message: Disambiguate vecpopcnt for (u)dword2.
diff: @@ -363,10 +363,12 @@ VSX_FINLINE(Tvec) vec_popcntu(const Tvec2& a) \
  VSX_IMPL_POPCNTU(vec_uchar16, vec_char16, vec_uchar16_c);
  VSX_IMPL_POPCNTU(vec_ushort8, vec_short8, vec_ushort8_c);
  VSX_IMPL_POPCNTU(vec_uint4, vec_int4, vec_uint4_c);
  +VSX_IMPL_POPCNTU(vec_udword2, vec_dword2, vec_udword2_c);
  // redirect unsigned types
  VSX_REDIRECT_1RG(vec_uchar16, vec_uchar16, vec_popcntu, vec_popcnt)
  VSX_REDIRECT_1RG(vec_ushort8, vec_ushort8, vec_popcntu, vec_popcnt)
  VSX_REDIRECT_1RG(vec_uint4, vec_uint4, vec_popcntu, vec_popcnt)
  +VSX_REDIRECT_1RG(vec_udword2, vec_udword2, vec_popcntu, vec_popcnt)
  // converts between single and double precision
  VSX_REDIRECT_1RG(vec_float4, vec_double2, vec_cvfo, __builtin_vsx_xvcvdpsp)
  