1/**************************************************************************** 2 * Copyright (C) 2017 Intel Corporation. All Rights Reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 ****************************************************************************/ 23#if !defined(__SIMD_LIB_AVX512_HPP__) 24#error Do not include this file directly, use "simdlib.hpp" instead. 25#endif 26 27//============================================================================ 28// SIMD256 AVX (512) implementation 29// 30// Since this implementation inherits from the AVX (2) implementation, 31// the only operations below ones that replace AVX (2) operations. 32// These use native AVX512 instructions with masking to enable a larger 33// register set. 34//============================================================================ 35 36private: 37static SIMDINLINE __m512 __conv(Float r) 38{ 39 return _mm512_castps256_ps512(r.v); 40} 41static SIMDINLINE __m512d __conv(Double r) 42{ 43 return _mm512_castpd256_pd512(r.v); 44} 45static SIMDINLINE __m512i __conv(Integer r) 46{ 47 return _mm512_castsi256_si512(r.v); 48} 49static SIMDINLINE Float __conv(__m512 r) 50{ 51 return _mm512_castps512_ps256(r); 52} 53static SIMDINLINE Double __conv(__m512d r) 54{ 55 return _mm512_castpd512_pd256(r); 56} 57static SIMDINLINE Integer __conv(__m512i r) 58{ 59 return _mm512_castsi512_si256(r); 60} 61 62public: 63#define SIMD_WRAPPER_1_(op, intrin, mask) \ 64 static SIMDINLINE Float SIMDCALL op(Float a) \ 65 { \ 66 return __conv(_mm512_maskz_##intrin((mask), __conv(a))); \ 67 } 68#define SIMD_WRAPPER_1(op) SIMD_WRAPPER_1_(op, op, __mmask16(0xff)) 69 70#define SIMD_WRAPPER_1I_(op, intrin, mask) \ 71 template <int ImmT> \ 72 static SIMDINLINE Float SIMDCALL op(Float a) \ 73 { \ 74 return __conv(_mm512_maskz_##intrin((mask), __conv(a), ImmT)); \ 75 } 76#define SIMD_WRAPPER_1I(op) SIMD_WRAPPER_1I_(op, op, __mmask16(0xff)) 77 78#define SIMD_WRAPPER_2_(op, intrin, mask) \ 79 static SIMDINLINE Float SIMDCALL op(Float a, Float b) \ 80 { \ 81 return __conv(_mm512_maskz_##intrin((mask), __conv(a), __conv(b))); \ 82 } 83#define SIMD_WRAPPER_2(op) SIMD_WRAPPER_2_(op, op, __mmask16(0xff)) 84 85#define SIMD_WRAPPER_2I(op) \ 86 template <int ImmT> \ 87 static SIMDINLINE Float SIMDCALL op(Float a, Float b) \ 88 { \ 89 return __conv(_mm512_maskz_##op(0xff, __conv(a), __conv(b), ImmT)); \ 90 } 91 92#define SIMD_WRAPPER_3_(op, intrin, mask) \ 93 static SIMDINLINE Float SIMDCALL op(Float a, Float b, Float c) \ 94 { \ 95 return __conv(_mm512_maskz_##intrin((mask), __conv(a), __conv(b), __conv(c))); \ 96 } 97#define SIMD_WRAPPER_3(op) SIMD_WRAPPER_3_(op, op, __mmask16(0xff)) 98 99#define SIMD_DWRAPPER_2I(op) \ 100 template <int ImmT> \ 101 static SIMDINLINE Double SIMDCALL op(Double a, Double b) \ 102 { \ 103 return __conv(_mm512_maskz_##op(0xf, __conv(a), __conv(b), ImmT)); \ 104 } 105 106#define SIMD_IWRAPPER_1_(op, intrin, mask) \ 107 static SIMDINLINE Integer SIMDCALL op(Integer a) \ 108 { \ 109 return __conv(_mm512_maskz_##intrin((mask), __conv(a))); \ 110 } 111#define SIMD_IWRAPPER_1_32(op) SIMD_IWRAPPER_1_(op, op, __mmask16(0xff)) 112 113#define SIMD_IWRAPPER_1I_(op, intrin, mask) \ 114 template <int ImmT> \ 115 static SIMDINLINE Integer SIMDCALL op(Integer a) \ 116 { \ 117 return __conv(_mm512_maskz_##intrin((mask), __conv(a), ImmT)); \ 118 } 119#define SIMD_IWRAPPER_1I_32(op) SIMD_IWRAPPER_1I_(op, op, __mmask16(0xff)) 120 121#define SIMD_IWRAPPER_2_(op, intrin, mask) \ 122 static SIMDINLINE Integer SIMDCALL op(Integer a, Integer b) \ 123 { \ 124 return __conv(_mm512_maskz_##intrin((mask), __conv(a), __conv(b))); \ 125 } 126#define SIMD_IWRAPPER_2_32(op) SIMD_IWRAPPER_2_(op, op, __mmask16(0xff)) 127 128#define SIMD_IWRAPPER_2I(op) \ 129 template <int ImmT> \ 130 static SIMDINLINE Integer SIMDCALL op(Integer a, Integer b) \ 131 { \ 132 return __conv(_mm512_maskz_##op(0xff, __conv(a), __conv(b), ImmT)); \ 133 } 134 135//----------------------------------------------------------------------- 136// Single precision floating point arithmetic operations 137//----------------------------------------------------------------------- 138SIMD_WRAPPER_2(add_ps); // return a + b 139SIMD_WRAPPER_2(div_ps); // return a / b 140SIMD_WRAPPER_3(fmadd_ps); // return (a * b) + c 141SIMD_WRAPPER_3(fmsub_ps); // return (a * b) - c 142SIMD_WRAPPER_2(max_ps); // return (a > b) ? a : b 143SIMD_WRAPPER_2(min_ps); // return (a < b) ? a : b 144SIMD_WRAPPER_2(mul_ps); // return a * b 145SIMD_WRAPPER_1_(rcp_ps, rcp14_ps, __mmask16(0xff)); // return 1.0f / a 146SIMD_WRAPPER_1_(rsqrt_ps, rsqrt14_ps, __mmask16(0xff)); // return 1.0f / sqrt(a) 147SIMD_WRAPPER_2(sub_ps); // return a - b 148 149//----------------------------------------------------------------------- 150// Integer (various width) arithmetic operations 151//----------------------------------------------------------------------- 152SIMD_IWRAPPER_1_32(abs_epi32); // return absolute_value(a) (int32) 153SIMD_IWRAPPER_2_32(add_epi32); // return a + b (int32) 154SIMD_IWRAPPER_2_32(max_epi32); // return (a > b) ? a : b (int32) 155SIMD_IWRAPPER_2_32(max_epu32); // return (a > b) ? a : b (uint32) 156SIMD_IWRAPPER_2_32(min_epi32); // return (a < b) ? a : b (int32) 157SIMD_IWRAPPER_2_32(min_epu32); // return (a < b) ? a : b (uint32) 158SIMD_IWRAPPER_2_32(mul_epi32); // return a * b (int32) 159 160// SIMD_IWRAPPER_2_8(add_epi8); // return a + b (int8) 161// SIMD_IWRAPPER_2_8(adds_epu8); // return ((a + b) > 0xff) ? 0xff : (a + b) (uint8) 162 163// return (a * b) & 0xFFFFFFFF 164// 165// Multiply the packed 32-bit integers in a and b, producing intermediate 64-bit integers, 166// and store the low 32 bits of the intermediate integers in dst. 167SIMD_IWRAPPER_2_32(mullo_epi32); 168SIMD_IWRAPPER_2_32(sub_epi32); // return a - b (int32) 169 170// SIMD_IWRAPPER_2_64(sub_epi64); // return a - b (int64) 171// SIMD_IWRAPPER_2_8(subs_epu8); // return (b > a) ? 0 : (a - b) (uint8) 172 173//----------------------------------------------------------------------- 174// Logical operations 175//----------------------------------------------------------------------- 176SIMD_IWRAPPER_2_(and_si, and_epi32, __mmask16(0xff)); // return a & b (int) 177SIMD_IWRAPPER_2_(andnot_si, andnot_epi32, __mmask16(0xff)); // return (~a) & b (int) 178SIMD_IWRAPPER_2_(or_si, or_epi32, __mmask16(0xff)); // return a | b (int) 179SIMD_IWRAPPER_2_(xor_si, xor_epi32, __mmask16(0xff)); // return a ^ b (int) 180 181//----------------------------------------------------------------------- 182// Shift operations 183//----------------------------------------------------------------------- 184SIMD_IWRAPPER_1I_32(slli_epi32); // return a << ImmT 185SIMD_IWRAPPER_2_32(sllv_epi32); // return a << b (uint32) 186SIMD_IWRAPPER_1I_32(srai_epi32); // return a >> ImmT (int32) 187SIMD_IWRAPPER_1I_32(srli_epi32); // return a >> ImmT (uint32) 188SIMD_IWRAPPER_2_32(srlv_epi32); // return a >> b (uint32) 189 190// use AVX2 version 191// SIMD_IWRAPPER_1I_(srli_si, srli_si256); // return a >> (ImmT*8) (uint) 192 193//----------------------------------------------------------------------- 194// Conversion operations (Use AVX2 versions) 195//----------------------------------------------------------------------- 196// SIMD_IWRAPPER_1L(cvtepu8_epi16, 0xffff); // return (int16)a (uint8 --> int16) 197// SIMD_IWRAPPER_1L(cvtepu8_epi32, 0xff); // return (int32)a (uint8 --> int32) 198// SIMD_IWRAPPER_1L(cvtepu16_epi32, 0xff); // return (int32)a (uint16 --> int32) 199// SIMD_IWRAPPER_1L(cvtepu16_epi64, 0xf); // return (int64)a (uint16 --> int64) 200// SIMD_IWRAPPER_1L(cvtepu32_epi64, 0xf); // return (int64)a (uint32 --> int64) 201 202//----------------------------------------------------------------------- 203// Comparison operations (Use AVX2 versions 204//----------------------------------------------------------------------- 205// SIMD_IWRAPPER_2_CMP(cmpeq_epi8); // return a == b (int8) 206// SIMD_IWRAPPER_2_CMP(cmpeq_epi16); // return a == b (int16) 207// SIMD_IWRAPPER_2_CMP(cmpeq_epi32); // return a == b (int32) 208// SIMD_IWRAPPER_2_CMP(cmpeq_epi64); // return a == b (int64) 209// SIMD_IWRAPPER_2_CMP(cmpgt_epi8,); // return a > b (int8) 210// SIMD_IWRAPPER_2_CMP(cmpgt_epi16); // return a > b (int16) 211// SIMD_IWRAPPER_2_CMP(cmpgt_epi32); // return a > b (int32) 212// SIMD_IWRAPPER_2_CMP(cmpgt_epi64); // return a > b (int64) 213// 214// static SIMDINLINE Integer SIMDCALL cmplt_epi32(Integer a, Integer b) // return a < b (int32) 215//{ 216// return cmpgt_epi32(b, a); 217//} 218 219//----------------------------------------------------------------------- 220// Blend / shuffle / permute operations 221//----------------------------------------------------------------------- 222// SIMD_IWRAPPER_2_8(packs_epi16); // int16 --> int8 See documentation for _mm256_packs_epi16 223// and _mm512_packs_epi16 SIMD_IWRAPPER_2_16(packs_epi32); // int32 --> int16 See documentation 224// for _mm256_packs_epi32 and _mm512_packs_epi32 SIMD_IWRAPPER_2_8(packus_epi16); // uint16 --> 225// uint8 See documentation for _mm256_packus_epi16 and _mm512_packus_epi16 226// SIMD_IWRAPPER_2_16(packus_epi32); // uint32 --> uint16 See documentation for 227// _mm256_packus_epi32 and _mm512_packus_epi32 228 229// SIMD_IWRAPPER_2_(permute_epi32, permutevar8x32_epi32); 230 231// static SIMDINLINE Float SIMDCALL permute_ps(Float a, Integer swiz) // return a[swiz[i]] for 232// each 32-bit lane i (float) 233//{ 234// return _mm256_permutevar8x32_ps(a, swiz); 235//} 236 237SIMD_IWRAPPER_1I_32(shuffle_epi32); 238// template<int ImmT> 239// static SIMDINLINE Integer SIMDCALL shuffle_epi64(Integer a, Integer b) 240//{ 241// return castpd_si(shuffle_pd<ImmT>(castsi_pd(a), castsi_pd(b))); 242//} 243// SIMD_IWRAPPER_2(shuffle_epi8); 244SIMD_IWRAPPER_2_32(unpackhi_epi32); 245SIMD_IWRAPPER_2_32(unpacklo_epi32); 246 247// SIMD_IWRAPPER_2_16(unpackhi_epi16); 248// SIMD_IWRAPPER_2_64(unpackhi_epi64); 249// SIMD_IWRAPPER_2_8(unpackhi_epi8); 250// SIMD_IWRAPPER_2_16(unpacklo_epi16); 251// SIMD_IWRAPPER_2_64(unpacklo_epi64); 252// SIMD_IWRAPPER_2_8(unpacklo_epi8); 253 254//----------------------------------------------------------------------- 255// Load / store operations 256//----------------------------------------------------------------------- 257static SIMDINLINE Float SIMDCALL 258 load_ps(float const* p) // return *p (loads SIMD width elements from memory) 259{ 260 return __conv(_mm512_maskz_loadu_ps(__mmask16(0xff), p)); 261} 262 263static SIMDINLINE Integer SIMDCALL load_si(Integer const* p) // return *p 264{ 265 return __conv(_mm512_maskz_loadu_epi32(__mmask16(0xff), p)); 266} 267 268static SIMDINLINE Float SIMDCALL 269 loadu_ps(float const* p) // return *p (same as load_ps but allows for unaligned mem) 270{ 271 return __conv(_mm512_maskz_loadu_ps(__mmask16(0xff), p)); 272} 273 274static SIMDINLINE Integer SIMDCALL 275 loadu_si(Integer const* p) // return *p (same as load_si but allows for unaligned mem) 276{ 277 return __conv(_mm512_maskz_loadu_epi32(__mmask16(0xff), p)); 278} 279 280template <ScaleFactor ScaleT = ScaleFactor::SF_1> 281static SIMDINLINE Float SIMDCALL 282 i32gather_ps(float const* p, Integer idx) // return *(float*)(((int8*)p) + (idx * ScaleT)) 283{ 284 return __conv(_mm512_mask_i32gather_ps( 285 _mm512_setzero_ps(), __mmask16(0xff), __conv(idx), p, static_cast<int>(ScaleT))); 286} 287 288// for each element: (mask & (1 << 31)) ? (i32gather_ps<ScaleT>(p, idx), mask = 0) : old 289template <ScaleFactor ScaleT = ScaleFactor::SF_1> 290static SIMDINLINE Float SIMDCALL 291 mask_i32gather_ps(Float old, float const* p, Integer idx, Float mask) 292{ 293 __mmask16 m = 0xff; 294 m = _mm512_mask_test_epi32_mask( 295 m, _mm512_castps_si512(__conv(mask)), _mm512_set1_epi32(0x80000000)); 296 return __conv( 297 _mm512_mask_i32gather_ps(__conv(old), m, __conv(idx), p, static_cast<int>(ScaleT))); 298} 299 300// static SIMDINLINE uint32_t SIMDCALL movemask_epi8(Integer a) 301// { 302// __mmask64 m = 0xffffffffull; 303// return static_cast<uint32_t>( 304// _mm512_mask_test_epi8_mask(m, __conv(a), _mm512_set1_epi8(0x80))); 305// } 306 307static SIMDINLINE void SIMDCALL maskstore_ps(float* p, Integer mask, Float src) 308{ 309 __mmask16 m = 0xff; 310 m = _mm512_mask_test_epi32_mask(m, __conv(mask), _mm512_set1_epi32(0x80000000)); 311 _mm512_mask_storeu_ps(p, m, __conv(src)); 312} 313 314static SIMDINLINE void SIMDCALL 315 store_ps(float* p, Float a) // *p = a (stores all elements contiguously in memory) 316{ 317 _mm512_mask_storeu_ps(p, __mmask16(0xff), __conv(a)); 318} 319 320static SIMDINLINE void SIMDCALL store_si(Integer* p, Integer a) // *p = a 321{ 322 _mm512_mask_storeu_epi32(p, __mmask16(0xff), __conv(a)); 323} 324 325static SIMDINLINE Float SIMDCALL vmask_ps(int32_t mask) 326{ 327 return castsi_ps(__conv(_mm512_maskz_set1_epi32(__mmask16(mask & 0xff), -1))); 328} 329 330//======================================================================= 331// Legacy interface (available only in SIMD256 width) 332//======================================================================= 333 334#undef SIMD_WRAPPER_1_ 335#undef SIMD_WRAPPER_1 336#undef SIMD_WRAPPER_1I_ 337#undef SIMD_WRAPPER_1I 338#undef SIMD_WRAPPER_2_ 339#undef SIMD_WRAPPER_2 340#undef SIMD_WRAPPER_2I 341#undef SIMD_WRAPPER_3_ 342#undef SIMD_WRAPPER_3 343#undef SIMD_IWRAPPER_1_ 344#undef SIMD_IWRAPPER_1_32 345#undef SIMD_IWRAPPER_1I_ 346#undef SIMD_IWRAPPER_1I_32 347#undef SIMD_IWRAPPER_2_ 348#undef SIMD_IWRAPPER_2_32 349#undef SIMD_IWRAPPER_2I 350