer type later.

	         This would all be simpler if attributes were part of the
	         declarator, grumble grumble.  */
	      fn_ptr_tmp = TREE_TYPE (*anode);
	      anode = &fn_ptr_tmp;
	      flags &= ~(int) ATTR_FLAG_TYPE_IN_PLACE;
	    }
	  else if (flags & (int) ATTR_FLAG_FUNCTION_NEXT)
	    {
	      /* Pass on this attribute to be tried again.  */
	      returned_attrs = tree_cons (name, args, returned_attrs);
	      continue;
	    }

	  if (TREE_CODE (*anode) != FUNCTION_TYPE
	      && TREE_CODE (*anode) != METHOD_TYPE)
	    {
	      warning ("%qs attribute only applies to function types",
		       IDENTIFIER_POINTER (name));
	      continue;
	    }
	}

      if (spec->handler != NULL)
	returned_attrs = chainon ((*spec->handler) (anode, name, args,
						    flags, &no_add_attrs),
				  returned_attrs);

      /* Layout the decl in case anything changed.  */
      if (spec->type_required && DECL_P (*node)
	  && (TREE_CODE (*node) == VAR_DECL
	      || TREE_CODE (*node) == PARM_DECL
	      || TREE_CODE (*node) == RESULT_DECL))
	{
	  /* Force a recalculation of mode and size.  */
	  DECL_MODE (*node) = VOIDmode;
	  DECL_SIZE (*node) = 0;

	  layout_decl (*node, 0);
	}

      if (!no_add_attrs)
	{
	  tree old_attrs;
	  tree a;

	  if (DECL_P (*anode))
	    old_attrs = DECL_ATTRIBUTES (*anode);
	  else
	    old_attrs = TYPE_ATTRIBUTES (*anode);

	  for (a = lookup_attribute (spec->name, old_attrs);
	       a != NULL_TREE;
	       a = lookup_attribute (spec->name, TREE_CHAIN (a)))
	    {
	      if (simple_cst_equal (TREE_VALUE (a), args) == 1)
		break;
	    }

	  if (a == NULL_TREE)
	    {
	      /* This attribute isn't already in the list.  */
	      if (DECL_P (*anode))
		DECL_ATTRIBUTES (*anode) = tree_cons (name, args, old_attrs);
	      else if (flags & (int) ATTR_FLAG_TYPE_IN_PLACE)
		{
		  TYPE_ATTRIBUTES (*anode) = tree_cons (name, args, old_attrs);
		  /* If this is the main variant, also push the attributes
		     out to the other variants.  */
		  if (*anode == TYPE_MAIN_VARIANT (*anode))
		    {
		      tree variant;
		      for (variant = *anode; variant;
			   variant = TYPE_NEXT_VARIANT (variant))
			{
			  if (TYPE_ATTRIBUTES (variant) == old_attrs)
			    TYPE_ATTRIBUTES (variant)
			      = TYPE_ATTRIBUTES (*anode);
			  else if (!lookup_attribute
				   (spec->name, TYPE_ATTRIBUTES (variant)))
			    TYPE_ATTRIBUTES (variant) = tree_cons
			      (name, args, TYPE_ATTRIBUTES (variant));
			}
		    }
		}
	      else
		*anode = build_type_attribute_variant (*anode,
						       tree_cons (name, args,
								  old_attrs));
	    }
	}

      if (fn_ptr_tmp)
	{
	  /* Rebuild the function pointer type and put it in the
	     appropriate place.  */
	  fn_ptr_tmp = build_pointer_type (fn_ptr_tmp);
	  if (DECL_P (*node))
	    TREE_TYPE (*node) = fn_ptr_tmp;
	  else
	    {
	      gcc_assert (TREE_CODE (*node) == POINTER_TYPE);
	      *node = fn_ptr_tmp;
	    }
	}
    }

  return returned_attrs;
}
Example #7
0
tree 
tree_code_create_variable (unsigned int storage_class,
                               unsigned char* chars,
                               unsigned int length,
                               unsigned int expression_type,
                               tree init,
                               unsigned char* filename,
                               int lineno)
{
  tree var_type;
  tree var_id;
  tree var_decl;

  /* 1. Build the type.  */
  var_type = get_type_for_numeric_type (expression_type);

  /* 2. Build the name.  */
  if (chars[length] != 0)
    abort (); /* Should be null terminated.  */

  var_id = get_identifier ((const char*)chars);

  /* 3. Build the decl and set up init.  */
  var_decl = build_decl (VAR_DECL, var_id, var_type);

  /* 3a. Initialization.  */
  if (init)
    DECL_INITIAL (var_decl) = build1 (CONVERT_EXPR, var_type, init);
  else
    DECL_INITIAL (var_decl) = NULL_TREE;
      
  /* 4. Compute size etc.  */
  layout_decl (var_decl, 0);
      
  if (TYPE_SIZE (var_type) == 0)
    abort (); /* Did not calculate size.  */

  DECL_CONTEXT (var_decl) = current_function_decl;

  DECL_SOURCE_FILE (var_decl) = (const char *)filename;
  DECL_SOURCE_LINE (var_decl) = lineno;

  /* Set the storage mode and whether only visible in the same file.  */
  switch (storage_class)
    {
    case STATIC_STORAGE:
      TREE_STATIC (var_decl) = 1;
      TREE_PUBLIC (var_decl) = 0;
      break;

    case AUTOMATIC_STORAGE:
      TREE_STATIC (var_decl) = 0;
      TREE_PUBLIC (var_decl) = 0;
      break;
      
    case EXTERNAL_DEFINITION_STORAGE:
      TREE_STATIC (var_decl) = 0; 
      TREE_PUBLIC (var_decl) = 1;
      break;
      
    case EXTERNAL_REFERENCE_STORAGE:
      DECL_EXTERNAL (var_decl) = 1;
      TREE_PUBLIC (var_decl) = 0;
      break;
      
    default:
      abort ();
    }
      
  /* This should really only be set if the variable is used.  */
  TREE_USED (var_decl) = 1;
      
  /* Expand declaration and initial value if any.  */
  
  if (TREE_STATIC (var_decl)) 
    rest_of_decl_compilation (var_decl, 0, 0, 0);
  else
    {
      expand_decl (var_decl);
      if (DECL_INITIAL (var_decl))
        expand_decl_init (var_decl);
    }
  
  return pushdecl (copy_node (var_decl));
  
}
Example #8
0
/* Output code for start of function; the decl of the function is in
    PREV_SAVED (as created by tree_code_create_function_prototype),
    the function is at line number LINENO in file FILENAME.  The
    parameter details are in the lists PARMS. Returns nothing.  */
void 
tree_code_create_function_initial (tree prev_saved, 
                                  unsigned char* filename,
                                  int lineno,
                                  struct prod_token_parm_item* parms)
{
  tree fn_decl;
  tree param_decl;
  tree next_param;
  tree first_param;
  tree parm_decl;
  tree parm_list;
  tree resultdecl;
  struct prod_token_parm_item* this_parm; 
  struct prod_token_parm_item* parm;

  fn_decl = prev_saved;
  if (!fn_decl)
    abort ();

  /* Output message if not -quiet.  */
  announce_function (fn_decl);

  /* This has something to do with forcing output also.  */
  pushdecl (fn_decl);

  /* Set current function for error msgs etc.  */
  current_function_decl = fn_decl;
  DECL_INITIAL (fn_decl) = error_mark_node;

  DECL_SOURCE_FILE (fn_decl) = (const char *)filename;
  DECL_SOURCE_LINE (fn_decl) = lineno;

  /* Prepare creation of rtl for a new function.  */
  
  resultdecl = DECL_RESULT (fn_decl) = build_decl (RESULT_DECL, NULL_TREE, TREE_TYPE (TREE_TYPE (fn_decl)));
  DECL_CONTEXT (DECL_RESULT (fn_decl)) = fn_decl;
  DECL_SOURCE_FILE (resultdecl) = (const char *)filename;
  DECL_SOURCE_LINE (resultdecl) = lineno;
  /* Work out the size. ??? is this needed.  */
  layout_decl (DECL_RESULT (fn_decl), 0);

  /* Make the argument variable decls.  */
  parm_list = NULL_TREE;
  for (parm = parms; parm; parm = parm->tp.par.next)
    {
      parm_decl = build_decl (PARM_DECL, get_identifier 
                              ((const char*) (parm->tp.par.variable_name)), 
                              get_type_for_numeric_type (parm->type));
      
      /* Some languages have different nominal and real types.  */
      DECL_ARG_TYPE (parm_decl) = TREE_TYPE (parm_decl);
      if (!DECL_ARG_TYPE (parm_decl))
        abort ();
      if (!fn_decl)
        abort ();
      DECL_CONTEXT (parm_decl) = fn_decl;
      DECL_SOURCE_FILE (parm_decl) = (const char *)filename;
      DECL_SOURCE_LINE (parm_decl) = lineno;
      parm_list = chainon (parm_decl, parm_list);
    }

  /* Back into reverse order as the back end likes them.  */
  parm_list = nreverse (parm_list);
  
  DECL_ARGUMENTS (fn_decl) = parm_list;

  /* Save the decls for use when the args are referred to.  */
  for (param_decl = DECL_ARGUMENTS (fn_decl),
         this_parm = parms;
       param_decl;
       param_decl = TREE_CHAIN (param_decl),
         this_parm = this_parm->tp.par.next)
    {
      if (!this_parm)
        abort (); /* Too few.  */
      *this_parm->tp.par.where_to_put_var_tree = param_decl;
    }
  if (this_parm)
    abort (); /* Too many.  */

  /* Output the decl rtl (not the rtl for the function code).  ???.
     If the function is not defined in this file, when should you
     execute this?  */
  make_decl_rtl (fn_decl, NULL);

  /* Use filename/lineno from above.  */
  init_function_start (fn_decl, (const char *)filename, lineno); 
  
  /* Create rtl for startup code of function, such as saving registers.  */
  
  expand_function_start (fn_decl, 0);
  
  /* Function.c requires a push at the start of the function. that
     looks like a bug to me but let's make it happy.  */
  
  (*lang_hooks.decls.pushlevel) (0);
  
  /* Create rtl for the start of a new scope.  */
  
  expand_start_bindings (2);

  /* Put the parameters into the symbol table.  */
  
  for (first_param = param_decl = nreverse (DECL_ARGUMENTS (fn_decl));
       param_decl;
       param_decl = next_param)
    {
      next_param = TREE_CHAIN (param_decl);
      TREE_CHAIN (param_decl) = NULL;
      /* layout_decl (param_decl, 0);  Already done in build_decl tej 13/4/2002.  */
      pushdecl (param_decl);
      if (DECL_CONTEXT (param_decl) != current_function_decl)
        abort ();
    }

  /* Store back the PARM_DECL nodes.  They appear in the right order.  */
  DECL_ARGUMENTS (fn_decl) = getdecls ();

  /* Force it to be output, else may be solely inlined.  */
  TREE_ADDRESSABLE (fn_decl) = 1;
  
  /* Stop -O3 from deleting it.  */
  TREE_USED (fn_decl) = 1;

  /* Add a new level to the debugger symbol table.  */
  
  (*lang_hooks.decls.pushlevel) (0);
  
  /* Create rtl for the start of a new scope.  */
  
  expand_start_bindings (0);
  
  emit_line_note ((const char *)filename, lineno); /* Output the line number information.  */
}
Example #9
0
static void
finish_handler_array ()
{
  tree decl = current_handler->handler_array_decl;
  tree t;
  tree handler_array_init = NULL_TREE;
  int handlers_count = 1;
  int nelts;

  /* Build the table mapping exceptions to handler(-number)s.
     This is done in reverse order. */
  
  /* First push the end of the list.  This is either the ELSE
     handler (current_handler->else_handler>0) or NULL handler to indicate
     the end of the list (if current_handler->else-handler == 0).
     The following works either way. */
  handler_array_init = build_tree_list
    (NULL_TREE, chill_expand_tuple
     (handler_element_type,
      build_nt (CONSTRUCTOR, NULL_TREE,
		tree_cons (NULL_TREE,
			   null_pointer_node,
			   build_tree_list (NULL_TREE,
					    build_int_2 (current_handler->else_handler,
							     0))))));
  
  for (t = current_handler->on_alt_list; t != NULL_TREE; t = TREE_CHAIN (t))
    { tree handler_number = TREE_PURPOSE(t);
      tree elist = TREE_VALUE (t);
      for ( ; elist != NULL_TREE; elist = TREE_CHAIN (elist))
	{
	  tree ex_decl =
	    build_chill_exception_decl (IDENTIFIER_POINTER(TREE_VALUE(elist)));
	  tree ex_addr = build1 (ADDR_EXPR,
				 char_pointer_type_for_handler,
				 ex_decl);
	  tree el = build_nt (CONSTRUCTOR, NULL_TREE,
			      tree_cons (NULL_TREE,
					 ex_addr,
					 build_tree_list (NULL_TREE,
							  handler_number)));
	  mark_addressable (ex_decl);
	  TREE_CONSTANT (ex_addr) = 1;
	  handler_array_init =
	    tree_cons (NULL_TREE,
		       chill_expand_tuple (handler_element_type, el),
		       handler_array_init);
	  handlers_count++;
	}
    }

#if 1
  nelts = list_length (handler_array_init);
  TYPE_DOMAIN (TREE_TYPE (decl))
    = build_index_type (build_int_2 (nelts - 1, - (nelts == 0)));
  layout_type (TREE_TYPE (decl));
  DECL_INITIAL (decl)
    = convert (TREE_TYPE (decl),
	       build_nt (CONSTRUCTOR, NULL_TREE, handler_array_init));

  /* Pop back to the obstack that is current for this binding level.
     This is because MAXINDEX, rtl, etc. to be made below
     must go in the permanent obstack.  But don't discard the
     temporary data yet.  */
  pop_obstacks ();
  layout_decl (decl, 0);
  /* To prevent make_decl_rtl (called indiectly by rest_of_decl_compilation)
     throwing the existing RTL (which has already been used). */
  PUT_MODE (DECL_RTL (decl), DECL_MODE (decl));
  rest_of_decl_compilation (decl, (char*)0, 0, 0);
  expand_decl_init (decl);
#else
  /* To prevent make_decl_rtl (called indirectly by finish_decl)
     altering the existing RTL. */
  GET_MODE (DECL_RTL (current_handler->handler_array_decl)) =
    DECL_MODE (current_handler->handler_array_decl);

  finish_decl (current_handler->handler_array_decl,
	       build_nt (CONSTRUCTOR, NULL_TREE, handler_array_init),
	       NULL_TREE);
#endif
}