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 B68A03858D38; Mon, 22 May 2023 17:55:11 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B68A03858D38
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1684778111;
	bh=SrTmGCKkDVlUkoJyzLucEP2ubNaHWmXCodMueMckMjQ=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=n3/RXIgiD+PHXG1bGbsZ15AwZcqPkJtJCDpD/nNZ0qLZWaq6JsiTdgSbk3slr47Uu
	 jUxlgTyOxOoZo4hkXoDiR69njX6hIEOlrDGRwvah0dFM1YKkCSekfqJFIoCEKTCslV
	 uM2OBtEWQPOka60yX9bPba/+a3UhXobZxNLuVSUU=
From: "Simon.Richter at hogyros dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/109930] transform atomic exchange to
 unconditional store when old value is unused?
Date: Mon, 22 May 2023 17:55:11 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: rtl-optimization
X-Bugzilla-Version: 13.1.1
X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: Simon.Richter at hogyros dot de
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-109930-4-kM3jgRFD4m@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-109930-4@http.gcc.gnu.org/bugzilla/>
References: <bug-109930-4@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=3D109930

--- Comment #3 from Simon Richter <Simon.Richter at hogyros dot de> ---
I was looking at ARMv7 initially.

If I understood the implementation correctly, this can be a generic
optimization.=