fe_mul_impl
fe_mul_impl(h->v, f->v, g->v);
fe_mul_impl(h->v, f->v, g->v);
fe_mul_impl(h->v, f->v, g->v);
fe_mul_impl(h->v, f->v, g->v);
fe_mul_impl(h->v, f->v, g->v);
fe_mul_impl(h->v, f->v, g->v);