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 1C9E03858C2A; Fri, 19 Jan 2024 21:13:12 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1C9E03858C2A
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1705698792;
	bh=LfT6t9nGRrjZqxFQHxj6dMnaiyzuT5aieeBSBi187Ug=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=x2vYtIl5rNb6DxyBg4yi20a2wK7NX01LxSrdwTMY7sKtBUIq90qnxOch3/f8k8Nty
	 3JaG5PLHf0azQzH7rHb1eDege7TqGGwQRRHnRT3ipZM3MIcrRgDYgpSjZXgch9lLpB
	 UNEI0oQmwCVqVM5eVNiPBQkyw/m0VspKHESk7muo=
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/113508] widen_ssumm3 documentation needs to mention
 which mode is m here
Date: Fri, 19 Jan 2024 21:13:11 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: middle-end
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: documentation
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: pinskia at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-113508-4-YMHAFUqwa8@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-113508-4@http.gcc.gnu.org/bugzilla/>
References: <bug-113508-4@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=3D113508

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The current documentation reads:
```
Operands 0 and 2 are of the same mode, which is wider than the mode of oper=
and
1. Add operand 1 to operand 2 and place the widened result in operand 0. (T=
his
is used express accumulation of elements into an accumulator of a wider mod=
e.)
```

The m mode here  is the smaller mode.

So it would be better if it read:
```
Operands 0 and 2 are of the same mode, which is wider than the mode (m) of
operand 1. Add operand 1 to operand 2 and place the widened result in opera=
nd
0. (This is used express accumulation of elements into an accumulator of a
wider mode.)
```

All of the other ones are still the smaller mode too.=