// clang-format off

// Auto-generated file. Do not edit!

//   Template: src/qs8-gemm/MRx8c8-avxvnni.c.in

//   Generator: tools/xngen

//

// Copyright 2024 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 <stddef.h>

#include <stdint.h>

#include <immintrin.h>

#include "src/xnnpack/common.h"

#include "src/xnnpack/gemm.h"

#include "src/xnnpack/intrinsics-polyfill.h"

#include "src/xnnpack/math.h"

#include "src/xnnpack/microparams.h"

#include "src/xnnpack/unaligned.h"

void xnn_qd8_f16_qc4w_gemm_minmax_ukernel_1x8c8__avx256vnni(

    size_t mr,

    size_t nc,

    size_t kc,

    const int8_t* restrict a,

    size_t a_stride,

    const void* restrict w,

    xnn_float16* restrict c,

    size_t cm_stride,

    size_t cn_stride,

    const struct xnn_f16_qc4w_minmax_params* restrict params,

    const struct xnn_qd8_quantization_params* restrict quantization_params) XNN_OOB_READS

{

  assert(mr != 0);

  assert(mr <= 1);

  assert(nc != 0);

  assert(kc != 0);

  assert(kc % sizeof(int8_t) == 0);

  assert(a != NULL);

  assert(w != NULL);

  assert(c != NULL);

  kc = round_up_po2(kc, 8 * sizeof(int8_t));

  const int8_t* a0 = a;

  uint16_t* c0 = (uint16_t*) c;

  const __m256i vinput_zero_point0 = _mm256_set1_epi32((int) quantization_params[0].zero_point);

  const __m256 voutput_min = _mm256_cvtph_ps(_mm_set1_epi16(*(const uint16_t*) &params->scalar.min));

  const __m256 voutput_max = _mm256_cvtph_ps(_mm_set1_epi16(*(const uint16_t*) &params->scalar.max));

  // XNN_FORCE_REALIZATION(voutput_min);

  // XNN_FORCE_REALIZATION(voutput_max);

  const __m256i vmask = _mm256_set1_epi8(0xF0);

  XNN_FORCE_REALIZATION(vmask);

  do {

    const __m256i vksum01234567 = _mm256_load_si256(w);

    __m256i vsum0x01234567 = _mm256_mullo_epi32(vksum01234567, vinput_zero_point0);

    __m256i vacc0x0123 = _mm256_cvtepu32_epi64(_mm256_extracti128_si256(vsum0x01234567, 0));

    __m256i vacc0x4567 = _mm256_cvtepu32_epi64(_mm256_extracti128_si256(vsum0x01234567, 1));

    __m256i vacc1x0x0123 = _mm256_setzero_si256();

    __m256i vacc1x0x4567 = _mm256_setzero_si256();

    w = (const int32_t*) w + 8;

    size_t k = kc;

    while (k >= 16 * sizeof(int8_t)) {

      const __m256i va0x01234567 = _mm256_set1_epi64x((int64_t) unaligned_load_u64(a0));

      const __m256i va0x89ABCDEF = _mm256_set1_epi64x((int64_t) unaligned_load_u64(a0 + 8));

      a0 += 16;

      const __m256i vbb01234567x01234567 = _mm256_load_si256(w);

      const __m256i vbb89ABCDEFx01234567 = _mm256_load_si256((const __m256i*) ((const int8_t*) w + 32));

      const __m256i vbs01234567x0123 = _mm256_slli_epi32(vbb01234567x01234567, 4);

      const __m256i vbs89ABCDEFx0123 = _mm256_slli_epi32(vbb89ABCDEFx01234567, 4);

      const __m256i vb01234567x4567 = _mm256_and_si256(vbb01234567x01234567, vmask);

      const __m256i vb89ABCDEFx4567 = _mm256_and_si256(vbb89ABCDEFx01234567, vmask);

      const __m256i vb01234567x0123 = _mm256_and_si256(vbs01234567x0123, vmask);

      const __m256i vb89ABCDEFx0123 = _mm256_and_si256(vbs89ABCDEFx0123, vmask);

      vacc0x0123 = _mm256_dpbusd_epi32(vacc0x0123, va0x01234567, vb01234567x0123);

      vacc0x4567 = _mm256_dpbusd_epi32(vacc0x4567, va0x01234567, vb89ABCDEFx0123);

      vacc1x0x0123 = _mm256_dpbusd_epi32(vacc1x0x0123, va0x89ABCDEF, vb01234567x4567);

      vacc1x0x4567 = _mm256_dpbusd_epi32(vacc1x0x4567, va0x89ABCDEF, vb89ABCDEFx4567);

      w = (const int8_t*) w + 64;

      k -= 16 * sizeof(int8_t);

    }

    if (k != 0) {

      const __m256i va0x01234567 = _mm256_set1_epi64x((int64_t) unaligned_load_u64(a0));

      a0 += 8;

      const __m256i vbb01234567x01234567 = _mm256_load_si256(w);

      const __m256i vbb89ABCDEFx01234567 = _mm256_load_si256((const __m256i*) ((const int8_t*) w + 32));

      const __m256i vb01234567x0123 = _mm256_slli_epi32(vbb01234567x01234567, 4);

      const __m256i vb89ABCDEFx0123 = _mm256_slli_epi32(vbb89ABCDEFx01234567, 4);

      vacc0x0123 = _mm256_dpbusd_epi32(vacc0x0123, va0x01234567, vb01234567x0123);

      vacc0x4567 = _mm256_dpbusd_epi32(vacc0x4567, va0x01234567, vb89ABCDEFx0123);

      w = (const int8_t*) w + 64;

      k -= 8 * sizeof(int8_t);

    }

    vacc0x0123 = _mm256_add_epi32(vacc0x0123, vacc1x0x0123);

    vacc0x4567 = _mm256_add_epi32(vacc0x4567, vacc1x0x4567);

    // Add adjacent pairs

    const __m256i vsum0x02134657 = _mm256_hadd_epi32(vacc0x0123, vacc0x4567);

    __m256i vacc0x01234567 = _mm256_permute4x64_epi64(vsum0x02134657, _MM_SHUFFLE(3, 1, 2, 0));

    vacc0x01234567 = _mm256_srai_epi32(vacc0x01234567, 4);

    __m256 vout0x01234567 = _mm256_cvtepi32_ps(vacc0x01234567);

    vout0x01234567 = _mm256_mul_ps(vout0x01234567, _mm256_set1_ps(quantization_params[0].inv_scale));

    const __m256 vfilter_output_scale01234567 = _mm256_load_ps((const float*) w);

    const __m256 vbias01234567 = _mm256_load_ps((const float*) w + 8);

    w = (const float*) w + 16;

    vout0x01234567 = _mm256_fmadd_ps(vout0x01234567, vfilter_output_scale01234567, vbias01234567);

    vout0x01234567 = _mm256_max_ps(vout0x01234567, voutput_min);

    vout0x01234567 = _mm256_min_ps(vout0x01234567, voutput_max);

    __m128i vfp16out0x01234567 = _mm256_cvtps_ph(vout0x01234567, _MM_FROUND_TO_NEAREST_INT);

    if XNN_LIKELY(nc >= 8) {

      _mm_storeu_si128((__m128i*) c0, vfp16out0x01234567);

      a0 = (const int8_t*) ((uintptr_t) a0 - kc);

      c0 = (uint16_t*) ((uintptr_t) c0 + cn_stride);

      nc -= 8;

    } else {

      // Prepare mask for valid 16-bit elements (depends on nc).

      const __mmask8 vmask = _cvtu32_mask8((UINT32_C(1) << nc) - 1);

      _mm_mask_storeu_epi16(c0, vmask, vfp16out0x01234567);

      nc = 0;

    }

  } while (nc != 0);

}