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_qs8_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_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])20 void xnn_qs8_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_qs8_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 vscale = params->fp32_armsimd32.scale;
48 const float vmagic_bias = params->fp32_armsimd32.magic_bias;
49 do {
50 int32_t vacc0x0 = ((const int32_t*) w)[0];
51 int32_t vacc0x1 = ((const int32_t*) w)[1];
52 int32_t vacc1x0 = vacc0x0;
53 int32_t vacc1x1 = vacc0x1;
54 w = (const void*) ((const int32_t*) w + 2);
55
56 size_t k = kc;
57 do {
58 const int8x4_t va0 = (int8x4_t) unaligned_load_s32(a0); a0 += 4;
59 const int8x4_t va1 = (int8x4_t) unaligned_load_s32(a1); a1 += 4;
60
61 const int16x2_t va0c02 = __sxtb16(va0);
62 const int16x2_t va0c13 = __sxtb16(__ror(va0, 8));
63 const int16x2_t va1c02 = __sxtb16(va1);
64 const int16x2_t va1c13 = __sxtb16(__ror(va1, 8));
65
66 const int8x4_t vb0 = *((const int8x4_t*) w); w = (const int8_t*) w + 4;
67 const int16x2_t vb0c02 = __sxtb16(vb0);
68
69 vacc0x0 = __smlad(va0c02, vb0c02, vacc0x0);
70 vacc1x0 = __smlad(va1c02, vb0c02, vacc1x0);
71
72 const int16x2_t vb0c13 = __sxtb16(__ror(vb0, 8));
73 vacc0x0 = __smlad(va0c13, vb0c13, vacc0x0);
74 vacc1x0 = __smlad(va1c13, vb0c13, vacc1x0);
75 const int8x4_t vb1 = *((const int8x4_t*) w); w = (const int8_t*) w + 4;
76 const int16x2_t vb1c02 = __sxtb16(vb1);
77
78 vacc0x1 = __smlad(va0c02, vb1c02, vacc0x1);
79 vacc1x1 = __smlad(va1c02, vb1c02, vacc1x1);
80
81 const int16x2_t vb1c13 = __sxtb16(__ror(vb1, 8));
82 vacc0x1 = __smlad(va0c13, vb1c13, vacc0x1);
83 vacc1x1 = __smlad(va1c13, vb1c13, vacc1x1);
84
85 k -= 4 * sizeof(int8_t);
86 } while (k != 0);
87
88 float vfpacc0x0 = (float) vacc0x0;
89 float vfpacc0x1 = (float) vacc0x1;
90 float vfpacc1x0 = (float) vacc1x0;
91 float vfpacc1x1 = (float) vacc1x1;
92
93 vfpacc0x0 *= vscale;
94 vfpacc0x1 *= vscale;
95 vfpacc1x0 *= vscale;
96 vfpacc1x1 *= vscale;
97
98 vfpacc0x0 += vmagic_bias;
99 vfpacc0x1 += vmagic_bias;
100 vfpacc1x0 += vmagic_bias;
101 vfpacc1x1 += vmagic_bias;
102
103 int32_t vout0x0 = (int32_t) float_as_uint32(vfpacc0x0);
104 int32_t vout0x1 = (int32_t) float_as_uint32(vfpacc0x1);
105 int32_t vout1x0 = (int32_t) float_as_uint32(vfpacc1x0);
106 int32_t vout1x1 = (int32_t) float_as_uint32(vfpacc1x1);
107
108 const int32_t vmagic_bias_less_zero_point = params->fp32_armsimd32.magic_bias_less_zero_point;
109 vout0x0 = __qsub(vout0x0, vmagic_bias_less_zero_point);
110 vout0x1 = __qsub(vout0x1, vmagic_bias_less_zero_point);
111 vout1x0 = __qsub(vout1x0, vmagic_bias_less_zero_point);
112 vout1x1 = __qsub(vout1x1, vmagic_bias_less_zero_point);
113
114 vout0x0 = __ssat(vout0x0, 8);
115 vout0x1 = __ssat(vout0x1, 8);
116 vout1x0 = __ssat(vout1x0, 8);
117 vout1x1 = __ssat(vout1x1, 8);
118
119 const uint32_t vout0 = (uint32_t) (uint8_t) vout0x0 | ((uint32_t) vout0x1 << 8);
120 const uint32_t vout1 = (uint32_t) (uint8_t) vout1x0 | ((uint32_t) vout1x1 << 8);
121
122 uint32_t vout = (uint32_t) (uint16_t) vout0 | (vout1 << 16);
123
124 const int8x4_t voutput_min = (int8x4_t) params->fp32_armsimd32.output_min;
125 __ssub8((int8x4_t) vout, voutput_min);
126 vout = (uint32_t) __sel((uint8x4_t) vout, (uint8x4_t) voutput_min);
127
128 const int8x4_t voutput_max = (int8x4_t) params->fp32_armsimd32.output_max;
129 __ssub8((int8x4_t) vout, voutput_max);
130 vout = (uint32_t) __sel((uint8x4_t) voutput_max, (uint8x4_t) vout);
131
132 if XNN_LIKELY(nc >= 2) {
133 unaligned_store_u16(c0, (uint16_t) vout);
134 vout >>= 16;
135 unaligned_store_u16(c1, (uint16_t) vout);
136
137 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
138 a1 = (const int8_t*) ((uintptr_t) a1 - kc);
139
140 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
141 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
142
143 nc -= 2;
144 } else {
145 *c0 = (int8_t) vout;
146 vout >>= 16;
147 *c1 = (int8_t) vout;
148
149 nc = 0;
150 }
151 } while (nc != 0);
152 }
153