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 CD4A83858433; Wed,  5 Jan 2022 20:54:42 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CD4A83858433
From: "law at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/103722] [12 Regression] ICE in extract_constrain_insn
 building glibc for SH4
Date: Wed, 05 Jan 2022 20:54:42 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: law at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P4
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 12.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: everconfirmed bug_status cf_reconfirmed_on cc
Message-ID: <bug-103722-4-XRf4nzyIlz@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-103722-4@http.gcc.gnu.org/bugzilla/>
References: <bug-103722-4@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, 05 Jan 2022 20:54:42 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103722

Jeffrey A. Law <law at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2022-01-05
                 CC|                            |law at gcc dot gnu.org

--- Comment #2 from Jeffrey A. Law <law at gcc dot gnu.org> ---
I'll confirm.  My tester is seeing the same failure building the linux kern=
el
on sh4/sh4eb and was bisected to the same commit.

Isn't a move cost 2 special to the old reload pass, causing it to avoid var=
ious
checks on simple move insns?  If so, wouldn't returning any other value be
helpful, and something closer to 2 than 7 would perturb the generated code
less?

Regardless, I'd approve the patch as-is if you submit it.=