Marat Dukhan | 80fc932 | 2019-09-29 21:06:36 -0700 | [diff] [blame^] | 1 | // Copyright 2019 Google LLC |
| 2 | // |
| 3 | // This source code is licensed under the BSD-style license found in the |
| 4 | // LICENSE file in the root directory of this source tree. |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 5 | |
| 6 | #include <assert.h> |
| 7 | |
| 8 | #include <arm_neon.h> |
| 9 | |
| 10 | #include <xnnpack/pavgpool.h> |
| 11 | |
| 12 | |
| 13 | void xnn_f32_pavgpool_ukernel_up9__neon( |
| 14 | size_t n, |
| 15 | size_t ks, |
| 16 | size_t kc, |
| 17 | const float** input, |
| 18 | const float* zero, |
| 19 | const float* multiplier, |
| 20 | float* output, |
| 21 | size_t input_increment, |
| 22 | size_t output_increment, |
| 23 | const union xnn_f32_output_params params[restrict static 1]) |
| 24 | { |
| 25 | assert(n != 0); |
| 26 | assert(ks != 0); |
| 27 | assert(ks <= 9); |
| 28 | assert(kc != 0); |
| 29 | |
| 30 | const float32x4_t voutput_min = vld1q_dup_f32(¶ms->scalar.min); |
| 31 | const float32x4_t voutput_max = vld1q_dup_f32(¶ms->scalar.max); |
| 32 | |
| 33 | do { |
| 34 | const float* i0 = input[0]; |
| 35 | const float* i1 = input[1]; |
| 36 | const float* i2 = input[2]; |
| 37 | const float* i3 = input[3]; |
| 38 | const float* i4 = input[4]; |
| 39 | const float* i5 = input[5]; |
| 40 | const float* i6 = input[6]; |
| 41 | const float* i7 = input[7]; |
| 42 | const float* i8 = input[8]; |
| 43 | input = (const float**) ((uintptr_t) input + input_increment); |
| 44 | if (ks < 2) { |
| 45 | i1 = zero; |
| 46 | } |
| 47 | if (ks <= 2) { |
| 48 | i2 = zero; |
| 49 | } |
| 50 | if (ks < 4) { |
| 51 | i3 = zero; |
| 52 | } |
| 53 | if (ks <= 4) { |
| 54 | i4 = zero; |
| 55 | } |
| 56 | if (ks < 6) { |
| 57 | i5 = zero; |
| 58 | } |
| 59 | if (ks <= 6) { |
| 60 | i6 = zero; |
| 61 | } |
| 62 | if (ks < 8) { |
| 63 | i7 = zero; |
| 64 | } |
| 65 | if (ks <= 8) { |
| 66 | i8 = zero; |
| 67 | } |
| 68 | |
| 69 | const float32x4_t vmultiplier = vld1q_dup_f32(multiplier); multiplier += 1; |
| 70 | |
| 71 | size_t k = kc; |
| 72 | while (k >= 4) { |
| 73 | const float32x4_t vi0 = vld1q_f32(i0); i0 += 4; |
| 74 | const float32x4_t vi1 = vld1q_f32(i1); i1 += 4; |
| 75 | const float32x4_t vi2 = vld1q_f32(i2); i2 += 4; |
| 76 | const float32x4_t vi3 = vld1q_f32(i3); i3 += 4; |
| 77 | const float32x4_t vi4 = vld1q_f32(i4); i4 += 4; |
| 78 | const float32x4_t vi5 = vld1q_f32(i5); i5 += 4; |
| 79 | const float32x4_t vi6 = vld1q_f32(i6); i6 += 4; |
| 80 | const float32x4_t vi7 = vld1q_f32(i7); i7 += 4; |
| 81 | const float32x4_t vi8 = vld1q_f32(i8); i8 += 4; |
| 82 | |
| 83 | const float32x4_t vsum01 = vaddq_f32(vi0, vi1); |
| 84 | const float32x4_t vsum23 = vaddq_f32(vi2, vi3); |
| 85 | const float32x4_t vsum45 = vaddq_f32(vi4, vi5); |
| 86 | const float32x4_t vsum67 = vaddq_f32(vi6, vi7); |
| 87 | const float32x4_t vsum018 = vaddq_f32(vsum01, vi8); |
| 88 | const float32x4_t vsum2345 = vaddq_f32(vsum23, vsum45); |
| 89 | const float32x4_t vsum01678 = vaddq_f32(vsum018, vsum67); |
| 90 | const float32x4_t vsum = vaddq_f32(vsum2345, vsum01678); |
| 91 | |
| 92 | float32x4_t vout = vmulq_f32(vsum, vmultiplier); |
| 93 | vout = vmaxq_f32(vout, voutput_min); |
| 94 | vout = vminq_f32(vout, voutput_max); |
| 95 | |
| 96 | vst1q_f32(output, vout); output += 4; |
| 97 | |
| 98 | k -= 4; |
| 99 | } |
| 100 | if (k != 0) { |
| 101 | const float32x4_t vi0 = vld1q_f32(i0); |
| 102 | const float32x4_t vi1 = vld1q_f32(i1); |
| 103 | const float32x4_t vi2 = vld1q_f32(i2); |
| 104 | const float32x4_t vi3 = vld1q_f32(i3); |
| 105 | const float32x4_t vi4 = vld1q_f32(i4); |
| 106 | const float32x4_t vi5 = vld1q_f32(i5); |
| 107 | const float32x4_t vi6 = vld1q_f32(i6); |
| 108 | const float32x4_t vi7 = vld1q_f32(i7); |
| 109 | const float32x4_t vi8 = vld1q_f32(i8); |
| 110 | |
| 111 | const float32x4_t vsum01 = vaddq_f32(vi0, vi1); |
| 112 | const float32x4_t vsum23 = vaddq_f32(vi2, vi3); |
| 113 | const float32x4_t vsum45 = vaddq_f32(vi4, vi5); |
| 114 | const float32x4_t vsum67 = vaddq_f32(vi6, vi7); |
| 115 | const float32x4_t vsum018 = vaddq_f32(vsum01, vi8); |
| 116 | const float32x4_t vsum2345 = vaddq_f32(vsum23, vsum45); |
| 117 | const float32x4_t vsum01678 = vaddq_f32(vsum018, vsum67); |
| 118 | const float32x4_t vsum = vaddq_f32(vsum2345, vsum01678); |
| 119 | |
| 120 | float32x4_t vout = vmulq_f32(vsum, vmultiplier); |
| 121 | vout = vmaxq_f32(vout, voutput_min); |
| 122 | vout = vminq_f32(vout, voutput_max); |
| 123 | |
| 124 | float32x2_t vout_lo = vget_low_f32(vout); |
| 125 | if (k & 2) { |
| 126 | vst1_f32(output, vout_lo); output += 2; |
| 127 | vout_lo = vget_high_f32(vout); |
| 128 | } |
| 129 | if (k & 1) { |
| 130 | vst1_lane_f32(output, vout_lo, 0); output += 1; |
| 131 | } |
| 132 | } |
| 133 | output = (float*) ((uintptr_t) output + output_increment); |
| 134 | } while (--n != 0); |
| 135 | } |