1 /*
2  * Copyright (c) 2019-2021 Arm Limited.
3  *
4  * SPDX-License-Identifier: MIT
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to
8  * deal in the Software without restriction, including without limitation the
9  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10  * sell copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22  * IN THE SOFTWARE.
23  */
24 
25 #ifdef __aarch64__
26 
27 template<>
interleave_block(int16_t * & out_ptr,const int16_t * const * in,size_t width,size_t height,size_t row_offset,bool first)28 void interleave_block<8, 1, VLType::None, true>(
29   int16_t * &out_ptr, const int16_t * const * in, size_t width, size_t height,
30   size_t row_offset, bool first
31 )
32 {
33   __asm__ __volatile__(
34       "movi v1.8h, #0x0\n"
35       "ldr x27, [%x[in], #0x0]\n"
36       "mov x19, #0x0\n"
37       "movi v0.4s, #0x0\n"
38       "ldr x26, [%x[in], #0x8]\n"
39       "cmp %x[height], #0x8\n"
40       "movi v31.4s, #0x0\n"
41       "ldr x25, [%x[in], #0x10]\n"
42       "add x27, x27, %x[row_offset], LSL #1\n"
43       "ldr x24, [%x[in], #0x18]\n"
44       "ldr x23, [%x[in], #0x20]\n"
45       "add x26, x26, %x[row_offset], LSL #1\n"
46       "ldr x22, [%x[in], #0x28]\n"
47       "add x25, x25, %x[row_offset], LSL #1\n"
48       "ldr x21, [%x[in], #0x30]\n"
49       "add x24, x24, %x[row_offset], LSL #1\n"
50       "ldr x20, [%x[in], #0x38]\n"
51       "add x23, x23, %x[row_offset], LSL #1\n"
52       "add x22, x22, %x[row_offset], LSL #1\n"
53       "add x21, x21, %x[row_offset], LSL #1\n"
54       "add x20, x20, %x[row_offset], LSL #1\n"
55       "beq 1f\n"
56       "mov x20, x27\n"
57       "cmp %x[height], #0x2\n"
58       "csel x26, x26, x27, GE\n"
59       "csel x25, x25, x27, GT\n"
60       "cmp %x[height], #0x4\n"
61       "csel x24, x24, x27, GE\n"
62       "csel x23, x23, x27, GT\n"
63       "cmp %x[height], #0x6\n"
64       "csel x22, x22, x27, GE\n"
65       "csel x21, x21, x27, GT\n"
66       "1:"  // no_pointer_adj
67       "prfm pldl1keep, [x27, #0x0]\n"
68       "prfm pldl1keep, [x26, #0x0]\n"
69       "prfm pldl1keep, [x25, #0x0]\n"
70       "prfm pldl1keep, [x24, #0x0]\n"
71       "prfm pldl1keep, [x23, #0x0]\n"
72       "prfm pldl1keep, [x22, #0x0]\n"
73       "prfm pldl1keep, [x21, #0x0]\n"
74       "prfm pldl1keep, [x20, #0x0]\n"
75       "prfm pldl1keep, [x27, #0x40]\n"
76       "prfm pldl1keep, [x26, #0x40]\n"
77       "prfm pldl1keep, [x25, #0x40]\n"
78       "prfm pldl1keep, [x24, #0x40]\n"
79       "prfm pldl1keep, [x23, #0x40]\n"
80       "prfm pldl1keep, [x22, #0x40]\n"
81       "prfm pldl1keep, [x21, #0x40]\n"
82       "prfm pldl1keep, [x20, #0x40]\n"
83       "cbnz %w[first], 2f\n"
84       "sub %x[out_ptr], %x[out_ptr], #0x20\n"
85       "ld1 { v0.4s }, [%x[out_ptr]]\n"
86       "ldr q31, [%x[out_ptr], #0x10]\n"
87       "2:"  // first_pass
88       "cmp %x[width], #0x8\n"
89       "blt 5f\n"
90       "3:"  // Main loop head
91       "cmp x19, #0xe\n"
92       "ble 4f\n"
93       "saddw v0.4s, v0.4s, v1.4h\n"
94       "saddw2 v31.4s, v31.4s, v1.8h\n"
95       "mov x19, #0x0\n"
96       "movi v1.8h, #0x0\n"
97       "4:"  // no_accumulate_16
98       "ldr q30, [x27], #0x10\n"
99       "add x19, x19, #0x1\n"
100       "ldr q29, [x26], #0x10\n"
101       "subs %x[width], %x[width], #0x8\n"
102       "ldr q28, [x25], #0x10\n"
103       "cmp %x[width], #0x8\n"
104       "ldr q27, [x24], #0x10\n"
105       "ldr q25, [x23], #0x10\n"
106       "zip1 v26.8h, v30.8h, v25.8h\n"
107       "ldr q21, [x22], #0x10\n"
108       "zip2 v25.8h, v30.8h, v25.8h\n"
109       "ldr q24, [x21], #0x10\n"
110       "ldr q23, [x20], #0x10\n"
111       "zip1 v22.8h, v29.8h, v21.8h\n"
112       "prfm pldl1keep, [x27, #0x70]\n"
113       "zip2 v21.8h, v29.8h, v21.8h\n"
114       "prfm pldl1keep, [x26, #0x70]\n"
115       "zip1 v20.8h, v28.8h, v24.8h\n"
116       "prfm pldl1keep, [x25, #0x70]\n"
117       "zip1 v18.8h, v26.8h, v20.8h\n"
118       "prfm pldl1keep, [x24, #0x70]\n"
119       "zip1 v19.8h, v27.8h, v23.8h\n"
120       "prfm pldl1keep, [x23, #0x70]\n"
121       "zip1 v16.8h, v22.8h, v19.8h\n"
122       "prfm pldl1keep, [x22, #0x70]\n"
123       "zip1 v17.8h, v18.8h, v16.8h\n"
124       "prfm pldl1keep, [x21, #0x70]\n"
125       "add v1.8h, v1.8h, v17.8h\n"
126       "prfm pldl1keep, [x20, #0x70]\n"
127       "zip2 v16.8h, v18.8h, v16.8h\n"
128       "str q17, [%x[out_ptr], #0x0]\n"
129       "zip2 v18.8h, v26.8h, v20.8h\n"
130       "str q16, [%x[out_ptr], #0x10]\n"
131       "add v1.8h, v1.8h, v16.8h\n"
132       "zip2 v17.8h, v22.8h, v19.8h\n"
133       "zip1 v16.8h, v18.8h, v17.8h\n"
134       "str q16, [%x[out_ptr], #0x20]\n"
135       "add v1.8h, v1.8h, v16.8h\n"
136       "zip2 v16.8h, v18.8h, v17.8h\n"
137       "str q16, [%x[out_ptr], #0x30]\n"
138       "zip2 v20.8h, v28.8h, v24.8h\n"
139       "add v1.8h, v1.8h, v16.8h\n"
140       "zip1 v18.8h, v25.8h, v20.8h\n"
141       "zip2 v19.8h, v27.8h, v23.8h\n"
142       "zip1 v17.8h, v21.8h, v19.8h\n"
143       "zip1 v16.8h, v18.8h, v17.8h\n"
144       "str q16, [%x[out_ptr], #0x40]\n"
145       "add v1.8h, v1.8h, v16.8h\n"
146       "zip2 v16.8h, v18.8h, v17.8h\n"
147       "str q16, [%x[out_ptr], #0x50]\n"
148       "zip2 v18.8h, v25.8h, v20.8h\n"
149       "add v1.8h, v1.8h, v16.8h\n"
150       "zip2 v17.8h, v21.8h, v19.8h\n"
151       "zip1 v16.8h, v18.8h, v17.8h\n"
152       "str q16, [%x[out_ptr], #0x60]\n"
153       "add v1.8h, v1.8h, v16.8h\n"
154       "zip2 v16.8h, v18.8h, v17.8h\n"
155       "str q16, [%x[out_ptr], #0x70]\n"
156       "add %x[out_ptr], %x[out_ptr], #0x80\n"
157       "add v1.8h, v1.8h, v16.8h\n"
158       "bge 3b\n"
159       "5:"  // Main loop skip
160       "cbz %x[width], 10f\n"
161       "tbz %x[width], #2, 7f\n"
162       "ldr d30, [x27], #0x8\n"
163       "ldr d29, [x26], #0x8\n"
164       "ldr d28, [x25], #0x8\n"
165       "ldr d27, [x24], #0x8\n"
166       "ldr d25, [x23], #0x8\n"
167       "ldr d21, [x22], #0x8\n"
168       "ldr d24, [x21], #0x8\n"
169       "ldr d23, [x20], #0x8\n"
170       "tbz %x[width], #1, 6f\n"
171       "ld1 { v30.s }[2], [x27], #0x4\n"
172       "mov x19, #0x6\n"
173       "ld1 { v29.s }[2], [x26], #0x4\n"
174       "ld1 { v28.s }[2], [x25], #0x4\n"
175       "ld1 { v27.s }[2], [x24], #0x4\n"
176       "ld1 { v25.s }[2], [x23], #0x4\n"
177       "ld1 { v21.s }[2], [x22], #0x4\n"
178       "ld1 { v24.s }[2], [x21], #0x4\n"
179       "ld1 { v23.s }[2], [x20], #0x4\n"
180       "tbz %x[width], #0, 9f\n"
181       "ld1 { v30.h }[6], [x27]\n"
182       "mov x19, #0x7\n"
183       "ld1 { v29.h }[6], [x26]\n"
184       "ld1 { v28.h }[6], [x25]\n"
185       "ld1 { v27.h }[6], [x24]\n"
186       "ld1 { v25.h }[6], [x23]\n"
187       "ld1 { v21.h }[6], [x22]\n"
188       "ld1 { v24.h }[6], [x21]\n"
189       "ld1 { v23.h }[6], [x20]\n"
190       "b 9f\n"
191       "6:"  // odd_loads_1_4
192       "mov x19, #0x4\n"
193       "tbz %x[width], #0, 9f\n"
194       "ld1 { v30.h }[4], [x27]\n"
195       "ld1 { v29.h }[4], [x26]\n"
196       "mov x19, #0x5\n"
197       "ld1 { v28.h }[4], [x25]\n"
198       "ld1 { v27.h }[4], [x24]\n"
199       "ld1 { v25.h }[4], [x23]\n"
200       "ld1 { v21.h }[4], [x22]\n"
201       "ld1 { v24.h }[4], [x21]\n"
202       "ld1 { v23.h }[4], [x20]\n"
203       "b 9f\n"
204       "7:"  // odd_loads_2_0
205       "tbz %x[width], #1, 8f\n"
206       "ldr s30, [x27], #0x4\n"
207       "ldr s29, [x26], #0x4\n"
208       "mov x19, #0x2\n"
209       "ldr s28, [x25], #0x4\n"
210       "ldr s27, [x24], #0x4\n"
211       "ldr s25, [x23], #0x4\n"
212       "ldr s21, [x22], #0x4\n"
213       "ldr s24, [x21], #0x4\n"
214       "ldr s23, [x20], #0x4\n"
215       "tbz %x[width], #0, 9f\n"
216       "ld1 { v30.h }[2], [x27]\n"
217       "mov x19, #0x3\n"
218       "ld1 { v29.h }[2], [x26]\n"
219       "ld1 { v28.h }[2], [x25]\n"
220       "ld1 { v27.h }[2], [x24]\n"
221       "ld1 { v25.h }[2], [x23]\n"
222       "ld1 { v21.h }[2], [x22]\n"
223       "ld1 { v24.h }[2], [x21]\n"
224       "ld1 { v23.h }[2], [x20]\n"
225       "b 9f\n"
226       "8:"  // odd_loads_1_0
227       "ldr h30, [x27, #0x0]\n"
228       "mov x19, #0x1\n"
229       "ldr h29, [x26, #0x0]\n"
230       "ldr h28, [x25, #0x0]\n"
231       "ldr h27, [x24, #0x0]\n"
232       "ldr h25, [x23, #0x0]\n"
233       "ldr h21, [x22, #0x0]\n"
234       "ldr h24, [x21, #0x0]\n"
235       "ldr h23, [x20, #0x0]\n"
236       "9:"  // Odd load end
237       "zip1 v26.8h, v30.8h, v25.8h\n"
238       "subs x19, x19, #0x1\n"
239       "zip1 v20.8h, v28.8h, v24.8h\n"
240       "zip1 v18.8h, v26.8h, v20.8h\n"
241       "zip1 v22.8h, v29.8h, v21.8h\n"
242       "zip1 v19.8h, v27.8h, v23.8h\n"
243       "zip1 v16.8h, v22.8h, v19.8h\n"
244       "zip1 v17.8h, v18.8h, v16.8h\n"
245       "str q17, [%x[out_ptr], #0x0]\n"
246       "add %x[out_ptr], %x[out_ptr], #0x10\n"
247       "add v1.8h, v1.8h, v17.8h\n"
248       "beq 10f\n"
249       "zip2 v16.8h, v18.8h, v16.8h\n"
250       "str q16, [%x[out_ptr], #0x0]\n"
251       "subs x19, x19, #0x1\n"
252       "add v1.8h, v1.8h, v16.8h\n"
253       "add %x[out_ptr], %x[out_ptr], #0x10\n"
254       "beq 10f\n"
255       "zip2 v18.8h, v26.8h, v20.8h\n"
256       "zip2 v17.8h, v22.8h, v19.8h\n"
257       "subs x19, x19, #0x1\n"
258       "zip1 v16.8h, v18.8h, v17.8h\n"
259       "str q16, [%x[out_ptr], #0x0]\n"
260       "add %x[out_ptr], %x[out_ptr], #0x10\n"
261       "add v1.8h, v1.8h, v16.8h\n"
262       "beq 10f\n"
263       "zip2 v16.8h, v18.8h, v17.8h\n"
264       "str q16, [%x[out_ptr], #0x0]\n"
265       "subs x19, x19, #0x1\n"
266       "add v1.8h, v1.8h, v16.8h\n"
267       "add %x[out_ptr], %x[out_ptr], #0x10\n"
268       "beq 10f\n"
269       "zip2 v25.8h, v30.8h, v25.8h\n"
270       "zip2 v20.8h, v28.8h, v24.8h\n"
271       "subs x19, x19, #0x1\n"
272       "zip1 v18.8h, v25.8h, v20.8h\n"
273       "zip2 v21.8h, v29.8h, v21.8h\n"
274       "zip2 v19.8h, v27.8h, v23.8h\n"
275       "zip1 v17.8h, v21.8h, v19.8h\n"
276       "zip1 v16.8h, v18.8h, v17.8h\n"
277       "str q16, [%x[out_ptr], #0x0]\n"
278       "add %x[out_ptr], %x[out_ptr], #0x10\n"
279       "add v1.8h, v1.8h, v16.8h\n"
280       "beq 10f\n"
281       "zip2 v16.8h, v18.8h, v17.8h\n"
282       "str q16, [%x[out_ptr], #0x0]\n"
283       "subs x19, x19, #0x1\n"
284       "add v1.8h, v1.8h, v16.8h\n"
285       "add %x[out_ptr], %x[out_ptr], #0x10\n"
286       "beq 10f\n"
287       "zip2 v18.8h, v25.8h, v20.8h\n"
288       "zip2 v17.8h, v21.8h, v19.8h\n"
289       "zip1 v16.8h, v18.8h, v17.8h\n"
290       "str q16, [%x[out_ptr], #0x0]\n"
291       "add %x[out_ptr], %x[out_ptr], #0x10\n"
292       "add v1.8h, v1.8h, v16.8h\n"
293       "10:"  // Odds skip
294       "saddw v0.4s, v0.4s, v1.4h\n"
295       "str q0, [%x[out_ptr], #0x0]\n"
296       "saddw2 v31.4s, v31.4s, v1.8h\n"
297       "str q31, [%x[out_ptr], #0x10]\n"
298       "add %x[out_ptr], %x[out_ptr], #0x20\n"
299       : [out_ptr] "+&r" (out_ptr), [width] "+&r" (width)
300       : [first] "r" (first), [height] "r" (height), [in] "r" (in), [row_offset] "r" (row_offset)
301       : "cc", "memory", "v0", "v1", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", "x19", "x20", "x21", "x22", "x23", "x24", "x25", "x26", "x27"
302     );
303 }
304 
305 
306 #endif // __aarch64__
307