https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119322
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
__int128 a{3}, b{4};
gmult2((u64*)&a, (u64*)&b);
...
V[0] = X[0];
V[1] = X[1];
is a clear aliasing violation. Are you at least building with
-fno-strict-aliasing?
