------- Comment #25 from ubizjak at gmail dot com 2010-01-07 09:17 -------
New patch revision in testing:
--cut here--
Index: ifcvt.c
===================================================================
--- ifcvt.c (revision 155686)
+++ ifcvt.c (working copy)
@@ -4087,7 +4087,8 @@ dead_or_predicable (basic_block test_bb,
if (! note)
continue;
set = single_set (insn);
- if (!set || !function_invariant_p (SET_SRC (set)))
+ if ((set && !function_invariant_p (SET_SRC (set)))
+ || !function_invariant_p (XEXP (note, 0)))
remove_note (insn, note);
} while (insn != end && (insn = NEXT_INSN (insn)));
--cut here--
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42511
