xref: /openbmc/qemu/target/hexagon/genptr.c (revision cbb45ff0)
1 /*
2  *  Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
3  *
4  *  This program is free software; you can redistribute it and/or modify
5  *  it under the terms of the GNU General Public License as published by
6  *  the Free Software Foundation; either version 2 of the License, or
7  *  (at your option) any later version.
8  *
9  *  This program is distributed in the hope that it will be useful,
10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  *  GNU General Public License for more details.
13  *
14  *  You should have received a copy of the GNU General Public License
15  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #include "qemu/osdep.h"
19 #include "cpu.h"
20 #include "internal.h"
21 #include "tcg/tcg-op.h"
22 #include "tcg/tcg-op-gvec.h"
23 #include "insn.h"
24 #include "opcodes.h"
25 #include "translate.h"
26 #define QEMU_GENERATE       /* Used internally by macros.h */
27 #include "macros.h"
28 #include "mmvec/macros.h"
29 #undef QEMU_GENERATE
30 #include "gen_tcg.h"
31 #include "gen_tcg_hvx.h"
32 
33 static inline void gen_log_predicated_reg_write(int rnum, TCGv val, int slot)
34 {
35     TCGv zero = tcg_constant_tl(0);
36     TCGv slot_mask = tcg_temp_new();
37 
38     tcg_gen_andi_tl(slot_mask, hex_slot_cancelled, 1 << slot);
39     tcg_gen_movcond_tl(TCG_COND_EQ, hex_new_value[rnum], slot_mask, zero,
40                            val, hex_new_value[rnum]);
41     if (HEX_DEBUG) {
42         /*
43          * Do this so HELPER(debug_commit_end) will know
44          *
45          * Note that slot_mask indicates the value is not written
46          * (i.e., slot was cancelled), so we create a true/false value before
47          * or'ing with hex_reg_written[rnum].
48          */
49         tcg_gen_setcond_tl(TCG_COND_EQ, slot_mask, slot_mask, zero);
50         tcg_gen_or_tl(hex_reg_written[rnum], hex_reg_written[rnum], slot_mask);
51     }
52 
53     tcg_temp_free(slot_mask);
54 }
55 
56 static inline void gen_log_reg_write(int rnum, TCGv val)
57 {
58     tcg_gen_mov_tl(hex_new_value[rnum], val);
59     if (HEX_DEBUG) {
60         /* Do this so HELPER(debug_commit_end) will know */
61         tcg_gen_movi_tl(hex_reg_written[rnum], 1);
62     }
63 }
64 
65 static void gen_log_predicated_reg_write_pair(int rnum, TCGv_i64 val, int slot)
66 {
67     TCGv val32 = tcg_temp_new();
68     TCGv zero = tcg_constant_tl(0);
69     TCGv slot_mask = tcg_temp_new();
70 
71     tcg_gen_andi_tl(slot_mask, hex_slot_cancelled, 1 << slot);
72     /* Low word */
73     tcg_gen_extrl_i64_i32(val32, val);
74     tcg_gen_movcond_tl(TCG_COND_EQ, hex_new_value[rnum],
75                        slot_mask, zero,
76                        val32, hex_new_value[rnum]);
77     /* High word */
78     tcg_gen_extrh_i64_i32(val32, val);
79     tcg_gen_movcond_tl(TCG_COND_EQ, hex_new_value[rnum + 1],
80                        slot_mask, zero,
81                        val32, hex_new_value[rnum + 1]);
82     if (HEX_DEBUG) {
83         /*
84          * Do this so HELPER(debug_commit_end) will know
85          *
86          * Note that slot_mask indicates the value is not written
87          * (i.e., slot was cancelled), so we create a true/false value before
88          * or'ing with hex_reg_written[rnum].
89          */
90         tcg_gen_setcond_tl(TCG_COND_EQ, slot_mask, slot_mask, zero);
91         tcg_gen_or_tl(hex_reg_written[rnum], hex_reg_written[rnum], slot_mask);
92         tcg_gen_or_tl(hex_reg_written[rnum + 1], hex_reg_written[rnum + 1],
93                       slot_mask);
94     }
95 
96     tcg_temp_free(val32);
97     tcg_temp_free(slot_mask);
98 }
99 
100 static void gen_log_reg_write_pair(int rnum, TCGv_i64 val)
101 {
102     /* Low word */
103     tcg_gen_extrl_i64_i32(hex_new_value[rnum], val);
104     if (HEX_DEBUG) {
105         /* Do this so HELPER(debug_commit_end) will know */
106         tcg_gen_movi_tl(hex_reg_written[rnum], 1);
107     }
108 
109     /* High word */
110     tcg_gen_extrh_i64_i32(hex_new_value[rnum + 1], val);
111     if (HEX_DEBUG) {
112         /* Do this so HELPER(debug_commit_end) will know */
113         tcg_gen_movi_tl(hex_reg_written[rnum + 1], 1);
114     }
115 }
116 
117 static inline void gen_log_pred_write(DisasContext *ctx, int pnum, TCGv val)
118 {
119     TCGv base_val = tcg_temp_new();
120 
121     tcg_gen_andi_tl(base_val, val, 0xff);
122 
123     /*
124      * Section 6.1.3 of the Hexagon V67 Programmer's Reference Manual
125      *
126      * Multiple writes to the same preg are and'ed together
127      * If this is the first predicate write in the packet, do a
128      * straight assignment.  Otherwise, do an and.
129      */
130     if (!test_bit(pnum, ctx->pregs_written)) {
131         tcg_gen_mov_tl(hex_new_pred_value[pnum], base_val);
132     } else {
133         tcg_gen_and_tl(hex_new_pred_value[pnum],
134                        hex_new_pred_value[pnum], base_val);
135     }
136     tcg_gen_ori_tl(hex_pred_written, hex_pred_written, 1 << pnum);
137 
138     tcg_temp_free(base_val);
139 }
140 
141 static inline void gen_read_p3_0(TCGv control_reg)
142 {
143     tcg_gen_movi_tl(control_reg, 0);
144     for (int i = 0; i < NUM_PREGS; i++) {
145         tcg_gen_deposit_tl(control_reg, control_reg, hex_pred[i], i * 8, 8);
146     }
147 }
148 
149 /*
150  * Certain control registers require special handling on read
151  *     HEX_REG_P3_0          aliased to the predicate registers
152  *                           -> concat the 4 predicate registers together
153  *     HEX_REG_PC            actual value stored in DisasContext
154  *                           -> assign from ctx->base.pc_next
155  *     HEX_REG_QEMU_*_CNT    changes in current TB in DisasContext
156  *                           -> add current TB changes to existing reg value
157  */
158 static inline void gen_read_ctrl_reg(DisasContext *ctx, const int reg_num,
159                                      TCGv dest)
160 {
161     if (reg_num == HEX_REG_P3_0) {
162         gen_read_p3_0(dest);
163     } else if (reg_num == HEX_REG_PC) {
164         tcg_gen_movi_tl(dest, ctx->base.pc_next);
165     } else if (reg_num == HEX_REG_QEMU_PKT_CNT) {
166         tcg_gen_addi_tl(dest, hex_gpr[HEX_REG_QEMU_PKT_CNT],
167                         ctx->num_packets);
168     } else if (reg_num == HEX_REG_QEMU_INSN_CNT) {
169         tcg_gen_addi_tl(dest, hex_gpr[HEX_REG_QEMU_INSN_CNT],
170                         ctx->num_insns);
171     } else if (reg_num == HEX_REG_QEMU_HVX_CNT) {
172         tcg_gen_addi_tl(dest, hex_gpr[HEX_REG_QEMU_HVX_CNT],
173                         ctx->num_hvx_insns);
174     } else {
175         tcg_gen_mov_tl(dest, hex_gpr[reg_num]);
176     }
177 }
178 
179 static inline void gen_read_ctrl_reg_pair(DisasContext *ctx, const int reg_num,
180                                           TCGv_i64 dest)
181 {
182     if (reg_num == HEX_REG_P3_0) {
183         TCGv p3_0 = tcg_temp_new();
184         gen_read_p3_0(p3_0);
185         tcg_gen_concat_i32_i64(dest, p3_0, hex_gpr[reg_num + 1]);
186         tcg_temp_free(p3_0);
187     } else if (reg_num == HEX_REG_PC - 1) {
188         TCGv pc = tcg_constant_tl(ctx->base.pc_next);
189         tcg_gen_concat_i32_i64(dest, hex_gpr[reg_num], pc);
190     } else if (reg_num == HEX_REG_QEMU_PKT_CNT) {
191         TCGv pkt_cnt = tcg_temp_new();
192         TCGv insn_cnt = tcg_temp_new();
193         tcg_gen_addi_tl(pkt_cnt, hex_gpr[HEX_REG_QEMU_PKT_CNT],
194                         ctx->num_packets);
195         tcg_gen_addi_tl(insn_cnt, hex_gpr[HEX_REG_QEMU_INSN_CNT],
196                         ctx->num_insns);
197         tcg_gen_concat_i32_i64(dest, pkt_cnt, insn_cnt);
198         tcg_temp_free(pkt_cnt);
199         tcg_temp_free(insn_cnt);
200     } else if (reg_num == HEX_REG_QEMU_HVX_CNT) {
201         TCGv hvx_cnt = tcg_temp_new();
202         tcg_gen_addi_tl(hvx_cnt, hex_gpr[HEX_REG_QEMU_HVX_CNT],
203                         ctx->num_hvx_insns);
204         tcg_gen_concat_i32_i64(dest, hvx_cnt, hex_gpr[reg_num + 1]);
205         tcg_temp_free(hvx_cnt);
206     } else {
207         tcg_gen_concat_i32_i64(dest,
208             hex_gpr[reg_num],
209             hex_gpr[reg_num + 1]);
210     }
211 }
212 
213 static inline void gen_write_p3_0(TCGv control_reg)
214 {
215     for (int i = 0; i < NUM_PREGS; i++) {
216         tcg_gen_extract_tl(hex_pred[i], control_reg, i * 8, 8);
217     }
218 }
219 
220 /*
221  * Certain control registers require special handling on write
222  *     HEX_REG_P3_0          aliased to the predicate registers
223  *                           -> break the value across 4 predicate registers
224  *     HEX_REG_QEMU_*_CNT    changes in current TB in DisasContext
225  *                            -> clear the changes
226  */
227 static inline void gen_write_ctrl_reg(DisasContext *ctx, int reg_num,
228                                       TCGv val)
229 {
230     if (reg_num == HEX_REG_P3_0) {
231         gen_write_p3_0(val);
232     } else {
233         gen_log_reg_write(reg_num, val);
234         ctx_log_reg_write(ctx, reg_num);
235         if (reg_num == HEX_REG_QEMU_PKT_CNT) {
236             ctx->num_packets = 0;
237         }
238         if (reg_num == HEX_REG_QEMU_INSN_CNT) {
239             ctx->num_insns = 0;
240         }
241         if (reg_num == HEX_REG_QEMU_HVX_CNT) {
242             ctx->num_hvx_insns = 0;
243         }
244     }
245 }
246 
247 static inline void gen_write_ctrl_reg_pair(DisasContext *ctx, int reg_num,
248                                            TCGv_i64 val)
249 {
250     if (reg_num == HEX_REG_P3_0) {
251         TCGv val32 = tcg_temp_new();
252         tcg_gen_extrl_i64_i32(val32, val);
253         gen_write_p3_0(val32);
254         tcg_gen_extrh_i64_i32(val32, val);
255         gen_log_reg_write(reg_num + 1, val32);
256         tcg_temp_free(val32);
257         ctx_log_reg_write(ctx, reg_num + 1);
258     } else {
259         gen_log_reg_write_pair(reg_num, val);
260         ctx_log_reg_write_pair(ctx, reg_num);
261         if (reg_num == HEX_REG_QEMU_PKT_CNT) {
262             ctx->num_packets = 0;
263             ctx->num_insns = 0;
264         }
265         if (reg_num == HEX_REG_QEMU_HVX_CNT) {
266             ctx->num_hvx_insns = 0;
267         }
268     }
269 }
270 
271 static TCGv gen_get_byte(TCGv result, int N, TCGv src, bool sign)
272 {
273     if (sign) {
274         tcg_gen_sextract_tl(result, src, N * 8, 8);
275     } else {
276         tcg_gen_extract_tl(result, src, N * 8, 8);
277     }
278     return result;
279 }
280 
281 static TCGv gen_get_byte_i64(TCGv result, int N, TCGv_i64 src, bool sign)
282 {
283     TCGv_i64 res64 = tcg_temp_new_i64();
284     if (sign) {
285         tcg_gen_sextract_i64(res64, src, N * 8, 8);
286     } else {
287         tcg_gen_extract_i64(res64, src, N * 8, 8);
288     }
289     tcg_gen_extrl_i64_i32(result, res64);
290     tcg_temp_free_i64(res64);
291 
292     return result;
293 }
294 
295 static inline TCGv gen_get_half(TCGv result, int N, TCGv src, bool sign)
296 {
297     if (sign) {
298         tcg_gen_sextract_tl(result, src, N * 16, 16);
299     } else {
300         tcg_gen_extract_tl(result, src, N * 16, 16);
301     }
302     return result;
303 }
304 
305 static inline void gen_set_half(int N, TCGv result, TCGv src)
306 {
307     tcg_gen_deposit_tl(result, result, src, N * 16, 16);
308 }
309 
310 static inline void gen_set_half_i64(int N, TCGv_i64 result, TCGv src)
311 {
312     TCGv_i64 src64 = tcg_temp_new_i64();
313     tcg_gen_extu_i32_i64(src64, src);
314     tcg_gen_deposit_i64(result, result, src64, N * 16, 16);
315     tcg_temp_free_i64(src64);
316 }
317 
318 static void gen_set_byte_i64(int N, TCGv_i64 result, TCGv src)
319 {
320     TCGv_i64 src64 = tcg_temp_new_i64();
321     tcg_gen_extu_i32_i64(src64, src);
322     tcg_gen_deposit_i64(result, result, src64, N * 8, 8);
323     tcg_temp_free_i64(src64);
324 }
325 
326 static inline void gen_load_locked4u(TCGv dest, TCGv vaddr, int mem_index)
327 {
328     tcg_gen_qemu_ld32u(dest, vaddr, mem_index);
329     tcg_gen_mov_tl(hex_llsc_addr, vaddr);
330     tcg_gen_mov_tl(hex_llsc_val, dest);
331 }
332 
333 static inline void gen_load_locked8u(TCGv_i64 dest, TCGv vaddr, int mem_index)
334 {
335     tcg_gen_qemu_ld64(dest, vaddr, mem_index);
336     tcg_gen_mov_tl(hex_llsc_addr, vaddr);
337     tcg_gen_mov_i64(hex_llsc_val_i64, dest);
338 }
339 
340 static inline void gen_store_conditional4(DisasContext *ctx,
341                                           TCGv pred, TCGv vaddr, TCGv src)
342 {
343     TCGLabel *fail = gen_new_label();
344     TCGLabel *done = gen_new_label();
345     TCGv one, zero, tmp;
346 
347     tcg_gen_brcond_tl(TCG_COND_NE, vaddr, hex_llsc_addr, fail);
348 
349     one = tcg_constant_tl(0xff);
350     zero = tcg_constant_tl(0);
351     tmp = tcg_temp_new();
352     tcg_gen_atomic_cmpxchg_tl(tmp, hex_llsc_addr, hex_llsc_val, src,
353                               ctx->mem_idx, MO_32);
354     tcg_gen_movcond_tl(TCG_COND_EQ, pred, tmp, hex_llsc_val,
355                        one, zero);
356     tcg_temp_free(tmp);
357     tcg_gen_br(done);
358 
359     gen_set_label(fail);
360     tcg_gen_movi_tl(pred, 0);
361 
362     gen_set_label(done);
363     tcg_gen_movi_tl(hex_llsc_addr, ~0);
364 }
365 
366 static inline void gen_store_conditional8(DisasContext *ctx,
367                                           TCGv pred, TCGv vaddr, TCGv_i64 src)
368 {
369     TCGLabel *fail = gen_new_label();
370     TCGLabel *done = gen_new_label();
371     TCGv_i64 one, zero, tmp;
372 
373     tcg_gen_brcond_tl(TCG_COND_NE, vaddr, hex_llsc_addr, fail);
374 
375     one = tcg_constant_i64(0xff);
376     zero = tcg_constant_i64(0);
377     tmp = tcg_temp_new_i64();
378     tcg_gen_atomic_cmpxchg_i64(tmp, hex_llsc_addr, hex_llsc_val_i64, src,
379                                ctx->mem_idx, MO_64);
380     tcg_gen_movcond_i64(TCG_COND_EQ, tmp, tmp, hex_llsc_val_i64,
381                         one, zero);
382     tcg_gen_extrl_i64_i32(pred, tmp);
383     tcg_temp_free_i64(tmp);
384     tcg_gen_br(done);
385 
386     gen_set_label(fail);
387     tcg_gen_movi_tl(pred, 0);
388 
389     gen_set_label(done);
390     tcg_gen_movi_tl(hex_llsc_addr, ~0);
391 }
392 
393 static inline void gen_store32(TCGv vaddr, TCGv src, int width, int slot)
394 {
395     tcg_gen_mov_tl(hex_store_addr[slot], vaddr);
396     tcg_gen_movi_tl(hex_store_width[slot], width);
397     tcg_gen_mov_tl(hex_store_val32[slot], src);
398 }
399 
400 static inline void gen_store1(TCGv_env cpu_env, TCGv vaddr, TCGv src,
401                               DisasContext *ctx, int slot)
402 {
403     gen_store32(vaddr, src, 1, slot);
404     ctx->store_width[slot] = 1;
405 }
406 
407 static inline void gen_store1i(TCGv_env cpu_env, TCGv vaddr, int32_t src,
408                                DisasContext *ctx, int slot)
409 {
410     TCGv tmp = tcg_constant_tl(src);
411     gen_store1(cpu_env, vaddr, tmp, ctx, slot);
412 }
413 
414 static inline void gen_store2(TCGv_env cpu_env, TCGv vaddr, TCGv src,
415                               DisasContext *ctx, int slot)
416 {
417     gen_store32(vaddr, src, 2, slot);
418     ctx->store_width[slot] = 2;
419 }
420 
421 static inline void gen_store2i(TCGv_env cpu_env, TCGv vaddr, int32_t src,
422                                DisasContext *ctx, int slot)
423 {
424     TCGv tmp = tcg_constant_tl(src);
425     gen_store2(cpu_env, vaddr, tmp, ctx, slot);
426 }
427 
428 static inline void gen_store4(TCGv_env cpu_env, TCGv vaddr, TCGv src,
429                               DisasContext *ctx, int slot)
430 {
431     gen_store32(vaddr, src, 4, slot);
432     ctx->store_width[slot] = 4;
433 }
434 
435 static inline void gen_store4i(TCGv_env cpu_env, TCGv vaddr, int32_t src,
436                                DisasContext *ctx, int slot)
437 {
438     TCGv tmp = tcg_constant_tl(src);
439     gen_store4(cpu_env, vaddr, tmp, ctx, slot);
440 }
441 
442 static inline void gen_store8(TCGv_env cpu_env, TCGv vaddr, TCGv_i64 src,
443                               DisasContext *ctx, int slot)
444 {
445     tcg_gen_mov_tl(hex_store_addr[slot], vaddr);
446     tcg_gen_movi_tl(hex_store_width[slot], 8);
447     tcg_gen_mov_i64(hex_store_val64[slot], src);
448     ctx->store_width[slot] = 8;
449 }
450 
451 static inline void gen_store8i(TCGv_env cpu_env, TCGv vaddr, int64_t src,
452                                DisasContext *ctx, int slot)
453 {
454     TCGv_i64 tmp = tcg_constant_i64(src);
455     gen_store8(cpu_env, vaddr, tmp, ctx, slot);
456 }
457 
458 static TCGv gen_8bitsof(TCGv result, TCGv value)
459 {
460     TCGv zero = tcg_constant_tl(0);
461     TCGv ones = tcg_constant_tl(0xff);
462     tcg_gen_movcond_tl(TCG_COND_NE, result, value, zero, ones, zero);
463 
464     return result;
465 }
466 
467 static intptr_t vreg_src_off(DisasContext *ctx, int num)
468 {
469     intptr_t offset = offsetof(CPUHexagonState, VRegs[num]);
470 
471     if (test_bit(num, ctx->vregs_select)) {
472         offset = ctx_future_vreg_off(ctx, num, 1, false);
473     }
474     if (test_bit(num, ctx->vregs_updated_tmp)) {
475         offset = ctx_tmp_vreg_off(ctx, num, 1, false);
476     }
477     return offset;
478 }
479 
480 static void gen_log_vreg_write(DisasContext *ctx, intptr_t srcoff, int num,
481                                VRegWriteType type, int slot_num,
482                                bool is_predicated)
483 {
484     TCGLabel *label_end = NULL;
485     intptr_t dstoff;
486 
487     if (is_predicated) {
488         TCGv cancelled = tcg_temp_local_new();
489         label_end = gen_new_label();
490 
491         /* Don't do anything if the slot was cancelled */
492         tcg_gen_extract_tl(cancelled, hex_slot_cancelled, slot_num, 1);
493         tcg_gen_brcondi_tl(TCG_COND_NE, cancelled, 0, label_end);
494         tcg_temp_free(cancelled);
495     }
496 
497     if (type != EXT_TMP) {
498         dstoff = ctx_future_vreg_off(ctx, num, 1, true);
499         tcg_gen_gvec_mov(MO_64, dstoff, srcoff,
500                          sizeof(MMVector), sizeof(MMVector));
501         tcg_gen_ori_tl(hex_VRegs_updated, hex_VRegs_updated, 1 << num);
502     } else {
503         dstoff = ctx_tmp_vreg_off(ctx, num, 1, false);
504         tcg_gen_gvec_mov(MO_64, dstoff, srcoff,
505                          sizeof(MMVector), sizeof(MMVector));
506     }
507 
508     if (is_predicated) {
509         gen_set_label(label_end);
510     }
511 }
512 
513 static void gen_log_vreg_write_pair(DisasContext *ctx, intptr_t srcoff, int num,
514                                     VRegWriteType type, int slot_num,
515                                     bool is_predicated)
516 {
517     gen_log_vreg_write(ctx, srcoff, num ^ 0, type, slot_num, is_predicated);
518     srcoff += sizeof(MMVector);
519     gen_log_vreg_write(ctx, srcoff, num ^ 1, type, slot_num, is_predicated);
520 }
521 
522 static void gen_log_qreg_write(intptr_t srcoff, int num, int vnew,
523                                int slot_num, bool is_predicated)
524 {
525     TCGLabel *label_end = NULL;
526     intptr_t dstoff;
527 
528     if (is_predicated) {
529         TCGv cancelled = tcg_temp_local_new();
530         label_end = gen_new_label();
531 
532         /* Don't do anything if the slot was cancelled */
533         tcg_gen_extract_tl(cancelled, hex_slot_cancelled, slot_num, 1);
534         tcg_gen_brcondi_tl(TCG_COND_NE, cancelled, 0, label_end);
535         tcg_temp_free(cancelled);
536     }
537 
538     dstoff = offsetof(CPUHexagonState, future_QRegs[num]);
539     tcg_gen_gvec_mov(MO_64, dstoff, srcoff, sizeof(MMQReg), sizeof(MMQReg));
540 
541     if (is_predicated) {
542         tcg_gen_ori_tl(hex_QRegs_updated, hex_QRegs_updated, 1 << num);
543         gen_set_label(label_end);
544     }
545 }
546 
547 static void gen_vreg_load(DisasContext *ctx, intptr_t dstoff, TCGv src,
548                           bool aligned)
549 {
550     TCGv_i64 tmp = tcg_temp_new_i64();
551     if (aligned) {
552         tcg_gen_andi_tl(src, src, ~((int32_t)sizeof(MMVector) - 1));
553     }
554     for (int i = 0; i < sizeof(MMVector) / 8; i++) {
555         tcg_gen_qemu_ld64(tmp, src, ctx->mem_idx);
556         tcg_gen_addi_tl(src, src, 8);
557         tcg_gen_st_i64(tmp, cpu_env, dstoff + i * 8);
558     }
559     tcg_temp_free_i64(tmp);
560 }
561 
562 static void gen_vreg_store(DisasContext *ctx, Insn *insn, Packet *pkt,
563                            TCGv EA, intptr_t srcoff, int slot, bool aligned)
564 {
565     intptr_t dstoff = offsetof(CPUHexagonState, vstore[slot].data);
566     intptr_t maskoff = offsetof(CPUHexagonState, vstore[slot].mask);
567 
568     if (is_gather_store_insn(insn, pkt)) {
569         TCGv sl = tcg_constant_tl(slot);
570         gen_helper_gather_store(cpu_env, EA, sl);
571         return;
572     }
573 
574     tcg_gen_movi_tl(hex_vstore_pending[slot], 1);
575     if (aligned) {
576         tcg_gen_andi_tl(hex_vstore_addr[slot], EA,
577                         ~((int32_t)sizeof(MMVector) - 1));
578     } else {
579         tcg_gen_mov_tl(hex_vstore_addr[slot], EA);
580     }
581     tcg_gen_movi_tl(hex_vstore_size[slot], sizeof(MMVector));
582 
583     /* Copy the data to the vstore buffer */
584     tcg_gen_gvec_mov(MO_64, dstoff, srcoff, sizeof(MMVector), sizeof(MMVector));
585     /* Set the mask to all 1's */
586     tcg_gen_gvec_dup_imm(MO_64, maskoff, sizeof(MMQReg), sizeof(MMQReg), ~0LL);
587 }
588 
589 static void gen_vreg_masked_store(DisasContext *ctx, TCGv EA, intptr_t srcoff,
590                                   intptr_t bitsoff, int slot, bool invert)
591 {
592     intptr_t dstoff = offsetof(CPUHexagonState, vstore[slot].data);
593     intptr_t maskoff = offsetof(CPUHexagonState, vstore[slot].mask);
594 
595     tcg_gen_movi_tl(hex_vstore_pending[slot], 1);
596     tcg_gen_andi_tl(hex_vstore_addr[slot], EA,
597                     ~((int32_t)sizeof(MMVector) - 1));
598     tcg_gen_movi_tl(hex_vstore_size[slot], sizeof(MMVector));
599 
600     /* Copy the data to the vstore buffer */
601     tcg_gen_gvec_mov(MO_64, dstoff, srcoff, sizeof(MMVector), sizeof(MMVector));
602     /* Copy the mask */
603     tcg_gen_gvec_mov(MO_64, maskoff, bitsoff, sizeof(MMQReg), sizeof(MMQReg));
604     if (invert) {
605         tcg_gen_gvec_not(MO_64, maskoff, maskoff,
606                          sizeof(MMQReg), sizeof(MMQReg));
607     }
608 }
609 
610 static void vec_to_qvec(size_t size, intptr_t dstoff, intptr_t srcoff)
611 {
612     TCGv_i64 tmp = tcg_temp_new_i64();
613     TCGv_i64 word = tcg_temp_new_i64();
614     TCGv_i64 bits = tcg_temp_new_i64();
615     TCGv_i64 mask = tcg_temp_new_i64();
616     TCGv_i64 zero = tcg_constant_i64(0);
617     TCGv_i64 ones = tcg_constant_i64(~0);
618 
619     for (int i = 0; i < sizeof(MMVector) / 8; i++) {
620         tcg_gen_ld_i64(tmp, cpu_env, srcoff + i * 8);
621         tcg_gen_movi_i64(mask, 0);
622 
623         for (int j = 0; j < 8; j += size) {
624             tcg_gen_extract_i64(word, tmp, j * 8, size * 8);
625             tcg_gen_movcond_i64(TCG_COND_NE, bits, word, zero, ones, zero);
626             tcg_gen_deposit_i64(mask, mask, bits, j, size);
627         }
628 
629         tcg_gen_st8_i64(mask, cpu_env, dstoff + i);
630     }
631     tcg_temp_free_i64(tmp);
632     tcg_temp_free_i64(word);
633     tcg_temp_free_i64(bits);
634     tcg_temp_free_i64(mask);
635 }
636 
637 #include "tcg_funcs_generated.c.inc"
638 #include "tcg_func_table_generated.c.inc"
639