src/qu8-avgpool/9x-minmax-sse2-c8.c - platform/external/XNNPACK - Git at Google

 // 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>
 #include <xnnpack/unaligned.h>


 void xnn_qu8_avgpool_minmax_ukernel_9x__sse2_c8(
     size_t output_pixels,
     size_t kernel_elements,
     size_t channels,
     const uint8_t** input,
     size_t input_offset,
     const uint8_t* zero,
     uint8_t* output,
     size_t input_increment,
     size_t output_increment,
     const union xnn_qu8_avgpool_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
 {
   assert(output_pixels != 0);
   assert(kernel_elements != 0);
   assert(kernel_elements <= 9);
   assert(channels != 0);

   const __m128i vbias = _mm_load_si128((const __m128i*) &params->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[0];
     assert(i0 != NULL);
     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];
     const uint8_t* i8 = input[8];
     input = (const uint8_t**) ((uintptr_t) input + input_increment);
     if (kernel_elements < 2) {
       i1 = zero;
     }
     assert(i1 != NULL);
     if (kernel_elements <= 2) {
       i2 = zero;
     }
     assert(i2 != NULL);
     if (kernel_elements < 4) {
       i3 = zero;
     }
     assert(i3 != NULL);
     if (kernel_elements <= 4) {
       i4 = zero;
     }
     assert(i4 != NULL);
     if (kernel_elements < 6) {
       i5 = zero;
     }
     assert(i5 != NULL);
     if (kernel_elements <= 6) {
       i6 = zero;
     }
     assert(i6 != NULL);
     if (kernel_elements < 8) {
       i7 = zero;
     }
     assert(i7 != NULL);
     if (kernel_elements <= 8) {
       i8 = zero;
     }
     assert(i8 != NULL);
     if XNN_UNPREDICTABLE(i0 != zero) {
       i0 = (const uint8_t*) ((uintptr_t) i0 + input_offset);
     }
     if XNN_UNPREDICTABLE(i1 != zero) {
       i1 = (const uint8_t*) ((uintptr_t) i1 + input_offset);
     }
     if XNN_UNPREDICTABLE(i2 != zero) {
       i2 = (const uint8_t*) ((uintptr_t) i2 + input_offset);
     }
     if XNN_UNPREDICTABLE(i3 != zero) {
       i3 = (const uint8_t*) ((uintptr_t) i3 + input_offset);
     }
     if XNN_UNPREDICTABLE(i4 != zero) {
       i4 = (const uint8_t*) ((uintptr_t) i4 + input_offset);
     }
     if XNN_UNPREDICTABLE(i5 != zero) {
       i5 = (const uint8_t*) ((uintptr_t) i5 + input_offset);
     }
     if XNN_UNPREDICTABLE(i6 != zero) {
       i6 = (const uint8_t*) ((uintptr_t) i6 + input_offset);
     }
     if XNN_UNPREDICTABLE(i7 != zero) {
       i7 = (const uint8_t*) ((uintptr_t) i7 + input_offset);
     }
     if XNN_UNPREDICTABLE(i8 != zero) {
       i8 = (const uint8_t*) ((uintptr_t) i8 + input_offset);
     }

     size_t c = channels;
     while (c >= 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));

       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;

       c -= 8;
     }
     if (c != 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);
       const __m128i vi8 = _mm_loadl_epi64((const __m128i*) i8);

       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));

       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 (c & 4) {
         unaligned_store_u32(output, (uint32_t) _mm_cvtsi128_si32(vout));
         output += 4;
         vout = _mm_srli_epi64(vout, 32);
       }
       if (c & 2) {
         unaligned_store_u16(output, (uint16_t) _mm_extract_epi16(vout, 0));
         output += 2;
         vout = _mm_srli_epi32(vout, 16);
       }
       if (c & 1) {
         *output = (uint8_t) _mm_cvtsi128_si32(vout);
         output += 1;
       }
     }
     output = (uint8_t*) ((uintptr_t) output + output_increment);
   } while (--output_pixels != 0);
 }
	// 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>
	#include <xnnpack/unaligned.h>


	void xnn_qu8_avgpool_minmax_ukernel_9x__sse2_c8(
	size_t output_pixels,
	size_t kernel_elements,
	size_t channels,
	const uint8_t** input,
	size_t input_offset,
	const uint8_t* zero,
	uint8_t* output,
	size_t input_increment,
	size_t output_increment,
	const union xnn_qu8_avgpool_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
	{
	assert(output_pixels != 0);
	assert(kernel_elements != 0);
	assert(kernel_elements <= 9);
	assert(channels != 0);

	const __m128i vbias = _mm_load_si128((const __m128i*) &params->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[0];
	assert(i0 != NULL);
	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];
	const uint8_t* i8 = input[8];
	input = (const uint8_t**) ((uintptr_t) input + input_increment);
	if (kernel_elements < 2) {
	i1 = zero;
	}
	assert(i1 != NULL);
	if (kernel_elements <= 2) {
	i2 = zero;
	}
	assert(i2 != NULL);
	if (kernel_elements < 4) {
	i3 = zero;
	}
	assert(i3 != NULL);
	if (kernel_elements <= 4) {
	i4 = zero;
	}
	assert(i4 != NULL);
	if (kernel_elements < 6) {
	i5 = zero;
	}
	assert(i5 != NULL);
	if (kernel_elements <= 6) {
	i6 = zero;
	}
	assert(i6 != NULL);
	if (kernel_elements < 8) {
	i7 = zero;
	}
	assert(i7 != NULL);
	if (kernel_elements <= 8) {
	i8 = zero;
	}
	assert(i8 != NULL);
	if XNN_UNPREDICTABLE(i0 != zero) {
	i0 = (const uint8_t*) ((uintptr_t) i0 + input_offset);
	}
	if XNN_UNPREDICTABLE(i1 != zero) {
	i1 = (const uint8_t*) ((uintptr_t) i1 + input_offset);
	}
	if XNN_UNPREDICTABLE(i2 != zero) {
	i2 = (const uint8_t*) ((uintptr_t) i2 + input_offset);
	}
	if XNN_UNPREDICTABLE(i3 != zero) {
	i3 = (const uint8_t*) ((uintptr_t) i3 + input_offset);
	}
	if XNN_UNPREDICTABLE(i4 != zero) {
	i4 = (const uint8_t*) ((uintptr_t) i4 + input_offset);
	}
	if XNN_UNPREDICTABLE(i5 != zero) {
	i5 = (const uint8_t*) ((uintptr_t) i5 + input_offset);
	}
	if XNN_UNPREDICTABLE(i6 != zero) {
	i6 = (const uint8_t*) ((uintptr_t) i6 + input_offset);
	}
	if XNN_UNPREDICTABLE(i7 != zero) {
	i7 = (const uint8_t*) ((uintptr_t) i7 + input_offset);
	}
	if XNN_UNPREDICTABLE(i8 != zero) {
	i8 = (const uint8_t*) ((uintptr_t) i8 + input_offset);
	}

	size_t c = channels;
	while (c >= 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));

	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;

	c -= 8;
	}
	if (c != 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);
	const __m128i vi8 = _mm_loadl_epi64((const __m128i*) i8);

	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));

	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 (c & 4) {
	unaligned_store_u32(output, (uint32_t) _mm_cvtsi128_si32(vout));
	output += 4;
	vout = _mm_srli_epi64(vout, 32);
	}
	if (c & 2) {
	unaligned_store_u16(output, (uint16_t) _mm_extract_epi16(vout, 0));
	output += 2;
	vout = _mm_srli_epi32(vout, 16);
	}
	if (c & 1) {
	*output = (uint8_t) _mm_cvtsi128_si32(vout);
	output += 1;
	}
	}
	output = (uint8_t*) ((uintptr_t) output + output_increment);
	} while (--output_pixels != 0);
	}