The following fixes compilation of mn10300 which broke when the
interface to flow_loops_find changed (as reported in a comment
in PR56294). I took the liberty to use the proper interface
for initializing the loop tree.
Built a mn10300 cc1, committed as obvious.
Richard.
2013-02-13 Richard Biener <rguent...@suse.de>
* config/mn10300/mn10300.c (mn10300_scan_for_setlb_lcc):
Fix loop discovery code.
Index: gcc/config/mn10300/mn10300.c
===================================================================
--- gcc/config/mn10300/mn10300.c (revision 195997)
+++ gcc/config/mn10300/mn10300.c (working copy)
@@ -3235,9 +3235,7 @@ mn10300_scan_for_setlb_lcc (void)
compute_bb_for_insn ();
/* Find the loops. */
- if (flow_loops_find (& loops) < 1)
- DUMP ("No loops found", NULL_RTX);
- current_loops = & loops;
+ loop_optimizer_init (AVOID_CFG_MODIFICATIONS);
/* FIXME: For now we only investigate innermost loops. In practice however
if an inner loop is not suitable for use with the SETLB/Lcc insns, it may
@@ -3287,15 +3285,7 @@ mn10300_scan_for_setlb_lcc (void)
reason);
}
-#if 0 /* FIXME: We should free the storage we allocated, but
- for some unknown reason this leads to seg-faults. */
- FOR_EACH_LOOP (liter, loop, 0)
- free_simple_loop_desc (loop);
-
- flow_loops_free (current_loops);
-#endif
-
- current_loops = NULL;
+ loop_optimizer_finalize ();
df_finish_pass (false);
