public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/20408] Unnecessary code generated for empty structs
Date: Fri, 12 Feb 2021 02:30:16 +0000	[thread overview]
Message-ID: <bug-20408-4-c1xSLMR6pf@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-20408-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=20408

--- Comment #25 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:

https://gcc.gnu.org/g:031e97207463710797625382baff112b6c3ade51

commit r10-9362-g031e97207463710797625382baff112b6c3ade51
Author: Jason Merrill <jason@redhat.com>
Date:   Mon Feb 8 17:04:03 2021 -0500

    c++: generic lambda, fn* conv, empty class [PR98326]

    Here, in the thunk returned from the captureless lambda conversion to
    pointer-to-function, we try to pass through invisible reference parameters
    by reference, without doing a copy.  The empty class copy optimization was
    messing that up.

    gcc/cp/ChangeLog:

            PR c++/98326
            PR c++/20408
            * cp-gimplify.c (simple_empty_class_p): Don't touch an invisiref
            parm.

    gcc/testsuite/ChangeLog:

            PR c++/98326
            * g++.dg/cpp1y/lambda-generic-empty1.C: New test.

  parent reply	other threads:[~2021-02-12  2:30 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-20408-4@http.gcc.gnu.org/bugzilla/>
2020-12-09 13:53 ` jason at gcc dot gnu.org
2021-02-09  1:52 ` cvs-commit at gcc dot gnu.org
2021-02-12  2:30 ` cvs-commit at gcc dot gnu.org [this message]
     [not found] <bug-20408-9525@http.gcc.gnu.org/bugzilla/>
2007-11-26 14:17 ` steven at gcc dot gnu dot org
2007-11-27  9:40 ` rguenth at gcc dot gnu dot org
2005-03-10 15:48 [Bug middle-end/20408] New: Unnessasary " chris at bubblescope dot net
2005-03-10 17:31 ` [Bug middle-end/20408] Unnecessary " pinskia at gcc dot gnu dot org
2005-03-10 17:35 ` pinskia at gcc dot gnu dot org
2005-09-04 16:26 ` rguenth at gcc dot gnu dot org
2005-09-04 16:37 ` rguenth at gcc dot gnu dot org
2005-09-04 17:12 ` rguenth at gcc dot gnu dot org
2005-09-05 10:36 ` rguenth at gcc dot gnu dot org
2005-09-05 10:48 ` rguenth at gcc dot gnu dot org
2005-09-05 12:38 ` rguenth at gcc dot gnu dot org

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=bug-20408-4-c1xSLMR6pf@http.gcc.gnu.org/bugzilla/ \
    --to=gcc-bugzilla@gcc.gnu.org \
    --cc=gcc-bugs@gcc.gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).