From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id B2D663885512; Wed, 26 Oct 2022 19:52:04 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B2D663885512 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1666813924; bh=LM/OdU9zQZQiug5EF00R6UPK4XDALwJUuu1Sb3hI39s=; h=From:To:Subject:Date:In-Reply-To:References:From; b=l7IH5LbMzOObPJWEjVRf2j4OGn7LFg93qu1G8Ive1YwZi787eoS+8+0WswI/yBDg+ BKD00EzkTuVci1PtPYxudHOHLvZwRZuuXznc6k4LXA/Lf9lc/2Y2rNrWk2U/goGifx TWIx9piVdYE6vOa7W3Vr6Dq3A0oa0q5TCxJmggY4= From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug other/79469] Feature request: provide `__builtin_assume` builtin function to allow more aggressive optimizations and to match clang Date: Wed, 26 Oct 2022 19:52:04 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: other X-Bugzilla-Version: unknown X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: NEW 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: cc 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=3D79469 Jakub Jelinek changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #5 from Jakub Jelinek --- Just use the attribute, I'd prefer not to add the builtin, especially when clang makes it pretty much useless (as it warns about side-effects in the a= rg, doesn't evaluate them and ignores it completely in that case).=