ack/util/ego/cf/cf_idom.h

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1987-03-10 11:49:39 +00:00
/* $Header$ */
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/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
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/* C O N T R O L F L O W
*
* I M M E D I A T E D O M I N A T O R S
*/
extern dominator(); /* (bblock_p head, short n)
* Compute for every basic block its immediate
* dominator. The dominator relation is hence
* recorded as a tree in which every node contains
* a pointer to its parent, which is its
* immediate dominator.
* 'n' is the number of nodes (basic blocks) in
* the control flow graph.
*/