------- Comment #3 from rguenth at gcc dot gnu dot org 2006-05-24 15:56 -------
This seems to fix it:
Index: tree-ssa-pre.c
===================================================================
--- tree-ssa-pre.c (revision 114040)
+++ tree-ssa-pre.c (working copy)
@@ -1696,6 +1713,7 @@ compute_antic_aux (basic_block block, bo
worklist = VEC_alloc (basic_block, heap, EDGE_COUNT (block->succs));
FOR_EACH_EDGE (e, ei, block->succs)
+ if (!(e->flags & EDGE_DFS_BACK))
VEC_quick_push (basic_block, worklist, e->dest);
first = VEC_index (basic_block, worklist, 0);
set_copy (ANTIC_OUT, ANTIC_IN (first));
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27755
