1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-igemm/c8-neon-mull.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2021 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/igemm.h>
15 #include <xnnpack/intrinsics-polyfill.h>
16 #include <xnnpack/math.h>
17
18
xnn_qc8_igemm_minmax_fp32_ukernel_2x8c8__neonv8_mlal(size_t mr,size_t nc,size_t kc,size_t ks,const int8_t ** restrict a,const void * restrict w,int8_t * restrict c,size_t cm_stride,size_t cn_stride,size_t a_offset,const int8_t * zero,const union xnn_qc8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_qc8_igemm_minmax_fp32_ukernel_2x8c8__neonv8_mlal(
20 size_t mr,
21 size_t nc,
22 size_t kc,
23 size_t ks,
24 const int8_t** restrict a,
25 const void* restrict w,
26 int8_t* restrict c,
27 size_t cm_stride,
28 size_t cn_stride,
29 size_t a_offset,
30 const int8_t* zero,
31 const union xnn_qc8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
32 {
33 assert(mr != 0);
34 assert(mr <= 2);
35 assert(nc != 0);
36 assert(kc != 0);
37 assert(ks != 0);
38 assert(ks % (2 * sizeof(void*)) == 0);
39 assert(a_offset % sizeof(int8_t) == 0);
40 assert(a != NULL);
41 assert(w != NULL);
42 assert(c != NULL);
43
44 kc = round_up_po2(kc, 8 * sizeof(int8_t));
45 int8_t* c0 = c;
46 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
47 if XNN_UNPREDICTABLE(mr != 2) {
48 c1 = c0;
49 }
50
51 do {
52 int32x4_t vacc0x0 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
53 int32x4_t vacc0x1 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
54 int32x4_t vacc0x2 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
55 int32x4_t vacc0x3 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
56 int32x4_t vacc0x4 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
57 int32x4_t vacc0x5 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
58 int32x4_t vacc0x6 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
59 int32x4_t vacc0x7 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
60 int32x4_t vacc1x0 = vacc0x0;
61 int32x4_t vacc1x1 = vacc0x1;
62 int32x4_t vacc1x2 = vacc0x2;
63 int32x4_t vacc1x3 = vacc0x3;
64 int32x4_t vacc1x4 = vacc0x4;
65 int32x4_t vacc1x5 = vacc0x5;
66 int32x4_t vacc1x6 = vacc0x6;
67 int32x4_t vacc1x7 = vacc0x7;
68
69 size_t p = ks;
70 do {
71 const int8_t* restrict a0 = a[0];
72 if XNN_UNPREDICTABLE(a0 != zero) {
73 a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
74 }
75 const int8_t* restrict a1 = a[1];
76 if XNN_UNPREDICTABLE(a1 != zero) {
77 a1 = (const int8_t*) ((uintptr_t) a1 + a_offset);
78 }
79 a += 2;
80
81 size_t k = kc;
82 // 2x partial unrolled loop to load 16 bytes at a time using MLA.
83 while (k >= 16 * sizeof(int8_t)) {
84 const int8x8_t va0x0 = vld1_s8(a0); a0 += 8;
85 const int8x8_t va0x1 = vld1_s8(a0); a0 += 8;
86 const int8x8_t va1x0 = vld1_s8(a1); a1 += 8;
87 const int8x8_t va1x1 = vld1_s8(a1); a1 += 8;
88
89 const int8x8_t vb0x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
90 const int8x8_t vb1x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
91 const int8x8_t vb2x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
92 const int8x8_t vb3x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
93 const int8x8_t vb4x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
94 const int8x8_t vb5x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
95 const int8x8_t vb6x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
96 const int8x8_t vb7x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
97
98 const int8x8_t vb0x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
99 int16x8_t vprod0x0 = vmull_s8(vb0x0, va0x0);
100 int16x8_t vprod1x0 = vmull_s8(vb0x0, va1x0);
101 vprod0x0 = vmlal_s8(vprod0x0, vb0x1, va0x1);
102 vprod1x0 = vmlal_s8(vprod1x0, vb0x1, va1x1);
103 vacc0x0 = vpadalq_s16(vacc0x0, vprod0x0);
104 vacc1x0 = vpadalq_s16(vacc1x0, vprod1x0);
105 const int8x8_t vb1x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
106 int16x8_t vprod0x1 = vmull_s8(vb1x0, va0x0);
107 int16x8_t vprod1x1 = vmull_s8(vb1x0, va1x0);
108 vprod0x1 = vmlal_s8(vprod0x1, vb1x1, va0x1);
109 vprod1x1 = vmlal_s8(vprod1x1, vb1x1, va1x1);
110 vacc0x1 = vpadalq_s16(vacc0x1, vprod0x1);
111 vacc1x1 = vpadalq_s16(vacc1x1, vprod1x1);
112 const int8x8_t vb2x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
113 int16x8_t vprod0x2 = vmull_s8(vb2x0, va0x0);
114 int16x8_t vprod1x2 = vmull_s8(vb2x0, va1x0);
115 vprod0x2 = vmlal_s8(vprod0x2, vb2x1, va0x1);
116 vprod1x2 = vmlal_s8(vprod1x2, vb2x1, va1x1);
117 vacc0x2 = vpadalq_s16(vacc0x2, vprod0x2);
118 vacc1x2 = vpadalq_s16(vacc1x2, vprod1x2);
119 const int8x8_t vb3x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
120 int16x8_t vprod0x3 = vmull_s8(vb3x0, va0x0);
121 int16x8_t vprod1x3 = vmull_s8(vb3x0, va1x0);
122 vprod0x3 = vmlal_s8(vprod0x3, vb3x1, va0x1);
123 vprod1x3 = vmlal_s8(vprod1x3, vb3x1, va1x1);
124 vacc0x3 = vpadalq_s16(vacc0x3, vprod0x3);
125 vacc1x3 = vpadalq_s16(vacc1x3, vprod1x3);
126 const int8x8_t vb4x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
127 int16x8_t vprod0x4 = vmull_s8(vb4x0, va0x0);
128 int16x8_t vprod1x4 = vmull_s8(vb4x0, va1x0);
129 vprod0x4 = vmlal_s8(vprod0x4, vb4x1, va0x1);
130 vprod1x4 = vmlal_s8(vprod1x4, vb4x1, va1x1);
131 vacc0x4 = vpadalq_s16(vacc0x4, vprod0x4);
132 vacc1x4 = vpadalq_s16(vacc1x4, vprod1x4);
133 const int8x8_t vb5x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
134 int16x8_t vprod0x5 = vmull_s8(vb5x0, va0x0);
135 int16x8_t vprod1x5 = vmull_s8(vb5x0, va1x0);
136 vprod0x5 = vmlal_s8(vprod0x5, vb5x1, va0x1);
137 vprod1x5 = vmlal_s8(vprod1x5, vb5x1, va1x1);
138 vacc0x5 = vpadalq_s16(vacc0x5, vprod0x5);
139 vacc1x5 = vpadalq_s16(vacc1x5, vprod1x5);
140 const int8x8_t vb6x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
141 int16x8_t vprod0x6 = vmull_s8(vb6x0, va0x0);
142 int16x8_t vprod1x6 = vmull_s8(vb6x0, va1x0);
143 vprod0x6 = vmlal_s8(vprod0x6, vb6x1, va0x1);
144 vprod1x6 = vmlal_s8(vprod1x6, vb6x1, va1x1);
145 vacc0x6 = vpadalq_s16(vacc0x6, vprod0x6);
146 vacc1x6 = vpadalq_s16(vacc1x6, vprod1x6);
147 const int8x8_t vb7x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
148 int16x8_t vprod0x7 = vmull_s8(vb7x0, va0x0);
149 int16x8_t vprod1x7 = vmull_s8(vb7x0, va1x0);
150 vprod0x7 = vmlal_s8(vprod0x7, vb7x1, va0x1);
151 vprod1x7 = vmlal_s8(vprod1x7, vb7x1, va1x1);
152 vacc0x7 = vpadalq_s16(vacc0x7, vprod0x7);
153 vacc1x7 = vpadalq_s16(vacc1x7, vprod1x7);
154
155 k -= 16 * sizeof(int8_t);
156 }
157
158 // Handle 8 bytes at a time using MUL.
159 if (k != 0) {
160 const int8x8_t va0 = vld1_s8(a0); a0 += 8;
161 const int8x8_t va1 = vld1_s8(a1); a1 += 8;
162
163 const int8x8_t vb0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
164 const int16x8_t vprod0x0 = vmull_s8(vb0, va0);
165 const int16x8_t vprod1x0 = vmull_s8(vb0, va1);
166 vacc0x0 = vpadalq_s16(vacc0x0, vprod0x0);
167 vacc1x0 = vpadalq_s16(vacc1x0, vprod1x0);
168 const int8x8_t vb1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
169 const int16x8_t vprod0x1 = vmull_s8(vb1, va0);
170 const int16x8_t vprod1x1 = vmull_s8(vb1, va1);
171 vacc0x1 = vpadalq_s16(vacc0x1, vprod0x1);
172 vacc1x1 = vpadalq_s16(vacc1x1, vprod1x1);
173 const int8x8_t vb2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
174 const int16x8_t vprod0x2 = vmull_s8(vb2, va0);
175 const int16x8_t vprod1x2 = vmull_s8(vb2, va1);
176 vacc0x2 = vpadalq_s16(vacc0x2, vprod0x2);
177 vacc1x2 = vpadalq_s16(vacc1x2, vprod1x2);
178 const int8x8_t vb3 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
179 const int16x8_t vprod0x3 = vmull_s8(vb3, va0);
180 const int16x8_t vprod1x3 = vmull_s8(vb3, va1);
181 vacc0x3 = vpadalq_s16(vacc0x3, vprod0x3);
182 vacc1x3 = vpadalq_s16(vacc1x3, vprod1x3);
183 const int8x8_t vb4 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
184 const int16x8_t vprod0x4 = vmull_s8(vb4, va0);
185 const int16x8_t vprod1x4 = vmull_s8(vb4, va1);
186 vacc0x4 = vpadalq_s16(vacc0x4, vprod0x4);
187 vacc1x4 = vpadalq_s16(vacc1x4, vprod1x4);
188 const int8x8_t vb5 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
189 const int16x8_t vprod0x5 = vmull_s8(vb5, va0);
190 const int16x8_t vprod1x5 = vmull_s8(vb5, va1);
191 vacc0x5 = vpadalq_s16(vacc0x5, vprod0x5);
192 vacc1x5 = vpadalq_s16(vacc1x5, vprod1x5);
193 const int8x8_t vb6 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
194 const int16x8_t vprod0x6 = vmull_s8(vb6, va0);
195 const int16x8_t vprod1x6 = vmull_s8(vb6, va1);
196 vacc0x6 = vpadalq_s16(vacc0x6, vprod0x6);
197 vacc1x6 = vpadalq_s16(vacc1x6, vprod1x6);
198 const int8x8_t vb7 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
199 const int16x8_t vprod0x7 = vmull_s8(vb7, va0);
200 const int16x8_t vprod1x7 = vmull_s8(vb7, va1);
201 vacc0x7 = vpadalq_s16(vacc0x7, vprod0x7);
202 vacc1x7 = vpadalq_s16(vacc1x7, vprod1x7);
203
204 k -= 8 * sizeof(int8_t);
205 }
206
207 p -= 2 * sizeof(void*);
208 } while (p != 0);
209
210 #if XNN_ARCH_ARM64
211 const int32x4_t vsum0x01 = vpaddq_s32(vacc0x0, vacc0x1);
212 const int32x4_t vsum0x23 = vpaddq_s32(vacc0x2, vacc0x3);
213 const int32x4_t vsum0x45 = vpaddq_s32(vacc0x4, vacc0x5);
214 const int32x4_t vsum0x67 = vpaddq_s32(vacc0x6, vacc0x7);
215 const int32x4_t vsum1x01 = vpaddq_s32(vacc1x0, vacc1x1);
216 const int32x4_t vsum1x23 = vpaddq_s32(vacc1x2, vacc1x3);
217 const int32x4_t vsum1x45 = vpaddq_s32(vacc1x4, vacc1x5);
218 const int32x4_t vsum1x67 = vpaddq_s32(vacc1x6, vacc1x7);
219
220 int32x4_t vacc0x0123 = vpaddq_s32(vsum0x01, vsum0x23);
221 int32x4_t vacc0x4567 = vpaddq_s32(vsum0x45, vsum0x67);
222 int32x4_t vacc1x0123 = vpaddq_s32(vsum1x01, vsum1x23);
223 int32x4_t vacc1x4567 = vpaddq_s32(vsum1x45, vsum1x67);
224 #else
225 const int32x2_t vpsum0x0 = vadd_s32(vget_low_s32(vacc0x0), vget_high_s32(vacc0x0));
226 const int32x2_t vpsum0x1 = vadd_s32(vget_low_s32(vacc0x1), vget_high_s32(vacc0x1));
227 const int32x2_t vpsum0x2 = vadd_s32(vget_low_s32(vacc0x2), vget_high_s32(vacc0x2));
228 const int32x2_t vpsum0x3 = vadd_s32(vget_low_s32(vacc0x3), vget_high_s32(vacc0x3));
229 const int32x2_t vsum0x01 = vpadd_s32(vpsum0x0, vpsum0x1);
230 const int32x2_t vsum0x23 = vpadd_s32(vpsum0x2, vpsum0x3);
231 int32x4_t vacc0x0123 = vcombine_s32(vsum0x01, vsum0x23 );
232 const int32x2_t vpsum0x4 = vadd_s32(vget_low_s32(vacc0x4), vget_high_s32(vacc0x4));
233 const int32x2_t vpsum0x5 = vadd_s32(vget_low_s32(vacc0x5), vget_high_s32(vacc0x5));
234 const int32x2_t vpsum0x6 = vadd_s32(vget_low_s32(vacc0x6), vget_high_s32(vacc0x6));
235 const int32x2_t vpsum0x7 = vadd_s32(vget_low_s32(vacc0x7), vget_high_s32(vacc0x7));
236 const int32x2_t vsum0x45 = vpadd_s32(vpsum0x4, vpsum0x5);
237 const int32x2_t vsum0x67 = vpadd_s32(vpsum0x6, vpsum0x7);
238 int32x4_t vacc0x4567 = vcombine_s32(vsum0x45, vsum0x67 );
239 const int32x2_t vpsum1x0 = vadd_s32(vget_low_s32(vacc1x0), vget_high_s32(vacc1x0));
240 const int32x2_t vpsum1x1 = vadd_s32(vget_low_s32(vacc1x1), vget_high_s32(vacc1x1));
241 const int32x2_t vpsum1x2 = vadd_s32(vget_low_s32(vacc1x2), vget_high_s32(vacc1x2));
242 const int32x2_t vpsum1x3 = vadd_s32(vget_low_s32(vacc1x3), vget_high_s32(vacc1x3));
243 const int32x2_t vsum1x01 = vpadd_s32(vpsum1x0, vpsum1x1);
244 const int32x2_t vsum1x23 = vpadd_s32(vpsum1x2, vpsum1x3);
245 int32x4_t vacc1x0123 = vcombine_s32(vsum1x01, vsum1x23 );
246 const int32x2_t vpsum1x4 = vadd_s32(vget_low_s32(vacc1x4), vget_high_s32(vacc1x4));
247 const int32x2_t vpsum1x5 = vadd_s32(vget_low_s32(vacc1x5), vget_high_s32(vacc1x5));
248 const int32x2_t vpsum1x6 = vadd_s32(vget_low_s32(vacc1x6), vget_high_s32(vacc1x6));
249 const int32x2_t vpsum1x7 = vadd_s32(vget_low_s32(vacc1x7), vget_high_s32(vacc1x7));
250 const int32x2_t vsum1x45 = vpadd_s32(vpsum1x4, vpsum1x5);
251 const int32x2_t vsum1x67 = vpadd_s32(vpsum1x6, vpsum1x7);
252 int32x4_t vacc1x4567 = vcombine_s32(vsum1x45, vsum1x67 );
253 #endif
254
255 float32x4_t vfpacc0x0123 = vcvtq_f32_s32(vacc0x0123);
256 float32x4_t vfpacc0x4567 = vcvtq_f32_s32(vacc0x4567);
257 float32x4_t vfpacc1x0123 = vcvtq_f32_s32(vacc1x0123);
258 float32x4_t vfpacc1x4567 = vcvtq_f32_s32(vacc1x4567);
259
260 const float32x4_t vscale0123 = vld1q_f32((const float*) w); w = (const void*) ((const float*) w + 4);
261 vfpacc0x0123 = vmulq_f32(vfpacc0x0123, vscale0123);
262 vfpacc1x0123 = vmulq_f32(vfpacc1x0123, vscale0123);
263 const float32x4_t vscale4567 = vld1q_f32((const float*) w); w = (const void*) ((const float*) w + 4);
264 vfpacc0x4567 = vmulq_f32(vfpacc0x4567, vscale4567);
265 vfpacc1x4567 = vmulq_f32(vfpacc1x4567, vscale4567);
266
267 vacc0x0123 = vcvtnq_s32_f32(vfpacc0x0123);
268 vacc0x4567 = vcvtnq_s32_f32(vfpacc0x4567);
269 vacc1x0123 = vcvtnq_s32_f32(vfpacc1x0123);
270 vacc1x4567 = vcvtnq_s32_f32(vfpacc1x4567);
271
272 const int16x8_t voutput_zero_point = vld1q_dup_s16(¶ms->fp32_neonv8.output_zero_point);
273 #if XNN_ARCH_ARM64
274 int16x8_t vacc0x01234567 = vqmovn_high_s32(vqmovn_s32(vacc0x0123), vacc0x4567);
275 int16x8_t vacc1x01234567 = vqmovn_high_s32(vqmovn_s32(vacc1x0123), vacc1x4567);
276
277 vacc0x01234567 = vqaddq_s16(vacc0x01234567, voutput_zero_point);
278 vacc1x01234567 = vqaddq_s16(vacc1x01234567, voutput_zero_point);
279
280 int8x16_t vout0x01234567_1x01234567 = vqmovn_high_s16(vqmovn_s16(vacc0x01234567), vacc1x01234567);
281 #else
282 int16x8_t vacc0x01234567 = vcombine_s16(vqmovn_s32(vacc0x0123), vqmovn_s32(vacc0x4567));
283 int16x8_t vacc1x01234567 = vcombine_s16(vqmovn_s32(vacc1x0123), vqmovn_s32(vacc1x4567));
284
285 vacc0x01234567 = vqaddq_s16(vacc0x01234567, voutput_zero_point);
286 vacc1x01234567 = vqaddq_s16(vacc1x01234567, voutput_zero_point);
287
288 int8x16_t vout0x01234567_1x01234567 = vcombine_s8(vqmovn_s16(vacc0x01234567), vqmovn_s16(vacc1x01234567));
289 #endif
290
291 const int8x16_t voutput_min = vld1q_dup_s8(¶ms->fp32_neonv8.output_min);
292 vout0x01234567_1x01234567 = vmaxq_s8(vout0x01234567_1x01234567, voutput_min);
293
294 const int8x16_t voutput_max = vld1q_dup_s8(¶ms->fp32_neonv8.output_max);
295 vout0x01234567_1x01234567 = vminq_s8(vout0x01234567_1x01234567, voutput_max);
296
297 if (nc >= 8) {
298 vst1_s8(c1 + 0, vget_high_s8(vout0x01234567_1x01234567));
299 vst1_s8(c0 + 0, vget_low_s8(vout0x01234567_1x01234567));
300
301 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
302 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
303
304 a = (const int8_t**restrict) ((uintptr_t) a - ks);
305
306 nc -= 8;
307 } else {
308 if (nc & 4) {
309 vst1q_lane_u32((void*) c1, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 2); c1 += 4;
310 vst1q_lane_u32((void*) c0, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 0); c0 += 4;
311 vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 4);
312 }
313 if (nc & 2) {
314 vst1q_lane_u16((void*) c1, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 4); c1 += 2;
315 vst1q_lane_u16((void*) c0, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 0); c0 += 2;
316 vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 2);
317 }
318 if (nc & 1) {
319 vst1q_lane_s8(c1, vout0x01234567_1x01234567, 8);
320 vst1q_lane_s8(c0, vout0x01234567_1x01234567, 0);
321 }
322
323 nc = 0;
324 }
325 } while (nc != 0);
326 }
327