[Bug c/97445] Some fonctions marked static inline in Linux kernel are not inlined

[christophe.leroy at csgroup dot eu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97445

--- Comment #23 from Christophe Leroy <christophe.leroy at csgroup dot eu> ---
(In reply to Jan Hubicka from comment #19)
> 
> It is always possible to always_inline functions that are intended to be
> always inlined.
> Honza

Yes and I sent a patch for that to the Linux kernel, but what I would like to
understand is why does GCC 10 completely fails to inline that while GCC 9 was
doing things properly ?

Find attached the same temp files generated with GCC 9. GCC9 sees that
get_order() is not used and doesn't generate it.