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_1x1c4__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_1x1c4__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 w = (const void*) ((const int32_t*) w + 1);
51
52 size_t p = ks;
53 do {
54 const int8_t* restrict a0 = a[0];
55 assert(a0 != NULL);
56 if XNN_UNPREDICTABLE(a0 != zero) {
57 a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
58 }
59 a += 1;
60
61 size_t k = kc;
62 do {
63 const int8x4_t va0 = (int8x4_t) unaligned_load_s32(a0); a0 += 4;
64
65 const int16x2_t va0c02 = __sxtb16(va0);
66 const int16x2_t va0c13 = __sxtb16(__ror(va0, 8));
67
68 const int8x4_t vb0 = *((const int8x4_t*) w); w = (const int8_t*) w + 4;
69 const int16x2_t vb0c02 = __sxtb16(vb0);
70
71 vacc0x0 = __smlad(va0c02, vb0c02, vacc0x0);
72
73 const int16x2_t vb0c13 = __sxtb16(__ror(vb0, 8));
74 vacc0x0 = __smlad(va0c13, vb0c13, vacc0x0);
75
76 k -= 4 * sizeof(int8_t);
77 } while (k != 0);
78 p -= 1 * sizeof(void*);
79 } while (p != 0);
80
81 float vfpacc0x0 = (float) vacc0x0;
82
83 const float vscale0 = ((const float*) w)[0];
84 vfpacc0x0 *= vscale0;
85 w = (const void*) ((const float*) w + 1);
86
87 vfpacc0x0 += vmagic_bias;
88
89 int32_t vout0x0 = (int32_t) float_as_uint32(vfpacc0x0);
90
91 const int32_t vmagic_bias_less_zero_point = params->fp32_armsimd32.magic_bias_less_zero_point;
92 vout0x0 = __qsub(vout0x0, vmagic_bias_less_zero_point);
93
94 vout0x0 = __ssat(vout0x0, 8);
95
96 const uint32_t vout0 = (uint32_t) vout0x0;
97
98 uint32_t vout = vout0;
99
100 const int8x4_t voutput_min = (int8x4_t) params->fp32_armsimd32.output_min;
101 __ssub8((int8x4_t) vout, voutput_min);
102 vout = (uint32_t) __sel((uint8x4_t) vout, (uint8x4_t) voutput_min);
103
104 const int8x4_t voutput_max = (int8x4_t) params->fp32_armsimd32.output_max;
105 __ssub8((int8x4_t) vout, voutput_max);
106 vout = (uint32_t) __sel((uint8x4_t) voutput_max, (uint8x4_t) vout);
107
108 *c0 = (int8_t) vout;
109
110 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
111
112 a = (const int8_t**restrict) ((uintptr_t) a - ks);
113 nc -= 1;
114 } while (nc != 0);
115 }
116