http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55158
--- Comment #18 from Steven Bosscher <steven at gcc dot gnu.org> 2012-12-04 09:56:53 UTC --- Created attachment 28872 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28872 Updated tentative fix (In reply to comment #16) > I can provide IA-64 testing cycles, but I don't really have time to > debug the scheduler when I haven't broken it. Sometimes you have to fix things you haven't broken. Especially trivial bugs like this one. Look at all the REG_EQUAL stuff I've been trying to fix. I assure you I wasn't around in GCC land when in ~1992 e.g. the optabs self-referencing REG_EQUAL notes were introduced :-) And in this case, my tentative fix was a pointer in the right direction. It has a rather obvious mistake in it, and anyone spending a minutes or two looking at the patch could have spotted and resolved the mistake. > > I'm having a look on gcc66. > > Thanks. I'm going to attach the testsuite results with the patch > applied; all the timeouts have been introduced by it. Attached is an updated patch. Again untested, but that's about to change. I'm going to test it on gcc66.
