public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/60157] adding -mstrict-align for i386 and x86_64 architecture
Date: Mon, 08 Apr 2024 00:34:24 +0000	[thread overview]
Message-ID: <bug-60157-4-vlstlCmu8v@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-60157-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60157

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |diagnostic

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>-mstrict-align

Will not help in this case really as GCC does not warn.

Note clang does warn with -mstrict-align though:
```
<source>:15:18: warning: field C within 'cond_mutex_t' is less aligned than
'pthread_cond_t' and is usually due to 'cond_mutex_t' being packed, which can
lead to unaligned accesses [-Wunaligned-access]
   15 |   pthread_cond_t C;
      |                  ^
```

But I suspect GCC should warn even without strict alignment really.

      parent reply	other threads:[~2024-04-08  0:34 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-12  8:50 [Bug target/60157] New: " vinxxe at gmail dot com
2014-02-12  8:51 ` [Bug target/60157] " vinxxe at gmail dot com
2024-04-08  0:34 ` pinskia at gcc dot gnu.org [this message]

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-60157-4-vlstlCmu8v@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).