xref: /aosp_15_r20/external/XNNPACK/src/qs8-vadd/gen/minmax-neon-ld64-x16.c (revision 4bdc94577ba0e567308109d787f7fec7b531ce36)
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_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_ld64_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   const int8x8_t va_zero_point = vld1_dup_s8(&params->neon.a_zero_point);
25   const int8x8_t vb_zero_point = vld1_dup_s8(&params->neon.b_zero_point);
26   const int32x4_t va_multiplier = vld1q_dup_s32(&params->neon.a_multiplier);
27   const int32x4_t vb_multiplier = vld1q_dup_s32(&params->neon.b_multiplier);
28   const int32x4_t vright_shift = vld1q_dup_s32(&params->neon.right_shift);
29   const int16x8_t voutput_zero_point = vld1q_dup_s16(&params->neon.output_zero_point);
30   const int8x16_t voutput_min = vld1q_dup_s8(&params->neon.output_min);
31   const int8x16_t voutput_max = vld1q_dup_s8(&params->neon.output_max);
32 
33   for (; n >= 16 * sizeof(int8_t); n -= 16 * 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     const int8x8_t va89ABCDEF = vld1_s8(input_a); input_a += 8;
37     const int8x8_t vb89ABCDEF = vld1_s8(input_b); input_b += 8;
38 
39     const int16x8_t vxa01234567 = vsubl_s8(va01234567, va_zero_point);
40     const int16x8_t vxb01234567 = vsubl_s8(vb01234567, vb_zero_point);
41     const int16x8_t vxa89ABCDEF = vsubl_s8(va89ABCDEF, va_zero_point);
42     const int16x8_t vxb89ABCDEF = vsubl_s8(vb89ABCDEF, vb_zero_point);
43 
44     int32x4_t vacc0123 = vmulq_s32(vmovl_s16(vget_low_s16(vxa01234567)), va_multiplier);
45     int32x4_t vacc4567 = vmulq_s32(vmovl_s16(vget_high_s16(vxa01234567)), va_multiplier);
46     int32x4_t vacc89AB = vmulq_s32(vmovl_s16(vget_low_s16(vxa89ABCDEF)), va_multiplier);
47     int32x4_t vaccCDEF = vmulq_s32(vmovl_s16(vget_high_s16(vxa89ABCDEF)), va_multiplier);
48 
49     vacc0123 = vmlaq_s32(vacc0123, vmovl_s16(vget_low_s16(vxb01234567)), vb_multiplier);
50     vacc4567 = vmlaq_s32(vacc4567, vmovl_s16(vget_high_s16(vxb01234567)), vb_multiplier);
51     vacc89AB = vmlaq_s32(vacc89AB, vmovl_s16(vget_low_s16(vxb89ABCDEF)), vb_multiplier);
52     vaccCDEF = vmlaq_s32(vaccCDEF, vmovl_s16(vget_high_s16(vxb89ABCDEF)), vb_multiplier);
53 
54     vacc0123 = vrshlq_s32(vacc0123, vright_shift);
55     vacc4567 = vrshlq_s32(vacc4567, vright_shift);
56     vacc89AB = vrshlq_s32(vacc89AB, vright_shift);
57     vaccCDEF = vrshlq_s32(vaccCDEF, vright_shift);
58 
59     const int16x8_t vacc01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0123), vqmovn_s32(vacc4567)), voutput_zero_point);
60     const int16x8_t vacc89ABCDEF = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc89AB), vqmovn_s32(vaccCDEF)), voutput_zero_point);
61 
62     int8x16_t vout0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc01234567), vqmovn_s16(vacc89ABCDEF));
63 
64     vout0123456789ABCDEF = vmaxq_s8(vout0123456789ABCDEF, voutput_min);
65 
66     vout0123456789ABCDEF = vminq_s8(vout0123456789ABCDEF, voutput_max);
67 
68     vst1q_s8(output, vout0123456789ABCDEF); output += 16;
69   }
70   if XNN_UNLIKELY(n != 0) {
71     do {
72       const int8x8_t va01234567 = vld1_s8(input_a); input_a += 8;
73       const int8x8_t vb01234567 = vld1_s8(input_b); input_b += 8;
74 
75       const int16x8_t vxa01234567 = vsubl_s8(va01234567, va_zero_point);
76       const int16x8_t vxb01234567 = vsubl_s8(vb01234567, vb_zero_point);
77 
78       int32x4_t vacc0123 = vmulq_s32(vmovl_s16(vget_low_s16(vxa01234567)), va_multiplier);
79       int32x4_t vacc4567 = vmulq_s32(vmovl_s16(vget_high_s16(vxa01234567)), va_multiplier);
80 
81       vacc0123 = vmlaq_s32(vacc0123, vmovl_s16(vget_low_s16(vxb01234567)), vb_multiplier);
82       vacc4567 = vmlaq_s32(vacc4567, vmovl_s16(vget_high_s16(vxb01234567)), vb_multiplier);
83 
84       vacc0123 = vrshlq_s32(vacc0123, vright_shift);
85       vacc4567 = vrshlq_s32(vacc4567, vright_shift);
86 
87       const int16x8_t vacc01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0123), vqmovn_s32(vacc4567)), voutput_zero_point);
88 
89       int8x8_t vout01234567 = vqmovn_s16(vacc01234567);
90       vout01234567 = vmax_s8(vout01234567, vget_low_s8(voutput_min));
91       vout01234567 = vmin_s8(vout01234567, vget_low_s8(voutput_max));
92 
93       if XNN_LIKELY(n >= (8 * sizeof(int8_t))) {
94         vst1_s8(output, vout01234567); output += 8;
95         n -= 8 * sizeof(int8_t);
96       } else {
97         if (n & (4 * sizeof(int8_t))) {
98           vst1_lane_u32((void*) output, vreinterpret_u32_s8(vout01234567), 0); output += 4;
99           vout01234567 = vext_s8(vout01234567, vout01234567, 4);
100         }
101         if (n & (2 * sizeof(int8_t))) {
102           vst1_lane_u16((void*) output, vreinterpret_u16_s8(vout01234567), 0); output += 2;
103           vout01234567 = vext_s8(vout01234567, vout01234567, 2);
104         }
105         if (n & (1 * sizeof(int8_t))) {
106           vst1_lane_s8(output, vout01234567, 0);
107         }
108         n = 0;
109       }
110     } while (n != 0);
111   }
112 }
113