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 tree-optimization/114952] False positive -Wmaybe-uninitialized starting at -O3 in libbpf Date: Sun, 05 May 2024 22:21:31 +0000 [thread overview] Message-ID: <bug-114952-4-aynIOyH3ai@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-114952-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114952 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Most likely GCC does not know errno is non-zero after the call to elf_open and checking `fd < 0`. Adding: if (ret == 0) __builtin_unreachable(); After the assignment of `ret = -errono;` fixes the warning.
next prev parent reply other threads:[~2024-05-05 22:21 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-05-05 22:15 [Bug c/114952] New: " kacper.slominski72 at gmail dot com 2024-05-05 22:21 ` pinskia at gcc dot gnu.org [this message] 2024-05-07 12:43 ` [Bug tree-optimization/114952] " sjames at gcc dot gnu.org 2024-05-07 18:45 ` pinskia at gcc dot gnu.org 2024-06-08 8:43 ` manu 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-114952-4-aynIOyH3ai@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: linkBe 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).