text: // Auto-generated file. Do not edit!
  //   Template: src/qs8-igemm/MRx16c8-avx512skx.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_qu8_igemm_minmax_fp32_ukernel_3x16c8__avx512skx(
      size_t mr,
      size_t nc,
      size_t kc,
      size_t ks,
      const uint8_t** restrict a,
      const void* restrict w,
      uint8_t* restrict c,
      size_t cm_stride,
      size_t cn_stride,
      size_t a_offset,
      const uint8_t* zero,
      const union xnn_qu8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN XNN_DISABLE_MSAN
  {
    assert(mr != 0);
    assert(mr <= 3);
    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);
    uint8_t* c0 = c;
    uint8_t* c1 = (uint8_t*) ((uintptr_t) c0 + cm_stride);
    if XNN_UNPREDICTABLE(mr < 2) {
      c1 = c0;
    }
    uint8_t* c2 = (uint8_t*) ((uintptr_t) c1 + cm_stride);
    if XNN_UNPREDICTABLE(mr <= 2) {
      c2 = c1;
    }
  
    const __mmask16 vbias_mask = _cvtu32_mask16(0x1111);
    const __m512 vscale = _mm512_load_ps(params->fp32_avx512.scale);
    const __m512i voutput_zero_point = _mm512_load_si512(params->fp32_avx512.output_zero_point);
    const __m512i voutput_min = _mm512_load_si512(params->fp32_avx512.output_min);
    const __m512i voutput_max = _mm512_load_si512(params->fp32_avx512.output_max);
    do {
      __m512i vacc0x0123 = _mm512_maskz_expandloadu_epi32(vbias_mask, w);
      __m512i vacc0x4567 = _mm512_maskz_expandloadu_epi32(vbias_mask, (const void*) ((const int32_t*) w + 4));
      __m512i vacc0x89AB = _mm512_maskz_expandloadu_epi32(vbias_mask, (const void*) ((const int32_t*) w + 8));
      __m512i vacc0xCDEF = _mm512_maskz_expandloadu_epi32(vbias_mask, (const void*) ((const int32_t*) w + 12));
      __m512i vacc1x0123 = vacc0x0123;
      __m512i vacc1x4567 = vacc0x4567;
      __m512i vacc1x89AB = vacc0x89AB;
      __m512i vacc1xCDEF = vacc0xCDEF;
      __m512i vacc2x0123 = vacc0x0123;
      __m512i vacc2x4567 = vacc0x4567;
      __m512i vacc2x89AB = vacc0x89AB;
      __m512i vacc2xCDEF = vacc0xCDEF;
      w = (const void*) ((const int32_t*) w + 16);
  
      size_t p = ks;
      do {
        const uint8_t* restrict a0 = a[0];
        if XNN_UNPREDICTABLE(a0 != zero) {
          a0 = (const uint8_t*) ((uintptr_t) a0 + a_offset);
        }
        const uint8_t* restrict a1 = a[1];
        if XNN_UNPREDICTABLE(a1 != zero) {
          a1 = (const uint8_t*) ((uintptr_t) a1 + a_offset);
        }
        const uint8_t* restrict a2 = a[2];
        if XNN_UNPREDICTABLE(a2 != zero) {
          a2 = (const uint8_t*) ((uintptr_t) a2 + a_offset);
        }
        a += 3;
  
        size_t k = 0;
        const __m512i vb_zero_point = _mm512_load_si512(params->fp32_avx512.kernel_zero_point);
        while (k < kc) {
          const __m512i va0 = _mm512_broadcast_i32x4(_mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) a0)));
          a0 += 8;
          const __m512i va1 = _mm512_broadcast_i32x4(_mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) a1)));
          a1 += 8;
          const __m512i va2 = _mm512_broadcast_i32x4(_mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) a2)));
          a2 += 8;
  
          const __m512i vb0123 = _mm512_sub_epi16(_mm512_cvtepu8_epi16(_mm256_load_si256((const __m256i*) w)), vb_zero_point);
  
          vacc0x0123 = _mm512_add_epi32(vacc0x0123, _mm512_madd_epi16(va0, vb0123));
          vacc1x0123 = _mm512_add_epi32(vacc1x0123, _mm512_madd_epi16(va1, vb0123));
          vacc2x0123 = _mm512_add_epi32(vacc2x0123, _mm512_madd_epi16(va2, vb0123));
          const __m512i vb4567 = _mm512_sub_epi16(_mm512_cvtepu8_epi16(_mm256_load_si256((const __m256i*) ((const uint8_t*) w + 32))), vb_zero_point);
  
          vacc0x4567 = _mm512_add_epi32(vacc0x4567, _mm512_madd_epi16(va0, vb4567));
          vacc1x4567 = _mm512_add_epi32(vacc1x4567, _mm512_madd_epi16(va1, vb4567));
          vacc2x4567 = _mm512_add_epi32(vacc2x4567, _mm512_madd_epi16(va2, vb4567));
          const __m512i vb89AB = _mm512_sub_epi16(_mm512_cvtepu8_epi16(_mm256_load_si256((const __m256i*) ((const uint8_t*) w + 64))), vb_zero_point);
  
          vacc0x89AB = _mm512_add_epi32(vacc0x89AB, _mm512_madd_epi16(va0, vb89AB));
          vacc1x89AB = _mm512_add_epi32(vacc1x89AB, _mm512_madd_epi16(va1, vb89AB));
          vacc2x89AB = _mm512_add_epi32(vacc2x89AB, _mm512_madd_epi16(va2, vb89AB));
          const __m512i vbCDEF = _mm512_sub_epi16(_mm512_cvtepu8_epi16(_mm256_load_si256((const __m256i*) ((const uint8_t*) w + 96))), vb_zero_point);
  
          vacc0xCDEF = _mm512_add_epi32(vacc0xCDEF, _mm512_madd_epi16(va0, vbCDEF));
          vacc1xCDEF = _mm512_add_epi32(vacc1xCDEF, _mm512_madd_epi16(va1, vbCDEF));
          vacc2xCDEF = _mm512_add_epi32(vacc2xCDEF, _mm512_madd_epi16(va2, vbCDEF));
  
          w = (const void*) ((const uint8_t*) w + 128);
          k += 8 * sizeof(uint8_t);
        }
        p -= 3 * sizeof(void*);
      } while (p != 0);
  
      const __m512i vacc0x04152637 = _mm512_add_epi32(_mm512_unpacklo_epi32(vacc0x0123, vacc0x4567), _mm512_unpackhi_epi32(vacc0x0123, vacc0x4567));
      const __m512i vacc0x8C9DAEBF = _mm512_add_epi32(_mm512_unpacklo_epi32(vacc0x89AB, vacc0xCDEF), _mm512_unpackhi_epi32(vacc0x89AB, vacc0xCDEF));
      const __m512i vacc1x04152637 = _mm512_add_epi32(_mm512_unpacklo_epi32(vacc1x0123, vacc1x4567), _mm512_unpackhi_epi32(vacc1x0123, vacc1x4567));
      const __m512i vacc1x8C9DAEBF = _mm512_add_epi32(_mm512_unpacklo_epi32(vacc1x89AB, vacc1xCDEF), _mm512_unpackhi_epi32(vacc1x89AB, vacc1xCDEF));
      const __m512i vacc2x04152637 = _mm512_add_epi32(_mm512_unpacklo_epi32(vacc2x0123, vacc2x4567), _mm512_unpackhi_epi32(vacc2x0123, vacc2x4567));
      const __m512i vacc2x8C9DAEBF = _mm512_add_epi32(_mm512_unpacklo_epi32(vacc2x89AB, vacc2xCDEF), _mm512_unpackhi_epi32(vacc2x89AB, vacc2xCDEF));
  
      __m512i vacc0x084C195D2A6E3B7F = _mm512_add_epi32(_mm512_unpacklo_epi32(vacc0x04152637, vacc0x8C9DAEBF), _mm512_unpackhi_epi32(vacc0x04152637, vacc0x8C9DAEBF));
      __m512i vacc1x084C195D2A6E3B7F = _mm512_add_epi32(_mm512_unpacklo_epi32(vacc1x04152637, vacc1x8C9DAEBF), _mm512_unpackhi_epi32(vacc1x04152637, vacc1x8C9DAEBF));
      __m512i vacc2x084C195D2A6E3B7F = _mm512_add_epi32(_mm512_unpacklo_epi32(vacc2x04152637, vacc2x8C9DAEBF), _mm512_unpackhi_epi32(vacc2x04152637, vacc2x8C9DAEBF));
  
      __m512 vscaled0x084C195D2A6E3B7F = _mm512_cvtepi32_ps(vacc0x084C195D2A6E3B7F);
      __m512 vscaled1x084C195D2A6E3B7F = _mm512_cvtepi32_ps(vacc1x084C195D2A6E3B7F);
      __m512 vscaled2x084C195D2A6E3B7F = _mm512_cvtepi32_ps(vacc2x084C195D2A6E3B7F);
  
      vscaled0x084C195D2A6E3B7F = _mm512_mul_ps(vscaled0x084C195D2A6E3B7F, vscale);
      vscaled1x084C195D2A6E3B7F = _mm512_mul_ps(vscaled1x084C195D2A6E3B7F, vscale);
      vscaled2x084C195D2A6E3B7F = _mm512_mul_ps(vscaled2x084C195D2A6E3B7F, vscale);
  
      vacc0x084C195D2A6E3B7F = _mm512_cvtps_epi32(vscaled0x084C195D2A6E3B7F);
      vacc1x084C195D2A6E3B7F = _mm512_cvtps_epi32(vscaled1x084C195D2A6E3B7F);
      vacc2x084C195D2A6E3B7F = _mm512_cvtps_epi32(vscaled2x084C195D2A6E3B7F);
  
      const __m512i vacc01x084Cx195Dx2A6Ex3B7F = _mm512_adds_epi16(_mm512_packs_epi32(vacc0x084C195D2A6E3B7F, vacc1x084C195D2A6E3B7F), voutput_zero_point);
      const __m512i vacc22x084Cx195Dx2A6Ex3B7F = _mm512_adds_epi16(_mm512_packs_epi32(vacc2x084C195D2A6E3B7F, vacc2x084C195D2A6E3B7F), voutput_zero_point);
  
      __m512i vout0122x084Cx195Dx2A6Ex3B7F = _mm512_packus_epi16(vacc01x084Cx195Dx2A6Ex3B7F, vacc22x084Cx195Dx2A6Ex3B7F);
      vout0122x084Cx195Dx2A6Ex3B7F = _mm512_permutexvar_epi32(_mm512_set_epi32(15, 11, 7, 3, 14, 10, 6, 2, 13, 9, 5, 1, 12, 8, 4, 0), vout0122x084Cx195Dx2A6Ex3B7F);
      __m512i vout0122x0123456789ABCDEF = _mm512_shuffle_epi8(vout0122x084Cx195Dx2A6Ex3B7F, _mm512_set_epi8(15, 11, 7, 3, 13, 9, 5, 1, 14, 10, 6, 2, 12, 8, 4, 0, 15, 11, 7, 3, 13, 9, 5, 1, 14, 10, 6, 2, 12, 8, 4, 0, 15, 11, 7, 3, 13, 9, 5, 1, 14, 10, 6, 2, 12, 8, 4, 0, 15, 11, 7, 3, 13, 9, 5, 1, 14, 10, 6, 2, 12, 8, 4, 0));
      vout0122x0123456789ABCDEF = _mm512_max_epu8(vout0122x0123456789ABCDEF, voutput_min);
      vout0122x0123456789ABCDEF = _mm512_min_epu8(vout0122x0123456789ABCDEF, voutput_max);
  
      if (nc >= 16) {
        _mm_storeu_si128((__m128i*) c2, _mm512_extracti32x4_epi32(vout0122x0123456789ABCDEF, 2));
        _mm_storeu_si128((__m128i*) c1, _mm512_extracti32x4_epi32(vout0122x0123456789ABCDEF, 1));
        _mm_storeu_si128((__m128i*) c0, _mm512_castsi512_si128(vout0122x0123456789ABCDEF));
  
        c2 = (uint8_t*) ((uintptr_t) c2 + cn_stride);
        c1 = (uint8_t*) ((uintptr_t) c1 + cn_stride);
        c0 = (uint8_t*) ((uintptr_t) c0 + cn_stride);
  
        a = (const uint8_t**restrict) ((uintptr_t) a - ks);
  
        nc -= 16;
      } else {
        // Prepare mask for valid 8-bit elements (depends on nc).
        __mmask64 vmask = _cvtu64_mask64((uint64_t) ((UINT64_C(1) << (nc + 32)) - (UINT64_C(1) << 32)));
  
        _mm512_mask_storeu_epi8(c2 - 32, vmask, vout0122x0123456789ABCDEF);
        vmask = _kshiftri_mask64(vmask, 16);
        _mm512_mask_storeu_epi8(c1 - 16, vmask, vout0122x0123456789ABCDEF);
        vmask = _kshiftri_mask64(vmask, 16);
        _mm512_mask_storeu_epi8(c0, vmask, vout0122x0123456789ABCDEF);
  
        nc = 0;
      }
    } while (nc != 0);
  }
  