1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-gemm/MRx4c2-wasmsimd-dot16x2.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 <wasm_simd128.h>
13
14 #include <xnnpack/gemm.h>
15 #include <xnnpack/math.h>
16
17
18
xnn_qs8_gemm_minmax_fp32_ukernel_2x4c2__wasmsimd_dot16x2_ld128(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)])19 void xnn_qs8_gemm_minmax_fp32_ukernel_2x4c2__wasmsimd_dot16x2_ld128(
20 size_t mr,
21 size_t nc,
22 size_t kc,
23 const int8_t* restrict a,
24 size_t a_stride,
25 const void* restrict w,
26 int8_t* restrict c,
27 size_t cm_stride,
28 size_t cn_stride,
29 const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
30 {
31 assert(mr != 0);
32 assert(mr <= 2);
33 assert(nc != 0);
34 assert(kc != 0);
35 assert(kc % sizeof(int8_t) == 0);
36 assert(a != NULL);
37 assert(w != NULL);
38 assert(c != NULL);
39
40 kc = round_up_po2(kc, 2);
41 const int8_t* a0 = a;
42 int8_t* c0 = c;
43 const int8_t* a1 = (const int8_t*) ((uintptr_t) a0 + a_stride);
44 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
45 if XNN_UNPREDICTABLE(mr != 2) {
46 a1 = a0;
47 c1 = c0;
48 }
49
50 do {
51 v128_t vacc0x0123 = wasm_v128_load(w);
52 v128_t vacc1x0123 = vacc0x0123;
53 w = (const void*) ((const int32_t*) w + 4);
54
55 size_t k = kc;
56 while (k >= 8 * sizeof(int8_t)) {
57 const v128_t vxa0 = wasm_i16x8_load8x8((const v128_t*) a0);
58 a0 += 8;
59 const v128_t vxa1 = wasm_i16x8_load8x8((const v128_t*) a1);
60 a1 += 8;
61
62 const v128_t vb01 = wasm_v128_load(w);
63 const v128_t vxb0 = wasm_i16x8_extend_low_i8x16(vb01);
64 const v128_t vxb1 = wasm_i16x8_extend_high_i8x16(vb01);
65
66 vacc0x0123 = wasm_i32x4_add(vacc0x0123,
67 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 0, 0, 0, 0), vxb0));
68 vacc1x0123 = wasm_i32x4_add(vacc1x0123,
69 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa1, vxa1, 0, 0, 0, 0), vxb0));
70
71 vacc0x0123 = wasm_i32x4_add(vacc0x0123,
72 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 1, 1, 1, 1), vxb1));
73 vacc1x0123 = wasm_i32x4_add(vacc1x0123,
74 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa1, vxa1, 1, 1, 1, 1), vxb1));
75 const v128_t vb23 = wasm_v128_load((const int8_t*) w + 16);
76 const v128_t vxb2 = wasm_i16x8_extend_low_i8x16(vb23);
77 const v128_t vxb3 = wasm_i16x8_extend_high_i8x16(vb23);
78
79 vacc0x0123 = wasm_i32x4_add(vacc0x0123,
80 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 2, 2, 2, 2), vxb2));
81 vacc1x0123 = wasm_i32x4_add(vacc1x0123,
82 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa1, vxa1, 2, 2, 2, 2), vxb2));
83
84 vacc0x0123 = wasm_i32x4_add(vacc0x0123,
85 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 3, 3, 3, 3), vxb3));
86 vacc1x0123 = wasm_i32x4_add(vacc1x0123,
87 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa1, vxa1, 3, 3, 3, 3), vxb3));
88
89 w = (const void*) ((const int8_t*) w + 32);
90 k -= 8 * sizeof(int8_t);
91 }
92 if (k != 0) {
93 const v128_t vxa0 = wasm_i16x8_load8x8(a0);
94 a0 = (const int8_t*) ((uintptr_t) a0 + k);
95 const v128_t vxa1 = wasm_i16x8_load8x8(a1);
96 a1 = (const int8_t*) ((uintptr_t) a1 + k);
97
98 const v128_t vxb0 = wasm_i16x8_load8x8(w);
99 w = (const void*) ((const int8_t*) w + 8);
100
101 vacc0x0123 = wasm_i32x4_add(vacc0x0123,
102 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 0, 0, 0, 0), vxb0));
103 vacc1x0123 = wasm_i32x4_add(vacc1x0123,
104 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa1, vxa1, 0, 0, 0, 0), vxb0));
105
106 if (k > 2 * sizeof(int8_t)) {
107 const v128_t vxb1 = wasm_i16x8_load8x8(w);
108 w = (const void*) ((const int8_t*) w + 8);
109
110 vacc0x0123 = wasm_i32x4_add(vacc0x0123,
111 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 1, 1, 1, 1), vxb1));
112 vacc1x0123 = wasm_i32x4_add(vacc1x0123,
113 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa1, vxa1, 1, 1, 1, 1), vxb1));
114
115 if (k > 4 * sizeof(int8_t)) {
116 const v128_t vxb2 = wasm_i16x8_load8x8(w);
117 w = (const void*) ((const int8_t*) w + 8);
118
119 vacc0x0123 = wasm_i32x4_add(vacc0x0123,
120 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa0, vxa0, 2, 2, 2, 2), vxb2));
121 vacc1x0123 = wasm_i32x4_add(vacc1x0123,
122 wasm_i32x4_dot_i16x8(wasm_v32x4_shuffle(vxa1, vxa1, 2, 2, 2, 2), vxb2));
123 }
124 }
125 }
126
127 vacc0x0123 = wasm_f32x4_convert_i32x4(vacc0x0123);
128 vacc1x0123 = wasm_f32x4_convert_i32x4(vacc1x0123);
129
130 const v128_t vscale = wasm_v128_load64_splat(params->fp32_wasmsimd.scale);
131 vacc0x0123 = wasm_f32x4_mul(vacc0x0123, vscale);
132 vacc1x0123 = wasm_f32x4_mul(vacc1x0123, vscale);
133
134 const v128_t vmagic_bias = wasm_v128_load64_splat(params->fp32_wasmsimd.magic_bias);
135 vacc0x0123 = wasm_f32x4_add(vacc0x0123, vmagic_bias);
136 vacc1x0123 = wasm_f32x4_add(vacc1x0123, vmagic_bias);
137
138 const v128_t vmagic_min = wasm_v128_load64_splat(params->fp32_wasmsimd.magic_min);
139 vacc0x0123 = wasm_i32x4_max(vacc0x0123, vmagic_min);
140 vacc1x0123 = wasm_i32x4_max(vacc1x0123, vmagic_min);
141
142 const v128_t vmagic_bias_less_output_zero_point = wasm_v128_load64_splat(params->fp32_wasmsimd.magic_bias_less_output_zero_point);
143 vacc0x0123 = wasm_i32x4_sub(vacc0x0123, vmagic_bias_less_output_zero_point);
144 vacc1x0123 = wasm_i32x4_sub(vacc1x0123, vmagic_bias_less_output_zero_point);
145
146 v128_t vacc01x0123 = wasm_i16x8_narrow_i32x4(vacc0x0123, vacc1x0123);
147
148 v128_t vout = wasm_i8x16_narrow_i16x8(vacc01x0123, vacc01x0123);
149
150 const v128_t voutput_max = wasm_v128_load64_splat(params->fp32_wasmsimd.output_max);
151 vout = wasm_i8x16_min(vout, voutput_max);
152
153 if (nc >= 4) {
154 *((float*) c0) = (float) wasm_f32x4_extract_lane(vout, 0);
155 *((float*) c1) = (float) wasm_f32x4_extract_lane(vout, 1);
156
157 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
158 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
159
160 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
161 a1 = (const int8_t*) ((uintptr_t) a1 - kc);
162
163 nc -= 4;
164 } else {
165 uint32_t vout0 = wasm_i32x4_extract_lane(vout, 0);
166 uint32_t vout1 = wasm_i32x4_extract_lane(vout, 1);
167 if (nc & 2) {
168 *((uint16_t*) c0) = (uint16_t) vout0;
169 vout0 >>= 16;
170 c0 += 2;
171 *((uint16_t*) c1) = (uint16_t) vout1;
172 vout1 >>= 16;
173 c1 += 2;
174 }
175 if (nc & 1) {
176 *c0 = (int8_t) vout0;
177 *c1 = (int8_t) vout1;
178 }
179
180 nc = 0;
181 }
182 } while (nc != 0);
183 }
184