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38388f7e RH |
1 | /* |
2 | * AArch64 SVE translation | |
3 | * | |
4 | * Copyright (c) 2018 Linaro, Ltd | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "qemu/osdep.h" | |
21 | #include "cpu.h" | |
22 | #include "exec/exec-all.h" | |
23 | #include "tcg-op.h" | |
24 | #include "tcg-op-gvec.h" | |
028e2a7b | 25 | #include "tcg-gvec-desc.h" |
38388f7e RH |
26 | #include "qemu/log.h" |
27 | #include "arm_ldst.h" | |
28 | #include "translate.h" | |
29 | #include "internals.h" | |
30 | #include "exec/helper-proto.h" | |
31 | #include "exec/helper-gen.h" | |
32 | #include "exec/log.h" | |
33 | #include "trace-tcg.h" | |
34 | #include "translate-a64.h" | |
35 | ||
757f9cff | 36 | |
9ee3a611 RH |
37 | typedef void GVecGen2sFn(unsigned, uint32_t, uint32_t, |
38 | TCGv_i64, uint32_t, uint32_t); | |
39 | ||
38cadeba RH |
40 | typedef void gen_helper_gvec_flags_3(TCGv_i32, TCGv_ptr, TCGv_ptr, |
41 | TCGv_ptr, TCGv_i32); | |
757f9cff RH |
42 | typedef void gen_helper_gvec_flags_4(TCGv_i32, TCGv_ptr, TCGv_ptr, |
43 | TCGv_ptr, TCGv_ptr, TCGv_i32); | |
44 | ||
c4e7c493 RH |
45 | typedef void gen_helper_gvec_mem(TCGv_env, TCGv_ptr, TCGv_i64, TCGv_i32); |
46 | ||
ccd841c3 RH |
47 | /* |
48 | * Helpers for extracting complex instruction fields. | |
49 | */ | |
50 | ||
51 | /* See e.g. ASR (immediate, predicated). | |
52 | * Returns -1 for unallocated encoding; diagnose later. | |
53 | */ | |
54 | static int tszimm_esz(int x) | |
55 | { | |
56 | x >>= 3; /* discard imm3 */ | |
57 | return 31 - clz32(x); | |
58 | } | |
59 | ||
60 | static int tszimm_shr(int x) | |
61 | { | |
62 | return (16 << tszimm_esz(x)) - x; | |
63 | } | |
64 | ||
65 | /* See e.g. LSL (immediate, predicated). */ | |
66 | static int tszimm_shl(int x) | |
67 | { | |
68 | return x - (8 << tszimm_esz(x)); | |
69 | } | |
70 | ||
24e82e68 RH |
71 | static inline int plus1(int x) |
72 | { | |
73 | return x + 1; | |
74 | } | |
75 | ||
f25a2361 RH |
76 | /* The SH bit is in bit 8. Extract the low 8 and shift. */ |
77 | static inline int expand_imm_sh8s(int x) | |
78 | { | |
79 | return (int8_t)x << (x & 0x100 ? 8 : 0); | |
80 | } | |
81 | ||
6e6a157d RH |
82 | static inline int expand_imm_sh8u(int x) |
83 | { | |
84 | return (uint8_t)x << (x & 0x100 ? 8 : 0); | |
85 | } | |
86 | ||
c4e7c493 RH |
87 | /* Convert a 2-bit memory size (msz) to a 4-bit data type (dtype) |
88 | * with unsigned data. C.f. SVE Memory Contiguous Load Group. | |
89 | */ | |
90 | static inline int msz_dtype(int msz) | |
91 | { | |
92 | static const uint8_t dtype[4] = { 0, 5, 10, 15 }; | |
93 | return dtype[msz]; | |
94 | } | |
95 | ||
38388f7e RH |
96 | /* |
97 | * Include the generated decoder. | |
98 | */ | |
99 | ||
100 | #include "decode-sve.inc.c" | |
101 | ||
102 | /* | |
103 | * Implement all of the translator functions referenced by the decoder. | |
104 | */ | |
105 | ||
d1822297 RH |
106 | /* Return the offset info CPUARMState of the predicate vector register Pn. |
107 | * Note for this purpose, FFR is P16. | |
108 | */ | |
109 | static inline int pred_full_reg_offset(DisasContext *s, int regno) | |
110 | { | |
111 | return offsetof(CPUARMState, vfp.pregs[regno]); | |
112 | } | |
113 | ||
114 | /* Return the byte size of the whole predicate register, VL / 64. */ | |
115 | static inline int pred_full_reg_size(DisasContext *s) | |
116 | { | |
117 | return s->sve_len >> 3; | |
118 | } | |
119 | ||
516e246a RH |
120 | /* Round up the size of a register to a size allowed by |
121 | * the tcg vector infrastructure. Any operation which uses this | |
122 | * size may assume that the bits above pred_full_reg_size are zero, | |
123 | * and must leave them the same way. | |
124 | * | |
125 | * Note that this is not needed for the vector registers as they | |
126 | * are always properly sized for tcg vectors. | |
127 | */ | |
128 | static int size_for_gvec(int size) | |
129 | { | |
130 | if (size <= 8) { | |
131 | return 8; | |
132 | } else { | |
133 | return QEMU_ALIGN_UP(size, 16); | |
134 | } | |
135 | } | |
136 | ||
137 | static int pred_gvec_reg_size(DisasContext *s) | |
138 | { | |
139 | return size_for_gvec(pred_full_reg_size(s)); | |
140 | } | |
141 | ||
39eea561 RH |
142 | /* Invoke a vector expander on two Zregs. */ |
143 | static bool do_vector2_z(DisasContext *s, GVecGen2Fn *gvec_fn, | |
144 | int esz, int rd, int rn) | |
38388f7e | 145 | { |
39eea561 RH |
146 | if (sve_access_check(s)) { |
147 | unsigned vsz = vec_full_reg_size(s); | |
148 | gvec_fn(esz, vec_full_reg_offset(s, rd), | |
149 | vec_full_reg_offset(s, rn), vsz, vsz); | |
150 | } | |
151 | return true; | |
38388f7e RH |
152 | } |
153 | ||
39eea561 RH |
154 | /* Invoke a vector expander on three Zregs. */ |
155 | static bool do_vector3_z(DisasContext *s, GVecGen3Fn *gvec_fn, | |
156 | int esz, int rd, int rn, int rm) | |
38388f7e | 157 | { |
39eea561 RH |
158 | if (sve_access_check(s)) { |
159 | unsigned vsz = vec_full_reg_size(s); | |
160 | gvec_fn(esz, vec_full_reg_offset(s, rd), | |
161 | vec_full_reg_offset(s, rn), | |
162 | vec_full_reg_offset(s, rm), vsz, vsz); | |
163 | } | |
164 | return true; | |
38388f7e RH |
165 | } |
166 | ||
39eea561 RH |
167 | /* Invoke a vector move on two Zregs. */ |
168 | static bool do_mov_z(DisasContext *s, int rd, int rn) | |
38388f7e | 169 | { |
39eea561 | 170 | return do_vector2_z(s, tcg_gen_gvec_mov, 0, rd, rn); |
38388f7e RH |
171 | } |
172 | ||
d9d78dcc RH |
173 | /* Initialize a Zreg with replications of a 64-bit immediate. */ |
174 | static void do_dupi_z(DisasContext *s, int rd, uint64_t word) | |
175 | { | |
176 | unsigned vsz = vec_full_reg_size(s); | |
177 | tcg_gen_gvec_dup64i(vec_full_reg_offset(s, rd), vsz, vsz, word); | |
178 | } | |
179 | ||
516e246a RH |
180 | /* Invoke a vector expander on two Pregs. */ |
181 | static bool do_vector2_p(DisasContext *s, GVecGen2Fn *gvec_fn, | |
182 | int esz, int rd, int rn) | |
183 | { | |
184 | if (sve_access_check(s)) { | |
185 | unsigned psz = pred_gvec_reg_size(s); | |
186 | gvec_fn(esz, pred_full_reg_offset(s, rd), | |
187 | pred_full_reg_offset(s, rn), psz, psz); | |
188 | } | |
189 | return true; | |
190 | } | |
191 | ||
192 | /* Invoke a vector expander on three Pregs. */ | |
193 | static bool do_vector3_p(DisasContext *s, GVecGen3Fn *gvec_fn, | |
194 | int esz, int rd, int rn, int rm) | |
195 | { | |
196 | if (sve_access_check(s)) { | |
197 | unsigned psz = pred_gvec_reg_size(s); | |
198 | gvec_fn(esz, pred_full_reg_offset(s, rd), | |
199 | pred_full_reg_offset(s, rn), | |
200 | pred_full_reg_offset(s, rm), psz, psz); | |
201 | } | |
202 | return true; | |
203 | } | |
204 | ||
205 | /* Invoke a vector operation on four Pregs. */ | |
206 | static bool do_vecop4_p(DisasContext *s, const GVecGen4 *gvec_op, | |
207 | int rd, int rn, int rm, int rg) | |
208 | { | |
209 | if (sve_access_check(s)) { | |
210 | unsigned psz = pred_gvec_reg_size(s); | |
211 | tcg_gen_gvec_4(pred_full_reg_offset(s, rd), | |
212 | pred_full_reg_offset(s, rn), | |
213 | pred_full_reg_offset(s, rm), | |
214 | pred_full_reg_offset(s, rg), | |
215 | psz, psz, gvec_op); | |
216 | } | |
217 | return true; | |
218 | } | |
219 | ||
220 | /* Invoke a vector move on two Pregs. */ | |
221 | static bool do_mov_p(DisasContext *s, int rd, int rn) | |
222 | { | |
223 | return do_vector2_p(s, tcg_gen_gvec_mov, 0, rd, rn); | |
224 | } | |
225 | ||
9e18d7a6 RH |
226 | /* Set the cpu flags as per a return from an SVE helper. */ |
227 | static void do_pred_flags(TCGv_i32 t) | |
228 | { | |
229 | tcg_gen_mov_i32(cpu_NF, t); | |
230 | tcg_gen_andi_i32(cpu_ZF, t, 2); | |
231 | tcg_gen_andi_i32(cpu_CF, t, 1); | |
232 | tcg_gen_movi_i32(cpu_VF, 0); | |
233 | } | |
234 | ||
235 | /* Subroutines computing the ARM PredTest psuedofunction. */ | |
236 | static void do_predtest1(TCGv_i64 d, TCGv_i64 g) | |
237 | { | |
238 | TCGv_i32 t = tcg_temp_new_i32(); | |
239 | ||
240 | gen_helper_sve_predtest1(t, d, g); | |
241 | do_pred_flags(t); | |
242 | tcg_temp_free_i32(t); | |
243 | } | |
244 | ||
245 | static void do_predtest(DisasContext *s, int dofs, int gofs, int words) | |
246 | { | |
247 | TCGv_ptr dptr = tcg_temp_new_ptr(); | |
248 | TCGv_ptr gptr = tcg_temp_new_ptr(); | |
249 | TCGv_i32 t; | |
250 | ||
251 | tcg_gen_addi_ptr(dptr, cpu_env, dofs); | |
252 | tcg_gen_addi_ptr(gptr, cpu_env, gofs); | |
253 | t = tcg_const_i32(words); | |
254 | ||
255 | gen_helper_sve_predtest(t, dptr, gptr, t); | |
256 | tcg_temp_free_ptr(dptr); | |
257 | tcg_temp_free_ptr(gptr); | |
258 | ||
259 | do_pred_flags(t); | |
260 | tcg_temp_free_i32(t); | |
261 | } | |
262 | ||
028e2a7b RH |
263 | /* For each element size, the bits within a predicate word that are active. */ |
264 | const uint64_t pred_esz_masks[4] = { | |
265 | 0xffffffffffffffffull, 0x5555555555555555ull, | |
266 | 0x1111111111111111ull, 0x0101010101010101ull | |
267 | }; | |
268 | ||
39eea561 RH |
269 | /* |
270 | *** SVE Logical - Unpredicated Group | |
271 | */ | |
272 | ||
273 | static bool trans_AND_zzz(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
274 | { | |
275 | return do_vector3_z(s, tcg_gen_gvec_and, 0, a->rd, a->rn, a->rm); | |
276 | } | |
277 | ||
278 | static bool trans_ORR_zzz(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
279 | { | |
280 | if (a->rn == a->rm) { /* MOV */ | |
281 | return do_mov_z(s, a->rd, a->rn); | |
282 | } else { | |
283 | return do_vector3_z(s, tcg_gen_gvec_or, 0, a->rd, a->rn, a->rm); | |
284 | } | |
285 | } | |
286 | ||
287 | static bool trans_EOR_zzz(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
288 | { | |
289 | return do_vector3_z(s, tcg_gen_gvec_xor, 0, a->rd, a->rn, a->rm); | |
290 | } | |
291 | ||
292 | static bool trans_BIC_zzz(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
38388f7e | 293 | { |
39eea561 | 294 | return do_vector3_z(s, tcg_gen_gvec_andc, 0, a->rd, a->rn, a->rm); |
38388f7e | 295 | } |
d1822297 | 296 | |
fea98f9c RH |
297 | /* |
298 | *** SVE Integer Arithmetic - Unpredicated Group | |
299 | */ | |
300 | ||
301 | static bool trans_ADD_zzz(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
302 | { | |
303 | return do_vector3_z(s, tcg_gen_gvec_add, a->esz, a->rd, a->rn, a->rm); | |
304 | } | |
305 | ||
306 | static bool trans_SUB_zzz(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
307 | { | |
308 | return do_vector3_z(s, tcg_gen_gvec_sub, a->esz, a->rd, a->rn, a->rm); | |
309 | } | |
310 | ||
311 | static bool trans_SQADD_zzz(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
312 | { | |
313 | return do_vector3_z(s, tcg_gen_gvec_ssadd, a->esz, a->rd, a->rn, a->rm); | |
314 | } | |
315 | ||
316 | static bool trans_SQSUB_zzz(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
317 | { | |
318 | return do_vector3_z(s, tcg_gen_gvec_sssub, a->esz, a->rd, a->rn, a->rm); | |
319 | } | |
320 | ||
321 | static bool trans_UQADD_zzz(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
322 | { | |
323 | return do_vector3_z(s, tcg_gen_gvec_usadd, a->esz, a->rd, a->rn, a->rm); | |
324 | } | |
325 | ||
326 | static bool trans_UQSUB_zzz(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
327 | { | |
328 | return do_vector3_z(s, tcg_gen_gvec_ussub, a->esz, a->rd, a->rn, a->rm); | |
329 | } | |
330 | ||
f97cfd59 RH |
331 | /* |
332 | *** SVE Integer Arithmetic - Binary Predicated Group | |
333 | */ | |
334 | ||
335 | static bool do_zpzz_ool(DisasContext *s, arg_rprr_esz *a, gen_helper_gvec_4 *fn) | |
336 | { | |
337 | unsigned vsz = vec_full_reg_size(s); | |
338 | if (fn == NULL) { | |
339 | return false; | |
340 | } | |
341 | if (sve_access_check(s)) { | |
342 | tcg_gen_gvec_4_ool(vec_full_reg_offset(s, a->rd), | |
343 | vec_full_reg_offset(s, a->rn), | |
344 | vec_full_reg_offset(s, a->rm), | |
345 | pred_full_reg_offset(s, a->pg), | |
346 | vsz, vsz, 0, fn); | |
347 | } | |
348 | return true; | |
349 | } | |
350 | ||
351 | #define DO_ZPZZ(NAME, name) \ | |
352 | static bool trans_##NAME##_zpzz(DisasContext *s, arg_rprr_esz *a, \ | |
353 | uint32_t insn) \ | |
354 | { \ | |
355 | static gen_helper_gvec_4 * const fns[4] = { \ | |
356 | gen_helper_sve_##name##_zpzz_b, gen_helper_sve_##name##_zpzz_h, \ | |
357 | gen_helper_sve_##name##_zpzz_s, gen_helper_sve_##name##_zpzz_d, \ | |
358 | }; \ | |
359 | return do_zpzz_ool(s, a, fns[a->esz]); \ | |
360 | } | |
361 | ||
362 | DO_ZPZZ(AND, and) | |
363 | DO_ZPZZ(EOR, eor) | |
364 | DO_ZPZZ(ORR, orr) | |
365 | DO_ZPZZ(BIC, bic) | |
366 | ||
367 | DO_ZPZZ(ADD, add) | |
368 | DO_ZPZZ(SUB, sub) | |
369 | ||
370 | DO_ZPZZ(SMAX, smax) | |
371 | DO_ZPZZ(UMAX, umax) | |
372 | DO_ZPZZ(SMIN, smin) | |
373 | DO_ZPZZ(UMIN, umin) | |
374 | DO_ZPZZ(SABD, sabd) | |
375 | DO_ZPZZ(UABD, uabd) | |
376 | ||
377 | DO_ZPZZ(MUL, mul) | |
378 | DO_ZPZZ(SMULH, smulh) | |
379 | DO_ZPZZ(UMULH, umulh) | |
380 | ||
27721dbb RH |
381 | DO_ZPZZ(ASR, asr) |
382 | DO_ZPZZ(LSR, lsr) | |
383 | DO_ZPZZ(LSL, lsl) | |
384 | ||
f97cfd59 RH |
385 | static bool trans_SDIV_zpzz(DisasContext *s, arg_rprr_esz *a, uint32_t insn) |
386 | { | |
387 | static gen_helper_gvec_4 * const fns[4] = { | |
388 | NULL, NULL, gen_helper_sve_sdiv_zpzz_s, gen_helper_sve_sdiv_zpzz_d | |
389 | }; | |
390 | return do_zpzz_ool(s, a, fns[a->esz]); | |
391 | } | |
392 | ||
393 | static bool trans_UDIV_zpzz(DisasContext *s, arg_rprr_esz *a, uint32_t insn) | |
394 | { | |
395 | static gen_helper_gvec_4 * const fns[4] = { | |
396 | NULL, NULL, gen_helper_sve_udiv_zpzz_s, gen_helper_sve_udiv_zpzz_d | |
397 | }; | |
398 | return do_zpzz_ool(s, a, fns[a->esz]); | |
399 | } | |
400 | ||
d3fe4a29 RH |
401 | DO_ZPZZ(SEL, sel) |
402 | ||
f97cfd59 RH |
403 | #undef DO_ZPZZ |
404 | ||
afac6d04 RH |
405 | /* |
406 | *** SVE Integer Arithmetic - Unary Predicated Group | |
407 | */ | |
408 | ||
409 | static bool do_zpz_ool(DisasContext *s, arg_rpr_esz *a, gen_helper_gvec_3 *fn) | |
410 | { | |
411 | if (fn == NULL) { | |
412 | return false; | |
413 | } | |
414 | if (sve_access_check(s)) { | |
415 | unsigned vsz = vec_full_reg_size(s); | |
416 | tcg_gen_gvec_3_ool(vec_full_reg_offset(s, a->rd), | |
417 | vec_full_reg_offset(s, a->rn), | |
418 | pred_full_reg_offset(s, a->pg), | |
419 | vsz, vsz, 0, fn); | |
420 | } | |
421 | return true; | |
422 | } | |
423 | ||
424 | #define DO_ZPZ(NAME, name) \ | |
425 | static bool trans_##NAME(DisasContext *s, arg_rpr_esz *a, uint32_t insn) \ | |
426 | { \ | |
427 | static gen_helper_gvec_3 * const fns[4] = { \ | |
428 | gen_helper_sve_##name##_b, gen_helper_sve_##name##_h, \ | |
429 | gen_helper_sve_##name##_s, gen_helper_sve_##name##_d, \ | |
430 | }; \ | |
431 | return do_zpz_ool(s, a, fns[a->esz]); \ | |
432 | } | |
433 | ||
434 | DO_ZPZ(CLS, cls) | |
435 | DO_ZPZ(CLZ, clz) | |
436 | DO_ZPZ(CNT_zpz, cnt_zpz) | |
437 | DO_ZPZ(CNOT, cnot) | |
438 | DO_ZPZ(NOT_zpz, not_zpz) | |
439 | DO_ZPZ(ABS, abs) | |
440 | DO_ZPZ(NEG, neg) | |
441 | ||
442 | static bool trans_FABS(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
443 | { | |
444 | static gen_helper_gvec_3 * const fns[4] = { | |
445 | NULL, | |
446 | gen_helper_sve_fabs_h, | |
447 | gen_helper_sve_fabs_s, | |
448 | gen_helper_sve_fabs_d | |
449 | }; | |
450 | return do_zpz_ool(s, a, fns[a->esz]); | |
451 | } | |
452 | ||
453 | static bool trans_FNEG(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
454 | { | |
455 | static gen_helper_gvec_3 * const fns[4] = { | |
456 | NULL, | |
457 | gen_helper_sve_fneg_h, | |
458 | gen_helper_sve_fneg_s, | |
459 | gen_helper_sve_fneg_d | |
460 | }; | |
461 | return do_zpz_ool(s, a, fns[a->esz]); | |
462 | } | |
463 | ||
464 | static bool trans_SXTB(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
465 | { | |
466 | static gen_helper_gvec_3 * const fns[4] = { | |
467 | NULL, | |
468 | gen_helper_sve_sxtb_h, | |
469 | gen_helper_sve_sxtb_s, | |
470 | gen_helper_sve_sxtb_d | |
471 | }; | |
472 | return do_zpz_ool(s, a, fns[a->esz]); | |
473 | } | |
474 | ||
475 | static bool trans_UXTB(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
476 | { | |
477 | static gen_helper_gvec_3 * const fns[4] = { | |
478 | NULL, | |
479 | gen_helper_sve_uxtb_h, | |
480 | gen_helper_sve_uxtb_s, | |
481 | gen_helper_sve_uxtb_d | |
482 | }; | |
483 | return do_zpz_ool(s, a, fns[a->esz]); | |
484 | } | |
485 | ||
486 | static bool trans_SXTH(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
487 | { | |
488 | static gen_helper_gvec_3 * const fns[4] = { | |
489 | NULL, NULL, | |
490 | gen_helper_sve_sxth_s, | |
491 | gen_helper_sve_sxth_d | |
492 | }; | |
493 | return do_zpz_ool(s, a, fns[a->esz]); | |
494 | } | |
495 | ||
496 | static bool trans_UXTH(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
497 | { | |
498 | static gen_helper_gvec_3 * const fns[4] = { | |
499 | NULL, NULL, | |
500 | gen_helper_sve_uxth_s, | |
501 | gen_helper_sve_uxth_d | |
502 | }; | |
503 | return do_zpz_ool(s, a, fns[a->esz]); | |
504 | } | |
505 | ||
506 | static bool trans_SXTW(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
507 | { | |
508 | return do_zpz_ool(s, a, a->esz == 3 ? gen_helper_sve_sxtw_d : NULL); | |
509 | } | |
510 | ||
511 | static bool trans_UXTW(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
512 | { | |
513 | return do_zpz_ool(s, a, a->esz == 3 ? gen_helper_sve_uxtw_d : NULL); | |
514 | } | |
515 | ||
516 | #undef DO_ZPZ | |
517 | ||
047cec97 RH |
518 | /* |
519 | *** SVE Integer Reduction Group | |
520 | */ | |
521 | ||
522 | typedef void gen_helper_gvec_reduc(TCGv_i64, TCGv_ptr, TCGv_ptr, TCGv_i32); | |
523 | static bool do_vpz_ool(DisasContext *s, arg_rpr_esz *a, | |
524 | gen_helper_gvec_reduc *fn) | |
525 | { | |
526 | unsigned vsz = vec_full_reg_size(s); | |
527 | TCGv_ptr t_zn, t_pg; | |
528 | TCGv_i32 desc; | |
529 | TCGv_i64 temp; | |
530 | ||
531 | if (fn == NULL) { | |
532 | return false; | |
533 | } | |
534 | if (!sve_access_check(s)) { | |
535 | return true; | |
536 | } | |
537 | ||
538 | desc = tcg_const_i32(simd_desc(vsz, vsz, 0)); | |
539 | temp = tcg_temp_new_i64(); | |
540 | t_zn = tcg_temp_new_ptr(); | |
541 | t_pg = tcg_temp_new_ptr(); | |
542 | ||
543 | tcg_gen_addi_ptr(t_zn, cpu_env, vec_full_reg_offset(s, a->rn)); | |
544 | tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, a->pg)); | |
545 | fn(temp, t_zn, t_pg, desc); | |
546 | tcg_temp_free_ptr(t_zn); | |
547 | tcg_temp_free_ptr(t_pg); | |
548 | tcg_temp_free_i32(desc); | |
549 | ||
550 | write_fp_dreg(s, a->rd, temp); | |
551 | tcg_temp_free_i64(temp); | |
552 | return true; | |
553 | } | |
554 | ||
555 | #define DO_VPZ(NAME, name) \ | |
556 | static bool trans_##NAME(DisasContext *s, arg_rpr_esz *a, uint32_t insn) \ | |
557 | { \ | |
558 | static gen_helper_gvec_reduc * const fns[4] = { \ | |
559 | gen_helper_sve_##name##_b, gen_helper_sve_##name##_h, \ | |
560 | gen_helper_sve_##name##_s, gen_helper_sve_##name##_d, \ | |
561 | }; \ | |
562 | return do_vpz_ool(s, a, fns[a->esz]); \ | |
563 | } | |
564 | ||
565 | DO_VPZ(ORV, orv) | |
566 | DO_VPZ(ANDV, andv) | |
567 | DO_VPZ(EORV, eorv) | |
568 | ||
569 | DO_VPZ(UADDV, uaddv) | |
570 | DO_VPZ(SMAXV, smaxv) | |
571 | DO_VPZ(UMAXV, umaxv) | |
572 | DO_VPZ(SMINV, sminv) | |
573 | DO_VPZ(UMINV, uminv) | |
574 | ||
575 | static bool trans_SADDV(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
576 | { | |
577 | static gen_helper_gvec_reduc * const fns[4] = { | |
578 | gen_helper_sve_saddv_b, gen_helper_sve_saddv_h, | |
579 | gen_helper_sve_saddv_s, NULL | |
580 | }; | |
581 | return do_vpz_ool(s, a, fns[a->esz]); | |
582 | } | |
583 | ||
584 | #undef DO_VPZ | |
585 | ||
ccd841c3 RH |
586 | /* |
587 | *** SVE Shift by Immediate - Predicated Group | |
588 | */ | |
589 | ||
590 | /* Store zero into every active element of Zd. We will use this for two | |
591 | * and three-operand predicated instructions for which logic dictates a | |
592 | * zero result. | |
593 | */ | |
594 | static bool do_clr_zp(DisasContext *s, int rd, int pg, int esz) | |
595 | { | |
596 | static gen_helper_gvec_2 * const fns[4] = { | |
597 | gen_helper_sve_clr_b, gen_helper_sve_clr_h, | |
598 | gen_helper_sve_clr_s, gen_helper_sve_clr_d, | |
599 | }; | |
600 | if (sve_access_check(s)) { | |
601 | unsigned vsz = vec_full_reg_size(s); | |
602 | tcg_gen_gvec_2_ool(vec_full_reg_offset(s, rd), | |
603 | pred_full_reg_offset(s, pg), | |
604 | vsz, vsz, 0, fns[esz]); | |
605 | } | |
606 | return true; | |
607 | } | |
608 | ||
68459864 RH |
609 | /* Copy Zn into Zd, storing zeros into inactive elements. */ |
610 | static void do_movz_zpz(DisasContext *s, int rd, int rn, int pg, int esz) | |
611 | { | |
612 | static gen_helper_gvec_3 * const fns[4] = { | |
613 | gen_helper_sve_movz_b, gen_helper_sve_movz_h, | |
614 | gen_helper_sve_movz_s, gen_helper_sve_movz_d, | |
615 | }; | |
616 | unsigned vsz = vec_full_reg_size(s); | |
617 | tcg_gen_gvec_3_ool(vec_full_reg_offset(s, rd), | |
618 | vec_full_reg_offset(s, rn), | |
619 | pred_full_reg_offset(s, pg), | |
620 | vsz, vsz, 0, fns[esz]); | |
621 | } | |
622 | ||
ccd841c3 RH |
623 | static bool do_zpzi_ool(DisasContext *s, arg_rpri_esz *a, |
624 | gen_helper_gvec_3 *fn) | |
625 | { | |
626 | if (sve_access_check(s)) { | |
627 | unsigned vsz = vec_full_reg_size(s); | |
628 | tcg_gen_gvec_3_ool(vec_full_reg_offset(s, a->rd), | |
629 | vec_full_reg_offset(s, a->rn), | |
630 | pred_full_reg_offset(s, a->pg), | |
631 | vsz, vsz, a->imm, fn); | |
632 | } | |
633 | return true; | |
634 | } | |
635 | ||
636 | static bool trans_ASR_zpzi(DisasContext *s, arg_rpri_esz *a, uint32_t insn) | |
637 | { | |
638 | static gen_helper_gvec_3 * const fns[4] = { | |
639 | gen_helper_sve_asr_zpzi_b, gen_helper_sve_asr_zpzi_h, | |
640 | gen_helper_sve_asr_zpzi_s, gen_helper_sve_asr_zpzi_d, | |
641 | }; | |
642 | if (a->esz < 0) { | |
643 | /* Invalid tsz encoding -- see tszimm_esz. */ | |
644 | return false; | |
645 | } | |
646 | /* Shift by element size is architecturally valid. For | |
647 | arithmetic right-shift, it's the same as by one less. */ | |
648 | a->imm = MIN(a->imm, (8 << a->esz) - 1); | |
649 | return do_zpzi_ool(s, a, fns[a->esz]); | |
650 | } | |
651 | ||
652 | static bool trans_LSR_zpzi(DisasContext *s, arg_rpri_esz *a, uint32_t insn) | |
653 | { | |
654 | static gen_helper_gvec_3 * const fns[4] = { | |
655 | gen_helper_sve_lsr_zpzi_b, gen_helper_sve_lsr_zpzi_h, | |
656 | gen_helper_sve_lsr_zpzi_s, gen_helper_sve_lsr_zpzi_d, | |
657 | }; | |
658 | if (a->esz < 0) { | |
659 | return false; | |
660 | } | |
661 | /* Shift by element size is architecturally valid. | |
662 | For logical shifts, it is a zeroing operation. */ | |
663 | if (a->imm >= (8 << a->esz)) { | |
664 | return do_clr_zp(s, a->rd, a->pg, a->esz); | |
665 | } else { | |
666 | return do_zpzi_ool(s, a, fns[a->esz]); | |
667 | } | |
668 | } | |
669 | ||
670 | static bool trans_LSL_zpzi(DisasContext *s, arg_rpri_esz *a, uint32_t insn) | |
671 | { | |
672 | static gen_helper_gvec_3 * const fns[4] = { | |
673 | gen_helper_sve_lsl_zpzi_b, gen_helper_sve_lsl_zpzi_h, | |
674 | gen_helper_sve_lsl_zpzi_s, gen_helper_sve_lsl_zpzi_d, | |
675 | }; | |
676 | if (a->esz < 0) { | |
677 | return false; | |
678 | } | |
679 | /* Shift by element size is architecturally valid. | |
680 | For logical shifts, it is a zeroing operation. */ | |
681 | if (a->imm >= (8 << a->esz)) { | |
682 | return do_clr_zp(s, a->rd, a->pg, a->esz); | |
683 | } else { | |
684 | return do_zpzi_ool(s, a, fns[a->esz]); | |
685 | } | |
686 | } | |
687 | ||
688 | static bool trans_ASRD(DisasContext *s, arg_rpri_esz *a, uint32_t insn) | |
689 | { | |
690 | static gen_helper_gvec_3 * const fns[4] = { | |
691 | gen_helper_sve_asrd_b, gen_helper_sve_asrd_h, | |
692 | gen_helper_sve_asrd_s, gen_helper_sve_asrd_d, | |
693 | }; | |
694 | if (a->esz < 0) { | |
695 | return false; | |
696 | } | |
697 | /* Shift by element size is architecturally valid. For arithmetic | |
698 | right shift for division, it is a zeroing operation. */ | |
699 | if (a->imm >= (8 << a->esz)) { | |
700 | return do_clr_zp(s, a->rd, a->pg, a->esz); | |
701 | } else { | |
702 | return do_zpzi_ool(s, a, fns[a->esz]); | |
703 | } | |
704 | } | |
705 | ||
fe7f8dfb RH |
706 | /* |
707 | *** SVE Bitwise Shift - Predicated Group | |
708 | */ | |
709 | ||
710 | #define DO_ZPZW(NAME, name) \ | |
711 | static bool trans_##NAME##_zpzw(DisasContext *s, arg_rprr_esz *a, \ | |
712 | uint32_t insn) \ | |
713 | { \ | |
714 | static gen_helper_gvec_4 * const fns[3] = { \ | |
715 | gen_helper_sve_##name##_zpzw_b, gen_helper_sve_##name##_zpzw_h, \ | |
716 | gen_helper_sve_##name##_zpzw_s, \ | |
717 | }; \ | |
718 | if (a->esz < 0 || a->esz >= 3) { \ | |
719 | return false; \ | |
720 | } \ | |
721 | return do_zpzz_ool(s, a, fns[a->esz]); \ | |
722 | } | |
723 | ||
724 | DO_ZPZW(ASR, asr) | |
725 | DO_ZPZW(LSR, lsr) | |
726 | DO_ZPZW(LSL, lsl) | |
727 | ||
728 | #undef DO_ZPZW | |
729 | ||
d9d78dcc RH |
730 | /* |
731 | *** SVE Bitwise Shift - Unpredicated Group | |
732 | */ | |
733 | ||
734 | static bool do_shift_imm(DisasContext *s, arg_rri_esz *a, bool asr, | |
735 | void (*gvec_fn)(unsigned, uint32_t, uint32_t, | |
736 | int64_t, uint32_t, uint32_t)) | |
737 | { | |
738 | if (a->esz < 0) { | |
739 | /* Invalid tsz encoding -- see tszimm_esz. */ | |
740 | return false; | |
741 | } | |
742 | if (sve_access_check(s)) { | |
743 | unsigned vsz = vec_full_reg_size(s); | |
744 | /* Shift by element size is architecturally valid. For | |
745 | arithmetic right-shift, it's the same as by one less. | |
746 | Otherwise it is a zeroing operation. */ | |
747 | if (a->imm >= 8 << a->esz) { | |
748 | if (asr) { | |
749 | a->imm = (8 << a->esz) - 1; | |
750 | } else { | |
751 | do_dupi_z(s, a->rd, 0); | |
752 | return true; | |
753 | } | |
754 | } | |
755 | gvec_fn(a->esz, vec_full_reg_offset(s, a->rd), | |
756 | vec_full_reg_offset(s, a->rn), a->imm, vsz, vsz); | |
757 | } | |
758 | return true; | |
759 | } | |
760 | ||
761 | static bool trans_ASR_zzi(DisasContext *s, arg_rri_esz *a, uint32_t insn) | |
762 | { | |
763 | return do_shift_imm(s, a, true, tcg_gen_gvec_sari); | |
764 | } | |
765 | ||
766 | static bool trans_LSR_zzi(DisasContext *s, arg_rri_esz *a, uint32_t insn) | |
767 | { | |
768 | return do_shift_imm(s, a, false, tcg_gen_gvec_shri); | |
769 | } | |
770 | ||
771 | static bool trans_LSL_zzi(DisasContext *s, arg_rri_esz *a, uint32_t insn) | |
772 | { | |
773 | return do_shift_imm(s, a, false, tcg_gen_gvec_shli); | |
774 | } | |
775 | ||
776 | static bool do_zzw_ool(DisasContext *s, arg_rrr_esz *a, gen_helper_gvec_3 *fn) | |
777 | { | |
778 | if (fn == NULL) { | |
779 | return false; | |
780 | } | |
781 | if (sve_access_check(s)) { | |
782 | unsigned vsz = vec_full_reg_size(s); | |
783 | tcg_gen_gvec_3_ool(vec_full_reg_offset(s, a->rd), | |
784 | vec_full_reg_offset(s, a->rn), | |
785 | vec_full_reg_offset(s, a->rm), | |
786 | vsz, vsz, 0, fn); | |
787 | } | |
788 | return true; | |
789 | } | |
790 | ||
791 | #define DO_ZZW(NAME, name) \ | |
792 | static bool trans_##NAME##_zzw(DisasContext *s, arg_rrr_esz *a, \ | |
793 | uint32_t insn) \ | |
794 | { \ | |
795 | static gen_helper_gvec_3 * const fns[4] = { \ | |
796 | gen_helper_sve_##name##_zzw_b, gen_helper_sve_##name##_zzw_h, \ | |
797 | gen_helper_sve_##name##_zzw_s, NULL \ | |
798 | }; \ | |
799 | return do_zzw_ool(s, a, fns[a->esz]); \ | |
800 | } | |
801 | ||
802 | DO_ZZW(ASR, asr) | |
803 | DO_ZZW(LSR, lsr) | |
804 | DO_ZZW(LSL, lsl) | |
805 | ||
806 | #undef DO_ZZW | |
807 | ||
96a36e4a RH |
808 | /* |
809 | *** SVE Integer Multiply-Add Group | |
810 | */ | |
811 | ||
812 | static bool do_zpzzz_ool(DisasContext *s, arg_rprrr_esz *a, | |
813 | gen_helper_gvec_5 *fn) | |
814 | { | |
815 | if (sve_access_check(s)) { | |
816 | unsigned vsz = vec_full_reg_size(s); | |
817 | tcg_gen_gvec_5_ool(vec_full_reg_offset(s, a->rd), | |
818 | vec_full_reg_offset(s, a->ra), | |
819 | vec_full_reg_offset(s, a->rn), | |
820 | vec_full_reg_offset(s, a->rm), | |
821 | pred_full_reg_offset(s, a->pg), | |
822 | vsz, vsz, 0, fn); | |
823 | } | |
824 | return true; | |
825 | } | |
826 | ||
827 | #define DO_ZPZZZ(NAME, name) \ | |
828 | static bool trans_##NAME(DisasContext *s, arg_rprrr_esz *a, uint32_t insn) \ | |
829 | { \ | |
830 | static gen_helper_gvec_5 * const fns[4] = { \ | |
831 | gen_helper_sve_##name##_b, gen_helper_sve_##name##_h, \ | |
832 | gen_helper_sve_##name##_s, gen_helper_sve_##name##_d, \ | |
833 | }; \ | |
834 | return do_zpzzz_ool(s, a, fns[a->esz]); \ | |
835 | } | |
836 | ||
837 | DO_ZPZZZ(MLA, mla) | |
838 | DO_ZPZZZ(MLS, mls) | |
839 | ||
840 | #undef DO_ZPZZZ | |
841 | ||
9a56c9c3 RH |
842 | /* |
843 | *** SVE Index Generation Group | |
844 | */ | |
845 | ||
846 | static void do_index(DisasContext *s, int esz, int rd, | |
847 | TCGv_i64 start, TCGv_i64 incr) | |
848 | { | |
849 | unsigned vsz = vec_full_reg_size(s); | |
850 | TCGv_i32 desc = tcg_const_i32(simd_desc(vsz, vsz, 0)); | |
851 | TCGv_ptr t_zd = tcg_temp_new_ptr(); | |
852 | ||
853 | tcg_gen_addi_ptr(t_zd, cpu_env, vec_full_reg_offset(s, rd)); | |
854 | if (esz == 3) { | |
855 | gen_helper_sve_index_d(t_zd, start, incr, desc); | |
856 | } else { | |
857 | typedef void index_fn(TCGv_ptr, TCGv_i32, TCGv_i32, TCGv_i32); | |
858 | static index_fn * const fns[3] = { | |
859 | gen_helper_sve_index_b, | |
860 | gen_helper_sve_index_h, | |
861 | gen_helper_sve_index_s, | |
862 | }; | |
863 | TCGv_i32 s32 = tcg_temp_new_i32(); | |
864 | TCGv_i32 i32 = tcg_temp_new_i32(); | |
865 | ||
866 | tcg_gen_extrl_i64_i32(s32, start); | |
867 | tcg_gen_extrl_i64_i32(i32, incr); | |
868 | fns[esz](t_zd, s32, i32, desc); | |
869 | ||
870 | tcg_temp_free_i32(s32); | |
871 | tcg_temp_free_i32(i32); | |
872 | } | |
873 | tcg_temp_free_ptr(t_zd); | |
874 | tcg_temp_free_i32(desc); | |
875 | } | |
876 | ||
877 | static bool trans_INDEX_ii(DisasContext *s, arg_INDEX_ii *a, uint32_t insn) | |
878 | { | |
879 | if (sve_access_check(s)) { | |
880 | TCGv_i64 start = tcg_const_i64(a->imm1); | |
881 | TCGv_i64 incr = tcg_const_i64(a->imm2); | |
882 | do_index(s, a->esz, a->rd, start, incr); | |
883 | tcg_temp_free_i64(start); | |
884 | tcg_temp_free_i64(incr); | |
885 | } | |
886 | return true; | |
887 | } | |
888 | ||
889 | static bool trans_INDEX_ir(DisasContext *s, arg_INDEX_ir *a, uint32_t insn) | |
890 | { | |
891 | if (sve_access_check(s)) { | |
892 | TCGv_i64 start = tcg_const_i64(a->imm); | |
893 | TCGv_i64 incr = cpu_reg(s, a->rm); | |
894 | do_index(s, a->esz, a->rd, start, incr); | |
895 | tcg_temp_free_i64(start); | |
896 | } | |
897 | return true; | |
898 | } | |
899 | ||
900 | static bool trans_INDEX_ri(DisasContext *s, arg_INDEX_ri *a, uint32_t insn) | |
901 | { | |
902 | if (sve_access_check(s)) { | |
903 | TCGv_i64 start = cpu_reg(s, a->rn); | |
904 | TCGv_i64 incr = tcg_const_i64(a->imm); | |
905 | do_index(s, a->esz, a->rd, start, incr); | |
906 | tcg_temp_free_i64(incr); | |
907 | } | |
908 | return true; | |
909 | } | |
910 | ||
911 | static bool trans_INDEX_rr(DisasContext *s, arg_INDEX_rr *a, uint32_t insn) | |
912 | { | |
913 | if (sve_access_check(s)) { | |
914 | TCGv_i64 start = cpu_reg(s, a->rn); | |
915 | TCGv_i64 incr = cpu_reg(s, a->rm); | |
916 | do_index(s, a->esz, a->rd, start, incr); | |
917 | } | |
918 | return true; | |
919 | } | |
920 | ||
96f922cc RH |
921 | /* |
922 | *** SVE Stack Allocation Group | |
923 | */ | |
924 | ||
925 | static bool trans_ADDVL(DisasContext *s, arg_ADDVL *a, uint32_t insn) | |
926 | { | |
927 | TCGv_i64 rd = cpu_reg_sp(s, a->rd); | |
928 | TCGv_i64 rn = cpu_reg_sp(s, a->rn); | |
929 | tcg_gen_addi_i64(rd, rn, a->imm * vec_full_reg_size(s)); | |
930 | return true; | |
931 | } | |
932 | ||
933 | static bool trans_ADDPL(DisasContext *s, arg_ADDPL *a, uint32_t insn) | |
934 | { | |
935 | TCGv_i64 rd = cpu_reg_sp(s, a->rd); | |
936 | TCGv_i64 rn = cpu_reg_sp(s, a->rn); | |
937 | tcg_gen_addi_i64(rd, rn, a->imm * pred_full_reg_size(s)); | |
938 | return true; | |
939 | } | |
940 | ||
941 | static bool trans_RDVL(DisasContext *s, arg_RDVL *a, uint32_t insn) | |
942 | { | |
943 | TCGv_i64 reg = cpu_reg(s, a->rd); | |
944 | tcg_gen_movi_i64(reg, a->imm * vec_full_reg_size(s)); | |
945 | return true; | |
946 | } | |
947 | ||
4b242d9c RH |
948 | /* |
949 | *** SVE Compute Vector Address Group | |
950 | */ | |
951 | ||
952 | static bool do_adr(DisasContext *s, arg_rrri *a, gen_helper_gvec_3 *fn) | |
953 | { | |
954 | if (sve_access_check(s)) { | |
955 | unsigned vsz = vec_full_reg_size(s); | |
956 | tcg_gen_gvec_3_ool(vec_full_reg_offset(s, a->rd), | |
957 | vec_full_reg_offset(s, a->rn), | |
958 | vec_full_reg_offset(s, a->rm), | |
959 | vsz, vsz, a->imm, fn); | |
960 | } | |
961 | return true; | |
962 | } | |
963 | ||
964 | static bool trans_ADR_p32(DisasContext *s, arg_rrri *a, uint32_t insn) | |
965 | { | |
966 | return do_adr(s, a, gen_helper_sve_adr_p32); | |
967 | } | |
968 | ||
969 | static bool trans_ADR_p64(DisasContext *s, arg_rrri *a, uint32_t insn) | |
970 | { | |
971 | return do_adr(s, a, gen_helper_sve_adr_p64); | |
972 | } | |
973 | ||
974 | static bool trans_ADR_s32(DisasContext *s, arg_rrri *a, uint32_t insn) | |
975 | { | |
976 | return do_adr(s, a, gen_helper_sve_adr_s32); | |
977 | } | |
978 | ||
979 | static bool trans_ADR_u32(DisasContext *s, arg_rrri *a, uint32_t insn) | |
980 | { | |
981 | return do_adr(s, a, gen_helper_sve_adr_u32); | |
982 | } | |
983 | ||
0762cd42 RH |
984 | /* |
985 | *** SVE Integer Misc - Unpredicated Group | |
986 | */ | |
987 | ||
988 | static bool trans_FEXPA(DisasContext *s, arg_rr_esz *a, uint32_t insn) | |
989 | { | |
990 | static gen_helper_gvec_2 * const fns[4] = { | |
991 | NULL, | |
992 | gen_helper_sve_fexpa_h, | |
993 | gen_helper_sve_fexpa_s, | |
994 | gen_helper_sve_fexpa_d, | |
995 | }; | |
996 | if (a->esz == 0) { | |
997 | return false; | |
998 | } | |
999 | if (sve_access_check(s)) { | |
1000 | unsigned vsz = vec_full_reg_size(s); | |
1001 | tcg_gen_gvec_2_ool(vec_full_reg_offset(s, a->rd), | |
1002 | vec_full_reg_offset(s, a->rn), | |
1003 | vsz, vsz, 0, fns[a->esz]); | |
1004 | } | |
1005 | return true; | |
1006 | } | |
1007 | ||
a1f233f2 RH |
1008 | static bool trans_FTSSEL(DisasContext *s, arg_rrr_esz *a, uint32_t insn) |
1009 | { | |
1010 | static gen_helper_gvec_3 * const fns[4] = { | |
1011 | NULL, | |
1012 | gen_helper_sve_ftssel_h, | |
1013 | gen_helper_sve_ftssel_s, | |
1014 | gen_helper_sve_ftssel_d, | |
1015 | }; | |
1016 | if (a->esz == 0) { | |
1017 | return false; | |
1018 | } | |
1019 | if (sve_access_check(s)) { | |
1020 | unsigned vsz = vec_full_reg_size(s); | |
1021 | tcg_gen_gvec_3_ool(vec_full_reg_offset(s, a->rd), | |
1022 | vec_full_reg_offset(s, a->rn), | |
1023 | vec_full_reg_offset(s, a->rm), | |
1024 | vsz, vsz, 0, fns[a->esz]); | |
1025 | } | |
1026 | return true; | |
1027 | } | |
1028 | ||
516e246a RH |
1029 | /* |
1030 | *** SVE Predicate Logical Operations Group | |
1031 | */ | |
1032 | ||
1033 | static bool do_pppp_flags(DisasContext *s, arg_rprr_s *a, | |
1034 | const GVecGen4 *gvec_op) | |
1035 | { | |
1036 | if (!sve_access_check(s)) { | |
1037 | return true; | |
1038 | } | |
1039 | ||
1040 | unsigned psz = pred_gvec_reg_size(s); | |
1041 | int dofs = pred_full_reg_offset(s, a->rd); | |
1042 | int nofs = pred_full_reg_offset(s, a->rn); | |
1043 | int mofs = pred_full_reg_offset(s, a->rm); | |
1044 | int gofs = pred_full_reg_offset(s, a->pg); | |
1045 | ||
1046 | if (psz == 8) { | |
1047 | /* Do the operation and the flags generation in temps. */ | |
1048 | TCGv_i64 pd = tcg_temp_new_i64(); | |
1049 | TCGv_i64 pn = tcg_temp_new_i64(); | |
1050 | TCGv_i64 pm = tcg_temp_new_i64(); | |
1051 | TCGv_i64 pg = tcg_temp_new_i64(); | |
1052 | ||
1053 | tcg_gen_ld_i64(pn, cpu_env, nofs); | |
1054 | tcg_gen_ld_i64(pm, cpu_env, mofs); | |
1055 | tcg_gen_ld_i64(pg, cpu_env, gofs); | |
1056 | ||
1057 | gvec_op->fni8(pd, pn, pm, pg); | |
1058 | tcg_gen_st_i64(pd, cpu_env, dofs); | |
1059 | ||
1060 | do_predtest1(pd, pg); | |
1061 | ||
1062 | tcg_temp_free_i64(pd); | |
1063 | tcg_temp_free_i64(pn); | |
1064 | tcg_temp_free_i64(pm); | |
1065 | tcg_temp_free_i64(pg); | |
1066 | } else { | |
1067 | /* The operation and flags generation is large. The computation | |
1068 | * of the flags depends on the original contents of the guarding | |
1069 | * predicate. If the destination overwrites the guarding predicate, | |
1070 | * then the easiest way to get this right is to save a copy. | |
1071 | */ | |
1072 | int tofs = gofs; | |
1073 | if (a->rd == a->pg) { | |
1074 | tofs = offsetof(CPUARMState, vfp.preg_tmp); | |
1075 | tcg_gen_gvec_mov(0, tofs, gofs, psz, psz); | |
1076 | } | |
1077 | ||
1078 | tcg_gen_gvec_4(dofs, nofs, mofs, gofs, psz, psz, gvec_op); | |
1079 | do_predtest(s, dofs, tofs, psz / 8); | |
1080 | } | |
1081 | return true; | |
1082 | } | |
1083 | ||
1084 | static void gen_and_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg) | |
1085 | { | |
1086 | tcg_gen_and_i64(pd, pn, pm); | |
1087 | tcg_gen_and_i64(pd, pd, pg); | |
1088 | } | |
1089 | ||
1090 | static void gen_and_pg_vec(unsigned vece, TCGv_vec pd, TCGv_vec pn, | |
1091 | TCGv_vec pm, TCGv_vec pg) | |
1092 | { | |
1093 | tcg_gen_and_vec(vece, pd, pn, pm); | |
1094 | tcg_gen_and_vec(vece, pd, pd, pg); | |
1095 | } | |
1096 | ||
1097 | static bool trans_AND_pppp(DisasContext *s, arg_rprr_s *a, uint32_t insn) | |
1098 | { | |
1099 | static const GVecGen4 op = { | |
1100 | .fni8 = gen_and_pg_i64, | |
1101 | .fniv = gen_and_pg_vec, | |
1102 | .fno = gen_helper_sve_and_pppp, | |
1103 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
1104 | }; | |
1105 | if (a->s) { | |
1106 | return do_pppp_flags(s, a, &op); | |
1107 | } else if (a->rn == a->rm) { | |
1108 | if (a->pg == a->rn) { | |
1109 | return do_mov_p(s, a->rd, a->rn); | |
1110 | } else { | |
1111 | return do_vector3_p(s, tcg_gen_gvec_and, 0, a->rd, a->rn, a->pg); | |
1112 | } | |
1113 | } else if (a->pg == a->rn || a->pg == a->rm) { | |
1114 | return do_vector3_p(s, tcg_gen_gvec_and, 0, a->rd, a->rn, a->rm); | |
1115 | } else { | |
1116 | return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg); | |
1117 | } | |
1118 | } | |
1119 | ||
1120 | static void gen_bic_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg) | |
1121 | { | |
1122 | tcg_gen_andc_i64(pd, pn, pm); | |
1123 | tcg_gen_and_i64(pd, pd, pg); | |
1124 | } | |
1125 | ||
1126 | static void gen_bic_pg_vec(unsigned vece, TCGv_vec pd, TCGv_vec pn, | |
1127 | TCGv_vec pm, TCGv_vec pg) | |
1128 | { | |
1129 | tcg_gen_andc_vec(vece, pd, pn, pm); | |
1130 | tcg_gen_and_vec(vece, pd, pd, pg); | |
1131 | } | |
1132 | ||
1133 | static bool trans_BIC_pppp(DisasContext *s, arg_rprr_s *a, uint32_t insn) | |
1134 | { | |
1135 | static const GVecGen4 op = { | |
1136 | .fni8 = gen_bic_pg_i64, | |
1137 | .fniv = gen_bic_pg_vec, | |
1138 | .fno = gen_helper_sve_bic_pppp, | |
1139 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
1140 | }; | |
1141 | if (a->s) { | |
1142 | return do_pppp_flags(s, a, &op); | |
1143 | } else if (a->pg == a->rn) { | |
1144 | return do_vector3_p(s, tcg_gen_gvec_andc, 0, a->rd, a->rn, a->rm); | |
1145 | } else { | |
1146 | return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg); | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | static void gen_eor_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg) | |
1151 | { | |
1152 | tcg_gen_xor_i64(pd, pn, pm); | |
1153 | tcg_gen_and_i64(pd, pd, pg); | |
1154 | } | |
1155 | ||
1156 | static void gen_eor_pg_vec(unsigned vece, TCGv_vec pd, TCGv_vec pn, | |
1157 | TCGv_vec pm, TCGv_vec pg) | |
1158 | { | |
1159 | tcg_gen_xor_vec(vece, pd, pn, pm); | |
1160 | tcg_gen_and_vec(vece, pd, pd, pg); | |
1161 | } | |
1162 | ||
1163 | static bool trans_EOR_pppp(DisasContext *s, arg_rprr_s *a, uint32_t insn) | |
1164 | { | |
1165 | static const GVecGen4 op = { | |
1166 | .fni8 = gen_eor_pg_i64, | |
1167 | .fniv = gen_eor_pg_vec, | |
1168 | .fno = gen_helper_sve_eor_pppp, | |
1169 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
1170 | }; | |
1171 | if (a->s) { | |
1172 | return do_pppp_flags(s, a, &op); | |
1173 | } else { | |
1174 | return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg); | |
1175 | } | |
1176 | } | |
1177 | ||
1178 | static void gen_sel_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg) | |
1179 | { | |
1180 | tcg_gen_and_i64(pn, pn, pg); | |
1181 | tcg_gen_andc_i64(pm, pm, pg); | |
1182 | tcg_gen_or_i64(pd, pn, pm); | |
1183 | } | |
1184 | ||
1185 | static void gen_sel_pg_vec(unsigned vece, TCGv_vec pd, TCGv_vec pn, | |
1186 | TCGv_vec pm, TCGv_vec pg) | |
1187 | { | |
1188 | tcg_gen_and_vec(vece, pn, pn, pg); | |
1189 | tcg_gen_andc_vec(vece, pm, pm, pg); | |
1190 | tcg_gen_or_vec(vece, pd, pn, pm); | |
1191 | } | |
1192 | ||
1193 | static bool trans_SEL_pppp(DisasContext *s, arg_rprr_s *a, uint32_t insn) | |
1194 | { | |
1195 | static const GVecGen4 op = { | |
1196 | .fni8 = gen_sel_pg_i64, | |
1197 | .fniv = gen_sel_pg_vec, | |
1198 | .fno = gen_helper_sve_sel_pppp, | |
1199 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
1200 | }; | |
1201 | if (a->s) { | |
1202 | return false; | |
1203 | } else { | |
1204 | return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg); | |
1205 | } | |
1206 | } | |
1207 | ||
1208 | static void gen_orr_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg) | |
1209 | { | |
1210 | tcg_gen_or_i64(pd, pn, pm); | |
1211 | tcg_gen_and_i64(pd, pd, pg); | |
1212 | } | |
1213 | ||
1214 | static void gen_orr_pg_vec(unsigned vece, TCGv_vec pd, TCGv_vec pn, | |
1215 | TCGv_vec pm, TCGv_vec pg) | |
1216 | { | |
1217 | tcg_gen_or_vec(vece, pd, pn, pm); | |
1218 | tcg_gen_and_vec(vece, pd, pd, pg); | |
1219 | } | |
1220 | ||
1221 | static bool trans_ORR_pppp(DisasContext *s, arg_rprr_s *a, uint32_t insn) | |
1222 | { | |
1223 | static const GVecGen4 op = { | |
1224 | .fni8 = gen_orr_pg_i64, | |
1225 | .fniv = gen_orr_pg_vec, | |
1226 | .fno = gen_helper_sve_orr_pppp, | |
1227 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
1228 | }; | |
1229 | if (a->s) { | |
1230 | return do_pppp_flags(s, a, &op); | |
1231 | } else if (a->pg == a->rn && a->rn == a->rm) { | |
1232 | return do_mov_p(s, a->rd, a->rn); | |
1233 | } else { | |
1234 | return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg); | |
1235 | } | |
1236 | } | |
1237 | ||
1238 | static void gen_orn_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg) | |
1239 | { | |
1240 | tcg_gen_orc_i64(pd, pn, pm); | |
1241 | tcg_gen_and_i64(pd, pd, pg); | |
1242 | } | |
1243 | ||
1244 | static void gen_orn_pg_vec(unsigned vece, TCGv_vec pd, TCGv_vec pn, | |
1245 | TCGv_vec pm, TCGv_vec pg) | |
1246 | { | |
1247 | tcg_gen_orc_vec(vece, pd, pn, pm); | |
1248 | tcg_gen_and_vec(vece, pd, pd, pg); | |
1249 | } | |
1250 | ||
1251 | static bool trans_ORN_pppp(DisasContext *s, arg_rprr_s *a, uint32_t insn) | |
1252 | { | |
1253 | static const GVecGen4 op = { | |
1254 | .fni8 = gen_orn_pg_i64, | |
1255 | .fniv = gen_orn_pg_vec, | |
1256 | .fno = gen_helper_sve_orn_pppp, | |
1257 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
1258 | }; | |
1259 | if (a->s) { | |
1260 | return do_pppp_flags(s, a, &op); | |
1261 | } else { | |
1262 | return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg); | |
1263 | } | |
1264 | } | |
1265 | ||
1266 | static void gen_nor_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg) | |
1267 | { | |
1268 | tcg_gen_or_i64(pd, pn, pm); | |
1269 | tcg_gen_andc_i64(pd, pg, pd); | |
1270 | } | |
1271 | ||
1272 | static void gen_nor_pg_vec(unsigned vece, TCGv_vec pd, TCGv_vec pn, | |
1273 | TCGv_vec pm, TCGv_vec pg) | |
1274 | { | |
1275 | tcg_gen_or_vec(vece, pd, pn, pm); | |
1276 | tcg_gen_andc_vec(vece, pd, pg, pd); | |
1277 | } | |
1278 | ||
1279 | static bool trans_NOR_pppp(DisasContext *s, arg_rprr_s *a, uint32_t insn) | |
1280 | { | |
1281 | static const GVecGen4 op = { | |
1282 | .fni8 = gen_nor_pg_i64, | |
1283 | .fniv = gen_nor_pg_vec, | |
1284 | .fno = gen_helper_sve_nor_pppp, | |
1285 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
1286 | }; | |
1287 | if (a->s) { | |
1288 | return do_pppp_flags(s, a, &op); | |
1289 | } else { | |
1290 | return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg); | |
1291 | } | |
1292 | } | |
1293 | ||
1294 | static void gen_nand_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg) | |
1295 | { | |
1296 | tcg_gen_and_i64(pd, pn, pm); | |
1297 | tcg_gen_andc_i64(pd, pg, pd); | |
1298 | } | |
1299 | ||
1300 | static void gen_nand_pg_vec(unsigned vece, TCGv_vec pd, TCGv_vec pn, | |
1301 | TCGv_vec pm, TCGv_vec pg) | |
1302 | { | |
1303 | tcg_gen_and_vec(vece, pd, pn, pm); | |
1304 | tcg_gen_andc_vec(vece, pd, pg, pd); | |
1305 | } | |
1306 | ||
1307 | static bool trans_NAND_pppp(DisasContext *s, arg_rprr_s *a, uint32_t insn) | |
1308 | { | |
1309 | static const GVecGen4 op = { | |
1310 | .fni8 = gen_nand_pg_i64, | |
1311 | .fniv = gen_nand_pg_vec, | |
1312 | .fno = gen_helper_sve_nand_pppp, | |
1313 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
1314 | }; | |
1315 | if (a->s) { | |
1316 | return do_pppp_flags(s, a, &op); | |
1317 | } else { | |
1318 | return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg); | |
1319 | } | |
1320 | } | |
1321 | ||
9e18d7a6 RH |
1322 | /* |
1323 | *** SVE Predicate Misc Group | |
1324 | */ | |
1325 | ||
1326 | static bool trans_PTEST(DisasContext *s, arg_PTEST *a, uint32_t insn) | |
1327 | { | |
1328 | if (sve_access_check(s)) { | |
1329 | int nofs = pred_full_reg_offset(s, a->rn); | |
1330 | int gofs = pred_full_reg_offset(s, a->pg); | |
1331 | int words = DIV_ROUND_UP(pred_full_reg_size(s), 8); | |
1332 | ||
1333 | if (words == 1) { | |
1334 | TCGv_i64 pn = tcg_temp_new_i64(); | |
1335 | TCGv_i64 pg = tcg_temp_new_i64(); | |
1336 | ||
1337 | tcg_gen_ld_i64(pn, cpu_env, nofs); | |
1338 | tcg_gen_ld_i64(pg, cpu_env, gofs); | |
1339 | do_predtest1(pn, pg); | |
1340 | ||
1341 | tcg_temp_free_i64(pn); | |
1342 | tcg_temp_free_i64(pg); | |
1343 | } else { | |
1344 | do_predtest(s, nofs, gofs, words); | |
1345 | } | |
1346 | } | |
1347 | return true; | |
1348 | } | |
1349 | ||
028e2a7b RH |
1350 | /* See the ARM pseudocode DecodePredCount. */ |
1351 | static unsigned decode_pred_count(unsigned fullsz, int pattern, int esz) | |
1352 | { | |
1353 | unsigned elements = fullsz >> esz; | |
1354 | unsigned bound; | |
1355 | ||
1356 | switch (pattern) { | |
1357 | case 0x0: /* POW2 */ | |
1358 | return pow2floor(elements); | |
1359 | case 0x1: /* VL1 */ | |
1360 | case 0x2: /* VL2 */ | |
1361 | case 0x3: /* VL3 */ | |
1362 | case 0x4: /* VL4 */ | |
1363 | case 0x5: /* VL5 */ | |
1364 | case 0x6: /* VL6 */ | |
1365 | case 0x7: /* VL7 */ | |
1366 | case 0x8: /* VL8 */ | |
1367 | bound = pattern; | |
1368 | break; | |
1369 | case 0x9: /* VL16 */ | |
1370 | case 0xa: /* VL32 */ | |
1371 | case 0xb: /* VL64 */ | |
1372 | case 0xc: /* VL128 */ | |
1373 | case 0xd: /* VL256 */ | |
1374 | bound = 16 << (pattern - 9); | |
1375 | break; | |
1376 | case 0x1d: /* MUL4 */ | |
1377 | return elements - elements % 4; | |
1378 | case 0x1e: /* MUL3 */ | |
1379 | return elements - elements % 3; | |
1380 | case 0x1f: /* ALL */ | |
1381 | return elements; | |
1382 | default: /* #uimm5 */ | |
1383 | return 0; | |
1384 | } | |
1385 | return elements >= bound ? bound : 0; | |
1386 | } | |
1387 | ||
1388 | /* This handles all of the predicate initialization instructions, | |
1389 | * PTRUE, PFALSE, SETFFR. For PFALSE, we will have set PAT == 32 | |
1390 | * so that decode_pred_count returns 0. For SETFFR, we will have | |
1391 | * set RD == 16 == FFR. | |
1392 | */ | |
1393 | static bool do_predset(DisasContext *s, int esz, int rd, int pat, bool setflag) | |
1394 | { | |
1395 | if (!sve_access_check(s)) { | |
1396 | return true; | |
1397 | } | |
1398 | ||
1399 | unsigned fullsz = vec_full_reg_size(s); | |
1400 | unsigned ofs = pred_full_reg_offset(s, rd); | |
1401 | unsigned numelem, setsz, i; | |
1402 | uint64_t word, lastword; | |
1403 | TCGv_i64 t; | |
1404 | ||
1405 | numelem = decode_pred_count(fullsz, pat, esz); | |
1406 | ||
1407 | /* Determine what we must store into each bit, and how many. */ | |
1408 | if (numelem == 0) { | |
1409 | lastword = word = 0; | |
1410 | setsz = fullsz; | |
1411 | } else { | |
1412 | setsz = numelem << esz; | |
1413 | lastword = word = pred_esz_masks[esz]; | |
1414 | if (setsz % 64) { | |
1415 | lastword &= ~(-1ull << (setsz % 64)); | |
1416 | } | |
1417 | } | |
1418 | ||
1419 | t = tcg_temp_new_i64(); | |
1420 | if (fullsz <= 64) { | |
1421 | tcg_gen_movi_i64(t, lastword); | |
1422 | tcg_gen_st_i64(t, cpu_env, ofs); | |
1423 | goto done; | |
1424 | } | |
1425 | ||
1426 | if (word == lastword) { | |
1427 | unsigned maxsz = size_for_gvec(fullsz / 8); | |
1428 | unsigned oprsz = size_for_gvec(setsz / 8); | |
1429 | ||
1430 | if (oprsz * 8 == setsz) { | |
1431 | tcg_gen_gvec_dup64i(ofs, oprsz, maxsz, word); | |
1432 | goto done; | |
1433 | } | |
1434 | if (oprsz * 8 == setsz + 8) { | |
1435 | tcg_gen_gvec_dup64i(ofs, oprsz, maxsz, word); | |
1436 | tcg_gen_movi_i64(t, 0); | |
1437 | tcg_gen_st_i64(t, cpu_env, ofs + oprsz - 8); | |
1438 | goto done; | |
1439 | } | |
1440 | } | |
1441 | ||
1442 | setsz /= 8; | |
1443 | fullsz /= 8; | |
1444 | ||
1445 | tcg_gen_movi_i64(t, word); | |
1446 | for (i = 0; i < setsz; i += 8) { | |
1447 | tcg_gen_st_i64(t, cpu_env, ofs + i); | |
1448 | } | |
1449 | if (lastword != word) { | |
1450 | tcg_gen_movi_i64(t, lastword); | |
1451 | tcg_gen_st_i64(t, cpu_env, ofs + i); | |
1452 | i += 8; | |
1453 | } | |
1454 | if (i < fullsz) { | |
1455 | tcg_gen_movi_i64(t, 0); | |
1456 | for (; i < fullsz; i += 8) { | |
1457 | tcg_gen_st_i64(t, cpu_env, ofs + i); | |
1458 | } | |
1459 | } | |
1460 | ||
1461 | done: | |
1462 | tcg_temp_free_i64(t); | |
1463 | ||
1464 | /* PTRUES */ | |
1465 | if (setflag) { | |
1466 | tcg_gen_movi_i32(cpu_NF, -(word != 0)); | |
1467 | tcg_gen_movi_i32(cpu_CF, word == 0); | |
1468 | tcg_gen_movi_i32(cpu_VF, 0); | |
1469 | tcg_gen_mov_i32(cpu_ZF, cpu_NF); | |
1470 | } | |
1471 | return true; | |
1472 | } | |
1473 | ||
1474 | static bool trans_PTRUE(DisasContext *s, arg_PTRUE *a, uint32_t insn) | |
1475 | { | |
1476 | return do_predset(s, a->esz, a->rd, a->pat, a->s); | |
1477 | } | |
1478 | ||
1479 | static bool trans_SETFFR(DisasContext *s, arg_SETFFR *a, uint32_t insn) | |
1480 | { | |
1481 | /* Note pat == 31 is #all, to set all elements. */ | |
1482 | return do_predset(s, 0, FFR_PRED_NUM, 31, false); | |
1483 | } | |
1484 | ||
1485 | static bool trans_PFALSE(DisasContext *s, arg_PFALSE *a, uint32_t insn) | |
1486 | { | |
1487 | /* Note pat == 32 is #unimp, to set no elements. */ | |
1488 | return do_predset(s, 0, a->rd, 32, false); | |
1489 | } | |
1490 | ||
1491 | static bool trans_RDFFR_p(DisasContext *s, arg_RDFFR_p *a, uint32_t insn) | |
1492 | { | |
1493 | /* The path through do_pppp_flags is complicated enough to want to avoid | |
1494 | * duplication. Frob the arguments into the form of a predicated AND. | |
1495 | */ | |
1496 | arg_rprr_s alt_a = { | |
1497 | .rd = a->rd, .pg = a->pg, .s = a->s, | |
1498 | .rn = FFR_PRED_NUM, .rm = FFR_PRED_NUM, | |
1499 | }; | |
1500 | return trans_AND_pppp(s, &alt_a, insn); | |
1501 | } | |
1502 | ||
1503 | static bool trans_RDFFR(DisasContext *s, arg_RDFFR *a, uint32_t insn) | |
1504 | { | |
1505 | return do_mov_p(s, a->rd, FFR_PRED_NUM); | |
1506 | } | |
1507 | ||
1508 | static bool trans_WRFFR(DisasContext *s, arg_WRFFR *a, uint32_t insn) | |
1509 | { | |
1510 | return do_mov_p(s, FFR_PRED_NUM, a->rn); | |
1511 | } | |
1512 | ||
1513 | static bool do_pfirst_pnext(DisasContext *s, arg_rr_esz *a, | |
1514 | void (*gen_fn)(TCGv_i32, TCGv_ptr, | |
1515 | TCGv_ptr, TCGv_i32)) | |
1516 | { | |
1517 | if (!sve_access_check(s)) { | |
1518 | return true; | |
1519 | } | |
1520 | ||
1521 | TCGv_ptr t_pd = tcg_temp_new_ptr(); | |
1522 | TCGv_ptr t_pg = tcg_temp_new_ptr(); | |
1523 | TCGv_i32 t; | |
1524 | unsigned desc; | |
1525 | ||
1526 | desc = DIV_ROUND_UP(pred_full_reg_size(s), 8); | |
1527 | desc = deposit32(desc, SIMD_DATA_SHIFT, 2, a->esz); | |
1528 | ||
1529 | tcg_gen_addi_ptr(t_pd, cpu_env, pred_full_reg_offset(s, a->rd)); | |
1530 | tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, a->rn)); | |
1531 | t = tcg_const_i32(desc); | |
1532 | ||
1533 | gen_fn(t, t_pd, t_pg, t); | |
1534 | tcg_temp_free_ptr(t_pd); | |
1535 | tcg_temp_free_ptr(t_pg); | |
1536 | ||
1537 | do_pred_flags(t); | |
1538 | tcg_temp_free_i32(t); | |
1539 | return true; | |
1540 | } | |
1541 | ||
1542 | static bool trans_PFIRST(DisasContext *s, arg_rr_esz *a, uint32_t insn) | |
1543 | { | |
1544 | return do_pfirst_pnext(s, a, gen_helper_sve_pfirst); | |
1545 | } | |
1546 | ||
1547 | static bool trans_PNEXT(DisasContext *s, arg_rr_esz *a, uint32_t insn) | |
1548 | { | |
1549 | return do_pfirst_pnext(s, a, gen_helper_sve_pnext); | |
1550 | } | |
1551 | ||
24e82e68 RH |
1552 | /* |
1553 | *** SVE Element Count Group | |
1554 | */ | |
1555 | ||
1556 | /* Perform an inline saturating addition of a 32-bit value within | |
1557 | * a 64-bit register. The second operand is known to be positive, | |
1558 | * which halves the comparisions we must perform to bound the result. | |
1559 | */ | |
1560 | static void do_sat_addsub_32(TCGv_i64 reg, TCGv_i64 val, bool u, bool d) | |
1561 | { | |
1562 | int64_t ibound; | |
1563 | TCGv_i64 bound; | |
1564 | TCGCond cond; | |
1565 | ||
1566 | /* Use normal 64-bit arithmetic to detect 32-bit overflow. */ | |
1567 | if (u) { | |
1568 | tcg_gen_ext32u_i64(reg, reg); | |
1569 | } else { | |
1570 | tcg_gen_ext32s_i64(reg, reg); | |
1571 | } | |
1572 | if (d) { | |
1573 | tcg_gen_sub_i64(reg, reg, val); | |
1574 | ibound = (u ? 0 : INT32_MIN); | |
1575 | cond = TCG_COND_LT; | |
1576 | } else { | |
1577 | tcg_gen_add_i64(reg, reg, val); | |
1578 | ibound = (u ? UINT32_MAX : INT32_MAX); | |
1579 | cond = TCG_COND_GT; | |
1580 | } | |
1581 | bound = tcg_const_i64(ibound); | |
1582 | tcg_gen_movcond_i64(cond, reg, reg, bound, bound, reg); | |
1583 | tcg_temp_free_i64(bound); | |
1584 | } | |
1585 | ||
1586 | /* Similarly with 64-bit values. */ | |
1587 | static void do_sat_addsub_64(TCGv_i64 reg, TCGv_i64 val, bool u, bool d) | |
1588 | { | |
1589 | TCGv_i64 t0 = tcg_temp_new_i64(); | |
1590 | TCGv_i64 t1 = tcg_temp_new_i64(); | |
1591 | TCGv_i64 t2; | |
1592 | ||
1593 | if (u) { | |
1594 | if (d) { | |
1595 | tcg_gen_sub_i64(t0, reg, val); | |
1596 | tcg_gen_movi_i64(t1, 0); | |
1597 | tcg_gen_movcond_i64(TCG_COND_LTU, reg, reg, val, t1, t0); | |
1598 | } else { | |
1599 | tcg_gen_add_i64(t0, reg, val); | |
1600 | tcg_gen_movi_i64(t1, -1); | |
1601 | tcg_gen_movcond_i64(TCG_COND_LTU, reg, t0, reg, t1, t0); | |
1602 | } | |
1603 | } else { | |
1604 | if (d) { | |
1605 | /* Detect signed overflow for subtraction. */ | |
1606 | tcg_gen_xor_i64(t0, reg, val); | |
1607 | tcg_gen_sub_i64(t1, reg, val); | |
1608 | tcg_gen_xor_i64(reg, reg, t0); | |
1609 | tcg_gen_and_i64(t0, t0, reg); | |
1610 | ||
1611 | /* Bound the result. */ | |
1612 | tcg_gen_movi_i64(reg, INT64_MIN); | |
1613 | t2 = tcg_const_i64(0); | |
1614 | tcg_gen_movcond_i64(TCG_COND_LT, reg, t0, t2, reg, t1); | |
1615 | } else { | |
1616 | /* Detect signed overflow for addition. */ | |
1617 | tcg_gen_xor_i64(t0, reg, val); | |
1618 | tcg_gen_add_i64(reg, reg, val); | |
1619 | tcg_gen_xor_i64(t1, reg, val); | |
1620 | tcg_gen_andc_i64(t0, t1, t0); | |
1621 | ||
1622 | /* Bound the result. */ | |
1623 | tcg_gen_movi_i64(t1, INT64_MAX); | |
1624 | t2 = tcg_const_i64(0); | |
1625 | tcg_gen_movcond_i64(TCG_COND_LT, reg, t0, t2, t1, reg); | |
1626 | } | |
1627 | tcg_temp_free_i64(t2); | |
1628 | } | |
1629 | tcg_temp_free_i64(t0); | |
1630 | tcg_temp_free_i64(t1); | |
1631 | } | |
1632 | ||
1633 | /* Similarly with a vector and a scalar operand. */ | |
1634 | static void do_sat_addsub_vec(DisasContext *s, int esz, int rd, int rn, | |
1635 | TCGv_i64 val, bool u, bool d) | |
1636 | { | |
1637 | unsigned vsz = vec_full_reg_size(s); | |
1638 | TCGv_ptr dptr, nptr; | |
1639 | TCGv_i32 t32, desc; | |
1640 | TCGv_i64 t64; | |
1641 | ||
1642 | dptr = tcg_temp_new_ptr(); | |
1643 | nptr = tcg_temp_new_ptr(); | |
1644 | tcg_gen_addi_ptr(dptr, cpu_env, vec_full_reg_offset(s, rd)); | |
1645 | tcg_gen_addi_ptr(nptr, cpu_env, vec_full_reg_offset(s, rn)); | |
1646 | desc = tcg_const_i32(simd_desc(vsz, vsz, 0)); | |
1647 | ||
1648 | switch (esz) { | |
1649 | case MO_8: | |
1650 | t32 = tcg_temp_new_i32(); | |
1651 | tcg_gen_extrl_i64_i32(t32, val); | |
1652 | if (d) { | |
1653 | tcg_gen_neg_i32(t32, t32); | |
1654 | } | |
1655 | if (u) { | |
1656 | gen_helper_sve_uqaddi_b(dptr, nptr, t32, desc); | |
1657 | } else { | |
1658 | gen_helper_sve_sqaddi_b(dptr, nptr, t32, desc); | |
1659 | } | |
1660 | tcg_temp_free_i32(t32); | |
1661 | break; | |
1662 | ||
1663 | case MO_16: | |
1664 | t32 = tcg_temp_new_i32(); | |
1665 | tcg_gen_extrl_i64_i32(t32, val); | |
1666 | if (d) { | |
1667 | tcg_gen_neg_i32(t32, t32); | |
1668 | } | |
1669 | if (u) { | |
1670 | gen_helper_sve_uqaddi_h(dptr, nptr, t32, desc); | |
1671 | } else { | |
1672 | gen_helper_sve_sqaddi_h(dptr, nptr, t32, desc); | |
1673 | } | |
1674 | tcg_temp_free_i32(t32); | |
1675 | break; | |
1676 | ||
1677 | case MO_32: | |
1678 | t64 = tcg_temp_new_i64(); | |
1679 | if (d) { | |
1680 | tcg_gen_neg_i64(t64, val); | |
1681 | } else { | |
1682 | tcg_gen_mov_i64(t64, val); | |
1683 | } | |
1684 | if (u) { | |
1685 | gen_helper_sve_uqaddi_s(dptr, nptr, t64, desc); | |
1686 | } else { | |
1687 | gen_helper_sve_sqaddi_s(dptr, nptr, t64, desc); | |
1688 | } | |
1689 | tcg_temp_free_i64(t64); | |
1690 | break; | |
1691 | ||
1692 | case MO_64: | |
1693 | if (u) { | |
1694 | if (d) { | |
1695 | gen_helper_sve_uqsubi_d(dptr, nptr, val, desc); | |
1696 | } else { | |
1697 | gen_helper_sve_uqaddi_d(dptr, nptr, val, desc); | |
1698 | } | |
1699 | } else if (d) { | |
1700 | t64 = tcg_temp_new_i64(); | |
1701 | tcg_gen_neg_i64(t64, val); | |
1702 | gen_helper_sve_sqaddi_d(dptr, nptr, t64, desc); | |
1703 | tcg_temp_free_i64(t64); | |
1704 | } else { | |
1705 | gen_helper_sve_sqaddi_d(dptr, nptr, val, desc); | |
1706 | } | |
1707 | break; | |
1708 | ||
1709 | default: | |
1710 | g_assert_not_reached(); | |
1711 | } | |
1712 | ||
1713 | tcg_temp_free_ptr(dptr); | |
1714 | tcg_temp_free_ptr(nptr); | |
1715 | tcg_temp_free_i32(desc); | |
1716 | } | |
1717 | ||
1718 | static bool trans_CNT_r(DisasContext *s, arg_CNT_r *a, uint32_t insn) | |
1719 | { | |
1720 | if (sve_access_check(s)) { | |
1721 | unsigned fullsz = vec_full_reg_size(s); | |
1722 | unsigned numelem = decode_pred_count(fullsz, a->pat, a->esz); | |
1723 | tcg_gen_movi_i64(cpu_reg(s, a->rd), numelem * a->imm); | |
1724 | } | |
1725 | return true; | |
1726 | } | |
1727 | ||
1728 | static bool trans_INCDEC_r(DisasContext *s, arg_incdec_cnt *a, uint32_t insn) | |
1729 | { | |
1730 | if (sve_access_check(s)) { | |
1731 | unsigned fullsz = vec_full_reg_size(s); | |
1732 | unsigned numelem = decode_pred_count(fullsz, a->pat, a->esz); | |
1733 | int inc = numelem * a->imm * (a->d ? -1 : 1); | |
1734 | TCGv_i64 reg = cpu_reg(s, a->rd); | |
1735 | ||
1736 | tcg_gen_addi_i64(reg, reg, inc); | |
1737 | } | |
1738 | return true; | |
1739 | } | |
1740 | ||
1741 | static bool trans_SINCDEC_r_32(DisasContext *s, arg_incdec_cnt *a, | |
1742 | uint32_t insn) | |
1743 | { | |
1744 | if (!sve_access_check(s)) { | |
1745 | return true; | |
1746 | } | |
1747 | ||
1748 | unsigned fullsz = vec_full_reg_size(s); | |
1749 | unsigned numelem = decode_pred_count(fullsz, a->pat, a->esz); | |
1750 | int inc = numelem * a->imm; | |
1751 | TCGv_i64 reg = cpu_reg(s, a->rd); | |
1752 | ||
1753 | /* Use normal 64-bit arithmetic to detect 32-bit overflow. */ | |
1754 | if (inc == 0) { | |
1755 | if (a->u) { | |
1756 | tcg_gen_ext32u_i64(reg, reg); | |
1757 | } else { | |
1758 | tcg_gen_ext32s_i64(reg, reg); | |
1759 | } | |
1760 | } else { | |
1761 | TCGv_i64 t = tcg_const_i64(inc); | |
1762 | do_sat_addsub_32(reg, t, a->u, a->d); | |
1763 | tcg_temp_free_i64(t); | |
1764 | } | |
1765 | return true; | |
1766 | } | |
1767 | ||
1768 | static bool trans_SINCDEC_r_64(DisasContext *s, arg_incdec_cnt *a, | |
1769 | uint32_t insn) | |
1770 | { | |
1771 | if (!sve_access_check(s)) { | |
1772 | return true; | |
1773 | } | |
1774 | ||
1775 | unsigned fullsz = vec_full_reg_size(s); | |
1776 | unsigned numelem = decode_pred_count(fullsz, a->pat, a->esz); | |
1777 | int inc = numelem * a->imm; | |
1778 | TCGv_i64 reg = cpu_reg(s, a->rd); | |
1779 | ||
1780 | if (inc != 0) { | |
1781 | TCGv_i64 t = tcg_const_i64(inc); | |
1782 | do_sat_addsub_64(reg, t, a->u, a->d); | |
1783 | tcg_temp_free_i64(t); | |
1784 | } | |
1785 | return true; | |
1786 | } | |
1787 | ||
1788 | static bool trans_INCDEC_v(DisasContext *s, arg_incdec2_cnt *a, uint32_t insn) | |
1789 | { | |
1790 | if (a->esz == 0) { | |
1791 | return false; | |
1792 | } | |
1793 | ||
1794 | unsigned fullsz = vec_full_reg_size(s); | |
1795 | unsigned numelem = decode_pred_count(fullsz, a->pat, a->esz); | |
1796 | int inc = numelem * a->imm; | |
1797 | ||
1798 | if (inc != 0) { | |
1799 | if (sve_access_check(s)) { | |
1800 | TCGv_i64 t = tcg_const_i64(a->d ? -inc : inc); | |
1801 | tcg_gen_gvec_adds(a->esz, vec_full_reg_offset(s, a->rd), | |
1802 | vec_full_reg_offset(s, a->rn), | |
1803 | t, fullsz, fullsz); | |
1804 | tcg_temp_free_i64(t); | |
1805 | } | |
1806 | } else { | |
1807 | do_mov_z(s, a->rd, a->rn); | |
1808 | } | |
1809 | return true; | |
1810 | } | |
1811 | ||
1812 | static bool trans_SINCDEC_v(DisasContext *s, arg_incdec2_cnt *a, | |
1813 | uint32_t insn) | |
1814 | { | |
1815 | if (a->esz == 0) { | |
1816 | return false; | |
1817 | } | |
1818 | ||
1819 | unsigned fullsz = vec_full_reg_size(s); | |
1820 | unsigned numelem = decode_pred_count(fullsz, a->pat, a->esz); | |
1821 | int inc = numelem * a->imm; | |
1822 | ||
1823 | if (inc != 0) { | |
1824 | if (sve_access_check(s)) { | |
1825 | TCGv_i64 t = tcg_const_i64(inc); | |
1826 | do_sat_addsub_vec(s, a->esz, a->rd, a->rn, t, a->u, a->d); | |
1827 | tcg_temp_free_i64(t); | |
1828 | } | |
1829 | } else { | |
1830 | do_mov_z(s, a->rd, a->rn); | |
1831 | } | |
1832 | return true; | |
1833 | } | |
1834 | ||
e1fa1164 RH |
1835 | /* |
1836 | *** SVE Bitwise Immediate Group | |
1837 | */ | |
1838 | ||
1839 | static bool do_zz_dbm(DisasContext *s, arg_rr_dbm *a, GVecGen2iFn *gvec_fn) | |
1840 | { | |
1841 | uint64_t imm; | |
1842 | if (!logic_imm_decode_wmask(&imm, extract32(a->dbm, 12, 1), | |
1843 | extract32(a->dbm, 0, 6), | |
1844 | extract32(a->dbm, 6, 6))) { | |
1845 | return false; | |
1846 | } | |
1847 | if (sve_access_check(s)) { | |
1848 | unsigned vsz = vec_full_reg_size(s); | |
1849 | gvec_fn(MO_64, vec_full_reg_offset(s, a->rd), | |
1850 | vec_full_reg_offset(s, a->rn), imm, vsz, vsz); | |
1851 | } | |
1852 | return true; | |
1853 | } | |
1854 | ||
1855 | static bool trans_AND_zzi(DisasContext *s, arg_rr_dbm *a, uint32_t insn) | |
1856 | { | |
1857 | return do_zz_dbm(s, a, tcg_gen_gvec_andi); | |
1858 | } | |
1859 | ||
1860 | static bool trans_ORR_zzi(DisasContext *s, arg_rr_dbm *a, uint32_t insn) | |
1861 | { | |
1862 | return do_zz_dbm(s, a, tcg_gen_gvec_ori); | |
1863 | } | |
1864 | ||
1865 | static bool trans_EOR_zzi(DisasContext *s, arg_rr_dbm *a, uint32_t insn) | |
1866 | { | |
1867 | return do_zz_dbm(s, a, tcg_gen_gvec_xori); | |
1868 | } | |
1869 | ||
1870 | static bool trans_DUPM(DisasContext *s, arg_DUPM *a, uint32_t insn) | |
1871 | { | |
1872 | uint64_t imm; | |
1873 | if (!logic_imm_decode_wmask(&imm, extract32(a->dbm, 12, 1), | |
1874 | extract32(a->dbm, 0, 6), | |
1875 | extract32(a->dbm, 6, 6))) { | |
1876 | return false; | |
1877 | } | |
1878 | if (sve_access_check(s)) { | |
1879 | do_dupi_z(s, a->rd, imm); | |
1880 | } | |
1881 | return true; | |
1882 | } | |
1883 | ||
f25a2361 RH |
1884 | /* |
1885 | *** SVE Integer Wide Immediate - Predicated Group | |
1886 | */ | |
1887 | ||
1888 | /* Implement all merging copies. This is used for CPY (immediate), | |
1889 | * FCPY, CPY (scalar), CPY (SIMD&FP scalar). | |
1890 | */ | |
1891 | static void do_cpy_m(DisasContext *s, int esz, int rd, int rn, int pg, | |
1892 | TCGv_i64 val) | |
1893 | { | |
1894 | typedef void gen_cpy(TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_i64, TCGv_i32); | |
1895 | static gen_cpy * const fns[4] = { | |
1896 | gen_helper_sve_cpy_m_b, gen_helper_sve_cpy_m_h, | |
1897 | gen_helper_sve_cpy_m_s, gen_helper_sve_cpy_m_d, | |
1898 | }; | |
1899 | unsigned vsz = vec_full_reg_size(s); | |
1900 | TCGv_i32 desc = tcg_const_i32(simd_desc(vsz, vsz, 0)); | |
1901 | TCGv_ptr t_zd = tcg_temp_new_ptr(); | |
1902 | TCGv_ptr t_zn = tcg_temp_new_ptr(); | |
1903 | TCGv_ptr t_pg = tcg_temp_new_ptr(); | |
1904 | ||
1905 | tcg_gen_addi_ptr(t_zd, cpu_env, vec_full_reg_offset(s, rd)); | |
1906 | tcg_gen_addi_ptr(t_zn, cpu_env, vec_full_reg_offset(s, rn)); | |
1907 | tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, pg)); | |
1908 | ||
1909 | fns[esz](t_zd, t_zn, t_pg, val, desc); | |
1910 | ||
1911 | tcg_temp_free_ptr(t_zd); | |
1912 | tcg_temp_free_ptr(t_zn); | |
1913 | tcg_temp_free_ptr(t_pg); | |
1914 | tcg_temp_free_i32(desc); | |
1915 | } | |
1916 | ||
1917 | static bool trans_FCPY(DisasContext *s, arg_FCPY *a, uint32_t insn) | |
1918 | { | |
1919 | if (a->esz == 0) { | |
1920 | return false; | |
1921 | } | |
1922 | if (sve_access_check(s)) { | |
1923 | /* Decode the VFP immediate. */ | |
1924 | uint64_t imm = vfp_expand_imm(a->esz, a->imm); | |
1925 | TCGv_i64 t_imm = tcg_const_i64(imm); | |
1926 | do_cpy_m(s, a->esz, a->rd, a->rn, a->pg, t_imm); | |
1927 | tcg_temp_free_i64(t_imm); | |
1928 | } | |
1929 | return true; | |
1930 | } | |
1931 | ||
1932 | static bool trans_CPY_m_i(DisasContext *s, arg_rpri_esz *a, uint32_t insn) | |
1933 | { | |
1934 | if (a->esz == 0 && extract32(insn, 13, 1)) { | |
1935 | return false; | |
1936 | } | |
1937 | if (sve_access_check(s)) { | |
1938 | TCGv_i64 t_imm = tcg_const_i64(a->imm); | |
1939 | do_cpy_m(s, a->esz, a->rd, a->rn, a->pg, t_imm); | |
1940 | tcg_temp_free_i64(t_imm); | |
1941 | } | |
1942 | return true; | |
1943 | } | |
1944 | ||
1945 | static bool trans_CPY_z_i(DisasContext *s, arg_CPY_z_i *a, uint32_t insn) | |
1946 | { | |
1947 | static gen_helper_gvec_2i * const fns[4] = { | |
1948 | gen_helper_sve_cpy_z_b, gen_helper_sve_cpy_z_h, | |
1949 | gen_helper_sve_cpy_z_s, gen_helper_sve_cpy_z_d, | |
1950 | }; | |
1951 | ||
1952 | if (a->esz == 0 && extract32(insn, 13, 1)) { | |
1953 | return false; | |
1954 | } | |
1955 | if (sve_access_check(s)) { | |
1956 | unsigned vsz = vec_full_reg_size(s); | |
1957 | TCGv_i64 t_imm = tcg_const_i64(a->imm); | |
1958 | tcg_gen_gvec_2i_ool(vec_full_reg_offset(s, a->rd), | |
1959 | pred_full_reg_offset(s, a->pg), | |
1960 | t_imm, vsz, vsz, 0, fns[a->esz]); | |
1961 | tcg_temp_free_i64(t_imm); | |
1962 | } | |
1963 | return true; | |
1964 | } | |
1965 | ||
b94f8f60 RH |
1966 | /* |
1967 | *** SVE Permute Extract Group | |
1968 | */ | |
1969 | ||
1970 | static bool trans_EXT(DisasContext *s, arg_EXT *a, uint32_t insn) | |
1971 | { | |
1972 | if (!sve_access_check(s)) { | |
1973 | return true; | |
1974 | } | |
1975 | ||
1976 | unsigned vsz = vec_full_reg_size(s); | |
1977 | unsigned n_ofs = a->imm >= vsz ? 0 : a->imm; | |
1978 | unsigned n_siz = vsz - n_ofs; | |
1979 | unsigned d = vec_full_reg_offset(s, a->rd); | |
1980 | unsigned n = vec_full_reg_offset(s, a->rn); | |
1981 | unsigned m = vec_full_reg_offset(s, a->rm); | |
1982 | ||
1983 | /* Use host vector move insns if we have appropriate sizes | |
1984 | * and no unfortunate overlap. | |
1985 | */ | |
1986 | if (m != d | |
1987 | && n_ofs == size_for_gvec(n_ofs) | |
1988 | && n_siz == size_for_gvec(n_siz) | |
1989 | && (d != n || n_siz <= n_ofs)) { | |
1990 | tcg_gen_gvec_mov(0, d, n + n_ofs, n_siz, n_siz); | |
1991 | if (n_ofs != 0) { | |
1992 | tcg_gen_gvec_mov(0, d + n_siz, m, n_ofs, n_ofs); | |
1993 | } | |
1994 | } else { | |
1995 | tcg_gen_gvec_3_ool(d, n, m, vsz, vsz, n_ofs, gen_helper_sve_ext); | |
1996 | } | |
1997 | return true; | |
1998 | } | |
1999 | ||
30562ab7 RH |
2000 | /* |
2001 | *** SVE Permute - Unpredicated Group | |
2002 | */ | |
2003 | ||
2004 | static bool trans_DUP_s(DisasContext *s, arg_DUP_s *a, uint32_t insn) | |
2005 | { | |
2006 | if (sve_access_check(s)) { | |
2007 | unsigned vsz = vec_full_reg_size(s); | |
2008 | tcg_gen_gvec_dup_i64(a->esz, vec_full_reg_offset(s, a->rd), | |
2009 | vsz, vsz, cpu_reg_sp(s, a->rn)); | |
2010 | } | |
2011 | return true; | |
2012 | } | |
2013 | ||
2014 | static bool trans_DUP_x(DisasContext *s, arg_DUP_x *a, uint32_t insn) | |
2015 | { | |
2016 | if ((a->imm & 0x1f) == 0) { | |
2017 | return false; | |
2018 | } | |
2019 | if (sve_access_check(s)) { | |
2020 | unsigned vsz = vec_full_reg_size(s); | |
2021 | unsigned dofs = vec_full_reg_offset(s, a->rd); | |
2022 | unsigned esz, index; | |
2023 | ||
2024 | esz = ctz32(a->imm); | |
2025 | index = a->imm >> (esz + 1); | |
2026 | ||
2027 | if ((index << esz) < vsz) { | |
2028 | unsigned nofs = vec_reg_offset(s, a->rn, index, esz); | |
2029 | tcg_gen_gvec_dup_mem(esz, dofs, nofs, vsz, vsz); | |
2030 | } else { | |
2031 | tcg_gen_gvec_dup64i(dofs, vsz, vsz, 0); | |
2032 | } | |
2033 | } | |
2034 | return true; | |
2035 | } | |
2036 | ||
2037 | static void do_insr_i64(DisasContext *s, arg_rrr_esz *a, TCGv_i64 val) | |
2038 | { | |
2039 | typedef void gen_insr(TCGv_ptr, TCGv_ptr, TCGv_i64, TCGv_i32); | |
2040 | static gen_insr * const fns[4] = { | |
2041 | gen_helper_sve_insr_b, gen_helper_sve_insr_h, | |
2042 | gen_helper_sve_insr_s, gen_helper_sve_insr_d, | |
2043 | }; | |
2044 | unsigned vsz = vec_full_reg_size(s); | |
2045 | TCGv_i32 desc = tcg_const_i32(simd_desc(vsz, vsz, 0)); | |
2046 | TCGv_ptr t_zd = tcg_temp_new_ptr(); | |
2047 | TCGv_ptr t_zn = tcg_temp_new_ptr(); | |
2048 | ||
2049 | tcg_gen_addi_ptr(t_zd, cpu_env, vec_full_reg_offset(s, a->rd)); | |
2050 | tcg_gen_addi_ptr(t_zn, cpu_env, vec_full_reg_offset(s, a->rn)); | |
2051 | ||
2052 | fns[a->esz](t_zd, t_zn, val, desc); | |
2053 | ||
2054 | tcg_temp_free_ptr(t_zd); | |
2055 | tcg_temp_free_ptr(t_zn); | |
2056 | tcg_temp_free_i32(desc); | |
2057 | } | |
2058 | ||
2059 | static bool trans_INSR_f(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2060 | { | |
2061 | if (sve_access_check(s)) { | |
2062 | TCGv_i64 t = tcg_temp_new_i64(); | |
2063 | tcg_gen_ld_i64(t, cpu_env, vec_reg_offset(s, a->rm, 0, MO_64)); | |
2064 | do_insr_i64(s, a, t); | |
2065 | tcg_temp_free_i64(t); | |
2066 | } | |
2067 | return true; | |
2068 | } | |
2069 | ||
2070 | static bool trans_INSR_r(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2071 | { | |
2072 | if (sve_access_check(s)) { | |
2073 | do_insr_i64(s, a, cpu_reg(s, a->rm)); | |
2074 | } | |
2075 | return true; | |
2076 | } | |
2077 | ||
2078 | static bool trans_REV_v(DisasContext *s, arg_rr_esz *a, uint32_t insn) | |
2079 | { | |
2080 | static gen_helper_gvec_2 * const fns[4] = { | |
2081 | gen_helper_sve_rev_b, gen_helper_sve_rev_h, | |
2082 | gen_helper_sve_rev_s, gen_helper_sve_rev_d | |
2083 | }; | |
2084 | ||
2085 | if (sve_access_check(s)) { | |
2086 | unsigned vsz = vec_full_reg_size(s); | |
2087 | tcg_gen_gvec_2_ool(vec_full_reg_offset(s, a->rd), | |
2088 | vec_full_reg_offset(s, a->rn), | |
2089 | vsz, vsz, 0, fns[a->esz]); | |
2090 | } | |
2091 | return true; | |
2092 | } | |
2093 | ||
2094 | static bool trans_TBL(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2095 | { | |
2096 | static gen_helper_gvec_3 * const fns[4] = { | |
2097 | gen_helper_sve_tbl_b, gen_helper_sve_tbl_h, | |
2098 | gen_helper_sve_tbl_s, gen_helper_sve_tbl_d | |
2099 | }; | |
2100 | ||
2101 | if (sve_access_check(s)) { | |
2102 | unsigned vsz = vec_full_reg_size(s); | |
2103 | tcg_gen_gvec_3_ool(vec_full_reg_offset(s, a->rd), | |
2104 | vec_full_reg_offset(s, a->rn), | |
2105 | vec_full_reg_offset(s, a->rm), | |
2106 | vsz, vsz, 0, fns[a->esz]); | |
2107 | } | |
2108 | return true; | |
2109 | } | |
2110 | ||
2111 | static bool trans_UNPK(DisasContext *s, arg_UNPK *a, uint32_t insn) | |
2112 | { | |
2113 | static gen_helper_gvec_2 * const fns[4][2] = { | |
2114 | { NULL, NULL }, | |
2115 | { gen_helper_sve_sunpk_h, gen_helper_sve_uunpk_h }, | |
2116 | { gen_helper_sve_sunpk_s, gen_helper_sve_uunpk_s }, | |
2117 | { gen_helper_sve_sunpk_d, gen_helper_sve_uunpk_d }, | |
2118 | }; | |
2119 | ||
2120 | if (a->esz == 0) { | |
2121 | return false; | |
2122 | } | |
2123 | if (sve_access_check(s)) { | |
2124 | unsigned vsz = vec_full_reg_size(s); | |
2125 | tcg_gen_gvec_2_ool(vec_full_reg_offset(s, a->rd), | |
2126 | vec_full_reg_offset(s, a->rn) | |
2127 | + (a->h ? vsz / 2 : 0), | |
2128 | vsz, vsz, 0, fns[a->esz][a->u]); | |
2129 | } | |
2130 | return true; | |
2131 | } | |
2132 | ||
d731d8cb RH |
2133 | /* |
2134 | *** SVE Permute - Predicates Group | |
2135 | */ | |
2136 | ||
2137 | static bool do_perm_pred3(DisasContext *s, arg_rrr_esz *a, bool high_odd, | |
2138 | gen_helper_gvec_3 *fn) | |
2139 | { | |
2140 | if (!sve_access_check(s)) { | |
2141 | return true; | |
2142 | } | |
2143 | ||
2144 | unsigned vsz = pred_full_reg_size(s); | |
2145 | ||
2146 | /* Predicate sizes may be smaller and cannot use simd_desc. | |
2147 | We cannot round up, as we do elsewhere, because we need | |
2148 | the exact size for ZIP2 and REV. We retain the style for | |
2149 | the other helpers for consistency. */ | |
2150 | TCGv_ptr t_d = tcg_temp_new_ptr(); | |
2151 | TCGv_ptr t_n = tcg_temp_new_ptr(); | |
2152 | TCGv_ptr t_m = tcg_temp_new_ptr(); | |
2153 | TCGv_i32 t_desc; | |
2154 | int desc; | |
2155 | ||
2156 | desc = vsz - 2; | |
2157 | desc = deposit32(desc, SIMD_DATA_SHIFT, 2, a->esz); | |
2158 | desc = deposit32(desc, SIMD_DATA_SHIFT + 2, 2, high_odd); | |
2159 | ||
2160 | tcg_gen_addi_ptr(t_d, cpu_env, pred_full_reg_offset(s, a->rd)); | |
2161 | tcg_gen_addi_ptr(t_n, cpu_env, pred_full_reg_offset(s, a->rn)); | |
2162 | tcg_gen_addi_ptr(t_m, cpu_env, pred_full_reg_offset(s, a->rm)); | |
2163 | t_desc = tcg_const_i32(desc); | |
2164 | ||
2165 | fn(t_d, t_n, t_m, t_desc); | |
2166 | ||
2167 | tcg_temp_free_ptr(t_d); | |
2168 | tcg_temp_free_ptr(t_n); | |
2169 | tcg_temp_free_ptr(t_m); | |
2170 | tcg_temp_free_i32(t_desc); | |
2171 | return true; | |
2172 | } | |
2173 | ||
2174 | static bool do_perm_pred2(DisasContext *s, arg_rr_esz *a, bool high_odd, | |
2175 | gen_helper_gvec_2 *fn) | |
2176 | { | |
2177 | if (!sve_access_check(s)) { | |
2178 | return true; | |
2179 | } | |
2180 | ||
2181 | unsigned vsz = pred_full_reg_size(s); | |
2182 | TCGv_ptr t_d = tcg_temp_new_ptr(); | |
2183 | TCGv_ptr t_n = tcg_temp_new_ptr(); | |
2184 | TCGv_i32 t_desc; | |
2185 | int desc; | |
2186 | ||
2187 | tcg_gen_addi_ptr(t_d, cpu_env, pred_full_reg_offset(s, a->rd)); | |
2188 | tcg_gen_addi_ptr(t_n, cpu_env, pred_full_reg_offset(s, a->rn)); | |
2189 | ||
2190 | /* Predicate sizes may be smaller and cannot use simd_desc. | |
2191 | We cannot round up, as we do elsewhere, because we need | |
2192 | the exact size for ZIP2 and REV. We retain the style for | |
2193 | the other helpers for consistency. */ | |
2194 | ||
2195 | desc = vsz - 2; | |
2196 | desc = deposit32(desc, SIMD_DATA_SHIFT, 2, a->esz); | |
2197 | desc = deposit32(desc, SIMD_DATA_SHIFT + 2, 2, high_odd); | |
2198 | t_desc = tcg_const_i32(desc); | |
2199 | ||
2200 | fn(t_d, t_n, t_desc); | |
2201 | ||
2202 | tcg_temp_free_i32(t_desc); | |
2203 | tcg_temp_free_ptr(t_d); | |
2204 | tcg_temp_free_ptr(t_n); | |
2205 | return true; | |
2206 | } | |
2207 | ||
2208 | static bool trans_ZIP1_p(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2209 | { | |
2210 | return do_perm_pred3(s, a, 0, gen_helper_sve_zip_p); | |
2211 | } | |
2212 | ||
2213 | static bool trans_ZIP2_p(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2214 | { | |
2215 | return do_perm_pred3(s, a, 1, gen_helper_sve_zip_p); | |
2216 | } | |
2217 | ||
2218 | static bool trans_UZP1_p(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2219 | { | |
2220 | return do_perm_pred3(s, a, 0, gen_helper_sve_uzp_p); | |
2221 | } | |
2222 | ||
2223 | static bool trans_UZP2_p(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2224 | { | |
2225 | return do_perm_pred3(s, a, 1, gen_helper_sve_uzp_p); | |
2226 | } | |
2227 | ||
2228 | static bool trans_TRN1_p(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2229 | { | |
2230 | return do_perm_pred3(s, a, 0, gen_helper_sve_trn_p); | |
2231 | } | |
2232 | ||
2233 | static bool trans_TRN2_p(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2234 | { | |
2235 | return do_perm_pred3(s, a, 1, gen_helper_sve_trn_p); | |
2236 | } | |
2237 | ||
2238 | static bool trans_REV_p(DisasContext *s, arg_rr_esz *a, uint32_t insn) | |
2239 | { | |
2240 | return do_perm_pred2(s, a, 0, gen_helper_sve_rev_p); | |
2241 | } | |
2242 | ||
2243 | static bool trans_PUNPKLO(DisasContext *s, arg_PUNPKLO *a, uint32_t insn) | |
2244 | { | |
2245 | return do_perm_pred2(s, a, 0, gen_helper_sve_punpk_p); | |
2246 | } | |
2247 | ||
2248 | static bool trans_PUNPKHI(DisasContext *s, arg_PUNPKHI *a, uint32_t insn) | |
2249 | { | |
2250 | return do_perm_pred2(s, a, 1, gen_helper_sve_punpk_p); | |
2251 | } | |
2252 | ||
234b48e9 RH |
2253 | /* |
2254 | *** SVE Permute - Interleaving Group | |
2255 | */ | |
2256 | ||
2257 | static bool do_zip(DisasContext *s, arg_rrr_esz *a, bool high) | |
2258 | { | |
2259 | static gen_helper_gvec_3 * const fns[4] = { | |
2260 | gen_helper_sve_zip_b, gen_helper_sve_zip_h, | |
2261 | gen_helper_sve_zip_s, gen_helper_sve_zip_d, | |
2262 | }; | |
2263 | ||
2264 | if (sve_access_check(s)) { | |
2265 | unsigned vsz = vec_full_reg_size(s); | |
2266 | unsigned high_ofs = high ? vsz / 2 : 0; | |
2267 | tcg_gen_gvec_3_ool(vec_full_reg_offset(s, a->rd), | |
2268 | vec_full_reg_offset(s, a->rn) + high_ofs, | |
2269 | vec_full_reg_offset(s, a->rm) + high_ofs, | |
2270 | vsz, vsz, 0, fns[a->esz]); | |
2271 | } | |
2272 | return true; | |
2273 | } | |
2274 | ||
2275 | static bool do_zzz_data_ool(DisasContext *s, arg_rrr_esz *a, int data, | |
2276 | gen_helper_gvec_3 *fn) | |
2277 | { | |
2278 | if (sve_access_check(s)) { | |
2279 | unsigned vsz = vec_full_reg_size(s); | |
2280 | tcg_gen_gvec_3_ool(vec_full_reg_offset(s, a->rd), | |
2281 | vec_full_reg_offset(s, a->rn), | |
2282 | vec_full_reg_offset(s, a->rm), | |
2283 | vsz, vsz, data, fn); | |
2284 | } | |
2285 | return true; | |
2286 | } | |
2287 | ||
2288 | static bool trans_ZIP1_z(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2289 | { | |
2290 | return do_zip(s, a, false); | |
2291 | } | |
2292 | ||
2293 | static bool trans_ZIP2_z(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2294 | { | |
2295 | return do_zip(s, a, true); | |
2296 | } | |
2297 | ||
2298 | static gen_helper_gvec_3 * const uzp_fns[4] = { | |
2299 | gen_helper_sve_uzp_b, gen_helper_sve_uzp_h, | |
2300 | gen_helper_sve_uzp_s, gen_helper_sve_uzp_d, | |
2301 | }; | |
2302 | ||
2303 | static bool trans_UZP1_z(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2304 | { | |
2305 | return do_zzz_data_ool(s, a, 0, uzp_fns[a->esz]); | |
2306 | } | |
2307 | ||
2308 | static bool trans_UZP2_z(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2309 | { | |
2310 | return do_zzz_data_ool(s, a, 1 << a->esz, uzp_fns[a->esz]); | |
2311 | } | |
2312 | ||
2313 | static gen_helper_gvec_3 * const trn_fns[4] = { | |
2314 | gen_helper_sve_trn_b, gen_helper_sve_trn_h, | |
2315 | gen_helper_sve_trn_s, gen_helper_sve_trn_d, | |
2316 | }; | |
2317 | ||
2318 | static bool trans_TRN1_z(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2319 | { | |
2320 | return do_zzz_data_ool(s, a, 0, trn_fns[a->esz]); | |
2321 | } | |
2322 | ||
2323 | static bool trans_TRN2_z(DisasContext *s, arg_rrr_esz *a, uint32_t insn) | |
2324 | { | |
2325 | return do_zzz_data_ool(s, a, 1 << a->esz, trn_fns[a->esz]); | |
2326 | } | |
2327 | ||
3ca879ae RH |
2328 | /* |
2329 | *** SVE Permute Vector - Predicated Group | |
2330 | */ | |
2331 | ||
2332 | static bool trans_COMPACT(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2333 | { | |
2334 | static gen_helper_gvec_3 * const fns[4] = { | |
2335 | NULL, NULL, gen_helper_sve_compact_s, gen_helper_sve_compact_d | |
2336 | }; | |
2337 | return do_zpz_ool(s, a, fns[a->esz]); | |
2338 | } | |
2339 | ||
ef23cb72 RH |
2340 | /* Call the helper that computes the ARM LastActiveElement pseudocode |
2341 | * function, scaled by the element size. This includes the not found | |
2342 | * indication; e.g. not found for esz=3 is -8. | |
2343 | */ | |
2344 | static void find_last_active(DisasContext *s, TCGv_i32 ret, int esz, int pg) | |
2345 | { | |
2346 | /* Predicate sizes may be smaller and cannot use simd_desc. We cannot | |
2347 | * round up, as we do elsewhere, because we need the exact size. | |
2348 | */ | |
2349 | TCGv_ptr t_p = tcg_temp_new_ptr(); | |
2350 | TCGv_i32 t_desc; | |
2351 | unsigned vsz = pred_full_reg_size(s); | |
2352 | unsigned desc; | |
2353 | ||
2354 | desc = vsz - 2; | |
2355 | desc = deposit32(desc, SIMD_DATA_SHIFT, 2, esz); | |
2356 | ||
2357 | tcg_gen_addi_ptr(t_p, cpu_env, pred_full_reg_offset(s, pg)); | |
2358 | t_desc = tcg_const_i32(desc); | |
2359 | ||
2360 | gen_helper_sve_last_active_element(ret, t_p, t_desc); | |
2361 | ||
2362 | tcg_temp_free_i32(t_desc); | |
2363 | tcg_temp_free_ptr(t_p); | |
2364 | } | |
2365 | ||
2366 | /* Increment LAST to the offset of the next element in the vector, | |
2367 | * wrapping around to 0. | |
2368 | */ | |
2369 | static void incr_last_active(DisasContext *s, TCGv_i32 last, int esz) | |
2370 | { | |
2371 | unsigned vsz = vec_full_reg_size(s); | |
2372 | ||
2373 | tcg_gen_addi_i32(last, last, 1 << esz); | |
2374 | if (is_power_of_2(vsz)) { | |
2375 | tcg_gen_andi_i32(last, last, vsz - 1); | |
2376 | } else { | |
2377 | TCGv_i32 max = tcg_const_i32(vsz); | |
2378 | TCGv_i32 zero = tcg_const_i32(0); | |
2379 | tcg_gen_movcond_i32(TCG_COND_GEU, last, last, max, zero, last); | |
2380 | tcg_temp_free_i32(max); | |
2381 | tcg_temp_free_i32(zero); | |
2382 | } | |
2383 | } | |
2384 | ||
2385 | /* If LAST < 0, set LAST to the offset of the last element in the vector. */ | |
2386 | static void wrap_last_active(DisasContext *s, TCGv_i32 last, int esz) | |
2387 | { | |
2388 | unsigned vsz = vec_full_reg_size(s); | |
2389 | ||
2390 | if (is_power_of_2(vsz)) { | |
2391 | tcg_gen_andi_i32(last, last, vsz - 1); | |
2392 | } else { | |
2393 | TCGv_i32 max = tcg_const_i32(vsz - (1 << esz)); | |
2394 | TCGv_i32 zero = tcg_const_i32(0); | |
2395 | tcg_gen_movcond_i32(TCG_COND_LT, last, last, zero, max, last); | |
2396 | tcg_temp_free_i32(max); | |
2397 | tcg_temp_free_i32(zero); | |
2398 | } | |
2399 | } | |
2400 | ||
2401 | /* Load an unsigned element of ESZ from BASE+OFS. */ | |
2402 | static TCGv_i64 load_esz(TCGv_ptr base, int ofs, int esz) | |
2403 | { | |
2404 | TCGv_i64 r = tcg_temp_new_i64(); | |
2405 | ||
2406 | switch (esz) { | |
2407 | case 0: | |
2408 | tcg_gen_ld8u_i64(r, base, ofs); | |
2409 | break; | |
2410 | case 1: | |
2411 | tcg_gen_ld16u_i64(r, base, ofs); | |
2412 | break; | |
2413 | case 2: | |
2414 | tcg_gen_ld32u_i64(r, base, ofs); | |
2415 | break; | |
2416 | case 3: | |
2417 | tcg_gen_ld_i64(r, base, ofs); | |
2418 | break; | |
2419 | default: | |
2420 | g_assert_not_reached(); | |
2421 | } | |
2422 | return r; | |
2423 | } | |
2424 | ||
2425 | /* Load an unsigned element of ESZ from RM[LAST]. */ | |
2426 | static TCGv_i64 load_last_active(DisasContext *s, TCGv_i32 last, | |
2427 | int rm, int esz) | |
2428 | { | |
2429 | TCGv_ptr p = tcg_temp_new_ptr(); | |
2430 | TCGv_i64 r; | |
2431 | ||
2432 | /* Convert offset into vector into offset into ENV. | |
2433 | * The final adjustment for the vector register base | |
2434 | * is added via constant offset to the load. | |
2435 | */ | |
2436 | #ifdef HOST_WORDS_BIGENDIAN | |
2437 | /* Adjust for element ordering. See vec_reg_offset. */ | |
2438 | if (esz < 3) { | |
2439 | tcg_gen_xori_i32(last, last, 8 - (1 << esz)); | |
2440 | } | |
2441 | #endif | |
2442 | tcg_gen_ext_i32_ptr(p, last); | |
2443 | tcg_gen_add_ptr(p, p, cpu_env); | |
2444 | ||
2445 | r = load_esz(p, vec_full_reg_offset(s, rm), esz); | |
2446 | tcg_temp_free_ptr(p); | |
2447 | ||
2448 | return r; | |
2449 | } | |
2450 | ||
2451 | /* Compute CLAST for a Zreg. */ | |
2452 | static bool do_clast_vector(DisasContext *s, arg_rprr_esz *a, bool before) | |
2453 | { | |
2454 | TCGv_i32 last; | |
2455 | TCGLabel *over; | |
2456 | TCGv_i64 ele; | |
2457 | unsigned vsz, esz = a->esz; | |
2458 | ||
2459 | if (!sve_access_check(s)) { | |
2460 | return true; | |
2461 | } | |
2462 | ||
2463 | last = tcg_temp_local_new_i32(); | |
2464 | over = gen_new_label(); | |
2465 | ||
2466 | find_last_active(s, last, esz, a->pg); | |
2467 | ||
2468 | /* There is of course no movcond for a 2048-bit vector, | |
2469 | * so we must branch over the actual store. | |
2470 | */ | |
2471 | tcg_gen_brcondi_i32(TCG_COND_LT, last, 0, over); | |
2472 | ||
2473 | if (!before) { | |
2474 | incr_last_active(s, last, esz); | |
2475 | } | |
2476 | ||
2477 | ele = load_last_active(s, last, a->rm, esz); | |
2478 | tcg_temp_free_i32(last); | |
2479 | ||
2480 | vsz = vec_full_reg_size(s); | |
2481 | tcg_gen_gvec_dup_i64(esz, vec_full_reg_offset(s, a->rd), vsz, vsz, ele); | |
2482 | tcg_temp_free_i64(ele); | |
2483 | ||
2484 | /* If this insn used MOVPRFX, we may need a second move. */ | |
2485 | if (a->rd != a->rn) { | |
2486 | TCGLabel *done = gen_new_label(); | |
2487 | tcg_gen_br(done); | |
2488 | ||
2489 | gen_set_label(over); | |
2490 | do_mov_z(s, a->rd, a->rn); | |
2491 | ||
2492 | gen_set_label(done); | |
2493 | } else { | |
2494 | gen_set_label(over); | |
2495 | } | |
2496 | return true; | |
2497 | } | |
2498 | ||
2499 | static bool trans_CLASTA_z(DisasContext *s, arg_rprr_esz *a, uint32_t insn) | |
2500 | { | |
2501 | return do_clast_vector(s, a, false); | |
2502 | } | |
2503 | ||
2504 | static bool trans_CLASTB_z(DisasContext *s, arg_rprr_esz *a, uint32_t insn) | |
2505 | { | |
2506 | return do_clast_vector(s, a, true); | |
2507 | } | |
2508 | ||
2509 | /* Compute CLAST for a scalar. */ | |
2510 | static void do_clast_scalar(DisasContext *s, int esz, int pg, int rm, | |
2511 | bool before, TCGv_i64 reg_val) | |
2512 | { | |
2513 | TCGv_i32 last = tcg_temp_new_i32(); | |
2514 | TCGv_i64 ele, cmp, zero; | |
2515 | ||
2516 | find_last_active(s, last, esz, pg); | |
2517 | ||
2518 | /* Extend the original value of last prior to incrementing. */ | |
2519 | cmp = tcg_temp_new_i64(); | |
2520 | tcg_gen_ext_i32_i64(cmp, last); | |
2521 | ||
2522 | if (!before) { | |
2523 | incr_last_active(s, last, esz); | |
2524 | } | |
2525 | ||
2526 | /* The conceit here is that while last < 0 indicates not found, after | |
2527 | * adjusting for cpu_env->vfp.zregs[rm], it is still a valid address | |
2528 | * from which we can load garbage. We then discard the garbage with | |
2529 | * a conditional move. | |
2530 | */ | |
2531 | ele = load_last_active(s, last, rm, esz); | |
2532 | tcg_temp_free_i32(last); | |
2533 | ||
2534 | zero = tcg_const_i64(0); | |
2535 | tcg_gen_movcond_i64(TCG_COND_GE, reg_val, cmp, zero, ele, reg_val); | |
2536 | ||
2537 | tcg_temp_free_i64(zero); | |
2538 | tcg_temp_free_i64(cmp); | |
2539 | tcg_temp_free_i64(ele); | |
2540 | } | |
2541 | ||
2542 | /* Compute CLAST for a Vreg. */ | |
2543 | static bool do_clast_fp(DisasContext *s, arg_rpr_esz *a, bool before) | |
2544 | { | |
2545 | if (sve_access_check(s)) { | |
2546 | int esz = a->esz; | |
2547 | int ofs = vec_reg_offset(s, a->rd, 0, esz); | |
2548 | TCGv_i64 reg = load_esz(cpu_env, ofs, esz); | |
2549 | ||
2550 | do_clast_scalar(s, esz, a->pg, a->rn, before, reg); | |
2551 | write_fp_dreg(s, a->rd, reg); | |
2552 | tcg_temp_free_i64(reg); | |
2553 | } | |
2554 | return true; | |
2555 | } | |
2556 | ||
2557 | static bool trans_CLASTA_v(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2558 | { | |
2559 | return do_clast_fp(s, a, false); | |
2560 | } | |
2561 | ||
2562 | static bool trans_CLASTB_v(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2563 | { | |
2564 | return do_clast_fp(s, a, true); | |
2565 | } | |
2566 | ||
2567 | /* Compute CLAST for a Xreg. */ | |
2568 | static bool do_clast_general(DisasContext *s, arg_rpr_esz *a, bool before) | |
2569 | { | |
2570 | TCGv_i64 reg; | |
2571 | ||
2572 | if (!sve_access_check(s)) { | |
2573 | return true; | |
2574 | } | |
2575 | ||
2576 | reg = cpu_reg(s, a->rd); | |
2577 | switch (a->esz) { | |
2578 | case 0: | |
2579 | tcg_gen_ext8u_i64(reg, reg); | |
2580 | break; | |
2581 | case 1: | |
2582 | tcg_gen_ext16u_i64(reg, reg); | |
2583 | break; | |
2584 | case 2: | |
2585 | tcg_gen_ext32u_i64(reg, reg); | |
2586 | break; | |
2587 | case 3: | |
2588 | break; | |
2589 | default: | |
2590 | g_assert_not_reached(); | |
2591 | } | |
2592 | ||
2593 | do_clast_scalar(s, a->esz, a->pg, a->rn, before, reg); | |
2594 | return true; | |
2595 | } | |
2596 | ||
2597 | static bool trans_CLASTA_r(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2598 | { | |
2599 | return do_clast_general(s, a, false); | |
2600 | } | |
2601 | ||
2602 | static bool trans_CLASTB_r(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2603 | { | |
2604 | return do_clast_general(s, a, true); | |
2605 | } | |
2606 | ||
2607 | /* Compute LAST for a scalar. */ | |
2608 | static TCGv_i64 do_last_scalar(DisasContext *s, int esz, | |
2609 | int pg, int rm, bool before) | |
2610 | { | |
2611 | TCGv_i32 last = tcg_temp_new_i32(); | |
2612 | TCGv_i64 ret; | |
2613 | ||
2614 | find_last_active(s, last, esz, pg); | |
2615 | if (before) { | |
2616 | wrap_last_active(s, last, esz); | |
2617 | } else { | |
2618 | incr_last_active(s, last, esz); | |
2619 | } | |
2620 | ||
2621 | ret = load_last_active(s, last, rm, esz); | |
2622 | tcg_temp_free_i32(last); | |
2623 | return ret; | |
2624 | } | |
2625 | ||
2626 | /* Compute LAST for a Vreg. */ | |
2627 | static bool do_last_fp(DisasContext *s, arg_rpr_esz *a, bool before) | |
2628 | { | |
2629 | if (sve_access_check(s)) { | |
2630 | TCGv_i64 val = do_last_scalar(s, a->esz, a->pg, a->rn, before); | |
2631 | write_fp_dreg(s, a->rd, val); | |
2632 | tcg_temp_free_i64(val); | |
2633 | } | |
2634 | return true; | |
2635 | } | |
2636 | ||
2637 | static bool trans_LASTA_v(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2638 | { | |
2639 | return do_last_fp(s, a, false); | |
2640 | } | |
2641 | ||
2642 | static bool trans_LASTB_v(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2643 | { | |
2644 | return do_last_fp(s, a, true); | |
2645 | } | |
2646 | ||
2647 | /* Compute LAST for a Xreg. */ | |
2648 | static bool do_last_general(DisasContext *s, arg_rpr_esz *a, bool before) | |
2649 | { | |
2650 | if (sve_access_check(s)) { | |
2651 | TCGv_i64 val = do_last_scalar(s, a->esz, a->pg, a->rn, before); | |
2652 | tcg_gen_mov_i64(cpu_reg(s, a->rd), val); | |
2653 | tcg_temp_free_i64(val); | |
2654 | } | |
2655 | return true; | |
2656 | } | |
2657 | ||
2658 | static bool trans_LASTA_r(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2659 | { | |
2660 | return do_last_general(s, a, false); | |
2661 | } | |
2662 | ||
2663 | static bool trans_LASTB_r(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2664 | { | |
2665 | return do_last_general(s, a, true); | |
2666 | } | |
2667 | ||
792a5578 RH |
2668 | static bool trans_CPY_m_r(DisasContext *s, arg_rpr_esz *a, uint32_t insn) |
2669 | { | |
2670 | if (sve_access_check(s)) { | |
2671 | do_cpy_m(s, a->esz, a->rd, a->rd, a->pg, cpu_reg_sp(s, a->rn)); | |
2672 | } | |
2673 | return true; | |
2674 | } | |
2675 | ||
2676 | static bool trans_CPY_m_v(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2677 | { | |
2678 | if (sve_access_check(s)) { | |
2679 | int ofs = vec_reg_offset(s, a->rn, 0, a->esz); | |
2680 | TCGv_i64 t = load_esz(cpu_env, ofs, a->esz); | |
2681 | do_cpy_m(s, a->esz, a->rd, a->rd, a->pg, t); | |
2682 | tcg_temp_free_i64(t); | |
2683 | } | |
2684 | return true; | |
2685 | } | |
2686 | ||
dae8fb90 RH |
2687 | static bool trans_REVB(DisasContext *s, arg_rpr_esz *a, uint32_t insn) |
2688 | { | |
2689 | static gen_helper_gvec_3 * const fns[4] = { | |
2690 | NULL, | |
2691 | gen_helper_sve_revb_h, | |
2692 | gen_helper_sve_revb_s, | |
2693 | gen_helper_sve_revb_d, | |
2694 | }; | |
2695 | return do_zpz_ool(s, a, fns[a->esz]); | |
2696 | } | |
2697 | ||
2698 | static bool trans_REVH(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2699 | { | |
2700 | static gen_helper_gvec_3 * const fns[4] = { | |
2701 | NULL, | |
2702 | NULL, | |
2703 | gen_helper_sve_revh_s, | |
2704 | gen_helper_sve_revh_d, | |
2705 | }; | |
2706 | return do_zpz_ool(s, a, fns[a->esz]); | |
2707 | } | |
2708 | ||
2709 | static bool trans_REVW(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2710 | { | |
2711 | return do_zpz_ool(s, a, a->esz == 3 ? gen_helper_sve_revw_d : NULL); | |
2712 | } | |
2713 | ||
2714 | static bool trans_RBIT(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
2715 | { | |
2716 | static gen_helper_gvec_3 * const fns[4] = { | |
2717 | gen_helper_sve_rbit_b, | |
2718 | gen_helper_sve_rbit_h, | |
2719 | gen_helper_sve_rbit_s, | |
2720 | gen_helper_sve_rbit_d, | |
2721 | }; | |
2722 | return do_zpz_ool(s, a, fns[a->esz]); | |
2723 | } | |
2724 | ||
b48ff240 RH |
2725 | static bool trans_SPLICE(DisasContext *s, arg_rprr_esz *a, uint32_t insn) |
2726 | { | |
2727 | if (sve_access_check(s)) { | |
2728 | unsigned vsz = vec_full_reg_size(s); | |
2729 | tcg_gen_gvec_4_ool(vec_full_reg_offset(s, a->rd), | |
2730 | vec_full_reg_offset(s, a->rn), | |
2731 | vec_full_reg_offset(s, a->rm), | |
2732 | pred_full_reg_offset(s, a->pg), | |
2733 | vsz, vsz, a->esz, gen_helper_sve_splice); | |
2734 | } | |
2735 | return true; | |
2736 | } | |
2737 | ||
757f9cff RH |
2738 | /* |
2739 | *** SVE Integer Compare - Vectors Group | |
2740 | */ | |
2741 | ||
2742 | static bool do_ppzz_flags(DisasContext *s, arg_rprr_esz *a, | |
2743 | gen_helper_gvec_flags_4 *gen_fn) | |
2744 | { | |
2745 | TCGv_ptr pd, zn, zm, pg; | |
2746 | unsigned vsz; | |
2747 | TCGv_i32 t; | |
2748 | ||
2749 | if (gen_fn == NULL) { | |
2750 | return false; | |
2751 | } | |
2752 | if (!sve_access_check(s)) { | |
2753 | return true; | |
2754 | } | |
2755 | ||
2756 | vsz = vec_full_reg_size(s); | |
2757 | t = tcg_const_i32(simd_desc(vsz, vsz, 0)); | |
2758 | pd = tcg_temp_new_ptr(); | |
2759 | zn = tcg_temp_new_ptr(); | |
2760 | zm = tcg_temp_new_ptr(); | |
2761 | pg = tcg_temp_new_ptr(); | |
2762 | ||
2763 | tcg_gen_addi_ptr(pd, cpu_env, pred_full_reg_offset(s, a->rd)); | |
2764 | tcg_gen_addi_ptr(zn, cpu_env, vec_full_reg_offset(s, a->rn)); | |
2765 | tcg_gen_addi_ptr(zm, cpu_env, vec_full_reg_offset(s, a->rm)); | |
2766 | tcg_gen_addi_ptr(pg, cpu_env, pred_full_reg_offset(s, a->pg)); | |
2767 | ||
2768 | gen_fn(t, pd, zn, zm, pg, t); | |
2769 | ||
2770 | tcg_temp_free_ptr(pd); | |
2771 | tcg_temp_free_ptr(zn); | |
2772 | tcg_temp_free_ptr(zm); | |
2773 | tcg_temp_free_ptr(pg); | |
2774 | ||
2775 | do_pred_flags(t); | |
2776 | ||
2777 | tcg_temp_free_i32(t); | |
2778 | return true; | |
2779 | } | |
2780 | ||
2781 | #define DO_PPZZ(NAME, name) \ | |
2782 | static bool trans_##NAME##_ppzz(DisasContext *s, arg_rprr_esz *a, \ | |
2783 | uint32_t insn) \ | |
2784 | { \ | |
2785 | static gen_helper_gvec_flags_4 * const fns[4] = { \ | |
2786 | gen_helper_sve_##name##_ppzz_b, gen_helper_sve_##name##_ppzz_h, \ | |
2787 | gen_helper_sve_##name##_ppzz_s, gen_helper_sve_##name##_ppzz_d, \ | |
2788 | }; \ | |
2789 | return do_ppzz_flags(s, a, fns[a->esz]); \ | |
2790 | } | |
2791 | ||
2792 | DO_PPZZ(CMPEQ, cmpeq) | |
2793 | DO_PPZZ(CMPNE, cmpne) | |
2794 | DO_PPZZ(CMPGT, cmpgt) | |
2795 | DO_PPZZ(CMPGE, cmpge) | |
2796 | DO_PPZZ(CMPHI, cmphi) | |
2797 | DO_PPZZ(CMPHS, cmphs) | |
2798 | ||
2799 | #undef DO_PPZZ | |
2800 | ||
2801 | #define DO_PPZW(NAME, name) \ | |
2802 | static bool trans_##NAME##_ppzw(DisasContext *s, arg_rprr_esz *a, \ | |
2803 | uint32_t insn) \ | |
2804 | { \ | |
2805 | static gen_helper_gvec_flags_4 * const fns[4] = { \ | |
2806 | gen_helper_sve_##name##_ppzw_b, gen_helper_sve_##name##_ppzw_h, \ | |
2807 | gen_helper_sve_##name##_ppzw_s, NULL \ | |
2808 | }; \ | |
2809 | return do_ppzz_flags(s, a, fns[a->esz]); \ | |
2810 | } | |
2811 | ||
2812 | DO_PPZW(CMPEQ, cmpeq) | |
2813 | DO_PPZW(CMPNE, cmpne) | |
2814 | DO_PPZW(CMPGT, cmpgt) | |
2815 | DO_PPZW(CMPGE, cmpge) | |
2816 | DO_PPZW(CMPHI, cmphi) | |
2817 | DO_PPZW(CMPHS, cmphs) | |
2818 | DO_PPZW(CMPLT, cmplt) | |
2819 | DO_PPZW(CMPLE, cmple) | |
2820 | DO_PPZW(CMPLO, cmplo) | |
2821 | DO_PPZW(CMPLS, cmpls) | |
2822 | ||
2823 | #undef DO_PPZW | |
2824 | ||
38cadeba RH |
2825 | /* |
2826 | *** SVE Integer Compare - Immediate Groups | |
2827 | */ | |
2828 | ||
2829 | static bool do_ppzi_flags(DisasContext *s, arg_rpri_esz *a, | |
2830 | gen_helper_gvec_flags_3 *gen_fn) | |
2831 | { | |
2832 | TCGv_ptr pd, zn, pg; | |
2833 | unsigned vsz; | |
2834 | TCGv_i32 t; | |
2835 | ||
2836 | if (gen_fn == NULL) { | |
2837 | return false; | |
2838 | } | |
2839 | if (!sve_access_check(s)) { | |
2840 | return true; | |
2841 | } | |
2842 | ||
2843 | vsz = vec_full_reg_size(s); | |
2844 | t = tcg_const_i32(simd_desc(vsz, vsz, a->imm)); | |
2845 | pd = tcg_temp_new_ptr(); | |
2846 | zn = tcg_temp_new_ptr(); | |
2847 | pg = tcg_temp_new_ptr(); | |
2848 | ||
2849 | tcg_gen_addi_ptr(pd, cpu_env, pred_full_reg_offset(s, a->rd)); | |
2850 | tcg_gen_addi_ptr(zn, cpu_env, vec_full_reg_offset(s, a->rn)); | |
2851 | tcg_gen_addi_ptr(pg, cpu_env, pred_full_reg_offset(s, a->pg)); | |
2852 | ||
2853 | gen_fn(t, pd, zn, pg, t); | |
2854 | ||
2855 | tcg_temp_free_ptr(pd); | |
2856 | tcg_temp_free_ptr(zn); | |
2857 | tcg_temp_free_ptr(pg); | |
2858 | ||
2859 | do_pred_flags(t); | |
2860 | ||
2861 | tcg_temp_free_i32(t); | |
2862 | return true; | |
2863 | } | |
2864 | ||
2865 | #define DO_PPZI(NAME, name) \ | |
2866 | static bool trans_##NAME##_ppzi(DisasContext *s, arg_rpri_esz *a, \ | |
2867 | uint32_t insn) \ | |
2868 | { \ | |
2869 | static gen_helper_gvec_flags_3 * const fns[4] = { \ | |
2870 | gen_helper_sve_##name##_ppzi_b, gen_helper_sve_##name##_ppzi_h, \ | |
2871 | gen_helper_sve_##name##_ppzi_s, gen_helper_sve_##name##_ppzi_d, \ | |
2872 | }; \ | |
2873 | return do_ppzi_flags(s, a, fns[a->esz]); \ | |
2874 | } | |
2875 | ||
2876 | DO_PPZI(CMPEQ, cmpeq) | |
2877 | DO_PPZI(CMPNE, cmpne) | |
2878 | DO_PPZI(CMPGT, cmpgt) | |
2879 | DO_PPZI(CMPGE, cmpge) | |
2880 | DO_PPZI(CMPHI, cmphi) | |
2881 | DO_PPZI(CMPHS, cmphs) | |
2882 | DO_PPZI(CMPLT, cmplt) | |
2883 | DO_PPZI(CMPLE, cmple) | |
2884 | DO_PPZI(CMPLO, cmplo) | |
2885 | DO_PPZI(CMPLS, cmpls) | |
2886 | ||
2887 | #undef DO_PPZI | |
2888 | ||
35da316f RH |
2889 | /* |
2890 | *** SVE Partition Break Group | |
2891 | */ | |
2892 | ||
2893 | static bool do_brk3(DisasContext *s, arg_rprr_s *a, | |
2894 | gen_helper_gvec_4 *fn, gen_helper_gvec_flags_4 *fn_s) | |
2895 | { | |
2896 | if (!sve_access_check(s)) { | |
2897 | return true; | |
2898 | } | |
2899 | ||
2900 | unsigned vsz = pred_full_reg_size(s); | |
2901 | ||
2902 | /* Predicate sizes may be smaller and cannot use simd_desc. */ | |
2903 | TCGv_ptr d = tcg_temp_new_ptr(); | |
2904 | TCGv_ptr n = tcg_temp_new_ptr(); | |
2905 | TCGv_ptr m = tcg_temp_new_ptr(); | |
2906 | TCGv_ptr g = tcg_temp_new_ptr(); | |
2907 | TCGv_i32 t = tcg_const_i32(vsz - 2); | |
2908 | ||
2909 | tcg_gen_addi_ptr(d, cpu_env, pred_full_reg_offset(s, a->rd)); | |
2910 | tcg_gen_addi_ptr(n, cpu_env, pred_full_reg_offset(s, a->rn)); | |
2911 | tcg_gen_addi_ptr(m, cpu_env, pred_full_reg_offset(s, a->rm)); | |
2912 | tcg_gen_addi_ptr(g, cpu_env, pred_full_reg_offset(s, a->pg)); | |
2913 | ||
2914 | if (a->s) { | |
2915 | fn_s(t, d, n, m, g, t); | |
2916 | do_pred_flags(t); | |
2917 | } else { | |
2918 | fn(d, n, m, g, t); | |
2919 | } | |
2920 | tcg_temp_free_ptr(d); | |
2921 | tcg_temp_free_ptr(n); | |
2922 | tcg_temp_free_ptr(m); | |
2923 | tcg_temp_free_ptr(g); | |
2924 | tcg_temp_free_i32(t); | |
2925 | return true; | |
2926 | } | |
2927 | ||
2928 | static bool do_brk2(DisasContext *s, arg_rpr_s *a, | |
2929 | gen_helper_gvec_3 *fn, gen_helper_gvec_flags_3 *fn_s) | |
2930 | { | |
2931 | if (!sve_access_check(s)) { | |
2932 | return true; | |
2933 | } | |
2934 | ||
2935 | unsigned vsz = pred_full_reg_size(s); | |
2936 | ||
2937 | /* Predicate sizes may be smaller and cannot use simd_desc. */ | |
2938 | TCGv_ptr d = tcg_temp_new_ptr(); | |
2939 | TCGv_ptr n = tcg_temp_new_ptr(); | |
2940 | TCGv_ptr g = tcg_temp_new_ptr(); | |
2941 | TCGv_i32 t = tcg_const_i32(vsz - 2); | |
2942 | ||
2943 | tcg_gen_addi_ptr(d, cpu_env, pred_full_reg_offset(s, a->rd)); | |
2944 | tcg_gen_addi_ptr(n, cpu_env, pred_full_reg_offset(s, a->rn)); | |
2945 | tcg_gen_addi_ptr(g, cpu_env, pred_full_reg_offset(s, a->pg)); | |
2946 | ||
2947 | if (a->s) { | |
2948 | fn_s(t, d, n, g, t); | |
2949 | do_pred_flags(t); | |
2950 | } else { | |
2951 | fn(d, n, g, t); | |
2952 | } | |
2953 | tcg_temp_free_ptr(d); | |
2954 | tcg_temp_free_ptr(n); | |
2955 | tcg_temp_free_ptr(g); | |
2956 | tcg_temp_free_i32(t); | |
2957 | return true; | |
2958 | } | |
2959 | ||
2960 | static bool trans_BRKPA(DisasContext *s, arg_rprr_s *a, uint32_t insn) | |
2961 | { | |
2962 | return do_brk3(s, a, gen_helper_sve_brkpa, gen_helper_sve_brkpas); | |
2963 | } | |
2964 | ||
2965 | static bool trans_BRKPB(DisasContext *s, arg_rprr_s *a, uint32_t insn) | |
2966 | { | |
2967 | return do_brk3(s, a, gen_helper_sve_brkpb, gen_helper_sve_brkpbs); | |
2968 | } | |
2969 | ||
2970 | static bool trans_BRKA_m(DisasContext *s, arg_rpr_s *a, uint32_t insn) | |
2971 | { | |
2972 | return do_brk2(s, a, gen_helper_sve_brka_m, gen_helper_sve_brkas_m); | |
2973 | } | |
2974 | ||
2975 | static bool trans_BRKB_m(DisasContext *s, arg_rpr_s *a, uint32_t insn) | |
2976 | { | |
2977 | return do_brk2(s, a, gen_helper_sve_brkb_m, gen_helper_sve_brkbs_m); | |
2978 | } | |
2979 | ||
2980 | static bool trans_BRKA_z(DisasContext *s, arg_rpr_s *a, uint32_t insn) | |
2981 | { | |
2982 | return do_brk2(s, a, gen_helper_sve_brka_z, gen_helper_sve_brkas_z); | |
2983 | } | |
2984 | ||
2985 | static bool trans_BRKB_z(DisasContext *s, arg_rpr_s *a, uint32_t insn) | |
2986 | { | |
2987 | return do_brk2(s, a, gen_helper_sve_brkb_z, gen_helper_sve_brkbs_z); | |
2988 | } | |
2989 | ||
2990 | static bool trans_BRKN(DisasContext *s, arg_rpr_s *a, uint32_t insn) | |
2991 | { | |
2992 | return do_brk2(s, a, gen_helper_sve_brkn, gen_helper_sve_brkns); | |
2993 | } | |
2994 | ||
9ee3a611 RH |
2995 | /* |
2996 | *** SVE Predicate Count Group | |
2997 | */ | |
2998 | ||
2999 | static void do_cntp(DisasContext *s, TCGv_i64 val, int esz, int pn, int pg) | |
3000 | { | |
3001 | unsigned psz = pred_full_reg_size(s); | |
3002 | ||
3003 | if (psz <= 8) { | |
3004 | uint64_t psz_mask; | |
3005 | ||
3006 | tcg_gen_ld_i64(val, cpu_env, pred_full_reg_offset(s, pn)); | |
3007 | if (pn != pg) { | |
3008 | TCGv_i64 g = tcg_temp_new_i64(); | |
3009 | tcg_gen_ld_i64(g, cpu_env, pred_full_reg_offset(s, pg)); | |
3010 | tcg_gen_and_i64(val, val, g); | |
3011 | tcg_temp_free_i64(g); | |
3012 | } | |
3013 | ||
3014 | /* Reduce the pred_esz_masks value simply to reduce the | |
3015 | * size of the code generated here. | |
3016 | */ | |
3017 | psz_mask = MAKE_64BIT_MASK(0, psz * 8); | |
3018 | tcg_gen_andi_i64(val, val, pred_esz_masks[esz] & psz_mask); | |
3019 | ||
3020 | tcg_gen_ctpop_i64(val, val); | |
3021 | } else { | |
3022 | TCGv_ptr t_pn = tcg_temp_new_ptr(); | |
3023 | TCGv_ptr t_pg = tcg_temp_new_ptr(); | |
3024 | unsigned desc; | |
3025 | TCGv_i32 t_desc; | |
3026 | ||
3027 | desc = psz - 2; | |
3028 | desc = deposit32(desc, SIMD_DATA_SHIFT, 2, esz); | |
3029 | ||
3030 | tcg_gen_addi_ptr(t_pn, cpu_env, pred_full_reg_offset(s, pn)); | |
3031 | tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, pg)); | |
3032 | t_desc = tcg_const_i32(desc); | |
3033 | ||
3034 | gen_helper_sve_cntp(val, t_pn, t_pg, t_desc); | |
3035 | tcg_temp_free_ptr(t_pn); | |
3036 | tcg_temp_free_ptr(t_pg); | |
3037 | tcg_temp_free_i32(t_desc); | |
3038 | } | |
3039 | } | |
3040 | ||
3041 | static bool trans_CNTP(DisasContext *s, arg_CNTP *a, uint32_t insn) | |
3042 | { | |
3043 | if (sve_access_check(s)) { | |
3044 | do_cntp(s, cpu_reg(s, a->rd), a->esz, a->rn, a->pg); | |
3045 | } | |
3046 | return true; | |
3047 | } | |
3048 | ||
3049 | static bool trans_INCDECP_r(DisasContext *s, arg_incdec_pred *a, | |
3050 | uint32_t insn) | |
3051 | { | |
3052 | if (sve_access_check(s)) { | |
3053 | TCGv_i64 reg = cpu_reg(s, a->rd); | |
3054 | TCGv_i64 val = tcg_temp_new_i64(); | |
3055 | ||
3056 | do_cntp(s, val, a->esz, a->pg, a->pg); | |
3057 | if (a->d) { | |
3058 | tcg_gen_sub_i64(reg, reg, val); | |
3059 | } else { | |
3060 | tcg_gen_add_i64(reg, reg, val); | |
3061 | } | |
3062 | tcg_temp_free_i64(val); | |
3063 | } | |
3064 | return true; | |
3065 | } | |
3066 | ||
3067 | static bool trans_INCDECP_z(DisasContext *s, arg_incdec2_pred *a, | |
3068 | uint32_t insn) | |
3069 | { | |
3070 | if (a->esz == 0) { | |
3071 | return false; | |
3072 | } | |
3073 | if (sve_access_check(s)) { | |
3074 | unsigned vsz = vec_full_reg_size(s); | |
3075 | TCGv_i64 val = tcg_temp_new_i64(); | |
3076 | GVecGen2sFn *gvec_fn = a->d ? tcg_gen_gvec_subs : tcg_gen_gvec_adds; | |
3077 | ||
3078 | do_cntp(s, val, a->esz, a->pg, a->pg); | |
3079 | gvec_fn(a->esz, vec_full_reg_offset(s, a->rd), | |
3080 | vec_full_reg_offset(s, a->rn), val, vsz, vsz); | |
3081 | } | |
3082 | return true; | |
3083 | } | |
3084 | ||
3085 | static bool trans_SINCDECP_r_32(DisasContext *s, arg_incdec_pred *a, | |
3086 | uint32_t insn) | |
3087 | { | |
3088 | if (sve_access_check(s)) { | |
3089 | TCGv_i64 reg = cpu_reg(s, a->rd); | |
3090 | TCGv_i64 val = tcg_temp_new_i64(); | |
3091 | ||
3092 | do_cntp(s, val, a->esz, a->pg, a->pg); | |
3093 | do_sat_addsub_32(reg, val, a->u, a->d); | |
3094 | } | |
3095 | return true; | |
3096 | } | |
3097 | ||
3098 | static bool trans_SINCDECP_r_64(DisasContext *s, arg_incdec_pred *a, | |
3099 | uint32_t insn) | |
3100 | { | |
3101 | if (sve_access_check(s)) { | |
3102 | TCGv_i64 reg = cpu_reg(s, a->rd); | |
3103 | TCGv_i64 val = tcg_temp_new_i64(); | |
3104 | ||
3105 | do_cntp(s, val, a->esz, a->pg, a->pg); | |
3106 | do_sat_addsub_64(reg, val, a->u, a->d); | |
3107 | } | |
3108 | return true; | |
3109 | } | |
3110 | ||
3111 | static bool trans_SINCDECP_z(DisasContext *s, arg_incdec2_pred *a, | |
3112 | uint32_t insn) | |
3113 | { | |
3114 | if (a->esz == 0) { | |
3115 | return false; | |
3116 | } | |
3117 | if (sve_access_check(s)) { | |
3118 | TCGv_i64 val = tcg_temp_new_i64(); | |
3119 | do_cntp(s, val, a->esz, a->pg, a->pg); | |
3120 | do_sat_addsub_vec(s, a->esz, a->rd, a->rn, val, a->u, a->d); | |
3121 | } | |
3122 | return true; | |
3123 | } | |
3124 | ||
caf1cefc RH |
3125 | /* |
3126 | *** SVE Integer Compare Scalars Group | |
3127 | */ | |
3128 | ||
3129 | static bool trans_CTERM(DisasContext *s, arg_CTERM *a, uint32_t insn) | |
3130 | { | |
3131 | if (!sve_access_check(s)) { | |
3132 | return true; | |
3133 | } | |
3134 | ||
3135 | TCGCond cond = (a->ne ? TCG_COND_NE : TCG_COND_EQ); | |
3136 | TCGv_i64 rn = read_cpu_reg(s, a->rn, a->sf); | |
3137 | TCGv_i64 rm = read_cpu_reg(s, a->rm, a->sf); | |
3138 | TCGv_i64 cmp = tcg_temp_new_i64(); | |
3139 | ||
3140 | tcg_gen_setcond_i64(cond, cmp, rn, rm); | |
3141 | tcg_gen_extrl_i64_i32(cpu_NF, cmp); | |
3142 | tcg_temp_free_i64(cmp); | |
3143 | ||
3144 | /* VF = !NF & !CF. */ | |
3145 | tcg_gen_xori_i32(cpu_VF, cpu_NF, 1); | |
3146 | tcg_gen_andc_i32(cpu_VF, cpu_VF, cpu_CF); | |
3147 | ||
3148 | /* Both NF and VF actually look at bit 31. */ | |
3149 | tcg_gen_neg_i32(cpu_NF, cpu_NF); | |
3150 | tcg_gen_neg_i32(cpu_VF, cpu_VF); | |
3151 | return true; | |
3152 | } | |
3153 | ||
3154 | static bool trans_WHILE(DisasContext *s, arg_WHILE *a, uint32_t insn) | |
3155 | { | |
3156 | if (!sve_access_check(s)) { | |
3157 | return true; | |
3158 | } | |
3159 | ||
3160 | TCGv_i64 op0 = read_cpu_reg(s, a->rn, 1); | |
3161 | TCGv_i64 op1 = read_cpu_reg(s, a->rm, 1); | |
3162 | TCGv_i64 t0 = tcg_temp_new_i64(); | |
3163 | TCGv_i64 t1 = tcg_temp_new_i64(); | |
3164 | TCGv_i32 t2, t3; | |
3165 | TCGv_ptr ptr; | |
3166 | unsigned desc, vsz = vec_full_reg_size(s); | |
3167 | TCGCond cond; | |
3168 | ||
3169 | if (!a->sf) { | |
3170 | if (a->u) { | |
3171 | tcg_gen_ext32u_i64(op0, op0); | |
3172 | tcg_gen_ext32u_i64(op1, op1); | |
3173 | } else { | |
3174 | tcg_gen_ext32s_i64(op0, op0); | |
3175 | tcg_gen_ext32s_i64(op1, op1); | |
3176 | } | |
3177 | } | |
3178 | ||
3179 | /* For the helper, compress the different conditions into a computation | |
3180 | * of how many iterations for which the condition is true. | |
3181 | * | |
3182 | * This is slightly complicated by 0 <= UINT64_MAX, which is nominally | |
3183 | * 2**64 iterations, overflowing to 0. Of course, predicate registers | |
3184 | * aren't that large, so any value >= predicate size is sufficient. | |
3185 | */ | |
3186 | tcg_gen_sub_i64(t0, op1, op0); | |
3187 | ||
3188 | /* t0 = MIN(op1 - op0, vsz). */ | |
3189 | tcg_gen_movi_i64(t1, vsz); | |
3190 | tcg_gen_umin_i64(t0, t0, t1); | |
3191 | if (a->eq) { | |
3192 | /* Equality means one more iteration. */ | |
3193 | tcg_gen_addi_i64(t0, t0, 1); | |
3194 | } | |
3195 | ||
3196 | /* t0 = (condition true ? t0 : 0). */ | |
3197 | cond = (a->u | |
3198 | ? (a->eq ? TCG_COND_LEU : TCG_COND_LTU) | |
3199 | : (a->eq ? TCG_COND_LE : TCG_COND_LT)); | |
3200 | tcg_gen_movi_i64(t1, 0); | |
3201 | tcg_gen_movcond_i64(cond, t0, op0, op1, t0, t1); | |
3202 | ||
3203 | t2 = tcg_temp_new_i32(); | |
3204 | tcg_gen_extrl_i64_i32(t2, t0); | |
3205 | tcg_temp_free_i64(t0); | |
3206 | tcg_temp_free_i64(t1); | |
3207 | ||
3208 | desc = (vsz / 8) - 2; | |
3209 | desc = deposit32(desc, SIMD_DATA_SHIFT, 2, a->esz); | |
3210 | t3 = tcg_const_i32(desc); | |
3211 | ||
3212 | ptr = tcg_temp_new_ptr(); | |
3213 | tcg_gen_addi_ptr(ptr, cpu_env, pred_full_reg_offset(s, a->rd)); | |
3214 | ||
3215 | gen_helper_sve_while(t2, ptr, t2, t3); | |
3216 | do_pred_flags(t2); | |
3217 | ||
3218 | tcg_temp_free_ptr(ptr); | |
3219 | tcg_temp_free_i32(t2); | |
3220 | tcg_temp_free_i32(t3); | |
3221 | return true; | |
3222 | } | |
3223 | ||
ed491961 RH |
3224 | /* |
3225 | *** SVE Integer Wide Immediate - Unpredicated Group | |
3226 | */ | |
3227 | ||
3228 | static bool trans_FDUP(DisasContext *s, arg_FDUP *a, uint32_t insn) | |
3229 | { | |
3230 | if (a->esz == 0) { | |
3231 | return false; | |
3232 | } | |
3233 | if (sve_access_check(s)) { | |
3234 | unsigned vsz = vec_full_reg_size(s); | |
3235 | int dofs = vec_full_reg_offset(s, a->rd); | |
3236 | uint64_t imm; | |
3237 | ||
3238 | /* Decode the VFP immediate. */ | |
3239 | imm = vfp_expand_imm(a->esz, a->imm); | |
3240 | imm = dup_const(a->esz, imm); | |
3241 | ||
3242 | tcg_gen_gvec_dup64i(dofs, vsz, vsz, imm); | |
3243 | } | |
3244 | return true; | |
3245 | } | |
3246 | ||
3247 | static bool trans_DUP_i(DisasContext *s, arg_DUP_i *a, uint32_t insn) | |
3248 | { | |
3249 | if (a->esz == 0 && extract32(insn, 13, 1)) { | |
3250 | return false; | |
3251 | } | |
3252 | if (sve_access_check(s)) { | |
3253 | unsigned vsz = vec_full_reg_size(s); | |
3254 | int dofs = vec_full_reg_offset(s, a->rd); | |
3255 | ||
3256 | tcg_gen_gvec_dup64i(dofs, vsz, vsz, dup_const(a->esz, a->imm)); | |
3257 | } | |
3258 | return true; | |
3259 | } | |
3260 | ||
6e6a157d RH |
3261 | static bool trans_ADD_zzi(DisasContext *s, arg_rri_esz *a, uint32_t insn) |
3262 | { | |
3263 | if (a->esz == 0 && extract32(insn, 13, 1)) { | |
3264 | return false; | |
3265 | } | |
3266 | if (sve_access_check(s)) { | |
3267 | unsigned vsz = vec_full_reg_size(s); | |
3268 | tcg_gen_gvec_addi(a->esz, vec_full_reg_offset(s, a->rd), | |
3269 | vec_full_reg_offset(s, a->rn), a->imm, vsz, vsz); | |
3270 | } | |
3271 | return true; | |
3272 | } | |
3273 | ||
3274 | static bool trans_SUB_zzi(DisasContext *s, arg_rri_esz *a, uint32_t insn) | |
3275 | { | |
3276 | a->imm = -a->imm; | |
3277 | return trans_ADD_zzi(s, a, insn); | |
3278 | } | |
3279 | ||
3280 | static bool trans_SUBR_zzi(DisasContext *s, arg_rri_esz *a, uint32_t insn) | |
3281 | { | |
3282 | static const GVecGen2s op[4] = { | |
3283 | { .fni8 = tcg_gen_vec_sub8_i64, | |
3284 | .fniv = tcg_gen_sub_vec, | |
3285 | .fno = gen_helper_sve_subri_b, | |
3286 | .opc = INDEX_op_sub_vec, | |
3287 | .vece = MO_8, | |
3288 | .scalar_first = true }, | |
3289 | { .fni8 = tcg_gen_vec_sub16_i64, | |
3290 | .fniv = tcg_gen_sub_vec, | |
3291 | .fno = gen_helper_sve_subri_h, | |
3292 | .opc = INDEX_op_sub_vec, | |
3293 | .vece = MO_16, | |
3294 | .scalar_first = true }, | |
3295 | { .fni4 = tcg_gen_sub_i32, | |
3296 | .fniv = tcg_gen_sub_vec, | |
3297 | .fno = gen_helper_sve_subri_s, | |
3298 | .opc = INDEX_op_sub_vec, | |
3299 | .vece = MO_32, | |
3300 | .scalar_first = true }, | |
3301 | { .fni8 = tcg_gen_sub_i64, | |
3302 | .fniv = tcg_gen_sub_vec, | |
3303 | .fno = gen_helper_sve_subri_d, | |
3304 | .opc = INDEX_op_sub_vec, | |
3305 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
3306 | .vece = MO_64, | |
3307 | .scalar_first = true } | |
3308 | }; | |
3309 | ||
3310 | if (a->esz == 0 && extract32(insn, 13, 1)) { | |
3311 | return false; | |
3312 | } | |
3313 | if (sve_access_check(s)) { | |
3314 | unsigned vsz = vec_full_reg_size(s); | |
3315 | TCGv_i64 c = tcg_const_i64(a->imm); | |
3316 | tcg_gen_gvec_2s(vec_full_reg_offset(s, a->rd), | |
3317 | vec_full_reg_offset(s, a->rn), | |
3318 | vsz, vsz, c, &op[a->esz]); | |
3319 | tcg_temp_free_i64(c); | |
3320 | } | |
3321 | return true; | |
3322 | } | |
3323 | ||
3324 | static bool trans_MUL_zzi(DisasContext *s, arg_rri_esz *a, uint32_t insn) | |
3325 | { | |
3326 | if (sve_access_check(s)) { | |
3327 | unsigned vsz = vec_full_reg_size(s); | |
3328 | tcg_gen_gvec_muli(a->esz, vec_full_reg_offset(s, a->rd), | |
3329 | vec_full_reg_offset(s, a->rn), a->imm, vsz, vsz); | |
3330 | } | |
3331 | return true; | |
3332 | } | |
3333 | ||
3334 | static bool do_zzi_sat(DisasContext *s, arg_rri_esz *a, uint32_t insn, | |
3335 | bool u, bool d) | |
3336 | { | |
3337 | if (a->esz == 0 && extract32(insn, 13, 1)) { | |
3338 | return false; | |
3339 | } | |
3340 | if (sve_access_check(s)) { | |
3341 | TCGv_i64 val = tcg_const_i64(a->imm); | |
3342 | do_sat_addsub_vec(s, a->esz, a->rd, a->rn, val, u, d); | |
3343 | tcg_temp_free_i64(val); | |
3344 | } | |
3345 | return true; | |
3346 | } | |
3347 | ||
3348 | static bool trans_SQADD_zzi(DisasContext *s, arg_rri_esz *a, uint32_t insn) | |
3349 | { | |
3350 | return do_zzi_sat(s, a, insn, false, false); | |
3351 | } | |
3352 | ||
3353 | static bool trans_UQADD_zzi(DisasContext *s, arg_rri_esz *a, uint32_t insn) | |
3354 | { | |
3355 | return do_zzi_sat(s, a, insn, true, false); | |
3356 | } | |
3357 | ||
3358 | static bool trans_SQSUB_zzi(DisasContext *s, arg_rri_esz *a, uint32_t insn) | |
3359 | { | |
3360 | return do_zzi_sat(s, a, insn, false, true); | |
3361 | } | |
3362 | ||
3363 | static bool trans_UQSUB_zzi(DisasContext *s, arg_rri_esz *a, uint32_t insn) | |
3364 | { | |
3365 | return do_zzi_sat(s, a, insn, true, true); | |
3366 | } | |
3367 | ||
3368 | static bool do_zzi_ool(DisasContext *s, arg_rri_esz *a, gen_helper_gvec_2i *fn) | |
3369 | { | |
3370 | if (sve_access_check(s)) { | |
3371 | unsigned vsz = vec_full_reg_size(s); | |
3372 | TCGv_i64 c = tcg_const_i64(a->imm); | |
3373 | ||
3374 | tcg_gen_gvec_2i_ool(vec_full_reg_offset(s, a->rd), | |
3375 | vec_full_reg_offset(s, a->rn), | |
3376 | c, vsz, vsz, 0, fn); | |
3377 | tcg_temp_free_i64(c); | |
3378 | } | |
3379 | return true; | |
3380 | } | |
3381 | ||
3382 | #define DO_ZZI(NAME, name) \ | |
3383 | static bool trans_##NAME##_zzi(DisasContext *s, arg_rri_esz *a, \ | |
3384 | uint32_t insn) \ | |
3385 | { \ | |
3386 | static gen_helper_gvec_2i * const fns[4] = { \ | |
3387 | gen_helper_sve_##name##i_b, gen_helper_sve_##name##i_h, \ | |
3388 | gen_helper_sve_##name##i_s, gen_helper_sve_##name##i_d, \ | |
3389 | }; \ | |
3390 | return do_zzi_ool(s, a, fns[a->esz]); \ | |
3391 | } | |
3392 | ||
3393 | DO_ZZI(SMAX, smax) | |
3394 | DO_ZZI(UMAX, umax) | |
3395 | DO_ZZI(SMIN, smin) | |
3396 | DO_ZZI(UMIN, umin) | |
3397 | ||
3398 | #undef DO_ZZI | |
3399 | ||
7f9ddf64 RH |
3400 | /* |
3401 | *** SVE Floating Point Accumulating Reduction Group | |
3402 | */ | |
3403 | ||
3404 | static bool trans_FADDA(DisasContext *s, arg_rprr_esz *a, uint32_t insn) | |
3405 | { | |
3406 | typedef void fadda_fn(TCGv_i64, TCGv_i64, TCGv_ptr, | |
3407 | TCGv_ptr, TCGv_ptr, TCGv_i32); | |
3408 | static fadda_fn * const fns[3] = { | |
3409 | gen_helper_sve_fadda_h, | |
3410 | gen_helper_sve_fadda_s, | |
3411 | gen_helper_sve_fadda_d, | |
3412 | }; | |
3413 | unsigned vsz = vec_full_reg_size(s); | |
3414 | TCGv_ptr t_rm, t_pg, t_fpst; | |
3415 | TCGv_i64 t_val; | |
3416 | TCGv_i32 t_desc; | |
3417 | ||
3418 | if (a->esz == 0) { | |
3419 | return false; | |
3420 | } | |
3421 | if (!sve_access_check(s)) { | |
3422 | return true; | |
3423 | } | |
3424 | ||
3425 | t_val = load_esz(cpu_env, vec_reg_offset(s, a->rn, 0, a->esz), a->esz); | |
3426 | t_rm = tcg_temp_new_ptr(); | |
3427 | t_pg = tcg_temp_new_ptr(); | |
3428 | tcg_gen_addi_ptr(t_rm, cpu_env, vec_full_reg_offset(s, a->rm)); | |
3429 | tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, a->pg)); | |
3430 | t_fpst = get_fpstatus_ptr(a->esz == MO_16); | |
3431 | t_desc = tcg_const_i32(simd_desc(vsz, vsz, 0)); | |
3432 | ||
3433 | fns[a->esz - 1](t_val, t_val, t_rm, t_pg, t_fpst, t_desc); | |
3434 | ||
3435 | tcg_temp_free_i32(t_desc); | |
3436 | tcg_temp_free_ptr(t_fpst); | |
3437 | tcg_temp_free_ptr(t_pg); | |
3438 | tcg_temp_free_ptr(t_rm); | |
3439 | ||
3440 | write_fp_dreg(s, a->rd, t_val); | |
3441 | tcg_temp_free_i64(t_val); | |
3442 | return true; | |
3443 | } | |
3444 | ||
29b80469 RH |
3445 | /* |
3446 | *** SVE Floating Point Arithmetic - Unpredicated Group | |
3447 | */ | |
3448 | ||
3449 | static bool do_zzz_fp(DisasContext *s, arg_rrr_esz *a, | |
3450 | gen_helper_gvec_3_ptr *fn) | |
3451 | { | |
3452 | if (fn == NULL) { | |
3453 | return false; | |
3454 | } | |
3455 | if (sve_access_check(s)) { | |
3456 | unsigned vsz = vec_full_reg_size(s); | |
3457 | TCGv_ptr status = get_fpstatus_ptr(a->esz == MO_16); | |
3458 | tcg_gen_gvec_3_ptr(vec_full_reg_offset(s, a->rd), | |
3459 | vec_full_reg_offset(s, a->rn), | |
3460 | vec_full_reg_offset(s, a->rm), | |
3461 | status, vsz, vsz, 0, fn); | |
3462 | tcg_temp_free_ptr(status); | |
3463 | } | |
3464 | return true; | |
3465 | } | |
3466 | ||
3467 | ||
3468 | #define DO_FP3(NAME, name) \ | |
3469 | static bool trans_##NAME(DisasContext *s, arg_rrr_esz *a, uint32_t insn) \ | |
3470 | { \ | |
3471 | static gen_helper_gvec_3_ptr * const fns[4] = { \ | |
3472 | NULL, gen_helper_gvec_##name##_h, \ | |
3473 | gen_helper_gvec_##name##_s, gen_helper_gvec_##name##_d \ | |
3474 | }; \ | |
3475 | return do_zzz_fp(s, a, fns[a->esz]); \ | |
3476 | } | |
3477 | ||
3478 | DO_FP3(FADD_zzz, fadd) | |
3479 | DO_FP3(FSUB_zzz, fsub) | |
3480 | DO_FP3(FMUL_zzz, fmul) | |
3481 | DO_FP3(FTSMUL, ftsmul) | |
3482 | DO_FP3(FRECPS, recps) | |
3483 | DO_FP3(FRSQRTS, rsqrts) | |
3484 | ||
3485 | #undef DO_FP3 | |
3486 | ||
ec3b87c2 RH |
3487 | /* |
3488 | *** SVE Floating Point Arithmetic - Predicated Group | |
3489 | */ | |
3490 | ||
3491 | static bool do_zpzz_fp(DisasContext *s, arg_rprr_esz *a, | |
3492 | gen_helper_gvec_4_ptr *fn) | |
3493 | { | |
3494 | if (fn == NULL) { | |
3495 | return false; | |
3496 | } | |
3497 | if (sve_access_check(s)) { | |
3498 | unsigned vsz = vec_full_reg_size(s); | |
3499 | TCGv_ptr status = get_fpstatus_ptr(a->esz == MO_16); | |
3500 | tcg_gen_gvec_4_ptr(vec_full_reg_offset(s, a->rd), | |
3501 | vec_full_reg_offset(s, a->rn), | |
3502 | vec_full_reg_offset(s, a->rm), | |
3503 | pred_full_reg_offset(s, a->pg), | |
3504 | status, vsz, vsz, 0, fn); | |
3505 | tcg_temp_free_ptr(status); | |
3506 | } | |
3507 | return true; | |
3508 | } | |
3509 | ||
3510 | #define DO_FP3(NAME, name) \ | |
3511 | static bool trans_##NAME(DisasContext *s, arg_rprr_esz *a, uint32_t insn) \ | |
3512 | { \ | |
3513 | static gen_helper_gvec_4_ptr * const fns[4] = { \ | |
3514 | NULL, gen_helper_sve_##name##_h, \ | |
3515 | gen_helper_sve_##name##_s, gen_helper_sve_##name##_d \ | |
3516 | }; \ | |
3517 | return do_zpzz_fp(s, a, fns[a->esz]); \ | |
3518 | } | |
3519 | ||
3520 | DO_FP3(FADD_zpzz, fadd) | |
3521 | DO_FP3(FSUB_zpzz, fsub) | |
3522 | DO_FP3(FMUL_zpzz, fmul) | |
3523 | DO_FP3(FMIN_zpzz, fmin) | |
3524 | DO_FP3(FMAX_zpzz, fmax) | |
3525 | DO_FP3(FMINNM_zpzz, fminnum) | |
3526 | DO_FP3(FMAXNM_zpzz, fmaxnum) | |
3527 | DO_FP3(FABD, fabd) | |
3528 | DO_FP3(FSCALE, fscalbn) | |
3529 | DO_FP3(FDIV, fdiv) | |
3530 | DO_FP3(FMULX, fmulx) | |
3531 | ||
3532 | #undef DO_FP3 | |
8092c6a3 | 3533 | |
6ceabaad RH |
3534 | typedef void gen_helper_sve_fmla(TCGv_env, TCGv_ptr, TCGv_i32); |
3535 | ||
3536 | static bool do_fmla(DisasContext *s, arg_rprrr_esz *a, gen_helper_sve_fmla *fn) | |
3537 | { | |
3538 | if (fn == NULL) { | |
3539 | return false; | |
3540 | } | |
3541 | if (!sve_access_check(s)) { | |
3542 | return true; | |
3543 | } | |
3544 | ||
3545 | unsigned vsz = vec_full_reg_size(s); | |
3546 | unsigned desc; | |
3547 | TCGv_i32 t_desc; | |
3548 | TCGv_ptr pg = tcg_temp_new_ptr(); | |
3549 | ||
3550 | /* We would need 7 operands to pass these arguments "properly". | |
3551 | * So we encode all the register numbers into the descriptor. | |
3552 | */ | |
3553 | desc = deposit32(a->rd, 5, 5, a->rn); | |
3554 | desc = deposit32(desc, 10, 5, a->rm); | |
3555 | desc = deposit32(desc, 15, 5, a->ra); | |
3556 | desc = simd_desc(vsz, vsz, desc); | |
3557 | ||
3558 | t_desc = tcg_const_i32(desc); | |
3559 | tcg_gen_addi_ptr(pg, cpu_env, pred_full_reg_offset(s, a->pg)); | |
3560 | fn(cpu_env, pg, t_desc); | |
3561 | tcg_temp_free_i32(t_desc); | |
3562 | tcg_temp_free_ptr(pg); | |
3563 | return true; | |
3564 | } | |
3565 | ||
3566 | #define DO_FMLA(NAME, name) \ | |
3567 | static bool trans_##NAME(DisasContext *s, arg_rprrr_esz *a, uint32_t insn) \ | |
3568 | { \ | |
3569 | static gen_helper_sve_fmla * const fns[4] = { \ | |
3570 | NULL, gen_helper_sve_##name##_h, \ | |
3571 | gen_helper_sve_##name##_s, gen_helper_sve_##name##_d \ | |
3572 | }; \ | |
3573 | return do_fmla(s, a, fns[a->esz]); \ | |
3574 | } | |
3575 | ||
3576 | DO_FMLA(FMLA_zpzzz, fmla_zpzzz) | |
3577 | DO_FMLA(FMLS_zpzzz, fmls_zpzzz) | |
3578 | DO_FMLA(FNMLA_zpzzz, fnmla_zpzzz) | |
3579 | DO_FMLA(FNMLS_zpzzz, fnmls_zpzzz) | |
3580 | ||
3581 | #undef DO_FMLA | |
3582 | ||
8092c6a3 RH |
3583 | /* |
3584 | *** SVE Floating Point Unary Operations Predicated Group | |
3585 | */ | |
3586 | ||
3587 | static bool do_zpz_ptr(DisasContext *s, int rd, int rn, int pg, | |
3588 | bool is_fp16, gen_helper_gvec_3_ptr *fn) | |
3589 | { | |
3590 | if (sve_access_check(s)) { | |
3591 | unsigned vsz = vec_full_reg_size(s); | |
3592 | TCGv_ptr status = get_fpstatus_ptr(is_fp16); | |
3593 | tcg_gen_gvec_3_ptr(vec_full_reg_offset(s, rd), | |
3594 | vec_full_reg_offset(s, rn), | |
3595 | pred_full_reg_offset(s, pg), | |
3596 | status, vsz, vsz, 0, fn); | |
3597 | tcg_temp_free_ptr(status); | |
3598 | } | |
3599 | return true; | |
3600 | } | |
3601 | ||
3602 | static bool trans_SCVTF_hh(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3603 | { | |
3604 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, true, gen_helper_sve_scvt_hh); | |
3605 | } | |
3606 | ||
3607 | static bool trans_SCVTF_sh(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3608 | { | |
3609 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, true, gen_helper_sve_scvt_sh); | |
3610 | } | |
3611 | ||
3612 | static bool trans_SCVTF_dh(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3613 | { | |
3614 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, true, gen_helper_sve_scvt_dh); | |
3615 | } | |
3616 | ||
3617 | static bool trans_SCVTF_ss(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3618 | { | |
3619 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, false, gen_helper_sve_scvt_ss); | |
3620 | } | |
3621 | ||
3622 | static bool trans_SCVTF_ds(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3623 | { | |
3624 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, false, gen_helper_sve_scvt_ds); | |
3625 | } | |
3626 | ||
3627 | static bool trans_SCVTF_sd(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3628 | { | |
3629 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, false, gen_helper_sve_scvt_sd); | |
3630 | } | |
3631 | ||
3632 | static bool trans_SCVTF_dd(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3633 | { | |
3634 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, false, gen_helper_sve_scvt_dd); | |
3635 | } | |
3636 | ||
3637 | static bool trans_UCVTF_hh(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3638 | { | |
3639 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, true, gen_helper_sve_ucvt_hh); | |
3640 | } | |
3641 | ||
3642 | static bool trans_UCVTF_sh(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3643 | { | |
3644 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, true, gen_helper_sve_ucvt_sh); | |
3645 | } | |
3646 | ||
3647 | static bool trans_UCVTF_dh(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3648 | { | |
3649 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, true, gen_helper_sve_ucvt_dh); | |
3650 | } | |
3651 | ||
3652 | static bool trans_UCVTF_ss(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3653 | { | |
3654 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, false, gen_helper_sve_ucvt_ss); | |
3655 | } | |
3656 | ||
3657 | static bool trans_UCVTF_ds(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3658 | { | |
3659 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, false, gen_helper_sve_ucvt_ds); | |
3660 | } | |
3661 | ||
3662 | static bool trans_UCVTF_sd(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3663 | { | |
3664 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, false, gen_helper_sve_ucvt_sd); | |
3665 | } | |
3666 | ||
3667 | static bool trans_UCVTF_dd(DisasContext *s, arg_rpr_esz *a, uint32_t insn) | |
3668 | { | |
3669 | return do_zpz_ptr(s, a->rd, a->rn, a->pg, false, gen_helper_sve_ucvt_dd); | |
3670 | } | |
3671 | ||
d1822297 RH |
3672 | /* |
3673 | *** SVE Memory - 32-bit Gather and Unsized Contiguous Group | |
3674 | */ | |
3675 | ||
3676 | /* Subroutine loading a vector register at VOFS of LEN bytes. | |
3677 | * The load should begin at the address Rn + IMM. | |
3678 | */ | |
3679 | ||
3680 | static void do_ldr(DisasContext *s, uint32_t vofs, uint32_t len, | |
3681 | int rn, int imm) | |
3682 | { | |
3683 | uint32_t len_align = QEMU_ALIGN_DOWN(len, 8); | |
3684 | uint32_t len_remain = len % 8; | |
3685 | uint32_t nparts = len / 8 + ctpop8(len_remain); | |
3686 | int midx = get_mem_index(s); | |
3687 | TCGv_i64 addr, t0, t1; | |
3688 | ||
3689 | addr = tcg_temp_new_i64(); | |
3690 | t0 = tcg_temp_new_i64(); | |
3691 | ||
3692 | /* Note that unpredicated load/store of vector/predicate registers | |
3693 | * are defined as a stream of bytes, which equates to little-endian | |
3694 | * operations on larger quantities. There is no nice way to force | |
3695 | * a little-endian load for aarch64_be-linux-user out of line. | |
3696 | * | |
3697 | * Attempt to keep code expansion to a minimum by limiting the | |
3698 | * amount of unrolling done. | |
3699 | */ | |
3700 | if (nparts <= 4) { | |
3701 | int i; | |
3702 | ||
3703 | for (i = 0; i < len_align; i += 8) { | |
3704 | tcg_gen_addi_i64(addr, cpu_reg_sp(s, rn), imm + i); | |
3705 | tcg_gen_qemu_ld_i64(t0, addr, midx, MO_LEQ); | |
3706 | tcg_gen_st_i64(t0, cpu_env, vofs + i); | |
3707 | } | |
3708 | } else { | |
3709 | TCGLabel *loop = gen_new_label(); | |
3710 | TCGv_ptr tp, i = tcg_const_local_ptr(0); | |
3711 | ||
3712 | gen_set_label(loop); | |
3713 | ||
3714 | /* Minimize the number of local temps that must be re-read from | |
3715 | * the stack each iteration. Instead, re-compute values other | |
3716 | * than the loop counter. | |
3717 | */ | |
3718 | tp = tcg_temp_new_ptr(); | |
3719 | tcg_gen_addi_ptr(tp, i, imm); | |
3720 | tcg_gen_extu_ptr_i64(addr, tp); | |
3721 | tcg_gen_add_i64(addr, addr, cpu_reg_sp(s, rn)); | |
3722 | ||
3723 | tcg_gen_qemu_ld_i64(t0, addr, midx, MO_LEQ); | |
3724 | ||
3725 | tcg_gen_add_ptr(tp, cpu_env, i); | |
3726 | tcg_gen_addi_ptr(i, i, 8); | |
3727 | tcg_gen_st_i64(t0, tp, vofs); | |
3728 | tcg_temp_free_ptr(tp); | |
3729 | ||
3730 | tcg_gen_brcondi_ptr(TCG_COND_LTU, i, len_align, loop); | |
3731 | tcg_temp_free_ptr(i); | |
3732 | } | |
3733 | ||
3734 | /* Predicate register loads can be any multiple of 2. | |
3735 | * Note that we still store the entire 64-bit unit into cpu_env. | |
3736 | */ | |
3737 | if (len_remain) { | |
3738 | tcg_gen_addi_i64(addr, cpu_reg_sp(s, rn), imm + len_align); | |
3739 | ||
3740 | switch (len_remain) { | |
3741 | case 2: | |
3742 | case 4: | |
3743 | case 8: | |
3744 | tcg_gen_qemu_ld_i64(t0, addr, midx, MO_LE | ctz32(len_remain)); | |
3745 | break; | |
3746 | ||
3747 | case 6: | |
3748 | t1 = tcg_temp_new_i64(); | |
3749 | tcg_gen_qemu_ld_i64(t0, addr, midx, MO_LEUL); | |
3750 | tcg_gen_addi_i64(addr, addr, 4); | |
3751 | tcg_gen_qemu_ld_i64(t1, addr, midx, MO_LEUW); | |
3752 | tcg_gen_deposit_i64(t0, t0, t1, 32, 32); | |
3753 | tcg_temp_free_i64(t1); | |
3754 | break; | |
3755 | ||
3756 | default: | |
3757 | g_assert_not_reached(); | |
3758 | } | |
3759 | tcg_gen_st_i64(t0, cpu_env, vofs + len_align); | |
3760 | } | |
3761 | tcg_temp_free_i64(addr); | |
3762 | tcg_temp_free_i64(t0); | |
3763 | } | |
3764 | ||
3765 | static bool trans_LDR_zri(DisasContext *s, arg_rri *a, uint32_t insn) | |
3766 | { | |
3767 | if (sve_access_check(s)) { | |
3768 | int size = vec_full_reg_size(s); | |
3769 | int off = vec_full_reg_offset(s, a->rd); | |
3770 | do_ldr(s, off, size, a->rn, a->imm * size); | |
3771 | } | |
3772 | return true; | |
3773 | } | |
3774 | ||
3775 | static bool trans_LDR_pri(DisasContext *s, arg_rri *a, uint32_t insn) | |
3776 | { | |
3777 | if (sve_access_check(s)) { | |
3778 | int size = pred_full_reg_size(s); | |
3779 | int off = pred_full_reg_offset(s, a->rd); | |
3780 | do_ldr(s, off, size, a->rn, a->imm * size); | |
3781 | } | |
3782 | return true; | |
3783 | } | |
c4e7c493 RH |
3784 | |
3785 | /* | |
3786 | *** SVE Memory - Contiguous Load Group | |
3787 | */ | |
3788 | ||
3789 | /* The memory mode of the dtype. */ | |
3790 | static const TCGMemOp dtype_mop[16] = { | |
3791 | MO_UB, MO_UB, MO_UB, MO_UB, | |
3792 | MO_SL, MO_UW, MO_UW, MO_UW, | |
3793 | MO_SW, MO_SW, MO_UL, MO_UL, | |
3794 | MO_SB, MO_SB, MO_SB, MO_Q | |
3795 | }; | |
3796 | ||
3797 | #define dtype_msz(x) (dtype_mop[x] & MO_SIZE) | |
3798 | ||
3799 | /* The vector element size of dtype. */ | |
3800 | static const uint8_t dtype_esz[16] = { | |
3801 | 0, 1, 2, 3, | |
3802 | 3, 1, 2, 3, | |
3803 | 3, 2, 2, 3, | |
3804 | 3, 2, 1, 3 | |
3805 | }; | |
3806 | ||
3807 | static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr, | |
3808 | gen_helper_gvec_mem *fn) | |
3809 | { | |
3810 | unsigned vsz = vec_full_reg_size(s); | |
3811 | TCGv_ptr t_pg; | |
3812 | TCGv_i32 desc; | |
3813 | ||
3814 | /* For e.g. LD4, there are not enough arguments to pass all 4 | |
3815 | * registers as pointers, so encode the regno into the data field. | |
3816 | * For consistency, do this even for LD1. | |
3817 | */ | |
3818 | desc = tcg_const_i32(simd_desc(vsz, vsz, zt)); | |
3819 | t_pg = tcg_temp_new_ptr(); | |
3820 | ||
3821 | tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, pg)); | |
3822 | fn(cpu_env, t_pg, addr, desc); | |
3823 | ||
3824 | tcg_temp_free_ptr(t_pg); | |
3825 | tcg_temp_free_i32(desc); | |
3826 | } | |
3827 | ||
3828 | static void do_ld_zpa(DisasContext *s, int zt, int pg, | |
3829 | TCGv_i64 addr, int dtype, int nreg) | |
3830 | { | |
3831 | static gen_helper_gvec_mem * const fns[16][4] = { | |
3832 | { gen_helper_sve_ld1bb_r, gen_helper_sve_ld2bb_r, | |
3833 | gen_helper_sve_ld3bb_r, gen_helper_sve_ld4bb_r }, | |
3834 | { gen_helper_sve_ld1bhu_r, NULL, NULL, NULL }, | |
3835 | { gen_helper_sve_ld1bsu_r, NULL, NULL, NULL }, | |
3836 | { gen_helper_sve_ld1bdu_r, NULL, NULL, NULL }, | |
3837 | ||
3838 | { gen_helper_sve_ld1sds_r, NULL, NULL, NULL }, | |
3839 | { gen_helper_sve_ld1hh_r, gen_helper_sve_ld2hh_r, | |
3840 | gen_helper_sve_ld3hh_r, gen_helper_sve_ld4hh_r }, | |
3841 | { gen_helper_sve_ld1hsu_r, NULL, NULL, NULL }, | |
3842 | { gen_helper_sve_ld1hdu_r, NULL, NULL, NULL }, | |
3843 | ||
3844 | { gen_helper_sve_ld1hds_r, NULL, NULL, NULL }, | |
3845 | { gen_helper_sve_ld1hss_r, NULL, NULL, NULL }, | |
3846 | { gen_helper_sve_ld1ss_r, gen_helper_sve_ld2ss_r, | |
3847 | gen_helper_sve_ld3ss_r, gen_helper_sve_ld4ss_r }, | |
3848 | { gen_helper_sve_ld1sdu_r, NULL, NULL, NULL }, | |
3849 | ||
3850 | { gen_helper_sve_ld1bds_r, NULL, NULL, NULL }, | |
3851 | { gen_helper_sve_ld1bss_r, NULL, NULL, NULL }, | |
3852 | { gen_helper_sve_ld1bhs_r, NULL, NULL, NULL }, | |
3853 | { gen_helper_sve_ld1dd_r, gen_helper_sve_ld2dd_r, | |
3854 | gen_helper_sve_ld3dd_r, gen_helper_sve_ld4dd_r }, | |
3855 | }; | |
3856 | gen_helper_gvec_mem *fn = fns[dtype][nreg]; | |
3857 | ||
3858 | /* While there are holes in the table, they are not | |
3859 | * accessible via the instruction encoding. | |
3860 | */ | |
3861 | assert(fn != NULL); | |
3862 | do_mem_zpa(s, zt, pg, addr, fn); | |
3863 | } | |
3864 | ||
3865 | static bool trans_LD_zprr(DisasContext *s, arg_rprr_load *a, uint32_t insn) | |
3866 | { | |
3867 | if (a->rm == 31) { | |
3868 | return false; | |
3869 | } | |
3870 | if (sve_access_check(s)) { | |
3871 | TCGv_i64 addr = new_tmp_a64(s); | |
3872 | tcg_gen_muli_i64(addr, cpu_reg(s, a->rm), | |
3873 | (a->nreg + 1) << dtype_msz(a->dtype)); | |
3874 | tcg_gen_add_i64(addr, addr, cpu_reg_sp(s, a->rn)); | |
3875 | do_ld_zpa(s, a->rd, a->pg, addr, a->dtype, a->nreg); | |
3876 | } | |
3877 | return true; | |
3878 | } | |
3879 | ||
3880 | static bool trans_LD_zpri(DisasContext *s, arg_rpri_load *a, uint32_t insn) | |
3881 | { | |
3882 | if (sve_access_check(s)) { | |
3883 | int vsz = vec_full_reg_size(s); | |
3884 | int elements = vsz >> dtype_esz[a->dtype]; | |
3885 | TCGv_i64 addr = new_tmp_a64(s); | |
3886 | ||
3887 | tcg_gen_addi_i64(addr, cpu_reg_sp(s, a->rn), | |
3888 | (a->imm * elements * (a->nreg + 1)) | |
3889 | << dtype_msz(a->dtype)); | |
3890 | do_ld_zpa(s, a->rd, a->pg, addr, a->dtype, a->nreg); | |
3891 | } | |
3892 | return true; | |
3893 | } | |
e2654d75 RH |
3894 | |
3895 | static bool trans_LDFF1_zprr(DisasContext *s, arg_rprr_load *a, uint32_t insn) | |
3896 | { | |
3897 | static gen_helper_gvec_mem * const fns[16] = { | |
3898 | gen_helper_sve_ldff1bb_r, | |
3899 | gen_helper_sve_ldff1bhu_r, | |
3900 | gen_helper_sve_ldff1bsu_r, | |
3901 | gen_helper_sve_ldff1bdu_r, | |
3902 | ||
3903 | gen_helper_sve_ldff1sds_r, | |
3904 | gen_helper_sve_ldff1hh_r, | |
3905 | gen_helper_sve_ldff1hsu_r, | |
3906 | gen_helper_sve_ldff1hdu_r, | |
3907 | ||
3908 | gen_helper_sve_ldff1hds_r, | |
3909 | gen_helper_sve_ldff1hss_r, | |
3910 | gen_helper_sve_ldff1ss_r, | |
3911 | gen_helper_sve_ldff1sdu_r, | |
3912 | ||
3913 | gen_helper_sve_ldff1bds_r, | |
3914 | gen_helper_sve_ldff1bss_r, | |
3915 | gen_helper_sve_ldff1bhs_r, | |
3916 | gen_helper_sve_ldff1dd_r, | |
3917 | }; | |
3918 | ||
3919 | if (sve_access_check(s)) { | |
3920 | TCGv_i64 addr = new_tmp_a64(s); | |
3921 | tcg_gen_shli_i64(addr, cpu_reg(s, a->rm), dtype_msz(a->dtype)); | |
3922 | tcg_gen_add_i64(addr, addr, cpu_reg_sp(s, a->rn)); | |
3923 | do_mem_zpa(s, a->rd, a->pg, addr, fns[a->dtype]); | |
3924 | } | |
3925 | return true; | |
3926 | } | |
3927 | ||
3928 | static bool trans_LDNF1_zpri(DisasContext *s, arg_rpri_load *a, uint32_t insn) | |
3929 | { | |
3930 | static gen_helper_gvec_mem * const fns[16] = { | |
3931 | gen_helper_sve_ldnf1bb_r, | |
3932 | gen_helper_sve_ldnf1bhu_r, | |
3933 | gen_helper_sve_ldnf1bsu_r, | |
3934 | gen_helper_sve_ldnf1bdu_r, | |
3935 | ||
3936 | gen_helper_sve_ldnf1sds_r, | |
3937 | gen_helper_sve_ldnf1hh_r, | |
3938 | gen_helper_sve_ldnf1hsu_r, | |
3939 | gen_helper_sve_ldnf1hdu_r, | |
3940 | ||
3941 | gen_helper_sve_ldnf1hds_r, | |
3942 | gen_helper_sve_ldnf1hss_r, | |
3943 | gen_helper_sve_ldnf1ss_r, | |
3944 | gen_helper_sve_ldnf1sdu_r, | |
3945 | ||
3946 | gen_helper_sve_ldnf1bds_r, | |
3947 | gen_helper_sve_ldnf1bss_r, | |
3948 | gen_helper_sve_ldnf1bhs_r, | |
3949 | gen_helper_sve_ldnf1dd_r, | |
3950 | }; | |
3951 | ||
3952 | if (sve_access_check(s)) { | |
3953 | int vsz = vec_full_reg_size(s); | |
3954 | int elements = vsz >> dtype_esz[a->dtype]; | |
3955 | int off = (a->imm * elements) << dtype_msz(a->dtype); | |
3956 | TCGv_i64 addr = new_tmp_a64(s); | |
3957 | ||
3958 | tcg_gen_addi_i64(addr, cpu_reg_sp(s, a->rn), off); | |
3959 | do_mem_zpa(s, a->rd, a->pg, addr, fns[a->dtype]); | |
3960 | } | |
3961 | return true; | |
3962 | } | |
1a039c7e | 3963 | |
05abe304 RH |
3964 | static void do_ldrq(DisasContext *s, int zt, int pg, TCGv_i64 addr, int msz) |
3965 | { | |
3966 | static gen_helper_gvec_mem * const fns[4] = { | |
3967 | gen_helper_sve_ld1bb_r, gen_helper_sve_ld1hh_r, | |
3968 | gen_helper_sve_ld1ss_r, gen_helper_sve_ld1dd_r, | |
3969 | }; | |
3970 | unsigned vsz = vec_full_reg_size(s); | |
3971 | TCGv_ptr t_pg; | |
3972 | TCGv_i32 desc; | |
3973 | ||
3974 | /* Load the first quadword using the normal predicated load helpers. */ | |
3975 | desc = tcg_const_i32(simd_desc(16, 16, zt)); | |
3976 | t_pg = tcg_temp_new_ptr(); | |
3977 | ||
3978 | tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, pg)); | |
3979 | fns[msz](cpu_env, t_pg, addr, desc); | |
3980 | ||
3981 | tcg_temp_free_ptr(t_pg); | |
3982 | tcg_temp_free_i32(desc); | |
3983 | ||
3984 | /* Replicate that first quadword. */ | |
3985 | if (vsz > 16) { | |
3986 | unsigned dofs = vec_full_reg_offset(s, zt); | |
3987 | tcg_gen_gvec_dup_mem(4, dofs + 16, dofs, vsz - 16, vsz - 16); | |
3988 | } | |
3989 | } | |
3990 | ||
3991 | static bool trans_LD1RQ_zprr(DisasContext *s, arg_rprr_load *a, uint32_t insn) | |
3992 | { | |
3993 | if (a->rm == 31) { | |
3994 | return false; | |
3995 | } | |
3996 | if (sve_access_check(s)) { | |
3997 | int msz = dtype_msz(a->dtype); | |
3998 | TCGv_i64 addr = new_tmp_a64(s); | |
3999 | tcg_gen_shli_i64(addr, cpu_reg(s, a->rm), msz); | |
4000 | tcg_gen_add_i64(addr, addr, cpu_reg_sp(s, a->rn)); | |
4001 | do_ldrq(s, a->rd, a->pg, addr, msz); | |
4002 | } | |
4003 | return true; | |
4004 | } | |
4005 | ||
4006 | static bool trans_LD1RQ_zpri(DisasContext *s, arg_rpri_load *a, uint32_t insn) | |
4007 | { | |
4008 | if (sve_access_check(s)) { | |
4009 | TCGv_i64 addr = new_tmp_a64(s); | |
4010 | tcg_gen_addi_i64(addr, cpu_reg_sp(s, a->rn), a->imm * 16); | |
4011 | do_ldrq(s, a->rd, a->pg, addr, dtype_msz(a->dtype)); | |
4012 | } | |
4013 | return true; | |
4014 | } | |
4015 | ||
68459864 RH |
4016 | /* Load and broadcast element. */ |
4017 | static bool trans_LD1R_zpri(DisasContext *s, arg_rpri_load *a, uint32_t insn) | |
4018 | { | |
4019 | if (!sve_access_check(s)) { | |
4020 | return true; | |
4021 | } | |
4022 | ||
4023 | unsigned vsz = vec_full_reg_size(s); | |
4024 | unsigned psz = pred_full_reg_size(s); | |
4025 | unsigned esz = dtype_esz[a->dtype]; | |
4026 | TCGLabel *over = gen_new_label(); | |
4027 | TCGv_i64 temp; | |
4028 | ||
4029 | /* If the guarding predicate has no bits set, no load occurs. */ | |
4030 | if (psz <= 8) { | |
4031 | /* Reduce the pred_esz_masks value simply to reduce the | |
4032 | * size of the code generated here. | |
4033 | */ | |
4034 | uint64_t psz_mask = MAKE_64BIT_MASK(0, psz * 8); | |
4035 | temp = tcg_temp_new_i64(); | |
4036 | tcg_gen_ld_i64(temp, cpu_env, pred_full_reg_offset(s, a->pg)); | |
4037 | tcg_gen_andi_i64(temp, temp, pred_esz_masks[esz] & psz_mask); | |
4038 | tcg_gen_brcondi_i64(TCG_COND_EQ, temp, 0, over); | |
4039 | tcg_temp_free_i64(temp); | |
4040 | } else { | |
4041 | TCGv_i32 t32 = tcg_temp_new_i32(); | |
4042 | find_last_active(s, t32, esz, a->pg); | |
4043 | tcg_gen_brcondi_i32(TCG_COND_LT, t32, 0, over); | |
4044 | tcg_temp_free_i32(t32); | |
4045 | } | |
4046 | ||
4047 | /* Load the data. */ | |
4048 | temp = tcg_temp_new_i64(); | |
4049 | tcg_gen_addi_i64(temp, cpu_reg_sp(s, a->rn), a->imm << esz); | |
4050 | tcg_gen_qemu_ld_i64(temp, temp, get_mem_index(s), | |
4051 | s->be_data | dtype_mop[a->dtype]); | |
4052 | ||
4053 | /* Broadcast to *all* elements. */ | |
4054 | tcg_gen_gvec_dup_i64(esz, vec_full_reg_offset(s, a->rd), | |
4055 | vsz, vsz, temp); | |
4056 | tcg_temp_free_i64(temp); | |
4057 | ||
4058 | /* Zero the inactive elements. */ | |
4059 | gen_set_label(over); | |
4060 | do_movz_zpz(s, a->rd, a->rd, a->pg, esz); | |
4061 | return true; | |
4062 | } | |
4063 | ||
1a039c7e RH |
4064 | static void do_st_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr, |
4065 | int msz, int esz, int nreg) | |
4066 | { | |
4067 | static gen_helper_gvec_mem * const fn_single[4][4] = { | |
4068 | { gen_helper_sve_st1bb_r, gen_helper_sve_st1bh_r, | |
4069 | gen_helper_sve_st1bs_r, gen_helper_sve_st1bd_r }, | |
4070 | { NULL, gen_helper_sve_st1hh_r, | |
4071 | gen_helper_sve_st1hs_r, gen_helper_sve_st1hd_r }, | |
4072 | { NULL, NULL, | |
4073 | gen_helper_sve_st1ss_r, gen_helper_sve_st1sd_r }, | |
4074 | { NULL, NULL, NULL, gen_helper_sve_st1dd_r }, | |
4075 | }; | |
4076 | static gen_helper_gvec_mem * const fn_multiple[3][4] = { | |
4077 | { gen_helper_sve_st2bb_r, gen_helper_sve_st2hh_r, | |
4078 | gen_helper_sve_st2ss_r, gen_helper_sve_st2dd_r }, | |
4079 | { gen_helper_sve_st3bb_r, gen_helper_sve_st3hh_r, | |
4080 | gen_helper_sve_st3ss_r, gen_helper_sve_st3dd_r }, | |
4081 | { gen_helper_sve_st4bb_r, gen_helper_sve_st4hh_r, | |
4082 | gen_helper_sve_st4ss_r, gen_helper_sve_st4dd_r }, | |
4083 | }; | |
4084 | gen_helper_gvec_mem *fn; | |
4085 | ||
4086 | if (nreg == 0) { | |
4087 | /* ST1 */ | |
4088 | fn = fn_single[msz][esz]; | |
4089 | } else { | |
4090 | /* ST2, ST3, ST4 -- msz == esz, enforced by encoding */ | |
4091 | assert(msz == esz); | |
4092 | fn = fn_multiple[nreg - 1][msz]; | |
4093 | } | |
4094 | assert(fn != NULL); | |
4095 | do_mem_zpa(s, zt, pg, addr, fn); | |
4096 | } | |
4097 | ||
4098 | static bool trans_ST_zprr(DisasContext *s, arg_rprr_store *a, uint32_t insn) | |
4099 | { | |
4100 | if (a->rm == 31 || a->msz > a->esz) { | |
4101 | return false; | |
4102 | } | |
4103 | if (sve_access_check(s)) { | |
4104 | TCGv_i64 addr = new_tmp_a64(s); | |
4105 | tcg_gen_muli_i64(addr, cpu_reg(s, a->rm), (a->nreg + 1) << a->msz); | |
4106 | tcg_gen_add_i64(addr, addr, cpu_reg_sp(s, a->rn)); | |
4107 | do_st_zpa(s, a->rd, a->pg, addr, a->msz, a->esz, a->nreg); | |
4108 | } | |
4109 | return true; | |
4110 | } | |
4111 | ||
4112 | static bool trans_ST_zpri(DisasContext *s, arg_rpri_store *a, uint32_t insn) | |
4113 | { | |
4114 | if (a->msz > a->esz) { | |
4115 | return false; | |
4116 | } | |
4117 | if (sve_access_check(s)) { | |
4118 | int vsz = vec_full_reg_size(s); | |
4119 | int elements = vsz >> a->esz; | |
4120 | TCGv_i64 addr = new_tmp_a64(s); | |
4121 | ||
4122 | tcg_gen_addi_i64(addr, cpu_reg_sp(s, a->rn), | |
4123 | (a->imm * elements * (a->nreg + 1)) << a->msz); | |
4124 | do_st_zpa(s, a->rd, a->pg, addr, a->msz, a->esz, a->nreg); | |
4125 | } | |
4126 | return true; | |
4127 | } |