1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-vadd/neon.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2020 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_neon.h>
13
14 #include <xnnpack/vadd.h>
15
16
xnn_qs8_vadd_minmax_ukernel__neon_ld64_x8(size_t n,const int8_t * input_a,const int8_t * input_b,int8_t * output,const union xnn_qs8_add_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])17 void xnn_qs8_vadd_minmax_ukernel__neon_ld64_x8(
18 size_t n,
19 const int8_t* input_a,
20 const int8_t* input_b,
21 int8_t* output,
22 const union xnn_qs8_add_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
23 {
24 const int8x8_t va_zero_point = vld1_dup_s8(¶ms->neon.a_zero_point);
25 const int8x8_t vb_zero_point = vld1_dup_s8(¶ms->neon.b_zero_point);
26 const int32x4_t va_multiplier = vld1q_dup_s32(¶ms->neon.a_multiplier);
27 const int32x4_t vb_multiplier = vld1q_dup_s32(¶ms->neon.b_multiplier);
28 const int32x4_t vright_shift = vld1q_dup_s32(¶ms->neon.right_shift);
29 const int16x8_t voutput_zero_point = vld1q_dup_s16(¶ms->neon.output_zero_point);
30 const int8x8_t voutput_min = vld1_dup_s8(¶ms->neon.output_min);
31 const int8x8_t voutput_max = vld1_dup_s8(¶ms->neon.output_max);
32
33 for (; n >= 8 * sizeof(int8_t); n -= 8 * sizeof(int8_t)) {
34 const int8x8_t va01234567 = vld1_s8(input_a); input_a += 8;
35 const int8x8_t vb01234567 = vld1_s8(input_b); input_b += 8;
36
37 const int16x8_t vxa01234567 = vsubl_s8(va01234567, va_zero_point);
38 const int16x8_t vxb01234567 = vsubl_s8(vb01234567, vb_zero_point);
39
40 int32x4_t vacc0123 = vmulq_s32(vmovl_s16(vget_low_s16(vxa01234567)), va_multiplier);
41 int32x4_t vacc4567 = vmulq_s32(vmovl_s16(vget_high_s16(vxa01234567)), va_multiplier);
42
43 vacc0123 = vmlaq_s32(vacc0123, vmovl_s16(vget_low_s16(vxb01234567)), vb_multiplier);
44 vacc4567 = vmlaq_s32(vacc4567, vmovl_s16(vget_high_s16(vxb01234567)), vb_multiplier);
45
46 vacc0123 = vrshlq_s32(vacc0123, vright_shift);
47 vacc4567 = vrshlq_s32(vacc4567, vright_shift);
48
49 const int16x8_t vacc01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0123), vqmovn_s32(vacc4567)), voutput_zero_point);
50
51 int8x8_t vout01234567 = vqmovn_s16(vacc01234567);
52
53 vout01234567 = vmax_s8(vout01234567, voutput_min);
54
55 vout01234567 = vmin_s8(vout01234567, voutput_max);
56
57 vst1_s8(output, vout01234567); output += 8;
58 }
59 if XNN_UNLIKELY(n != 0) {
60 {
61 const int8x8_t va01234567 = vld1_s8(input_a);
62 const int8x8_t vb01234567 = vld1_s8(input_b);
63
64 const int16x8_t vxa01234567 = vsubl_s8(va01234567, va_zero_point);
65 const int16x8_t vxb01234567 = vsubl_s8(vb01234567, vb_zero_point);
66
67 int32x4_t vacc0123 = vmulq_s32(vmovl_s16(vget_low_s16(vxa01234567)), va_multiplier);
68 int32x4_t vacc4567 = vmulq_s32(vmovl_s16(vget_high_s16(vxa01234567)), va_multiplier);
69
70 vacc0123 = vmlaq_s32(vacc0123, vmovl_s16(vget_low_s16(vxb01234567)), vb_multiplier);
71 vacc4567 = vmlaq_s32(vacc4567, vmovl_s16(vget_high_s16(vxb01234567)), vb_multiplier);
72
73 vacc0123 = vrshlq_s32(vacc0123, vright_shift);
74 vacc4567 = vrshlq_s32(vacc4567, vright_shift);
75
76 const int16x8_t vacc01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0123), vqmovn_s32(vacc4567)), voutput_zero_point);
77
78 int8x8_t vout01234567 = vqmovn_s16(vacc01234567);
79 vout01234567 = vmax_s8(vout01234567, voutput_min);
80 vout01234567 = vmin_s8(vout01234567, voutput_max);
81
82 if (n & (4 * sizeof(int8_t))) {
83 vst1_lane_u32((void*) output, vreinterpret_u32_s8(vout01234567), 0); output += 4;
84 vout01234567 = vext_s8(vout01234567, vout01234567, 4);
85 }
86 if (n & (2 * sizeof(int8_t))) {
87 vst1_lane_u16((void*) output, vreinterpret_u16_s8(vout01234567), 0); output += 2;
88 vout01234567 = vext_s8(vout01234567, vout01234567, 2);
89 }
90 if (n & (1 * sizeof(int8_t))) {
91 vst1_lane_s8(output, vout01234567, 0);
92 }
93 }
94 }
95 }
96