1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-gemm/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_gemm_minmax_fp32_ukernel_3x4__scalar_imagic(size_t mr,size_t nc,size_t kc,const int8_t * restrict a,size_t a_stride,const void * restrict w,int8_t * restrict c,size_t cm_stride,size_t cn_stride,const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])16 void xnn_qs8_gemm_minmax_fp32_ukernel_3x4__scalar_imagic(
17 size_t mr,
18 size_t nc,
19 size_t kc,
20 const int8_t* restrict a,
21 size_t a_stride,
22 const void* restrict w,
23 int8_t* restrict c,
24 size_t cm_stride,
25 size_t cn_stride,
26 const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)])
27 {
28 assert(mr != 0);
29 assert(mr <= 3);
30 assert(nc != 0);
31 assert(kc != 0);
32
33 const int8_t* a0 = a;
34 int8_t* c0 = c;
35 const int8_t* a1 = (const int8_t*) ((uintptr_t) a0 + a_stride);
36 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
37 if XNN_UNPREDICTABLE(mr < 2) {
38 a1 = a0;
39 c1 = c0;
40 }
41 const int8_t* a2 = (const int8_t*) ((uintptr_t) a1 + a_stride);
42 int8_t* c2 = (int8_t*) ((uintptr_t) c1 + cm_stride);
43 if XNN_UNPREDICTABLE(mr <= 2) {
44 a2 = a1;
45 c2 = c1;
46 }
47
48 do {
49 int32_t vacc0x0 = ((const int32_t*) w)[0];
50 int32_t vacc0x1 = ((const int32_t*) w)[1];
51 int32_t vacc0x2 = ((const int32_t*) w)[2];
52 int32_t vacc0x3 = ((const int32_t*) w)[3];
53 int32_t vacc1x0 = vacc0x0;
54 int32_t vacc1x1 = vacc0x1;
55 int32_t vacc1x2 = vacc0x2;
56 int32_t vacc1x3 = vacc0x3;
57 int32_t vacc2x0 = vacc0x0;
58 int32_t vacc2x1 = vacc0x1;
59 int32_t vacc2x2 = vacc0x2;
60 int32_t vacc2x3 = vacc0x3;
61 w = (const void*) ((const int32_t*) w + 4);
62
63 size_t k = kc;
64 do {
65 const int32_t va0 = (int32_t) *a0++;
66 const int32_t va1 = (int32_t) *a1++;
67 const int32_t va2 = (int32_t) *a2++;
68
69 const int32_t vb0 = (int32_t) ((const int8_t*) w)[0];
70 const int32_t vb1 = (int32_t) ((const int8_t*) w)[1];
71 const int32_t vb2 = (int32_t) ((const int8_t*) w)[2];
72 const int32_t vb3 = (int32_t) ((const int8_t*) w)[3];
73 w = (const void*) ((const int8_t*) w + 4);
74
75 vacc0x0 += va0 * vb0;
76 vacc0x1 += va0 * vb1;
77 vacc0x2 += va0 * vb2;
78 vacc0x3 += va0 * vb3;
79 vacc1x0 += va1 * vb0;
80 vacc1x1 += va1 * vb1;
81 vacc1x2 += va1 * vb2;
82 vacc1x3 += va1 * vb3;
83 vacc2x0 += va2 * vb0;
84 vacc2x1 += va2 * vb1;
85 vacc2x2 += va2 * vb2;
86 vacc2x3 += va2 * vb3;
87
88 k -= sizeof(int8_t);
89 } while (k != 0);
90
91 float vfpacc0x0 = (float) vacc0x0;
92 float vfpacc0x1 = (float) vacc0x1;
93 float vfpacc0x2 = (float) vacc0x2;
94 float vfpacc0x3 = (float) vacc0x3;
95 float vfpacc1x0 = (float) vacc1x0;
96 float vfpacc1x1 = (float) vacc1x1;
97 float vfpacc1x2 = (float) vacc1x2;
98 float vfpacc1x3 = (float) vacc1x3;
99 float vfpacc2x0 = (float) vacc2x0;
100 float vfpacc2x1 = (float) vacc2x1;
101 float vfpacc2x2 = (float) vacc2x2;
102 float vfpacc2x3 = (float) vacc2x3;
103
104 const float vscale = params->fp32_scalar_imagic.scale;
105 vfpacc0x0 *= vscale;
106 vfpacc0x1 *= vscale;
107 vfpacc0x2 *= vscale;
108 vfpacc0x3 *= vscale;
109 vfpacc1x0 *= vscale;
110 vfpacc1x1 *= vscale;
111 vfpacc1x2 *= vscale;
112 vfpacc1x3 *= vscale;
113 vfpacc2x0 *= vscale;
114 vfpacc2x1 *= vscale;
115 vfpacc2x2 *= vscale;
116 vfpacc2x3 *= vscale;
117
118 const float vmagic_bias = params->fp32_scalar_imagic.magic_bias;
119 vfpacc0x0 += vmagic_bias;
120 vfpacc0x1 += vmagic_bias;
121 vfpacc0x2 += vmagic_bias;
122 vfpacc0x3 += vmagic_bias;
123 vfpacc1x0 += vmagic_bias;
124 vfpacc1x1 += vmagic_bias;
125 vfpacc1x2 += vmagic_bias;
126 vfpacc1x3 += vmagic_bias;
127 vfpacc2x0 += vmagic_bias;
128 vfpacc2x1 += vmagic_bias;
129 vfpacc2x2 += vmagic_bias;
130 vfpacc2x3 += vmagic_bias;
131
132 int32_t vout0x0 = (int32_t) float_as_uint32(vfpacc0x0);
133 int32_t vout0x1 = (int32_t) float_as_uint32(vfpacc0x1);
134 int32_t vout0x2 = (int32_t) float_as_uint32(vfpacc0x2);
135 int32_t vout0x3 = (int32_t) float_as_uint32(vfpacc0x3);
136 int32_t vout1x0 = (int32_t) float_as_uint32(vfpacc1x0);
137 int32_t vout1x1 = (int32_t) float_as_uint32(vfpacc1x1);
138 int32_t vout1x2 = (int32_t) float_as_uint32(vfpacc1x2);
139 int32_t vout1x3 = (int32_t) float_as_uint32(vfpacc1x3);
140 int32_t vout2x0 = (int32_t) float_as_uint32(vfpacc2x0);
141 int32_t vout2x1 = (int32_t) float_as_uint32(vfpacc2x1);
142 int32_t vout2x2 = (int32_t) float_as_uint32(vfpacc2x2);
143 int32_t vout2x3 = (int32_t) float_as_uint32(vfpacc2x3);
144
145 const int32_t vmagic_min = params->fp32_scalar_imagic.magic_min;
146 vout0x0 = math_max_s32(vout0x0, vmagic_min);
147 vout0x1 = math_max_s32(vout0x1, vmagic_min);
148 vout0x2 = math_max_s32(vout0x2, vmagic_min);
149 vout0x3 = math_max_s32(vout0x3, vmagic_min);
150 vout1x0 = math_max_s32(vout1x0, vmagic_min);
151 vout1x1 = math_max_s32(vout1x1, vmagic_min);
152 vout1x2 = math_max_s32(vout1x2, vmagic_min);
153 vout1x3 = math_max_s32(vout1x3, vmagic_min);
154 vout2x0 = math_max_s32(vout2x0, vmagic_min);
155 vout2x1 = math_max_s32(vout2x1, vmagic_min);
156 vout2x2 = math_max_s32(vout2x2, vmagic_min);
157 vout2x3 = math_max_s32(vout2x3, vmagic_min);
158
159 const int32_t vmagic_max = params->fp32_scalar_imagic.magic_max;
160 vout0x0 = math_min_s32(vout0x0, vmagic_max);
161 vout0x1 = math_min_s32(vout0x1, vmagic_max);
162 vout0x2 = math_min_s32(vout0x2, vmagic_max);
163 vout0x3 = math_min_s32(vout0x3, vmagic_max);
164 vout1x0 = math_min_s32(vout1x0, vmagic_max);
165 vout1x1 = math_min_s32(vout1x1, vmagic_max);
166 vout1x2 = math_min_s32(vout1x2, vmagic_max);
167 vout1x3 = math_min_s32(vout1x3, vmagic_max);
168 vout2x0 = math_min_s32(vout2x0, vmagic_max);
169 vout2x1 = math_min_s32(vout2x1, vmagic_max);
170 vout2x2 = math_min_s32(vout2x2, vmagic_max);
171 vout2x3 = math_min_s32(vout2x3, vmagic_max);
172
173 const int32_t vmagic_bias_less_zero_point = params->fp32_scalar_imagic.magic_bias_less_zero_point;
174 vout0x0 -= vmagic_bias_less_zero_point;
175 vout0x1 -= vmagic_bias_less_zero_point;
176 vout0x2 -= vmagic_bias_less_zero_point;
177 vout0x3 -= vmagic_bias_less_zero_point;
178 vout1x0 -= vmagic_bias_less_zero_point;
179 vout1x1 -= vmagic_bias_less_zero_point;
180 vout1x2 -= vmagic_bias_less_zero_point;
181 vout1x3 -= vmagic_bias_less_zero_point;
182 vout2x0 -= vmagic_bias_less_zero_point;
183 vout2x1 -= vmagic_bias_less_zero_point;
184 vout2x2 -= vmagic_bias_less_zero_point;
185 vout2x3 -= vmagic_bias_less_zero_point;
186
187 if XNN_LIKELY(nc >= 4) {
188 c0[0] = (int8_t) vout0x0;
189 c0[1] = (int8_t) vout0x1;
190 c0[2] = (int8_t) vout0x2;
191 c0[3] = (int8_t) vout0x3;
192 c1[0] = (int8_t) vout1x0;
193 c1[1] = (int8_t) vout1x1;
194 c1[2] = (int8_t) vout1x2;
195 c1[3] = (int8_t) vout1x3;
196 c2[0] = (int8_t) vout2x0;
197 c2[1] = (int8_t) vout2x1;
198 c2[2] = (int8_t) vout2x2;
199 c2[3] = (int8_t) vout2x3;
200
201 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
202 a1 = (const int8_t*) ((uintptr_t) a1 - kc);
203 a2 = (const int8_t*) ((uintptr_t) a2 - kc);
204
205 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
206 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
207 c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
208
209 nc -= 4;
210 } else {
211 if (nc & 2) {
212 c0[0] = (int8_t) vout0x0;
213 c0[1] = (int8_t) vout0x1;
214 vout0x0 = vout0x2;
215 c0 += 2;
216 c1[0] = (int8_t) vout1x0;
217 c1[1] = (int8_t) vout1x1;
218 vout1x0 = vout1x2;
219 c1 += 2;
220 c2[0] = (int8_t) vout2x0;
221 c2[1] = (int8_t) vout2x1;
222 vout2x0 = vout2x2;
223 c2 += 2;
224 }
225 if (nc & 1) {
226 c0[0] = (int8_t) vout0x0;
227 c1[0] = (int8_t) vout1x0;
228 c2[0] = (int8_t) vout2x0;
229 }
230
231 nc = 0;
232 }
233 } while (nc != 0);
234 }
235