https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114080
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The alignment requirement for int128_t has always been 16byte aligned.
So if you cast an unaligned pointer to int128_t pointer you run into c
undefined behavior.
Just happens now gcc will use the sse registers to do things like xor and such
and the sse loads trap on unaligned.
