text: // Auto-generated file. Do not edit!
  //   Template: src/qs8-gemm/MRx4c2-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 <smmintrin.h>
  
  #include <xnnpack/gemm.h>
  #include <xnnpack/math.h>
  
  
  void xnn_qs8_gemm_minmax_ukernel_3x4c2__avx_ld128(
      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_gemm_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
  {
    assert(mr != 0);
    assert(mr <= 3);
    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, 2);
    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;
    }
    const int8_t* a2 = (const int8_t*) ((uintptr_t) a1 + a_stride);
    int8_t* c2 = (int8_t*) ((uintptr_t) c1 + cm_stride);
    if XNN_UNPREDICTABLE(mr <= 2) {
      a2 = a1;
      c2 = c1;
    }
  
    do {
      __m128i vacc0x0123 = _mm_loadu_si128((const __m128i*) w);
      __m128i vacc1x0123 = vacc0x0123;
      __m128i vacc2x0123 = vacc0x0123;
      w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
  
      size_t k = kc;
      while (k >= 8 * sizeof(int8_t)) {
        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 va2 = _mm_loadl_epi64((const __m128i*) a2);
        const __m128i vxa2 = _mm_cvtepi8_epi16(va2);
        a2 += 8;
  
        const __m128i vb01 = _mm_loadu_si128((const __m128i*) w);
        const __m128i vsb01 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb01);
        const __m128i vxb0 = _mm_unpacklo_epi8(vb01, vsb01);
        const __m128i vxb1 = _mm_unpackhi_epi8(vb01, vsb01);
  
        vacc0x0123 = _mm_add_epi32(vacc0x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
        vacc1x0123 = _mm_add_epi32(vacc1x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
        vacc2x0123 = _mm_add_epi32(vacc2x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
  
        vacc0x0123 = _mm_add_epi32(vacc0x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
        vacc1x0123 = _mm_add_epi32(vacc1x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
        vacc2x0123 = _mm_add_epi32(vacc2x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
        const __m128i vb23 = _mm_loadu_si128((const __m128i*) ((uintptr_t) w + 16 * sizeof(int8_t)));
        const __m128i vsb23 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb23);
        const __m128i vxb2 = _mm_unpacklo_epi8(vb23, vsb23);
        const __m128i vxb3 = _mm_unpackhi_epi8(vb23, vsb23);
  
        vacc0x0123 = _mm_add_epi32(vacc0x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
        vacc1x0123 = _mm_add_epi32(vacc1x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
        vacc2x0123 = _mm_add_epi32(vacc2x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
  
        vacc0x0123 = _mm_add_epi32(vacc0x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
        vacc1x0123 = _mm_add_epi32(vacc1x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
        vacc2x0123 = _mm_add_epi32(vacc2x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
  
        w = (const void*) ((uintptr_t) w + 32 * sizeof(int8_t));
        k -= 8 * sizeof(int8_t);
      }
      if (k != 0) {
        const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
        const __m128i vxa0 = _mm_cvtepi8_epi16(va0);
        a0 = (const int8_t*) ((uintptr_t) a0 + k);
        const __m128i va1 = _mm_loadl_epi64((const __m128i*) a1);
        const __m128i vxa1 = _mm_cvtepi8_epi16(va1);
        a1 = (const int8_t*) ((uintptr_t) a1 + k);
        const __m128i va2 = _mm_loadl_epi64((const __m128i*) a2);
        const __m128i vxa2 = _mm_cvtepi8_epi16(va2);
        a2 = (const int8_t*) ((uintptr_t) a2 + k);
  
        const __m128i vb0 = _mm_loadl_epi64((const __m128i*) w);
        const __m128i vxb0 = _mm_cvtepi8_epi16(vb0);
        w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
  
        vacc0x0123 = _mm_add_epi32(vacc0x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
        vacc1x0123 = _mm_add_epi32(vacc1x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
        vacc2x0123 = _mm_add_epi32(vacc2x0123,
          _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
  
        if (k > 2 * sizeof(int8_t)) {
          const __m128i vb1 = _mm_loadl_epi64((const __m128i*) w);
          const __m128i vxb1 = _mm_cvtepi8_epi16(vb1);
          w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
  
          vacc0x0123 = _mm_add_epi32(vacc0x0123,
            _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
          vacc1x0123 = _mm_add_epi32(vacc1x0123,
            _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
          vacc2x0123 = _mm_add_epi32(vacc2x0123,
            _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
  
          if (k > 4 * sizeof(int8_t)) {
            const __m128i vb2 = _mm_loadl_epi64((const __m128i*) w);
            const __m128i vxb2 = _mm_cvtepi8_epi16(vb2);
            w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
  
            vacc0x0123 = _mm_add_epi32(vacc0x0123,
              _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
            vacc1x0123 = _mm_add_epi32(vacc1x0123,
              _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
            vacc2x0123 = _mm_add_epi32(vacc2x0123,
              _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
          }
        }
      }
  
      const __m128i vmultiplier = _mm_load_si128((const __m128i*) params->sse2.multiplier);
      const __m128i vrounding = _mm_load_si128((const __m128i*) params->sse2.rounding);
  
      const __m128i vacc0x1133 = _mm_shuffle_epi32(vacc0x0123, _MM_SHUFFLE(3, 3, 1, 1));
      const __m128i vacc1x1133 = _mm_shuffle_epi32(vacc1x0123, _MM_SHUFFLE(3, 3, 1, 1));
      const __m128i vacc2x1133 = _mm_shuffle_epi32(vacc2x0123, _MM_SHUFFLE(3, 3, 1, 1));
  
      const __m128i vprod0x02 = _mm_add_epi64(_mm_mul_epi32(vacc0x0123, vmultiplier), vrounding);
      const __m128i vprod1x02 = _mm_add_epi64(_mm_mul_epi32(vacc1x0123, vmultiplier), vrounding);
      const __m128i vprod2x02 = _mm_add_epi64(_mm_mul_epi32(vacc2x0123, vmultiplier), vrounding);
  
      const __m128i vprod0x13 = _mm_add_epi64(_mm_mul_epi32(vacc0x1133, vmultiplier), vrounding);
      const __m128i vprod1x13 = _mm_add_epi64(_mm_mul_epi32(vacc1x1133, vmultiplier), vrounding);
      const __m128i vprod2x13 = _mm_add_epi64(_mm_mul_epi32(vacc2x1133, vmultiplier), vrounding);
  
      const __m128i vq31prod0x02 = _mm_srli_epi64(vprod0x02, 31);
      const __m128i vq31prod0x13 = _mm_add_epi64(vprod0x13, vprod0x13);
      const __m128i vq31prod1x02 = _mm_srli_epi64(vprod1x02, 31);
      const __m128i vq31prod1x13 = _mm_add_epi64(vprod1x13, vprod1x13);
      const __m128i vq31prod2x02 = _mm_srli_epi64(vprod2x02, 31);
      const __m128i vq31prod2x13 = _mm_add_epi64(vprod2x13, vprod2x13);
  
      const __m128i vq31prod0x0123 = _mm_blend_epi16(vq31prod0x02, vq31prod0x13, 0xCC);
      const __m128i vq31prod1x0123 = _mm_blend_epi16(vq31prod1x02, vq31prod1x13, 0xCC);
      const __m128i vq31prod2x0123 = _mm_blend_epi16(vq31prod2x02, vq31prod2x13, 0xCC);
  
      const __m128i vremainder_mask = _mm_load_si128((const __m128i*) params->sse2.remainder_mask);
      const __m128i vrem0x0123 =
        _mm_add_epi32(_mm_and_si128(vq31prod0x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod0x0123));
      const __m128i vrem1x0123 =
        _mm_add_epi32(_mm_and_si128(vq31prod1x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod1x0123));
      const __m128i vrem2x0123 =
        _mm_add_epi32(_mm_and_si128(vq31prod2x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod2x0123));
  
      const __m128i vremainder_threshold = _mm_load_si128((const __m128i*) params->sse2.remainder_threshold);
      const __m128i vshift = _mm_load_si128((const __m128i*) params->sse2.shift);
      vacc0x0123 =
        _mm_sub_epi32(_mm_sra_epi32(vq31prod0x0123, vshift), _mm_cmpgt_epi32(vrem0x0123, vremainder_threshold));
      vacc1x0123 =
        _mm_sub_epi32(_mm_sra_epi32(vq31prod1x0123, vshift), _mm_cmpgt_epi32(vrem1x0123, vremainder_threshold));
      vacc2x0123 =
        _mm_sub_epi32(_mm_sra_epi32(vq31prod2x0123, vshift), _mm_cmpgt_epi32(vrem2x0123, vremainder_threshold));
  
      const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point);
      __m128i vacc01x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc1x0123), voutput_zero_point);
      __m128i vacc22x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc2x0123, vacc2x0123), voutput_zero_point);
  
      const __m128i voutput_min = _mm_load_si128((const __m128i*) params->sse2.output_min);
      const __m128i voutput_max = _mm_load_si128((const __m128i*) params->sse2.output_max);
      vacc01x0123 = _mm_min_epi16(_mm_max_epi16(vacc01x0123, voutput_min), voutput_max);
      vacc22x0123 = _mm_min_epi16(_mm_max_epi16(vacc22x0123, voutput_min), voutput_max);
  
      __m128i vout = _mm_packs_epi16(vacc01x0123, vacc22x0123);
  
      if (nc >= 4) {
        *((uint32_t*) c0) = (uint32_t) _mm_cvtsi128_si32(vout);
        *((uint32_t*) c1) = (uint32_t) _mm_extract_epi32(vout, 1);
        *((uint32_t*) c2) = (uint32_t) _mm_extract_epi32(vout, 2);
  
        c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
        c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
        c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
  
        a0 = (const int8_t*) ((uintptr_t) a0 - kc);
        a1 = (const int8_t*) ((uintptr_t) a1 - kc);
        a2 = (const int8_t*) ((uintptr_t) a2 - 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;
          *((uint16_t*) c2) = (uint16_t) _mm_extract_epi16(vout, 4);
          c2 += 2;
          vout = _mm_srli_epi32(vout, 16);
        }
        if (nc & 1) {
          *((int8_t*) c0) = (int8_t) _mm_extract_epi8(vout, 0);
          *((int8_t*) c1) = (int8_t) _mm_extract_epi8(vout, 4);
          *((int8_t*) c2) = (int8_t) _mm_extract_epi8(vout, 8);
        }
  
        nc = 0;
      }
    } while (nc != 0);
  }
  