[Bug target/111107] i686-w64-mingw32 does not realign stack when __attribute__((aligned)) or __attribute__((vector_size)) are used

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111107

--- Comment #16 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Why use STACK_REALIGN_DEFAULT rather than PREFERRED_STACK_BOUNDARY_DEFAULT?

We know that it works since Solaris has used it for ages, so this alternate way
could be deemed riskier.  But no strong opinion, if the consensus is to use the
latter, then so be it.