[Bug c++/105884] A possible optimization bug when uint64_t is used with -O2/-O3.

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105884

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I am 99% sure this is an aliasing issue with the code. Try
-fno-strict-aliasing.