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 7136E3858C62; Wed,  3 Jan 2024 19:35:08 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 7136E3858C62
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1704310508;
	bh=SFQAzR/9qphA4oS1yd03gvVJO31H9jvIDhCHW2xC1OE=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=WVoT2uzXAR9Drlh43JcztKIAvlsyRV8epukdyk3jLTeuPkT/1xW6gYC/FPceIJdbO
	 ERWhV4MxKqwFJVfDL99wogA8CoGb+PYugA112Px9DjTEURCE4bbzcy+1soZqWIEiKb
	 cepRh8vuhiEgbLEYeWECn/Yv+074mU73bmm1E9NM=
From: "phosit at autistici dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/19347] Invariant load not moved out of loop
Date: Wed, 03 Jan 2024 19:35:07 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 4.0.0
X-Bugzilla-Keywords: alias, missed-optimization
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: phosit at autistici dot org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-19347-4-5AYiuYC8qx@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-19347-4@http.gcc.gnu.org/bugzilla/>
References: <bug-19347-4@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=3D19347

--- Comment #10 from Phosit <phosit at autistici dot org> ---
The analysis in my previous comment is wrong.
I don't know why there is no alias-check at -O2.
Also the loop _is_ removed at -O3.=