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From: "ramana at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/57462] ira-costs considers only a single register at a time Date: Wed, 10 Jul 2013 22:10:00 -0000 [thread overview] Message-ID: <bug-57462-4-I3uvDFkQwi@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-57462-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57462 Ramana Radhakrishnan <ramana at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ramana at gcc dot gnu.org --- Comment #3 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> --- This is part of the reason why on trunk we currently disable 64 bit arithmetic in neon in a large number of cases. It's sometimes just not worth it - Additionally neon doesn't have comparison operations so many times one has noticed that we keep doing a lot of operations on the neon side and then you just have to move back to the integer side to the comparisons. So there are times when this doesn't happen properly. Ramana
next prev parent reply other threads:[~2013-07-10 22:10 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <bug-57462-4@http.gcc.gnu.org/bugzilla/> 2013-05-31 13:55 ` vmakarov at redhat dot com 2013-06-03 21:18 ` josh.m.conner at gmail dot com 2013-07-10 22:10 ` ramana at gcc dot gnu.org [this message] 2015-01-23 10:32 ` ramana at gcc dot gnu.org
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