| // 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 <arm_neon.h> |
| |
| #include <xnnpack/avgpool.h> |
| |
| |
| void xnn_f32_avgpool_ukernel_mp9p8q__neon( |
| size_t n, |
| size_t ks, |
| size_t kc, |
| const float** input, |
| const float* zero, |
| float* buffer, |
| float* output, |
| size_t input_increment, |
| size_t output_increment, |
| const union xnn_f32_avgpool_params params[restrict static 1]) |
| { |
| assert(n != 0); |
| assert(ks > 9); |
| assert(kc != 0); |
| |
| const float32x4_t vmultiplier = vld1q_dup_f32(¶ms->scalar.multiplier); |
| const float32x4_t voutput_min = vld1q_dup_f32(¶ms->scalar.output_min); |
| const float32x4_t voutput_max = vld1q_dup_f32(¶ms->scalar.output_max); |
| |
| do { |
| { |
| 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++; |
| |
| float* b = buffer; |
| for (size_t k = 0; k < kc; k += 4) { |
| const float32x4_t vi0 = vld1q_f32(i0); i0 += 4; |
| const float32x4_t vi1 = vld1q_f32(i1); i1 += 4; |
| const float32x4_t vi2 = vld1q_f32(i2); i2 += 4; |
| const float32x4_t vi3 = vld1q_f32(i3); i3 += 4; |
| const float32x4_t vi4 = vld1q_f32(i4); i4 += 4; |
| const float32x4_t vi5 = vld1q_f32(i5); i5 += 4; |
| const float32x4_t vi6 = vld1q_f32(i6); i6 += 4; |
| const float32x4_t vi7 = vld1q_f32(i7); i7 += 4; |
| const float32x4_t vi8 = vld1q_f32(i8); i8 += 4; |
| |
| const float32x4_t vsum01 = vaddq_f32(vi0, vi1); |
| const float32x4_t vsum23 = vaddq_f32(vi2, vi3); |
| const float32x4_t vsum45 = vaddq_f32(vi4, vi5); |
| const float32x4_t vsum67 = vaddq_f32(vi6, vi7); |
| const float32x4_t vsum018 = vaddq_f32(vsum01, vi8); |
| const float32x4_t vsum2345 = vaddq_f32(vsum23, vsum45); |
| const float32x4_t vsum01678 = vaddq_f32(vsum018, vsum67); |
| const float32x4_t vsum = vaddq_f32(vsum2345, vsum01678); |
| |
| vst1q_f32(b, vsum); b += 4; |
| } |
| } |
| |
| size_t m = ks; |
| for (m -= 9; m > 8; m -= 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++; |
| |
| float* b = buffer; |
| for (size_t k = 0; k < kc; k += 4) { |
| const float32x4_t vi0 = vld1q_f32(i0); i0 += 4; |
| const float32x4_t vi1 = vld1q_f32(i1); i1 += 4; |
| const float32x4_t vi2 = vld1q_f32(i2); i2 += 4; |
| const float32x4_t vi3 = vld1q_f32(i3); i3 += 4; |
| const float32x4_t vi4 = vld1q_f32(i4); i4 += 4; |
| const float32x4_t vi5 = vld1q_f32(i5); i5 += 4; |
| const float32x4_t vi6 = vld1q_f32(i6); i6 += 4; |
| const float32x4_t vi7 = vld1q_f32(i7); i7 += 4; |
| const float32x4_t vacc = vld1q_f32(b); |
| |
| const float32x4_t vsum01 = vaddq_f32(vi0, vi1); |
| const float32x4_t vsum23 = vaddq_f32(vi2, vi3); |
| const float32x4_t vsum45 = vaddq_f32(vi4, vi5); |
| const float32x4_t vsum67 = vaddq_f32(vi6, vi7); |
| const float32x4_t vsum01a = vaddq_f32(vsum01, vacc); |
| const float32x4_t vsum2345 = vaddq_f32(vsum23, vsum45); |
| const float32x4_t vsum0167a = vaddq_f32(vsum01a, vsum67); |
| const float32x4_t vsum = vaddq_f32(vsum2345, vsum0167a); |
| |
| vst1q_f32(b, vsum); b += 4; |
| } |
| } |
| |
| { |
| 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]; |
| input = (const float**) ((uintptr_t) input + input_increment); |
| if (m < 2) { |
| i1 = zero; |
| } |
| if (m <= 2) { |
| i2 = zero; |
| } |
| if (m < 4) { |
| i3 = zero; |
| } |
| if (m <= 4) { |
| i4 = zero; |
| } |
| if (m < 6) { |
| i5 = zero; |
| } |
| if (m <= 6) { |
| i6 = zero; |
| } |
| if (m != 8) { |
| i7 = zero; |
| } |
| |
| size_t k = kc; |
| float* b = buffer; |
| while (k >= 4) { |
| const float32x4_t vi0 = vld1q_f32(i0); i0 += 4; |
| const float32x4_t vi1 = vld1q_f32(i1); i1 += 4; |
| const float32x4_t vi2 = vld1q_f32(i2); i2 += 4; |
| const float32x4_t vi3 = vld1q_f32(i3); i3 += 4; |
| const float32x4_t vi4 = vld1q_f32(i4); i4 += 4; |
| const float32x4_t vi5 = vld1q_f32(i5); i5 += 4; |
| const float32x4_t vi6 = vld1q_f32(i6); i6 += 4; |
| const float32x4_t vi7 = vld1q_f32(i7); i7 += 4; |
| const float32x4_t vacc = vld1q_f32(b); b += 4; |
| |
| const float32x4_t vsum01 = vaddq_f32(vi0, vi1); |
| const float32x4_t vsum23 = vaddq_f32(vi2, vi3); |
| const float32x4_t vsum45 = vaddq_f32(vi4, vi5); |
| const float32x4_t vsum67 = vaddq_f32(vi6, vi7); |
| const float32x4_t vsum01a = vaddq_f32(vsum01, vacc); |
| const float32x4_t vsum2345 = vaddq_f32(vsum23, vsum45); |
| const float32x4_t vsum0167a = vaddq_f32(vsum01a, vsum67); |
| const float32x4_t vsum = vaddq_f32(vsum2345, vsum0167a); |
| |
| float32x4_t vout = vmulq_f32(vsum, vmultiplier); |
| vout = vmaxq_f32(vout, voutput_min); |
| vout = vminq_f32(vout, voutput_max); |
| |
| vst1q_f32(output, vout); output += 4; |
| |
| k -= 4; |
| } |
| if (k != 0) { |
| const float32x4_t vi0 = vld1q_f32(i0); |
| const float32x4_t vi1 = vld1q_f32(i1); |
| const float32x4_t vi2 = vld1q_f32(i2); |
| const float32x4_t vi3 = vld1q_f32(i3); |
| const float32x4_t vi4 = vld1q_f32(i4); |
| const float32x4_t vi5 = vld1q_f32(i5); |
| const float32x4_t vi6 = vld1q_f32(i6); |
| const float32x4_t vi7 = vld1q_f32(i7); |
| const float32x4_t vacc = vld1q_f32(b); |
| |
| const float32x4_t vsum01 = vaddq_f32(vi0, vi1); |
| const float32x4_t vsum23 = vaddq_f32(vi2, vi3); |
| const float32x4_t vsum45 = vaddq_f32(vi4, vi5); |
| const float32x4_t vsum67 = vaddq_f32(vi6, vi7); |
| const float32x4_t vsum01a = vaddq_f32(vsum01, vacc); |
| const float32x4_t vsum2345 = vaddq_f32(vsum23, vsum45); |
| const float32x4_t vsum0167a = vaddq_f32(vsum01a, vsum67); |
| const float32x4_t vsum = vaddq_f32(vsum2345, vsum0167a); |
| |
| float32x4_t vout = vmulq_f32(vsum, vmultiplier); |
| vout = vmaxq_f32(vout, voutput_min); |
| vout = vminq_f32(vout, voutput_max); |
| |
| float32x2_t vout_lo = vget_low_f32(vout); |
| if (k & 2) { |
| vst1_f32(output, vout_lo); output += 2; |
| vout_lo = vget_high_f32(vout); |
| } |
| if (k & 1) { |
| vst1_lane_f32(output, vout_lo, 0); output += 1; |
| } |
| } |
| } |
| output = (float*) ((uintptr_t) output + output_increment); |
| } while (--n != 0); |
| } |