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 534F83858C3A; Thu,  9 May 2024 11:09:29 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 534F83858C3A
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1715252969;
	bh=iyiROTXnVkZcRtEaHiR5hhUrbF/Zp1IrdJg99lEs4zc=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=m7c1YVMVt3m40IZmaegVS8dvYlkbfG6qMgJ2cvDs0vt1E3kPnrYt/2l67wvGC063H
	 LNKwoWcYDC6tsVfjSrNRzqj1b+m2BTVi7Fq2HHeRwYuVvdl0ProXOVZyjZNRTz+Vo7
	 uawteLcXxN0+dYk69x2DCcyXAZNXa6Alwp8W5UoU=
From: "chenglulu at loongson dot cn" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/114978] [14/15 regression] 548.exchange2_r 14%-28%
 regressions on Loongarch64 after gcc 14 snapshot 20240317
Date: Thu, 09 May 2024 11:09:28 +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: 14.0
X-Bugzilla-Keywords: needs-bisection
X-Bugzilla-Severity: normal
X-Bugzilla-Who: chenglulu at loongson dot cn
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: 14.2
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-114978-4-Yr3NHm6z62@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-114978-4@http.gcc.gnu.org/bugzilla/>
References: <bug-114978-4@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=3D114978

--- Comment #11 from chenglulu <chenglulu at loongson dot cn> ---
(In reply to Chen Chen from comment #0)
> We tested Loongarch64 CPU Loongson 3A6000 with "LA664" architecture in Li=
nux
> operating system AOSC OS 11.4.0 (default gcc version is 13.2.0). And we
> found the 548.exchange2_r benchmark from SPEC 2017 INTrate suite suffered
> significant regressions from 14% to 28% with various compiling options.
>=20
> The rate-1 results are following:
>=20
> after snapshot 20240317 score 14.3-19.3% lower with parameters "-g -Ofast
> -march=3Dnative":
> 13.2.0:    11.7 (223s) [gcc 13.2.0, system default]
Hi=EF=BC=9A

 I can't reproduce the score of r13.2. Have you made any modifications ther=
e?=