1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-igemm/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_igemm_minmax_fp32_ukernel_1x2c4__armsimd32(size_t mr,size_t nc,size_t kc,size_t ks,const int8_t ** restrict a,const void * restrict w,int8_t * restrict c,size_t cm_stride,size_t cn_stride,size_t a_offset,const int8_t * zero,const union xnn_qc8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])20 void xnn_qc8_igemm_minmax_fp32_ukernel_1x2c4__armsimd32(
21 size_t mr,
22 size_t nc,
23 size_t kc,
24 size_t ks,
25 const int8_t**restrict a,
26 const void*restrict w,
27 int8_t*restrict c,
28 size_t cm_stride,
29 size_t cn_stride,
30 size_t a_offset,
31 const int8_t* zero,
32 const union xnn_qc8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)])
33 {
34 assert(mr != 0);
35 assert(mr <= 1);
36 assert(nc != 0);
37 assert(kc != 0);
38 assert(ks != 0);
39 assert(ks % (1 * sizeof(void*)) == 0);
40 assert(a != NULL);
41 assert(w != NULL);
42 assert(c != NULL);
43
44 kc = round_up_po2(kc, 4 * sizeof(int8_t));
45 int8_t* c0 = c;
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 w = (const void*) ((const int32_t*) w + 2);
52
53 size_t p = ks;
54 do {
55 const int8_t* restrict a0 = a[0];
56 assert(a0 != NULL);
57 if XNN_UNPREDICTABLE(a0 != zero) {
58 a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
59 }
60 a += 1;
61
62 size_t k = kc;
63 do {
64 const int8x4_t va0 = (int8x4_t) unaligned_load_s32(a0); a0 += 4;
65
66 const int16x2_t va0c02 = __sxtb16(va0);
67 const int16x2_t va0c13 = __sxtb16(__ror(va0, 8));
68
69 const int8x4_t vb0 = *((const int8x4_t*) w); w = (const int8_t*) w + 4;
70 const int16x2_t vb0c02 = __sxtb16(vb0);
71
72 vacc0x0 = __smlad(va0c02, vb0c02, vacc0x0);
73
74 const int16x2_t vb0c13 = __sxtb16(__ror(vb0, 8));
75 vacc0x0 = __smlad(va0c13, vb0c13, vacc0x0);
76 const int8x4_t vb1 = *((const int8x4_t*) w); w = (const int8_t*) w + 4;
77 const int16x2_t vb1c02 = __sxtb16(vb1);
78
79 vacc0x1 = __smlad(va0c02, vb1c02, vacc0x1);
80
81 const int16x2_t vb1c13 = __sxtb16(__ror(vb1, 8));
82 vacc0x1 = __smlad(va0c13, vb1c13, vacc0x1);
83
84 k -= 4 * sizeof(int8_t);
85 } while (k != 0);
86 p -= 1 * sizeof(void*);
87 } while (p != 0);
88
89 float vfpacc0x0 = (float) vacc0x0;
90 float vfpacc0x1 = (float) vacc0x1;
91
92 const float vscale0 = ((const float*) w)[0];
93 vfpacc0x0 *= vscale0;
94 const float vscale1 = ((const float*) w)[1];
95 vfpacc0x1 *= vscale1;
96 w = (const void*) ((const float*) w + 2);
97
98 vfpacc0x0 += vmagic_bias;
99 vfpacc0x1 += vmagic_bias;
100
101 int32_t vout0x0 = (int32_t) float_as_uint32(vfpacc0x0);
102 int32_t vout0x1 = (int32_t) float_as_uint32(vfpacc0x1);
103
104 const int32_t vmagic_bias_less_zero_point = params->fp32_armsimd32.magic_bias_less_zero_point;
105 vout0x0 = __qsub(vout0x0, vmagic_bias_less_zero_point);
106 vout0x1 = __qsub(vout0x1, vmagic_bias_less_zero_point);
107
108 vout0x0 = __ssat(vout0x0, 8);
109 vout0x1 = __ssat(vout0x1, 8);
110
111 const uint32_t vout0 = (uint32_t) (uint8_t) vout0x0 | ((uint32_t) vout0x1 << 8);
112
113 uint32_t vout = vout0;
114
115 const int8x4_t voutput_min = (int8x4_t) params->fp32_armsimd32.output_min;
116 __ssub8((int8x4_t) vout, voutput_min);
117 vout = (uint32_t) __sel((uint8x4_t) vout, (uint8x4_t) voutput_min);
118
119 const int8x4_t voutput_max = (int8x4_t) params->fp32_armsimd32.output_max;
120 __ssub8((int8x4_t) vout, voutput_max);
121 vout = (uint32_t) __sel((uint8x4_t) voutput_max, (uint8x4_t) vout);
122
123 if XNN_LIKELY(nc >= 2) {
124 unaligned_store_u16(c0, (uint16_t) vout);
125
126 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
127
128 a = (const int8_t**restrict) ((uintptr_t) a - ks);
129 nc -= 2;
130 } else {
131 *c0 = (int8_t) vout;
132
133 nc = 0;
134 }
135 } while (nc != 0);
136 }
137