Initial revision

util/ego/cf/cf_idom.h

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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.
+			 */