text: // Auto-generated file. Do not edit!
  //   Template: src/qs8-gemm/MRx4c2s4-sse.c.in
  //   Generator: tools/xngen
  //
  // Copyright 2022 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>
  
  #if defined(__GNUC__) || defined(__clang__)
    #include <x86intrin.h>
  #else
    #include <immintrin.h>
    #include <ammintrin.h>
  #endif
  
  #include <xnnpack/gemm.h>
  #include <xnnpack/math.h>
  
  
  
  void xnn_qs8_gemm_xw_minmax_fp32_ukernel_2x4c2s4__xop(
      size_t mr,
      size_t nc,
      size_t kc,
      const int8_t* restrict a,
      size_t a_stride,
      const void* restrict w,
      int8_t* restrict c,
      size_t cm_stride,
      size_t cn_stride,
      const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
  {
    assert(mr != 0);
    assert(mr <= 2);
    assert(nc != 0);
    assert(kc != 0);
    assert(kc % sizeof(int8_t) == 0);
    assert(a != NULL);
    assert(w != NULL);
    assert(c != NULL);
  
    kc = round_up_po2(kc, 8 * sizeof(int8_t));
    const int8_t* a0 = a;
    int8_t* c0 = c;
    const int8_t* a1 = (const int8_t*) ((uintptr_t) a0 + a_stride);
    int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
    if XNN_UNPREDICTABLE(mr != 2) {
      a1 = a0;
      c1 = c0;
    }
  
    do {
      __m128i vacc0x0123 = _mm_loadu_si128((const __m128i*) w);
      __m128i vacc1x0123 = vacc0x0123;
      w = (const void*) ((const int32_t*) w + 4);
  
      size_t k = kc;
      do {
        const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
        __m128i vxa0 = _mm_cvtepi8_epi16(va0);
        a0 += 8;
        const __m128i va1 = _mm_loadl_epi64((const __m128i*) a1);
        __m128i vxa1 = _mm_cvtepi8_epi16(va1);
        a1 += 8;
  
        const __m128i vxb0 = _mm_load_si128((const __m128i*) w);
  
        vacc0x0123 = _mm_maddd_epi16(vxa0, vxb0, vacc0x0123);
        vxa0 = _mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 3, 2, 1));
        vacc1x0123 = _mm_maddd_epi16(vxa1, vxb0, vacc1x0123);
        vxa1 = _mm_shuffle_epi32(vxa1, _MM_SHUFFLE(0, 3, 2, 1));
        const __m128i vxb1 = _mm_load_si128((const __m128i*) ((const int16_t*) w + 8));
  
        vacc0x0123 = _mm_maddd_epi16(vxa0, vxb1, vacc0x0123);
        vxa0 = _mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 3, 2, 1));
        vacc1x0123 = _mm_maddd_epi16(vxa1, vxb1, vacc1x0123);
        vxa1 = _mm_shuffle_epi32(vxa1, _MM_SHUFFLE(0, 3, 2, 1));
        const __m128i vxb2 = _mm_load_si128((const __m128i*) ((const int16_t*) w + 16));
  
        vacc0x0123 = _mm_maddd_epi16(vxa0, vxb2, vacc0x0123);
        vxa0 = _mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 3, 2, 1));
        vacc1x0123 = _mm_maddd_epi16(vxa1, vxb2, vacc1x0123);
        vxa1 = _mm_shuffle_epi32(vxa1, _MM_SHUFFLE(0, 3, 2, 1));
        const __m128i vxb3 = _mm_load_si128((const __m128i*) ((const int16_t*) w + 24));
  
        vacc0x0123 = _mm_maddd_epi16(vxa0, vxb3, vacc0x0123);
        vacc1x0123 = _mm_maddd_epi16(vxa1, vxb3, vacc1x0123);
  
        w = (const void*) ((const int16_t*) w + 32);
        k -= 8 * sizeof(int8_t);
      } while (k != 0);
  
      __m128 vscaled0x0123 = _mm_cvtepi32_ps(vacc0x0123);
      __m128 vscaled1x0123 = _mm_cvtepi32_ps(vacc1x0123);
  
      const __m128 vscale = _mm_load_ps(params->fp32_sse4.scale);
      vscaled0x0123 = _mm_mul_ps(vscaled0x0123, vscale);
      vscaled1x0123 = _mm_mul_ps(vscaled1x0123, vscale);
  
      const __m128 voutput_max_less_zero_point = _mm_load_ps(params->fp32_sse4.output_max_less_zero_point);
      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);
  
      const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->fp32_sse4.output_zero_point);
      __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, _mm_load_si128((const __m128i*) params->fp32_sse4.output_min));
  
      if (nc >= 4) {
        *((uint32_t*) c0) = (uint32_t) _mm_cvtsi128_si32(vout);
        *((uint32_t*) c1) = (uint32_t) _mm_extract_epi32(vout, 1);
  
        c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
        c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
  
        a0 = (const int8_t*) ((uintptr_t) a0 - kc);
        a1 = (const int8_t*) ((uintptr_t) a1 - kc);
  
        nc -= 4;
      } else {
        if (nc & 2) {
          *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout, 0);
          c0 += 2;
          *((uint16_t*) c1) = (uint16_t) _mm_extract_epi16(vout, 2);
          c1 += 2;
          vout = _mm_srli_epi32(vout, 16);
        }
        if (nc & 1) {
          *c0 = (int8_t) _mm_extract_epi8(vout, 0);
          *c1 = (int8_t) _mm_extract_epi8(vout, 4);
        }
  
        nc = 0;
      }
    } while (nc != 0);
  }
  