src/f32-gemm/gen/1x16-avx512f-broadcast.c

// Auto-generated file. Do not edit!
//   Template: src/f32-gemm/avx512-broadcast.c.in
//   Generator: tools/xngen
//
// Copyright 2019 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 <immintrin.h>

#include <xnnpack/gemm.h>
#include <xnnpack/intrinsics-polyfill.h>


void xnn_f32_gemm_ukernel_1x16__avx512f_broadcast(
    size_t mr,
    size_t nc,
    size_t kc,
    const float*restrict a,
    size_t a_stride,
    const float*restrict w,
    float*restrict c,
    size_t cm_stride,
    size_t cn_stride,
    const union xnn_f32_output_params params[restrict static 1])
{
  assert(mr != 0);
  assert(mr <= 1);
  assert(nc != 0);
  assert(kc != 0);
  assert(kc % sizeof(float) == 0);
  assert(a != NULL);
  assert(w != NULL);
  assert(c != NULL);

  const float* a0 = a;
  float* c0 = c;

  do {
    __m512 vacc0x0123456789ABCDEF = _mm512_load_ps(w);
    w += 16;

    size_t k = kc;
    do {
      const __m512 vb0123456789ABCDEF = _mm512_load_ps(w);
      w += 16;

      vacc0x0123456789ABCDEF = _mm512_fmadd_ps(_mm512_set1_ps(*a0), vb0123456789ABCDEF, vacc0x0123456789ABCDEF);

      a0 += 1;

      k -= sizeof(float);
    } while (k != 0);

    const __m512 vmax = _mm512_broadcast_f32x4(_mm_load_ps(params->sse.max));
    vacc0x0123456789ABCDEF = _mm512_min_ps(vacc0x0123456789ABCDEF, vmax);

    const __m512 vmin = _mm512_broadcast_f32x4(_mm_load_ps(params->sse.min));
    vacc0x0123456789ABCDEF = _mm512_max_ps(vacc0x0123456789ABCDEF, vmin);

    if XNN_LIKELY(nc >= 16) {
      _mm512_storeu_ps(c0, vacc0x0123456789ABCDEF);
      c0 = (float*) ((uintptr_t) c0 + cn_stride);

      a0 = (const float*) ((uintptr_t) a0 - kc);

      nc -= 16;
    } else {
      if (nc & 15) {
        // Prepare mask for valid 32-bit elements (depends on nc).
        const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << nc) - UINT32_C(1)));

        _mm512_mask_storeu_ps(c0, vmask, vacc0x0123456789ABCDEF);
      }

      nc = 0;
    }
  } while (nc != 0);
}