* cfgloopmanip.c (copy_loop_info): New function.
(duplicate_loop): Use it.
(loop_version): Use it.
* loop-unswitch.c (unswitch_loop): Use it.
* cfgloop.h (copy_loop_info): Declare.
From-SVN: r192543
+2012-10-17 Jan Hubicka <jh@suse.cz>
+
+ * cfgloopmanip.c (copy_loop_info): New function.
+ (duplicate_loop): Use it.
+ (loop_version): Use it.
+ * loop-unswitch.c (unswitch_loop): Use it.
+ * cfgloop.h (copy_loop_info): Declare.
+
2012-10-17 Jan Hubicka <jh@suse.cz>
* tree-ssa-loop-ivcanon.c (tree_estimate_loop_size): Add edge_to_cancel
extern struct loop *create_empty_loop_on_edge (edge, tree, tree, tree, tree,
tree *, tree *, struct loop *);
extern struct loop * duplicate_loop (struct loop *, struct loop *);
+extern void copy_loop_info (struct loop *loop, struct loop *target);
extern void duplicate_subloops (struct loop *, struct loop *);
extern bool duplicate_loop_to_header_edge (struct loop *, edge,
unsigned, sbitmap, edge,
}
}
+/* Duplicate loop bounds and other information we store about
+ the loop into its duplicate. */
+
+void
+copy_loop_info (struct loop *loop, struct loop *target)
+{
+ gcc_checking_assert (!target->any_upper_bound && !target->any_estimate);
+ target->any_upper_bound = loop->any_upper_bound;
+ target->nb_iterations_upper_bound = loop->nb_iterations_upper_bound;
+ target->any_estimate = loop->any_estimate;
+ target->nb_iterations_estimate = loop->nb_iterations_estimate;
+ target->estimate_state = loop->estimate_state;
+}
+
/* Copies copy of LOOP as subloop of TARGET loop, placing newly
created loop into loops structure. */
struct loop *
struct loop *cloop;
cloop = alloc_loop ();
place_new_loop (cloop);
+
+ copy_loop_info (loop, cloop);
/* Mark the new loop as copy of LOOP. */
set_loop_copy (loop, cloop);
false /* Do not redirect all edges. */,
then_scale, else_scale);
+ copy_loop_info (loop, nloop);
+
/* loopify redirected latch_edge. Update its PENDING_STMTS. */
lv_flush_pending_stmts (latch_edge);
BRANCH_EDGE (switch_bb), FALLTHRU_EDGE (switch_bb), true,
prob, REG_BR_PROB_BASE - prob);
+ copy_loop_info (loop, nloop);
/* Remove branches that are now unreachable in new loops. */
remove_path (true_edge);
remove_path (false_edge);