[Bug ipa/63576] [5 Regression] ICE : in ipa_merge_profiles, at ipa-utils.c:540 during Firefox LTO/PGO build

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63576

--- Comment #5 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
I don't seem to be able to make sense of Ilya's logic in the probability
calculation (incrementing the count with bb->count seem wrong). 
Will try to update his patch today.