tree-vrp.c (adjust_range_with_scev): Use get_chrec_loop.

	* tree-vrp.c (adjust_range_with_scev): Use get_chrec_loop.
	* loop-unswitch.c (unswitch_loops): Use FOR_EACH_LOOP.
	* tree-loop-linear.c (linear_transform_loops): Ditto.
	* tree-ssa-loop-im.c (determine_lsm): Ditto.
	* tree-ssa-loop-niter.c (estimate_numbers_of_iterations,
	free_numbers_of_iterations_estimates): Ditto.
	* tree_ssa_unswitch_loops (tree_ssa_unswitch_loops): Ditto.
	* tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
	* tree-ssa-loop-ivopts.c (tree_ssa_iv_optimize): Ditto.
	* modulo-sched.c (sms_schedule): Ditto.
	* tree-ssa-loop-ivcanon.c (canonicalize_induction_variables,
	tree_unroll_loops_completely): Ditto.
	* predict.c (predict_loops): Ditto.
	* tree-if-conv.c (main_tree_if_conversion): Ditto.
	* loop-unroll.c (unroll_and_peel_loops, peel_loops_completely,
	decide_unrolling_and_peeling): Ditto.
	* cfgloopmanip.c (unloop): Use delete_loop.
	(place_new_loop): Access larray vector instead of parray.
	(create_preheaders, force_single_succ_latches,
	fix_loop_structure): Use FOR_EACH_LOOP and delete_loop..
	* loop-doloop.c (doloop_optimize_loops): Ditto.
	* loop-invariant.c (move_loop_invariants): Ditto.
	* tree-cfg.c (replace_uses_by): Ditto.
	* tree-ssa-loop-prefetch.c (tree_ssa_prefetch_arrays): Ditto.
	* tree-chrec.h (CHREC_VAR, CHREC_LEFT, CHREC_RIGHT, CHREC_VARIABLE):
	Moved to ...
	* tree.h (CHREC_VAR, CHREC_LEFT, CHREC_RIGHT, CHREC_VARIABLE):
	... here.
	* tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop,
	compute_overall_effect_of_inner_loop, chrec_is_positive): Use
	get_loop and get_chrec_loop.
	(number_of_iterations_for_all_loops): Use number_of_loops.
	(scev_initialize, scev_reset, scev_const_prop): Use FOR_EACH_LOOP.
	* tree-scalar-evolution.h (get_chrec_loop): New inline function.
	* cfgloopanal.c (mark_irreducible_loops): Use number_of_loops,
	and FOR_EACH_LOOP.
	* tree-chrec.c (evolution_function_is_invariant_rec_p,
	chrec_convert_1): Use get_loop and get_chrec_loop.
	* loop-init.c (loop_optimizer_init): Use number_of_loops.
	(loop_optimizer_init): Use FOR_EACH_LOOP.
	* tree-vectorizer.c (vect_loops_num): Removed.
	(vectorize_loops): Store number of loops locally.  Use
	FOR_EACH_LOOP and get_loop.
	* tree-vectorizer.h (vect_loops_num): Removed.
	* tree-data-ref.c (get_number_of_iters_for_loop): Use get_loop.
	(find_data_references_in_loop): Do not set parallel_p.
	* tree-data-ref.h: Do not declare VEC(loop_p).
	* cfgloop.c (flow_loops_dump, mark_single_exit_loops,
	verify_loop_structure): Use FOR_EACH_LOOP.
	(flow_loops_free): Use FOR_EACH_LOOP, free larray vector.
	(initialize_loops_parallel_p): Removed.
	(flow_loops_find): Push the loops into a vector.
	(delete_loop): New function.
	(cancel_loop): Use delete_loop.
	* cfgloop.h: Declare VEC(loop_p).
	(struct loop): Remove parallel_p field.
	(struct loops): Replace num and parray field by larray vector.
	Remove shared_headers field.
	(delete_loop): Declare.
	(get_loop, get_loops, number_of_loops, fel_next, fel_init,
	FOR_EACH_LOOP): New.
	* doc/loop.tex: Document new accessor functions.

From-SVN: r119713

1 files changed, 6 insertions, 10 deletions

diff --git a/gcc/tree-vectorizer.c b/gcc/tree-vectorizer.c
index 9974343..d948c99 100644
--- a/gcc/tree-vectorizer.c
+++ b/gcc/tree-vectorizer.c
@@ -174,9 +174,6 @@ FILE *vect_dump;
    to mark that it's uninitialized.  */
 enum verbosity_levels vect_verbosity_level = MAX_VERBOSITY_LEVEL;
 
-/* Number of loops, at the beginning of vectorization.  */
-unsigned int vect_loops_num;
-
 /* Loop location.  */
 static LOC vect_loop_location;
 
@@ -2157,6 +2154,9 @@ vectorize_loops (void)
 {
   unsigned int i;
   unsigned int num_vectorized_loops = 0;
+  unsigned int vect_loops_num;
+  loop_iterator li;
+  struct loop *loop;
 
   /* Fix the verbosity level if not defined explicitly by the user.  */
   vect_set_dump_settings ();
@@ -2170,14 +2170,10 @@ vectorize_loops (void)
   /* If some loop was duplicated, it gets bigger number 
      than all previously defined loops. This fact allows us to run 
      only over initial loops skipping newly generated ones.  */
-  vect_loops_num = current_loops->num;
-  for (i = 1; i < vect_loops_num; i++)
+  vect_loops_num = number_of_loops ();
+  FOR_EACH_LOOP (li, loop, LI_ONLY_OLD)
     {
       loop_vec_info loop_vinfo;
-      struct loop *loop = current_loops->parray[i];
-
-      if (!loop)
-        continue;
 
       vect_loop_location = find_loop_location (loop);
       loop_vinfo = vect_analyze_loop (loop);
@@ -2201,9 +2197,9 @@ vectorize_loops (void)
 
   for (i = 1; i < vect_loops_num; i++)
     {
-      struct loop *loop = current_loops->parray[i];
       loop_vec_info loop_vinfo;
 
+      loop = get_loop (i);
       if (!loop)
 	continue;
       loop_vinfo = loop->aux;