From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id CACBE3857716; Sun, 14 May 2023 10:01:09 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CACBE3857716 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1684058469; bh=zl9tK+UMdOSPqXnaQbI8l5WmHrPBx01+kI8ThJL006k=; h=From:To:Subject:Date:In-Reply-To:References:From; b=xXz585eHWcktyqz8ATfQtVMH0uZhEQOWNChXFPQvUX3feV7GufQzFaH7pHtxlP+ga EWRW+KqWv+0JFgvcHSqPS/tcxlHhlPpeiumkDJI1vSDVNM62ppKNvFKombKrG8Opft sp3b4K1Eask3QFoUOipg8ocTeKhGhWZLmuFur5fA= From: "hubicka at ucw dot cz" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/109849] suboptimal code for vector walking loop Date: Sun, 14 May 2023 10:01:09 +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: 13.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: hubicka at ucw dot cz 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: 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=3D109849 --- Comment #5 from Jan Hubicka --- > Actually why didn't we copy the loop header in the first place? Because it is considered to be do-while loop already (thanks to the in-loop conitional, do_while_loop_p is happy).=