// clang-format off

// Auto-generated file. Do not edit!

//   Template: src/qs8-igemm/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>

#ifdef _MSC_VER

  #include <intrin.h>

#else

  #include <x86intrin.h>

#endif

#include "src/xnnpack/common.h"

#include "src/xnnpack/igemm.h"

#include "src/xnnpack/math.h"

#include "src/xnnpack/microparams.h"

#include "src/xnnpack/unaligned.h"

void xnn_qs8_qc8w_igemm_minmax_fp32_ukernel_2x4c8__avx_ld128(

    size_t mr,

    size_t nc,

    size_t kc,

    size_t ks,

    const int8_t** restrict a,

    const void* restrict w,

    int8_t* restrict c,

    size_t cm_stride,

    size_t cn_stride,

    size_t a_offset,

    const int8_t* zero,

    const union xnn_qs8_qc8w_conv_minmax_params* restrict params) XNN_OOB_READS

{

  assert(mr != 0);

  assert(mr <= 2);

  assert(nc != 0);

  assert(kc != 0);

  assert(ks != 0);

  assert(ks % (2 * sizeof(void*)) == 0);

  assert(a_offset % sizeof(int8_t) == 0);

  assert(a != NULL);

  assert(w != NULL);

  assert(c != NULL);

  kc = round_up_po2(kc, 8 * sizeof(int8_t));

  int8_t* c0 = c;

  int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);

  if XNN_UNPREDICTABLE(mr != 2) {

    c1 = c0;

  }

  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);

  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]);

    __m128i vacc1x0 = vacc0x0;

    __m128i vacc1x1 = vacc0x1;

    __m128i vacc1x2 = vacc0x2;

    __m128i vacc1x3 = vacc0x3;

    w = (const int32_t*) w + 4;

    size_t p = ks;

    do {

      const int8_t* restrict a0 = a[0];

      if XNN_UNPREDICTABLE(a0 != zero) {

        a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);

      }

      const int8_t* restrict a1 = a[1];

      if XNN_UNPREDICTABLE(a1 != zero) {

        a1 = (const int8_t*) ((uintptr_t) a1 + a_offset);

      }

      a += 2;

      size_t k = 0;

      while (k < kc) {

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

        const __m128i vxa0 = _mm_cvtepi8_epi16(va0);

        a0 += 8;

        const __m128i va1 = _mm_loadl_epi64((const __m128i*) a1);

        const __m128i vxa1 = _mm_cvtepi8_epi16(va1);

        a1 += 8;

        const __m128i vb01 = _mm_load_si128((const __m128i*) w);

        const __m128i vxb0 = _mm_cvtepi8_epi16(vb01);

        const __m128i vxb1 = _mm_srai_epi16(_mm_unpackhi_epi8(vb01, vb01), 8);

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

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

        vacc1x0 = _mm_add_epi32(vacc1x0, _mm_madd_epi16(vxa1, vxb0));

        vacc1x1 = _mm_add_epi32(vacc1x1, _mm_madd_epi16(vxa1, vxb1));

        const __m128i vb23 = _mm_load_si128((const __m128i*) ((const int8_t*) w + 16));

        const __m128i vxb2 = _mm_cvtepi8_epi16(vb23);

        const __m128i vxb3 = _mm_srai_epi16(_mm_unpackhi_epi8(vb23, vb23), 8);

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

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

        vacc1x2 = _mm_add_epi32(vacc1x2, _mm_madd_epi16(vxa1, vxb2));

        vacc1x3 = _mm_add_epi32(vacc1x3, _mm_madd_epi16(vxa1, vxb3));

        w = (const void*) ((const int8_t*) w + 32);

        k += 8 * sizeof(int8_t);

      }

      p -= 2 * sizeof(void*);

    } while (p != 0);

    const __m128i vacc0x01 = _mm_hadd_epi32(vacc0x0, vacc0x1);

    const __m128i vacc0x23 = _mm_hadd_epi32(vacc0x2, vacc0x3);

    const __m128i vacc1x01 = _mm_hadd_epi32(vacc1x0, vacc1x1);

    const __m128i vacc1x23 = _mm_hadd_epi32(vacc1x2, vacc1x3);

    __m128i vacc0x0123 = _mm_hadd_epi32(vacc0x01, vacc0x23);

    __m128i vacc1x0123 = _mm_hadd_epi32(vacc1x01, vacc1x23);

    __m128 vscaled0x0123 = _mm_cvtepi32_ps(vacc0x0123);

    __m128 vscaled1x0123 = _mm_cvtepi32_ps(vacc1x0123);

    const __m128 vscale0123 = _mm_load_ps((const float*) w);

    w = (const float*) w + 4;

    vscaled0x0123 = _mm_mul_ps(vscaled0x0123, vscale0123);

    vscaled1x0123 = _mm_mul_ps(vscaled1x0123, vscale0123);

    vscaled0x0123 = _mm_min_ps(vscaled0x0123, voutput_max_less_zero_point);

    vscaled1x0123 = _mm_min_ps(vscaled1x0123, voutput_max_less_zero_point);

    vacc0x0123 = _mm_cvtps_epi32(vscaled0x0123);

    vacc1x0123 = _mm_cvtps_epi32(vscaled1x0123);

    __m128i vacc01x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc1x0123), voutput_zero_point);

    __m128i vout = _mm_packs_epi16(vacc01x0123, vacc01x0123);

    vout = _mm_max_epi8(vout, voutput_min);

    if (nc >= 4) {

      unaligned_store_u32(c1, (uint32_t) _mm_extract_epi32(vout, 1));

      c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);

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

      c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);

      a = (const int8_t**restrict) ((uintptr_t) a - ks);

      nc -= 4;

    } else {

      if (nc & 2) {

        unaligned_store_u16(c1, (uint16_t) _mm_extract_epi16(vout, 2));

        c1 += 2;

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

        c0 += 2;

        vout = _mm_srli_epi32(vout, 16);

      }

      if (nc & 1) {

        *c1 = (int8_t) _mm_extract_epi8(vout, 4);

        *c0 = (int8_t) _mm_extract_epi8(vout, 0);

      }

      nc = 0;

    }

  } while (nc != 0);

}