unroll.c (iteration_info): Subsume into loop_iterations.

	* unroll.c (iteration_info): Subsume into loop_iterations.
	* loop.h (loop_info): New field iv.

From-SVN: r36334

gcc/ChangeLog

 2000-09-12  Michael Hayes  <mhayes@cygnus.com>
 
+	* unroll.c (iteration_info): Subsume into loop_iterations.
+	* loop.h (loop_info): New field iv.
+
+2000-09-12  Michael Hayes  <mhayes@cygnus.com>
+
 	* basic-block.h (LOOP_TREE, LOOP_PRE_HEADER, LOOP_EDGES): New.
 	(LOOP_EXITS_DOMS, LOOP_ALL): Likewise.
 	(flow_loops_update): New prototype.

gcc/loop.h

@@ -216,6 +216,8 @@ struct loop_info
   /* The number of times the loop body was unrolled.  */
   unsigned int unroll_number;
   int used_count_register;
+  /* The loop iterator induction variable.  */
+  struct iv_class *iv;
   /* List of MEMs that are stored in this loop.  */
   rtx store_mems;
   /* Array of MEMs that are used (read or written) in this loop, but