From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id C3D723858436; Wed, 19 Jul 2023 11:40:15 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C3D723858436 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1689766815; bh=zqf393xsRvHeVuBs6NN4D8jw4TR0g6BBWg+uYRIBt98=; h=From:To:Subject:Date:In-Reply-To:References:From; b=FEMIt2Vz+ssNk9rZojpTkSOsWV1lALBp2FWMSIx/uXRiQS7YKuqnfu9uwWsSFgdQd VTe+oD8Fk6E4sv1V0XBuNrxFI5T7ZaJ+PnSGpneEktoBy6RpYHMRfSFLdxUE+/DZsL 8BfREKQflW7Y1kdRRpFYuSQ36IKfaso4c2sc36cc= From: "redi at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/110739] std::format for chrono types compiles very slowly Date: Wed, 19 Jul 2023 11:40:15 +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: 13.1.1 X-Bugzilla-Keywords: compile-time-hog X-Bugzilla-Severity: normal X-Bugzilla-Who: redi at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: redi at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: assigned_to everconfirmed bug_status cf_reconfirmed_on attachments.created 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=3D110739 Jonathan Wakely changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu= .org Ever confirmed|0 |1 Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2023-07-19 --- Comment #1 from Jonathan Wakely --- Created attachment 55579 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D55579&action=3Dedit Instantiate less code for chrono formatters * include/bits/chrono_io.h (__formatter_chrono): Use if-constexpr to avoid instantiating function bodies for types that can never be used with those functions. This patch helps a little bit, but less than I'd hoped it would.=