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, 5 insertions, 6 deletions

diff --git a/gcc/tree-scalar-evolution.c b/gcc/tree-scalar-evolution.c
index 9bd122a..d4570a5 100644
--- a/gcc/tree-scalar-evolution.c
+++ b/gcc/tree-scalar-evolution.c
@@ -966,8 +966,7 @@ tree
 get_loop_exit_condition (struct loop *loop)
 {
   tree res = NULL_TREE;
-  edge exit_edge = loop->single_exit;
-
+  edge exit_edge = single_exit (loop);
   
   if (dump_file && (dump_flags & TDF_DETAILS))
     fprintf (dump_file, "(get_loop_exit_condition \n  ");
@@ -1003,7 +1002,7 @@ get_exit_conditions_rec (struct loop *loop,
   get_exit_conditions_rec (loop->inner, exit_conditions);
   get_exit_conditions_rec (loop->next, exit_conditions);
   
-  if (loop->single_exit)
+  if (single_exit (loop))
     {
       tree loop_condition = get_loop_exit_condition (loop);
       
@@ -2107,7 +2106,7 @@ loop_closed_phi_def (tree var)
     return NULL_TREE;
 
   loop = loop_containing_stmt (SSA_NAME_DEF_STMT (var));
-  exit = loop->single_exit;
+  exit = single_exit (loop);
   if (!exit)
     return NULL_TREE;
 
@@ -2485,7 +2484,7 @@ number_of_iterations_in_loop (struct loop *loop)
   if (dump_file && (dump_flags & TDF_DETAILS))
     fprintf (dump_file, "(number_of_iterations_in_loop\n");
   
-  exit = loop->single_exit;
+  exit = single_exit (loop);
   if (!exit)
     goto end;
 
@@ -2961,7 +2960,7 @@ scev_const_prop (void)
 
       /* If we do not know exact number of iterations of the loop, we cannot
 	 replace the final value.  */
-      exit = loop->single_exit;
+      exit = single_exit (loop);
       if (!exit)
 	continue;