http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48773
--- Comment #6 from Matthew Fortune <mfortune at gmail dot com> 2011-05-04 16:19:32 UTC --- (In reply to comment #5) > This is a known issue introduced by the DF merge. I think that the current > state of affairs is that the passes consuming REG_DEAD/REG_UNUSED notes have > to > invoke df_note_add_problem on entry. Can anyone speculate as to which passes consume REG_DEAD notes or is it a case of trawling the source? invoking df_note_add_problem in the final pass should resolve the bug I have seen but I expect there are more.
