[Bug middle-end/43631] var-tracking inserts notes with non-NULL BLOCK_FOR_INSN in between basic blocks

[izamyatin at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43631

--- Comment #17 from Igor Zamyatin <izamyatin at gmail dot com> 2012-12-10 08:02:54 UTC ---
(In reply to comment #15)
> But, double checking dwarf2out.c reveals that we could indeed emit the notes
> after BARRIER instead if there is any.  So I'm leaning towards this patch.

Atom bootstrap is ok with this patch