public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "madhur4127 at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/109686] New: Errorneous infinite loop detection (-Winfinite-recursion)
Date: Mon, 01 May 2023 13:57:53 +0000	[thread overview]
Message-ID: <bug-109686-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109686

            Bug ID: 109686
           Summary: Errorneous infinite loop detection
                    (-Winfinite-recursion)
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: madhur4127 at gmail dot com
  Target Milestone: ---

This code: 

```
#define myassert(x) \
    do { \
        if (! (x) ) \
        abort(); \
    }  while (false)

static void recursive(int n) {
    myassert(n > 0);
    recursive(n - 1);
    printf("%d\n", n);
}
```

should not result in infinite recursion. Assert fails for all non-positive
integers. For positive numbers it counts down to 0 and then fails.

This affect GCC12, GCC13 and trunk: https://compiler-explorer.com/z/57qrnzdEK

             reply	other threads:[~2023-05-01 13:57 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-01 13:57 madhur4127 at gmail dot com [this message]
2023-05-01 15:47 ` [Bug middle-end/109686] " arsen at gcc dot gnu.org
2023-05-01 16:04 ` madhur4127 at gmail dot com
2023-05-01 16:08 ` arsen 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-109686-4@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).