From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <sourceware-bugzilla@sourceware.org>
Received: by sourceware.org (Postfix, from userid 48)
	id C1BA93858427; Mon,  3 Oct 2022 21:47:21 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C1BA93858427
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org;
	s=default; t=1664833641;
	bh=wbqpFxqoOsNIdw1DP2k+wVp3OqOShg0JCTjvhoVoiRw=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=AJXHWbBnjwxaOVaFUXp9qClE/84Yic1XL2WvwYttON7q89BWqUVZth95V2Qo9ghBP
	 BHaPqtkyJ7QjlPPLwBXC4PfGy3WjgSiTqAgBbjqvlRAvHghK7LsbippRsgiLomD0VF
	 1VMfvL7YXZqNWzkb6xil6txEuiwZu7T15FLKSCSM=
From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug string/29611] Optimized AVX2 string functions unconditionally
 use BMI2 instructions
Date: Mon, 03 Oct 2022 21:47:21 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: glibc
X-Bugzilla-Component: string
X-Bugzilla-Version: 2.31
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: critical
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: REOPENED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: goldstein.w.n at gmail dot com
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-29611-131-GCDj61UFYg@http.sourceware.org/bugzilla/>
In-Reply-To: <bug-29611-131@http.sourceware.org/bugzilla/>
References: <bug-29611-131@http.sourceware.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <glibc-bugs.sourceware.org>

https://sourceware.org/bugzilla/show_bug.cgi?id=3D29611

--- Comment #37 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot g=
nu.org> ---
The master branch has been updated by Aurelien Jarno <aurel32@sourceware.or=
g>:

https://sourceware.org/git/gitweb.cgi?p=3Dglibc.git;h=3D3c0c78afabfed4b6fc1=
61c159e628fbf14ff370b

commit 3c0c78afabfed4b6fc161c159e628fbf14ff370b
Author: Aurelien Jarno <aurelien@aurel32.net>
Date:   Mon Oct 3 23:46:11 2022 +0200

    x86-64: Require BMI2 and LZCNT for AVX2 memrchr implementation

    The AVX2 memrchr implementation uses the 'shlxl' instruction, which
    belongs to the BMI2 CPU feature and uses the 'lzcnt' instruction, which
    belongs to the LZCNT CPU feature.

    Fixes: af5306a735eb ("x86: Optimize memrchr-avx2.S")
    Partially resolves: BZ #29611

    Reviewed-by: Noah Goldstein  <goldstein.w.n@gmail.com>

--=20
You are receiving this mail because:
You are on the CC list for the bug.=