1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-gavgpool/unipass-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 <fp16.h>
13
14 #include <xnnpack/gavgpool.h>
15 #include <xnnpack/math.h>
16
17
xnn_qs8_gavgpool_minmax_fp32_ukernel_7x__scalar_imagic_c2(size_t rows,size_t channels,const int8_t * input,size_t input_stride,const int8_t * zero,int8_t * output,const union xnn_qs8_avgpool_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_qs8_gavgpool_minmax_fp32_ukernel_7x__scalar_imagic_c2(
19 size_t rows,
20 size_t channels,
21 const int8_t* input,
22 size_t input_stride,
23 const int8_t* zero,
24 int8_t* output,
25 const union xnn_qs8_avgpool_minmax_params params[restrict XNN_MIN_ELEMENTS(1)])
26 {
27 assert(rows != 0);
28 assert(rows <= 7);
29 assert(channels != 0);
30
31 const int8_t* i0 = input;
32 const int8_t* i1 = (const int8_t*) ((uintptr_t) i0 + input_stride);
33 if XNN_UNPREDICTABLE(rows < 2) {
34 i1 = zero;
35 }
36 const int8_t* i2 = (const int8_t*) ((uintptr_t) i1 + input_stride);
37 if XNN_UNPREDICTABLE(rows <= 2) {
38 i2 = zero;
39 }
40 const int8_t* i3 = (const int8_t*) ((uintptr_t) i2 + input_stride);
41 if XNN_UNPREDICTABLE(rows < 4) {
42 i3 = zero;
43 }
44 const int8_t* i4 = (const int8_t*) ((uintptr_t) i3 + input_stride);
45 if XNN_UNPREDICTABLE(rows <= 4) {
46 i4 = zero;
47 }
48 const int8_t* i5 = (const int8_t*) ((uintptr_t) i4 + input_stride);
49 if XNN_UNPREDICTABLE(rows < 6) {
50 i5 = zero;
51 }
52 const int8_t* i6 = (const int8_t*) ((uintptr_t) i5 + input_stride);
53 if XNN_UNPREDICTABLE(rows <= 6) {
54 i6 = zero;
55 }
56
57 const int32_t vinit_bias = params->fp32_scalar_imagic.init_bias;
58 const float vscale = params->fp32_scalar_imagic.scale;
59 const float vmagic_bias = params->fp32_scalar_imagic.magic_bias;
60 const int32_t vmagic_min = params->fp32_scalar_imagic.magic_min;
61 const int32_t vmagic_max = params->fp32_scalar_imagic.magic_max;
62 const int32_t vmagic_bias_less_zero_point = params->fp32_scalar_imagic.magic_bias_less_zero_point;
63 for (; channels >= 2; channels -= 2) {
64 const int32_t vi0x0 = (int32_t) i0[0];
65 const int32_t vi0x1 = (int32_t) i0[1];
66 i0 += 2;
67
68 int32_t vacc0 = vi0x0 + vinit_bias;
69 const int32_t vi1x0 = (int32_t) i1[0];
70 int32_t vacc1 = vi0x1 + vinit_bias;
71 const int32_t vi1x1 = (int32_t) i1[1];
72 i1 += 2;
73
74 vacc0 += vi1x0;
75 const int32_t vi2x0 = (int32_t) i2[0];
76 vacc1 += vi1x1;
77 const int32_t vi2x1 = (int32_t) i2[1];
78 i2 += 2;
79 vacc0 += vi2x0;
80 const int32_t vi3x0 = (int32_t) i3[0];
81 vacc1 += vi2x1;
82 const int32_t vi3x1 = (int32_t) i3[1];
83 i3 += 2;
84 vacc0 += vi3x0;
85 const int32_t vi4x0 = (int32_t) i4[0];
86 vacc1 += vi3x1;
87 const int32_t vi4x1 = (int32_t) i4[1];
88 i4 += 2;
89 vacc0 += vi4x0;
90 const int32_t vi5x0 = (int32_t) i5[0];
91 vacc1 += vi4x1;
92 const int32_t vi5x1 = (int32_t) i5[1];
93 i5 += 2;
94 vacc0 += vi5x0;
95 const int32_t vi6x0 = (int32_t) i6[0];
96 vacc1 += vi5x1;
97 const int32_t vi6x1 = (int32_t) i6[1];
98 i6 += 2;
99
100 vacc0 += vi6x0;
101 vacc1 += vi6x1;
102
103 float vfpacc0 = (float) vacc0 * vscale;
104 float vfpacc1 = (float) vacc1 * vscale;
105
106 vfpacc0 += vmagic_bias;
107 vfpacc1 += vmagic_bias;
108
109 int32_t vout0 = (int32_t) fp32_to_bits(vfpacc0);
110 int32_t vout1 = (int32_t) fp32_to_bits(vfpacc1);
111
112 vout0 = math_max_s32(vout0, vmagic_min);
113 vout1 = math_max_s32(vout1, vmagic_min);
114
115 vout0 = math_min_s32(vout0, vmagic_max);
116 vout1 = math_min_s32(vout1, vmagic_max);
117
118 vout0 -= vmagic_bias_less_zero_point;
119 vout1 -= vmagic_bias_less_zero_point;
120
121 output[0] = (int8_t) vout0;
122 output[1] = (int8_t) vout1;
123 output += 2;
124 }
125 if XNN_UNLIKELY(channels != 0) {
126 int32_t vacc = vinit_bias;
127 const int32_t vi0 = (int32_t) *i0;
128 const int32_t vi1 = (int32_t) *i1;
129
130 vacc += vi0;
131 const int32_t vi2 = (int32_t) *i2;
132 vacc += vi1;
133 const int32_t vi3 = (int32_t) *i3;
134 vacc += vi2;
135 const int32_t vi4 = (int32_t) *i4;
136 vacc += vi3;
137 const int32_t vi5 = (int32_t) *i5;
138 vacc += vi4;
139 const int32_t vi6 = (int32_t) *i6;
140
141 vacc += vi5;
142 vacc += vi6;
143
144 float vfpacc = (float) vacc * vscale;
145 vfpacc += vmagic_bias;
146 int32_t vout = (int32_t) fp32_to_bits(vfpacc);
147 vout = math_max_s32(vout, vmagic_min);
148 vout = math_min_s32(vout, vmagic_max);
149 vout -= vmagic_bias_less_zero_point;
150
151 *output = (int8_t) vout;
152 }
153 }
154