From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 5264438515F2; Mon, 16 Aug 2021 10:33:33 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 5264438515F2 From: "unlvsur at live dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/101197] __builtin_memmove does not perform constant optimizations Date: Mon, 16 Aug 2021 10:33:33 +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: 12.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: unlvsur at live dot com X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: marxin 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 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 Aug 2021 10:33:33 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101197 --- Comment #7 from cqwrteur --- (In reply to Jakub Jelinek from comment #6) > Shouldn't that be a different PR with details? I mean, this PR is that we > should expand shorter memmove inline even if the regions do overlap. clang also has __builtin_memcpy_inline and __builtin_memmove_inline, __builtin_memset_inline that only accepts constant. Do we need something li= ke that?=