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
xnn_f32_igemm_ukernel_4x4__wasm(size_t mr,size_t nc,size_t kc,size_t ks,const float ** restrict a,const float * restrict w,float * restrict c,size_t cm_stride,size_t cn_stride,size_t a_offset,const float * zero,const union xnn_f32_default_params params[restrict XNN_MIN_ELEMENTS (1)])16 void xnn_f32_igemm_ukernel_4x4__wasm(
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_default_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(kc % sizeof(float) == 0);
35 assert(ks != 0);
36 assert(ks % (4 * sizeof(void*)) == 0);
37 assert(a_offset % sizeof(float) == 0);
38 assert(a != NULL);
39 assert(w != NULL);
40 assert(c != NULL);
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 float* c2 = (float*) ((uintptr_t) c1 + cm_stride);
48 if XNN_UNPREDICTABLE(mr <= 2) {
49 c2 = c1;
50 }
51 float* c3 = (float*) ((uintptr_t) c2 + cm_stride);
52 if XNN_UNPREDICTABLE(mr != 4) {
53 c3 = c2;
54 }
55
56 do {
57 float vacc00 = w[0];
58 float vacc01 = w[1];
59 float vacc02 = w[2];
60 float vacc03 = w[3];
61 float vacc10 = vacc00;
62 float vacc11 = vacc01;
63 float vacc12 = vacc02;
64 float vacc13 = vacc03;
65 float vacc20 = vacc00;
66 float vacc21 = vacc01;
67 float vacc22 = vacc02;
68 float vacc23 = vacc03;
69 float vacc30 = vacc00;
70 float vacc31 = vacc01;
71 float vacc32 = vacc02;
72 float vacc33 = vacc03;
73 w += 4;
74
75 size_t p = ks;
76 do {
77 const float* restrict a0 = a[0];
78 assert(a0 != NULL);
79 if XNN_UNPREDICTABLE(a0 != zero) {
80 a0 = (const float*) ((uintptr_t) a0 + a_offset);
81 }
82 const float* restrict a1 = a[1];
83 assert(a1 != NULL);
84 if XNN_UNPREDICTABLE(a1 != zero) {
85 a1 = (const float*) ((uintptr_t) a1 + a_offset);
86 }
87 const float* restrict a2 = a[2];
88 assert(a2 != NULL);
89 if XNN_UNPREDICTABLE(a2 != zero) {
90 a2 = (const float*) ((uintptr_t) a2 + a_offset);
91 }
92 const float* restrict a3 = a[3];
93 assert(a3 != NULL);
94 if XNN_UNPREDICTABLE(a3 != zero) {
95 a3 = (const float*) ((uintptr_t) a3 + a_offset);
96 }
97 a += 4;
98
99 size_t k = kc;
100 do {
101 const float va0 = *a0++;
102 const float va1 = *a1++;
103 const float va2 = *a2++;
104 const float va3 = *a3++;
105
106 const float vb0 = w[0];
107 const float vb1 = w[1];
108 const float vb2 = w[2];
109 const float vb3 = w[3];
110 w += 4;
111
112 vacc00 += va0 * vb0;
113 vacc01 += va0 * vb1;
114 vacc02 += va0 * vb2;
115 vacc03 += va0 * vb3;
116 vacc10 += va1 * vb0;
117 vacc11 += va1 * vb1;
118 vacc12 += va1 * vb2;
119 vacc13 += va1 * vb3;
120 vacc20 += va2 * vb0;
121 vacc21 += va2 * vb1;
122 vacc22 += va2 * vb2;
123 vacc23 += va2 * vb3;
124 vacc30 += va3 * vb0;
125 vacc31 += va3 * vb1;
126 vacc32 += va3 * vb2;
127 vacc33 += va3 * vb3;
128
129 k -= sizeof(float);
130 } while (k != 0);
131 p -= 4 * sizeof(void*);
132 } while (p != 0);
133
134
135 if XNN_LIKELY(nc >= 4) {
136 c3[0] = vacc30;
137 c3[1] = vacc31;
138 c3[2] = vacc32;
139 c3[3] = vacc33;
140 c3 = (float*) ((uintptr_t) c3 + cn_stride);
141 c2[0] = vacc20;
142 c2[1] = vacc21;
143 c2[2] = vacc22;
144 c2[3] = vacc23;
145 c2 = (float*) ((uintptr_t) c2 + cn_stride);
146 c1[0] = vacc10;
147 c1[1] = vacc11;
148 c1[2] = vacc12;
149 c1[3] = vacc13;
150 c1 = (float*) ((uintptr_t) c1 + cn_stride);
151 c0[0] = vacc00;
152 c0[1] = vacc01;
153 c0[2] = vacc02;
154 c0[3] = vacc03;
155 c0 = (float*) ((uintptr_t) c0 + cn_stride);
156
157 a = (const float**restrict) ((uintptr_t) a - ks);
158 nc -= 4;
159 } else {
160 if (nc & 2) {
161 c3[0] = vacc30;
162 c3[1] = vacc31;
163 vacc30 = vacc32;
164 c3 += 2;
165 c2[0] = vacc20;
166 c2[1] = vacc21;
167 vacc20 = vacc22;
168 c2 += 2;
169 c1[0] = vacc10;
170 c1[1] = vacc11;
171 vacc10 = vacc12;
172 c1 += 2;
173 c0[0] = vacc00;
174 c0[1] = vacc01;
175 vacc00 = vacc02;
176 c0 += 2;
177 }
178 if (nc & 1) {
179 c3[0] = vacc30;
180 c2[0] = vacc20;
181 c1[0] = vacc10;
182 c0[0] = vacc00;
183 }
184
185 nc = 0;
186 }
187 } while (nc != 0);
188 }
189