text: // Auto-generated file. Do not edit!
  //   Template: src/qs8-gemm/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_qu8_gemm_minmax_fp32_ukernel_1x4__scalar_imagic(
      size_t mr,
      size_t nc,
      size_t kc,
      const uint8_t* restrict a,
      size_t a_stride,
      const void* restrict w,
      uint8_t* restrict c,
      size_t cm_stride,
      size_t cn_stride,
      const union xnn_qu8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)])
  {
    assert(mr != 0);
    assert(mr <= 1);
    assert(nc != 0);
    assert(kc != 0);
  
    const uint8_t* a0 = a;
    uint8_t* c0 = c;
  
    const int32_t vb_zero_point = params->fp32_scalar_imagic.kernel_zero_point;
    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];
      w = (const void*) ((const int32_t*) w + 4);
  
      size_t k = kc;
      do {
        const int32_t va0 = (int32_t) (uint32_t) *a0++;
  
        const int32_t vb0 = (int32_t) (uint32_t) ((const uint8_t*) w)[0] - vb_zero_point;
        const int32_t vb1 = (int32_t) (uint32_t) ((const uint8_t*) w)[1] - vb_zero_point;
        const int32_t vb2 = (int32_t) (uint32_t) ((const uint8_t*) w)[2] - vb_zero_point;
        const int32_t vb3 = (int32_t) (uint32_t) ((const uint8_t*) w)[3] - vb_zero_point;
        w = (const void*) ((const uint8_t*) w + 4);
  
        vacc0x0 += va0 * vb0;
        vacc0x1 += va0 * vb1;
        vacc0x2 += va0 * vb2;
        vacc0x3 += va0 * vb3;
  
        k -= sizeof(uint8_t);
      } while (k != 0);
  
      float vfpacc0x0 = (float) vacc0x0;
      float vfpacc0x1 = (float) vacc0x1;
      float vfpacc0x2 = (float) vacc0x2;
      float vfpacc0x3 = (float) vacc0x3;
  
      const float vscale = params->fp32_scalar_imagic.scale;
      vfpacc0x0 *= vscale;
      vfpacc0x1 *= vscale;
      vfpacc0x2 *= vscale;
      vfpacc0x3 *= vscale;
  
      const float vmagic_bias = params->fp32_scalar_imagic.magic_bias;
      vfpacc0x0 += vmagic_bias;
      vfpacc0x1 += vmagic_bias;
      vfpacc0x2 += vmagic_bias;
      vfpacc0x3 += vmagic_bias;
  
      int32_t vout0x0 = (int32_t) fp32_to_bits(vfpacc0x0);
      int32_t vout0x1 = (int32_t) fp32_to_bits(vfpacc0x1);
      int32_t vout0x2 = (int32_t) fp32_to_bits(vfpacc0x2);
      int32_t vout0x3 = (int32_t) fp32_to_bits(vfpacc0x3);
  
      const int32_t vmagic_min = params->fp32_scalar_imagic.magic_min;
      vout0x0 = math_max_s32(vout0x0, vmagic_min);
      vout0x1 = math_max_s32(vout0x1, vmagic_min);
      vout0x2 = math_max_s32(vout0x2, vmagic_min);
      vout0x3 = math_max_s32(vout0x3, vmagic_min);
  
      const int32_t vmagic_max = params->fp32_scalar_imagic.magic_max;
      vout0x0 = math_min_s32(vout0x0, vmagic_max);
      vout0x1 = math_min_s32(vout0x1, vmagic_max);
      vout0x2 = math_min_s32(vout0x2, vmagic_max);
      vout0x3 = math_min_s32(vout0x3, vmagic_max);
  
      const int32_t vmagic_bias_less_zero_point = params->fp32_scalar_imagic.magic_bias_less_zero_point;
      vout0x0 -= vmagic_bias_less_zero_point;
      vout0x1 -= vmagic_bias_less_zero_point;
      vout0x2 -= vmagic_bias_less_zero_point;
      vout0x3 -= vmagic_bias_less_zero_point;
  
      if XNN_LIKELY(nc >= 4) {
        c0[0] = (uint8_t) vout0x0;
        c0[1] = (uint8_t) vout0x1;
        c0[2] = (uint8_t) vout0x2;
        c0[3] = (uint8_t) vout0x3;
  
        a0 = (const uint8_t*) ((uintptr_t) a0 - kc);
  
        c0 = (uint8_t*) ((uintptr_t) c0 + cn_stride);
  
        nc -= 4;
      } else {
        if (nc & 2) {
          c0[0] = (uint8_t) vout0x0;
          c0[1] = (uint8_t) vout0x1;
          vout0x0 = vout0x2;
          c0 += 2;
        }
        if (nc & 1) {
          c0[0] = (uint8_t) vout0x0;
        }
  
        nc = 0;
      }
    } while (nc != 0);
  }
  