[Bug ipa/65298] [5 Regression] lto1: ICE: in operator[], at vec.h:736 during LTO/PGO Firefox build

[hubicka at ucw dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65298

--- Comment #4 from Jan Hubicka <hubicka at ucw dot cz> ---
> ix=1 and m_vecpfx.m_num=1 in this case.
> Let me know what other debugging info may be useful to you.

This is primarily Martin Jambor's area, so he may beat me.  I will try to take
a look tonight and see if I can reproduce it locally.
Do you know if the function in question has two arguments?

Honza