// clang-format off

// Auto-generated file. Do not edit!

//   Template: src/qs8-gemm/MRx4c8-sse.c.in

//   Generator: tools/xngen

//

// Copyright 2020 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 <stddef.h>

#include <stdint.h>

#include <emmintrin.h>

#include "src/xnnpack/common.h"

#include "src/xnnpack/gemm.h"

#include "src/xnnpack/math.h"

#include "src/xnnpack/microparams.h"

#include "src/xnnpack/unaligned.h"

void xnn_qu8_gemm_minmax_fp32_ukernel_1x4c8__sse2_ld64(

    size_t mr,

    size_t nc,

    size_t kc,

    const uint8_t* restrict a,

    size_t a_stride,

    const void* restrict w,

    uint8_t* restrict c,

    size_t cm_stride,

    size_t cn_stride,

    const union xnn_qu8_conv_minmax_params* restrict params) XNN_OOB_READS

{

  assert(mr != 0);

  assert(mr <= 1);

  assert(nc != 0);

  assert(kc != 0);

  assert(kc % sizeof(uint8_t) == 0);

  assert(a != NULL);

  assert(w != NULL);

  assert(c != NULL);

  kc = round_up_po2(kc, 8 * sizeof(uint8_t));

  const uint8_t* a0 = a;

  uint8_t* c0 = c;

  const __m128 vscale = _mm_set1_ps(params->fp32_scalar.scale);

  XNN_FORCE_REALIZATION(vscale);

  const __m128 voutput_max_less_zero_point = _mm_set1_ps((int32_t) params->fp32_scalar.output_max - (int32_t) params->fp32_scalar.output_zero_point);

  const __m128i voutput_zero_point = _mm_set1_epi16(params->fp32_scalar.output_zero_point);

  const __m128i voutput_min = _mm_set1_epi8(params->fp32_scalar.output_min);

  XNN_FORCE_REALIZATION(voutput_max_less_zero_point);

  XNN_FORCE_REALIZATION(voutput_zero_point);

  XNN_FORCE_REALIZATION(voutput_min);

  const __m128i vb_zero_point = _mm_set1_epi16(params->fp32_scalar.kernel_zero_point);

  XNN_FORCE_REALIZATION(vb_zero_point);

  do {

    __m128i vacc0x0 = _mm_cvtsi32_si128(((const int*) w)[0]);

    __m128i vacc0x1 = _mm_cvtsi32_si128(((const int*) w)[1]);

    __m128i vacc0x2 = _mm_cvtsi32_si128(((const int*) w)[2]);

    __m128i vacc0x3 = _mm_cvtsi32_si128(((const int*) w)[3]);

    w = (const int32_t*) w + 4;

    const __m128i vzero = _mm_setzero_si128();

    size_t k = kc;

    while (k >= 8 * sizeof(uint8_t)) {

      const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);

      const __m128i vxa0 = _mm_unpacklo_epi8(va0, vzero);

      a0 += 8;

      const __m128i vb0 = _mm_loadl_epi64((const __m128i*) w);

      const __m128i vxb0 = _mm_sub_epi16(_mm_unpacklo_epi8(vb0, vzero), vb_zero_point);

      vacc0x0 = _mm_add_epi32(vacc0x0, _mm_madd_epi16(vxa0, vxb0));

      const __m128i vb1 = _mm_loadl_epi64((const __m128i*) ((const uint8_t*) w + 8));

      const __m128i vxb1 = _mm_sub_epi16(_mm_unpacklo_epi8(vb1, vzero), vb_zero_point);

      vacc0x1 = _mm_add_epi32(vacc0x1, _mm_madd_epi16(vxa0, vxb1));

      const __m128i vb2 = _mm_loadl_epi64((const __m128i*) ((const uint8_t*) w + 16));

      const __m128i vxb2 = _mm_sub_epi16(_mm_unpacklo_epi8(vb2, vzero), vb_zero_point);

      vacc0x2 = _mm_add_epi32(vacc0x2, _mm_madd_epi16(vxa0, vxb2));

      const __m128i vb3 = _mm_loadl_epi64((const __m128i*) ((const uint8_t*) w + 24));

      const __m128i vxb3 = _mm_sub_epi16(_mm_unpacklo_epi8(vb3, vzero), vb_zero_point);

      vacc0x3 = _mm_add_epi32(vacc0x3, _mm_madd_epi16(vxa0, vxb3));

      w = (const uint8_t*) w + 32;

      k -= 8 * sizeof(uint8_t);

    }

    const __m128i vacc0x02 = _mm_add_epi32(_mm_unpacklo_epi32(vacc0x0, vacc0x2), _mm_unpackhi_epi32(vacc0x0, vacc0x2));

    const __m128i vacc0x13 = _mm_add_epi32(_mm_unpacklo_epi32(vacc0x1, vacc0x3), _mm_unpackhi_epi32(vacc0x1, vacc0x3));

    __m128i vacc0x0123 = _mm_add_epi32(_mm_unpacklo_epi32(vacc0x02, vacc0x13), _mm_unpackhi_epi32(vacc0x02, vacc0x13));

    __m128 vscaled0x0123 = _mm_cvtepi32_ps(vacc0x0123);

    vscaled0x0123 = _mm_mul_ps(vscaled0x0123, vscale);

    vscaled0x0123 = _mm_min_ps(vscaled0x0123, voutput_max_less_zero_point);

    vacc0x0123 = _mm_cvtps_epi32(vscaled0x0123);

    __m128i vacc00x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc0x0123), voutput_zero_point);

    __m128i vout = _mm_packus_epi16(vacc00x0123, vacc00x0123);

    vout = _mm_max_epu8(vout, voutput_min);

    if (nc >= 4) {

      unaligned_store_u32(c0, (uint32_t) _mm_cvtsi128_si32(vout));

      c0 = (uint8_t*) ((uintptr_t) c0 + cn_stride);

      a0 = (const uint8_t*) ((uintptr_t) a0 - kc);

      nc -= 4;

    } else {

      if (nc & 2) {

        unaligned_store_u16(c0, (uint16_t) _mm_extract_epi16(vout, 0));

        c0 += 2;

        vout = _mm_srli_epi32(vout, 16);

      }

      if (nc & 1) {

        *c0 = (uint8_t) _mm_cvtsi128_si32(vout);

      }

      nc = 0;

    }

  } while (nc != 0);

}