This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug middle-end/67438] [6 Regression] ~X op ~Y pattern relocation causes loop performance degradation on 32bit x86
- From: "afomin.mailbox at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 07 Sep 2015 12:35:18 +0000
- Subject: [Bug middle-end/67438] [6 Regression] ~X op ~Y pattern relocation causes loop performance degradation on 32bit x86
- Auto-submitted: auto-generated
- References: <bug-67438-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67438
--- Comment #7 from Alexander Fomin <afomin.mailbox at gmail dot com> ---
Looks like a cost model should be introduced to avoid such kind of
transformations for targets with HW min/max implementation.