------- Comment #3 from bonzini at gnu dot org 2009-07-01 15:47 -------
Honza, this worked for me:
Index: combine.c
===================================================================
--- combine.c (revision 149135)
+++ combine.c (working copy)
@@ -2173,12 +2173,13 @@
update_cfg_for_uncondjump (rtx insn)
{
basic_block bb = BLOCK_FOR_INSN (insn);
+ bool at_end = (BB_END (bb) == insn);
- if (BB_END (bb) == insn)
+ if (at_end)
purge_dead_edges (bb);
delete_insn (insn);
- if (EDGE_COUNT (bb->succs) == 1)
+ if (at_end && EDGE_COUNT (bb->succs) == 1)
single_succ_edge (bb)->flags |= EDGE_FALLTHRU;
}
Would you mind seeing if your patch was the same?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39886
