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// 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 <xmmintrin.h>
#include <xnnpack/gavgpool.h>
void xnn_f32_gavgpool_minmax_ukernel_7x__sse_c4(
size_t rows,
size_t channels,
const float* input,
size_t input_stride,
const float* zero,
float* output,
const union xnn_f32_scaleminmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
{
assert(rows != 0);
assert(rows <= 7);
assert(channels != 0);
const float* i0 = input;
const float* i1 = (const float*) ((uintptr_t) i0 + input_stride);
if (rows < 2) {
i1 = zero;
}
const float* i2 = (const float*) ((uintptr_t) i1 + input_stride);
if (rows <= 2) {
i2 = zero;
}
const float* i3 = (const float*) ((uintptr_t) i2 + input_stride);
if (rows < 4) {
i3 = zero;
}
const float* i4 = (const float*) ((uintptr_t) i3 + input_stride);
if (rows <= 4) {
i4 = zero;
}
const float* i5 = (const float*) ((uintptr_t) i4 + input_stride);
if (rows < 6) {
i5 = zero;
}
const float* i6 = (const float*) ((uintptr_t) i5 + input_stride);
if (rows <= 6) {
i6 = zero;
}
const __m128 vscale = _mm_load_ps(params->sse2.scale);
const __m128 vmin = _mm_load_ps(params->sse2.min);
const __m128 vmax = _mm_load_ps(params->sse2.max);
while (channels >= 4) {
const __m128 vi0 = _mm_loadu_ps(i0);
i0 += 4;
const __m128 vi1 = _mm_loadu_ps(i1);
i1 += 4;
const __m128 vi2 = _mm_loadu_ps(i2);
i2 += 4;
const __m128 vi3 = _mm_loadu_ps(i3);
i3 += 4;
const __m128 vi4 = _mm_loadu_ps(i4);
i4 += 4;
const __m128 vi5 = _mm_loadu_ps(i5);
i5 += 4;
const __m128 vi6 = _mm_loadu_ps(i6);
i6 += 4;
const __m128 vsum01 = _mm_add_ps(vi0, vi1);
const __m128 vsum23 = _mm_add_ps(vi2, vi3);
const __m128 vsum45 = _mm_add_ps(vi4, vi5);
const __m128 vsum016 = _mm_add_ps(vsum01, vi6);
const __m128 vsum2345 = _mm_add_ps(vsum23, vsum45);
const __m128 vsum = _mm_add_ps(vsum016, vsum2345);
__m128 vout = _mm_mul_ps(vsum, vscale);
vout = _mm_max_ps(vout, vmin);
vout = _mm_min_ps(vout, vmax);
_mm_storeu_ps(output, vout);
output += 4;
channels -= 4;
}
if (channels != 0) {
const __m128 vi0 = _mm_loadu_ps(i0);
const __m128 vi1 = _mm_loadu_ps(i1);
const __m128 vi2 = _mm_loadu_ps(i2);
const __m128 vi3 = _mm_loadu_ps(i3);
const __m128 vi4 = _mm_loadu_ps(i4);
const __m128 vi5 = _mm_loadu_ps(i5);
const __m128 vi6 = _mm_loadu_ps(i6);
const __m128 vsum01 = _mm_add_ps(vi0, vi1);
const __m128 vsum23 = _mm_add_ps(vi2, vi3);
const __m128 vsum45 = _mm_add_ps(vi4, vi5);
const __m128 vsum016 = _mm_add_ps(vsum01, vi6);
const __m128 vsum2345 = _mm_add_ps(vsum23, vsum45);
const __m128 vsum = _mm_add_ps(vsum016, vsum2345);
__m128 vout = _mm_mul_ps(vsum, vscale);
vout = _mm_max_ps(vout, vmin);
vout = _mm_min_ps(vout, vmax);
if (channels & 2) {
_mm_storel_pi((__m64*) output, vout);
vout = _mm_movehl_ps(vout, vout);
output += 2;
}
if (channels & 1) {
_mm_store_ss(output, vout);
}
}
}