template<class Extension,class Info>
struct call<nbtrue_,tag::simd_(tag::arithmetic_,Extension),Info>
{
typedef int32_t result_type;
NT2_FUNCTOR_CALL_DISPATCH(
1,
typename nt2::meta::scalar_of<A0>::type,
(3, (float,double,arithmetic_))
)
NT2_FUNCTOR_CALL_EVAL_IF(1, float)
{
typedef typename meta::as_real<A0>::type type;
int32_t r = _mm256_movemask_ps(isnez(a0));
return (r&1)+((r>>1)&1)+((r>>2)&1)+(r>>3&1)+((r>>4)&1)+((r>>5)&1)+(r>>6&1)+(r>>7);
// return __builtin_popcount(_mm_movemask_ps(isnez(cast<type>(a0))));
}
NT2_FUNCTOR_CALL_EVAL_IF(1, double)
{
int32_t r = _mm256_movemask_pd(isnez(a0));
return (r&1)+(r>>1&1)+((r>>2)&1)+(r>>3);
}
NT2_FUNCTOR_CALL_EVAL_IF(1, arithmetic_)
{
typedef typename meta::scalar_of<A0>::type sctype;
typedef typename simd::native<sctype, tag::sse_ > svtype;
svtype a00 = { _mm256_extractf128_si256(a0, 0)};
svtype a01 = { _mm256_extractf128_si256(a0, 1)};
return nbtrue(a00)+nbtrue(a01);
((simd_<uint8_<A0>,tag::xop_>))
);
namespace nt2 { namespace ext
{
template<class Dummy>
struct call<tag::sqrt_(tag::simd_<tag::uint8_, tag::xop_)),
tag::cpu_, Dummy> : callable
{
template<class Sig> struct result;
template<class This,class A0>
struct result<This(A0)> : meta::strip<A0>{};//
NT2_FUNCTOR_CALL(1)
{
A0 const na = isnez(a0);
A0 n = add(shri(a0, 4), Four<A0>());
A0 n1 = shri(n+a0/n, 1);
A0 msk = b_and(isle(n1,n), na);
n = select(msk,n1,n);
n1 = sqr(n);
msk = b_or(isgt(n1,a0), b_and(iseqz(n1), na));
n = seladd( msk, n, Mone<A0>());
return seladd(na, Zero<A0>(), n);
}
};
} }
/////////////////////////////////////////////////////////////////////////////
