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_1x1c4__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_1x1c4__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 <= 1);
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
41 const float vmagic_bias = params->fp32_armsimd32.magic_bias;
42 do {
43 int32_t vacc0x0 = ((const int32_t*) w)[0];
44 w = (const void*) ((const int32_t*) w + 1);
45
46 size_t k = kc;
47 do {
48 const int8x4_t va0 = (int8x4_t) unaligned_load_s32(a0); a0 += 4;
49
50 const int16x2_t va0c02 = __sxtb16(va0);
51 const int16x2_t va0c13 = __sxtb16(__ror(va0, 8));
52
53 const int8x4_t vb0 = *((const int8x4_t*) w); w = (const int8_t*) w + 4;
54 const int16x2_t vb0c02 = __sxtb16(vb0);
55
56 vacc0x0 = __smlad(va0c02, vb0c02, vacc0x0);
57
58 const int16x2_t vb0c13 = __sxtb16(__ror(vb0, 8));
59 vacc0x0 = __smlad(va0c13, vb0c13, vacc0x0);
60
61 k -= 4 * sizeof(int8_t);
62 } while (k != 0);
63
64 float vfpacc0x0 = (float) vacc0x0;
65
66 const float vscale0 = ((const float*) w)[0];
67 vfpacc0x0 *= vscale0;
68 w = (const void*) ((const float*) w + 1);
69
70 vfpacc0x0 += vmagic_bias;
71
72 int32_t vout0x0 = (int32_t) float_as_uint32(vfpacc0x0);
73
74 const int32_t vmagic_bias_less_zero_point = params->fp32_armsimd32.magic_bias_less_zero_point;
75 vout0x0 = __qsub(vout0x0, vmagic_bias_less_zero_point);
76
77 vout0x0 = __ssat(vout0x0, 8);
78
79 const uint32_t vout0 = (uint32_t) vout0x0;
80
81 uint32_t vout = vout0;
82
83 const int8x4_t voutput_min = (int8x4_t) params->fp32_armsimd32.output_min;
84 __ssub8((int8x4_t) vout, voutput_min);
85 vout = (uint32_t) __sel((uint8x4_t) vout, (uint8x4_t) voutput_min);
86
87 const int8x4_t voutput_max = (int8x4_t) params->fp32_armsimd32.output_max;
88 __ssub8((int8x4_t) vout, voutput_max);
89 vout = (uint32_t) __sel((uint8x4_t) voutput_max, (uint8x4_t) vout);
90
91 *c0 = (int8_t) vout;
92
93 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
94
95 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
96
97 nc -= 1;
98 } while (nc != 0);
99 }
100