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 9A9723858D28; Thu,  2 Nov 2023 14:12:11 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9A9723858D28
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1698934331;
	bh=+DbJwCWjM8gtkb3+wgcY3JoPq0QTPfhydjhXj0B6IQU=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=mTmfUuRRo4+W4jjPh3TbHzryD7CBI0SvZIHCX/OsAufejjSlJo2O76kCZw7tKxz7N
	 8ZOpYDIGw3k5mT/BZpUzA4rEd06ALznPPru2eMkZ8pg1eJNQK/FLk9KtphibvomnLE
	 I5es4HcpVNDe777bsQ129Uu4xiFI5tW10AFJAhH8=
From: "hubicka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/109811] libjxl 0.7 is a lot slower in GCC 13.1 vs Clang
 16
Date: Thu, 02 Nov 2023 14:12:09 +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: missed-optimization
X-Bugzilla-Severity: normal
X-Bugzilla-Who: hubicka at gcc dot gnu.org
X-Bugzilla-Status: NEW
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: 
Message-ID: <bug-109811-4-eVpvcHjDCE@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

--- Comment #13 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
So I re-tested it with current mainline and clang 16/17

For mainline I get (megapixels per second, bigger is better):
        13.39
        13.38
        13.42
clang 16:
        20.06
        20.06
        19.87
clang 17:
        19.7
        19.68
        19.69


mainline with Martin's patch to enable SRA across calls where parameter doe=
sn't
example (improvement for PR109849) I get:
        19.37
        19.35
        19.31
this is without inlining m_realloc_insert which we do at -O3 but we don't at
-O2 since it is large (clang inlines at both at -O2 and -O3).=