1 /* $Id: cf_loop.h,v 1.4 1994/06/24 10:20:26 ceriel Exp $ */
3 * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
4 * See the copyright notice in the ACK home directory, in the file "Copyright".
6 /* C O N T R O L F L O W
8 * L O O P D E T E C T I O N
11 extern loop_detection(); /* (proc_p p)
12 * Detect all loops of procedure p.
13 * Every basic block of p is assigned
14 * a set of all loops it is part of.
15 * For every loop we record the number
16 * of blocks it contains, the loop entry
17 * block and its nesting level (0 = outer
18 * loop, 1 = loop within loop etc.).