diff options
Diffstat (limited to 'thirdparty/embree-aarch64/common/simd/vint8_avx.h')
| -rw-r--r-- | thirdparty/embree-aarch64/common/simd/vint8_avx.h | 464 |
1 files changed, 464 insertions, 0 deletions
diff --git a/thirdparty/embree-aarch64/common/simd/vint8_avx.h b/thirdparty/embree-aarch64/common/simd/vint8_avx.h new file mode 100644 index 0000000000..25a771284d --- /dev/null +++ b/thirdparty/embree-aarch64/common/simd/vint8_avx.h @@ -0,0 +1,464 @@ +// Copyright 2009-2020 Intel Corporation +// SPDX-License-Identifier: Apache-2.0 + +#pragma once + +namespace embree +{ + /* 8-wide AVX integer type */ + template<> + struct vint<8> + { + ALIGNED_STRUCT_(32); + + typedef vboolf8 Bool; + typedef vint8 Int; + typedef vfloat8 Float; + + enum { size = 8 }; // number of SIMD elements + union { // data + __m256i v; + struct { __m128i vl,vh; }; + int i[8]; + }; + + //////////////////////////////////////////////////////////////////////////////// + /// Constructors, Assignment & Cast Operators + //////////////////////////////////////////////////////////////////////////////// + + __forceinline vint() {} + __forceinline vint(const vint8& a) { v = a.v; } + __forceinline vint8& operator =(const vint8& a) { v = a.v; return *this; } + + __forceinline vint(__m256i a) : v(a) {} + __forceinline operator const __m256i&() const { return v; } + __forceinline operator __m256i&() { return v; } + + __forceinline explicit vint(const vint4& a) : v(_mm256_insertf128_si256(_mm256_castsi128_si256(a),a,1)) {} + __forceinline vint(const vint4& a, const vint4& b) : v(_mm256_insertf128_si256(_mm256_castsi128_si256(a),b,1)) {} + __forceinline vint(const __m128i& a, const __m128i& b) : vl(a), vh(b) {} + + __forceinline explicit vint(const int* a) : v(_mm256_castps_si256(_mm256_loadu_ps((const float*)a))) {} + __forceinline vint(int a) : v(_mm256_set1_epi32(a)) {} + __forceinline vint(int a, int b) : v(_mm256_set_epi32(b, a, b, a, b, a, b, a)) {} + __forceinline vint(int a, int b, int c, int d) : v(_mm256_set_epi32(d, c, b, a, d, c, b, a)) {} + __forceinline vint(int a, int b, int c, int d, int e, int f, int g, int vh) : v(_mm256_set_epi32(vh, g, f, e, d, c, b, a)) {} + + __forceinline explicit vint(__m256 a) : v(_mm256_cvtps_epi32(a)) {} + + //////////////////////////////////////////////////////////////////////////////// + /// Constants + //////////////////////////////////////////////////////////////////////////////// + + __forceinline vint(ZeroTy) : v(_mm256_setzero_si256()) {} + __forceinline vint(OneTy) : v(_mm256_set_epi32(1,1,1,1,1,1,1,1)) {} + __forceinline vint(PosInfTy) : v(_mm256_set_epi32(pos_inf,pos_inf,pos_inf,pos_inf,pos_inf,pos_inf,pos_inf,pos_inf)) {} + __forceinline vint(NegInfTy) : v(_mm256_set_epi32(neg_inf,neg_inf,neg_inf,neg_inf,neg_inf,neg_inf,neg_inf,neg_inf)) {} + __forceinline vint(StepTy) : v(_mm256_set_epi32(7, 6, 5, 4, 3, 2, 1, 0)) {} + __forceinline vint(ReverseStepTy) : v(_mm256_set_epi32(0, 1, 2, 3, 4, 5, 6, 7)) {} + __forceinline vint(UndefinedTy) : v(_mm256_undefined_si256()) {} + + //////////////////////////////////////////////////////////////////////////////// + /// Loads and Stores + //////////////////////////////////////////////////////////////////////////////// + + static __forceinline vint8 load (const void* a) { return _mm256_castps_si256(_mm256_load_ps((float*)a)); } + static __forceinline vint8 loadu(const void* a) { return _mm256_castps_si256(_mm256_loadu_ps((float*)a)); } + + static __forceinline vint8 load (const vboolf8& mask, const void* a) { return _mm256_castps_si256(_mm256_maskload_ps((float*)a,mask)); } + static __forceinline vint8 loadu(const vboolf8& mask, const void* a) { return _mm256_castps_si256(_mm256_maskload_ps((float*)a,mask)); } + + static __forceinline void store (void* ptr, const vint8& f) { _mm256_store_ps((float*)ptr,_mm256_castsi256_ps(f)); } + static __forceinline void storeu(void* ptr, const vint8& f) { _mm256_storeu_ps((float*)ptr,_mm256_castsi256_ps(f)); } + +#if !defined(__aarch64__) + static __forceinline void store (const vboolf8& mask, void* ptr, const vint8& f) { _mm256_maskstore_ps((float*)ptr,(__m256i)mask,_mm256_castsi256_ps(f)); } + static __forceinline void storeu(const vboolf8& mask, void* ptr, const vint8& f) { _mm256_maskstore_ps((float*)ptr,(__m256i)mask,_mm256_castsi256_ps(f)); } +#else + static __forceinline void store (const vboolf8& mask, void* ptr, const vint8& f) { _mm256_maskstore_ps((float*)ptr,(__m256i)mask.v,_mm256_castsi256_ps(f)); } + static __forceinline void storeu(const vboolf8& mask, void* ptr, const vint8& f) { _mm256_maskstore_ps((float*)ptr,(__m256i)mask.v,_mm256_castsi256_ps(f)); } +#endif + + static __forceinline void store_nt(void* ptr, const vint8& v) { + _mm256_stream_ps((float*)ptr,_mm256_castsi256_ps(v)); + } + + static __forceinline vint8 load(const uint8_t* ptr) { + vint4 il = vint4::load(ptr+0); + vint4 ih = vint4::load(ptr+4); + return vint8(il,ih); + } + + static __forceinline vint8 loadu(const uint8_t* ptr) { + vint4 il = vint4::loadu(ptr+0); + vint4 ih = vint4::loadu(ptr+4); + return vint8(il,ih); + } + + static __forceinline vint8 load(const unsigned short* ptr) { + vint4 il = vint4::load(ptr+0); + vint4 ih = vint4::load(ptr+4); + return vint8(il,ih); + } + + static __forceinline vint8 loadu(const unsigned short* ptr) { + vint4 il = vint4::loadu(ptr+0); + vint4 ih = vint4::loadu(ptr+4); + return vint8(il,ih); + } + + static __forceinline void store(uint8_t* ptr, const vint8& i) { + vint4 il(i.vl); + vint4 ih(i.vh); + vint4::store(ptr + 0,il); + vint4::store(ptr + 4,ih); + } + + static __forceinline void store(unsigned short* ptr, const vint8& v) { + for (size_t i=0;i<8;i++) + ptr[i] = (unsigned short)v[i]; + } + + template<int scale = 4> + static __forceinline vint8 gather(const int* ptr, const vint8& index) { + return vint8( + *(int*)(((int8_t*)ptr)+scale*index[0]), + *(int*)(((int8_t*)ptr)+scale*index[1]), + *(int*)(((int8_t*)ptr)+scale*index[2]), + *(int*)(((int8_t*)ptr)+scale*index[3]), + *(int*)(((int8_t*)ptr)+scale*index[4]), + *(int*)(((int8_t*)ptr)+scale*index[5]), + *(int*)(((int8_t*)ptr)+scale*index[6]), + *(int*)(((int8_t*)ptr)+scale*index[7])); + } + + template<int scale = 4> + static __forceinline vint8 gather(const vboolf8& mask, const int* ptr, const vint8& index) { + vint8 r = zero; + if (likely(mask[0])) r[0] = *(int*)(((int8_t*)ptr)+scale*index[0]); + if (likely(mask[1])) r[1] = *(int*)(((int8_t*)ptr)+scale*index[1]); + if (likely(mask[2])) r[2] = *(int*)(((int8_t*)ptr)+scale*index[2]); + if (likely(mask[3])) r[3] = *(int*)(((int8_t*)ptr)+scale*index[3]); + if (likely(mask[4])) r[4] = *(int*)(((int8_t*)ptr)+scale*index[4]); + if (likely(mask[5])) r[5] = *(int*)(((int8_t*)ptr)+scale*index[5]); + if (likely(mask[6])) r[6] = *(int*)(((int8_t*)ptr)+scale*index[6]); + if (likely(mask[7])) r[7] = *(int*)(((int8_t*)ptr)+scale*index[7]); + return r; + } + + template<int scale = 4> + static __forceinline void scatter(void* ptr, const vint8& ofs, const vint8& v) + { + *(int*)(((int8_t*)ptr)+scale*ofs[0]) = v[0]; + *(int*)(((int8_t*)ptr)+scale*ofs[1]) = v[1]; + *(int*)(((int8_t*)ptr)+scale*ofs[2]) = v[2]; + *(int*)(((int8_t*)ptr)+scale*ofs[3]) = v[3]; + *(int*)(((int8_t*)ptr)+scale*ofs[4]) = v[4]; + *(int*)(((int8_t*)ptr)+scale*ofs[5]) = v[5]; + *(int*)(((int8_t*)ptr)+scale*ofs[6]) = v[6]; + *(int*)(((int8_t*)ptr)+scale*ofs[7]) = v[7]; + } + + template<int scale = 4> + static __forceinline void scatter(const vboolf8& mask, void* ptr, const vint8& ofs, const vint8& v) + { + if (likely(mask[0])) *(int*)(((int8_t*)ptr)+scale*ofs[0]) = v[0]; + if (likely(mask[1])) *(int*)(((int8_t*)ptr)+scale*ofs[1]) = v[1]; + if (likely(mask[2])) *(int*)(((int8_t*)ptr)+scale*ofs[2]) = v[2]; + if (likely(mask[3])) *(int*)(((int8_t*)ptr)+scale*ofs[3]) = v[3]; + if (likely(mask[4])) *(int*)(((int8_t*)ptr)+scale*ofs[4]) = v[4]; + if (likely(mask[5])) *(int*)(((int8_t*)ptr)+scale*ofs[5]) = v[5]; + if (likely(mask[6])) *(int*)(((int8_t*)ptr)+scale*ofs[6]) = v[6]; + if (likely(mask[7])) *(int*)(((int8_t*)ptr)+scale*ofs[7]) = v[7]; + } + + + static __forceinline vint8 broadcast64(const long long& a) { return _mm256_set1_epi64x(a); } + + //////////////////////////////////////////////////////////////////////////////// + /// Array Access + //////////////////////////////////////////////////////////////////////////////// + + __forceinline const int& operator [](size_t index) const { assert(index < 8); return i[index]; } + __forceinline int& operator [](size_t index) { assert(index < 8); return i[index]; } + }; + + //////////////////////////////////////////////////////////////////////////////// + /// Unary Operators + //////////////////////////////////////////////////////////////////////////////// + + __forceinline vboolf8 asBool(const vint8& a) { return _mm256_castsi256_ps(a); } + + __forceinline vint8 operator +(const vint8& a) { return a; } + __forceinline vint8 operator -(const vint8& a) { return vint8(_mm_sub_epi32(_mm_setzero_si128(), a.vl), _mm_sub_epi32(_mm_setzero_si128(), a.vh)); } + __forceinline vint8 abs (const vint8& a) { return vint8(_mm_abs_epi32(a.vl), _mm_abs_epi32(a.vh)); } + + //////////////////////////////////////////////////////////////////////////////// + /// Binary Operators + //////////////////////////////////////////////////////////////////////////////// + + __forceinline vint8 operator +(const vint8& a, const vint8& b) { return vint8(_mm_add_epi32(a.vl, b.vl), _mm_add_epi32(a.vh, b.vh)); } + __forceinline vint8 operator +(const vint8& a, int b) { return a + vint8(b); } + __forceinline vint8 operator +(int a, const vint8& b) { return vint8(a) + b; } + + __forceinline vint8 operator -(const vint8& a, const vint8& b) { return vint8(_mm_sub_epi32(a.vl, b.vl), _mm_sub_epi32(a.vh, b.vh)); } + __forceinline vint8 operator -(const vint8& a, int b) { return a - vint8(b); } + __forceinline vint8 operator -(int a, const vint8& b) { return vint8(a) - b; } + + __forceinline vint8 operator *(const vint8& a, const vint8& b) { return vint8(_mm_mullo_epi32(a.vl, b.vl), _mm_mullo_epi32(a.vh, b.vh)); } + __forceinline vint8 operator *(const vint8& a, int b) { return a * vint8(b); } + __forceinline vint8 operator *(int a, const vint8& b) { return vint8(a) * b; } + + __forceinline vint8 operator &(const vint8& a, const vint8& b) { return _mm256_castps_si256(_mm256_and_ps(_mm256_castsi256_ps(a), _mm256_castsi256_ps(b))); } + __forceinline vint8 operator &(const vint8& a, int b) { return a & vint8(b); } + __forceinline vint8 operator &(int a, const vint8& b) { return vint8(a) & b; } + + __forceinline vint8 operator |(const vint8& a, const vint8& b) { return _mm256_castps_si256(_mm256_or_ps (_mm256_castsi256_ps(a), _mm256_castsi256_ps(b))); } + __forceinline vint8 operator |(const vint8& a, int b) { return a | vint8(b); } + __forceinline vint8 operator |(int a, const vint8& b) { return vint8(a) | b; } + + __forceinline vint8 operator ^(const vint8& a, const vint8& b) { return _mm256_castps_si256(_mm256_xor_ps(_mm256_castsi256_ps(a), _mm256_castsi256_ps(b))); } + __forceinline vint8 operator ^(const vint8& a, int b) { return a ^ vint8(b); } + __forceinline vint8 operator ^(int a, const vint8& b) { return vint8(a) ^ b; } + + __forceinline vint8 operator <<(const vint8& a, int n) { return vint8(_mm_slli_epi32(a.vl, n), _mm_slli_epi32(a.vh, n)); } + __forceinline vint8 operator >>(const vint8& a, int n) { return vint8(_mm_srai_epi32(a.vl, n), _mm_srai_epi32(a.vh, n)); } + + __forceinline vint8 sll (const vint8& a, int b) { return vint8(_mm_slli_epi32(a.vl, b), _mm_slli_epi32(a.vh, b)); } + __forceinline vint8 sra (const vint8& a, int b) { return vint8(_mm_srai_epi32(a.vl, b), _mm_srai_epi32(a.vh, b)); } + __forceinline vint8 srl (const vint8& a, int b) { return vint8(_mm_srli_epi32(a.vl, b), _mm_srli_epi32(a.vh, b)); } + + __forceinline vint8 min(const vint8& a, const vint8& b) { return vint8(_mm_min_epi32(a.vl, b.vl), _mm_min_epi32(a.vh, b.vh)); } + __forceinline vint8 min(const vint8& a, int b) { return min(a,vint8(b)); } + __forceinline vint8 min(int a, const vint8& b) { return min(vint8(a),b); } + + __forceinline vint8 max(const vint8& a, const vint8& b) { return vint8(_mm_max_epi32(a.vl, b.vl), _mm_max_epi32(a.vh, b.vh)); } + __forceinline vint8 max(const vint8& a, int b) { return max(a,vint8(b)); } + __forceinline vint8 max(int a, const vint8& b) { return max(vint8(a),b); } + + __forceinline vint8 umin(const vint8& a, const vint8& b) { return vint8(_mm_min_epu32(a.vl, b.vl), _mm_min_epu32(a.vh, b.vh)); } + __forceinline vint8 umin(const vint8& a, int b) { return umin(a,vint8(b)); } + __forceinline vint8 umin(int a, const vint8& b) { return umin(vint8(a),b); } + + __forceinline vint8 umax(const vint8& a, const vint8& b) { return vint8(_mm_max_epu32(a.vl, b.vl), _mm_max_epu32(a.vh, b.vh)); } + __forceinline vint8 umax(const vint8& a, int b) { return umax(a,vint8(b)); } + __forceinline vint8 umax(int a, const vint8& b) { return umax(vint8(a),b); } + + //////////////////////////////////////////////////////////////////////////////// + /// Assignment Operators + //////////////////////////////////////////////////////////////////////////////// + + __forceinline vint8& operator +=(vint8& a, const vint8& b) { return a = a + b; } + __forceinline vint8& operator +=(vint8& a, int b) { return a = a + b; } + + __forceinline vint8& operator -=(vint8& a, const vint8& b) { return a = a - b; } + __forceinline vint8& operator -=(vint8& a, int b) { return a = a - b; } + + __forceinline vint8& operator *=(vint8& a, const vint8& b) { return a = a * b; } + __forceinline vint8& operator *=(vint8& a, int b) { return a = a * b; } + + __forceinline vint8& operator &=(vint8& a, const vint8& b) { return a = a & b; } + __forceinline vint8& operator &=(vint8& a, int b) { return a = a & b; } + + __forceinline vint8& operator |=(vint8& a, const vint8& b) { return a = a | b; } + __forceinline vint8& operator |=(vint8& a, int b) { return a = a | b; } + + __forceinline vint8& operator <<=(vint8& a, int b) { return a = a << b; } + __forceinline vint8& operator >>=(vint8& a, int b) { return a = a >> b; } + + //////////////////////////////////////////////////////////////////////////////// + /// Comparison Operators + Select + //////////////////////////////////////////////////////////////////////////////// + + __forceinline vboolf8 operator ==(const vint8& a, const vint8& b) { return vboolf8(_mm_castsi128_ps(_mm_cmpeq_epi32 (a.vl, b.vl)), + _mm_castsi128_ps(_mm_cmpeq_epi32 (a.vh, b.vh))); } + __forceinline vboolf8 operator ==(const vint8& a, int b) { return a == vint8(b); } + __forceinline vboolf8 operator ==(int a, const vint8& b) { return vint8(a) == b; } + + __forceinline vboolf8 operator !=(const vint8& a, const vint8& b) { return !(a == b); } + __forceinline vboolf8 operator !=(const vint8& a, int b) { return a != vint8(b); } + __forceinline vboolf8 operator !=(int a, const vint8& b) { return vint8(a) != b; } + + __forceinline vboolf8 operator < (const vint8& a, const vint8& b) { return vboolf8(_mm_castsi128_ps(_mm_cmplt_epi32 (a.vl, b.vl)), + _mm_castsi128_ps(_mm_cmplt_epi32 (a.vh, b.vh))); } + __forceinline vboolf8 operator < (const vint8& a, int b) { return a < vint8(b); } + __forceinline vboolf8 operator < (int a, const vint8& b) { return vint8(a) < b; } + + __forceinline vboolf8 operator >=(const vint8& a, const vint8& b) { return !(a < b); } + __forceinline vboolf8 operator >=(const vint8& a, int b) { return a >= vint8(b); } + __forceinline vboolf8 operator >=(int a, const vint8& b) { return vint8(a) >= b; } + + __forceinline vboolf8 operator > (const vint8& a, const vint8& b) { return vboolf8(_mm_castsi128_ps(_mm_cmpgt_epi32 (a.vl, b.vl)), + _mm_castsi128_ps(_mm_cmpgt_epi32 (a.vh, b.vh))); } + __forceinline vboolf8 operator > (const vint8& a, int b) { return a > vint8(b); } + __forceinline vboolf8 operator > (int a, const vint8& b) { return vint8(a) > b; } + + __forceinline vboolf8 operator <=(const vint8& a, const vint8& b) { return !(a > b); } + __forceinline vboolf8 operator <=(const vint8& a, int b) { return a <= vint8(b); } + __forceinline vboolf8 operator <=(int a, const vint8& b) { return vint8(a) <= b; } + + __forceinline vboolf8 eq(const vint8& a, const vint8& b) { return a == b; } + __forceinline vboolf8 ne(const vint8& a, const vint8& b) { return a != b; } + __forceinline vboolf8 lt(const vint8& a, const vint8& b) { return a < b; } + __forceinline vboolf8 ge(const vint8& a, const vint8& b) { return a >= b; } + __forceinline vboolf8 gt(const vint8& a, const vint8& b) { return a > b; } + __forceinline vboolf8 le(const vint8& a, const vint8& b) { return a <= b; } + + __forceinline vboolf8 eq(const vboolf8& mask, const vint8& a, const vint8& b) { return mask & (a == b); } + __forceinline vboolf8 ne(const vboolf8& mask, const vint8& a, const vint8& b) { return mask & (a != b); } + __forceinline vboolf8 lt(const vboolf8& mask, const vint8& a, const vint8& b) { return mask & (a < b); } + __forceinline vboolf8 ge(const vboolf8& mask, const vint8& a, const vint8& b) { return mask & (a >= b); } + __forceinline vboolf8 gt(const vboolf8& mask, const vint8& a, const vint8& b) { return mask & (a > b); } + __forceinline vboolf8 le(const vboolf8& mask, const vint8& a, const vint8& b) { return mask & (a <= b); } + + __forceinline vint8 select(const vboolf8& m, const vint8& t, const vint8& f) { + return _mm256_castps_si256(_mm256_blendv_ps(_mm256_castsi256_ps(f), _mm256_castsi256_ps(t), m)); + } + + __forceinline vint8 notand(const vboolf8& m, const vint8& f) { + return _mm256_castps_si256(_mm256_andnot_ps(m, _mm256_castsi256_ps(f))); + } + + + //////////////////////////////////////////////////////////////////////////////// + /// Movement/Shifting/Shuffling Functions + //////////////////////////////////////////////////////////////////////////////// + + __forceinline vint8 unpacklo(const vint8& a, const vint8& b) { return _mm256_castps_si256(_mm256_unpacklo_ps(_mm256_castsi256_ps(a), _mm256_castsi256_ps(b))); } + __forceinline vint8 unpackhi(const vint8& a, const vint8& b) { return _mm256_castps_si256(_mm256_unpackhi_ps(_mm256_castsi256_ps(a), _mm256_castsi256_ps(b))); } + + template<int i> + __forceinline vint8 shuffle(const vint8& v) { + return _mm256_castps_si256(_mm256_permute_ps(_mm256_castsi256_ps(v), _MM_SHUFFLE(i, i, i, i))); + } + + template<int i0, int i1> + __forceinline vint8 shuffle4(const vint8& v) { + return _mm256_permute2f128_si256(v, v, (i1 << 4) | (i0 << 0)); + } + + template<int i0, int i1> + __forceinline vint8 shuffle4(const vint8& a, const vint8& b) { + return _mm256_permute2f128_si256(a, b, (i1 << 4) | (i0 << 0)); + } + + template<int i0, int i1, int i2, int i3> + __forceinline vint8 shuffle(const vint8& v) { + return _mm256_castps_si256(_mm256_permute_ps(_mm256_castsi256_ps(v), _MM_SHUFFLE(i3, i2, i1, i0))); + } + + template<int i0, int i1, int i2, int i3> + __forceinline vint8 shuffle(const vint8& a, const vint8& b) { + return _mm256_castps_si256(_mm256_shuffle_ps(_mm256_castsi256_ps(a), _mm256_castsi256_ps(b), _MM_SHUFFLE(i3, i2, i1, i0))); + } + + template<> __forceinline vint8 shuffle<0, 0, 2, 2>(const vint8& v) { return _mm256_castps_si256(_mm256_moveldup_ps(_mm256_castsi256_ps(v))); } + template<> __forceinline vint8 shuffle<1, 1, 3, 3>(const vint8& v) { return _mm256_castps_si256(_mm256_movehdup_ps(_mm256_castsi256_ps(v))); } + template<> __forceinline vint8 shuffle<0, 1, 0, 1>(const vint8& v) { return _mm256_castps_si256(_mm256_castpd_ps(_mm256_movedup_pd(_mm256_castps_pd(_mm256_castsi256_ps(v))))); } + + __forceinline vint8 broadcast(const int* ptr) { return _mm256_castps_si256(_mm256_broadcast_ss((const float*)ptr)); } + template<int i> __forceinline vint8 insert4(const vint8& a, const vint4& b) { return _mm256_insertf128_si256(a, b, i); } + template<int i> __forceinline vint4 extract4(const vint8& a) { return _mm256_extractf128_si256(a, i); } + template<> __forceinline vint4 extract4<0>(const vint8& a) { return _mm256_castsi256_si128(a); } + + __forceinline int toScalar(const vint8& v) { return _mm_cvtsi128_si32(_mm256_castsi256_si128(v)); } + + + //////////////////////////////////////////////////////////////////////////////// + /// Reductions + //////////////////////////////////////////////////////////////////////////////// + + __forceinline vint8 vreduce_min2(const vint8& v) { return min(v,shuffle<1,0,3,2>(v)); } + __forceinline vint8 vreduce_min4(const vint8& v) { vint8 v1 = vreduce_min2(v); return min(v1,shuffle<2,3,0,1>(v1)); } + __forceinline vint8 vreduce_min (const vint8& v) { vint8 v1 = vreduce_min4(v); return min(v1,shuffle4<1,0>(v1)); } + + __forceinline vint8 vreduce_max2(const vint8& v) { return max(v,shuffle<1,0,3,2>(v)); } + __forceinline vint8 vreduce_max4(const vint8& v) { vint8 v1 = vreduce_max2(v); return max(v1,shuffle<2,3,0,1>(v1)); } + __forceinline vint8 vreduce_max (const vint8& v) { vint8 v1 = vreduce_max4(v); return max(v1,shuffle4<1,0>(v1)); } + + __forceinline vint8 vreduce_add2(const vint8& v) { return v + shuffle<1,0,3,2>(v); } + __forceinline vint8 vreduce_add4(const vint8& v) { vint8 v1 = vreduce_add2(v); return v1 + shuffle<2,3,0,1>(v1); } + __forceinline vint8 vreduce_add (const vint8& v) { vint8 v1 = vreduce_add4(v); return v1 + shuffle4<1,0>(v1); } + + __forceinline int reduce_min(const vint8& v) { return toScalar(vreduce_min(v)); } + __forceinline int reduce_max(const vint8& v) { return toScalar(vreduce_max(v)); } + __forceinline int reduce_add(const vint8& v) { return toScalar(vreduce_add(v)); } + + __forceinline size_t select_min(const vint8& v) { return bsf(movemask(v == vreduce_min(v))); } + __forceinline size_t select_max(const vint8& v) { return bsf(movemask(v == vreduce_max(v))); } + + __forceinline size_t select_min(const vboolf8& valid, const vint8& v) { const vint8 a = select(valid,v,vint8(pos_inf)); return bsf(movemask(valid & (a == vreduce_min(a)))); } + __forceinline size_t select_max(const vboolf8& valid, const vint8& v) { const vint8 a = select(valid,v,vint8(neg_inf)); return bsf(movemask(valid & (a == vreduce_max(a)))); } + + //////////////////////////////////////////////////////////////////////////////// + /// Sorting networks + //////////////////////////////////////////////////////////////////////////////// + + __forceinline vint8 usort_ascending(const vint8& v) + { + const vint8 a0 = v; + const vint8 b0 = shuffle<1,0,3,2>(a0); + const vint8 c0 = umin(a0,b0); + const vint8 d0 = umax(a0,b0); + const vint8 a1 = select(0x99 /* 0b10011001 */,c0,d0); + const vint8 b1 = shuffle<2,3,0,1>(a1); + const vint8 c1 = umin(a1,b1); + const vint8 d1 = umax(a1,b1); + const vint8 a2 = select(0xc3 /* 0b11000011 */,c1,d1); + const vint8 b2 = shuffle<1,0,3,2>(a2); + const vint8 c2 = umin(a2,b2); + const vint8 d2 = umax(a2,b2); + const vint8 a3 = select(0xa5 /* 0b10100101 */,c2,d2); + const vint8 b3 = shuffle4<1,0>(a3); + const vint8 c3 = umin(a3,b3); + const vint8 d3 = umax(a3,b3); + const vint8 a4 = select(0xf /* 0b00001111 */,c3,d3); + const vint8 b4 = shuffle<2,3,0,1>(a4); + const vint8 c4 = umin(a4,b4); + const vint8 d4 = umax(a4,b4); + const vint8 a5 = select(0x33 /* 0b00110011 */,c4,d4); + const vint8 b5 = shuffle<1,0,3,2>(a5); + const vint8 c5 = umin(a5,b5); + const vint8 d5 = umax(a5,b5); + const vint8 a6 = select(0x55 /* 0b01010101 */,c5,d5); + return a6; + } + + __forceinline vint8 usort_descending(const vint8& v) + { + const vint8 a0 = v; + const vint8 b0 = shuffle<1,0,3,2>(a0); + const vint8 c0 = umax(a0,b0); + const vint8 d0 = umin(a0,b0); + const vint8 a1 = select(0x99 /* 0b10011001 */,c0,d0); + const vint8 b1 = shuffle<2,3,0,1>(a1); + const vint8 c1 = umax(a1,b1); + const vint8 d1 = umin(a1,b1); + const vint8 a2 = select(0xc3 /* 0b11000011 */,c1,d1); + const vint8 b2 = shuffle<1,0,3,2>(a2); + const vint8 c2 = umax(a2,b2); + const vint8 d2 = umin(a2,b2); + const vint8 a3 = select(0xa5 /* 0b10100101 */,c2,d2); + const vint8 b3 = shuffle4<1,0>(a3); + const vint8 c3 = umax(a3,b3); + const vint8 d3 = umin(a3,b3); + const vint8 a4 = select(0xf /* 0b00001111 */,c3,d3); + const vint8 b4 = shuffle<2,3,0,1>(a4); + const vint8 c4 = umax(a4,b4); + const vint8 d4 = umin(a4,b4); + const vint8 a5 = select(0x33 /* 0b00110011 */,c4,d4); + const vint8 b5 = shuffle<1,0,3,2>(a5); + const vint8 c5 = umax(a5,b5); + const vint8 d5 = umin(a5,b5); + const vint8 a6 = select(0x55 /* 0b01010101 */,c5,d5); + return a6; + } + + //////////////////////////////////////////////////////////////////////////////// + /// Output Operators + //////////////////////////////////////////////////////////////////////////////// + + __forceinline embree_ostream operator <<(embree_ostream cout, const vint8& a) { + return cout << "<" << a[0] << ", " << a[1] << ", " << a[2] << ", " << a[3] << ", " << a[4] << ", " << a[5] << ", " << a[6] << ", " << a[7] << ">"; + } +} |