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_ld128_x16(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_ld128_x16(
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 #if XNN_ARCH_ARM64
25 const int8x16_t va_zero_point = vld1q_dup_s8(¶ms->neon.a_zero_point);
26 const int8x16_t vb_zero_point = vld1q_dup_s8(¶ms->neon.b_zero_point);
27 #else
28 const int8x8_t va_zero_point = vld1_dup_s8(¶ms->neon.a_zero_point);
29 const int8x8_t vb_zero_point = vld1_dup_s8(¶ms->neon.b_zero_point);
30 #endif
31 const int32x4_t va_multiplier = vld1q_dup_s32(¶ms->neon.a_multiplier);
32 const int32x4_t vb_multiplier = vld1q_dup_s32(¶ms->neon.b_multiplier);
33 const int32x4_t vright_shift = vld1q_dup_s32(¶ms->neon.right_shift);
34 const int16x8_t voutput_zero_point = vld1q_dup_s16(¶ms->neon.output_zero_point);
35 const int8x16_t voutput_min = vld1q_dup_s8(¶ms->neon.output_min);
36 const int8x16_t voutput_max = vld1q_dup_s8(¶ms->neon.output_max);
37
38 for (; n >= 16 * sizeof(int8_t); n -= 16 * sizeof(int8_t)) {
39 const int8x16_t va0123456789ABCDEF = vld1q_s8(input_a); input_a += 16;
40 const int8x16_t vb0123456789ABCDEF = vld1q_s8(input_b); input_b += 16;
41
42 #if XNN_ARCH_ARM64
43 const int16x8_t vxa01234567 = vsubl_s8(vget_low_s8(va0123456789ABCDEF), vget_low_s8(va_zero_point));
44 const int16x8_t vxa89ABCDEF = vsubl_high_s8(va0123456789ABCDEF, va_zero_point);
45 const int16x8_t vxb01234567 = vsubl_s8(vget_low_s8(vb0123456789ABCDEF), vget_low_s8(vb_zero_point));
46 const int16x8_t vxb89ABCDEF = vsubl_high_s8(vb0123456789ABCDEF, vb_zero_point);
47 #else // !XNN_ARCH_ARM64
48 const int16x8_t vxa01234567 = vsubl_s8(vget_low_s8(va0123456789ABCDEF), va_zero_point);
49 const int16x8_t vxa89ABCDEF = vsubl_s8(vget_high_s8(va0123456789ABCDEF), va_zero_point);
50 const int16x8_t vxb01234567 = vsubl_s8(vget_low_s8(vb0123456789ABCDEF), vb_zero_point);
51 const int16x8_t vxb89ABCDEF = vsubl_s8(vget_high_s8(vb0123456789ABCDEF), vb_zero_point);
52 #endif // XNN_ARCH_ARM64
53
54 int32x4_t vacc0123 = vmulq_s32(vmovl_s16(vget_low_s16(vxa01234567)), va_multiplier);
55 int32x4_t vacc4567 = vmulq_s32(vmovl_s16(vget_high_s16(vxa01234567)), va_multiplier);
56 int32x4_t vacc89AB = vmulq_s32(vmovl_s16(vget_low_s16(vxa89ABCDEF)), va_multiplier);
57 int32x4_t vaccCDEF = vmulq_s32(vmovl_s16(vget_high_s16(vxa89ABCDEF)), va_multiplier);
58
59 vacc0123 = vmlaq_s32(vacc0123, vmovl_s16(vget_low_s16(vxb01234567)), vb_multiplier);
60 vacc4567 = vmlaq_s32(vacc4567, vmovl_s16(vget_high_s16(vxb01234567)), vb_multiplier);
61 vacc89AB = vmlaq_s32(vacc89AB, vmovl_s16(vget_low_s16(vxb89ABCDEF)), vb_multiplier);
62 vaccCDEF = vmlaq_s32(vaccCDEF, vmovl_s16(vget_high_s16(vxb89ABCDEF)), vb_multiplier);
63
64 vacc0123 = vrshlq_s32(vacc0123, vright_shift);
65 vacc4567 = vrshlq_s32(vacc4567, vright_shift);
66 vacc89AB = vrshlq_s32(vacc89AB, vright_shift);
67 vaccCDEF = vrshlq_s32(vaccCDEF, vright_shift);
68
69 const int16x8_t vacc01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0123), vqmovn_s32(vacc4567)), voutput_zero_point);
70 const int16x8_t vacc89ABCDEF = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc89AB), vqmovn_s32(vaccCDEF)), voutput_zero_point);
71
72 int8x16_t vout0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc01234567), vqmovn_s16(vacc89ABCDEF));
73
74 vout0123456789ABCDEF = vmaxq_s8(vout0123456789ABCDEF, voutput_min);
75
76 vout0123456789ABCDEF = vminq_s8(vout0123456789ABCDEF, voutput_max);
77
78 vst1q_s8(output, vout0123456789ABCDEF); output += 16;
79 }
80 if XNN_UNLIKELY(n != 0) {
81 do {
82 const int8x8_t va01234567 = vld1_s8(input_a); input_a += 8;
83 const int8x8_t vb01234567 = vld1_s8(input_b); input_b += 8;
84
85 #if XNN_ARCH_ARM64
86 const int16x8_t vxa01234567 = vsubl_s8(va01234567, vget_low_s8(va_zero_point));
87 const int16x8_t vxb01234567 = vsubl_s8(vb01234567, vget_low_s8(vb_zero_point));
88 #else // !XNN_ARCH_ARM64
89 const int16x8_t vxa01234567 = vsubl_s8(va01234567, va_zero_point);
90 const int16x8_t vxb01234567 = vsubl_s8(vb01234567, vb_zero_point);
91 #endif // XNN_ARCH_ARM64
92
93 int32x4_t vacc0123 = vmulq_s32(vmovl_s16(vget_low_s16(vxa01234567)), va_multiplier);
94 int32x4_t vacc4567 = vmulq_s32(vmovl_s16(vget_high_s16(vxa01234567)), va_multiplier);
95
96 vacc0123 = vmlaq_s32(vacc0123, vmovl_s16(vget_low_s16(vxb01234567)), vb_multiplier);
97 vacc4567 = vmlaq_s32(vacc4567, vmovl_s16(vget_high_s16(vxb01234567)), vb_multiplier);
98
99 vacc0123 = vrshlq_s32(vacc0123, vright_shift);
100 vacc4567 = vrshlq_s32(vacc4567, vright_shift);
101
102 const int16x8_t vacc01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0123), vqmovn_s32(vacc4567)), voutput_zero_point);
103
104 int8x8_t vout01234567 = vqmovn_s16(vacc01234567);
105 vout01234567 = vmax_s8(vout01234567, vget_low_s8(voutput_min));
106 vout01234567 = vmin_s8(vout01234567, vget_low_s8(voutput_max));
107
108 if XNN_LIKELY(n >= (8 * sizeof(int8_t))) {
109 vst1_s8(output, vout01234567); output += 8;
110 n -= 8 * sizeof(int8_t);
111 } else {
112 if (n & (4 * sizeof(int8_t))) {
113 vst1_lane_u32((void*) output, vreinterpret_u32_s8(vout01234567), 0); output += 4;
114 vout01234567 = vext_s8(vout01234567, vout01234567, 4);
115 }
116 if (n & (2 * sizeof(int8_t))) {
117 vst1_lane_u16((void*) output, vreinterpret_u16_s8(vout01234567), 0); output += 2;
118 vout01234567 = vext_s8(vout01234567, vout01234567, 2);
119 }
120 if (n & (1 * sizeof(int8_t))) {
121 vst1_lane_s8(output, vout01234567, 0);
122 }
123 n = 0;
124 }
125 } while (n != 0);
126 }
127 }
128