From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id F3ADC3858439; Mon, 24 Oct 2022 02:33:42 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org F3ADC3858439 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1666578823; bh=s0KyEj55VlbymUy/5Wh58zeKizeR/WihqwVFdLsliOI=; h=From:To:Subject:Date:In-Reply-To:References:From; b=SFyQxDnxoZEIJWepthZaYJfzqG46qHYgbpBwepr/kPxxq8UpAw6goeQCLmw+nVAay Evq1Q5ASYem5TqzwEXvaYtYnYpVTorqqzmKIAb31LDE0sGQ7bwDh1ojmvoIZfM89bB aS4kcEbDRZ9L+PThXFbQvFmVGgfRUD/y/CW85bRw= From: "unlvsur at live dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/107367] All standard library algorithms should optimize to pointers internally when they are contiguous iterators after C++20 Date: Mon, 24 Oct 2022 02:33:42 +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: 13.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: unlvsur at live dot com 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=3D107367 --- Comment #1 from cqwrteur --- This optimization will prevent duplications of templates over iterators and pointers. (vector::iterator and int* duplications for example) For example: https://godbolt.org/z/9zEajxxa8 vs https://godbolt.org/z/n61vEddj1 579 vs 879=