[Bug bootstrap/82831] [8 Regression] Broken PGO bootstrap on i586-linux-gnu after r254379

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82831

--- Comment #12 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> IMO turning random hot block into cold is not safe operatoin after
> bbro is finished and thus Martin's patch preventing it is good.  We can
> indeed track down the real cause (I plan to iterate over profile updating bugs 
> next week)

We will never track the real cause if we paper over it...