------- Comment #6 from hp at gcc dot gnu dot org 2010-09-21 15:11 -------
(In reply to comment #5)
> Created an attachment (id=21855)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21855&action=view) 
> Patch that fixes the problem
> cse was losing track of cc0 set/use because of intervening debug insns.
> got a CC0 host to bootstrap-test this on?
Thanks for looking to this. No bootstrap unfortunately, but I can
regression-test it for cris-elf, which should be sufficient. Well, I'm quite
certain you too know exactly the steps ;-) but I guess since I have a baseline
and a setup...
Let me just suggest changing the "... == 0" to "... == NULL_RTX" in the last
part of the patch. To incentivise, I'll test that. :)