| // 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/gavgpool.h> |
| #include <xnnpack/math.h> |
| |
| |
| void xnn_f32_gavgpool_ukernel_mp7p7q__neon( |
| size_t m, |
| size_t n, |
| const float* input, |
| size_t input_stride, |
| const float* zero, |
| float* buffer, |
| float* output, |
| const union xnn_f32_avgpool_params params[restrict static 1]) |
| { |
| assert(m > 7); |
| assert(n != 0); |
| |
| const float* i0 = input; |
| const float* i1 = (const float*) ((uintptr_t) i0 + input_stride); |
| const float* i2 = (const float*) ((uintptr_t) i1 + input_stride); |
| const float* i3 = (const float*) ((uintptr_t) i2 + input_stride); |
| const float* i4 = (const float*) ((uintptr_t) i3 + input_stride); |
| const float* i5 = (const float*) ((uintptr_t) i4 + input_stride); |
| const float* i6 = (const float*) ((uintptr_t) i5 + input_stride); |
| const size_t packed_n = round_up_po2(n, 4); |
| const size_t input_increment = 7 * input_stride - packed_n * sizeof(float); |
| |
| float* b = buffer; |
| for (size_t k = 0; k < n; 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 vsum01 = vaddq_f32(vi0, vi1); |
| const float32x4_t vsum23 = vaddq_f32(vi2, vi3); |
| const float32x4_t vsum45 = vaddq_f32(vi4, vi5); |
| |
| const float32x4_t vsum016 = vaddq_f32(vsum01, vi6); |
| const float32x4_t vsum2345 = vaddq_f32(vsum23, vsum45); |
| |
| const float32x4_t vsum = vaddq_f32(vsum016, vsum2345); |
| |
| vst1q_f32(b, vsum); b += 4; |
| } |
| for (m -= 7; m > 7; m -= 7) { |
| b = buffer; |
| |
| i0 = (const float*) ((uintptr_t) i0 + input_increment); |
| i1 = (const float*) ((uintptr_t) i1 + input_increment); |
| i2 = (const float*) ((uintptr_t) i2 + input_increment); |
| i3 = (const float*) ((uintptr_t) i3 + input_increment); |
| i4 = (const float*) ((uintptr_t) i4 + input_increment); |
| i5 = (const float*) ((uintptr_t) i5 + input_increment); |
| i6 = (const float*) ((uintptr_t) i6 + input_increment); |
| |
| for (size_t k = 0; k < n; 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 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 vsum6a = vaddq_f32(vi6, vacc); |
| |
| const float32x4_t vsum0123 = vaddq_f32(vsum01, vsum23); |
| const float32x4_t vsum456a = vaddq_f32(vsum45, vsum6a); |
| |
| const float32x4_t vsum = vaddq_f32(vsum0123, vsum456a); |
| |
| vst1q_f32(b, vsum); b += 4; |
| } |
| } |
| |
| i0 = (const float*) ((uintptr_t) i0 + input_increment); |
| i1 = (const float*) ((uintptr_t) i1 + input_increment); |
| if (m < 2) { |
| i1 = zero; |
| } |
| i2 = (const float*) ((uintptr_t) i2 + input_increment); |
| if (m <= 2) { |
| i2 = zero; |
| } |
| i3 = (const float*) ((uintptr_t) i3 + input_increment); |
| if (m < 4) { |
| i3 = zero; |
| } |
| i4 = (const float*) ((uintptr_t) i4 + input_increment); |
| if (m <= 4) { |
| i4 = zero; |
| } |
| i5 = (const float*) ((uintptr_t) i5 + input_increment); |
| if (m < 6) { |
| i5 = zero; |
| } |
| i6 = (const float*) ((uintptr_t) i6 + input_increment); |
| if (m <= 6) { |
| i6 = zero; |
| } |
| const float32x4_t vmultiplier = vld1q_dup_f32(¶ms->scalar.multiplier); |
| const float32x4x2_t voutput_clamp = vld2q_dup_f32(¶ms->scalar.output_max); |
| |
| b = buffer; |
| while (n >= 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 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 vsum6a = vaddq_f32(vi6, vacc); |
| |
| const float32x4_t vsum0123 = vaddq_f32(vsum01, vsum23); |
| const float32x4_t vsum456a = vaddq_f32(vsum45, vsum6a); |
| |
| const float32x4_t vsum = vaddq_f32(vsum0123, vsum456a); |
| |
| float32x4_t vout = vmulq_f32(vsum, vmultiplier); |
| vout = vmaxq_f32(vout, voutput_clamp.val[1]); |
| vout = vminq_f32(vout, voutput_clamp.val[0]); |
| |
| vst1q_f32(output, vout); output += 4; |
| |
| n -= 4; |
| } |
| if (n != 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 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 vsum6a = vaddq_f32(vi6, vacc); |
| |
| const float32x4_t vsum0123 = vaddq_f32(vsum01, vsum23); |
| const float32x4_t vsum456a = vaddq_f32(vsum45, vsum6a); |
| |
| const float32x4_t vsum = vaddq_f32(vsum0123, vsum456a); |
| |
| float32x4_t vout = vmulq_f32(vsum, vmultiplier); |
| vout = vmaxq_f32(vout, voutput_clamp.val[1]); |
| vout = vminq_f32(vout, voutput_clamp.val[0]); |
| |
| float32x2_t vout_lo = vget_low_f32(vout); |
| if (n & 2) { |
| vst1_f32(output, vout_lo); output += 2; |
| vout_lo = vget_high_f32(vout); |
| } |
| if (n & 1) { |
| vst1_lane_f32(output, vout_lo, 0); |
| } |
| } |
| } |