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 #include <math.h>
12
13 #include <xnnpack/math.h>
14 #include <xnnpack/gemm.h>
15 #include <xnnpack/unaligned.h>
16
17
xnn_qs8_igemm_minmax_fp32_ukernel_3x2__scalar_lrintf(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)])18 void xnn_qs8_igemm_minmax_fp32_ukernel_3x2__scalar_lrintf(
19 size_t mr,
20 size_t nc,
21 size_t kc,
22 size_t ks,
23 const int8_t**restrict a,
24 const void*restrict w,
25 int8_t*restrict c,
26 size_t cm_stride,
27 size_t cn_stride,
28 size_t a_offset,
29 const int8_t* zero,
30 const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)])
31 {
32 assert(mr != 0);
33 assert(mr <= 3);
34 assert(nc != 0);
35 assert(kc != 0);
36 assert(ks != 0);
37 assert(ks % (3 * sizeof(void*)) == 0);
38 assert(a != NULL);
39 assert(w != NULL);
40 assert(c != NULL);
41
42 int8_t* c0 = c;
43 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
44 if XNN_UNPREDICTABLE(mr < 2) {
45 c1 = c0;
46 }
47 int8_t* c2 = (int8_t*) ((uintptr_t) c1 + cm_stride);
48 if XNN_UNPREDICTABLE(mr <= 2) {
49 c2 = c1;
50 }
51
52 do {
53 int32_t vacc0x0 = unaligned_indexed_load_s32(w, 0);
54 int32_t vacc0x1 = unaligned_indexed_load_s32(w, 1);
55 int32_t vacc1x0 = vacc0x0;
56 int32_t vacc1x1 = vacc0x1;
57 int32_t vacc2x0 = vacc0x0;
58 int32_t vacc2x1 = vacc0x1;
59 w = (const void*) ((const int32_t*) w + 2);
60
61 size_t p = ks;
62 do {
63 const int8_t* restrict a0 = a[0];
64 assert(a0 != NULL);
65 if XNN_UNPREDICTABLE(a0 != zero) {
66 a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
67 }
68 const int8_t* restrict a1 = a[1];
69 assert(a1 != NULL);
70 if XNN_UNPREDICTABLE(a1 != zero) {
71 a1 = (const int8_t*) ((uintptr_t) a1 + a_offset);
72 }
73 const int8_t* restrict a2 = a[2];
74 assert(a2 != NULL);
75 if XNN_UNPREDICTABLE(a2 != zero) {
76 a2 = (const int8_t*) ((uintptr_t) a2 + a_offset);
77 }
78 a += 3;
79
80 size_t k = kc;
81 do {
82 const int32_t va0 = (int32_t) *a0++;
83 const int32_t va1 = (int32_t) *a1++;
84 const int32_t va2 = (int32_t) *a2++;
85
86 const int32_t vb0 = (int32_t) ((const int8_t*) w)[0];
87 const int32_t vb1 = (int32_t) ((const int8_t*) w)[1];
88 w = (const void*) ((const int8_t*) w + 2);
89
90 vacc0x0 += va0 * vb0;
91 vacc0x1 += va0 * vb1;
92 vacc1x0 += va1 * vb0;
93 vacc1x1 += va1 * vb1;
94 vacc2x0 += va2 * vb0;
95 vacc2x1 += va2 * vb1;
96
97 k -= sizeof(int8_t);
98 } while (k != 0);
99 p -= 3 * sizeof(void*);
100 } while (p != 0);
101
102 float vfpacc0x0 = (float) vacc0x0;
103 float vfpacc0x1 = (float) vacc0x1;
104 float vfpacc1x0 = (float) vacc1x0;
105 float vfpacc1x1 = (float) vacc1x1;
106 float vfpacc2x0 = (float) vacc2x0;
107 float vfpacc2x1 = (float) vacc2x1;
108
109 const float vscale = params->fp32_scalar_lrintf.scale;
110 vfpacc0x0 *= vscale;
111 vfpacc0x1 *= vscale;
112 vfpacc1x0 *= vscale;
113 vfpacc1x1 *= vscale;
114 vfpacc2x0 *= vscale;
115 vfpacc2x1 *= vscale;
116
117 const float voutput_min_less_zero_point = params->fp32_scalar_lrintf.output_min_less_zero_point;
118 vfpacc0x0 = math_max_f32(vfpacc0x0, voutput_min_less_zero_point);
119 vfpacc0x1 = math_max_f32(vfpacc0x1, voutput_min_less_zero_point);
120 vfpacc1x0 = math_max_f32(vfpacc1x0, voutput_min_less_zero_point);
121 vfpacc1x1 = math_max_f32(vfpacc1x1, voutput_min_less_zero_point);
122 vfpacc2x0 = math_max_f32(vfpacc2x0, voutput_min_less_zero_point);
123 vfpacc2x1 = math_max_f32(vfpacc2x1, voutput_min_less_zero_point);
124
125 const float voutput_max_less_zero_point = params->fp32_scalar_lrintf.output_max_less_zero_point;
126 vfpacc0x0 = math_min_f32(vfpacc0x0, voutput_max_less_zero_point);
127 vfpacc0x1 = math_min_f32(vfpacc0x1, voutput_max_less_zero_point);
128 vfpacc1x0 = math_min_f32(vfpacc1x0, voutput_max_less_zero_point);
129 vfpacc1x1 = math_min_f32(vfpacc1x1, voutput_max_less_zero_point);
130 vfpacc2x0 = math_min_f32(vfpacc2x0, voutput_max_less_zero_point);
131 vfpacc2x1 = math_min_f32(vfpacc2x1, voutput_max_less_zero_point);
132
133 const int32_t vrndacc0x0 = (int32_t) lrintf(vfpacc0x0);
134 const int32_t vrndacc0x1 = (int32_t) lrintf(vfpacc0x1);
135 const int32_t vrndacc1x0 = (int32_t) lrintf(vfpacc1x0);
136 const int32_t vrndacc1x1 = (int32_t) lrintf(vfpacc1x1);
137 const int32_t vrndacc2x0 = (int32_t) lrintf(vfpacc2x0);
138 const int32_t vrndacc2x1 = (int32_t) lrintf(vfpacc2x1);
139
140 const int32_t voutput_zero_point = params->fp32_scalar_lrintf.output_zero_point;
141 int32_t vout0x0 = vrndacc0x0 + voutput_zero_point;
142 int32_t vout0x1 = vrndacc0x1 + voutput_zero_point;
143 int32_t vout1x0 = vrndacc1x0 + voutput_zero_point;
144 int32_t vout1x1 = vrndacc1x1 + voutput_zero_point;
145 int32_t vout2x0 = vrndacc2x0 + voutput_zero_point;
146 int32_t vout2x1 = vrndacc2x1 + voutput_zero_point;
147
148 if XNN_LIKELY(nc >= 2) {
149 c2[0] = (int8_t) vout2x0;
150 c2[1] = (int8_t) vout2x1;
151 c1[0] = (int8_t) vout1x0;
152 c1[1] = (int8_t) vout1x1;
153 c0[0] = (int8_t) vout0x0;
154 c0[1] = (int8_t) vout0x1;
155
156 c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
157 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
158 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
159
160 a = (const int8_t**restrict) ((uintptr_t) a - ks);
161 nc -= 2;
162 } else {
163 if (nc & 1) {
164 c2[0] = (int8_t) vout2x0;
165 c1[0] = (int8_t) vout1x0;
166 c0[0] = (int8_t) vout0x0;
167 }
168
169 nc = 0;
170 }
171 } while (nc != 0);
172 }
173