| // This file is part of Eigen, a lightweight C++ template library |
| // for linear algebra. |
| // |
| // Copyright (C) 2010 Gael Guennebaud <gael.guennebaud@inria.fr> |
| // Copyright (C) 2010 Konstantinos Margaritis <markos@freevec.org> |
| // |
| // This Source Code Form is subject to the terms of the Mozilla |
| // Public License v. 2.0. If a copy of the MPL was not distributed |
| // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| |
| #ifndef EIGEN_COMPLEX_NEON_H |
| #define EIGEN_COMPLEX_NEON_H |
| |
| namespace Eigen { |
| |
| namespace internal { |
| |
| inline uint32x4_t p4ui_CONJ_XOR() |
| { |
| // See bug 1325, clang fails to call vld1q_u64. |
| #if EIGEN_COMP_CLANG || EIGEN_COMP_CASTXML |
| uint32x4_t ret = { 0x00000000, 0x80000000, 0x00000000, 0x80000000 }; |
| return ret; |
| #else |
| static const uint32_t conj_XOR_DATA[] = { 0x00000000, 0x80000000, 0x00000000, 0x80000000 }; |
| return vld1q_u32( conj_XOR_DATA ); |
| #endif |
| } |
| |
| inline uint32x2_t p2ui_CONJ_XOR() |
| { |
| static const uint32_t conj_XOR_DATA[] = { 0x00000000, 0x80000000 }; |
| return vld1_u32( conj_XOR_DATA ); |
| } |
| |
| //---------- float ---------- |
| |
| struct Packet1cf |
| { |
| EIGEN_STRONG_INLINE Packet1cf() {} |
| EIGEN_STRONG_INLINE explicit Packet1cf(const Packet2f& a) : v(a) {} |
| Packet2f v; |
| }; |
| struct Packet2cf |
| { |
| EIGEN_STRONG_INLINE Packet2cf() {} |
| EIGEN_STRONG_INLINE explicit Packet2cf(const Packet4f& a) : v(a) {} |
| Packet4f v; |
| }; |
| |
| template<> struct packet_traits<std::complex<float> > : default_packet_traits |
| { |
| typedef Packet2cf type; |
| typedef Packet1cf half; |
| enum |
| { |
| Vectorizable = 1, |
| AlignedOnScalar = 1, |
| size = 2, |
| HasHalfPacket = 1, |
| |
| HasAdd = 1, |
| HasSub = 1, |
| HasMul = 1, |
| HasDiv = 1, |
| HasNegate = 1, |
| HasAbs = 0, |
| HasAbs2 = 0, |
| HasMin = 0, |
| HasMax = 0, |
| HasSetLinear = 0 |
| }; |
| }; |
| |
| template<> struct unpacket_traits<Packet1cf> |
| { |
| typedef std::complex<float> type; |
| typedef Packet1cf half; |
| typedef Packet2f as_real; |
| enum |
| { |
| size = 1, |
| alignment = Aligned16, |
| vectorizable = true, |
| masked_load_available = false, |
| masked_store_available = false |
| }; |
| }; |
| template<> struct unpacket_traits<Packet2cf> |
| { |
| typedef std::complex<float> type; |
| typedef Packet1cf half; |
| typedef Packet4f as_real; |
| enum |
| { |
| size = 2, |
| alignment = Aligned16, |
| vectorizable = true, |
| masked_load_available = false, |
| masked_store_available = false |
| }; |
| }; |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf pcast<float,Packet1cf>(const float& a) |
| { return Packet1cf(vset_lane_f32(a, vdup_n_f32(0.f), 0)); } |
| template<> EIGEN_STRONG_INLINE Packet2cf pcast<Packet2f,Packet2cf>(const Packet2f& a) |
| { return Packet2cf(vreinterpretq_f32_u64(vmovl_u32(vreinterpret_u32_f32(a)))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf pset1<Packet1cf>(const std::complex<float>& from) |
| { return Packet1cf(vld1_f32(reinterpret_cast<const float*>(&from))); } |
| template<> EIGEN_STRONG_INLINE Packet2cf pset1<Packet2cf>(const std::complex<float>& from) |
| { |
| const float32x2_t r64 = vld1_f32(reinterpret_cast<const float*>(&from)); |
| return Packet2cf(vcombine_f32(r64, r64)); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf padd<Packet1cf>(const Packet1cf& a, const Packet1cf& b) |
| { return Packet1cf(padd<Packet2f>(a.v, b.v)); } |
| template<> EIGEN_STRONG_INLINE Packet2cf padd<Packet2cf>(const Packet2cf& a, const Packet2cf& b) |
| { return Packet2cf(padd<Packet4f>(a.v, b.v)); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf psub<Packet1cf>(const Packet1cf& a, const Packet1cf& b) |
| { return Packet1cf(psub<Packet2f>(a.v, b.v)); } |
| template<> EIGEN_STRONG_INLINE Packet2cf psub<Packet2cf>(const Packet2cf& a, const Packet2cf& b) |
| { return Packet2cf(psub<Packet4f>(a.v, b.v)); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf pnegate(const Packet1cf& a) { return Packet1cf(pnegate<Packet2f>(a.v)); } |
| template<> EIGEN_STRONG_INLINE Packet2cf pnegate(const Packet2cf& a) { return Packet2cf(pnegate<Packet4f>(a.v)); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf pconj(const Packet1cf& a) |
| { |
| const Packet2ui b = vreinterpret_u32_f32(a.v); |
| return Packet1cf(vreinterpret_f32_u32(veor_u32(b, p2ui_CONJ_XOR()))); |
| } |
| template<> EIGEN_STRONG_INLINE Packet2cf pconj(const Packet2cf& a) |
| { |
| const Packet4ui b = vreinterpretq_u32_f32(a.v); |
| return Packet2cf(vreinterpretq_f32_u32(veorq_u32(b, p4ui_CONJ_XOR()))); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf pmul<Packet1cf>(const Packet1cf& a, const Packet1cf& b) |
| { |
| Packet2f v1, v2; |
| |
| // Get the real values of a | a1_re | a1_re | |
| v1 = vdup_lane_f32(a.v, 0); |
| // Get the imag values of a | a1_im | a1_im | |
| v2 = vdup_lane_f32(a.v, 1); |
| // Multiply the real a with b |
| v1 = vmul_f32(v1, b.v); |
| // Multiply the imag a with b |
| v2 = vmul_f32(v2, b.v); |
| // Conjugate v2 |
| v2 = vreinterpret_f32_u32(veor_u32(vreinterpret_u32_f32(v2), p2ui_CONJ_XOR())); |
| // Swap real/imag elements in v2. |
| v2 = vrev64_f32(v2); |
| // Add and return the result |
| return Packet1cf(vadd_f32(v1, v2)); |
| } |
| template<> EIGEN_STRONG_INLINE Packet2cf pmul<Packet2cf>(const Packet2cf& a, const Packet2cf& b) |
| { |
| Packet4f v1, v2; |
| |
| // Get the real values of a | a1_re | a1_re | a2_re | a2_re | |
| v1 = vcombine_f32(vdup_lane_f32(vget_low_f32(a.v), 0), vdup_lane_f32(vget_high_f32(a.v), 0)); |
| // Get the imag values of a | a1_im | a1_im | a2_im | a2_im | |
| v2 = vcombine_f32(vdup_lane_f32(vget_low_f32(a.v), 1), vdup_lane_f32(vget_high_f32(a.v), 1)); |
| // Multiply the real a with b |
| v1 = vmulq_f32(v1, b.v); |
| // Multiply the imag a with b |
| v2 = vmulq_f32(v2, b.v); |
| // Conjugate v2 |
| v2 = vreinterpretq_f32_u32(veorq_u32(vreinterpretq_u32_f32(v2), p4ui_CONJ_XOR())); |
| // Swap real/imag elements in v2. |
| v2 = vrev64q_f32(v2); |
| // Add and return the result |
| return Packet2cf(vaddq_f32(v1, v2)); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf pcmp_eq(const Packet1cf& a, const Packet1cf& b) |
| { |
| // Compare real and imaginary parts of a and b to get the mask vector: |
| // [re(a[0])==re(b[0]), im(a[0])==im(b[0])] |
| Packet2f eq = pcmp_eq<Packet2f>(a.v, b.v); |
| // Swap real/imag elements in the mask in to get: |
| // [im(a[0])==im(b[0]), re(a[0])==re(b[0])] |
| Packet2f eq_swapped = vrev64_f32(eq); |
| // Return re(a)==re(b) && im(a)==im(b) by computing bitwise AND of eq and eq_swapped |
| return Packet1cf(pand<Packet2f>(eq, eq_swapped)); |
| } |
| template<> EIGEN_STRONG_INLINE Packet2cf pcmp_eq(const Packet2cf& a, const Packet2cf& b) |
| { |
| // Compare real and imaginary parts of a and b to get the mask vector: |
| // [re(a[0])==re(b[0]), im(a[0])==im(b[0]), re(a[1])==re(b[1]), im(a[1])==im(b[1])] |
| Packet4f eq = pcmp_eq<Packet4f>(a.v, b.v); |
| // Swap real/imag elements in the mask in to get: |
| // [im(a[0])==im(b[0]), re(a[0])==re(b[0]), im(a[1])==im(b[1]), re(a[1])==re(b[1])] |
| Packet4f eq_swapped = vrev64q_f32(eq); |
| // Return re(a)==re(b) && im(a)==im(b) by computing bitwise AND of eq and eq_swapped |
| return Packet2cf(pand<Packet4f>(eq, eq_swapped)); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf pand<Packet1cf>(const Packet1cf& a, const Packet1cf& b) |
| { return Packet1cf(vreinterpret_f32_u32(vand_u32(vreinterpret_u32_f32(a.v), vreinterpret_u32_f32(b.v)))); } |
| template<> EIGEN_STRONG_INLINE Packet2cf pand<Packet2cf>(const Packet2cf& a, const Packet2cf& b) |
| { return Packet2cf(vreinterpretq_f32_u32(vandq_u32(vreinterpretq_u32_f32(a.v), vreinterpretq_u32_f32(b.v)))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf por<Packet1cf>(const Packet1cf& a, const Packet1cf& b) |
| { return Packet1cf(vreinterpret_f32_u32(vorr_u32(vreinterpret_u32_f32(a.v), vreinterpret_u32_f32(b.v)))); } |
| template<> EIGEN_STRONG_INLINE Packet2cf por<Packet2cf>(const Packet2cf& a, const Packet2cf& b) |
| { return Packet2cf(vreinterpretq_f32_u32(vorrq_u32(vreinterpretq_u32_f32(a.v), vreinterpretq_u32_f32(b.v)))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf pxor<Packet1cf>(const Packet1cf& a, const Packet1cf& b) |
| { return Packet1cf(vreinterpret_f32_u32(veor_u32(vreinterpret_u32_f32(a.v), vreinterpret_u32_f32(b.v)))); } |
| template<> EIGEN_STRONG_INLINE Packet2cf pxor<Packet2cf>(const Packet2cf& a, const Packet2cf& b) |
| { return Packet2cf(vreinterpretq_f32_u32(veorq_u32(vreinterpretq_u32_f32(a.v), vreinterpretq_u32_f32(b.v)))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf pandnot<Packet1cf>(const Packet1cf& a, const Packet1cf& b) |
| { return Packet1cf(vreinterpret_f32_u32(vbic_u32(vreinterpret_u32_f32(a.v), vreinterpret_u32_f32(b.v)))); } |
| template<> EIGEN_STRONG_INLINE Packet2cf pandnot<Packet2cf>(const Packet2cf& a, const Packet2cf& b) |
| { return Packet2cf(vreinterpretq_f32_u32(vbicq_u32(vreinterpretq_u32_f32(a.v), vreinterpretq_u32_f32(b.v)))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf pload<Packet1cf>(const std::complex<float>* from) |
| { EIGEN_DEBUG_ALIGNED_LOAD return Packet1cf(pload<Packet2f>((const float*)from)); } |
| template<> EIGEN_STRONG_INLINE Packet2cf pload<Packet2cf>(const std::complex<float>* from) |
| { EIGEN_DEBUG_ALIGNED_LOAD return Packet2cf(pload<Packet4f>(reinterpret_cast<const float*>(from))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf ploadu<Packet1cf>(const std::complex<float>* from) |
| { EIGEN_DEBUG_UNALIGNED_LOAD return Packet1cf(ploadu<Packet2f>((const float*)from)); } |
| template<> EIGEN_STRONG_INLINE Packet2cf ploadu<Packet2cf>(const std::complex<float>* from) |
| { EIGEN_DEBUG_UNALIGNED_LOAD return Packet2cf(ploadu<Packet4f>(reinterpret_cast<const float*>(from))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf ploaddup<Packet1cf>(const std::complex<float>* from) |
| { return pset1<Packet1cf>(*from); } |
| template<> EIGEN_STRONG_INLINE Packet2cf ploaddup<Packet2cf>(const std::complex<float>* from) |
| { return pset1<Packet2cf>(*from); } |
| |
| template<> EIGEN_STRONG_INLINE void pstore <std::complex<float> >(std::complex<float> *to, const Packet1cf& from) |
| { EIGEN_DEBUG_ALIGNED_STORE pstore((float*)to, from.v); } |
| template<> EIGEN_STRONG_INLINE void pstore <std::complex<float> >(std::complex<float> *to, const Packet2cf& from) |
| { EIGEN_DEBUG_ALIGNED_STORE pstore(reinterpret_cast<float*>(to), from.v); } |
| |
| template<> EIGEN_STRONG_INLINE void pstoreu<std::complex<float> >(std::complex<float> *to, const Packet1cf& from) |
| { EIGEN_DEBUG_UNALIGNED_STORE pstoreu((float*)to, from.v); } |
| template<> EIGEN_STRONG_INLINE void pstoreu<std::complex<float> >(std::complex<float> *to, const Packet2cf& from) |
| { EIGEN_DEBUG_UNALIGNED_STORE pstoreu(reinterpret_cast<float*>(to), from.v); } |
| |
| template<> EIGEN_DEVICE_FUNC inline Packet1cf pgather<std::complex<float>, Packet1cf>( |
| const std::complex<float>* from, Index stride) |
| { |
| const Packet2f tmp = vdup_n_f32(std::real(from[0*stride])); |
| return Packet1cf(vset_lane_f32(std::imag(from[0*stride]), tmp, 1)); |
| } |
| template<> EIGEN_DEVICE_FUNC inline Packet2cf pgather<std::complex<float>, Packet2cf>( |
| const std::complex<float>* from, Index stride) |
| { |
| Packet4f res = vdupq_n_f32(std::real(from[0*stride])); |
| res = vsetq_lane_f32(std::imag(from[0*stride]), res, 1); |
| res = vsetq_lane_f32(std::real(from[1*stride]), res, 2); |
| res = vsetq_lane_f32(std::imag(from[1*stride]), res, 3); |
| return Packet2cf(res); |
| } |
| |
| template<> EIGEN_DEVICE_FUNC inline void pscatter<std::complex<float>, Packet1cf>( |
| std::complex<float>* to, const Packet1cf& from, Index stride) |
| { to[stride*0] = std::complex<float>(vget_lane_f32(from.v, 0), vget_lane_f32(from.v, 1)); } |
| template<> EIGEN_DEVICE_FUNC inline void pscatter<std::complex<float>, Packet2cf>( |
| std::complex<float>* to, const Packet2cf& from, Index stride) |
| { |
| to[stride*0] = std::complex<float>(vgetq_lane_f32(from.v, 0), vgetq_lane_f32(from.v, 1)); |
| to[stride*1] = std::complex<float>(vgetq_lane_f32(from.v, 2), vgetq_lane_f32(from.v, 3)); |
| } |
| |
| template<> EIGEN_STRONG_INLINE void prefetch<std::complex<float> >(const std::complex<float> *addr) |
| { EIGEN_ARM_PREFETCH(reinterpret_cast<const float*>(addr)); } |
| |
| template<> EIGEN_STRONG_INLINE std::complex<float> pfirst<Packet1cf>(const Packet1cf& a) |
| { |
| EIGEN_ALIGN16 std::complex<float> x; |
| vst1_f32(reinterpret_cast<float*>(&x), a.v); |
| return x; |
| } |
| template<> EIGEN_STRONG_INLINE std::complex<float> pfirst<Packet2cf>(const Packet2cf& a) |
| { |
| EIGEN_ALIGN16 std::complex<float> x[2]; |
| vst1q_f32(reinterpret_cast<float*>(x), a.v); |
| return x[0]; |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf preverse(const Packet1cf& a) { return a; } |
| template<> EIGEN_STRONG_INLINE Packet2cf preverse(const Packet2cf& a) |
| { return Packet2cf(vcombine_f32(vget_high_f32(a.v), vget_low_f32(a.v))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf pcplxflip<Packet1cf>(const Packet1cf& a) |
| { return Packet1cf(vrev64_f32(a.v)); } |
| template<> EIGEN_STRONG_INLINE Packet2cf pcplxflip<Packet2cf>(const Packet2cf& a) |
| { return Packet2cf(vrev64q_f32(a.v)); } |
| |
| template<> EIGEN_STRONG_INLINE std::complex<float> predux<Packet1cf>(const Packet1cf& a) |
| { |
| std::complex<float> s; |
| vst1_f32((float *)&s, a.v); |
| return s; |
| } |
| template<> EIGEN_STRONG_INLINE std::complex<float> predux<Packet2cf>(const Packet2cf& a) |
| { |
| std::complex<float> s; |
| vst1_f32(reinterpret_cast<float*>(&s), vadd_f32(vget_low_f32(a.v), vget_high_f32(a.v))); |
| return s; |
| } |
| |
| template<> EIGEN_STRONG_INLINE std::complex<float> predux_mul<Packet1cf>(const Packet1cf& a) |
| { |
| std::complex<float> s; |
| vst1_f32((float *)&s, a.v); |
| return s; |
| } |
| template<> EIGEN_STRONG_INLINE std::complex<float> predux_mul<Packet2cf>(const Packet2cf& a) |
| { |
| float32x2_t a1, a2, v1, v2, prod; |
| std::complex<float> s; |
| |
| a1 = vget_low_f32(a.v); |
| a2 = vget_high_f32(a.v); |
| // Get the real values of a | a1_re | a1_re | a2_re | a2_re | |
| v1 = vdup_lane_f32(a1, 0); |
| // Get the real values of a | a1_im | a1_im | a2_im | a2_im | |
| v2 = vdup_lane_f32(a1, 1); |
| // Multiply the real a with b |
| v1 = vmul_f32(v1, a2); |
| // Multiply the imag a with b |
| v2 = vmul_f32(v2, a2); |
| // Conjugate v2 |
| v2 = vreinterpret_f32_u32(veor_u32(vreinterpret_u32_f32(v2), p2ui_CONJ_XOR())); |
| // Swap real/imag elements in v2. |
| v2 = vrev64_f32(v2); |
| // Add v1, v2 |
| prod = vadd_f32(v1, v2); |
| |
| vst1_f32(reinterpret_cast<float*>(&s), prod); |
| |
| return s; |
| } |
| |
| template<> struct conj_helper<Packet1cf,Packet1cf,false,true> |
| { |
| EIGEN_STRONG_INLINE Packet1cf pmadd(const Packet1cf& x, const Packet1cf& y, const Packet1cf& c) const |
| { return padd(pmul(x,y),c); } |
| |
| EIGEN_STRONG_INLINE Packet1cf pmul(const Packet1cf& a, const Packet1cf& b) const |
| { return internal::pmul(a, pconj(b)); } |
| }; |
| |
| template<> struct conj_helper<Packet1cf,Packet1cf,true,false> |
| { |
| EIGEN_STRONG_INLINE Packet1cf pmadd(const Packet1cf& x, const Packet1cf& y, const Packet1cf& c) const |
| { return padd(pmul(x,y),c); } |
| |
| EIGEN_STRONG_INLINE Packet1cf pmul(const Packet1cf& a, const Packet1cf& b) const |
| { return internal::pmul(pconj(a), b); } |
| }; |
| |
| template<> struct conj_helper<Packet1cf,Packet1cf,true,true> |
| { |
| EIGEN_STRONG_INLINE Packet1cf pmadd(const Packet1cf& x, const Packet1cf& y, const Packet1cf& c) const |
| { return padd(pmul(x,y),c); } |
| |
| EIGEN_STRONG_INLINE Packet1cf pmul(const Packet1cf& a, const Packet1cf& b) const |
| { return pconj(internal::pmul(a,b)); } |
| }; |
| |
| template<> struct conj_helper<Packet2cf,Packet2cf,false,true> |
| { |
| EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const |
| { return padd(pmul(x,y),c); } |
| |
| EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const |
| { return internal::pmul(a, pconj(b)); } |
| }; |
| |
| template<> struct conj_helper<Packet2cf,Packet2cf,true,false> |
| { |
| EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const |
| { return padd(pmul(x,y),c); } |
| |
| EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const |
| { return internal::pmul(pconj(a), b); } |
| }; |
| |
| template<> struct conj_helper<Packet2cf,Packet2cf,true,true> |
| { |
| EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const |
| { return padd(pmul(x,y),c); } |
| |
| EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const |
| { return pconj(internal::pmul(a,b)); } |
| }; |
| |
| EIGEN_MAKE_CONJ_HELPER_CPLX_REAL(Packet1cf,Packet2f) |
| EIGEN_MAKE_CONJ_HELPER_CPLX_REAL(Packet2cf,Packet4f) |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf pdiv<Packet1cf>(const Packet1cf& a, const Packet1cf& b) |
| { |
| // TODO optimize it for NEON |
| Packet1cf res = conj_helper<Packet1cf, Packet1cf, false, true>().pmul(a,b); |
| Packet2f s, rev_s; |
| |
| // this computes the norm |
| s = vmul_f32(b.v, b.v); |
| rev_s = vrev64_f32(s); |
| |
| return Packet1cf(pdiv<Packet2f>(res.v, vadd_f32(s, rev_s))); |
| } |
| template<> EIGEN_STRONG_INLINE Packet2cf pdiv<Packet2cf>(const Packet2cf& a, const Packet2cf& b) |
| { |
| // TODO optimize it for NEON |
| Packet2cf res = conj_helper<Packet2cf, Packet2cf, false, true>().pmul(a,b); |
| Packet4f s, rev_s; |
| |
| // this computes the norm |
| s = vmulq_f32(b.v, b.v); |
| rev_s = vrev64q_f32(s); |
| |
| return Packet2cf(pdiv<Packet4f>(res.v, vaddq_f32(s, rev_s))); |
| } |
| |
| EIGEN_DEVICE_FUNC inline void ptranspose(PacketBlock<Packet1cf, 1>& /*kernel*/) {} |
| EIGEN_DEVICE_FUNC inline void ptranspose(PacketBlock<Packet2cf, 2>& kernel) |
| { |
| Packet4f tmp = vcombine_f32(vget_high_f32(kernel.packet[0].v), vget_high_f32(kernel.packet[1].v)); |
| kernel.packet[0].v = vcombine_f32(vget_low_f32(kernel.packet[0].v), vget_low_f32(kernel.packet[1].v)); |
| kernel.packet[1].v = tmp; |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cf psqrt<Packet1cf>(const Packet1cf& a) { |
| return psqrt_complex<Packet1cf>(a); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet2cf psqrt<Packet2cf>(const Packet2cf& a) { |
| return psqrt_complex<Packet2cf>(a); |
| } |
| |
| //---------- double ---------- |
| #if EIGEN_ARCH_ARM64 && !EIGEN_APPLE_DOUBLE_NEON_BUG |
| |
| // See bug 1325, clang fails to call vld1q_u64. |
| #if EIGEN_COMP_CLANG || EIGEN_COMP_CASTXML |
| static uint64x2_t p2ul_CONJ_XOR = {0x0, 0x8000000000000000}; |
| #else |
| const uint64_t p2ul_conj_XOR_DATA[] = { 0x0, 0x8000000000000000 }; |
| static uint64x2_t p2ul_CONJ_XOR = vld1q_u64( p2ul_conj_XOR_DATA ); |
| #endif |
| |
| struct Packet1cd |
| { |
| EIGEN_STRONG_INLINE Packet1cd() {} |
| EIGEN_STRONG_INLINE explicit Packet1cd(const Packet2d& a) : v(a) {} |
| Packet2d v; |
| }; |
| |
| template<> struct packet_traits<std::complex<double> > : default_packet_traits |
| { |
| typedef Packet1cd type; |
| typedef Packet1cd half; |
| enum |
| { |
| Vectorizable = 1, |
| AlignedOnScalar = 0, |
| size = 1, |
| HasHalfPacket = 0, |
| |
| HasAdd = 1, |
| HasSub = 1, |
| HasMul = 1, |
| HasDiv = 1, |
| HasNegate = 1, |
| HasAbs = 0, |
| HasAbs2 = 0, |
| HasMin = 0, |
| HasMax = 0, |
| HasSetLinear = 0 |
| }; |
| }; |
| |
| template<> struct unpacket_traits<Packet1cd> |
| { |
| typedef std::complex<double> type; |
| typedef Packet1cd half; |
| typedef Packet2d as_real; |
| enum |
| { |
| size=1, |
| alignment=Aligned16, |
| vectorizable=true, |
| masked_load_available=false, |
| masked_store_available=false |
| }; |
| }; |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd pload<Packet1cd>(const std::complex<double>* from) |
| { EIGEN_DEBUG_ALIGNED_LOAD return Packet1cd(pload<Packet2d>(reinterpret_cast<const double*>(from))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd ploadu<Packet1cd>(const std::complex<double>* from) |
| { EIGEN_DEBUG_UNALIGNED_LOAD return Packet1cd(ploadu<Packet2d>(reinterpret_cast<const double*>(from))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd pset1<Packet1cd>(const std::complex<double>& from) |
| { |
| /* here we really have to use unaligned loads :( */ |
| return ploadu<Packet1cd>(&from); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd padd<Packet1cd>(const Packet1cd& a, const Packet1cd& b) |
| { return Packet1cd(padd<Packet2d>(a.v, b.v)); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd psub<Packet1cd>(const Packet1cd& a, const Packet1cd& b) |
| { return Packet1cd(psub<Packet2d>(a.v, b.v)); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd pnegate(const Packet1cd& a) |
| { return Packet1cd(pnegate<Packet2d>(a.v)); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd pconj(const Packet1cd& a) |
| { return Packet1cd(vreinterpretq_f64_u64(veorq_u64(vreinterpretq_u64_f64(a.v), p2ul_CONJ_XOR))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd pmul<Packet1cd>(const Packet1cd& a, const Packet1cd& b) |
| { |
| Packet2d v1, v2; |
| |
| // Get the real values of a |
| v1 = vdupq_lane_f64(vget_low_f64(a.v), 0); |
| // Get the imag values of a |
| v2 = vdupq_lane_f64(vget_high_f64(a.v), 0); |
| // Multiply the real a with b |
| v1 = vmulq_f64(v1, b.v); |
| // Multiply the imag a with b |
| v2 = vmulq_f64(v2, b.v); |
| // Conjugate v2 |
| v2 = vreinterpretq_f64_u64(veorq_u64(vreinterpretq_u64_f64(v2), p2ul_CONJ_XOR)); |
| // Swap real/imag elements in v2. |
| v2 = preverse<Packet2d>(v2); |
| // Add and return the result |
| return Packet1cd(vaddq_f64(v1, v2)); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd pcmp_eq(const Packet1cd& a, const Packet1cd& b) |
| { |
| // Compare real and imaginary parts of a and b to get the mask vector: |
| // [re(a)==re(b), im(a)==im(b)] |
| Packet2d eq = pcmp_eq<Packet2d>(a.v, b.v); |
| // Swap real/imag elements in the mask in to get: |
| // [im(a)==im(b), re(a)==re(b)] |
| Packet2d eq_swapped = vreinterpretq_f64_u32(vrev64q_u32(vreinterpretq_u32_f64(eq))); |
| // Return re(a)==re(b) & im(a)==im(b) by computing bitwise AND of eq and eq_swapped |
| return Packet1cd(pand<Packet2d>(eq, eq_swapped)); |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd pand<Packet1cd>(const Packet1cd& a, const Packet1cd& b) |
| { return Packet1cd(vreinterpretq_f64_u64(vandq_u64(vreinterpretq_u64_f64(a.v),vreinterpretq_u64_f64(b.v)))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd por<Packet1cd>(const Packet1cd& a, const Packet1cd& b) |
| { return Packet1cd(vreinterpretq_f64_u64(vorrq_u64(vreinterpretq_u64_f64(a.v),vreinterpretq_u64_f64(b.v)))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd pxor<Packet1cd>(const Packet1cd& a, const Packet1cd& b) |
| { return Packet1cd(vreinterpretq_f64_u64(veorq_u64(vreinterpretq_u64_f64(a.v),vreinterpretq_u64_f64(b.v)))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd pandnot<Packet1cd>(const Packet1cd& a, const Packet1cd& b) |
| { return Packet1cd(vreinterpretq_f64_u64(vbicq_u64(vreinterpretq_u64_f64(a.v),vreinterpretq_u64_f64(b.v)))); } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd ploaddup<Packet1cd>(const std::complex<double>* from) |
| { return pset1<Packet1cd>(*from); } |
| |
| template<> EIGEN_STRONG_INLINE void pstore <std::complex<double> >(std::complex<double> *to, const Packet1cd& from) |
| { EIGEN_DEBUG_ALIGNED_STORE pstore(reinterpret_cast<double*>(to), from.v); } |
| |
| template<> EIGEN_STRONG_INLINE void pstoreu<std::complex<double> >(std::complex<double> *to, const Packet1cd& from) |
| { EIGEN_DEBUG_UNALIGNED_STORE pstoreu(reinterpret_cast<double*>(to), from.v); } |
| |
| template<> EIGEN_STRONG_INLINE void prefetch<std::complex<double> >(const std::complex<double> *addr) |
| { EIGEN_ARM_PREFETCH(reinterpret_cast<const double*>(addr)); } |
| |
| template<> EIGEN_DEVICE_FUNC inline Packet1cd pgather<std::complex<double>, Packet1cd>( |
| const std::complex<double>* from, Index stride) |
| { |
| Packet2d res = pset1<Packet2d>(0.0); |
| res = vsetq_lane_f64(std::real(from[0*stride]), res, 0); |
| res = vsetq_lane_f64(std::imag(from[0*stride]), res, 1); |
| return Packet1cd(res); |
| } |
| |
| template<> EIGEN_DEVICE_FUNC inline void pscatter<std::complex<double>, Packet1cd>( |
| std::complex<double>* to, const Packet1cd& from, Index stride) |
| { to[stride*0] = std::complex<double>(vgetq_lane_f64(from.v, 0), vgetq_lane_f64(from.v, 1)); } |
| |
| template<> EIGEN_STRONG_INLINE std::complex<double> pfirst<Packet1cd>(const Packet1cd& a) |
| { |
| EIGEN_ALIGN16 std::complex<double> res; |
| pstore<std::complex<double> >(&res, a); |
| return res; |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd preverse(const Packet1cd& a) { return a; } |
| |
| template<> EIGEN_STRONG_INLINE std::complex<double> predux<Packet1cd>(const Packet1cd& a) { return pfirst(a); } |
| |
| template<> EIGEN_STRONG_INLINE std::complex<double> predux_mul<Packet1cd>(const Packet1cd& a) { return pfirst(a); } |
| |
| template<> struct conj_helper<Packet1cd, Packet1cd, false,true> |
| { |
| EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const |
| { return padd(pmul(x,y),c); } |
| |
| EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const |
| { return internal::pmul(a, pconj(b)); } |
| }; |
| |
| template<> struct conj_helper<Packet1cd, Packet1cd, true,false> |
| { |
| EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const |
| { return padd(pmul(x,y),c); } |
| |
| EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const |
| { return internal::pmul(pconj(a), b); } |
| }; |
| |
| template<> struct conj_helper<Packet1cd, Packet1cd, true,true> |
| { |
| EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const |
| { return padd(pmul(x,y),c); } |
| |
| EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const |
| { return pconj(internal::pmul(a,b)); } |
| }; |
| |
| EIGEN_MAKE_CONJ_HELPER_CPLX_REAL(Packet1cd,Packet2d) |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd pdiv<Packet1cd>(const Packet1cd& a, const Packet1cd& b) |
| { |
| // TODO optimize it for NEON |
| Packet1cd res = conj_helper<Packet1cd,Packet1cd,false,true>().pmul(a,b); |
| Packet2d s = pmul<Packet2d>(b.v, b.v); |
| Packet2d rev_s = preverse<Packet2d>(s); |
| |
| return Packet1cd(pdiv(res.v, padd<Packet2d>(s,rev_s))); |
| } |
| |
| EIGEN_STRONG_INLINE Packet1cd pcplxflip/*<Packet1cd>*/(const Packet1cd& x) |
| { return Packet1cd(preverse(Packet2d(x.v))); } |
| |
| EIGEN_STRONG_INLINE void ptranspose(PacketBlock<Packet1cd,2>& kernel) |
| { |
| Packet2d tmp = vcombine_f64(vget_high_f64(kernel.packet[0].v), vget_high_f64(kernel.packet[1].v)); |
| kernel.packet[0].v = vcombine_f64(vget_low_f64(kernel.packet[0].v), vget_low_f64(kernel.packet[1].v)); |
| kernel.packet[1].v = tmp; |
| } |
| |
| template<> EIGEN_STRONG_INLINE Packet1cd psqrt<Packet1cd>(const Packet1cd& a) { |
| return psqrt_complex<Packet1cd>(a); |
| } |
| |
| #endif // EIGEN_ARCH_ARM64 |
| |
| } // end namespace internal |
| |
| } // end namespace Eigen |
| |
| #endif // EIGEN_COMPLEX_NEON_H |
