| // 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/gavgpool.h> |
| |
| |
| void xnn_q8_gavgpool_ukernel_up7__sse2( |
| size_t m, |
| size_t n, |
| const uint8_t* input, |
| size_t input_stride, |
| const uint8_t* zero, |
| uint8_t* output, |
| const union xnn_q8_avgpool_params params[restrict static 1]) |
| { |
| assert(m != 0); |
| assert(m <= 7); |
| assert(n != 0); |
| |
| const uint8_t* i0 = input; |
| const uint8_t* i1 = (const uint8_t*) ((uintptr_t) i0 + input_stride); |
| if (m < 2) { |
| i1 = zero; |
| } |
| const uint8_t* i2 = (const uint8_t*) ((uintptr_t) i1 + input_stride); |
| if (m <= 2) { |
| i2 = zero; |
| } |
| const uint8_t* i3 = (const uint8_t*) ((uintptr_t) i2 + input_stride); |
| if (m < 4) { |
| i3 = zero; |
| } |
| const uint8_t* i4 = (const uint8_t*) ((uintptr_t) i3 + input_stride); |
| if (m <= 4) { |
| i4 = zero; |
| } |
| const uint8_t* i5 = (const uint8_t*) ((uintptr_t) i4 + input_stride); |
| if (m < 6) { |
| i5 = zero; |
| } |
| const uint8_t* i6 = (const uint8_t*) ((uintptr_t) i5 + input_stride); |
| if (m <= 6) { |
| i6 = zero; |
| } |
| |
| 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); |
| |
| while (n >= 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 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 vsum01 = _mm_add_epi16(vxi0, vxi1); |
| const __m128i vsum23 = _mm_add_epi16(vxi2, vxi3); |
| const __m128i vsum45 = _mm_add_epi16(vxi4, vxi5); |
| |
| const __m128i vsum016 = _mm_add_epi16(vsum01, vxi6); |
| const __m128i vsum2345 = _mm_add_epi16(vsum23, vsum45); |
| const __m128i vsum = _mm_add_epi16(vsum016, vsum2345); |
| |
| __m128i vacc_lo = _mm_add_epi32(vbias, _mm_unpacklo_epi16(vsum, vzero)); |
| __m128i vacc_hi = _mm_add_epi32(vbias, _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*) params->sse2.output_zero_point)); |
| vout = _mm_packus_epi16(vout, vout); |
| vout = _mm_min_epu8(vout, _mm_load_si128((const __m128i*) params->sse2.output_max)); |
| vout = _mm_max_epu8(vout, _mm_load_si128((const __m128i*) params->sse2.output_min)); |
| |
| _mm_storel_epi64((__m128i*) output, vout); output += 8; |
| |
| n -= 8; |
| } |
| if (n != 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 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 vsum01 = _mm_add_epi16(vxi0, vxi1); |
| const __m128i vsum23 = _mm_add_epi16(vxi2, vxi3); |
| const __m128i vsum45 = _mm_add_epi16(vxi4, vxi5); |
| |
| const __m128i vsum016 = _mm_add_epi16(vsum01, vxi6); |
| const __m128i vsum2345 = _mm_add_epi16(vsum23, vsum45); |
| const __m128i vsum = _mm_add_epi16(vsum016, vsum2345); |
| |
| __m128i vacc_lo = _mm_add_epi32(vbias, _mm_unpacklo_epi16(vsum, vzero)); |
| __m128i vacc_hi = _mm_add_epi32(vbias, _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*) params->sse2.output_zero_point)); |
| vout = _mm_packus_epi16(vout, vout); |
| vout = _mm_min_epu8(vout, _mm_load_si128((const __m128i*) params->sse2.output_max)); |
| vout = _mm_max_epu8(vout, _mm_load_si128((const __m128i*) params->sse2.output_min)); |
| |
| if (n & 4) { |
| *((uint32_t*) output) = (uint32_t) _mm_cvtsi128_si32(vout); |
| output += 4; |
| vout = _mm_srli_epi64(vout, 32); |
| } |
| if (n & 2) { |
| *((uint16_t*) output) = (uint16_t) _mm_extract_epi16(vout, 0); |
| output += 2; |
| vout = _mm_srli_epi32(vout, 16); |
| } |
| if (n & 1) { |
| *((uint8_t*) output) = (uint8_t) _mm_cvtsi128_si32(vout); |
| } |
| } |
| } |
