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 9E4A03857400; Mon, 13 Feb 2023 20:37:37 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9E4A03857400
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1676320657;
	bh=UCS9fuf6nowJeM3TvESRoH/ewdnVFyo/Eo0+X8Rs718=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=xej6+g1mc5sj/SCqNDx//SAZ5v7mb9IdBAyD2WR70hNzAa8PiEAKg4kottx5gN/o1
	 iQS8UhNoSvT9x5hhXzt+XaowrfIU+VyVX2lpQuWQk6Oe3ZxOxkKtghOuxHGhGqWnRA
	 s4U0DzoFlOYKE7s24XJzocK4UaAPvG2jAaqV3Sp8=
From: "chip.kerchner at ibm dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/108757] We do not simplify (a - (N*M)) / N + M
 -> a / N
Date: Mon, 13 Feb 2023 20:37:37 +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: 13.0
X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: chip.kerchner at ibm dot com
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-108757-4-OHj93Ukog8@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-108757-4@http.gcc.gnu.org/bugzilla/>
References: <bug-108757-4@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=3D108757

--- Comment #16 from Chip Kerchner <chip.kerchner at ibm dot com> ---
Dang copy and paste issue...  This is what I meant.

unsigned long int
foo (unsigned long int a)
{
  return (a + (N*M)) / N - M;
}=