public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "dmalcolm at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug analyzer/99860] New: RFE: analyzer does not respect "restrict"
Date: Wed, 31 Mar 2021 23:10:08 +0000	[thread overview]
Message-ID: <bug-99860-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99860

            Bug ID: 99860
           Summary: RFE: analyzer does not respect "restrict"
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: analyzer
          Assignee: dmalcolm at gcc dot gnu.org
          Reporter: dmalcolm at gcc dot gnu.org
  Target Milestone: ---

The analyzer currently is very conservative about aliasing, and assumes that
anything that could be aliased by a pointer gets clobbered when a write occurs
through that pointer.

Am filing this bug to remind me to better support pointers marked with
"restrict".

Probably should also warn about places where the analyzer detects that restrict
isn't being honored.

             reply	other threads:[~2021-03-31 23:10 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-31 23:10 dmalcolm at gcc dot gnu.org [this message]
2021-04-07 15:05 ` [Bug analyzer/99860] " dmalcolm at gcc dot gnu.org
2022-07-27 22:54 ` dmalcolm at gcc dot gnu.org
2023-08-29 22:16 ` cvs-commit at gcc dot gnu.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-99860-4@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).