From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 88F463858CDA; Fri, 28 Apr 2023 08:25:28 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 88F463858CDA DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1682670328; bh=vKU3eHuOxwPUD13hxZXzWa5PUjo3/nVpe5BF43DTCvs=; h=From:To:Subject:Date:In-Reply-To:References:From; b=TuzxE1eW8sn4OCKjz6hk3/v56VzTDNTn+Ak8ty7ZvMEUT4tsQg67p0cfW+GFR33NR yPwwqXQEnaeg6ufKkIWfXkGfB5I6NwvooNXtg7Q9q4kEnuV3xELYKU7uSw4HP3sjVY RkEB7ttIY6A30/Ulvp4glEIFr+vjLR7mMY/ihWbw= From: "rsandifo at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/109636] [14 Regression] ICE: in paradoxical_subreg_p, at rtl.h:3205 with -O -mcpu=a64fx Date: Fri, 28 Apr 2023 08:25:26 +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: 14.0 X-Bugzilla-Keywords: ice-on-valid-code, needs-bisection X-Bugzilla-Severity: normal X-Bugzilla-Who: rsandifo at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: ktkachov at gcc dot gnu.org X-Bugzilla-Target-Milestone: 14.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109636 --- Comment #6 from rsandifo at gcc dot gnu.org --- Ugh. I guess we've got no option but to force the original subreg into a fresh register, but that's going to pessimise cases where arithmetic is done on tuple types. Perhaps we should just expose the SVE operation as a native V2DI one. Handling predicated ops would be a bit more challenging though.=