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 430CE3857B81; Wed, 15 Jun 2022 13:32:28 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 430CE3857B81
From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/105983] Failure to optimize (b != 0) && (a >=
 b) as well as the same pattern with binary and
Date: Wed, 15 Jun 2022 13:32:28 +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: 13.0
X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: jakub at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: jakub at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: assigned_to bug_status
Message-ID: <bug-105983-4-x5UYLErfnk@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-105983-4@http.gcc.gnu.org/bugzilla/>
References: <bug-105983-4@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
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Wed, 15 Jun 2022 13:32:28 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105983

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gn=
u.org
             Status|NEW                         |ASSIGNED

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
--- gcc/match.pd.jj     2022-06-15 12:52:04.640981511 +0200
+++ gcc/match.pd        2022-06-15 15:28:55.916225336 +0200
@@ -2379,14 +2379,14 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)

 /* y =3D=3D XXX_MIN || x < y --> x <=3D y - 1 */
 (simplify
- (bit_ior:c (eq:s @1 min_value) (lt:s @0 @1))
+ (bit_ior:c (eq:s @1 min_value) (lt:cs @0 @1))
   (if (INTEGRAL_TYPE_P (TREE_TYPE (@1))
        && TYPE_OVERFLOW_WRAPS (TREE_TYPE (@1)))
   (le @0 (minus @1 { build_int_cst (TREE_TYPE (@1), 1); }))))

 /* y !=3D XXX_MIN && x >=3D y --> x > y - 1 */
 (simplify
- (bit_and:c (ne:s @1 min_value) (ge:s @0 @1))
+ (bit_and:c (ne:s @1 min_value) (ge:cs @0 @1))
   (if (INTEGRAL_TYPE_P (TREE_TYPE (@1))
        && TYPE_OVERFLOW_WRAPS (TREE_TYPE (@1)))
   (gt @0 (minus @1 { build_int_cst (TREE_TYPE (@1), 1); }))))

fixes this.=