https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77359
--- Comment #18 from David Edelsohn <dje at gcc dot gnu.org> --- As long as GCC claims that it can make a distinction between the various alignments and macros, the GCC code generation must continue to honor it. On AIX, at least, the ABI claims a different stack alignment with and without Altivec.
