| // Copyright (c) Facebook, Inc. and its affiliates. |
| // All rights reserved. |
| // |
| // Copyright 2019 Google LLC |
| // |
| // This source code is licensed under the BSD-style license found in the |
| // LICENSE file in the root directory of this source tree. |
| |
| #include <assert.h> |
| |
| #include <emmintrin.h> |
| |
| #include <xnnpack/avgpool.h> |
| |
| |
| void xnn_q8_avgpool_ukernel_mp9p8q__sse2( |
| size_t n, |
| size_t ks, |
| size_t kc, |
| const uint8_t** input, |
| const uint8_t* zero, |
| int32_t* buffer, |
| uint8_t* output, |
| size_t input_increment, |
| size_t output_increment, |
| const union xnn_q8_avgpool_params params[restrict static 1]) |
| { |
| assert(n != 0); |
| assert(ks > 9); |
| assert(kc != 0); |
| |
| const __m128i vbias = _mm_load_si128((const __m128i*) ¶ms->sse2.bias); |
| const __m128i vzero = _mm_setzero_si128(); |
| const __m128i vmultiplier = _mm_load_si128((const __m128i*) params->sse2.multiplier); |
| const __m128i vrounding = _mm_load_si128((const __m128i*) params->sse2.rounding); |
| const __m128i vright_shift = _mm_loadl_epi64((const __m128i*) params->sse2.right_shift); |
| |
| do { |
| { |
| const uint8_t* i0 = *input++; |
| const uint8_t* i1 = *input++; |
| const uint8_t* i2 = *input++; |
| const uint8_t* i3 = *input++; |
| const uint8_t* i4 = *input++; |
| const uint8_t* i5 = *input++; |
| const uint8_t* i6 = *input++; |
| const uint8_t* i7 = *input++; |
| const uint8_t* i8 = *input++; |
| |
| int32_t* acc = buffer; |
| for (size_t k = 0; k < kc; k += 8) { |
| const __m128i vi0 = _mm_loadl_epi64((const __m128i*) i0); i0 += 8; |
| const __m128i vi1 = _mm_loadl_epi64((const __m128i*) i1); i1 += 8; |
| const __m128i vi2 = _mm_loadl_epi64((const __m128i*) i2); i2 += 8; |
| const __m128i vi3 = _mm_loadl_epi64((const __m128i*) i3); i3 += 8; |
| const __m128i vi4 = _mm_loadl_epi64((const __m128i*) i4); i4 += 8; |
| const __m128i vi5 = _mm_loadl_epi64((const __m128i*) i5); i5 += 8; |
| const __m128i vi6 = _mm_loadl_epi64((const __m128i*) i6); i6 += 8; |
| const __m128i vi7 = _mm_loadl_epi64((const __m128i*) i7); i7 += 8; |
| const __m128i vi8 = _mm_loadl_epi64((const __m128i*) i8); i8 += 8; |
| |
| const __m128i vxi0 = _mm_unpacklo_epi8(vi0, vzero); |
| const __m128i vxi1 = _mm_unpacklo_epi8(vi1, vzero); |
| const __m128i vxi2 = _mm_unpacklo_epi8(vi2, vzero); |
| const __m128i vxi3 = _mm_unpacklo_epi8(vi3, vzero); |
| const __m128i vxi4 = _mm_unpacklo_epi8(vi4, vzero); |
| const __m128i vxi5 = _mm_unpacklo_epi8(vi5, vzero); |
| const __m128i vxi6 = _mm_unpacklo_epi8(vi6, vzero); |
| const __m128i vxi7 = _mm_unpacklo_epi8(vi7, vzero); |
| const __m128i vxi8 = _mm_unpacklo_epi8(vi8, vzero); |
| |
| const __m128i vsum018 = _mm_add_epi16(_mm_add_epi16(vxi0, vxi1), vxi8); |
| const __m128i vsum23 = _mm_add_epi16(vxi2, vxi3); |
| const __m128i vsum45 = _mm_add_epi16(vxi4, vxi5); |
| const __m128i vsum67 = _mm_add_epi16(vxi6, vxi7); |
| |
| const __m128i vsum2345 = _mm_add_epi16(vsum23, vsum45); |
| const __m128i vsum01678 = _mm_add_epi16(vsum018, vsum67); |
| const __m128i vsum = _mm_add_epi16(vsum2345, vsum01678); |
| |
| const __m128i vacc_lo = _mm_add_epi32(vbias, _mm_unpacklo_epi16(vsum, vzero)); |
| const __m128i vacc_hi = _mm_add_epi32(vbias, _mm_unpackhi_epi16(vsum, vzero)); |
| |
| _mm_store_si128((__m128i*) acc, vacc_lo); |
| _mm_store_si128((__m128i*) acc + 1, vacc_hi); |
| acc += 8; |
| } |
| } |
| |
| size_t m = ks; |
| for (m -= 9; m > 8; m -= 8) { |
| const uint8_t* i0 = *input++; |
| const uint8_t* i1 = *input++; |
| const uint8_t* i2 = *input++; |
| const uint8_t* i3 = *input++; |
| const uint8_t* i4 = *input++; |
| const uint8_t* i5 = *input++; |
| const uint8_t* i6 = *input++; |
| const uint8_t* i7 = *input++; |
| |
| int32_t* acc = buffer; |
| for (size_t k = 0; k < kc; k += 8) { |
| const __m128i vi0 = _mm_loadl_epi64((const __m128i*) i0); i0 += 8; |
| const __m128i vi1 = _mm_loadl_epi64((const __m128i*) i1); i1 += 8; |
| const __m128i vi2 = _mm_loadl_epi64((const __m128i*) i2); i2 += 8; |
| const __m128i vi3 = _mm_loadl_epi64((const __m128i*) i3); i3 += 8; |
| const __m128i vi4 = _mm_loadl_epi64((const __m128i*) i4); i4 += 8; |
| const __m128i vi5 = _mm_loadl_epi64((const __m128i*) i5); i5 += 8; |
| const __m128i vi6 = _mm_loadl_epi64((const __m128i*) i6); i6 += 8; |
| const __m128i vi7 = _mm_loadl_epi64((const __m128i*) i7); i7 += 8; |
| __m128i vacc_lo = _mm_load_si128((const __m128i*) acc); |
| __m128i vacc_hi = _mm_load_si128((const __m128i*) acc + 1); |
| |
| const __m128i vxi0 = _mm_unpacklo_epi8(vi0, vzero); |
| const __m128i vxi1 = _mm_unpacklo_epi8(vi1, vzero); |
| const __m128i vxi2 = _mm_unpacklo_epi8(vi2, vzero); |
| const __m128i vxi3 = _mm_unpacklo_epi8(vi3, vzero); |
| const __m128i vxi4 = _mm_unpacklo_epi8(vi4, vzero); |
| const __m128i vxi5 = _mm_unpacklo_epi8(vi5, vzero); |
| const __m128i vxi6 = _mm_unpacklo_epi8(vi6, vzero); |
| const __m128i vxi7 = _mm_unpacklo_epi8(vi7, vzero); |
| |
| const __m128i vsum01 = _mm_add_epi16(vxi0, vxi1); |
| const __m128i vsum23 = _mm_add_epi16(vxi2, vxi3); |
| const __m128i vsum45 = _mm_add_epi16(vxi4, vxi5); |
| const __m128i vsum67 = _mm_add_epi16(vxi6, vxi7); |
| |
| const __m128i vsum0123 = _mm_add_epi16(vsum01, vsum23); |
| const __m128i vsum4567 = _mm_add_epi16(vsum45, vsum67); |
| const __m128i vsum = _mm_add_epi16(vsum0123, vsum4567); |
| |
| vacc_lo = _mm_add_epi32(vacc_lo, _mm_unpacklo_epi16(vsum, vzero)); |
| vacc_hi = _mm_add_epi32(vacc_hi, _mm_unpackhi_epi16(vsum, vzero)); |
| |
| _mm_store_si128((__m128i*) acc, vacc_lo); |
| _mm_store_si128((__m128i*) acc + 1, vacc_hi); |
| acc += 8; |
| } |
| } |
| |
| { |
| const uint8_t* i0 = input[0]; |
| const uint8_t* i1 = input[1]; |
| const uint8_t* i2 = input[2]; |
| const uint8_t* i3 = input[3]; |
| const uint8_t* i4 = input[4]; |
| const uint8_t* i5 = input[5]; |
| const uint8_t* i6 = input[6]; |
| const uint8_t* i7 = input[7]; |
| input = (const uint8_t**) ((uintptr_t) input + input_increment); |
| if (m < 2) { |
| i1 = zero; |
| } |
| if (m <= 2) { |
| i2 = zero; |
| } |
| if (m < 4) { |
| i3 = zero; |
| } |
| if (m <= 4) { |
| i4 = zero; |
| } |
| if (m < 6) { |
| i5 = zero; |
| } |
| if (m <= 6) { |
| i6 = zero; |
| } |
| if (m != 8) { |
| i7 = zero; |
| } |
| |
| size_t k = kc; |
| int32_t* acc = buffer; |
| while (k >= 8) { |
| const __m128i vi0 = _mm_loadl_epi64((const __m128i*) i0); i0 += 8; |
| const __m128i vi1 = _mm_loadl_epi64((const __m128i*) i1); i1 += 8; |
| const __m128i vi2 = _mm_loadl_epi64((const __m128i*) i2); i2 += 8; |
| const __m128i vi3 = _mm_loadl_epi64((const __m128i*) i3); i3 += 8; |
| const __m128i vi4 = _mm_loadl_epi64((const __m128i*) i4); i4 += 8; |
| const __m128i vi5 = _mm_loadl_epi64((const __m128i*) i5); i5 += 8; |
| const __m128i vi6 = _mm_loadl_epi64((const __m128i*) i6); i6 += 8; |
| const __m128i vi7 = _mm_loadl_epi64((const __m128i*) i7); i7 += 8; |
| __m128i vacc_lo = _mm_load_si128((const __m128i*) acc); |
| __m128i vacc_hi = _mm_load_si128((const __m128i*) acc + 1); |
| acc += 8; |
| |
| const __m128i vxi0 = _mm_unpacklo_epi8(vi0, vzero); |
| const __m128i vxi1 = _mm_unpacklo_epi8(vi1, vzero); |
| const __m128i vxi2 = _mm_unpacklo_epi8(vi2, vzero); |
| const __m128i vxi3 = _mm_unpacklo_epi8(vi3, vzero); |
| const __m128i vxi4 = _mm_unpacklo_epi8(vi4, vzero); |
| const __m128i vxi5 = _mm_unpacklo_epi8(vi5, vzero); |
| const __m128i vxi6 = _mm_unpacklo_epi8(vi6, vzero); |
| const __m128i vxi7 = _mm_unpacklo_epi8(vi7, vzero); |
| |
| const __m128i vsum01 = _mm_add_epi16(vxi0, vxi1); |
| const __m128i vsum23 = _mm_add_epi16(vxi2, vxi3); |
| const __m128i vsum45 = _mm_add_epi16(vxi4, vxi5); |
| const __m128i vsum67 = _mm_add_epi16(vxi6, vxi7); |
| |
| const __m128i vsum0123 = _mm_add_epi16(vsum01, vsum23); |
| const __m128i vsum4567 = _mm_add_epi16(vsum45, vsum67); |
| const __m128i vsum = _mm_add_epi16(vsum0123, vsum4567); |
| |
| vacc_lo = _mm_add_epi32(vacc_lo, _mm_unpacklo_epi16(vsum, vzero)); |
| vacc_hi = _mm_add_epi32(vacc_hi, _mm_unpackhi_epi16(vsum, vzero)); |
| |
| const __m128i vneg_mask_lo = _mm_cmpgt_epi32(_mm_setzero_si128(), vacc_lo); |
| const __m128i vneg_mask_hi = _mm_cmpgt_epi32(_mm_setzero_si128(), vacc_hi); |
| |
| const __m128i vabs_lo0123 = _mm_sub_epi32(_mm_xor_si128(vacc_lo, vneg_mask_lo), vneg_mask_lo); |
| const __m128i vabs_hi0123 = _mm_sub_epi32(_mm_xor_si128(vacc_hi, vneg_mask_hi), vneg_mask_hi); |
| |
| const __m128i vabs_lo1032 = _mm_shuffle_epi32(vabs_lo0123, _MM_SHUFFLE(2, 3, 0, 1)); |
| const __m128i vabs_hi1032 = _mm_shuffle_epi32(vabs_hi0123, _MM_SHUFFLE(2, 3, 0, 1)); |
| |
| const __m128i vabsmul_lo02 = _mm_mul_epu32(vabs_lo0123, vmultiplier); |
| const __m128i vabsmul_hi02 = _mm_mul_epu32(vabs_hi0123, vmultiplier); |
| |
| const __m128i vabsmul_lo13 = _mm_mul_epu32(vabs_lo1032, vmultiplier); |
| const __m128i vabsmul_hi13 = _mm_mul_epu32(vabs_hi1032, vmultiplier); |
| |
| const __m128i vabs_scaled_lo02 = _mm_srl_epi64(_mm_add_epi64(vabsmul_lo02, vrounding), vright_shift); |
| const __m128i vabs_scaled_lo13 = _mm_srl_epi64(_mm_add_epi64(vabsmul_lo13, vrounding), vright_shift); |
| const __m128i vabs_scaled_hi02 = _mm_srl_epi64(_mm_add_epi64(vabsmul_hi02, vrounding), vright_shift); |
| const __m128i vabs_scaled_hi13 = _mm_srl_epi64(_mm_add_epi64(vabsmul_hi13, vrounding), vright_shift); |
| |
| const __m128i vabs_scaled_lo0213 = _mm_castps_si128( |
| _mm_shuffle_ps(_mm_castsi128_ps(vabs_scaled_lo02), _mm_castsi128_ps(vabs_scaled_lo13), _MM_SHUFFLE(2, 0, 2, 0))); |
| const __m128i vabs_scaled_hi0213 = _mm_castps_si128( |
| _mm_shuffle_ps(_mm_castsi128_ps(vabs_scaled_hi02), _mm_castsi128_ps(vabs_scaled_hi13), _MM_SHUFFLE(2, 0, 2, 0))); |
| |
| const __m128i vabs_scaled_lo = _mm_shuffle_epi32(vabs_scaled_lo0213, _MM_SHUFFLE(3, 1, 2, 0)); |
| const __m128i vabs_scaled_hi = _mm_shuffle_epi32(vabs_scaled_hi0213, _MM_SHUFFLE(3, 1, 2, 0)); |
| |
| const __m128i vscaled_lo = _mm_sub_epi32(_mm_xor_si128(vabs_scaled_lo, vneg_mask_lo), vneg_mask_lo); |
| const __m128i vscaled_hi = _mm_sub_epi32(_mm_xor_si128(vabs_scaled_hi, vneg_mask_hi), vneg_mask_hi); |
| |
| __m128i vout = _mm_packs_epi32(vscaled_lo, vscaled_hi); |
| vout = _mm_adds_epi16(vout, _mm_load_si128((const __m128i*) ¶ms->sse2.output_zero_point)); |
| vout = _mm_packus_epi16(vout, vout); |
| vout = _mm_min_epu8(vout, _mm_load_si128((const __m128i*) ¶ms->sse2.output_max)); |
| vout = _mm_max_epu8(vout, _mm_load_si128((const __m128i*) ¶ms->sse2.output_min)); |
| |
| _mm_storel_epi64((__m128i*) output, vout); |
| output += 8; |
| |
| k -= 8; |
| } |
| if (k != 0) { |
| const __m128i vi0 = _mm_loadl_epi64((const __m128i*) i0); |
| const __m128i vi1 = _mm_loadl_epi64((const __m128i*) i1); |
| const __m128i vi2 = _mm_loadl_epi64((const __m128i*) i2); |
| const __m128i vi3 = _mm_loadl_epi64((const __m128i*) i3); |
| const __m128i vi4 = _mm_loadl_epi64((const __m128i*) i4); |
| const __m128i vi5 = _mm_loadl_epi64((const __m128i*) i5); |
| const __m128i vi6 = _mm_loadl_epi64((const __m128i*) i6); |
| const __m128i vi7 = _mm_loadl_epi64((const __m128i*) i7); |
| __m128i vacc_lo = _mm_load_si128((const __m128i*) acc); |
| __m128i vacc_hi = _mm_load_si128((const __m128i*) acc + 1); |
| |
| const __m128i vxi0 = _mm_unpacklo_epi8(vi0, vzero); |
| const __m128i vxi1 = _mm_unpacklo_epi8(vi1, vzero); |
| const __m128i vxi2 = _mm_unpacklo_epi8(vi2, vzero); |
| const __m128i vxi3 = _mm_unpacklo_epi8(vi3, vzero); |
| const __m128i vxi4 = _mm_unpacklo_epi8(vi4, vzero); |
| const __m128i vxi5 = _mm_unpacklo_epi8(vi5, vzero); |
| const __m128i vxi6 = _mm_unpacklo_epi8(vi6, vzero); |
| const __m128i vxi7 = _mm_unpacklo_epi8(vi7, vzero); |
| |
| const __m128i vsum01 = _mm_add_epi16(vxi0, vxi1); |
| const __m128i vsum23 = _mm_add_epi16(vxi2, vxi3); |
| const __m128i vsum45 = _mm_add_epi16(vxi4, vxi5); |
| const __m128i vsum67 = _mm_add_epi16(vxi6, vxi7); |
| |
| const __m128i vsum0123 = _mm_add_epi16(vsum01, vsum23); |
| const __m128i vsum4567 = _mm_add_epi16(vsum45, vsum67); |
| const __m128i vsum = _mm_add_epi16(vsum0123, vsum4567); |
| |
| vacc_lo = _mm_add_epi32(vacc_lo, _mm_unpacklo_epi16(vsum, vzero)); |
| vacc_hi = _mm_add_epi32(vacc_hi, _mm_unpackhi_epi16(vsum, vzero)); |
| |
| const __m128i vneg_mask_lo = _mm_cmpgt_epi32(_mm_setzero_si128(), vacc_lo); |
| const __m128i vneg_mask_hi = _mm_cmpgt_epi32(_mm_setzero_si128(), vacc_hi); |
| |
| const __m128i vabs_lo0123 = _mm_sub_epi32(_mm_xor_si128(vacc_lo, vneg_mask_lo), vneg_mask_lo); |
| const __m128i vabs_hi0123 = _mm_sub_epi32(_mm_xor_si128(vacc_hi, vneg_mask_hi), vneg_mask_hi); |
| |
| const __m128i vabs_lo1032 = _mm_shuffle_epi32(vabs_lo0123, _MM_SHUFFLE(2, 3, 0, 1)); |
| const __m128i vabs_hi1032 = _mm_shuffle_epi32(vabs_hi0123, _MM_SHUFFLE(2, 3, 0, 1)); |
| |
| const __m128i vabsmul_lo02 = _mm_mul_epu32(vabs_lo0123, vmultiplier); |
| const __m128i vabsmul_hi02 = _mm_mul_epu32(vabs_hi0123, vmultiplier); |
| |
| const __m128i vabsmul_lo13 = _mm_mul_epu32(vabs_lo1032, vmultiplier); |
| const __m128i vabsmul_hi13 = _mm_mul_epu32(vabs_hi1032, vmultiplier); |
| |
| const __m128i vabs_scaled_lo02 = _mm_srl_epi64(_mm_add_epi64(vabsmul_lo02, vrounding), vright_shift); |
| const __m128i vabs_scaled_lo13 = _mm_srl_epi64(_mm_add_epi64(vabsmul_lo13, vrounding), vright_shift); |
| const __m128i vabs_scaled_hi02 = _mm_srl_epi64(_mm_add_epi64(vabsmul_hi02, vrounding), vright_shift); |
| const __m128i vabs_scaled_hi13 = _mm_srl_epi64(_mm_add_epi64(vabsmul_hi13, vrounding), vright_shift); |
| |
| const __m128i vabs_scaled_lo0213 = _mm_castps_si128( |
| _mm_shuffle_ps(_mm_castsi128_ps(vabs_scaled_lo02), _mm_castsi128_ps(vabs_scaled_lo13), _MM_SHUFFLE(2, 0, 2, 0))); |
| const __m128i vabs_scaled_hi0213 = _mm_castps_si128( |
| _mm_shuffle_ps(_mm_castsi128_ps(vabs_scaled_hi02), _mm_castsi128_ps(vabs_scaled_hi13), _MM_SHUFFLE(2, 0, 2, 0))); |
| |
| const __m128i vabs_scaled_lo = _mm_shuffle_epi32(vabs_scaled_lo0213, _MM_SHUFFLE(3, 1, 2, 0)); |
| const __m128i vabs_scaled_hi = _mm_shuffle_epi32(vabs_scaled_hi0213, _MM_SHUFFLE(3, 1, 2, 0)); |
| |
| const __m128i vscaled_lo = _mm_sub_epi32(_mm_xor_si128(vabs_scaled_lo, vneg_mask_lo), vneg_mask_lo); |
| const __m128i vscaled_hi = _mm_sub_epi32(_mm_xor_si128(vabs_scaled_hi, vneg_mask_hi), vneg_mask_hi); |
| |
| __m128i vout = _mm_packs_epi32(vscaled_lo, vscaled_hi); |
| vout = _mm_adds_epi16(vout, _mm_load_si128((const __m128i*) ¶ms->sse2.output_zero_point)); |
| vout = _mm_packus_epi16(vout, vout); |
| vout = _mm_min_epu8(vout, _mm_load_si128((const __m128i*) ¶ms->sse2.output_max)); |
| vout = _mm_max_epu8(vout, _mm_load_si128((const __m128i*) ¶ms->sse2.output_min)); |
| |
| if (k & 4) { |
| *((uint32_t*) output) = (uint32_t) _mm_cvtsi128_si32(vout); |
| output += 4; |
| vout = _mm_srli_epi64(vout, 32); |
| } |
| if (k & 2) { |
| *((uint16_t*) output) = (uint16_t) _mm_extract_epi16(vout, 0); |
| output += 2; |
| vout = _mm_srli_epi32(vout, 16); |
| } |
| if (k & 1) { |
| *((uint8_t*) output) = (uint8_t) _mm_cvtsi128_si32(vout); |
| output += 1; |
| } |
| } |
| } |
| output = (uint8_t*) ((uintptr_t) output + output_increment); |
| } while (--n != 0); |
| } |