[Bug middle-end/55653] Unnecessary initialization of vector register

[rearnsha at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55653

--- Comment #3 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
On the secondary issue of initializing FP vectors to zero, we now generate for

typedef double f __attribute__((vector_size(16)));

f g()
{
  f a = {0.0, 0.0};
  return a;
}

g:
        movi    v0.2d, 0
        ret