1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-gemm/c4-armsimd32.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2022 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 <arm_acle.h>
13
14 #include <xnnpack/intrinsics-polyfill.h>
15 #include <xnnpack/math.h>
16 #include <xnnpack/gemm.h>
17 #include <xnnpack/unaligned.h>
18
19
xnn_qc8_gemm_minmax_fp32_ukernel_2x2c4__armsimd32(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_qc8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])20 void xnn_qc8_gemm_minmax_fp32_ukernel_2x2c4__armsimd32(
21 size_t mr,
22 size_t nc,
23 size_t kc,
24 const int8_t* restrict a,
25 size_t a_stride,
26 const void* restrict w,
27 int8_t* restrict c,
28 size_t cm_stride,
29 size_t cn_stride,
30 const union xnn_qc8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)])
31 {
32 assert(mr != 0);
33 assert(mr <= 2);
34 assert(nc != 0);
35 assert(kc != 0);
36
37 kc = round_up_po2(kc, 4 * sizeof(int8_t));
38 const int8_t* a0 = a;
39 int8_t* c0 = c;
40 const int8_t* a1 = (const int8_t*) ((uintptr_t) a0 + a_stride);
41 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
42 if XNN_UNPREDICTABLE(mr != 2) {
43 a1 = a0;
44 c1 = c0;
45 }
46
47 const float vmagic_bias = params->fp32_armsimd32.magic_bias;
48 do {
49 int32_t vacc0x0 = ((const int32_t*) w)[0];
50 int32_t vacc0x1 = ((const int32_t*) w)[1];
51 int32_t vacc1x0 = vacc0x0;
52 int32_t vacc1x1 = vacc0x1;
53 w = (const void*) ((const int32_t*) w + 2);
54
55 size_t k = kc;
56 do {
57 const int8x4_t va0 = (int8x4_t) unaligned_load_s32(a0); a0 += 4;
58 const int8x4_t va1 = (int8x4_t) unaligned_load_s32(a1); a1 += 4;
59
60 const int16x2_t va0c02 = __sxtb16(va0);
61 const int16x2_t va0c13 = __sxtb16(__ror(va0, 8));
62 const int16x2_t va1c02 = __sxtb16(va1);
63 const int16x2_t va1c13 = __sxtb16(__ror(va1, 8));
64
65 const int8x4_t vb0 = *((const int8x4_t*) w); w = (const int8_t*) w + 4;
66 const int16x2_t vb0c02 = __sxtb16(vb0);
67
68 vacc0x0 = __smlad(va0c02, vb0c02, vacc0x0);
69 vacc1x0 = __smlad(va1c02, vb0c02, vacc1x0);
70
71 const int16x2_t vb0c13 = __sxtb16(__ror(vb0, 8));
72 vacc0x0 = __smlad(va0c13, vb0c13, vacc0x0);
73 vacc1x0 = __smlad(va1c13, vb0c13, vacc1x0);
74 const int8x4_t vb1 = *((const int8x4_t*) w); w = (const int8_t*) w + 4;
75 const int16x2_t vb1c02 = __sxtb16(vb1);
76
77 vacc0x1 = __smlad(va0c02, vb1c02, vacc0x1);
78 vacc1x1 = __smlad(va1c02, vb1c02, vacc1x1);
79
80 const int16x2_t vb1c13 = __sxtb16(__ror(vb1, 8));
81 vacc0x1 = __smlad(va0c13, vb1c13, vacc0x1);
82 vacc1x1 = __smlad(va1c13, vb1c13, vacc1x1);
83
84 k -= 4 * sizeof(int8_t);
85 } while (k != 0);
86
87 float vfpacc0x0 = (float) vacc0x0;
88 float vfpacc0x1 = (float) vacc0x1;
89 float vfpacc1x0 = (float) vacc1x0;
90 float vfpacc1x1 = (float) vacc1x1;
91
92 const float vscale0 = ((const float*) w)[0];
93 vfpacc0x0 *= vscale0;
94 vfpacc1x0 *= vscale0;
95 const float vscale1 = ((const float*) w)[1];
96 vfpacc0x1 *= vscale1;
97 vfpacc1x1 *= vscale1;
98 w = (const void*) ((const float*) w + 2);
99
100 vfpacc0x0 += vmagic_bias;
101 vfpacc0x1 += vmagic_bias;
102 vfpacc1x0 += vmagic_bias;
103 vfpacc1x1 += vmagic_bias;
104
105 int32_t vout0x0 = (int32_t) float_as_uint32(vfpacc0x0);
106 int32_t vout0x1 = (int32_t) float_as_uint32(vfpacc0x1);
107 int32_t vout1x0 = (int32_t) float_as_uint32(vfpacc1x0);
108 int32_t vout1x1 = (int32_t) float_as_uint32(vfpacc1x1);
109
110 const int32_t vmagic_bias_less_zero_point = params->fp32_armsimd32.magic_bias_less_zero_point;
111 vout0x0 = __qsub(vout0x0, vmagic_bias_less_zero_point);
112 vout0x1 = __qsub(vout0x1, vmagic_bias_less_zero_point);
113 vout1x0 = __qsub(vout1x0, vmagic_bias_less_zero_point);
114 vout1x1 = __qsub(vout1x1, vmagic_bias_less_zero_point);
115
116 vout0x0 = __ssat(vout0x0, 8);
117 vout0x1 = __ssat(vout0x1, 8);
118 vout1x0 = __ssat(vout1x0, 8);
119 vout1x1 = __ssat(vout1x1, 8);
120
121 const uint32_t vout0 = (uint32_t) (uint8_t) vout0x0 | ((uint32_t) vout0x1 << 8);
122 const uint32_t vout1 = (uint32_t) (uint8_t) vout1x0 | ((uint32_t) vout1x1 << 8);
123
124 uint32_t vout = (uint32_t) (uint16_t) vout0 | (vout1 << 16);
125
126 const int8x4_t voutput_min = (int8x4_t) params->fp32_armsimd32.output_min;
127 __ssub8((int8x4_t) vout, voutput_min);
128 vout = (uint32_t) __sel((uint8x4_t) vout, (uint8x4_t) voutput_min);
129
130 const int8x4_t voutput_max = (int8x4_t) params->fp32_armsimd32.output_max;
131 __ssub8((int8x4_t) vout, voutput_max);
132 vout = (uint32_t) __sel((uint8x4_t) voutput_max, (uint8x4_t) vout);
133
134 if XNN_LIKELY(nc >= 2) {
135 unaligned_store_u16(c0, (uint16_t) vout);
136 vout >>= 16;
137 unaligned_store_u16(c1, (uint16_t) vout);
138
139 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
140 a1 = (const int8_t*) ((uintptr_t) a1 - kc);
141
142 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
143 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
144
145 nc -= 2;
146 } else {
147 *c0 = (int8_t) vout;
148 vout >>= 16;
149 *c1 = (int8_t) vout;
150
151 nc = 0;
152 }
153 } while (nc != 0);
154 }
155