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/* Header file for Nested function decomposition for GIMPLE.
Copyright (C) 2013-2021 Free Software Foundation, Inc.
This file is part of GCC.
GCC 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, or (at your option) any later
version.
GCC 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; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GCC_TREE_NESTED_H
#define GCC_TREE_NESTED_H
extern tree build_addr (tree);
extern void insert_field_into_struct (tree, tree);
extern void lower_nested_functions (tree);
class nested_function_info
{
public:
/* Constructor. */
nested_function_info ()
: origin (NULL),
nested (NULL),
next_nested (NULL)
{
}
/* Copy constructor. We can not simply copy the structure,
because the linked lists would go wrong. However we should never
need that. */
nested_function_info (const nested_function_info &)
{
gcc_unreachable ();
}
~nested_function_info ();
/* Return nested_function_info, if available. */
static nested_function_info *get (cgraph_node *node);
/* Return nested_function_info possibly creating new one. */
static nested_function_info *get_create (cgraph_node *node);
/* Release all nested_function_infos. */
static void release (void);
/* For nested functions points to function the node is nested in. */
cgraph_node *origin;
/* Points to first nested function, if any. */
cgraph_node *nested;
/* Pointer to the next function with same origin, if any. */
cgraph_node *next_nested;
};
extern void maybe_record_nested_function (cgraph_node *node);
extern void unnest_function (cgraph_node *node);
/* If there are functions nested in NODE, return first one. */
inline cgraph_node *
first_nested_function (cgraph_node *node)
{
nested_function_info *info = nested_function_info::get (node);
return info ? info->nested : NULL;
}
/* Return next nested function (used to iterate from first_nested_function). */
inline cgraph_node *
next_nested_function (cgraph_node *node)
{
return nested_function_info::get (node)->next_nested;
}
/* Return origin of nested function (and NULL otherwise). */
inline cgraph_node *
nested_function_origin (cgraph_node *node)
{
nested_function_info *info = nested_function_info::get (node);
return info ? info->origin : NULL;
}
#endif /* GCC_TREE_NESTED_H */
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