1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-gemm/MRx4c2s4-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_qu8_gemm_minmax_fp32_ukernel_1x4c2s4__wasmsimd_dot16x2_ld128(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)])19 void xnn_qu8_gemm_minmax_fp32_ukernel_1x4c2s4__wasmsimd_dot16x2_ld128(
20 size_t mr,
21 size_t nc,
22 size_t kc,
23 const uint8_t* restrict a,
24 size_t a_stride,
25 const void* restrict w,
26 uint8_t* restrict c,
27 size_t cm_stride,
28 size_t cn_stride,
29 const union xnn_qu8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
30 {
31 assert(mr != 0);
32 assert(mr <= 1);
33 assert(nc != 0);
34 assert(kc != 0);
35 assert(kc % sizeof(uint8_t) == 0);
36 assert(a != NULL);
37 assert(w != NULL);
38 assert(c != NULL);
39
40 const uint8_t* a0 = a;
41 uint8_t* c0 = c;
42
43 kc = round_up_po2(kc, 8 * sizeof(uint8_t));
44 do {
45 v128_t vacc0x0123 = wasm_v128_load(w);
46 w = (const void*) ((const int32_t*) w + 4);
47
48 const v128_t vb_zero_point = wasm_v128_load64_splat(params->fp32_wasmsimd.kernel_zero_point);
49 size_t k = kc;
50 do {
51 v128_t vxa0 = wasm_u16x8_load8x8((const v128_t*) a0);
52 a0 += 8;
53
54 const v128_t vb01 = wasm_v128_load(w);
55 const v128_t vxb0 = wasm_i16x8_sub(wasm_u16x8_extend_low_u8x16(vb01), vb_zero_point);
56 const v128_t vxb1 = wasm_i16x8_sub(wasm_u16x8_extend_high_u8x16(vb01), vb_zero_point);
57
58 vacc0x0123 = wasm_i32x4_add(vacc0x0123, wasm_i32x4_dot_i16x8(vxa0, vxb0));
59 vxa0 = wasm_v32x4_shuffle(vxa0, vxa0, 1, 2, 3, 4);
60
61 vacc0x0123 = wasm_i32x4_add(vacc0x0123, wasm_i32x4_dot_i16x8(vxa0, vxb1));
62 vxa0 = wasm_v32x4_shuffle(vxa0, vxa0, 1, 2, 3, 4);
63 const v128_t vb23 = wasm_v128_load((const uint8_t*) w + 16);
64 const v128_t vxb2 = wasm_i16x8_sub(wasm_u16x8_extend_low_u8x16(vb23), vb_zero_point);
65 const v128_t vxb3 = wasm_i16x8_sub(wasm_u16x8_extend_high_u8x16(vb23), vb_zero_point);
66
67 vacc0x0123 = wasm_i32x4_add(vacc0x0123, wasm_i32x4_dot_i16x8(vxa0, vxb2));
68 vxa0 = wasm_v32x4_shuffle(vxa0, vxa0, 1, 2, 3, 4);
69
70 vacc0x0123 = wasm_i32x4_add(vacc0x0123, wasm_i32x4_dot_i16x8(vxa0, vxb3));
71
72 w = (const uint8_t*) w + 32;
73 k -= 8 * sizeof(uint8_t);
74 } while (k != 0);
75
76 vacc0x0123 = wasm_f32x4_convert_i32x4(vacc0x0123);
77
78 const v128_t vscale = wasm_v128_load64_splat(params->fp32_wasmsimd.scale);
79 vacc0x0123 = wasm_f32x4_mul(vacc0x0123, vscale);
80
81 const v128_t vmagic_bias = wasm_v128_load64_splat(params->fp32_wasmsimd.magic_bias);
82 vacc0x0123 = wasm_f32x4_add(vacc0x0123, vmagic_bias);
83
84 const v128_t vmagic_min = wasm_v128_load64_splat(params->fp32_wasmsimd.magic_min);
85 vacc0x0123 = wasm_i32x4_max(vacc0x0123, vmagic_min);
86
87 const v128_t vmagic_bias_less_output_zero_point = wasm_v128_load64_splat(params->fp32_wasmsimd.magic_bias_less_output_zero_point);
88 vacc0x0123 = wasm_i32x4_sub(vacc0x0123, vmagic_bias_less_output_zero_point);
89
90 v128_t vacc00x0123 = wasm_i16x8_narrow_i32x4(vacc0x0123, vacc0x0123);
91
92 v128_t vout = wasm_u8x16_narrow_i16x8(vacc00x0123, vacc00x0123);
93
94 const v128_t voutput_max = wasm_v128_load64_splat(params->fp32_wasmsimd.output_max);
95 vout = wasm_u8x16_min(vout, voutput_max);
96
97 if (nc >= 4) {
98 *((float*) c0) = (float) wasm_f32x4_extract_lane(vout, 0);
99
100 c0 = (uint8_t*) ((uintptr_t) c0 + cn_stride);
101
102 a0 = (const uint8_t*) ((uintptr_t) a0 - kc);
103
104 nc -= 4;
105 } else {
106 uint32_t vout0 = wasm_i32x4_extract_lane(vout, 0);
107 if (nc & 2) {
108 *((uint16_t*) c0) = (uint16_t) vout0;
109 vout0 >>= 16;
110 c0 += 2;
111 }
112 if (nc & 1) {
113 *c0 = (uint8_t) vout0;
114 }
115
116 nc = 0;
117 }
118 } while (nc != 0);
119 }
120