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 #include <math.h>
12
13 #include <xnnpack/math.h>
14 #include <xnnpack/gemm.h>
15 #include <xnnpack/unaligned.h>
16
17
xnn_qu8_gemm_minmax_fp32_ukernel_4x2__scalar_lrintf(size_t mr,size_t nc,size_t kc,const uint8_t * restrict a,size_t a_stride,const void * restrict w,uint8_t * restrict c,size_t cm_stride,size_t cn_stride,const union xnn_qu8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_qu8_gemm_minmax_fp32_ukernel_4x2__scalar_lrintf(
19 size_t mr,
20 size_t nc,
21 size_t kc,
22 const uint8_t* restrict a,
23 size_t a_stride,
24 const void* restrict w,
25 uint8_t* restrict c,
26 size_t cm_stride,
27 size_t cn_stride,
28 const union xnn_qu8_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
35 const uint8_t* a0 = a;
36 uint8_t* c0 = c;
37 const uint8_t* a1 = (const uint8_t*) ((uintptr_t) a0 + a_stride);
38 uint8_t* c1 = (uint8_t*) ((uintptr_t) c0 + cm_stride);
39 if XNN_UNPREDICTABLE(mr < 2) {
40 a1 = a0;
41 c1 = c0;
42 }
43 const uint8_t* a2 = (const uint8_t*) ((uintptr_t) a1 + a_stride);
44 uint8_t* c2 = (uint8_t*) ((uintptr_t) c1 + cm_stride);
45 if XNN_UNPREDICTABLE(mr <= 2) {
46 a2 = a1;
47 c2 = c1;
48 }
49 const uint8_t* a3 = (const uint8_t*) ((uintptr_t) a2 + a_stride);
50 uint8_t* c3 = (uint8_t*) ((uintptr_t) c2 + cm_stride);
51 if XNN_UNPREDICTABLE(mr != 4) {
52 a3 = a2;
53 c3 = c2;
54 }
55
56 const int32_t vb_zero_point = params->fp32_scalar_lrintf.kernel_zero_point;
57 do {
58 int32_t vacc0x0 = unaligned_indexed_load_s32(w, 0);
59 int32_t vacc0x1 = unaligned_indexed_load_s32(w, 1);
60 int32_t vacc1x0 = vacc0x0;
61 int32_t vacc1x1 = vacc0x1;
62 int32_t vacc2x0 = vacc0x0;
63 int32_t vacc2x1 = vacc0x1;
64 int32_t vacc3x0 = vacc0x0;
65 int32_t vacc3x1 = vacc0x1;
66 w = (const void*) ((const int32_t*) w + 2);
67
68 size_t k = kc;
69 do {
70 const int32_t va0 = (int32_t) (uint32_t) *a0++;
71 const int32_t va1 = (int32_t) (uint32_t) *a1++;
72 const int32_t va2 = (int32_t) (uint32_t) *a2++;
73 const int32_t va3 = (int32_t) (uint32_t) *a3++;
74
75 const int32_t vb0 = (int32_t) (uint32_t) ((const uint8_t*) w)[0] - vb_zero_point;
76 const int32_t vb1 = (int32_t) (uint32_t) ((const uint8_t*) w)[1] - vb_zero_point;
77 w = (const void*) ((const uint8_t*) w + 2);
78
79 vacc0x0 += va0 * vb0;
80 vacc0x1 += va0 * vb1;
81 vacc1x0 += va1 * vb0;
82 vacc1x1 += va1 * vb1;
83 vacc2x0 += va2 * vb0;
84 vacc2x1 += va2 * vb1;
85 vacc3x0 += va3 * vb0;
86 vacc3x1 += va3 * vb1;
87
88 k -= sizeof(uint8_t);
89 } while (k != 0);
90
91 float vfpacc0x0 = (float) vacc0x0;
92 float vfpacc0x1 = (float) vacc0x1;
93 float vfpacc1x0 = (float) vacc1x0;
94 float vfpacc1x1 = (float) vacc1x1;
95 float vfpacc2x0 = (float) vacc2x0;
96 float vfpacc2x1 = (float) vacc2x1;
97 float vfpacc3x0 = (float) vacc3x0;
98 float vfpacc3x1 = (float) vacc3x1;
99
100 const float vscale = params->fp32_scalar_lrintf.scale;
101 vfpacc0x0 *= vscale;
102 vfpacc0x1 *= vscale;
103 vfpacc1x0 *= vscale;
104 vfpacc1x1 *= vscale;
105 vfpacc2x0 *= vscale;
106 vfpacc2x1 *= vscale;
107 vfpacc3x0 *= vscale;
108 vfpacc3x1 *= vscale;
109
110 const float voutput_min_less_zero_point = params->fp32_scalar_lrintf.output_min_less_zero_point;
111 vfpacc0x0 = math_max_f32(vfpacc0x0, voutput_min_less_zero_point);
112 vfpacc0x1 = math_max_f32(vfpacc0x1, voutput_min_less_zero_point);
113 vfpacc1x0 = math_max_f32(vfpacc1x0, voutput_min_less_zero_point);
114 vfpacc1x1 = math_max_f32(vfpacc1x1, voutput_min_less_zero_point);
115 vfpacc2x0 = math_max_f32(vfpacc2x0, voutput_min_less_zero_point);
116 vfpacc2x1 = math_max_f32(vfpacc2x1, voutput_min_less_zero_point);
117 vfpacc3x0 = math_max_f32(vfpacc3x0, voutput_min_less_zero_point);
118 vfpacc3x1 = math_max_f32(vfpacc3x1, voutput_min_less_zero_point);
119
120 const float voutput_max_less_zero_point = params->fp32_scalar_lrintf.output_max_less_zero_point;
121 vfpacc0x0 = math_min_f32(vfpacc0x0, voutput_max_less_zero_point);
122 vfpacc0x1 = math_min_f32(vfpacc0x1, voutput_max_less_zero_point);
123 vfpacc1x0 = math_min_f32(vfpacc1x0, voutput_max_less_zero_point);
124 vfpacc1x1 = math_min_f32(vfpacc1x1, voutput_max_less_zero_point);
125 vfpacc2x0 = math_min_f32(vfpacc2x0, voutput_max_less_zero_point);
126 vfpacc2x1 = math_min_f32(vfpacc2x1, voutput_max_less_zero_point);
127 vfpacc3x0 = math_min_f32(vfpacc3x0, voutput_max_less_zero_point);
128 vfpacc3x1 = math_min_f32(vfpacc3x1, voutput_max_less_zero_point);
129
130 const int32_t vrndacc0x0 = (int32_t) lrintf(vfpacc0x0);
131 const int32_t vrndacc0x1 = (int32_t) lrintf(vfpacc0x1);
132 const int32_t vrndacc1x0 = (int32_t) lrintf(vfpacc1x0);
133 const int32_t vrndacc1x1 = (int32_t) lrintf(vfpacc1x1);
134 const int32_t vrndacc2x0 = (int32_t) lrintf(vfpacc2x0);
135 const int32_t vrndacc2x1 = (int32_t) lrintf(vfpacc2x1);
136 const int32_t vrndacc3x0 = (int32_t) lrintf(vfpacc3x0);
137 const int32_t vrndacc3x1 = (int32_t) lrintf(vfpacc3x1);
138
139 const int32_t voutput_zero_point = params->fp32_scalar_lrintf.output_zero_point;
140 int32_t vout0x0 = vrndacc0x0 + voutput_zero_point;
141 int32_t vout0x1 = vrndacc0x1 + voutput_zero_point;
142 int32_t vout1x0 = vrndacc1x0 + voutput_zero_point;
143 int32_t vout1x1 = vrndacc1x1 + voutput_zero_point;
144 int32_t vout2x0 = vrndacc2x0 + voutput_zero_point;
145 int32_t vout2x1 = vrndacc2x1 + voutput_zero_point;
146 int32_t vout3x0 = vrndacc3x0 + voutput_zero_point;
147 int32_t vout3x1 = vrndacc3x1 + voutput_zero_point;
148
149 if XNN_LIKELY(nc >= 2) {
150 c0[0] = (uint8_t) vout0x0;
151 c0[1] = (uint8_t) vout0x1;
152 c1[0] = (uint8_t) vout1x0;
153 c1[1] = (uint8_t) vout1x1;
154 c2[0] = (uint8_t) vout2x0;
155 c2[1] = (uint8_t) vout2x1;
156 c3[0] = (uint8_t) vout3x0;
157 c3[1] = (uint8_t) vout3x1;
158
159 a0 = (const uint8_t*) ((uintptr_t) a0 - kc);
160 a1 = (const uint8_t*) ((uintptr_t) a1 - kc);
161 a2 = (const uint8_t*) ((uintptr_t) a2 - kc);
162 a3 = (const uint8_t*) ((uintptr_t) a3 - kc);
163
164 c0 = (uint8_t*) ((uintptr_t) c0 + cn_stride);
165 c1 = (uint8_t*) ((uintptr_t) c1 + cn_stride);
166 c2 = (uint8_t*) ((uintptr_t) c2 + cn_stride);
167 c3 = (uint8_t*) ((uintptr_t) c3 + cn_stride);
168
169 nc -= 2;
170 } else {
171 if (nc & 1) {
172 c0[0] = (uint8_t) vout0x0;
173 c1[0] = (uint8_t) vout1x0;
174 c2[0] = (uint8_t) vout2x0;
175 c3[0] = (uint8_t) vout3x0;
176 }
177
178 nc = 0;
179 }
180 } while (nc != 0);
181 }
182