text: // Auto-generated file. Do not edit!
  //   Template: src/qs8-igemm/MRx8c8-avx2.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 <immintrin.h>
  
  #include <xnnpack/igemm.h>
  #include <xnnpack/intrinsics-polyfill.h>
  #include <xnnpack/math.h>
  
  
  void xnn_qc8_igemm_minmax_fp32_ukernel_1x8c8__avx2(
      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_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
  {
    assert(mr != 0);
    assert(mr <= 1);
    assert(nc != 0);
    assert(kc != 0);
    assert(ks != 0);
    assert(ks % (1 * 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);
    int8_t* c0 = c;
  
    do {
      const __m128i vbias0x0 = _mm_loadu_si32(w);
      const __m128i vbias0x1 = _mm_loadu_si32((const int32_t*) w + 1);
      __m256i vacc0x01 = _mm256_inserti128_si256(_mm256_castsi128_si256(vbias0x0), vbias0x1, 1);
      const __m128i vbias0x2 = _mm_loadu_si32((const int32_t*) w + 2);
      const __m128i vbias0x3 = _mm_loadu_si32((const int32_t*) w + 3);
      __m256i vacc0x23 = _mm256_inserti128_si256(_mm256_castsi128_si256(vbias0x2), vbias0x3, 1);
      const __m128i vbias0x4 = _mm_loadu_si32((const int32_t*) w + 4);
      const __m128i vbias0x5 = _mm_loadu_si32((const int32_t*) w + 5);
      __m256i vacc0x45 = _mm256_inserti128_si256(_mm256_castsi128_si256(vbias0x4), vbias0x5, 1);
      const __m128i vbias0x6 = _mm_loadu_si32((const int32_t*) w + 6);
      const __m128i vbias0x7 = _mm_loadu_si32((const int32_t*) w + 7);
      __m256i vacc0x67 = _mm256_inserti128_si256(_mm256_castsi128_si256(vbias0x6), vbias0x7, 1);
      w = (const void*) ((const int32_t*) w + 8);
  
      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);
        }
        a += 1;
  
        size_t k = 0;
        while (k < kc) {
          const __m128i va0 = _mm_broadcastq_epi64(_mm_loadl_epi64((const __m128i*) a0));
          const __m256i vxa0 = _mm256_cvtepi8_epi16(va0);
          a0 += 8;
  
          const __m128i vb01 = _mm_load_si128((const __m128i*) w);
          const __m256i vxb01 = _mm256_cvtepi8_epi16(vb01);
  
          vacc0x01 = _mm256_add_epi32(vacc0x01, _mm256_madd_epi16(vxa0, vxb01));
          const __m128i vb23 = _mm_load_si128((const __m128i*) ((const int8_t*) w + 16));
          const __m256i vxb23 = _mm256_cvtepi8_epi16(vb23);
  
          vacc0x23 = _mm256_add_epi32(vacc0x23, _mm256_madd_epi16(vxa0, vxb23));
          const __m128i vb45 = _mm_load_si128((const __m128i*) ((const int8_t*) w + 32));
          const __m256i vxb45 = _mm256_cvtepi8_epi16(vb45);
  
          vacc0x45 = _mm256_add_epi32(vacc0x45, _mm256_madd_epi16(vxa0, vxb45));
          const __m128i vb67 = _mm_load_si128((const __m128i*) ((const int8_t*) w + 48));
          const __m256i vxb67 = _mm256_cvtepi8_epi16(vb67);
  
          vacc0x67 = _mm256_add_epi32(vacc0x67, _mm256_madd_epi16(vxa0, vxb67));
  
          w = (const void*) ((const int8_t*) w + 64);
          k += 8 * sizeof(int8_t);
        }
        p -= 1 * sizeof(void*);
      } while (p != 0);
  
      const __m256i vacc0x0213 = _mm256_hadd_epi32(vacc0x01, vacc0x23);
      const __m256i vacc0x4657 = _mm256_hadd_epi32(vacc0x45, vacc0x67);
  
      const __m256i vacc0x02461357 = _mm256_hadd_epi32(vacc0x0213, vacc0x4657);
  
      const __m256i vpermute_mask = _mm256_set_epi32(7, 3, 6, 2, 5, 1, 4, 0);
      __m256i vacc0x01234567 = _mm256_permutevar8x32_epi32(vacc0x02461357, vpermute_mask);
  
      __m256 vscaled0x01234567 = _mm256_cvtepi32_ps(vacc0x01234567);
  
      const __m256 vscale01234567 = _mm256_load_ps(w);
      w = (const void*) ((const float*) w + 8);
      vscaled0x01234567 = _mm256_mul_ps(vscaled0x01234567, vscale01234567);
  
      const __m256 voutput_max_less_zero_point = _mm256_load_ps(params->avx2.output_max_less_zero_point);
      vscaled0x01234567 = _mm256_min_ps(vscaled0x01234567, voutput_max_less_zero_point);
  
      vacc0x01234567 = _mm256_cvtps_epi32(vscaled0x01234567);
  
      const __m256i voutput_zero_point = _mm256_load_si256((const __m256i*) params->avx2.output_zero_point);
      __m256i vacc00x01234567 = _mm256_adds_epi16(_mm256_packs_epi32(vacc0x01234567, vacc0x01234567), voutput_zero_point);
  
      vacc00x01234567 = _mm256_permute4x64_epi64(vacc00x01234567, _MM_SHUFFLE(3, 1, 2, 0));
  
      __m256i vout = _mm256_packs_epi16(vacc00x01234567, vacc00x01234567);
  
      vout = _mm256_max_epi8(vout, _mm256_load_si256((const __m256i*) params->avx2.output_min));
  
      __m128i vout_lo = _mm256_castsi256_si128(vout);
      __m128i vout_hi = _mm256_extracti128_si256(vout, 1);
  
      if (nc >= 8) {
        _mm_storel_epi64((__m128i*) c0, vout_lo);
  
        c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
  
        a = (const int8_t**restrict) ((uintptr_t) a - ks);
  
        nc -= 8;
      } else {
        if (nc & 4) {
          _mm_storeu_si32(c0, vout_lo);
  
          c0 += 4;
  
          vout_lo = _mm_srli_epi64(vout_lo, 32);
          vout_hi = _mm_srli_epi64(vout_hi, 32);
        }
        if (nc & 2) {
          *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout_lo, 0);
  
          c0 += 2;
  
          vout_lo = _mm_srli_epi32(vout_lo, 16);
          vout_hi = _mm_srli_epi32(vout_hi, 16);
        }
        if (nc & 1) {
          *c0 = (int8_t) _mm_extract_epi8(vout_lo, 0);
        }
  
        nc = 0;
      }
    } while (nc != 0);
  }
  