-/* Copyright (C) 2002 by Universitaet Karlsruhe
-* All rights reserved.
-*/
+/*
+ * Project: libFIRM
+ * File name: ir/ana/irloop_t.h
+ * Purpose: Loop datastructure and access functions.
+ * Author: Goetz Lindenmaier
+ * Modified by:
+ * Created: 7.2002
+ * CVS-ID: $Id$
+ * Copyright: (c) 2002-2003 Universität Karlsruhe
+ * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
+ */
/**
* @file irloop.h
* Constructs loops data structure: indicates loop nesting.
*/
-/* $Id$ */
-
# ifndef _IRLOOP_H_
# define _IRLOOP_H_
/* Loop elements are loop nodes and ir nodes */
typedef union {
- firm_kind *kind; /* is either k_ir_node or k_ir_loop */
- ir_node *node; /* Pointer to a loop tree element */
- ir_loop *son; /* Pointer to a ir_graph element */
+ firm_kind *kind; /**< is either k_ir_node or k_ir_loop */
+ ir_node *node; /**< Pointer to an ir_node element */
+ ir_loop *son; /**< Pointer to an ir_loop element */
} loop_element;
void set_irg_loop(ir_graph *irg, ir_loop *l);
/** Returns the number of elements contained in loop. */
int get_loop_n_elements (ir_loop *loop);
+/** Returns a loop element. A loop element can be interpreted as a
+ kind pointer, an ir_node* or an ir_loop*. */
loop_element get_loop_element (ir_loop *loop, int pos);
/*
void construct_backedges(ir_graph *irg);
/** Constructs backedges for all irgs in interprocedural view. All
- loops in the graph will be marked as such, not only realizeable
- loops and recursions in the program. E.g., if the same funcion is
- called twice, there is a loop between the first funcion return and
- the second call. */
+ loops in the graph will be marked as such, not only realizeable
+ loops and recursions in the program. E.g., if the same funcion is
+ called twice, there is a loop between the first funcion return and
+ the second call. */
void construct_ip_backedges(void);
#endif /* _IRLOOP_H_ */