From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 17D823858D37; Tue, 16 Apr 2024 16:15:48 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 17D823858D37 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1713284149; bh=gJ6t+QJ+hp5WeBtwcdq4ik7YhwKtuIDbicKOQZia+qs=; h=From:To:Subject:Date:In-Reply-To:References:From; b=ASNg67J0LfN04m4CNOdO+eOg7YjORbKuLLd/pfA5CoPJHMnnxyrzE+qKPTpGXp6ot x/qVB4JD699MvJp6NP3N1HHizBERBiEA0f6fB1tewyd0gyWlOW7chEyY4Ed4XBZV6u mASotHOyeGXkVONfQrx80UuPmt7KxUAhNOWcAWHc= From: "segher at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/114732] ge can't be reversed to unlt for bcd compares Date: Tue, 16 Apr 2024 16:15:48 +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: X-Bugzilla-Severity: normal X-Bugzilla-Who: segher at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: guihaoc 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=3D114732 --- Comment #4 from Segher Boessenkool --- (In reply to Segher Boessenkool from comment #3) > -- Bit 0 is all-true, bit 2 is all-false, like in the vcmp* insns. (And bits 1 and 3 are set to zeroes for those insns. So it is all one-hot there as well. But the meaning is different.)=