text: // Auto-generated file. Do not edit!
  //   Template: src/qs8-igemm/MRx4c2-wasmsimd-dot16x2.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 <wasm_simd128.h>
  
  #include <xnnpack/igemm.h>
  #include <xnnpack/math.h>
  
  
  void xnn_qc8_igemm_minmax_fp32_ukernel_1x4c2__wasmsimd_dot16x2_ld128(
      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)]) XNN_DISABLE_TSAN XNN_DISABLE_MSAN
  {
    assert(mr != 0);
    assert(mr <= 1);
    assert(nc != 0);
    assert(kc != 0);
    assert(ks != 0);
    assert(ks % (1 * sizeof(void*)) == 0);
    assert(a_offset % sizeof(int8_t) == 0);
    assert(a != NULL);
    assert(w != NULL);
    assert(c != NULL);
  
    kc = round_up_po2(kc, 2);
    int8_t* c0 = c;
  
    do {
      v128_t vacc0x0123 = wasm_v128_load(w);
      w = (const void*) ((const int32_t*) w + 4);
  
      size_t p = ks;
      do {
        const int8_t* restrict a0 = a[0];
        if XNN_UNPREDICTABLE(a0 != zero) {
          a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
        }
        a += 1;
  
        size_t k = kc;
        while (k >= 8 * sizeof(int8_t)) {
          const v128_t vxa0 = wasm_i16x8_load8x8(a0);
          a0 += 8;
  
          const v128_t vb01 = wasm_v128_load(w);
          const v128_t vxb0 = wasm_i16x8_extend_low_i8x16(vb01);
          const v128_t vxb1 = wasm_i16x8_extend_high_i8x16(vb01);
  
          vacc0x0123 = wasm_i32x4_add(vacc0x0123,
            wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 0, 0, 0, 0), vxb0));
  
          vacc0x0123 = wasm_i32x4_add(vacc0x0123,
            wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 1, 1, 1, 1), vxb1));
          const v128_t vb23 = wasm_v128_load((const int8_t*) w + 16);
          const v128_t vxb2 = wasm_i16x8_extend_low_i8x16(vb23);
          const v128_t vxb3 = wasm_i16x8_extend_high_i8x16(vb23);
  
          vacc0x0123 = wasm_i32x4_add(vacc0x0123,
            wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 2, 2, 2, 2), vxb2));
  
          vacc0x0123 = wasm_i32x4_add(vacc0x0123,
            wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 3, 3, 3, 3), vxb3));
  
          w = (const void*) ((const int8_t*) w + 32);
          k -= 8 * sizeof(int8_t);
        }
        if (k != 0) {
          const v128_t vxa0 = wasm_i16x8_load8x8(a0);
          a0 = (const int8_t*) ((uintptr_t) a0 + k);
  
          const v128_t vxb0 = wasm_i16x8_load8x8(w);
          w = (const void*) ((const int8_t*) w + 8);
  
          vacc0x0123 = wasm_i32x4_add(vacc0x0123,
            wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 0, 0, 0, 0), vxb0));
  
          if (k > 2 * sizeof(int8_t)) {
            const v128_t vxb1 = wasm_i16x8_load8x8(w);
            w = (const void*) ((const int8_t*) w + 8);
  
            vacc0x0123 = wasm_i32x4_add(vacc0x0123,
              wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 1, 1, 1, 1), vxb1));
  
            if (k > 4 * sizeof(int8_t)) {
              const v128_t vxb2 = wasm_i16x8_load8x8(w);
              w = (const void*) ((const int8_t*) w + 8);
  
              vacc0x0123 = wasm_i32x4_add(vacc0x0123,
                wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 2, 2, 2, 2), vxb2));
            }
          }
        }
        p -= 1 * sizeof(void*);
      } while (p != 0);
  
      vacc0x0123 = wasm_f32x4_convert_i32x4(vacc0x0123);
  
      const v128_t vscale0123 = wasm_v128_load(w);
      w = (const void*) ((const float*) w + 4);
      vacc0x0123 = wasm_f32x4_mul(vacc0x0123, vscale0123);
  
      const v128_t voutput_min_less_zero_point = wasm_v128_load(params->wasmsimd.output_min_less_zero_point);
      vacc0x0123 = wasm_f32x4_max(voutput_min_less_zero_point, vacc0x0123);
  
      const v128_t voutput_max_less_zero_point = wasm_v128_load(params->wasmsimd.output_max_less_zero_point);
      vacc0x0123 = wasm_f32x4_min(voutput_max_less_zero_point, vacc0x0123);
  
      const v128_t vmagic_bias = wasm_v128_load(params->wasmsimd.magic_bias);
      vacc0x0123 = wasm_f32x4_add(vacc0x0123, vmagic_bias);
  
      const v128_t vmagic_bias_less_output_zero_point = wasm_v128_load(params->wasmsimd.magic_bias_less_output_zero_point);
      vacc0x0123 = wasm_i32x4_sub(vacc0x0123, vmagic_bias_less_output_zero_point);
  
      v128_t vacc00x0123 = wasm_i16x8_narrow_i32x4(vacc0x0123, vacc0x0123);
  
      v128_t vout = wasm_i8x16_narrow_i16x8(vacc00x0123, vacc00x0123);
  
      if (nc >= 4) {
        *((float*) c0) = (float) wasm_f32x4_extract_lane(vout, 0);
  
        c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
  
        a = (const int8_t**restrict) ((uintptr_t) a - ks);
  
        nc -= 4;
      } else {
        uint32_t vout0 = wasm_i32x4_extract_lane(vout, 0);
        if (nc & 2) {
          *((uint16_t*) c0) = (uint16_t) vout0;
          vout0 >>= 16;
          c0 += 2;
        }
        if (nc & 1) {
          *c0 = (int8_t) vout0;
        }
  
        nc = 0;
      }
    } while (nc != 0);
  }
  