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From: "crazylht at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/96744] [11 Regression] FAIL:
 gcc.target/i386/avx512bitalgvl-vpopcntb-1.c execution test
Date: Thu, 27 Aug 2020 09:09:16 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96744

--- Comment #10 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to Uro=C5=A1 Bizjak from comment #3)
> Created attachment 49112 [details]
> Retune mask <-> general moves cost
>=20
> It looks to me that mask <-> general cost is too low, so the compiler now
> prefers these moves too much. Attached patch equalizes mask <-> general c=
ost
> with xmm <-> general cost, and it seems to fix the problem.
>=20
> Hongjiu, can you please retune the costs, using the attached patch as the
> start?

I'll spend some time to retune it.=