1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-igemm/scalar.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2021 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/math.h>
13 #include <xnnpack/gemm.h>
14
15
xnn_qs8_igemm_minmax_fp32_ukernel_4x4__scalar_imagic(size_t mr,size_t nc,size_t kc,size_t ks,const int8_t ** restrict a,const void * restrict w,int8_t * restrict c,size_t cm_stride,size_t cn_stride,size_t a_offset,const int8_t * zero,const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])16 void xnn_qs8_igemm_minmax_fp32_ukernel_4x4__scalar_imagic(
17 size_t mr,
18 size_t nc,
19 size_t kc,
20 size_t ks,
21 const int8_t**restrict a,
22 const void*restrict w,
23 int8_t*restrict c,
24 size_t cm_stride,
25 size_t cn_stride,
26 size_t a_offset,
27 const int8_t* zero,
28 const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)])
29 {
30 assert(mr != 0);
31 assert(mr <= 4);
32 assert(nc != 0);
33 assert(kc != 0);
34 assert(ks != 0);
35 assert(ks % (4 * sizeof(void*)) == 0);
36 assert(a != NULL);
37 assert(w != NULL);
38 assert(c != NULL);
39
40 int8_t* c0 = c;
41 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
42 if XNN_UNPREDICTABLE(mr < 2) {
43 c1 = c0;
44 }
45 int8_t* c2 = (int8_t*) ((uintptr_t) c1 + cm_stride);
46 if XNN_UNPREDICTABLE(mr <= 2) {
47 c2 = c1;
48 }
49 int8_t* c3 = (int8_t*) ((uintptr_t) c2 + cm_stride);
50 if XNN_UNPREDICTABLE(mr != 4) {
51 c3 = c2;
52 }
53
54 do {
55 int32_t vacc0x0 = ((const int32_t*) w)[0];
56 int32_t vacc0x1 = ((const int32_t*) w)[1];
57 int32_t vacc0x2 = ((const int32_t*) w)[2];
58 int32_t vacc0x3 = ((const int32_t*) w)[3];
59 int32_t vacc1x0 = vacc0x0;
60 int32_t vacc1x1 = vacc0x1;
61 int32_t vacc1x2 = vacc0x2;
62 int32_t vacc1x3 = vacc0x3;
63 int32_t vacc2x0 = vacc0x0;
64 int32_t vacc2x1 = vacc0x1;
65 int32_t vacc2x2 = vacc0x2;
66 int32_t vacc2x3 = vacc0x3;
67 int32_t vacc3x0 = vacc0x0;
68 int32_t vacc3x1 = vacc0x1;
69 int32_t vacc3x2 = vacc0x2;
70 int32_t vacc3x3 = vacc0x3;
71 w = (const void*) ((const int32_t*) w + 4);
72
73 size_t p = ks;
74 do {
75 const int8_t* restrict a0 = a[0];
76 assert(a0 != NULL);
77 if XNN_UNPREDICTABLE(a0 != zero) {
78 a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
79 }
80 const int8_t* restrict a1 = a[1];
81 assert(a1 != NULL);
82 if XNN_UNPREDICTABLE(a1 != zero) {
83 a1 = (const int8_t*) ((uintptr_t) a1 + a_offset);
84 }
85 const int8_t* restrict a2 = a[2];
86 assert(a2 != NULL);
87 if XNN_UNPREDICTABLE(a2 != zero) {
88 a2 = (const int8_t*) ((uintptr_t) a2 + a_offset);
89 }
90 const int8_t* restrict a3 = a[3];
91 assert(a3 != NULL);
92 if XNN_UNPREDICTABLE(a3 != zero) {
93 a3 = (const int8_t*) ((uintptr_t) a3 + a_offset);
94 }
95 a += 4;
96
97 size_t k = kc;
98 do {
99 const int32_t va0 = (int32_t) *a0++;
100 const int32_t va1 = (int32_t) *a1++;
101 const int32_t va2 = (int32_t) *a2++;
102 const int32_t va3 = (int32_t) *a3++;
103
104 const int32_t vb0 = (int32_t) ((const int8_t*) w)[0];
105 const int32_t vb1 = (int32_t) ((const int8_t*) w)[1];
106 const int32_t vb2 = (int32_t) ((const int8_t*) w)[2];
107 const int32_t vb3 = (int32_t) ((const int8_t*) w)[3];
108 w = (const void*) ((const int8_t*) w + 4);
109
110 vacc0x0 += va0 * vb0;
111 vacc0x1 += va0 * vb1;
112 vacc0x2 += va0 * vb2;
113 vacc0x3 += va0 * vb3;
114 vacc1x0 += va1 * vb0;
115 vacc1x1 += va1 * vb1;
116 vacc1x2 += va1 * vb2;
117 vacc1x3 += va1 * vb3;
118 vacc2x0 += va2 * vb0;
119 vacc2x1 += va2 * vb1;
120 vacc2x2 += va2 * vb2;
121 vacc2x3 += va2 * vb3;
122 vacc3x0 += va3 * vb0;
123 vacc3x1 += va3 * vb1;
124 vacc3x2 += va3 * vb2;
125 vacc3x3 += va3 * vb3;
126
127 k -= sizeof(int8_t);
128 } while (k != 0);
129 p -= 4 * sizeof(void*);
130 } while (p != 0);
131
132 float vfpacc0x0 = (float) vacc0x0;
133 float vfpacc0x1 = (float) vacc0x1;
134 float vfpacc0x2 = (float) vacc0x2;
135 float vfpacc0x3 = (float) vacc0x3;
136 float vfpacc1x0 = (float) vacc1x0;
137 float vfpacc1x1 = (float) vacc1x1;
138 float vfpacc1x2 = (float) vacc1x2;
139 float vfpacc1x3 = (float) vacc1x3;
140 float vfpacc2x0 = (float) vacc2x0;
141 float vfpacc2x1 = (float) vacc2x1;
142 float vfpacc2x2 = (float) vacc2x2;
143 float vfpacc2x3 = (float) vacc2x3;
144 float vfpacc3x0 = (float) vacc3x0;
145 float vfpacc3x1 = (float) vacc3x1;
146 float vfpacc3x2 = (float) vacc3x2;
147 float vfpacc3x3 = (float) vacc3x3;
148
149 const float vscale = params->fp32_scalar_imagic.scale;
150 vfpacc0x0 *= vscale;
151 vfpacc0x1 *= vscale;
152 vfpacc0x2 *= vscale;
153 vfpacc0x3 *= vscale;
154 vfpacc1x0 *= vscale;
155 vfpacc1x1 *= vscale;
156 vfpacc1x2 *= vscale;
157 vfpacc1x3 *= vscale;
158 vfpacc2x0 *= vscale;
159 vfpacc2x1 *= vscale;
160 vfpacc2x2 *= vscale;
161 vfpacc2x3 *= vscale;
162 vfpacc3x0 *= vscale;
163 vfpacc3x1 *= vscale;
164 vfpacc3x2 *= vscale;
165 vfpacc3x3 *= vscale;
166
167 const float vmagic_bias = params->fp32_scalar_imagic.magic_bias;
168 vfpacc0x0 += vmagic_bias;
169 vfpacc0x1 += vmagic_bias;
170 vfpacc0x2 += vmagic_bias;
171 vfpacc0x3 += vmagic_bias;
172 vfpacc1x0 += vmagic_bias;
173 vfpacc1x1 += vmagic_bias;
174 vfpacc1x2 += vmagic_bias;
175 vfpacc1x3 += vmagic_bias;
176 vfpacc2x0 += vmagic_bias;
177 vfpacc2x1 += vmagic_bias;
178 vfpacc2x2 += vmagic_bias;
179 vfpacc2x3 += vmagic_bias;
180 vfpacc3x0 += vmagic_bias;
181 vfpacc3x1 += vmagic_bias;
182 vfpacc3x2 += vmagic_bias;
183 vfpacc3x3 += vmagic_bias;
184
185 int32_t vout0x0 = (int32_t) float_as_uint32(vfpacc0x0);
186 int32_t vout0x1 = (int32_t) float_as_uint32(vfpacc0x1);
187 int32_t vout0x2 = (int32_t) float_as_uint32(vfpacc0x2);
188 int32_t vout0x3 = (int32_t) float_as_uint32(vfpacc0x3);
189 int32_t vout1x0 = (int32_t) float_as_uint32(vfpacc1x0);
190 int32_t vout1x1 = (int32_t) float_as_uint32(vfpacc1x1);
191 int32_t vout1x2 = (int32_t) float_as_uint32(vfpacc1x2);
192 int32_t vout1x3 = (int32_t) float_as_uint32(vfpacc1x3);
193 int32_t vout2x0 = (int32_t) float_as_uint32(vfpacc2x0);
194 int32_t vout2x1 = (int32_t) float_as_uint32(vfpacc2x1);
195 int32_t vout2x2 = (int32_t) float_as_uint32(vfpacc2x2);
196 int32_t vout2x3 = (int32_t) float_as_uint32(vfpacc2x3);
197 int32_t vout3x0 = (int32_t) float_as_uint32(vfpacc3x0);
198 int32_t vout3x1 = (int32_t) float_as_uint32(vfpacc3x1);
199 int32_t vout3x2 = (int32_t) float_as_uint32(vfpacc3x2);
200 int32_t vout3x3 = (int32_t) float_as_uint32(vfpacc3x3);
201
202 const int32_t vmagic_min = params->fp32_scalar_imagic.magic_min;
203 vout0x0 = math_max_s32(vout0x0, vmagic_min);
204 vout0x1 = math_max_s32(vout0x1, vmagic_min);
205 vout0x2 = math_max_s32(vout0x2, vmagic_min);
206 vout0x3 = math_max_s32(vout0x3, vmagic_min);
207 vout1x0 = math_max_s32(vout1x0, vmagic_min);
208 vout1x1 = math_max_s32(vout1x1, vmagic_min);
209 vout1x2 = math_max_s32(vout1x2, vmagic_min);
210 vout1x3 = math_max_s32(vout1x3, vmagic_min);
211 vout2x0 = math_max_s32(vout2x0, vmagic_min);
212 vout2x1 = math_max_s32(vout2x1, vmagic_min);
213 vout2x2 = math_max_s32(vout2x2, vmagic_min);
214 vout2x3 = math_max_s32(vout2x3, vmagic_min);
215 vout3x0 = math_max_s32(vout3x0, vmagic_min);
216 vout3x1 = math_max_s32(vout3x1, vmagic_min);
217 vout3x2 = math_max_s32(vout3x2, vmagic_min);
218 vout3x3 = math_max_s32(vout3x3, vmagic_min);
219
220 const int32_t vmagic_max = params->fp32_scalar_imagic.magic_max;
221 vout0x0 = math_min_s32(vout0x0, vmagic_max);
222 vout0x1 = math_min_s32(vout0x1, vmagic_max);
223 vout0x2 = math_min_s32(vout0x2, vmagic_max);
224 vout0x3 = math_min_s32(vout0x3, vmagic_max);
225 vout1x0 = math_min_s32(vout1x0, vmagic_max);
226 vout1x1 = math_min_s32(vout1x1, vmagic_max);
227 vout1x2 = math_min_s32(vout1x2, vmagic_max);
228 vout1x3 = math_min_s32(vout1x3, vmagic_max);
229 vout2x0 = math_min_s32(vout2x0, vmagic_max);
230 vout2x1 = math_min_s32(vout2x1, vmagic_max);
231 vout2x2 = math_min_s32(vout2x2, vmagic_max);
232 vout2x3 = math_min_s32(vout2x3, vmagic_max);
233 vout3x0 = math_min_s32(vout3x0, vmagic_max);
234 vout3x1 = math_min_s32(vout3x1, vmagic_max);
235 vout3x2 = math_min_s32(vout3x2, vmagic_max);
236 vout3x3 = math_min_s32(vout3x3, vmagic_max);
237
238 const int32_t vmagic_bias_less_zero_point = params->fp32_scalar_imagic.magic_bias_less_zero_point;
239 vout0x0 -= vmagic_bias_less_zero_point;
240 vout0x1 -= vmagic_bias_less_zero_point;
241 vout0x2 -= vmagic_bias_less_zero_point;
242 vout0x3 -= vmagic_bias_less_zero_point;
243 vout1x0 -= vmagic_bias_less_zero_point;
244 vout1x1 -= vmagic_bias_less_zero_point;
245 vout1x2 -= vmagic_bias_less_zero_point;
246 vout1x3 -= vmagic_bias_less_zero_point;
247 vout2x0 -= vmagic_bias_less_zero_point;
248 vout2x1 -= vmagic_bias_less_zero_point;
249 vout2x2 -= vmagic_bias_less_zero_point;
250 vout2x3 -= vmagic_bias_less_zero_point;
251 vout3x0 -= vmagic_bias_less_zero_point;
252 vout3x1 -= vmagic_bias_less_zero_point;
253 vout3x2 -= vmagic_bias_less_zero_point;
254 vout3x3 -= vmagic_bias_less_zero_point;
255
256 if XNN_LIKELY(nc >= 4) {
257 c3[0] = (int8_t) vout3x0;
258 c3[1] = (int8_t) vout3x1;
259 c3[2] = (int8_t) vout3x2;
260 c3[3] = (int8_t) vout3x3;
261 c2[0] = (int8_t) vout2x0;
262 c2[1] = (int8_t) vout2x1;
263 c2[2] = (int8_t) vout2x2;
264 c2[3] = (int8_t) vout2x3;
265 c1[0] = (int8_t) vout1x0;
266 c1[1] = (int8_t) vout1x1;
267 c1[2] = (int8_t) vout1x2;
268 c1[3] = (int8_t) vout1x3;
269 c0[0] = (int8_t) vout0x0;
270 c0[1] = (int8_t) vout0x1;
271 c0[2] = (int8_t) vout0x2;
272 c0[3] = (int8_t) vout0x3;
273
274 c3 = (int8_t*) ((uintptr_t) c3 + cn_stride);
275 c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
276 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
277 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
278
279 a = (const int8_t**restrict) ((uintptr_t) a - ks);
280 nc -= 4;
281 } else {
282 if (nc & 2) {
283 c3[0] = (int8_t) vout3x0;
284 c3[1] = (int8_t) vout3x1;
285 vout3x0 = vout3x2;
286 c3 += 2;
287 c2[0] = (int8_t) vout2x0;
288 c2[1] = (int8_t) vout2x1;
289 vout2x0 = vout2x2;
290 c2 += 2;
291 c1[0] = (int8_t) vout1x0;
292 c1[1] = (int8_t) vout1x1;
293 vout1x0 = vout1x2;
294 c1 += 2;
295 c0[0] = (int8_t) vout0x0;
296 c0[1] = (int8_t) vout0x1;
297 vout0x0 = vout0x2;
298 c0 += 2;
299 }
300 if (nc & 1) {
301 c3[0] = (int8_t) vout3x0;
302 c2[0] = (int8_t) vout2x0;
303 c1[0] = (int8_t) vout1x0;
304 c0[0] = (int8_t) vout0x0;
305 }
306
307 nc = 0;
308 }
309 } while (nc != 0);
310 }
311