From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 6E74C3858431; Thu, 11 May 2023 15:30:03 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6E74C3858431
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1683819003;
	bh=7MfAY4km8jvyk0YJwVmj0RnznwtP0tS1NZZQMfw534M=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=JMDzo7kvD7s+7pQY2jA4KLKlilAjIw9pBRLDgw0grtIWsGiMwvMzE81JNwiEnwNyo
	 MDi2PlyoptaZTo2Cz6tXgg7FpGq+8pDMoIPP9APPYm4zmOqi9ELGGkiai31ObMp2zj
	 wjuJyRDowrM1dIONwLzd5vY/Vmfd8yVjfgdDAwnI=
From: "xry111 at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/109811] libxjl 0.7 is a lot slower in GCC 13.1 vs Clang
 16
Date: Thu, 11 May 2023 15:30:03 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 13.1.1
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: xry111 at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: cc
Message-ID: <bug-109811-4-vesrhlBxJK@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-109811-4@http.gcc.gnu.org/bugzilla/>
References: <bug-109811-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109811

Xi Ruoyao <xry111 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |xry111 at gcc dot gnu.org

--- Comment #1 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
A URL of an external site nor a plot is not a valid bug report.  We need
precisely how to reproduce the issue.  And you cannot assume the GCC develo=
pers
always have a Raptor Lake or they want to run the full Phoronix bench suite.

See https://gcc.gnu.org/bugs/.

That being said, maybe we can try `-fno-semantic-interposition` first?  It's
the default of clang, but not GCC.  And if a library is compiled with -fPIC
sometimes semantic interposition can cause a large performance loss.=