[PATCH]: Enable use of AltiVec regs for simd-2.C

[Hartmut Penner]

Aldy wrote:
> Won't this test fail on ppc64-linux systems without altivec?

That's the signal handler for. It setup a SIGILL signal handler
and executes a vor r0,r0,r0. On ppc64-linux systems without
AltiVec this causes a sigill signal, which does a exit(0).
      Hartmut