XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 1 | // Auto-generated file. Do not edit! |
| 2 | // Template: src/f32-igemm/scalar.c.in |
| 3 | // Generator: tools/xngen |
| 4 | // |
| 5 | // Copyright 2019 Google LLC |
| 6 | // |
| 7 | // This source code is licensed under the BSD-style license found in the |
| 8 | // LICENSE file in the root directory of this source tree. |
| 9 | |
| 10 | #include <assert.h> |
| 11 | |
| 12 | #include <xnnpack/igemm.h> |
| 13 | #include <xnnpack/math.h> |
| 14 | |
| 15 | |
| 16 | void xnn_f32_igemm_ukernel_2x4__scalar( |
| 17 | size_t mr, |
| 18 | size_t nc, |
| 19 | size_t kc, |
| 20 | size_t ks, |
| 21 | const float**restrict a, |
| 22 | const float*restrict w, |
| 23 | float*restrict c, |
| 24 | size_t cm_stride, |
| 25 | size_t cn_stride, |
| 26 | size_t a_offset, |
| 27 | const float* zero, |
| 28 | const union xnn_f32_output_params params[restrict static 1]) |
| 29 | { |
| 30 | assert(mr != 0); |
| 31 | assert(mr <= 2); |
| 32 | assert(nc != 0); |
| 33 | assert(kc != 0); |
| 34 | assert(kc % sizeof(float) == 0); |
| 35 | assert(ks != 0); |
| 36 | assert(ks % (2 * sizeof(void*)) == 0); |
| 37 | assert(a_offset % sizeof(float) == 0); |
Frank Barchard | 7ccaab6 | 2019-11-19 14:19:23 -0800 | [diff] [blame] | 38 | assert(a != NULL); |
| 39 | assert(w != NULL); |
| 40 | assert(c != NULL); |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 41 | |
| 42 | float* c0 = c; |
| 43 | float* c1 = (float*) ((uintptr_t) c0 + cm_stride); |
| 44 | if XNN_UNPREDICTABLE(mr != 2) { |
| 45 | c1 = c0; |
| 46 | } |
| 47 | |
| 48 | do { |
| 49 | float vacc00 = w[0]; |
| 50 | float vacc01 = w[1]; |
| 51 | float vacc02 = w[2]; |
| 52 | float vacc03 = w[3]; |
| 53 | float vacc10 = vacc00; |
| 54 | float vacc11 = vacc01; |
| 55 | float vacc12 = vacc02; |
| 56 | float vacc13 = vacc03; |
| 57 | w += 4; |
| 58 | |
| 59 | size_t p = ks; |
| 60 | do { |
| 61 | const float* restrict a0 = a[0]; |
Frank Barchard | 7ccaab6 | 2019-11-19 14:19:23 -0800 | [diff] [blame] | 62 | assert(a0 != NULL); |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 63 | if XNN_UNPREDICTABLE(a0 != zero) { |
| 64 | a0 = (const float*) ((uintptr_t) a0 + a_offset); |
| 65 | } |
| 66 | const float* restrict a1 = a[1]; |
Frank Barchard | 7ccaab6 | 2019-11-19 14:19:23 -0800 | [diff] [blame] | 67 | assert(a1 != NULL); |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 68 | if XNN_UNPREDICTABLE(a1 != zero) { |
| 69 | a1 = (const float*) ((uintptr_t) a1 + a_offset); |
| 70 | } |
| 71 | a += 2; |
| 72 | |
| 73 | size_t k = kc; |
| 74 | do { |
| 75 | const float va0 = *a0++; |
| 76 | const float va1 = *a1++; |
| 77 | |
| 78 | const float vb0 = w[0]; |
| 79 | const float vb1 = w[1]; |
| 80 | const float vb2 = w[2]; |
| 81 | const float vb3 = w[3]; |
| 82 | w += 4; |
| 83 | |
| 84 | vacc00 += va0 * vb0; |
| 85 | vacc01 += va0 * vb1; |
| 86 | vacc02 += va0 * vb2; |
| 87 | vacc03 += va0 * vb3; |
| 88 | vacc10 += va1 * vb0; |
| 89 | vacc11 += va1 * vb1; |
| 90 | vacc12 += va1 * vb2; |
| 91 | vacc13 += va1 * vb3; |
| 92 | |
| 93 | k -= sizeof(float); |
| 94 | } while (k != 0); |
| 95 | p -= 2 * sizeof(void*); |
| 96 | } while (p != 0); |
| 97 | |
| 98 | const float vmin = params->scalar.min; |
| 99 | vacc00 = math_max_f32(vacc00, vmin); |
| 100 | vacc01 = math_max_f32(vacc01, vmin); |
| 101 | vacc02 = math_max_f32(vacc02, vmin); |
| 102 | vacc03 = math_max_f32(vacc03, vmin); |
| 103 | vacc10 = math_max_f32(vacc10, vmin); |
| 104 | vacc11 = math_max_f32(vacc11, vmin); |
| 105 | vacc12 = math_max_f32(vacc12, vmin); |
| 106 | vacc13 = math_max_f32(vacc13, vmin); |
| 107 | |
| 108 | const float vmax = params->scalar.max; |
| 109 | vacc00 = math_min_f32(vacc00, vmax); |
| 110 | vacc01 = math_min_f32(vacc01, vmax); |
| 111 | vacc02 = math_min_f32(vacc02, vmax); |
| 112 | vacc03 = math_min_f32(vacc03, vmax); |
| 113 | vacc10 = math_min_f32(vacc10, vmax); |
| 114 | vacc11 = math_min_f32(vacc11, vmax); |
| 115 | vacc12 = math_min_f32(vacc12, vmax); |
| 116 | vacc13 = math_min_f32(vacc13, vmax); |
| 117 | |
| 118 | if XNN_LIKELY(nc >= 4) { |
| 119 | c1[0] = vacc10; |
| 120 | c1[1] = vacc11; |
| 121 | c1[2] = vacc12; |
| 122 | c1[3] = vacc13; |
| 123 | c1 = (float*) ((uintptr_t) c1 + cn_stride); |
| 124 | c0[0] = vacc00; |
| 125 | c0[1] = vacc01; |
| 126 | c0[2] = vacc02; |
| 127 | c0[3] = vacc03; |
| 128 | c0 = (float*) ((uintptr_t) c0 + cn_stride); |
| 129 | |
| 130 | a = (const float**restrict) ((uintptr_t) a - ks); |
| 131 | nc -= 4; |
| 132 | } else { |
| 133 | if (nc & 2) { |
| 134 | c1[0] = vacc10; |
| 135 | c1[1] = vacc11; |
| 136 | vacc10 = vacc12; |
| 137 | c1 += 2; |
| 138 | c0[0] = vacc00; |
| 139 | c0[1] = vacc01; |
| 140 | vacc00 = vacc02; |
| 141 | c0 += 2; |
| 142 | } |
| 143 | if (nc & 1) { |
| 144 | c1[0] = vacc10; |
| 145 | c0[0] = vacc00; |
| 146 | } |
| 147 | |
| 148 | nc = 0; |
| 149 | } |
| 150 | } while (nc != 0); |
| 151 | } |