XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 1 | // Auto-generated file. Do not edit! |
| 2 | // Template: src/f32-gemm/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/gemm.h> |
| 13 | #include <xnnpack/math.h> |
| 14 | |
| 15 | |
| 16 | void xnn_f32_gemm_ukernel_4x2__scalar( |
| 17 | size_t mr, |
| 18 | size_t nc, |
| 19 | size_t kc, |
| 20 | const float* restrict a, |
| 21 | size_t a_stride, |
| 22 | const float* restrict w, |
| 23 | float* restrict c, |
| 24 | size_t cm_stride, |
| 25 | size_t cn_stride, |
Marat Dukhan | eb09a6b | 2020-04-08 17:34:32 -0700 | [diff] [blame] | 26 | const union xnn_f32_minmax_params params[restrict static 1]) |
XNNPACK Team | b455b12 | 2019-09-27 18:10:33 -0700 | [diff] [blame] | 27 | { |
| 28 | assert(mr != 0); |
| 29 | assert(mr <= 4); |
| 30 | assert(nc != 0); |
| 31 | assert(kc != 0); |
| 32 | assert(kc % sizeof(float) == 0); |
| 33 | assert(a != NULL); |
| 34 | assert(w != NULL); |
| 35 | assert(c != NULL); |
| 36 | |
| 37 | const float* a0 = a; |
| 38 | float* c0 = c; |
| 39 | const float* a1 = (const float*) ((uintptr_t) a0 + a_stride); |
| 40 | float* c1 = (float*) ((uintptr_t) c0 + cm_stride); |
| 41 | if XNN_UNPREDICTABLE(mr < 2) { |
| 42 | a1 = a0; |
| 43 | c1 = c0; |
| 44 | } |
| 45 | const float* a2 = (const float*) ((uintptr_t) a1 + a_stride); |
| 46 | float* c2 = (float*) ((uintptr_t) c1 + cm_stride); |
| 47 | if XNN_UNPREDICTABLE(mr <= 2) { |
| 48 | a2 = a1; |
| 49 | c2 = c1; |
| 50 | } |
| 51 | const float* a3 = (const float*) ((uintptr_t) a2 + a_stride); |
| 52 | float* c3 = (float*) ((uintptr_t) c2 + cm_stride); |
| 53 | if XNN_UNPREDICTABLE(mr != 4) { |
| 54 | a3 = a2; |
| 55 | c3 = c2; |
| 56 | } |
| 57 | |
| 58 | do { |
| 59 | float vacc00 = w[0]; |
| 60 | float vacc01 = w[1]; |
| 61 | w += 2; |
| 62 | float vacc10 = vacc00; |
| 63 | float vacc11 = vacc01; |
| 64 | float vacc20 = vacc00; |
| 65 | float vacc21 = vacc01; |
| 66 | float vacc30 = vacc00; |
| 67 | float vacc31 = vacc01; |
| 68 | |
| 69 | size_t k = kc; |
| 70 | do { |
| 71 | const float va0 = *a0++; |
| 72 | const float va1 = *a1++; |
| 73 | const float va2 = *a2++; |
| 74 | const float va3 = *a3++; |
| 75 | |
| 76 | const float vb0 = w[0]; |
| 77 | const float vb1 = w[1]; |
| 78 | w += 2; |
| 79 | |
| 80 | vacc00 += va0 * vb0; |
| 81 | vacc01 += va0 * vb1; |
| 82 | vacc10 += va1 * vb0; |
| 83 | vacc11 += va1 * vb1; |
| 84 | vacc20 += va2 * vb0; |
| 85 | vacc21 += va2 * vb1; |
| 86 | vacc30 += va3 * vb0; |
| 87 | vacc31 += va3 * vb1; |
| 88 | |
| 89 | k -= sizeof(float); |
| 90 | } while (k != 0); |
| 91 | |
| 92 | const float vmin = params->scalar.min; |
| 93 | vacc00 = math_max_f32(vacc00, vmin); |
| 94 | vacc01 = math_max_f32(vacc01, vmin); |
| 95 | vacc10 = math_max_f32(vacc10, vmin); |
| 96 | vacc11 = math_max_f32(vacc11, vmin); |
| 97 | vacc20 = math_max_f32(vacc20, vmin); |
| 98 | vacc21 = math_max_f32(vacc21, vmin); |
| 99 | vacc30 = math_max_f32(vacc30, vmin); |
| 100 | vacc31 = math_max_f32(vacc31, vmin); |
| 101 | |
| 102 | const float vmax = params->scalar.max; |
| 103 | vacc00 = math_min_f32(vacc00, vmax); |
| 104 | vacc01 = math_min_f32(vacc01, vmax); |
| 105 | vacc10 = math_min_f32(vacc10, vmax); |
| 106 | vacc11 = math_min_f32(vacc11, vmax); |
| 107 | vacc20 = math_min_f32(vacc20, vmax); |
| 108 | vacc21 = math_min_f32(vacc21, vmax); |
| 109 | vacc30 = math_min_f32(vacc30, vmax); |
| 110 | vacc31 = math_min_f32(vacc31, vmax); |
| 111 | |
| 112 | if XNN_LIKELY(nc >= 2) { |
| 113 | c3[0] = vacc30; |
| 114 | c3[1] = vacc31; |
| 115 | c3 = (float*) ((uintptr_t) c3 + cn_stride); |
| 116 | c2[0] = vacc20; |
| 117 | c2[1] = vacc21; |
| 118 | c2 = (float*) ((uintptr_t) c2 + cn_stride); |
| 119 | c1[0] = vacc10; |
| 120 | c1[1] = vacc11; |
| 121 | c1 = (float*) ((uintptr_t) c1 + cn_stride); |
| 122 | c0[0] = vacc00; |
| 123 | c0[1] = vacc01; |
| 124 | c0 = (float*) ((uintptr_t) c0 + cn_stride); |
| 125 | |
| 126 | a3 = (const void*) ((uintptr_t) a3 - kc); |
| 127 | a2 = (const void*) ((uintptr_t) a2 - kc); |
| 128 | a1 = (const void*) ((uintptr_t) a1 - kc); |
| 129 | a0 = (const void*) ((uintptr_t) a0 - kc); |
| 130 | |
| 131 | nc -= 2; |
| 132 | } else { |
| 133 | if (nc & 1) { |
| 134 | c3[0] = vacc30; |
| 135 | c2[0] = vacc20; |
| 136 | c1[0] = vacc10; |
| 137 | c0[0] = vacc00; |
| 138 | } |
| 139 | |
| 140 | nc = 0; |
| 141 | } |
| 142 | } while (nc != 0); |
| 143 | } |