https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114412

--- Comment #4 from Filip Kastl <pheeck at gcc dot gnu.org> ---
(In reply to Tamar Christina from comment #3)
> Hi Filip,
> 
> Do you generate these runs with counters based PGO or compiler
> instrumentation?
> 
> Just so I know before I start trying to reproduce them.

Hi Tamar,

By counters you mean some sort of hardware counters? I didn't know there were
multiple ways to do PGO with GCC.

I think that the answer to your question is "compiler instrumentation". I just
do -fprofile-generate, run the instrumented binary and then -fprofile-use.

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