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 A71F83858D28; Fri, 29 Dec 2023 01:16:43 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A71F83858D28
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1703812603;
	bh=1CmLp/qLgIl5ryjkxetYUQgncqrwSM9ILUffMifdZaA=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=dwmCcXAI6xY1KwIO3GWp3VuLAIy8YKQpw2Rh4qfjt7Ce1FY9bBu7mQVjpmojEuSVs
	 wWPFqJEKYW2PoViQc3jB1fCaVXFve7UXrGAmkY4YlnIsEzTn9dwLaJ+nZ4kto574Ab
	 mOc0NkgOcUdktZw1kXb8yTsWwHmXGbGJHL2Ny+lE=
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/113130] `abs(a) == b` could be expanded as `(a == b
 || a == -b)`
Date: Fri, 29 Dec 2023 01:16:43 +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: missed-optimization
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: pinskia at gcc dot gnu.org
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: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-113130-4-BjOslkWCuD@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-113130-4@http.gcc.gnu.org/bugzilla/>
References: <bug-113130-4@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=3D113130

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Oh right but the following testcase it should be valid to do and not worry
about INT_MIN either:
```
int f(int a, unsigned short c)
{
 // c =3D 1;
  int b =3D a > 0 ? a : -a;
  return b =3D=3D c;
}

int f1(int a, unsigned short c)
{
 // c =3D 1;
  return a =3D=3D -c || a =3D=3D c;
}
```=