text: // Auto-generated file. Do not edit!
  //   Template: src/qs8-igemm/scalar.c.in
  //   Generator: tools/xngen
  //
  // Copyright 2021 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 <fp16.h>
  
  #include <xnnpack/math.h>
  #include <xnnpack/gemm.h>
  
  
  void xnn_qc8_igemm_minmax_fp32_ukernel_2x4__scalar_magic(
      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)])
  {
    assert(mr != 0);
    assert(mr <= 2);
    assert(nc != 0);
    assert(kc != 0);
    assert(ks != 0);
    assert(ks % (2 * sizeof(void*)) == 0);
    assert(a != NULL);
    assert(w != NULL);
    assert(c != NULL);
  
    int8_t* c0 = c;
    int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
    if XNN_UNPREDICTABLE(mr != 2) {
      c1 = c0;
    }
  
    do {
      int32_t vacc0x0 = ((const int32_t*) w)[0];
      int32_t vacc0x1 = ((const int32_t*) w)[1];
      int32_t vacc0x2 = ((const int32_t*) w)[2];
      int32_t vacc0x3 = ((const int32_t*) w)[3];
      int32_t vacc1x0 = vacc0x0;
      int32_t vacc1x1 = vacc0x1;
      int32_t vacc1x2 = vacc0x2;
      int32_t vacc1x3 = vacc0x3;
      w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
  
      size_t p = ks;
      do {
        const int8_t* restrict a0 = a[0];
        assert(a0 != NULL);
        if XNN_UNPREDICTABLE(a0 != zero) {
          a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
        }
        const int8_t* restrict a1 = a[1];
        assert(a1 != NULL);
        if XNN_UNPREDICTABLE(a1 != zero) {
          a1 = (const int8_t*) ((uintptr_t) a1 + a_offset);
        }
        a += 2;
  
        size_t k = kc;
        do {
          const int32_t va0 = (int32_t) *a0++;
          const int32_t va1 = (int32_t) *a1++;
  
          const int32_t vb0 = ((const int8_t*) w)[0];
          const int32_t vb1 = ((const int8_t*) w)[1];
          const int32_t vb2 = ((const int8_t*) w)[2];
          const int32_t vb3 = ((const int8_t*) w)[3];
          w = (const void*) ((uintptr_t) w + 4 * sizeof(int8_t));
  
          vacc0x0 += va0 * vb0;
          vacc0x1 += va0 * vb1;
          vacc0x2 += va0 * vb2;
          vacc0x3 += va0 * vb3;
          vacc1x0 += va1 * vb0;
          vacc1x1 += va1 * vb1;
          vacc1x2 += va1 * vb2;
          vacc1x3 += va1 * vb3;
  
          k -= sizeof(int8_t);
        } while (k != 0);
        p -= 2 * sizeof(void*);
      } while (p != 0);
  
      float vfpacc0x0 = (float) vacc0x0;
      float vfpacc0x1 = (float) vacc0x1;
      float vfpacc0x2 = (float) vacc0x2;
      float vfpacc0x3 = (float) vacc0x3;
      float vfpacc1x0 = (float) vacc1x0;
      float vfpacc1x1 = (float) vacc1x1;
      float vfpacc1x2 = (float) vacc1x2;
      float vfpacc1x3 = (float) vacc1x3;
  
      const float vscale0 = ((const float*) w)[0];
      vfpacc0x0 *= vscale0;
      vfpacc1x0 *= vscale0;
      const float vscale1 = ((const float*) w)[1];
      vfpacc0x1 *= vscale1;
      vfpacc1x1 *= vscale1;
      const float vscale2 = ((const float*) w)[2];
      vfpacc0x2 *= vscale2;
      vfpacc1x2 *= vscale2;
      const float vscale3 = ((const float*) w)[3];
      vfpacc0x3 *= vscale3;
      vfpacc1x3 *= vscale3;
      w = (const void*) ((const float*) w + 4);
  
      const float voutput_min_less_zero_point = params->scalar_magic.output_min_less_zero_point;
      vfpacc0x0 = math_max_f32(vfpacc0x0, voutput_min_less_zero_point);
      vfpacc0x1 = math_max_f32(vfpacc0x1, voutput_min_less_zero_point);
      vfpacc0x2 = math_max_f32(vfpacc0x2, voutput_min_less_zero_point);
      vfpacc0x3 = math_max_f32(vfpacc0x3, voutput_min_less_zero_point);
      vfpacc1x0 = math_max_f32(vfpacc1x0, voutput_min_less_zero_point);
      vfpacc1x1 = math_max_f32(vfpacc1x1, voutput_min_less_zero_point);
      vfpacc1x2 = math_max_f32(vfpacc1x2, voutput_min_less_zero_point);
      vfpacc1x3 = math_max_f32(vfpacc1x3, voutput_min_less_zero_point);
  
      const float voutput_max_less_zero_point = params->scalar_magic.output_max_less_zero_point;
      vfpacc0x0 = math_min_f32(vfpacc0x0, voutput_max_less_zero_point);
      vfpacc0x1 = math_min_f32(vfpacc0x1, voutput_max_less_zero_point);
      vfpacc0x2 = math_min_f32(vfpacc0x2, voutput_max_less_zero_point);
      vfpacc0x3 = math_min_f32(vfpacc0x3, voutput_max_less_zero_point);
      vfpacc1x0 = math_min_f32(vfpacc1x0, voutput_max_less_zero_point);
      vfpacc1x1 = math_min_f32(vfpacc1x1, voutput_max_less_zero_point);
      vfpacc1x2 = math_min_f32(vfpacc1x2, voutput_max_less_zero_point);
      vfpacc1x3 = math_min_f32(vfpacc1x3, voutput_max_less_zero_point);
  
      const float vmagic_bias = params->scalar_magic.magic_bias;
      vfpacc0x0 += vmagic_bias;
      vfpacc0x1 += vmagic_bias;
      vfpacc0x2 += vmagic_bias;
      vfpacc0x3 += vmagic_bias;
      vfpacc1x0 += vmagic_bias;
      vfpacc1x1 += vmagic_bias;
      vfpacc1x2 += vmagic_bias;
      vfpacc1x3 += vmagic_bias;
  
      const int32_t vmagic_bias_less_output_zero_point = params->scalar_magic.magic_bias_less_output_zero_point;
      int32_t vout0x0 = (int32_t) fp32_to_bits(vfpacc0x0) - vmagic_bias_less_output_zero_point;
      int32_t vout0x1 = (int32_t) fp32_to_bits(vfpacc0x1) - vmagic_bias_less_output_zero_point;
      int32_t vout0x2 = (int32_t) fp32_to_bits(vfpacc0x2) - vmagic_bias_less_output_zero_point;
      int32_t vout0x3 = (int32_t) fp32_to_bits(vfpacc0x3) - vmagic_bias_less_output_zero_point;
      int32_t vout1x0 = (int32_t) fp32_to_bits(vfpacc1x0) - vmagic_bias_less_output_zero_point;
      int32_t vout1x1 = (int32_t) fp32_to_bits(vfpacc1x1) - vmagic_bias_less_output_zero_point;
      int32_t vout1x2 = (int32_t) fp32_to_bits(vfpacc1x2) - vmagic_bias_less_output_zero_point;
      int32_t vout1x3 = (int32_t) fp32_to_bits(vfpacc1x3) - vmagic_bias_less_output_zero_point;
  
      if XNN_LIKELY(nc >= 4) {
        c1[0] = (int8_t) vout1x0;
        c1[1] = (int8_t) vout1x1;
        c1[2] = (int8_t) vout1x2;
        c1[3] = (int8_t) vout1x3;
        c0[0] = (int8_t) vout0x0;
        c0[1] = (int8_t) vout0x1;
        c0[2] = (int8_t) vout0x2;
        c0[3] = (int8_t) vout0x3;
  
        c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
        c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
  
        a = (const int8_t**restrict) ((uintptr_t) a - ks);
        nc -= 4;
      } else {
        if (nc & 2) {
          c1[0] = (int8_t) vout1x0;
          c1[1] = (int8_t) vout1x1;
          vout1x0 = vout1x2;
          c1 += 2;
          c0[0] = (int8_t) vout0x0;
          c0[1] = (int8_t) vout0x1;
          vout0x0 = vout0x2;
          c0 += 2;
        }
        if (nc & 1) {
          c1[0] = (int8_t) vout1x0;
          c0[0] = (int8_t) vout0x0;
        }
  
        nc = 0;
      }
    } while (nc != 0);
  }
  