[Bug middle-end/67438] [6 Regression] ~X op ~Y pattern relocation causes loop performance degradation on 32bit x86

[graham.stott at btinternet dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67438

--- Comment #8 from graham.stott at btinternet dot com ---
Sent from Samsung Mobile on O2

<div>-------- Original message --------</div><div>From: "afomin.mailbox at
gmail dot com" <gcc-bugzilla@gcc.gnu.org> </div><div>Date:07/09/2015  13:35 
(GMT+00:00) </div><div>To: gcc-bugs@gcc.gnu.org </div><div>Subject: [Bug
middle-end/67438] [6 Regression] ~X op ~Y pattern relocation causes loop
performance degradation on 32bit x86 </div><div>
</div>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.