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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 <xnnpack/argmaxpool.h>
#include <xnnpack/math.h>
void xnn_f32_argmaxpool_ukernel_9p8x__scalar_c1(
size_t output_pixels,
size_t pooling_elements,
size_t channels,
const float** input,
size_t input_offset,
float* accumulation_buffer,
uint32_t* index_buffer,
float* output,
uint32_t* index,
size_t input_increment,
size_t output_increment)
{
assert(output_pixels != 0);
assert(pooling_elements != 0);
assert(pooling_elements > 9);
assert(channels != 0);
do {
{
float* ab = accumulation_buffer;
uint32_t* ib = index_buffer;
const float* i0 = *input++;
const float* i1 = *input++;
const float* i2 = *input++;
const float* i3 = *input++;
const float* i4 = *input++;
const float* i5 = *input++;
const float* i6 = *input++;
const float* i7 = *input++;
const float* i8 = *input++;
i0 = (const float*) ((uintptr_t) i0 + input_offset);
i1 = (const float*) ((uintptr_t) i1 + input_offset);
i2 = (const float*) ((uintptr_t) i2 + input_offset);
i3 = (const float*) ((uintptr_t) i3 + input_offset);
i4 = (const float*) ((uintptr_t) i4 + input_offset);
i5 = (const float*) ((uintptr_t) i5 + input_offset);
i6 = (const float*) ((uintptr_t) i6 + input_offset);
i7 = (const float*) ((uintptr_t) i7 + input_offset);
i8 = (const float*) ((uintptr_t) i8 + input_offset);
size_t c = channels;
do {
const float vi0 = *i0++;
const float vi1 = *i1++;
const float vi2 = *i2++;
const float vi3 = *i3++;
const float vi4 = *i4++;
const float vi5 = *i5++;
const float vi6 = *i6++;
const float vi7 = *i7++;
const float vi8 = *i8++;
float vmax = vi0;
uint32_t vidx = 0;
if (vi1 > vmax) {
vmax = vi1;
vidx = 1;
}
if (vi2 > vmax) {
vmax = vi2;
vidx = 2;
}
if (vi3 > vmax) {
vmax = vi3;
vidx = 3;
}
if (vi4 > vmax) {
vmax = vi4;
vidx = 4;
}
if (vi5 > vmax) {
vmax = vi5;
vidx = 5;
}
if (vi6 > vmax) {
vmax = vi6;
vidx = 6;
}
if (vi7 > vmax) {
vmax = vi7;
vidx = 7;
}
if (vi8 > vmax) {
vmax = vi8;
vidx = 8;
}
*ab++ = vmax;
*ib++ = vidx;
} while (--c != 0);
}
uint32_t vidx0 = 9;
size_t k = pooling_elements;
for (k -= 9; k > 8; k -= 8) {
const float* i0 = *input++;
const float* i1 = *input++;
const float* i2 = *input++;
const float* i3 = *input++;
const float* i4 = *input++;
const float* i5 = *input++;
const float* i6 = *input++;
const float* i7 = *input++;
i0 = (const float*) ((uintptr_t) i0 + input_offset);
i1 = (const float*) ((uintptr_t) i1 + input_offset);
i2 = (const float*) ((uintptr_t) i2 + input_offset);
i3 = (const float*) ((uintptr_t) i3 + input_offset);
i4 = (const float*) ((uintptr_t) i4 + input_offset);
i5 = (const float*) ((uintptr_t) i5 + input_offset);
i6 = (const float*) ((uintptr_t) i6 + input_offset);
i7 = (const float*) ((uintptr_t) i7 + input_offset);
float* ab = accumulation_buffer;
uint32_t* ib = index_buffer;
size_t c = channels;
do {
const float vi0 = *i0++;
const float vi1 = *i1++;
const float vi2 = *i2++;
const float vi3 = *i3++;
const float vi4 = *i4++;
const float vi5 = *i5++;
const float vi6 = *i6++;
const float vi7 = *i7++;
float vmax = *ab;
uint32_t vidx = *ib;
if (vi0 > vmax) {
vmax = vi0;
vidx = vidx0;
}
if (vi1 > vmax) {
vmax = vi1;
vidx = vidx0 + 1;
}
if (vi2 > vmax) {
vmax = vi2;
vidx = vidx0 + 2;
}
if (vi3 > vmax) {
vmax = vi3;
vidx = vidx0 + 3;
}
if (vi4 > vmax) {
vmax = vi4;
vidx = vidx0 + 4;
}
if (vi5 > vmax) {
vmax = vi5;
vidx = vidx0 + 5;
}
if (vi6 > vmax) {
vmax = vi6;
vidx = vidx0 + 6;
}
if (vi7 > vmax) {
vmax = vi7;
vidx = vidx0 + 7;
}
*ab++ = vmax;
*ib++ = vidx;
} while (--c != 0);
vidx0 += 8;
}
float* o = output;
uint32_t* i = index;
{
const float* i0 = input[0];
const float* i1 = input[1];
const float* i2 = input[2];
const float* i3 = input[3];
const float* i4 = input[4];
const float* i5 = input[5];
const float* i6 = input[6];
const float* i7 = input[7];
i0 = (const float*) ((uintptr_t) i0 + input_offset);
i1 = (const float*) ((uintptr_t) i1 + input_offset);
i2 = (const float*) ((uintptr_t) i2 + input_offset);
i3 = (const float*) ((uintptr_t) i3 + input_offset);
i4 = (const float*) ((uintptr_t) i4 + input_offset);
i5 = (const float*) ((uintptr_t) i5 + input_offset);
i6 = (const float*) ((uintptr_t) i6 + input_offset);
i7 = (const float*) ((uintptr_t) i7 + input_offset);
input = (const float**) ((uintptr_t) input + input_increment);
if (k < 2) {
i1 = i0;
}
if (k <= 2) {
i2 = i0;
}
if (k < 4) {
i3 = i0;
}
if (k <= 4) {
i4 = i0;
}
if (k < 6) {
i5 = i0;
}
if (k <= 6) {
i6 = i0;
}
if (k != 8) {
i7 = i0;
}
size_t c = channels;
float* ab = accumulation_buffer;
uint32_t* ib = index_buffer;
do {
const float vi0 = *i0++;
const float vi1 = *i1++;
const float vi2 = *i2++;
const float vi3 = *i3++;
const float vi4 = *i4++;
const float vi5 = *i5++;
const float vi6 = *i6++;
const float vi7 = *i7++;
float vmax = *ab++;
uint32_t vidx = *ib++;
if (vi0 > vmax) {
vmax = vi0;
vidx = vidx0;
}
if (vi1 > vmax) {
vmax = vi1;
vidx = vidx0 + 1;
}
if (vi2 > vmax) {
vmax = vi2;
vidx = vidx0 + 2;
}
if (vi3 > vmax) {
vmax = vi3;
vidx = vidx0 + 3;
}
if (vi4 > vmax) {
vmax = vi4;
vidx = vidx0 + 4;
}
if (vi5 > vmax) {
vmax = vi5;
vidx = vidx0 + 5;
}
if (vi6 > vmax) {
vmax = vi6;
vidx = vidx0 + 6;
}
if (vi7 > vmax) {
vmax = vi7;
vidx = vidx0 + 7;
}
*o++ = vmax;
*i++ = vidx;
} while (--c != 0);
}
output = (float*) ((uintptr_t) o + output_increment);
index = (uint32_t*) i;
} while (--output_pixels != 0);
}
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