Eigen::internal::DividerHelper< 64, T > Struct Template Reference

#include <TensorIntDiv.h>

Static Public Member Functions
static EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE uint64_t	computeMultiplier (const int log_div, const T divider)

Member Function Documentation

computeMultiplier()

template<typename T >

static EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE uint64_t Eigen::internal::DividerHelper< 64, T >::computeMultiplier ( const int  log_div, const T  divider  )

inlinestatic

                                                                                                              {
#if EIGEN_HAS_BUILTIN_INT128 && !defined(EIGEN_GPU_COMPILE_PHASE) && !defined(SYCL_DEVICE_ONLY)
    return static_cast<uint64_t>((static_cast<__uint128_t>(1) << (64 + log_div)) / static_cast<__uint128_t>(divider) -
                                 (static_cast<__uint128_t>(1) << 64) + 1);
#else
    const uint64_t shift = 1ULL << log_div;
    TensorUInt128<uint64_t, uint64_t> result =
        TensorUInt128<uint64_t, static_val<0> >(shift, 0) / TensorUInt128<static_val<0>, uint64_t>(divider) -
        TensorUInt128<static_val<1>, static_val<0> >(1, 0) + TensorUInt128<static_val<0>, static_val<1> >(1);
    return static_cast<uint64_t>(result);
#endif
  }

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The documentation for this struct was generated from the following file:

• TensorIntDiv.h