[Bug tree-optimization/77536] Vectorizer not maintaining relationship of relative block frequencies in absence of real profile data

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77536

amker at gcc dot gnu.org changed:

           What    |Removed                     |Added
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                 CC|                            |amker at gcc dot gnu.org

--- Comment #4 from amker at gcc dot gnu.org ---
Looks like generic loop unrolling code used by predcom spends quite a lot
maintaining profiling counter, I will check if that's correct and we shall do
the same in vectorizer.  At least simply scaling down vect_loop is wrong. 
Thanks.