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// 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 <arm_neon.h>
#include <xnnpack/conv.h>
#include <xnnpack/math.h>
void xnn_f32_conv_hwc2chw_ukernel_3x3s2p1c3x4__neon_2x2(
size_t input_height,
size_t input_width,
size_t output_y_start,
size_t output_y_end,
const float* input,
const float* zero,
const float* weights,
float* output,
size_t input_padding_top,
size_t output_channels,
size_t output_height_stride,
size_t output_channel_stride,
const union xnn_f32_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
{
assert(input_width != 0);
assert(output_y_end > output_y_start);
assert(input_padding_top <= 1);
assert(output_channels != 0);
const size_t input_height_stride = input_width * 3 /* channels */ * sizeof(float);
const size_t input_width_increment = round_down_po2(input_width, 4) * 3 /* channels */ * sizeof(float);
const size_t output_width = (input_width + 1) / 2;
const size_t output_channel_increment = output_channel_stride * 4 - output_width * sizeof(float);
// Adjustment for padding processed below
const float* i0 = (const float*) ((uintptr_t) input + input_height_stride * (output_y_start * 2 - input_padding_top));
const float* i1 = (const float*) ((uintptr_t) i0 + input_height_stride);
const float* i2 = (const float*) ((uintptr_t) i1 + input_height_stride);
const float* i3 = (const float*) ((uintptr_t) i2 + input_height_stride);
const float* i4 = (const float*) ((uintptr_t) i3 + input_height_stride);
float* output0 = (float*) ((uintptr_t) output + output_height_stride * output_y_start);
float* output1 = (float*) ((uintptr_t) output0 + output_height_stride);
if XNN_UNPREDICTABLE(output_y_start < input_padding_top) {
i0 = zero;
}
const float32x4_t vmin = vld1q_dup_f32(¶ms->scalar.min);
const float32x4_t vmax = vld1q_dup_f32(¶ms->scalar.max);
for (size_t output_y = output_y_start; output_y < output_y_end; output_y += 2) {
const size_t input_y2 = output_y * 2 + 2 - input_padding_top;
const size_t input_y4 = input_y2 + 2;
if XNN_UNPREDICTABLE(input_y2 >= input_height) {
i2 = zero;
}
if XNN_UNPREDICTABLE(input_y4 > input_height) {
i3 = zero;
}
if XNN_UNPREDICTABLE(input_y4 >= input_height) {
i4 = zero;
}
if XNN_UNPREDICTABLE(output_y + 2 > output_y_end) {
output1 = output0;
}
const float* w = weights;
size_t c = output_channels;
float* o0c0 = output0;
float* o1c0 = output1;
float* o0c1 = (float*) ((uintptr_t) o0c0 + output_channel_stride);
float* o1c1 = (float*) ((uintptr_t) o1c0 + output_channel_stride);
float* o0c2 = (float*) ((uintptr_t) o0c1 + output_channel_stride);
float* o1c2 = (float*) ((uintptr_t) o1c1 + output_channel_stride);
float* o0c3 = (float*) ((uintptr_t) o0c2 + output_channel_stride);
float* o1c3 = (float*) ((uintptr_t) o1c2 + output_channel_stride);
do {
if XNN_UNPREDICTABLE(c < 2) {
o0c1 = o0c0;
o1c1 = o1c0;
}
if XNN_UNPREDICTABLE(c <= 2) {
o0c2 = o0c1;
o1c2 = o1c1;
}
if XNN_UNPREDICTABLE(c < 4) {
o0c3 = o0c2;
o1c3 = o1c2;
}
// viMx0 = ( iM0c2, iM0c1, iM0c0, --- )
float32x4_t vi0x0 = vmovq_n_f32(0.0f);
float32x4_t vi1x0 = vmovq_n_f32(0.0f);
float32x4_t vi2x0 = vmovq_n_f32(0.0f);
float32x4_t vi3x0 = vmovq_n_f32(0.0f);
float32x4_t vi4x0 = vmovq_n_f32(0.0f);
size_t iw = input_width;
for (; iw >= 4; iw -= 4) {
float32x4_t vo0x0 = vld1q_f32(w);
float32x4_t vo1x0 = vo0x0;
float32x4_t vo0x1 = vo0x0;
float32x4_t vo1x1 = vo0x0;
const float32x4_t vk00c0 = vld1q_f32(w + 4);
// viMx1 = ( iM2c0, iM1c2, iM1c1, iM1c0 )
const float32x4_t vi0x1 = vld1q_f32(i0); i0 += 4;
const float32x4_t vi1x1 = vld1q_f32(i1); i1 += 4;
const float32x4_t vi2x1 = vld1q_f32(i2); i2 += 4;
const float32x4_t vi3x1 = vld1q_f32(i3); i3 += 4;
const float32x4_t vi4x1 = vld1q_f32(i4); i4 += 4;
vo0x0 = vmlaq_lane_f32(vo0x0, vk00c0, vget_low_f32(vi0x0), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk00c0, vget_low_f32(vi2x0), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk00c0, vget_high_f32(vi0x1), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk00c0, vget_high_f32(vi2x1), 1);
const float32x4_t vk10c0 = vld1q_f32(w + 8);
vo0x0 = vmlaq_lane_f32(vo0x0, vk10c0, vget_low_f32(vi1x0), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk10c0, vget_low_f32(vi3x0), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk10c0, vget_high_f32(vi1x1), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk10c0, vget_high_f32(vi3x1), 1);
const float32x4_t vk20c0 = vld1q_f32(w + 12);
vo0x0 = vmlaq_lane_f32(vo0x0, vk20c0, vget_low_f32(vi2x0), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk20c0, vget_low_f32(vi4x0), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk20c0, vget_high_f32(vi2x1), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk20c0, vget_high_f32(vi4x1), 1);
const float32x4_t vk00c1 = vld1q_f32(w + 16);
// viMx2 = ( iM3c1, iM3c0, iM2c2, iM2c1 )
const float32x4_t vi0x2 = vld1q_f32(i0); i0 += 4;
const float32x4_t vi1x2 = vld1q_f32(i1); i1 += 4;
const float32x4_t vi2x2 = vld1q_f32(i2); i2 += 4;
const float32x4_t vi3x2 = vld1q_f32(i3); i3 += 4;
const float32x4_t vi4x2 = vld1q_f32(i4); i4 += 4;
vo0x0 = vmlaq_lane_f32(vo0x0, vk00c1, vget_high_f32(vi0x0), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk00c1, vget_high_f32(vi2x0), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk00c1, vget_low_f32(vi0x2), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk00c1, vget_low_f32(vi2x2), 0);
const float32x4_t vk10c1 = vld1q_f32(w + 20);
vo0x0 = vmlaq_lane_f32(vo0x0, vk10c1, vget_high_f32(vi1x0), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk10c1, vget_high_f32(vi3x0), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk10c1, vget_low_f32(vi1x2), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk10c1, vget_low_f32(vi3x2), 0);
const float32x4_t vk20c1 = vld1q_f32(w + 24);
vo0x0 = vmlaq_lane_f32(vo0x0, vk20c1, vget_high_f32(vi2x0), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk20c1, vget_high_f32(vi4x0), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk20c1, vget_low_f32(vi2x2), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk20c1, vget_low_f32(vi4x2), 0);
const float32x4_t vk00c2 = vld1q_f32(w + 28);
vo0x0 = vmlaq_lane_f32(vo0x0, vk00c2, vget_high_f32(vi0x0), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk00c2, vget_high_f32(vi2x0), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk00c2, vget_low_f32(vi0x2), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk00c2, vget_low_f32(vi2x2), 1);
const float32x4_t vk10c2 = vld1q_f32(w + 32);
vo0x0 = vmlaq_lane_f32(vo0x0, vk10c2, vget_high_f32(vi1x0), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk10c2, vget_high_f32(vi3x0), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk10c2, vget_low_f32(vi1x2), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk10c2, vget_low_f32(vi3x2), 1);
const float32x4_t vk20c2 = vld1q_f32(w + 36);
vo0x0 = vmlaq_lane_f32(vo0x0, vk20c2, vget_high_f32(vi2x0), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk20c2, vget_high_f32(vi4x0), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk20c2, vget_low_f32(vi2x2), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk20c2, vget_low_f32(vi4x2), 1);
const float32x4_t vk01c0 = vld1q_f32(w + 40);
vo0x0 = vmlaq_lane_f32(vo0x0, vk01c0, vget_low_f32(vi0x1), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk01c0, vget_low_f32(vi2x1), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk01c0, vget_high_f32(vi0x2), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk01c0, vget_high_f32(vi2x2), 0);
const float32x4_t vk11c0 = vld1q_f32(w + 44);
vo0x0 = vmlaq_lane_f32(vo0x0, vk11c0, vget_low_f32(vi1x1), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk11c0, vget_low_f32(vi3x1), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk11c0, vget_high_f32(vi1x2), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk11c0, vget_high_f32(vi3x2), 0);
const float32x4_t vk21c0 = vld1q_f32(w + 48);
vo0x0 = vmlaq_lane_f32(vo0x0, vk21c0, vget_low_f32(vi2x1), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk21c0, vget_low_f32(vi4x1), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk21c0, vget_high_f32(vi2x2), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk21c0, vget_high_f32(vi4x2), 0);
const float32x4_t vk01c1 = vld1q_f32(w + 52);
vo0x0 = vmlaq_lane_f32(vo0x0, vk01c1, vget_low_f32(vi0x1), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk01c1, vget_low_f32(vi2x1), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk01c1, vget_high_f32(vi0x2), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk01c1, vget_high_f32(vi2x2), 1);
const float32x4_t vk11c1 = vld1q_f32(w + 56);
vo0x0 = vmlaq_lane_f32(vo0x0, vk11c1, vget_low_f32(vi1x1), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk11c1, vget_low_f32(vi3x1), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk11c1, vget_high_f32(vi1x2), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk11c1, vget_high_f32(vi3x2), 1);
const float32x4_t vk21c1 = vld1q_f32(w + 60);
vo0x0 = vmlaq_lane_f32(vo0x0, vk21c1, vget_low_f32(vi2x1), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk21c1, vget_low_f32(vi4x1), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk21c1, vget_high_f32(vi2x2), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk21c1, vget_high_f32(vi4x2), 1);
const float32x4_t vk01c2 = vld1q_f32(w + 64);
// viMx3 = ( iM4c2, iM4c1, iM4c0, iM3c2 )
const float32x4_t vi0x3 = vld1q_f32(i0); i0 += 4;
const float32x4_t vi1x3 = vld1q_f32(i1); i1 += 4;
const float32x4_t vi2x3 = vld1q_f32(i2); i2 += 4;
const float32x4_t vi3x3 = vld1q_f32(i3); i3 += 4;
const float32x4_t vi4x3 = vld1q_f32(i4); i4 += 4;
vo0x0 = vmlaq_lane_f32(vo0x0, vk01c2, vget_high_f32(vi0x1), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk01c2, vget_high_f32(vi2x1), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk01c2, vget_low_f32(vi0x3), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk01c2, vget_low_f32(vi2x3), 0);
const float32x4_t vk11c2 = vld1q_f32(w + 68);
vo0x0 = vmlaq_lane_f32(vo0x0, vk11c2, vget_high_f32(vi1x1), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk11c2, vget_high_f32(vi3x1), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk11c2, vget_low_f32(vi1x3), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk11c2, vget_low_f32(vi3x3), 0);
const float32x4_t vk21c2 = vld1q_f32(w + 72);
vo0x0 = vmlaq_lane_f32(vo0x0, vk21c2, vget_high_f32(vi2x1), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk21c2, vget_high_f32(vi4x1), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk21c2, vget_low_f32(vi2x3), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk21c2, vget_low_f32(vi4x3), 0);
const float32x4_t vk02c0 = vld1q_f32(w + 76);
vo0x0 = vmlaq_lane_f32(vo0x0, vk02c0, vget_high_f32(vi0x1), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk02c0, vget_high_f32(vi2x1), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk02c0, vget_low_f32(vi0x3), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk02c0, vget_low_f32(vi2x3), 1);
const float32x4_t vk12c0 = vld1q_f32(w + 80);
vo0x0 = vmlaq_lane_f32(vo0x0, vk12c0, vget_high_f32(vi1x1), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk12c0, vget_high_f32(vi3x1), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk12c0, vget_low_f32(vi1x3), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk12c0, vget_low_f32(vi3x3), 1);
const float32x4_t vk22c0 = vld1q_f32(w + 84);
vo0x0 = vmlaq_lane_f32(vo0x0, vk22c0, vget_high_f32(vi2x1), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk22c0, vget_high_f32(vi4x1), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk22c0, vget_low_f32(vi2x3), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk22c0, vget_low_f32(vi4x3), 1);
const float32x4_t vk02c1 = vld1q_f32(w + 88);
vo0x0 = vmlaq_lane_f32(vo0x0, vk02c1, vget_low_f32(vi0x2), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk02c1, vget_low_f32(vi2x2), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk02c1, vget_high_f32(vi0x3), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk02c1, vget_high_f32(vi2x3), 0);
const float32x4_t vk12c1 = vld1q_f32(w + 92);
vo0x0 = vmlaq_lane_f32(vo0x0, vk12c1, vget_low_f32(vi1x2), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk12c1, vget_low_f32(vi3x2), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk12c1, vget_high_f32(vi1x3), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk12c1, vget_high_f32(vi3x3), 0);
const float32x4_t vk22c1 = vld1q_f32(w + 96);
vo0x0 = vmlaq_lane_f32(vo0x0, vk22c1, vget_low_f32(vi2x2), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk22c1, vget_low_f32(vi4x2), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk22c1, vget_high_f32(vi2x3), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk22c1, vget_high_f32(vi4x3), 0);
const float32x4_t vk02c2 = vld1q_f32(w + 100);
vo0x0 = vmlaq_lane_f32(vo0x0, vk02c2, vget_low_f32(vi0x2), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk02c2, vget_low_f32(vi2x2), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk02c2, vget_high_f32(vi0x3), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk02c2, vget_high_f32(vi2x3), 1);
const float32x4_t vk12c2 = vld1q_f32(w + 104);
vo0x0 = vmlaq_lane_f32(vo0x0, vk12c2, vget_low_f32(vi1x2), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk12c2, vget_low_f32(vi3x2), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk12c2, vget_high_f32(vi1x3), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk12c2, vget_high_f32(vi3x3), 1);
const float32x4_t vk22c2 = vld1q_f32(w + 108);
vo0x0 = vmlaq_lane_f32(vo0x0, vk22c2, vget_low_f32(vi2x2), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk22c2, vget_low_f32(vi4x2), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk22c2, vget_high_f32(vi2x3), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk22c2, vget_high_f32(vi4x3), 1);
vi0x0 = vi0x3;
vi1x0 = vi1x3;
vi2x0 = vi2x3;
vi3x0 = vi3x3;
vi4x0 = vi4x3;
vo0x0 = vmaxq_f32(vo0x0, vmin);
vo1x0 = vmaxq_f32(vo1x0, vmin);
vo0x1 = vmaxq_f32(vo0x1, vmin);
vo1x1 = vmaxq_f32(vo1x1, vmin);
vo0x0 = vminq_f32(vo0x0, vmax);
vo1x0 = vminq_f32(vo1x0, vmax);
vo0x1 = vminq_f32(vo0x1, vmax);
vo1x1 = vminq_f32(vo1x1, vmax);
const float32x4x2_t vo0c0123 = vzipq_f32(vo0x0, vo0x1);
const float32x4x2_t vo1c0123 = vzipq_f32(vo1x0, vo1x1);
// Always 2+ output width elements remaining
vst1_f32(o1c0, vget_low_f32(vo1c0123.val[0])); o1c0 += 2;
vst1_f32(o1c1, vget_high_f32(vo1c0123.val[0])); o1c1 += 2;
vst1_f32(o1c2, vget_low_f32(vo1c0123.val[1])); o1c2 += 2;
vst1_f32(o1c3, vget_high_f32(vo1c0123.val[1])); o1c3 += 2;
vst1_f32(o0c0, vget_low_f32(vo0c0123.val[0])); o0c0 += 2;
vst1_f32(o0c1, vget_high_f32(vo0c0123.val[0])); o0c1 += 2;
vst1_f32(o0c2, vget_low_f32(vo0c0123.val[1])); o0c2 += 2;
vst1_f32(o0c3, vget_high_f32(vo0c0123.val[1])); o0c3 += 2;
}
assert(iw < 4);
if XNN_UNLIKELY(iw != 0) {
float32x4_t vo0x0 = vld1q_f32(w);
float32x4_t vo1x0 = vo0x0;
float32x4_t vo0x1 = vo0x0;
float32x4_t vo1x1 = vo0x0;
const float32x4_t vk00c0 = vld1q_f32(w + 4);
// viMx1 = ( iM2c0, iM1c2, iM1c1, iM1c0 )
float32x4_t vi0x1 = vld1q_f32(i0);
float32x4_t vi1x1 = vld1q_f32(i1);
float32x4_t vi2x1 = vld1q_f32(i2);
float32x4_t vi3x1 = vld1q_f32(i3);
float32x4_t vi4x1 = vld1q_f32(i4);
vo0x0 = vmlaq_lane_f32(vo0x0, vk00c0, vget_low_f32(vi0x0), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk00c0, vget_low_f32(vi2x0), 1);
if (iw > 2) {
vo0x1 = vmlaq_lane_f32(vo0x1, vk00c0, vget_high_f32(vi0x1), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk00c0, vget_high_f32(vi2x1), 1);
}
const float32x4_t vk10c0 = vld1q_f32(w + 8);
vo0x0 = vmlaq_lane_f32(vo0x0, vk10c0, vget_low_f32(vi1x0), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk10c0, vget_low_f32(vi3x0), 1);
if (iw > 2) {
vo0x1 = vmlaq_lane_f32(vo0x1, vk10c0, vget_high_f32(vi1x1), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk10c0, vget_high_f32(vi3x1), 1);
}
const float32x4_t vk20c0 = vld1q_f32(w + 12);
vo0x0 = vmlaq_lane_f32(vo0x0, vk20c0, vget_low_f32(vi2x0), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk20c0, vget_low_f32(vi4x0), 1);
if (iw > 2) {
vo0x1 = vmlaq_lane_f32(vo0x1, vk20c0, vget_high_f32(vi2x1), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk20c0, vget_high_f32(vi4x1), 1);
}
const float32x4_t vk00c1 = vld1q_f32(w + 16);
float32x4_t vi0x2 = vmovq_n_f32(0.0f);
float32x4_t vi1x2 = vmovq_n_f32(0.0f);
float32x4_t vi2x2 = vmovq_n_f32(0.0f);
float32x4_t vi3x2 = vmovq_n_f32(0.0f);
float32x4_t vi4x2 = vmovq_n_f32(0.0f);
if (iw >= 2) {
// viMx2 = ( iM3c1, iM3c0, iM2c2, iM2c1 )
vi0x2 = vld1q_f32(i0 + 4);
vi1x2 = vld1q_f32(i1 + 4);
vi2x2 = vld1q_f32(i2 + 4);
vi3x2 = vld1q_f32(i3 + 4);
vi4x2 = vld1q_f32(i4 + 4);
}
vo0x0 = vmlaq_lane_f32(vo0x0, vk00c1, vget_high_f32(vi0x0), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk00c1, vget_high_f32(vi2x0), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk00c1, vget_low_f32(vi0x2), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk00c1, vget_low_f32(vi2x2), 0);
const float32x4_t vk10c1 = vld1q_f32(w + 20);
vo0x0 = vmlaq_lane_f32(vo0x0, vk10c1, vget_high_f32(vi1x0), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk10c1, vget_high_f32(vi3x0), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk10c1, vget_low_f32(vi1x2), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk10c1, vget_low_f32(vi3x2), 0);
const float32x4_t vk20c1 = vld1q_f32(w + 24);
vo0x0 = vmlaq_lane_f32(vo0x0, vk20c1, vget_high_f32(vi2x0), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk20c1, vget_high_f32(vi4x0), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk20c1, vget_low_f32(vi2x2), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk20c1, vget_low_f32(vi4x2), 0);
const float32x4_t vk00c2 = vld1q_f32(w + 28);
vo0x0 = vmlaq_lane_f32(vo0x0, vk00c2, vget_high_f32(vi0x0), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk00c2, vget_high_f32(vi2x0), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk00c2, vget_low_f32(vi0x2), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk00c2, vget_low_f32(vi2x2), 1);
const float32x4_t vk10c2 = vld1q_f32(w + 32);
vo0x0 = vmlaq_lane_f32(vo0x0, vk10c2, vget_high_f32(vi1x0), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk10c2, vget_high_f32(vi3x0), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk10c2, vget_low_f32(vi1x2), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk10c2, vget_low_f32(vi3x2), 1);
const float32x4_t vk20c2 = vld1q_f32(w + 36);
vo0x0 = vmlaq_lane_f32(vo0x0, vk20c2, vget_high_f32(vi2x0), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk20c2, vget_high_f32(vi4x0), 1);
vo0x1 = vmlaq_lane_f32(vo0x1, vk20c2, vget_low_f32(vi2x2), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk20c2, vget_low_f32(vi4x2), 1);
const float32x4_t vk01c0 = vld1q_f32(w + 40);
vo0x0 = vmlaq_lane_f32(vo0x0, vk01c0, vget_low_f32(vi0x1), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk01c0, vget_low_f32(vi2x1), 0);
if (iw > 2) {
vo0x1 = vmlaq_lane_f32(vo0x1, vk01c0, vget_high_f32(vi0x2), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk01c0, vget_high_f32(vi2x2), 0);
}
const float32x4_t vk11c0 = vld1q_f32(w + 44);
vo0x0 = vmlaq_lane_f32(vo0x0, vk11c0, vget_low_f32(vi1x1), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk11c0, vget_low_f32(vi3x1), 0);
if (iw > 2) {
vo0x1 = vmlaq_lane_f32(vo0x1, vk11c0, vget_high_f32(vi1x2), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk11c0, vget_high_f32(vi3x2), 0);
}
const float32x4_t vk21c0 = vld1q_f32(w + 48);
vo0x0 = vmlaq_lane_f32(vo0x0, vk21c0, vget_low_f32(vi2x1), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk21c0, vget_low_f32(vi4x1), 0);
if (iw > 2) {
vo0x1 = vmlaq_lane_f32(vo0x1, vk21c0, vget_high_f32(vi2x2), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk21c0, vget_high_f32(vi4x2), 0);
}
const float32x4_t vk01c1 = vld1q_f32(w + 52);
vo0x0 = vmlaq_lane_f32(vo0x0, vk01c1, vget_low_f32(vi0x1), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk01c1, vget_low_f32(vi2x1), 1);
if (iw > 2) {
vo0x1 = vmlaq_lane_f32(vo0x1, vk01c1, vget_high_f32(vi0x2), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk01c1, vget_high_f32(vi2x2), 1);
}
const float32x4_t vk11c1 = vld1q_f32(w + 56);
vo0x0 = vmlaq_lane_f32(vo0x0, vk11c1, vget_low_f32(vi1x1), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk11c1, vget_low_f32(vi3x1), 1);
if (iw > 2) {
vo0x1 = vmlaq_lane_f32(vo0x1, vk11c1, vget_high_f32(vi1x2), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk11c1, vget_high_f32(vi3x2), 1);
}
const float32x4_t vk21c1 = vld1q_f32(w + 60);
vo0x0 = vmlaq_lane_f32(vo0x0, vk21c1, vget_low_f32(vi2x1), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk21c1, vget_low_f32(vi4x1), 1);
if (iw > 2) {
vo0x1 = vmlaq_lane_f32(vo0x1, vk21c1, vget_high_f32(vi2x2), 1);
vo1x1 = vmlaq_lane_f32(vo1x1, vk21c1, vget_high_f32(vi4x2), 1);
}
const float32x4_t vk01c2 = vld1q_f32(w + 64);
float32x4_t vi0x3 = vmovq_n_f32(0.0f);
float32x4_t vi1x3 = vmovq_n_f32(0.0f);
float32x4_t vi2x3 = vmovq_n_f32(0.0f);
float32x4_t vi3x3 = vmovq_n_f32(0.0f);
float32x4_t vi4x3 = vmovq_n_f32(0.0f);
if (iw > 2) {
// viMx3 = ( 0.0, 0.0, 0.0, iM3c2 )
vi0x3 = vld1q_lane_f32(i0 + 8, vi0x3, 0);
vi1x3 = vld1q_lane_f32(i1 + 8, vi1x3, 0);
vi2x3 = vld1q_lane_f32(i2 + 8, vi2x3, 0);
vi3x3 = vld1q_lane_f32(i3 + 8, vi3x3, 0);
vi4x3 = vld1q_lane_f32(i4 + 8, vi4x3, 0);
}
vo0x0 = vmlaq_lane_f32(vo0x0, vk01c2, vget_high_f32(vi0x1), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk01c2, vget_high_f32(vi2x1), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk01c2, vget_low_f32(vi0x3), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk01c2, vget_low_f32(vi2x3), 0);
const float32x4_t vk11c2 = vld1q_f32(w + 68);
vo0x0 = vmlaq_lane_f32(vo0x0, vk11c2, vget_high_f32(vi1x1), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk11c2, vget_high_f32(vi3x1), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk11c2, vget_low_f32(vi1x3), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk11c2, vget_low_f32(vi3x3), 0);
const float32x4_t vk21c2 = vld1q_f32(w + 72);
vo0x0 = vmlaq_lane_f32(vo0x0, vk21c2, vget_high_f32(vi2x1), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk21c2, vget_high_f32(vi4x1), 0);
vo0x1 = vmlaq_lane_f32(vo0x1, vk21c2, vget_low_f32(vi2x3), 0);
vo1x1 = vmlaq_lane_f32(vo1x1, vk21c2, vget_low_f32(vi4x3), 0);
if (iw >= 2) {
const float32x4_t vk02c0 = vld1q_f32(w + 76);
vo0x0 = vmlaq_lane_f32(vo0x0, vk02c0, vget_high_f32(vi0x1), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk02c0, vget_high_f32(vi2x1), 1);
const float32x4_t vk12c0 = vld1q_f32(w + 80);
vo0x0 = vmlaq_lane_f32(vo0x0, vk12c0, vget_high_f32(vi1x1), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk12c0, vget_high_f32(vi3x1), 1);
const float32x4_t vk22c0 = vld1q_f32(w + 84);
vo0x0 = vmlaq_lane_f32(vo0x0, vk22c0, vget_high_f32(vi2x1), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk22c0, vget_high_f32(vi4x1), 1);
const float32x4_t vk02c1 = vld1q_f32(w + 88);
vo0x0 = vmlaq_lane_f32(vo0x0, vk02c1, vget_low_f32(vi0x2), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk02c1, vget_low_f32(vi2x2), 0);
const float32x4_t vk12c1 = vld1q_f32(w + 92);
vo0x0 = vmlaq_lane_f32(vo0x0, vk12c1, vget_low_f32(vi1x2), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk12c1, vget_low_f32(vi3x2), 0);
const float32x4_t vk22c1 = vld1q_f32(w + 96);
vo0x0 = vmlaq_lane_f32(vo0x0, vk22c1, vget_low_f32(vi2x2), 0);
vo1x0 = vmlaq_lane_f32(vo1x0, vk22c1, vget_low_f32(vi4x2), 0);
const float32x4_t vk02c2 = vld1q_f32(w + 100);
vo0x0 = vmlaq_lane_f32(vo0x0, vk02c2, vget_low_f32(vi0x2), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk02c2, vget_low_f32(vi2x2), 1);
const float32x4_t vk12c2 = vld1q_f32(w + 104);
vo0x0 = vmlaq_lane_f32(vo0x0, vk12c2, vget_low_f32(vi1x2), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk12c2, vget_low_f32(vi3x2), 1);
const float32x4_t vk22c2 = vld1q_f32(w + 108);
vo0x0 = vmlaq_lane_f32(vo0x0, vk22c2, vget_low_f32(vi2x2), 1);
vo1x0 = vmlaq_lane_f32(vo1x0, vk22c2, vget_low_f32(vi4x2), 1);
}
vo0x0 = vmaxq_f32(vo0x0, vmin);
vo1x0 = vmaxq_f32(vo1x0, vmin);
vo0x1 = vmaxq_f32(vo0x1, vmin);
vo1x1 = vmaxq_f32(vo1x1, vmin);
vo0x0 = vminq_f32(vo0x0, vmax);
vo1x0 = vminq_f32(vo1x0, vmax);
vo0x1 = vminq_f32(vo0x1, vmax);
vo1x1 = vminq_f32(vo1x1, vmax);
if (iw == 3) {
// Exactly 2 output width elements remaining
const float32x4x2_t vo0c0123 = vzipq_f32(vo0x0, vo0x1);
const float32x4x2_t vo1c0123 = vzipq_f32(vo1x0, vo1x1);
vst1_f32(o1c0, vget_low_f32(vo1c0123.val[0])); o1c0 += 2;
vst1_f32(o1c1, vget_high_f32(vo1c0123.val[0])); o1c1 += 2;
vst1_f32(o1c2, vget_low_f32(vo1c0123.val[1])); o1c2 += 2;
vst1_f32(o1c3, vget_high_f32(vo1c0123.val[1])); o1c3 += 2;
vst1_f32(o0c0, vget_low_f32(vo0c0123.val[0])); o0c0 += 2;
vst1_f32(o0c1, vget_high_f32(vo0c0123.val[0])); o0c1 += 2;
vst1_f32(o0c2, vget_low_f32(vo0c0123.val[1])); o0c2 += 2;
vst1_f32(o0c3, vget_high_f32(vo0c0123.val[1])); o0c3 += 2;
} else {
// Exactly 1 output width element remaining
vst1q_lane_f32(o1c0, vo1x0, 0); o1c0 += 1;
vst1q_lane_f32(o1c1, vo1x0, 1); o1c1 += 1;
vst1q_lane_f32(o1c2, vo1x0, 2); o1c2 += 1;
vst1q_lane_f32(o1c3, vo1x0, 3); o1c3 += 1;
vst1q_lane_f32(o0c0, vo0x0, 0); o0c0 += 1;
vst1q_lane_f32(o0c1, vo0x0, 1); o0c1 += 1;
vst1q_lane_f32(o0c2, vo0x0, 2); o0c2 += 1;
vst1q_lane_f32(o0c3, vo0x0, 3); o0c3 += 1;
}
}
// Move output pointers back to the position of the first pixel in a row,
// and forward to the next block of output channels.
o0c0 = (float*) ((uintptr_t) o0c0 + output_channel_increment);
o0c1 = (float*) ((uintptr_t) o0c1 + output_channel_increment);
o0c2 = (float*) ((uintptr_t) o0c2 + output_channel_increment);
o0c3 = (float*) ((uintptr_t) o0c3 + output_channel_increment);
o1c0 = (float*) ((uintptr_t) o1c0 + output_channel_increment);
o1c1 = (float*) ((uintptr_t) o1c1 + output_channel_increment);
o1c2 = (float*) ((uintptr_t) o1c2 + output_channel_increment);
o1c3 = (float*) ((uintptr_t) o1c3 + output_channel_increment);
// Revert input pointers to the position of the first pixel in a row
i0 = (const float*) ((uintptr_t) i0 - input_width_increment);
i1 = (const float*) ((uintptr_t) i1 - input_width_increment);
i2 = (const float*) ((uintptr_t) i2 - input_width_increment);
i3 = (const float*) ((uintptr_t) i3 - input_width_increment);
i4 = (const float*) ((uintptr_t) i4 - input_width_increment);
// Move to the block of weights for the next 4 output channels
w += 112;
c = doz(c, 4);
} while (c != 0);
// Move output pointers forward to the next two rows
output0 = (float*) ((uintptr_t) output1 + output_height_stride);
output1 = (float*) ((uintptr_t) output0 + output_height_stride);
// Move input pointers forward to the next four rows
i0 = i4;
i1 = (const float*) ((uintptr_t) i0 + input_height_stride);
i2 = (const float*) ((uintptr_t) i1 + input_height_stride);
i3 = (const float*) ((uintptr_t) i2 + input_height_stride);
i4 = (const float*) ((uintptr_t) i3 + input_height_stride);
}
}
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