tree-loop-linear.c (linear_transform_loops): Use single_exit accessor functions.

	* tree-loop-linear.c (linear_transform_loops): Use single_exit accessor
	functions.
	* tree-ssa-loop-niter.c (loop_only_exit_p): Ditto.
	* cfgloopmanip.c (update_single_exits_after_duplication,
	update_single_exit_for_duplicated_loop, loop_version): Ditto.
	* tree-scalar-evolution.c (get_loop_exit_condition,
	get_exit_conditions_rec, loop_closed_phi_def,
	number_of_iterations_in_loop, scev_const_prop): Ditto.
	* tree-ssa-loop-ivopts.c (single_dom_exit): Ditto.
	* modulo-sched.c (generate_prolog_epilog, loop_canon_p, sms_schedule):
	Ditto.
	* tree-ssa-loop-ivcanon.c (canonicalize_loop_induction_variables):
	Ditto.
	* tree-vectorizer.c (slpeel_update_phis_for_duplicate_loop,
	slpeel_update_phi_nodes_for_guard1, slpeel_update_phi_nodes_for_guard2,
	slpeel_make_loop_iterate_ntimes,
	slpeel_tree_duplicate_loop_to_edge_cfg, slpeel_can_duplicate_loop_p,
	slpeel_verify_cfg_after_peeling, slpeel_tree_peel_loop_to_edge):
	Ditto.
	* tree-if-conv.c (if_convertible_loop_p): Ditto.
	* tree-vect-analyze.c (vect_analyze_operations, vect_stmt_relevant_p,
	vect_analyze_loop_form): Ditto.
	* lambda-code.c (lambda_loopnest_to_gcc_loopnest, exit_phi_for_loop_p,
	can_convert_to_perfect_nest, perfect_nestify): Ditto.
	* tree-vect-transform.c (vect_create_epilog_for_reduction,
	vect_update_ivs_after_vectorizer, vect_do_peeling_for_loop_bound,
	vect_transform_loop): Ditto.
	* cfgloop.c (mark_single_exit_loops, verify_loop_structure): Ditto.
	(single_exit, set_single_exit): New functions.
	* cfgloop.h (struct loop): Rename single_exit field to single_exit_.
	(single_exit, set_single_exit): Declare.
	* doc/loop.texi: Undocument single_exit field.  Document single_exit
	accessor function.

From-SVN: r119075

1 files changed, 7 insertions, 7 deletions

diff --git a/gcc/cfgloopmanip.c b/gcc/cfgloopmanip.c
index 028db02..63cab60 100644
--- a/gcc/cfgloopmanip.c
+++ b/gcc/cfgloopmanip.c
@@ -766,11 +766,11 @@ update_single_exits_after_duplication (basic_block *bbs, unsigned nbbs,
 
   for (; loop->outer; loop = loop->outer)
     {
-      if (!loop->single_exit)
+      if (!single_exit (loop))
 	continue;
 
-      if (loop->single_exit->src->flags & BB_DUPLICATED)
-	loop->single_exit = NULL;
+      if (single_exit (loop)->src->flags & BB_DUPLICATED)
+	set_single_exit (loop, NULL);
     }
 
   for (i = 0; i < nbbs; i++)
@@ -784,7 +784,7 @@ update_single_exit_for_duplicated_loop (struct loop *loop)
 {
   struct loop *copy = loop->copy;
   basic_block src, dest;
-  edge exit = loop->single_exit;
+  edge exit = single_exit (loop);
 
   if (!exit)
     return;
@@ -796,7 +796,7 @@ update_single_exit_for_duplicated_loop (struct loop *loop)
 
   exit = find_edge (src, dest);
   gcc_assert (exit != NULL);
-  copy->single_exit = exit;
+  set_single_exit (copy, exit);
 }
 
 /* Updates single exit information for copies of ORIG_LOOPS and their subloops.
@@ -1336,9 +1336,9 @@ loop_version (struct loops *loops, struct loop * loop,
 		   cond_bb, true_edge, false_edge,
 		   false /* Do not redirect all edges.  */);
 
-  exit = loop->single_exit;
+  exit = single_exit (loop);
   if (exit)
-    nloop->single_exit = find_edge (get_bb_copy (exit->src), exit->dest);
+    set_single_exit (nloop, find_edge (get_bb_copy (exit->src), exit->dest));
 
   /* loopify redirected latch_edge. Update its PENDING_STMTS.  */
   lv_flush_pending_stmts (latch_edge);