* tree-vrp.c (execute_vrp): Do not check whether current_loops == NULL.

	* tree-chrec.c (evolution_function_is_invariant_rec_p): Ditto.
	* ifcvt.c (if_convert): Ditto.
	* tree-ssa-threadupdate.c (thread_block): Ditto.
	(thread_through_all_blocks): Ditto.  Assert that loops were analysed.
	* tree-ssa-loop-manip.c (rewrite_into_loop_closed_ssa,
	verify_loop_closed_ssa): Check number_of_loops instead of current_loops.
	* predict.c (tree_estimate_probability): Ditto.
	* tree-if-conv.c (main_tree_if_conversion): Ditto.
	* tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
	* modulo-sched.c (sms_schedule): Ditto.
	* tree-scalar-evolution.c (scev_const_prop): Ditto.
	(scev_finalize): Do not do anything if scev analysis was not
	initialized.
	* cfgloopanal.c (mark_irreducible_loops): Do not check whether
	current_loops == NULL.
	(mark_loop_exit_edges): Check number_of_loops instead of current_loops.
	* loop-init.c (loop_optimizer_init): Do not free current_loops when
	there are no loops.
	(loop_optimizer_finalize): Assert that loops were analyzed.
	(rtl_move_loop_invariants, rtl_unswitch, rtl_unroll_and_peel_loops,
	rtl_doloop): Check number_of_loops instead of current_loops.
	* tree-ssa-loop.c (tree_loop_optimizer_init): Do not check whether
	current_loops == NULL.
	(tree_ssa_loop_init, tree_ssa_loop_im, tree_ssa_loop_unswitch,
	gate_tree_vectorize tree_linear_transform, check_data_deps,
	tree_ssa_loop_ivcanon, tree_ssa_empty_loop, tree_ssa_loop_bounds,
	tree_complete_unroll, tree_ssa_loop_prefetch, tree_ssa_loop_ivopts):
	Check number_of_loops instead of current_loops.
	(tree_ssa_loop_done): Do not check whether current_loops == NULL.
	* tree-ssa-pre.c (fini_pre): Do not take do_fre argument.  Always
	free loops if available.
	(execute_pre): Do not pass do_fre to fini_pre.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@125114 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 3 insertions, 4 deletions

diff --git a/gcc/tree-ssa-loop-manip.c b/gcc/tree-ssa-loop-manip.c
index 16b126dc457..a1d06911d6b 100644
--- a/gcc/tree-ssa-loop-manip.c
+++ b/gcc/tree-ssa-loop-manip.c
@@ -360,7 +360,8 @@ rewrite_into_loop_closed_ssa (bitmap changed_bbs, unsigned update_flag)
   unsigned i, old_num_ssa_names;
   bitmap names_to_rename;
 
-  if (!current_loops)
+  current_loops->state |= LOOP_CLOSED_SSA;
+  if (number_of_loops () <= 1)
     return;
 
   loop_exits = get_loops_exits ();
@@ -389,8 +390,6 @@ rewrite_into_loop_closed_ssa (bitmap changed_bbs, unsigned update_flag)
   /* Fix up all the names found to be used outside their original
      loops.  */
   update_ssa (TODO_update_ssa);
-
-  current_loops->state |= LOOP_CLOSED_SSA;
 }
 
 /* Check invariants of the loop closed ssa form for the USE in BB.  */
@@ -432,7 +431,7 @@ verify_loop_closed_ssa (void)
   tree phi;
   unsigned i;
 
-  if (current_loops == NULL)
+  if (number_of_loops () <= 1)
     return;
 
   verify_ssa (false);