RFC: AutoFDO GCOV Profile Format Version 4

[Andrew Pinski]

On Thu, Apr 23, 2026 at 1:58 AM Jose E. Marchesi via Gcc
<gcc@gcc.gnu.org> wrote:
>
>
> > Hi all,
> >
> > Per prior discussions, here is the specification we are proposing for
> > version 4 of the AutoFDO GCOV profile format. This is a complete re-design
> > focused around being a backwards-compatible and extensible format which
> > can be partially read by the compiler.
>
> Could you please send me (off list) a sample data file, as complete as
> possible?  Thanks!

Or maybe it is a good idea to create a wiki page with this description
and attach a sample data file for folks to look at.

Thanks,
Andrew