[Bug c++/108506] bit_cast from 32-byte vector generates worse code than memcpy

[m.cencora at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108506

--- Comment #1 from m.cencora at gmail dot com ---
"that is the only difference between the two funcs"
I mean that deserialize and deserialize2 differ only by the way they perform
store from v32uc to output (bit_cast vs memcpy)