From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id C47E13858C35; Mon, 6 May 2024 11:24:52 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C47E13858C35 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1714994692; bh=YBtNkgL6iq3funKSnEfd/STNycxtov24QoZT1dnN00U=; h=From:To:Subject:Date:In-Reply-To:References:From; b=tFuV658JD1i01YBEZHA7si9KlYxnrMYhHzDgoiioq+d8pQMxD3dP8TT0Gztx0EdjO q4bQuWyEBpYCpVbn0pL8GtbSFW8f+wZNKQL4YDeOGw9eSSSha7NkBL3JHfEWUqPcou Cc33KjfgzPUXjwMoUqdgaHunDM+COl84/3wRsMSc= From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/114958] use __builtin_shufflevector for std::experimental::simd split and concat (at least the common cases) to enable better optimizations Date: Mon, 06 May 2024 11:24:52 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: libstdc++ X-Bugzilla-Version: 15.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: mkretz 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=3D114958 --- Comment #4 from Jakub Jelinek --- Strange, the __builtin_shufflevector in GCC has been added for Clang compatibility. __builtin_shuffle is the original native GCC builtin (which Clang doesn't implement).=