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 191ED3857348; Tue, 16 May 2023 22:43:37 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 191ED3857348
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1684277017;
	bh=PIZNb/lEEfOpMMLubpaxjHmuUFZsQMktSHldKicNFJ8=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=amCcoCnX5nw+Gft+U51oR1pJC3Hq+P9iJB271e2CCpOvmF9NT6yoIEJg41eb3Nw0/
	 By7O0TWuR+YUYQn0NHPgSd5AgaMRU6vyHwsKJWDYVMLxcuAvoElZQLR2OL0gbQZa1W
	 Y8VgnbTSiqm23GLx7VqNc13vxJZoJlAYJhwTjp18=
From: "juzhe.zhong at rivai dot ai" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/109812] GraphicsMagick resize is a lot slower in GCC
 13.1 vs Clang 16
Date: Tue, 16 May 2023 22:43:36 +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: juzhe.zhong at rivai dot ai
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: cc
Message-ID: <bug-109812-4-9jlm1La8CF@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-109812-4@http.gcc.gnu.org/bugzilla/>
References: <bug-109812-4@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=3D109812

JuzheZhong <juzhe.zhong at rivai dot ai> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |juzhe.zhong at rivai dot ai

--- Comment #4 from JuzheZhong <juzhe.zhong at rivai dot ai> ---
Thanks for reporting this. Unfortunately, a single report can not help us.
Would you mind file a bug with simple piece of code that we can reproduce
such issue and this issue matters for the benchmark.

Besides, I have read this report. I think this may be the X86 backend issue.
We (downstream) RISC-V GCC have tested various workloads, turns out GCC is
better
than Clang in traditional CPU benchmark. Also, Clang is much better than GC=
C in
AI program benchmark (For example mlperf).

Start with the benchmark you mentioned (GraphicsMagick), Could you post the
most important piece of code belongging to this benchmark ?


Thanks.=