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NEON/BesselFunctions.h
1 #ifndef EIGEN_NEON_BESSELFUNCTIONS_H
2 #define EIGEN_NEON_BESSELFUNCTIONS_H
3 
4 namespace Eigen {
5 namespace internal {
6 
7 #if EIGEN_HAS_ARM64_FP16_VECTOR_ARITHMETIC
8 
9 #define NEON_HALF_TO_FLOAT_FUNCTIONS(METHOD) \
10 template <> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE \
11 Packet8hf METHOD<Packet8hf>(const Packet8hf& x) { \
12  const Packet4f lo = METHOD<Packet4f>(vcvt_f32_f16(vget_low_f16(x))); \
13  const Packet4f hi = METHOD<Packet4f>(vcvt_f32_f16(vget_high_f16(x))); \
14  return vcombine_f16(vcvt_f16_f32(lo), vcvt_f16_f32(hi)); \
15 } \
16  \
17 template <> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE \
18 Packet4hf METHOD<Packet4hf>(const Packet4hf& x) { \
19  return vcvt_f16_f32(METHOD<Packet4f>(vcvt_f32_f16(x))); \
20 }
21 
22 NEON_HALF_TO_FLOAT_FUNCTIONS(pbessel_i0)
23 NEON_HALF_TO_FLOAT_FUNCTIONS(pbessel_i0e)
24 NEON_HALF_TO_FLOAT_FUNCTIONS(pbessel_i1)
25 NEON_HALF_TO_FLOAT_FUNCTIONS(pbessel_i1e)
26 NEON_HALF_TO_FLOAT_FUNCTIONS(pbessel_j0)
27 NEON_HALF_TO_FLOAT_FUNCTIONS(pbessel_j1)
28 NEON_HALF_TO_FLOAT_FUNCTIONS(pbessel_k0)
29 NEON_HALF_TO_FLOAT_FUNCTIONS(pbessel_k0e)
30 NEON_HALF_TO_FLOAT_FUNCTIONS(pbessel_k1)
31 NEON_HALF_TO_FLOAT_FUNCTIONS(pbessel_k1e)
32 NEON_HALF_TO_FLOAT_FUNCTIONS(pbessel_y0)
33 NEON_HALF_TO_FLOAT_FUNCTIONS(pbessel_y1)
34 
35 #undef NEON_HALF_TO_FLOAT_FUNCTIONS
36 #endif
37 
38 BF16_PACKET_FUNCTION(Packet4f, Packet4bf, pbessel_i0)
39 BF16_PACKET_FUNCTION(Packet4f, Packet4bf, pbessel_i0e)
40 BF16_PACKET_FUNCTION(Packet4f, Packet4bf, pbessel_i1)
41 BF16_PACKET_FUNCTION(Packet4f, Packet4bf, pbessel_i1e)
42 BF16_PACKET_FUNCTION(Packet4f, Packet4bf, pbessel_j0)
43 BF16_PACKET_FUNCTION(Packet4f, Packet4bf, pbessel_j1)
44 BF16_PACKET_FUNCTION(Packet4f, Packet4bf, pbessel_k0)
45 BF16_PACKET_FUNCTION(Packet4f, Packet4bf, pbessel_k0e)
46 BF16_PACKET_FUNCTION(Packet4f, Packet4bf, pbessel_k1)
47 BF16_PACKET_FUNCTION(Packet4f, Packet4bf, pbessel_k1e)
48 BF16_PACKET_FUNCTION(Packet4f, Packet4bf, pbessel_y0)
49 BF16_PACKET_FUNCTION(Packet4f, Packet4bf, pbessel_y1)
50 
51 } // namespace internal
52 } // namespace Eigen
53 
54 #endif // EIGEN_NEON_BESSELFUNCTIONS_H
Namespace containing all symbols from the Eigen library.