text: // Auto-generated file. Do not edit!
  //   Template: src/f32-dwconv2d-chw/3x3p1-wasmsimd-loadsplat.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 <wasm_simd128.h>
  
  
  #include <xnnpack/dwconv.h>
  #include <xnnpack/math.h>
  
  
  
  void xnn_f32_dwconv2d_chw_ukernel_3x3p1__wasmsimd_x86_loadsplat_1x4_acc3(
      size_t input_height,
      size_t input_width,
      const float* input,
      const float* weights,
      const float* zero,
      float* output,
      uint32_t padding_top,
      const union xnn_f32_chw_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
  {
    assert(input_height != 0);
    assert(input_width != 0);
    assert(input_width % sizeof(float) == 0);
    assert(padding_top == 1);
  
    const v128_t vmask = wasm_v128_load(params->scalar.mask);
    const v128_t vmax = wasm_v128_load32_splat(&params->scalar.max);
    const v128_t vmin = wasm_v128_load32_splat(&params->scalar.min);
  
    const v128_t vw0123 = wasm_v128_load(weights);
    const v128_t vw4567 = wasm_v128_load(weights + 4);
    const v128_t vw89 = wasm_v128_load64_splat(weights + 8);
    const v128_t vbias = wasm_v32x4_shuffle(vw0123, vw0123, 0, 0, 0, 0);
    const v128_t vk00 = wasm_v32x4_shuffle(vw0123, vw0123, 1, 1, 1, 1);
    const v128_t vk01 = wasm_v32x4_shuffle(vw0123, vw0123, 2, 2, 2, 2);
    const v128_t vk02 = wasm_v32x4_shuffle(vw0123, vw0123, 3, 3, 3, 3);
    const v128_t vk10 = wasm_v32x4_shuffle(vw4567, vw4567, 0, 0, 0, 0);
    const v128_t vk11 = wasm_v32x4_shuffle(vw4567, vw4567, 1, 1, 1, 1);
    const v128_t vk12 = wasm_v32x4_shuffle(vw4567, vw4567, 2, 2, 2, 2);
    const v128_t vk20 = wasm_v32x4_shuffle(vw4567, vw4567, 3, 3, 3, 3);
    const v128_t vk21 = wasm_v32x4_shuffle(vw89, vw89, 0, 0, 0, 0);
    const v128_t vk22 = wasm_v32x4_shuffle(vw89, vw89, 1, 1, 1, 1);
  
    const size_t input_decrement = round_up_po2(input_width, 4 * sizeof(float));
  
    const float* i0 = zero;
    const float* i1 = input;
    const float* i2 = (const float*) ((uintptr_t) i1 + input_width);
  
    float* o0 = output;
  
    size_t output_height = input_height;
    do {
      if XNN_UNPREDICTABLE(output_height < 2) {
        i2 = zero;
      }
  
      v128_t vi0x0123 = wasm_f32x4_const_splat(0.0f);
      v128_t vi1x0123 = wasm_f32x4_const_splat(0.0f);
      v128_t vi2x0123 = wasm_f32x4_const_splat(0.0f);
  
      v128_t vi0x4567 = wasm_v128_load(i0);
      i0 += 4;
      v128_t vi1x4567 = wasm_v128_load(i1);
      i1 += 4;
      v128_t vi2x4567 = wasm_v128_load(i2);
      i2 += 4;
  
      size_t w = input_width;
      for (; w > 4 * sizeof(float); w -= 4 * sizeof(float)) {
        const v128_t vi0x89AB = wasm_v128_load(i0);
        i0 += 4;
        const v128_t vi1x89AB = wasm_v128_load(i1);
        i1 += 4;
        const v128_t vi2x89AB = wasm_v128_load(i2);
        i2 += 4;
  
        v128_t vo0p0 = wasm_f32x4_add(vbias, wasm_f32x4_mul(vi0x4567, vk01));
        v128_t vo0p1 = wasm_f32x4_mul(vi1x4567, vk11);
        v128_t vo0p2 = wasm_f32x4_mul(vi2x4567, vk21);
  
        const v128_t vi0x3456 = wasm_v32x4_shuffle(vi0x0123, vi0x4567, 3, 4, 5, 6);
        const v128_t vi1x3456 = wasm_v32x4_shuffle(vi1x0123, vi1x4567, 3, 4, 5, 6);
        const v128_t vi2x3456 = wasm_v32x4_shuffle(vi2x0123, vi2x4567, 3, 4, 5, 6);
  
        vo0p0 = wasm_f32x4_add(vo0p0, wasm_f32x4_mul(vi0x3456, vk00));
        vo0p1 = wasm_f32x4_add(vo0p1, wasm_f32x4_mul(vi1x3456, vk10));
        vo0p2 = wasm_f32x4_add(vo0p2, wasm_f32x4_mul(vi2x3456, vk20));
  
        vi0x0123 = vi0x4567;
        vi1x0123 = vi1x4567;
        vi2x0123 = vi2x4567;
  
        const v128_t vi0x5678 = wasm_v32x4_shuffle(vi0x4567, vi0x89AB, 1, 2, 3, 4);
        const v128_t vi1x5678 = wasm_v32x4_shuffle(vi1x4567, vi1x89AB, 1, 2, 3, 4);
        const v128_t vi2x5678 = wasm_v32x4_shuffle(vi2x4567, vi2x89AB, 1, 2, 3, 4);
  
        vo0p0 = wasm_f32x4_add(vo0p0, wasm_f32x4_mul(vi0x5678, vk02));
        vo0p1 = wasm_f32x4_add(vo0p1, wasm_f32x4_mul(vi1x5678, vk12));
        vo0p2 = wasm_f32x4_add(vo0p2, wasm_f32x4_mul(vi2x5678, vk22));
  
        vi0x4567 = vi0x89AB;
        vi1x4567 = vi1x89AB;
        vi2x4567 = vi2x89AB;
  
        vo0p0 = wasm_f32x4_add(vo0p0, vo0p1);
        vo0p0 = wasm_f32x4_add(vo0p0, vo0p2);
  
        v128_t vo0 = wasm_f32x4_pmax(vmin, vo0p0);
        vo0 = wasm_f32x4_pmin(vmax, vo0);
  
        wasm_v128_store(o0, vo0);
        o0 += 4;
      }
      // Always process the last block of 1..4 pixels.
      assert(w >= 1 * sizeof(float));
      assert(w <= 4 * sizeof(float));
      {
        vi0x4567 = wasm_v128_and(vmask, vi0x4567);
        vi1x4567 = wasm_v128_and(vmask, vi1x4567);
        vi2x4567 = wasm_v128_and(vmask, vi2x4567);
  
        v128_t vo0p0 = wasm_f32x4_add(vbias, wasm_f32x4_mul(vi0x4567, vk01));
        v128_t vo0p1 = wasm_f32x4_mul(vi1x4567, vk11);
        v128_t vo0p2 = wasm_f32x4_mul(vi2x4567, vk21);
  
        const v128_t vi0x3456 = wasm_v32x4_shuffle(vi0x0123, vi0x4567, 3, 4, 5, 6);
        const v128_t vi1x3456 = wasm_v32x4_shuffle(vi1x0123, vi1x4567, 3, 4, 5, 6);
        const v128_t vi2x3456 = wasm_v32x4_shuffle(vi2x0123, vi2x4567, 3, 4, 5, 6);
  
        vo0p0 = wasm_f32x4_add(vo0p0, wasm_f32x4_mul(vi0x3456, vk00));
        vo0p1 = wasm_f32x4_add(vo0p1, wasm_f32x4_mul(vi1x3456, vk10));
        vo0p2 = wasm_f32x4_add(vo0p2, wasm_f32x4_mul(vi2x3456, vk20));
  
        const v128_t vzero = wasm_f32x4_const_splat(0.0f);
        const v128_t vi0x5678 = wasm_v32x4_shuffle(vi0x4567, vzero, 1, 2, 3, 4);
        const v128_t vi1x5678 = wasm_v32x4_shuffle(vi1x4567, vzero, 1, 2, 3, 4);
        const v128_t vi2x5678 = wasm_v32x4_shuffle(vi2x4567, vzero, 1, 2, 3, 4);
  
        vo0p0 = wasm_f32x4_add(vo0p0, wasm_f32x4_mul(vi0x5678, vk02));
        vo0p1 = wasm_f32x4_add(vo0p1, wasm_f32x4_mul(vi1x5678, vk12));
        vo0p2 = wasm_f32x4_add(vo0p2, wasm_f32x4_mul(vi2x5678, vk22));
  
        vo0p0 = wasm_f32x4_add(vo0p0, vo0p1);
        vo0p0 = wasm_f32x4_add(vo0p0, vo0p2);
  
        v128_t vo0 = wasm_f32x4_pmax(vmin, vo0p0);
        vo0 = wasm_f32x4_pmin(vmax, vo0);
  
        if XNN_LIKELY(w == 4 * sizeof(float)) {
          wasm_v128_store(o0, vo0);
          o0 += 4;
        } else {
          if (w & (2 * sizeof(float))) {
            *((double*) o0) = wasm_f64x2_extract_lane(vo0, 0);
            o0 += 2;
  
            vo0 = wasm_v32x4_shuffle(vo0, vo0, 2, 3, 0, 1);
          }
          if (w & (1 * sizeof(float))) {
            *o0 = wasm_f32x4_extract_lane(vo0, 0);
            o0 += 1;
          }
        }
      }
  
      i0 = (const float*) ((uintptr_t) i1 - input_decrement);
      i1 = (const float*) ((uintptr_t) i2 - input_decrement);
      i2 = (const float*) ((uintptr_t) i1 + input_width);
  
  
    } while (--output_height != 0);
  }
  