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Commit | Line | Data |
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4a136e0a CF |
1 | /* |
2 | * Initial TCG Implementation for aarch64 | |
3 | * | |
4 | * Copyright (c) 2013 Huawei Technologies Duesseldorf GmbH | |
5 | * Written by Claudio Fontana | |
6 | * | |
7 | * This work is licensed under the terms of the GNU GPL, version 2 or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * See the COPYING file in the top-level directory for details. | |
11 | */ | |
12 | ||
9ecefc84 | 13 | #include "tcg-be-ldst.h" |
4a136e0a CF |
14 | #include "qemu/bitops.h" |
15 | ||
7763ffa0 RH |
16 | /* We're going to re-use TCGType in setting of the SF bit, which controls |
17 | the size of the operation performed. If we know the values match, it | |
18 | makes things much cleaner. */ | |
19 | QEMU_BUILD_BUG_ON(TCG_TYPE_I32 != 0 || TCG_TYPE_I64 != 1); | |
20 | ||
8d8fdbae | 21 | #ifdef CONFIG_DEBUG_TCG |
4a136e0a CF |
22 | static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = { |
23 | "%x0", "%x1", "%x2", "%x3", "%x4", "%x5", "%x6", "%x7", | |
24 | "%x8", "%x9", "%x10", "%x11", "%x12", "%x13", "%x14", "%x15", | |
25 | "%x16", "%x17", "%x18", "%x19", "%x20", "%x21", "%x22", "%x23", | |
d82b78e4 | 26 | "%x24", "%x25", "%x26", "%x27", "%x28", "%fp", "%x30", "%sp", |
4a136e0a | 27 | }; |
8d8fdbae | 28 | #endif /* CONFIG_DEBUG_TCG */ |
4a136e0a CF |
29 | |
30 | static const int tcg_target_reg_alloc_order[] = { | |
31 | TCG_REG_X20, TCG_REG_X21, TCG_REG_X22, TCG_REG_X23, | |
32 | TCG_REG_X24, TCG_REG_X25, TCG_REG_X26, TCG_REG_X27, | |
b76f21a7 | 33 | TCG_REG_X28, /* we will reserve this for guest_base if configured */ |
4a136e0a | 34 | |
d82b78e4 RH |
35 | TCG_REG_X8, TCG_REG_X9, TCG_REG_X10, TCG_REG_X11, |
36 | TCG_REG_X12, TCG_REG_X13, TCG_REG_X14, TCG_REG_X15, | |
4a136e0a CF |
37 | TCG_REG_X16, TCG_REG_X17, |
38 | ||
4a136e0a CF |
39 | TCG_REG_X0, TCG_REG_X1, TCG_REG_X2, TCG_REG_X3, |
40 | TCG_REG_X4, TCG_REG_X5, TCG_REG_X6, TCG_REG_X7, | |
41 | ||
d82b78e4 RH |
42 | /* X18 reserved by system */ |
43 | /* X19 reserved for AREG0 */ | |
44 | /* X29 reserved as fp */ | |
45 | /* X30 reserved as temporary */ | |
4a136e0a CF |
46 | }; |
47 | ||
48 | static const int tcg_target_call_iarg_regs[8] = { | |
49 | TCG_REG_X0, TCG_REG_X1, TCG_REG_X2, TCG_REG_X3, | |
50 | TCG_REG_X4, TCG_REG_X5, TCG_REG_X6, TCG_REG_X7 | |
51 | }; | |
52 | static const int tcg_target_call_oarg_regs[1] = { | |
53 | TCG_REG_X0 | |
54 | }; | |
55 | ||
d82b78e4 | 56 | #define TCG_REG_TMP TCG_REG_X30 |
4a136e0a | 57 | |
6a91c7c9 | 58 | #ifndef CONFIG_SOFTMMU |
352bcb0a RH |
59 | /* Note that XZR cannot be encoded in the address base register slot, |
60 | as that actaully encodes SP. So if we need to zero-extend the guest | |
61 | address, via the address index register slot, we need to load even | |
62 | a zero guest base into a register. */ | |
63 | #define USE_GUEST_BASE (guest_base != 0 || TARGET_LONG_BITS == 32) | |
4cbea598 | 64 | #define TCG_REG_GUEST_BASE TCG_REG_X28 |
6a91c7c9 JK |
65 | #endif |
66 | ||
8587c30c | 67 | static inline void reloc_pc26(tcg_insn_unit *code_ptr, tcg_insn_unit *target) |
4a136e0a | 68 | { |
8587c30c | 69 | ptrdiff_t offset = target - code_ptr; |
eabb7b91 | 70 | tcg_debug_assert(offset == sextract64(offset, 0, 26)); |
4a136e0a CF |
71 | /* read instruction, mask away previous PC_REL26 parameter contents, |
72 | set the proper offset, then write back the instruction. */ | |
8587c30c | 73 | *code_ptr = deposit32(*code_ptr, 0, 26, offset); |
4a136e0a CF |
74 | } |
75 | ||
9e269112 SF |
76 | static inline void reloc_pc26_atomic(tcg_insn_unit *code_ptr, |
77 | tcg_insn_unit *target) | |
78 | { | |
79 | ptrdiff_t offset = target - code_ptr; | |
80 | tcg_insn_unit insn; | |
81 | tcg_debug_assert(offset == sextract64(offset, 0, 26)); | |
82 | /* read instruction, mask away previous PC_REL26 parameter contents, | |
83 | set the proper offset, then write back the instruction. */ | |
84 | insn = atomic_read(code_ptr); | |
85 | atomic_set(code_ptr, deposit32(insn, 0, 26, offset)); | |
86 | } | |
87 | ||
8587c30c | 88 | static inline void reloc_pc19(tcg_insn_unit *code_ptr, tcg_insn_unit *target) |
4a136e0a | 89 | { |
8587c30c | 90 | ptrdiff_t offset = target - code_ptr; |
eabb7b91 | 91 | tcg_debug_assert(offset == sextract64(offset, 0, 19)); |
8587c30c | 92 | *code_ptr = deposit32(*code_ptr, 5, 19, offset); |
4a136e0a CF |
93 | } |
94 | ||
8587c30c | 95 | static inline void patch_reloc(tcg_insn_unit *code_ptr, int type, |
2ba7fae2 | 96 | intptr_t value, intptr_t addend) |
4a136e0a | 97 | { |
eabb7b91 | 98 | tcg_debug_assert(addend == 0); |
4a136e0a CF |
99 | switch (type) { |
100 | case R_AARCH64_JUMP26: | |
101 | case R_AARCH64_CALL26: | |
8587c30c | 102 | reloc_pc26(code_ptr, (tcg_insn_unit *)value); |
4a136e0a CF |
103 | break; |
104 | case R_AARCH64_CONDBR19: | |
8587c30c | 105 | reloc_pc19(code_ptr, (tcg_insn_unit *)value); |
4a136e0a | 106 | break; |
4a136e0a CF |
107 | default: |
108 | tcg_abort(); | |
109 | } | |
110 | } | |
111 | ||
170bf931 RH |
112 | #define TCG_CT_CONST_AIMM 0x100 |
113 | #define TCG_CT_CONST_LIMM 0x200 | |
114 | #define TCG_CT_CONST_ZERO 0x400 | |
115 | #define TCG_CT_CONST_MONE 0x800 | |
90f1cd91 | 116 | |
4a136e0a | 117 | /* parse target specific constraints */ |
069ea736 RH |
118 | static const char *target_parse_constraint(TCGArgConstraint *ct, |
119 | const char *ct_str, TCGType type) | |
4a136e0a | 120 | { |
069ea736 | 121 | switch (*ct_str++) { |
4a136e0a CF |
122 | case 'r': |
123 | ct->ct |= TCG_CT_REG; | |
124 | tcg_regset_set32(ct->u.regs, 0, (1ULL << TCG_TARGET_NB_REGS) - 1); | |
125 | break; | |
126 | case 'l': /* qemu_ld / qemu_st address, data_reg */ | |
127 | ct->ct |= TCG_CT_REG; | |
128 | tcg_regset_set32(ct->u.regs, 0, (1ULL << TCG_TARGET_NB_REGS) - 1); | |
129 | #ifdef CONFIG_SOFTMMU | |
130 | /* x0 and x1 will be overwritten when reading the tlb entry, | |
131 | and x2, and x3 for helper args, better to avoid using them. */ | |
132 | tcg_regset_reset_reg(ct->u.regs, TCG_REG_X0); | |
133 | tcg_regset_reset_reg(ct->u.regs, TCG_REG_X1); | |
134 | tcg_regset_reset_reg(ct->u.regs, TCG_REG_X2); | |
135 | tcg_regset_reset_reg(ct->u.regs, TCG_REG_X3); | |
136 | #endif | |
137 | break; | |
90f1cd91 RH |
138 | case 'A': /* Valid for arithmetic immediate (positive or negative). */ |
139 | ct->ct |= TCG_CT_CONST_AIMM; | |
140 | break; | |
e029f293 RH |
141 | case 'L': /* Valid for logical immediate. */ |
142 | ct->ct |= TCG_CT_CONST_LIMM; | |
143 | break; | |
c6e929e7 RH |
144 | case 'M': /* minus one */ |
145 | ct->ct |= TCG_CT_CONST_MONE; | |
146 | break; | |
04ce397b RH |
147 | case 'Z': /* zero */ |
148 | ct->ct |= TCG_CT_CONST_ZERO; | |
149 | break; | |
4a136e0a | 150 | default: |
069ea736 | 151 | return NULL; |
4a136e0a | 152 | } |
069ea736 | 153 | return ct_str; |
4a136e0a CF |
154 | } |
155 | ||
90f1cd91 RH |
156 | static inline bool is_aimm(uint64_t val) |
157 | { | |
158 | return (val & ~0xfff) == 0 || (val & ~0xfff000) == 0; | |
159 | } | |
160 | ||
e029f293 RH |
161 | static inline bool is_limm(uint64_t val) |
162 | { | |
163 | /* Taking a simplified view of the logical immediates for now, ignoring | |
164 | the replication that can happen across the field. Match bit patterns | |
165 | of the forms | |
166 | 0....01....1 | |
167 | 0..01..10..0 | |
168 | and their inverses. */ | |
169 | ||
170 | /* Make things easier below, by testing the form with msb clear. */ | |
171 | if ((int64_t)val < 0) { | |
172 | val = ~val; | |
173 | } | |
174 | if (val == 0) { | |
175 | return false; | |
176 | } | |
177 | val += val & -val; | |
178 | return (val & (val - 1)) == 0; | |
179 | } | |
180 | ||
f6c6afc1 | 181 | static int tcg_target_const_match(tcg_target_long val, TCGType type, |
90f1cd91 | 182 | const TCGArgConstraint *arg_ct) |
4a136e0a CF |
183 | { |
184 | int ct = arg_ct->ct; | |
185 | ||
186 | if (ct & TCG_CT_CONST) { | |
187 | return 1; | |
188 | } | |
170bf931 | 189 | if (type == TCG_TYPE_I32) { |
90f1cd91 RH |
190 | val = (int32_t)val; |
191 | } | |
192 | if ((ct & TCG_CT_CONST_AIMM) && (is_aimm(val) || is_aimm(-val))) { | |
193 | return 1; | |
194 | } | |
e029f293 RH |
195 | if ((ct & TCG_CT_CONST_LIMM) && is_limm(val)) { |
196 | return 1; | |
197 | } | |
04ce397b RH |
198 | if ((ct & TCG_CT_CONST_ZERO) && val == 0) { |
199 | return 1; | |
200 | } | |
c6e929e7 RH |
201 | if ((ct & TCG_CT_CONST_MONE) && val == -1) { |
202 | return 1; | |
203 | } | |
4a136e0a CF |
204 | |
205 | return 0; | |
206 | } | |
207 | ||
208 | enum aarch64_cond_code { | |
209 | COND_EQ = 0x0, | |
210 | COND_NE = 0x1, | |
211 | COND_CS = 0x2, /* Unsigned greater or equal */ | |
212 | COND_HS = COND_CS, /* ALIAS greater or equal */ | |
213 | COND_CC = 0x3, /* Unsigned less than */ | |
214 | COND_LO = COND_CC, /* ALIAS Lower */ | |
215 | COND_MI = 0x4, /* Negative */ | |
216 | COND_PL = 0x5, /* Zero or greater */ | |
217 | COND_VS = 0x6, /* Overflow */ | |
218 | COND_VC = 0x7, /* No overflow */ | |
219 | COND_HI = 0x8, /* Unsigned greater than */ | |
220 | COND_LS = 0x9, /* Unsigned less or equal */ | |
221 | COND_GE = 0xa, | |
222 | COND_LT = 0xb, | |
223 | COND_GT = 0xc, | |
224 | COND_LE = 0xd, | |
225 | COND_AL = 0xe, | |
226 | COND_NV = 0xf, /* behaves like COND_AL here */ | |
227 | }; | |
228 | ||
229 | static const enum aarch64_cond_code tcg_cond_to_aarch64[] = { | |
230 | [TCG_COND_EQ] = COND_EQ, | |
231 | [TCG_COND_NE] = COND_NE, | |
232 | [TCG_COND_LT] = COND_LT, | |
233 | [TCG_COND_GE] = COND_GE, | |
234 | [TCG_COND_LE] = COND_LE, | |
235 | [TCG_COND_GT] = COND_GT, | |
236 | /* unsigned */ | |
237 | [TCG_COND_LTU] = COND_LO, | |
238 | [TCG_COND_GTU] = COND_HI, | |
239 | [TCG_COND_GEU] = COND_HS, | |
240 | [TCG_COND_LEU] = COND_LS, | |
241 | }; | |
242 | ||
3d4299f4 RH |
243 | typedef enum { |
244 | LDST_ST = 0, /* store */ | |
245 | LDST_LD = 1, /* load */ | |
246 | LDST_LD_S_X = 2, /* load and sign-extend into Xt */ | |
247 | LDST_LD_S_W = 3, /* load and sign-extend into Wt */ | |
248 | } AArch64LdstType; | |
4a136e0a | 249 | |
50573c66 RH |
250 | /* We encode the format of the insn into the beginning of the name, so that |
251 | we can have the preprocessor help "typecheck" the insn vs the output | |
252 | function. Arm didn't provide us with nice names for the formats, so we | |
253 | use the section number of the architecture reference manual in which the | |
254 | instruction group is described. */ | |
255 | typedef enum { | |
3d9e69a2 RH |
256 | /* Compare and branch (immediate). */ |
257 | I3201_CBZ = 0x34000000, | |
258 | I3201_CBNZ = 0x35000000, | |
259 | ||
81d8a5ee RH |
260 | /* Conditional branch (immediate). */ |
261 | I3202_B_C = 0x54000000, | |
262 | ||
263 | /* Unconditional branch (immediate). */ | |
264 | I3206_B = 0x14000000, | |
265 | I3206_BL = 0x94000000, | |
266 | ||
267 | /* Unconditional branch (register). */ | |
268 | I3207_BR = 0xd61f0000, | |
269 | I3207_BLR = 0xd63f0000, | |
270 | I3207_RET = 0xd65f0000, | |
271 | ||
2acee8b2 PK |
272 | /* Load literal for loading the address at pc-relative offset */ |
273 | I3305_LDR = 0x58000000, | |
3d4299f4 RH |
274 | /* Load/store register. Described here as 3.3.12, but the helper |
275 | that emits them can transform to 3.3.10 or 3.3.13. */ | |
276 | I3312_STRB = 0x38000000 | LDST_ST << 22 | MO_8 << 30, | |
277 | I3312_STRH = 0x38000000 | LDST_ST << 22 | MO_16 << 30, | |
278 | I3312_STRW = 0x38000000 | LDST_ST << 22 | MO_32 << 30, | |
279 | I3312_STRX = 0x38000000 | LDST_ST << 22 | MO_64 << 30, | |
280 | ||
281 | I3312_LDRB = 0x38000000 | LDST_LD << 22 | MO_8 << 30, | |
282 | I3312_LDRH = 0x38000000 | LDST_LD << 22 | MO_16 << 30, | |
283 | I3312_LDRW = 0x38000000 | LDST_LD << 22 | MO_32 << 30, | |
284 | I3312_LDRX = 0x38000000 | LDST_LD << 22 | MO_64 << 30, | |
285 | ||
286 | I3312_LDRSBW = 0x38000000 | LDST_LD_S_W << 22 | MO_8 << 30, | |
287 | I3312_LDRSHW = 0x38000000 | LDST_LD_S_W << 22 | MO_16 << 30, | |
288 | ||
289 | I3312_LDRSBX = 0x38000000 | LDST_LD_S_X << 22 | MO_8 << 30, | |
290 | I3312_LDRSHX = 0x38000000 | LDST_LD_S_X << 22 | MO_16 << 30, | |
291 | I3312_LDRSWX = 0x38000000 | LDST_LD_S_X << 22 | MO_32 << 30, | |
292 | ||
6c0f0c0f | 293 | I3312_TO_I3310 = 0x00200800, |
3d4299f4 RH |
294 | I3312_TO_I3313 = 0x01000000, |
295 | ||
95f72aa9 RH |
296 | /* Load/store register pair instructions. */ |
297 | I3314_LDP = 0x28400000, | |
298 | I3314_STP = 0x28000000, | |
299 | ||
096c46c0 RH |
300 | /* Add/subtract immediate instructions. */ |
301 | I3401_ADDI = 0x11000000, | |
302 | I3401_ADDSI = 0x31000000, | |
303 | I3401_SUBI = 0x51000000, | |
304 | I3401_SUBSI = 0x71000000, | |
305 | ||
b3c56df7 RH |
306 | /* Bitfield instructions. */ |
307 | I3402_BFM = 0x33000000, | |
308 | I3402_SBFM = 0x13000000, | |
309 | I3402_UBFM = 0x53000000, | |
310 | ||
311 | /* Extract instruction. */ | |
312 | I3403_EXTR = 0x13800000, | |
313 | ||
e029f293 RH |
314 | /* Logical immediate instructions. */ |
315 | I3404_ANDI = 0x12000000, | |
316 | I3404_ORRI = 0x32000000, | |
317 | I3404_EORI = 0x52000000, | |
318 | ||
582ab779 RH |
319 | /* Move wide immediate instructions. */ |
320 | I3405_MOVN = 0x12800000, | |
321 | I3405_MOVZ = 0x52800000, | |
322 | I3405_MOVK = 0x72800000, | |
323 | ||
c6e310d9 RH |
324 | /* PC relative addressing instructions. */ |
325 | I3406_ADR = 0x10000000, | |
326 | I3406_ADRP = 0x90000000, | |
327 | ||
50573c66 RH |
328 | /* Add/subtract shifted register instructions (without a shift). */ |
329 | I3502_ADD = 0x0b000000, | |
330 | I3502_ADDS = 0x2b000000, | |
331 | I3502_SUB = 0x4b000000, | |
332 | I3502_SUBS = 0x6b000000, | |
333 | ||
334 | /* Add/subtract shifted register instructions (with a shift). */ | |
335 | I3502S_ADD_LSL = I3502_ADD, | |
336 | ||
c6e929e7 RH |
337 | /* Add/subtract with carry instructions. */ |
338 | I3503_ADC = 0x1a000000, | |
339 | I3503_SBC = 0x5a000000, | |
340 | ||
04ce397b RH |
341 | /* Conditional select instructions. */ |
342 | I3506_CSEL = 0x1a800000, | |
343 | I3506_CSINC = 0x1a800400, | |
53c76c19 RH |
344 | I3506_CSINV = 0x5a800000, |
345 | I3506_CSNEG = 0x5a800400, | |
04ce397b | 346 | |
edd8824c | 347 | /* Data-processing (1 source) instructions. */ |
53c76c19 RH |
348 | I3507_CLZ = 0x5ac01000, |
349 | I3507_RBIT = 0x5ac00000, | |
edd8824c RH |
350 | I3507_REV16 = 0x5ac00400, |
351 | I3507_REV32 = 0x5ac00800, | |
352 | I3507_REV64 = 0x5ac00c00, | |
353 | ||
df9351e3 RH |
354 | /* Data-processing (2 source) instructions. */ |
355 | I3508_LSLV = 0x1ac02000, | |
356 | I3508_LSRV = 0x1ac02400, | |
357 | I3508_ASRV = 0x1ac02800, | |
358 | I3508_RORV = 0x1ac02c00, | |
1fcc9ddf RH |
359 | I3508_SMULH = 0x9b407c00, |
360 | I3508_UMULH = 0x9bc07c00, | |
8678b71c RH |
361 | I3508_UDIV = 0x1ac00800, |
362 | I3508_SDIV = 0x1ac00c00, | |
363 | ||
364 | /* Data-processing (3 source) instructions. */ | |
365 | I3509_MADD = 0x1b000000, | |
366 | I3509_MSUB = 0x1b008000, | |
df9351e3 | 367 | |
50573c66 RH |
368 | /* Logical shifted register instructions (without a shift). */ |
369 | I3510_AND = 0x0a000000, | |
14b155dd | 370 | I3510_BIC = 0x0a200000, |
50573c66 | 371 | I3510_ORR = 0x2a000000, |
14b155dd | 372 | I3510_ORN = 0x2a200000, |
50573c66 | 373 | I3510_EOR = 0x4a000000, |
14b155dd | 374 | I3510_EON = 0x4a200000, |
50573c66 | 375 | I3510_ANDS = 0x6a000000, |
c7a59c2a | 376 | |
b68686bd | 377 | NOP = 0xd503201f, |
c7a59c2a PK |
378 | /* System instructions. */ |
379 | DMB_ISH = 0xd50338bf, | |
380 | DMB_LD = 0x00000100, | |
381 | DMB_ST = 0x00000200, | |
50573c66 | 382 | } AArch64Insn; |
4a136e0a | 383 | |
4a136e0a CF |
384 | static inline uint32_t tcg_in32(TCGContext *s) |
385 | { | |
386 | uint32_t v = *(uint32_t *)s->code_ptr; | |
387 | return v; | |
388 | } | |
389 | ||
50573c66 RH |
390 | /* Emit an opcode with "type-checking" of the format. */ |
391 | #define tcg_out_insn(S, FMT, OP, ...) \ | |
392 | glue(tcg_out_insn_,FMT)(S, glue(glue(glue(I,FMT),_),OP), ## __VA_ARGS__) | |
393 | ||
2acee8b2 PK |
394 | static void tcg_out_insn_3305(TCGContext *s, AArch64Insn insn, int imm19, TCGReg rt) |
395 | { | |
396 | tcg_out32(s, insn | (imm19 & 0x7ffff) << 5 | rt); | |
397 | } | |
398 | ||
3d9e69a2 RH |
399 | static void tcg_out_insn_3201(TCGContext *s, AArch64Insn insn, TCGType ext, |
400 | TCGReg rt, int imm19) | |
401 | { | |
402 | tcg_out32(s, insn | ext << 31 | (imm19 & 0x7ffff) << 5 | rt); | |
403 | } | |
404 | ||
81d8a5ee RH |
405 | static void tcg_out_insn_3202(TCGContext *s, AArch64Insn insn, |
406 | TCGCond c, int imm19) | |
407 | { | |
408 | tcg_out32(s, insn | tcg_cond_to_aarch64[c] | (imm19 & 0x7ffff) << 5); | |
409 | } | |
410 | ||
411 | static void tcg_out_insn_3206(TCGContext *s, AArch64Insn insn, int imm26) | |
412 | { | |
413 | tcg_out32(s, insn | (imm26 & 0x03ffffff)); | |
414 | } | |
415 | ||
416 | static void tcg_out_insn_3207(TCGContext *s, AArch64Insn insn, TCGReg rn) | |
417 | { | |
418 | tcg_out32(s, insn | rn << 5); | |
419 | } | |
420 | ||
95f72aa9 RH |
421 | static void tcg_out_insn_3314(TCGContext *s, AArch64Insn insn, |
422 | TCGReg r1, TCGReg r2, TCGReg rn, | |
423 | tcg_target_long ofs, bool pre, bool w) | |
424 | { | |
425 | insn |= 1u << 31; /* ext */ | |
426 | insn |= pre << 24; | |
427 | insn |= w << 23; | |
428 | ||
eabb7b91 | 429 | tcg_debug_assert(ofs >= -0x200 && ofs < 0x200 && (ofs & 7) == 0); |
95f72aa9 RH |
430 | insn |= (ofs & (0x7f << 3)) << (15 - 3); |
431 | ||
432 | tcg_out32(s, insn | r2 << 10 | rn << 5 | r1); | |
433 | } | |
434 | ||
096c46c0 RH |
435 | static void tcg_out_insn_3401(TCGContext *s, AArch64Insn insn, TCGType ext, |
436 | TCGReg rd, TCGReg rn, uint64_t aimm) | |
437 | { | |
438 | if (aimm > 0xfff) { | |
eabb7b91 | 439 | tcg_debug_assert((aimm & 0xfff) == 0); |
096c46c0 | 440 | aimm >>= 12; |
eabb7b91 | 441 | tcg_debug_assert(aimm <= 0xfff); |
096c46c0 RH |
442 | aimm |= 1 << 12; /* apply LSL 12 */ |
443 | } | |
444 | tcg_out32(s, insn | ext << 31 | aimm << 10 | rn << 5 | rd); | |
445 | } | |
446 | ||
e029f293 RH |
447 | /* This function can be used for both 3.4.2 (Bitfield) and 3.4.4 |
448 | (Logical immediate). Both insn groups have N, IMMR and IMMS fields | |
449 | that feed the DecodeBitMasks pseudo function. */ | |
450 | static void tcg_out_insn_3402(TCGContext *s, AArch64Insn insn, TCGType ext, | |
451 | TCGReg rd, TCGReg rn, int n, int immr, int imms) | |
452 | { | |
453 | tcg_out32(s, insn | ext << 31 | n << 22 | immr << 16 | imms << 10 | |
454 | | rn << 5 | rd); | |
455 | } | |
456 | ||
457 | #define tcg_out_insn_3404 tcg_out_insn_3402 | |
458 | ||
b3c56df7 RH |
459 | static void tcg_out_insn_3403(TCGContext *s, AArch64Insn insn, TCGType ext, |
460 | TCGReg rd, TCGReg rn, TCGReg rm, int imms) | |
461 | { | |
462 | tcg_out32(s, insn | ext << 31 | ext << 22 | rm << 16 | imms << 10 | |
463 | | rn << 5 | rd); | |
464 | } | |
465 | ||
582ab779 RH |
466 | /* This function is used for the Move (wide immediate) instruction group. |
467 | Note that SHIFT is a full shift count, not the 2 bit HW field. */ | |
468 | static void tcg_out_insn_3405(TCGContext *s, AArch64Insn insn, TCGType ext, | |
469 | TCGReg rd, uint16_t half, unsigned shift) | |
470 | { | |
eabb7b91 | 471 | tcg_debug_assert((shift & ~0x30) == 0); |
582ab779 RH |
472 | tcg_out32(s, insn | ext << 31 | shift << (21 - 4) | half << 5 | rd); |
473 | } | |
474 | ||
c6e310d9 RH |
475 | static void tcg_out_insn_3406(TCGContext *s, AArch64Insn insn, |
476 | TCGReg rd, int64_t disp) | |
477 | { | |
478 | tcg_out32(s, insn | (disp & 3) << 29 | (disp & 0x1ffffc) << (5 - 2) | rd); | |
479 | } | |
480 | ||
50573c66 RH |
481 | /* This function is for both 3.5.2 (Add/Subtract shifted register), for |
482 | the rare occasion when we actually want to supply a shift amount. */ | |
483 | static inline void tcg_out_insn_3502S(TCGContext *s, AArch64Insn insn, | |
484 | TCGType ext, TCGReg rd, TCGReg rn, | |
485 | TCGReg rm, int imm6) | |
486 | { | |
487 | tcg_out32(s, insn | ext << 31 | rm << 16 | imm6 << 10 | rn << 5 | rd); | |
488 | } | |
489 | ||
490 | /* This function is for 3.5.2 (Add/subtract shifted register), | |
491 | and 3.5.10 (Logical shifted register), for the vast majorty of cases | |
492 | when we don't want to apply a shift. Thus it can also be used for | |
493 | 3.5.3 (Add/subtract with carry) and 3.5.8 (Data processing 2 source). */ | |
494 | static void tcg_out_insn_3502(TCGContext *s, AArch64Insn insn, TCGType ext, | |
495 | TCGReg rd, TCGReg rn, TCGReg rm) | |
496 | { | |
497 | tcg_out32(s, insn | ext << 31 | rm << 16 | rn << 5 | rd); | |
498 | } | |
499 | ||
500 | #define tcg_out_insn_3503 tcg_out_insn_3502 | |
501 | #define tcg_out_insn_3508 tcg_out_insn_3502 | |
502 | #define tcg_out_insn_3510 tcg_out_insn_3502 | |
503 | ||
04ce397b RH |
504 | static void tcg_out_insn_3506(TCGContext *s, AArch64Insn insn, TCGType ext, |
505 | TCGReg rd, TCGReg rn, TCGReg rm, TCGCond c) | |
506 | { | |
507 | tcg_out32(s, insn | ext << 31 | rm << 16 | rn << 5 | rd | |
508 | | tcg_cond_to_aarch64[c] << 12); | |
509 | } | |
510 | ||
edd8824c RH |
511 | static void tcg_out_insn_3507(TCGContext *s, AArch64Insn insn, TCGType ext, |
512 | TCGReg rd, TCGReg rn) | |
513 | { | |
514 | tcg_out32(s, insn | ext << 31 | rn << 5 | rd); | |
515 | } | |
516 | ||
8678b71c RH |
517 | static void tcg_out_insn_3509(TCGContext *s, AArch64Insn insn, TCGType ext, |
518 | TCGReg rd, TCGReg rn, TCGReg rm, TCGReg ra) | |
519 | { | |
520 | tcg_out32(s, insn | ext << 31 | rm << 16 | ra << 10 | rn << 5 | rd); | |
521 | } | |
522 | ||
3d4299f4 | 523 | static void tcg_out_insn_3310(TCGContext *s, AArch64Insn insn, |
6c0f0c0f PB |
524 | TCGReg rd, TCGReg base, TCGType ext, |
525 | TCGReg regoff) | |
3d4299f4 RH |
526 | { |
527 | /* Note the AArch64Insn constants above are for C3.3.12. Adjust. */ | |
6c0f0c0f PB |
528 | tcg_out32(s, insn | I3312_TO_I3310 | regoff << 16 | |
529 | 0x4000 | ext << 13 | base << 5 | rd); | |
3d4299f4 | 530 | } |
50573c66 | 531 | |
3d4299f4 RH |
532 | static void tcg_out_insn_3312(TCGContext *s, AArch64Insn insn, |
533 | TCGReg rd, TCGReg rn, intptr_t offset) | |
4a136e0a | 534 | { |
3d4299f4 | 535 | tcg_out32(s, insn | (offset & 0x1ff) << 12 | rn << 5 | rd); |
4a136e0a CF |
536 | } |
537 | ||
3d4299f4 RH |
538 | static void tcg_out_insn_3313(TCGContext *s, AArch64Insn insn, |
539 | TCGReg rd, TCGReg rn, uintptr_t scaled_uimm) | |
b1f6dc0d | 540 | { |
3d4299f4 RH |
541 | /* Note the AArch64Insn constants above are for C3.3.12. Adjust. */ |
542 | tcg_out32(s, insn | I3312_TO_I3313 | scaled_uimm << 10 | rn << 5 | rd); | |
b1f6dc0d CF |
543 | } |
544 | ||
7d11fc7c RH |
545 | /* Register to register move using ORR (shifted register with no shift). */ |
546 | static void tcg_out_movr(TCGContext *s, TCGType ext, TCGReg rd, TCGReg rm) | |
4a136e0a | 547 | { |
7d11fc7c RH |
548 | tcg_out_insn(s, 3510, ORR, ext, rd, TCG_REG_XZR, rm); |
549 | } | |
550 | ||
551 | /* Register to register move using ADDI (move to/from SP). */ | |
552 | static void tcg_out_movr_sp(TCGContext *s, TCGType ext, TCGReg rd, TCGReg rn) | |
553 | { | |
554 | tcg_out_insn(s, 3401, ADDI, ext, rd, rn, 0); | |
4a136e0a CF |
555 | } |
556 | ||
4ec4f0bd RH |
557 | /* This function is used for the Logical (immediate) instruction group. |
558 | The value of LIMM must satisfy IS_LIMM. See the comment above about | |
559 | only supporting simplified logical immediates. */ | |
560 | static void tcg_out_logicali(TCGContext *s, AArch64Insn insn, TCGType ext, | |
561 | TCGReg rd, TCGReg rn, uint64_t limm) | |
562 | { | |
563 | unsigned h, l, r, c; | |
564 | ||
eabb7b91 | 565 | tcg_debug_assert(is_limm(limm)); |
4ec4f0bd RH |
566 | |
567 | h = clz64(limm); | |
568 | l = ctz64(limm); | |
569 | if (l == 0) { | |
570 | r = 0; /* form 0....01....1 */ | |
571 | c = ctz64(~limm) - 1; | |
572 | if (h == 0) { | |
573 | r = clz64(~limm); /* form 1..10..01..1 */ | |
574 | c += r; | |
575 | } | |
576 | } else { | |
577 | r = 64 - l; /* form 1....10....0 or 0..01..10..0 */ | |
578 | c = r - h - 1; | |
579 | } | |
580 | if (ext == TCG_TYPE_I32) { | |
581 | r &= 31; | |
582 | c &= 31; | |
583 | } | |
584 | ||
585 | tcg_out_insn_3404(s, insn, ext, rd, rn, ext, r, c); | |
586 | } | |
587 | ||
582ab779 RH |
588 | static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg rd, |
589 | tcg_target_long value) | |
4a136e0a | 590 | { |
dfeb5fe7 RH |
591 | int i, wantinv, shift; |
592 | tcg_target_long svalue = value; | |
593 | tcg_target_long ivalue = ~value; | |
dfeb5fe7 RH |
594 | |
595 | /* For 32-bit values, discard potential garbage in value. For 64-bit | |
596 | values within [2**31, 2**32-1], we can create smaller sequences by | |
597 | interpreting this as a negative 32-bit number, while ensuring that | |
598 | the high 32 bits are cleared by setting SF=0. */ | |
599 | if (type == TCG_TYPE_I32 || (value & ~0xffffffffull) == 0) { | |
600 | svalue = (int32_t)value; | |
582ab779 | 601 | value = (uint32_t)value; |
dfeb5fe7 RH |
602 | ivalue = (uint32_t)ivalue; |
603 | type = TCG_TYPE_I32; | |
604 | } | |
605 | ||
d8918df5 RH |
606 | /* Speed things up by handling the common case of small positive |
607 | and negative values specially. */ | |
608 | if ((value & ~0xffffull) == 0) { | |
609 | tcg_out_insn(s, 3405, MOVZ, type, rd, value, 0); | |
610 | return; | |
611 | } else if ((ivalue & ~0xffffull) == 0) { | |
612 | tcg_out_insn(s, 3405, MOVN, type, rd, ivalue, 0); | |
613 | return; | |
614 | } | |
615 | ||
4ec4f0bd RH |
616 | /* Check for bitfield immediates. For the benefit of 32-bit quantities, |
617 | use the sign-extended value. That lets us match rotated values such | |
618 | as 0xff0000ff with the same 64-bit logic matching 0xffffffffff0000ff. */ | |
619 | if (is_limm(svalue)) { | |
620 | tcg_out_logicali(s, I3404_ORRI, type, rd, TCG_REG_XZR, svalue); | |
621 | return; | |
622 | } | |
623 | ||
c6e310d9 RH |
624 | /* Look for host pointer values within 4G of the PC. This happens |
625 | often when loading pointers to QEMU's own data structures. */ | |
626 | if (type == TCG_TYPE_I64) { | |
cc74d332 RH |
627 | tcg_target_long disp = value - (intptr_t)s->code_ptr; |
628 | if (disp == sextract64(disp, 0, 21)) { | |
629 | tcg_out_insn(s, 3406, ADR, rd, disp); | |
630 | return; | |
631 | } | |
632 | disp = (value >> 12) - ((intptr_t)s->code_ptr >> 12); | |
c6e310d9 RH |
633 | if (disp == sextract64(disp, 0, 21)) { |
634 | tcg_out_insn(s, 3406, ADRP, rd, disp); | |
635 | if (value & 0xfff) { | |
636 | tcg_out_insn(s, 3401, ADDI, type, rd, rd, value & 0xfff); | |
637 | } | |
638 | return; | |
639 | } | |
640 | } | |
641 | ||
dfeb5fe7 RH |
642 | /* Would it take fewer insns to begin with MOVN? For the value and its |
643 | inverse, count the number of 16-bit lanes that are 0. */ | |
8cf9a3d3 | 644 | for (i = wantinv = 0; i < 64; i += 16) { |
dfeb5fe7 | 645 | tcg_target_long mask = 0xffffull << i; |
8cf9a3d3 RH |
646 | wantinv -= ((value & mask) == 0); |
647 | wantinv += ((ivalue & mask) == 0); | |
dfeb5fe7 | 648 | } |
dfeb5fe7 | 649 | |
8cf9a3d3 RH |
650 | if (wantinv <= 0) { |
651 | /* Find the lowest lane that is not 0x0000. */ | |
dfeb5fe7 | 652 | shift = ctz64(value) & (63 & -16); |
8cf9a3d3 RH |
653 | tcg_out_insn(s, 3405, MOVZ, type, rd, value >> shift, shift); |
654 | /* Clear out the lane that we just set. */ | |
4a136e0a | 655 | value &= ~(0xffffUL << shift); |
8cf9a3d3 RH |
656 | /* Iterate until all non-zero lanes have been processed. */ |
657 | while (value) { | |
658 | shift = ctz64(value) & (63 & -16); | |
659 | tcg_out_insn(s, 3405, MOVK, type, rd, value >> shift, shift); | |
660 | value &= ~(0xffffUL << shift); | |
661 | } | |
662 | } else { | |
663 | /* Like above, but with the inverted value and MOVN to start. */ | |
664 | shift = ctz64(ivalue) & (63 & -16); | |
665 | tcg_out_insn(s, 3405, MOVN, type, rd, ivalue >> shift, shift); | |
666 | ivalue &= ~(0xffffUL << shift); | |
667 | while (ivalue) { | |
668 | shift = ctz64(ivalue) & (63 & -16); | |
669 | /* Provide MOVK with the non-inverted value. */ | |
670 | tcg_out_insn(s, 3405, MOVK, type, rd, ~(ivalue >> shift), shift); | |
671 | ivalue &= ~(0xffffUL << shift); | |
672 | } | |
dfeb5fe7 | 673 | } |
4a136e0a CF |
674 | } |
675 | ||
3d4299f4 RH |
676 | /* Define something more legible for general use. */ |
677 | #define tcg_out_ldst_r tcg_out_insn_3310 | |
4a136e0a | 678 | |
3d4299f4 RH |
679 | static void tcg_out_ldst(TCGContext *s, AArch64Insn insn, |
680 | TCGReg rd, TCGReg rn, intptr_t offset) | |
4a136e0a | 681 | { |
3d4299f4 RH |
682 | TCGMemOp size = (uint32_t)insn >> 30; |
683 | ||
3d4299f4 RH |
684 | /* If the offset is naturally aligned and in range, then we can |
685 | use the scaled uimm12 encoding */ | |
686 | if (offset >= 0 && !(offset & ((1 << size) - 1))) { | |
687 | uintptr_t scaled_uimm = offset >> size; | |
688 | if (scaled_uimm <= 0xfff) { | |
689 | tcg_out_insn_3313(s, insn, rd, rn, scaled_uimm); | |
690 | return; | |
b1f6dc0d CF |
691 | } |
692 | } | |
693 | ||
a056c9fa RH |
694 | /* Small signed offsets can use the unscaled encoding. */ |
695 | if (offset >= -256 && offset < 256) { | |
696 | tcg_out_insn_3312(s, insn, rd, rn, offset); | |
697 | return; | |
698 | } | |
699 | ||
3d4299f4 | 700 | /* Worst-case scenario, move offset to temp register, use reg offset. */ |
b1f6dc0d | 701 | tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_TMP, offset); |
6c0f0c0f | 702 | tcg_out_ldst_r(s, insn, rd, rn, TCG_TYPE_I64, TCG_REG_TMP); |
4a136e0a CF |
703 | } |
704 | ||
4a136e0a CF |
705 | static inline void tcg_out_mov(TCGContext *s, |
706 | TCGType type, TCGReg ret, TCGReg arg) | |
707 | { | |
708 | if (ret != arg) { | |
929f8b55 | 709 | tcg_out_movr(s, type, ret, arg); |
4a136e0a CF |
710 | } |
711 | } | |
712 | ||
713 | static inline void tcg_out_ld(TCGContext *s, TCGType type, TCGReg arg, | |
a05b5b9b | 714 | TCGReg arg1, intptr_t arg2) |
4a136e0a | 715 | { |
3d4299f4 | 716 | tcg_out_ldst(s, type == TCG_TYPE_I32 ? I3312_LDRW : I3312_LDRX, |
4a136e0a CF |
717 | arg, arg1, arg2); |
718 | } | |
719 | ||
720 | static inline void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg, | |
a05b5b9b | 721 | TCGReg arg1, intptr_t arg2) |
4a136e0a | 722 | { |
3d4299f4 | 723 | tcg_out_ldst(s, type == TCG_TYPE_I32 ? I3312_STRW : I3312_STRX, |
4a136e0a CF |
724 | arg, arg1, arg2); |
725 | } | |
726 | ||
59d7c14e RH |
727 | static inline bool tcg_out_sti(TCGContext *s, TCGType type, TCGArg val, |
728 | TCGReg base, intptr_t ofs) | |
729 | { | |
730 | if (val == 0) { | |
731 | tcg_out_st(s, type, TCG_REG_XZR, base, ofs); | |
732 | return true; | |
733 | } | |
734 | return false; | |
735 | } | |
736 | ||
b3c56df7 RH |
737 | static inline void tcg_out_bfm(TCGContext *s, TCGType ext, TCGReg rd, |
738 | TCGReg rn, unsigned int a, unsigned int b) | |
739 | { | |
740 | tcg_out_insn(s, 3402, BFM, ext, rd, rn, ext, a, b); | |
741 | } | |
742 | ||
7763ffa0 RH |
743 | static inline void tcg_out_ubfm(TCGContext *s, TCGType ext, TCGReg rd, |
744 | TCGReg rn, unsigned int a, unsigned int b) | |
4a136e0a | 745 | { |
b3c56df7 | 746 | tcg_out_insn(s, 3402, UBFM, ext, rd, rn, ext, a, b); |
4a136e0a CF |
747 | } |
748 | ||
7763ffa0 RH |
749 | static inline void tcg_out_sbfm(TCGContext *s, TCGType ext, TCGReg rd, |
750 | TCGReg rn, unsigned int a, unsigned int b) | |
4a136e0a | 751 | { |
b3c56df7 | 752 | tcg_out_insn(s, 3402, SBFM, ext, rd, rn, ext, a, b); |
4a136e0a CF |
753 | } |
754 | ||
7763ffa0 | 755 | static inline void tcg_out_extr(TCGContext *s, TCGType ext, TCGReg rd, |
4a136e0a CF |
756 | TCGReg rn, TCGReg rm, unsigned int a) |
757 | { | |
b3c56df7 | 758 | tcg_out_insn(s, 3403, EXTR, ext, rd, rn, rm, a); |
4a136e0a CF |
759 | } |
760 | ||
7763ffa0 | 761 | static inline void tcg_out_shl(TCGContext *s, TCGType ext, |
4a136e0a CF |
762 | TCGReg rd, TCGReg rn, unsigned int m) |
763 | { | |
b3c56df7 RH |
764 | int bits = ext ? 64 : 32; |
765 | int max = bits - 1; | |
4a136e0a CF |
766 | tcg_out_ubfm(s, ext, rd, rn, bits - (m & max), max - (m & max)); |
767 | } | |
768 | ||
7763ffa0 | 769 | static inline void tcg_out_shr(TCGContext *s, TCGType ext, |
4a136e0a CF |
770 | TCGReg rd, TCGReg rn, unsigned int m) |
771 | { | |
772 | int max = ext ? 63 : 31; | |
773 | tcg_out_ubfm(s, ext, rd, rn, m & max, max); | |
774 | } | |
775 | ||
7763ffa0 | 776 | static inline void tcg_out_sar(TCGContext *s, TCGType ext, |
4a136e0a CF |
777 | TCGReg rd, TCGReg rn, unsigned int m) |
778 | { | |
779 | int max = ext ? 63 : 31; | |
780 | tcg_out_sbfm(s, ext, rd, rn, m & max, max); | |
781 | } | |
782 | ||
7763ffa0 | 783 | static inline void tcg_out_rotr(TCGContext *s, TCGType ext, |
4a136e0a CF |
784 | TCGReg rd, TCGReg rn, unsigned int m) |
785 | { | |
786 | int max = ext ? 63 : 31; | |
787 | tcg_out_extr(s, ext, rd, rn, rn, m & max); | |
788 | } | |
789 | ||
7763ffa0 | 790 | static inline void tcg_out_rotl(TCGContext *s, TCGType ext, |
4a136e0a CF |
791 | TCGReg rd, TCGReg rn, unsigned int m) |
792 | { | |
b3c56df7 RH |
793 | int bits = ext ? 64 : 32; |
794 | int max = bits - 1; | |
4a136e0a CF |
795 | tcg_out_extr(s, ext, rd, rn, rn, bits - (m & max)); |
796 | } | |
797 | ||
b3c56df7 RH |
798 | static inline void tcg_out_dep(TCGContext *s, TCGType ext, TCGReg rd, |
799 | TCGReg rn, unsigned lsb, unsigned width) | |
800 | { | |
801 | unsigned size = ext ? 64 : 32; | |
802 | unsigned a = (size - lsb) & (size - 1); | |
803 | unsigned b = width - 1; | |
804 | tcg_out_bfm(s, ext, rd, rn, a, b); | |
805 | } | |
806 | ||
90f1cd91 RH |
807 | static void tcg_out_cmp(TCGContext *s, TCGType ext, TCGReg a, |
808 | tcg_target_long b, bool const_b) | |
4a136e0a | 809 | { |
90f1cd91 RH |
810 | if (const_b) { |
811 | /* Using CMP or CMN aliases. */ | |
812 | if (b >= 0) { | |
813 | tcg_out_insn(s, 3401, SUBSI, ext, TCG_REG_XZR, a, b); | |
814 | } else { | |
815 | tcg_out_insn(s, 3401, ADDSI, ext, TCG_REG_XZR, a, -b); | |
816 | } | |
817 | } else { | |
818 | /* Using CMP alias SUBS wzr, Wn, Wm */ | |
819 | tcg_out_insn(s, 3502, SUBS, ext, TCG_REG_XZR, a, b); | |
820 | } | |
4a136e0a CF |
821 | } |
822 | ||
8587c30c | 823 | static inline void tcg_out_goto(TCGContext *s, tcg_insn_unit *target) |
4a136e0a | 824 | { |
8587c30c | 825 | ptrdiff_t offset = target - s->code_ptr; |
eabb7b91 | 826 | tcg_debug_assert(offset == sextract64(offset, 0, 26)); |
81d8a5ee | 827 | tcg_out_insn(s, 3206, B, offset); |
4a136e0a CF |
828 | } |
829 | ||
23b7aa1d PK |
830 | static inline void tcg_out_goto_long(TCGContext *s, tcg_insn_unit *target) |
831 | { | |
832 | ptrdiff_t offset = target - s->code_ptr; | |
833 | if (offset == sextract64(offset, 0, 26)) { | |
834 | tcg_out_insn(s, 3206, BL, offset); | |
835 | } else { | |
836 | tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_TMP, (intptr_t)target); | |
837 | tcg_out_insn(s, 3207, BR, TCG_REG_TMP); | |
838 | } | |
839 | } | |
840 | ||
4a136e0a CF |
841 | static inline void tcg_out_goto_noaddr(TCGContext *s) |
842 | { | |
81d8a5ee RH |
843 | /* We pay attention here to not modify the branch target by reading from |
844 | the buffer. This ensure that caches and memory are kept coherent during | |
845 | retranslation. Mask away possible garbage in the high bits for the | |
846 | first translation, while keeping the offset bits for retranslation. */ | |
847 | uint32_t old = tcg_in32(s); | |
848 | tcg_out_insn(s, 3206, B, old); | |
4a136e0a CF |
849 | } |
850 | ||
851 | static inline void tcg_out_goto_cond_noaddr(TCGContext *s, TCGCond c) | |
852 | { | |
81d8a5ee RH |
853 | /* See comments in tcg_out_goto_noaddr. */ |
854 | uint32_t old = tcg_in32(s) >> 5; | |
855 | tcg_out_insn(s, 3202, B_C, c, old); | |
4a136e0a CF |
856 | } |
857 | ||
4a136e0a CF |
858 | static inline void tcg_out_callr(TCGContext *s, TCGReg reg) |
859 | { | |
81d8a5ee | 860 | tcg_out_insn(s, 3207, BLR, reg); |
4a136e0a CF |
861 | } |
862 | ||
8587c30c | 863 | static inline void tcg_out_call(TCGContext *s, tcg_insn_unit *target) |
4a136e0a | 864 | { |
8587c30c RH |
865 | ptrdiff_t offset = target - s->code_ptr; |
866 | if (offset == sextract64(offset, 0, 26)) { | |
81d8a5ee | 867 | tcg_out_insn(s, 3206, BL, offset); |
8587c30c RH |
868 | } else { |
869 | tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_TMP, (intptr_t)target); | |
870 | tcg_out_callr(s, TCG_REG_TMP); | |
4a136e0a CF |
871 | } |
872 | } | |
873 | ||
2acee8b2 PK |
874 | #ifdef USE_DIRECT_JUMP |
875 | ||
4a136e0a CF |
876 | void aarch64_tb_set_jmp_target(uintptr_t jmp_addr, uintptr_t addr) |
877 | { | |
b68686bd PK |
878 | tcg_insn_unit i1, i2; |
879 | TCGType rt = TCG_TYPE_I64; | |
880 | TCGReg rd = TCG_REG_TMP; | |
881 | uint64_t pair; | |
4a136e0a | 882 | |
b68686bd PK |
883 | ptrdiff_t offset = addr - jmp_addr; |
884 | ||
885 | if (offset == sextract64(offset, 0, 26)) { | |
886 | i1 = I3206_B | ((offset >> 2) & 0x3ffffff); | |
887 | i2 = NOP; | |
888 | } else { | |
889 | offset = (addr >> 12) - (jmp_addr >> 12); | |
890 | ||
891 | /* patch ADRP */ | |
892 | i1 = I3406_ADRP | (offset & 3) << 29 | (offset & 0x1ffffc) << (5 - 2) | rd; | |
893 | /* patch ADDI */ | |
894 | i2 = I3401_ADDI | rt << 31 | (addr & 0xfff) << 10 | rd << 5 | rd; | |
895 | } | |
896 | pair = (uint64_t)i2 << 32 | i1; | |
897 | atomic_set((uint64_t *)jmp_addr, pair); | |
898 | flush_icache_range(jmp_addr, jmp_addr + 8); | |
4a136e0a CF |
899 | } |
900 | ||
2acee8b2 PK |
901 | #endif |
902 | ||
bec16311 | 903 | static inline void tcg_out_goto_label(TCGContext *s, TCGLabel *l) |
4a136e0a | 904 | { |
4a136e0a | 905 | if (!l->has_value) { |
bec16311 | 906 | tcg_out_reloc(s, s->code_ptr, R_AARCH64_JUMP26, l, 0); |
4a136e0a CF |
907 | tcg_out_goto_noaddr(s); |
908 | } else { | |
8587c30c | 909 | tcg_out_goto(s, l->u.value_ptr); |
4a136e0a CF |
910 | } |
911 | } | |
912 | ||
dc1eccd6 | 913 | static void tcg_out_brcond(TCGContext *s, TCGType ext, TCGCond c, TCGArg a, |
bec16311 | 914 | TCGArg b, bool b_const, TCGLabel *l) |
4a136e0a | 915 | { |
cae1f6f3 | 916 | intptr_t offset; |
3d9e69a2 | 917 | bool need_cmp; |
cae1f6f3 | 918 | |
3d9e69a2 RH |
919 | if (b_const && b == 0 && (c == TCG_COND_EQ || c == TCG_COND_NE)) { |
920 | need_cmp = false; | |
921 | } else { | |
922 | need_cmp = true; | |
923 | tcg_out_cmp(s, ext, a, b, b_const); | |
924 | } | |
4a136e0a CF |
925 | |
926 | if (!l->has_value) { | |
bec16311 | 927 | tcg_out_reloc(s, s->code_ptr, R_AARCH64_CONDBR19, l, 0); |
cae1f6f3 | 928 | offset = tcg_in32(s) >> 5; |
4a136e0a | 929 | } else { |
8587c30c | 930 | offset = l->u.value_ptr - s->code_ptr; |
eabb7b91 | 931 | tcg_debug_assert(offset == sextract64(offset, 0, 19)); |
4a136e0a | 932 | } |
cae1f6f3 | 933 | |
3d9e69a2 RH |
934 | if (need_cmp) { |
935 | tcg_out_insn(s, 3202, B_C, c, offset); | |
936 | } else if (c == TCG_COND_EQ) { | |
937 | tcg_out_insn(s, 3201, CBZ, ext, a, offset); | |
938 | } else { | |
939 | tcg_out_insn(s, 3201, CBNZ, ext, a, offset); | |
940 | } | |
4a136e0a CF |
941 | } |
942 | ||
edd8824c | 943 | static inline void tcg_out_rev64(TCGContext *s, TCGReg rd, TCGReg rn) |
9c4a059d | 944 | { |
edd8824c | 945 | tcg_out_insn(s, 3507, REV64, TCG_TYPE_I64, rd, rn); |
9c4a059d CF |
946 | } |
947 | ||
edd8824c | 948 | static inline void tcg_out_rev32(TCGContext *s, TCGReg rd, TCGReg rn) |
9c4a059d | 949 | { |
edd8824c RH |
950 | tcg_out_insn(s, 3507, REV32, TCG_TYPE_I32, rd, rn); |
951 | } | |
952 | ||
953 | static inline void tcg_out_rev16(TCGContext *s, TCGReg rd, TCGReg rn) | |
954 | { | |
955 | tcg_out_insn(s, 3507, REV16, TCG_TYPE_I32, rd, rn); | |
9c4a059d CF |
956 | } |
957 | ||
929f8b55 | 958 | static inline void tcg_out_sxt(TCGContext *s, TCGType ext, TCGMemOp s_bits, |
31f1275b CF |
959 | TCGReg rd, TCGReg rn) |
960 | { | |
b3c56df7 | 961 | /* Using ALIASes SXTB, SXTH, SXTW, of SBFM Xd, Xn, #0, #7|15|31 */ |
929f8b55 | 962 | int bits = (8 << s_bits) - 1; |
31f1275b CF |
963 | tcg_out_sbfm(s, ext, rd, rn, 0, bits); |
964 | } | |
965 | ||
929f8b55 | 966 | static inline void tcg_out_uxt(TCGContext *s, TCGMemOp s_bits, |
31f1275b CF |
967 | TCGReg rd, TCGReg rn) |
968 | { | |
b3c56df7 | 969 | /* Using ALIASes UXTB, UXTH of UBFM Wd, Wn, #0, #7|15 */ |
929f8b55 | 970 | int bits = (8 << s_bits) - 1; |
31f1275b CF |
971 | tcg_out_ubfm(s, 0, rd, rn, 0, bits); |
972 | } | |
973 | ||
90f1cd91 RH |
974 | static void tcg_out_addsubi(TCGContext *s, int ext, TCGReg rd, |
975 | TCGReg rn, int64_t aimm) | |
976 | { | |
977 | if (aimm >= 0) { | |
978 | tcg_out_insn(s, 3401, ADDI, ext, rd, rn, aimm); | |
979 | } else { | |
980 | tcg_out_insn(s, 3401, SUBI, ext, rd, rn, -aimm); | |
981 | } | |
982 | } | |
983 | ||
dc1eccd6 | 984 | static inline void tcg_out_addsub2(TCGContext *s, TCGType ext, TCGReg rl, |
c6e929e7 RH |
985 | TCGReg rh, TCGReg al, TCGReg ah, |
986 | tcg_target_long bl, tcg_target_long bh, | |
987 | bool const_bl, bool const_bh, bool sub) | |
988 | { | |
989 | TCGReg orig_rl = rl; | |
990 | AArch64Insn insn; | |
991 | ||
992 | if (rl == ah || (!const_bh && rl == bh)) { | |
993 | rl = TCG_REG_TMP; | |
994 | } | |
995 | ||
996 | if (const_bl) { | |
997 | insn = I3401_ADDSI; | |
998 | if ((bl < 0) ^ sub) { | |
999 | insn = I3401_SUBSI; | |
1000 | bl = -bl; | |
1001 | } | |
b1eb20da RH |
1002 | if (unlikely(al == TCG_REG_XZR)) { |
1003 | /* ??? We want to allow al to be zero for the benefit of | |
1004 | negation via subtraction. However, that leaves open the | |
1005 | possibility of adding 0+const in the low part, and the | |
1006 | immediate add instructions encode XSP not XZR. Don't try | |
1007 | anything more elaborate here than loading another zero. */ | |
1008 | al = TCG_REG_TMP; | |
1009 | tcg_out_movi(s, ext, al, 0); | |
1010 | } | |
c6e929e7 RH |
1011 | tcg_out_insn_3401(s, insn, ext, rl, al, bl); |
1012 | } else { | |
1013 | tcg_out_insn_3502(s, sub ? I3502_SUBS : I3502_ADDS, ext, rl, al, bl); | |
1014 | } | |
1015 | ||
1016 | insn = I3503_ADC; | |
1017 | if (const_bh) { | |
1018 | /* Note that the only two constants we support are 0 and -1, and | |
1019 | that SBC = rn + ~rm + c, so adc -1 is sbc 0, and vice-versa. */ | |
1020 | if ((bh != 0) ^ sub) { | |
1021 | insn = I3503_SBC; | |
1022 | } | |
1023 | bh = TCG_REG_XZR; | |
1024 | } else if (sub) { | |
1025 | insn = I3503_SBC; | |
1026 | } | |
1027 | tcg_out_insn_3503(s, insn, ext, rh, ah, bh); | |
1028 | ||
b825025f | 1029 | tcg_out_mov(s, ext, orig_rl, rl); |
c6e929e7 RH |
1030 | } |
1031 | ||
c7a59c2a PK |
1032 | static inline void tcg_out_mb(TCGContext *s, TCGArg a0) |
1033 | { | |
1034 | static const uint32_t sync[] = { | |
1035 | [0 ... TCG_MO_ALL] = DMB_ISH | DMB_LD | DMB_ST, | |
1036 | [TCG_MO_ST_ST] = DMB_ISH | DMB_ST, | |
1037 | [TCG_MO_LD_LD] = DMB_ISH | DMB_LD, | |
1038 | [TCG_MO_LD_ST] = DMB_ISH | DMB_LD, | |
1039 | [TCG_MO_LD_ST | TCG_MO_LD_LD] = DMB_ISH | DMB_LD, | |
1040 | }; | |
1041 | tcg_out32(s, sync[a0 & TCG_MO_ALL]); | |
1042 | } | |
1043 | ||
53c76c19 RH |
1044 | static void tcg_out_cltz(TCGContext *s, TCGType ext, TCGReg d, |
1045 | TCGReg a0, TCGArg b, bool const_b, bool is_ctz) | |
1046 | { | |
1047 | TCGReg a1 = a0; | |
1048 | if (is_ctz) { | |
1049 | a1 = TCG_REG_TMP; | |
1050 | tcg_out_insn(s, 3507, RBIT, ext, a1, a0); | |
1051 | } | |
1052 | if (const_b && b == (ext ? 64 : 32)) { | |
1053 | tcg_out_insn(s, 3507, CLZ, ext, d, a1); | |
1054 | } else { | |
1055 | AArch64Insn sel = I3506_CSEL; | |
1056 | ||
1057 | tcg_out_cmp(s, ext, a0, 0, 1); | |
1058 | tcg_out_insn(s, 3507, CLZ, ext, TCG_REG_TMP, a1); | |
1059 | ||
1060 | if (const_b) { | |
1061 | if (b == -1) { | |
1062 | b = TCG_REG_XZR; | |
1063 | sel = I3506_CSINV; | |
1064 | } else if (b == 0) { | |
1065 | b = TCG_REG_XZR; | |
1066 | } else { | |
1067 | tcg_out_movi(s, ext, d, b); | |
1068 | b = d; | |
1069 | } | |
1070 | } | |
1071 | tcg_out_insn_3506(s, sel, ext, d, TCG_REG_TMP, b, TCG_COND_NE); | |
1072 | } | |
1073 | } | |
1074 | ||
4a136e0a | 1075 | #ifdef CONFIG_SOFTMMU |
023261ef | 1076 | /* helper signature: helper_ret_ld_mmu(CPUState *env, target_ulong addr, |
3972ef6f | 1077 | * TCGMemOpIdx oi, uintptr_t ra) |
023261ef | 1078 | */ |
8587c30c | 1079 | static void * const qemu_ld_helpers[16] = { |
de61d14f RH |
1080 | [MO_UB] = helper_ret_ldub_mmu, |
1081 | [MO_LEUW] = helper_le_lduw_mmu, | |
1082 | [MO_LEUL] = helper_le_ldul_mmu, | |
1083 | [MO_LEQ] = helper_le_ldq_mmu, | |
1084 | [MO_BEUW] = helper_be_lduw_mmu, | |
1085 | [MO_BEUL] = helper_be_ldul_mmu, | |
1086 | [MO_BEQ] = helper_be_ldq_mmu, | |
4a136e0a CF |
1087 | }; |
1088 | ||
023261ef | 1089 | /* helper signature: helper_ret_st_mmu(CPUState *env, target_ulong addr, |
3972ef6f RH |
1090 | * uintxx_t val, TCGMemOpIdx oi, |
1091 | * uintptr_t ra) | |
023261ef | 1092 | */ |
8587c30c | 1093 | static void * const qemu_st_helpers[16] = { |
de61d14f RH |
1094 | [MO_UB] = helper_ret_stb_mmu, |
1095 | [MO_LEUW] = helper_le_stw_mmu, | |
1096 | [MO_LEUL] = helper_le_stl_mmu, | |
1097 | [MO_LEQ] = helper_le_stq_mmu, | |
1098 | [MO_BEUW] = helper_be_stw_mmu, | |
1099 | [MO_BEUL] = helper_be_stl_mmu, | |
1100 | [MO_BEQ] = helper_be_stq_mmu, | |
4a136e0a CF |
1101 | }; |
1102 | ||
8587c30c | 1103 | static inline void tcg_out_adr(TCGContext *s, TCGReg rd, void *target) |
dc0c8aaf | 1104 | { |
8587c30c | 1105 | ptrdiff_t offset = tcg_pcrel_diff(s, target); |
eabb7b91 | 1106 | tcg_debug_assert(offset == sextract64(offset, 0, 21)); |
8587c30c | 1107 | tcg_out_insn(s, 3406, ADR, rd, offset); |
dc0c8aaf RH |
1108 | } |
1109 | ||
c6d8ed24 JK |
1110 | static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) |
1111 | { | |
3972ef6f RH |
1112 | TCGMemOpIdx oi = lb->oi; |
1113 | TCGMemOp opc = get_memop(oi); | |
929f8b55 RH |
1114 | TCGMemOp size = opc & MO_SIZE; |
1115 | ||
8587c30c | 1116 | reloc_pc19(lb->label_ptr[0], s->code_ptr); |
017a86f7 | 1117 | |
3972ef6f | 1118 | tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_X0, TCG_AREG0); |
b825025f | 1119 | tcg_out_mov(s, TARGET_LONG_BITS == 64, TCG_REG_X1, lb->addrlo_reg); |
3972ef6f | 1120 | tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_X2, oi); |
8587c30c | 1121 | tcg_out_adr(s, TCG_REG_X3, lb->raddr); |
2b7ec66f | 1122 | tcg_out_call(s, qemu_ld_helpers[opc & (MO_BSWAP | MO_SIZE)]); |
929f8b55 | 1123 | if (opc & MO_SIGN) { |
9c53889b | 1124 | tcg_out_sxt(s, lb->type, size, lb->datalo_reg, TCG_REG_X0); |
c6d8ed24 | 1125 | } else { |
b825025f | 1126 | tcg_out_mov(s, size == MO_64, lb->datalo_reg, TCG_REG_X0); |
c6d8ed24 JK |
1127 | } |
1128 | ||
8587c30c | 1129 | tcg_out_goto(s, lb->raddr); |
c6d8ed24 JK |
1130 | } |
1131 | ||
1132 | static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) | |
1133 | { | |
3972ef6f RH |
1134 | TCGMemOpIdx oi = lb->oi; |
1135 | TCGMemOp opc = get_memop(oi); | |
de61d14f | 1136 | TCGMemOp size = opc & MO_SIZE; |
929f8b55 | 1137 | |
8587c30c | 1138 | reloc_pc19(lb->label_ptr[0], s->code_ptr); |
c6d8ed24 | 1139 | |
3972ef6f | 1140 | tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_X0, TCG_AREG0); |
b825025f RH |
1141 | tcg_out_mov(s, TARGET_LONG_BITS == 64, TCG_REG_X1, lb->addrlo_reg); |
1142 | tcg_out_mov(s, size == MO_64, TCG_REG_X2, lb->datalo_reg); | |
3972ef6f | 1143 | tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_X3, oi); |
8587c30c | 1144 | tcg_out_adr(s, TCG_REG_X4, lb->raddr); |
2b7ec66f | 1145 | tcg_out_call(s, qemu_st_helpers[opc & (MO_BSWAP | MO_SIZE)]); |
8587c30c | 1146 | tcg_out_goto(s, lb->raddr); |
c6d8ed24 JK |
1147 | } |
1148 | ||
3972ef6f | 1149 | static void add_qemu_ldst_label(TCGContext *s, bool is_ld, TCGMemOpIdx oi, |
9c53889b | 1150 | TCGType ext, TCGReg data_reg, TCGReg addr_reg, |
3972ef6f | 1151 | tcg_insn_unit *raddr, tcg_insn_unit *label_ptr) |
c6d8ed24 | 1152 | { |
9ecefc84 | 1153 | TCGLabelQemuLdst *label = new_ldst_label(s); |
c6d8ed24 | 1154 | |
c6d8ed24 | 1155 | label->is_ld = is_ld; |
3972ef6f | 1156 | label->oi = oi; |
9c53889b | 1157 | label->type = ext; |
c6d8ed24 JK |
1158 | label->datalo_reg = data_reg; |
1159 | label->addrlo_reg = addr_reg; | |
c6d8ed24 JK |
1160 | label->raddr = raddr; |
1161 | label->label_ptr[0] = label_ptr; | |
1162 | } | |
1163 | ||
1164 | /* Load and compare a TLB entry, emitting the conditional jump to the | |
1165 | slow path for the failure case, which will be patched later when finalizing | |
1166 | the slow path. Generated code returns the host addend in X1, | |
1167 | clobbers X0,X2,X3,TMP. */ | |
9ee14902 | 1168 | static void tcg_out_tlb_read(TCGContext *s, TCGReg addr_reg, TCGMemOp opc, |
8587c30c RH |
1169 | tcg_insn_unit **label_ptr, int mem_index, |
1170 | bool is_read) | |
c6d8ed24 | 1171 | { |
c6d8ed24 JK |
1172 | int tlb_offset = is_read ? |
1173 | offsetof(CPUArchState, tlb_table[mem_index][0].addr_read) | |
1174 | : offsetof(CPUArchState, tlb_table[mem_index][0].addr_write); | |
85aa8081 RH |
1175 | unsigned a_bits = get_alignment_bits(opc); |
1176 | unsigned s_bits = opc & MO_SIZE; | |
1177 | unsigned a_mask = (1u << a_bits) - 1; | |
1178 | unsigned s_mask = (1u << s_bits) - 1; | |
9ee14902 RH |
1179 | TCGReg base = TCG_AREG0, x3; |
1180 | uint64_t tlb_mask; | |
1181 | ||
1182 | /* For aligned accesses, we check the first byte and include the alignment | |
1183 | bits within the address. For unaligned access, we check that we don't | |
1184 | cross pages using the address of the last byte of the access. */ | |
85aa8081 | 1185 | if (a_bits >= s_bits) { |
9ee14902 RH |
1186 | x3 = addr_reg; |
1187 | } else { | |
1188 | tcg_out_insn(s, 3401, ADDI, TARGET_LONG_BITS == 64, | |
85aa8081 | 1189 | TCG_REG_X3, addr_reg, s_mask - a_mask); |
9ee14902 RH |
1190 | x3 = TCG_REG_X3; |
1191 | } | |
85aa8081 | 1192 | tlb_mask = (uint64_t)TARGET_PAGE_MASK | a_mask; |
6f472467 | 1193 | |
c6d8ed24 JK |
1194 | /* Extract the TLB index from the address into X0. |
1195 | X0<CPU_TLB_BITS:0> = | |
1196 | addr_reg<TARGET_PAGE_BITS+CPU_TLB_BITS:TARGET_PAGE_BITS> */ | |
6f472467 | 1197 | tcg_out_ubfm(s, TARGET_LONG_BITS == 64, TCG_REG_X0, addr_reg, |
c6d8ed24 | 1198 | TARGET_PAGE_BITS, TARGET_PAGE_BITS + CPU_TLB_BITS); |
6f472467 | 1199 | |
9ee14902 RH |
1200 | /* Store the page mask part of the address into X3. */ |
1201 | tcg_out_logicali(s, I3404_ANDI, TARGET_LONG_BITS == 64, | |
1202 | TCG_REG_X3, x3, tlb_mask); | |
6f472467 | 1203 | |
c6d8ed24 | 1204 | /* Add any "high bits" from the tlb offset to the env address into X2, |
096c46c0 | 1205 | to take advantage of the LSL12 form of the ADDI instruction. |
c6d8ed24 | 1206 | X2 = env + (tlb_offset & 0xfff000) */ |
6f472467 RH |
1207 | if (tlb_offset & 0xfff000) { |
1208 | tcg_out_insn(s, 3401, ADDI, TCG_TYPE_I64, TCG_REG_X2, base, | |
1209 | tlb_offset & 0xfff000); | |
1210 | base = TCG_REG_X2; | |
1211 | } | |
1212 | ||
c6d8ed24 JK |
1213 | /* Merge the tlb index contribution into X2. |
1214 | X2 = X2 + (X0 << CPU_TLB_ENTRY_BITS) */ | |
6f472467 | 1215 | tcg_out_insn(s, 3502S, ADD_LSL, TCG_TYPE_I64, TCG_REG_X2, base, |
50573c66 | 1216 | TCG_REG_X0, CPU_TLB_ENTRY_BITS); |
6f472467 | 1217 | |
c6d8ed24 JK |
1218 | /* Merge "low bits" from tlb offset, load the tlb comparator into X0. |
1219 | X0 = load [X2 + (tlb_offset & 0x000fff)] */ | |
3d4299f4 RH |
1220 | tcg_out_ldst(s, TARGET_LONG_BITS == 32 ? I3312_LDRW : I3312_LDRX, |
1221 | TCG_REG_X0, TCG_REG_X2, tlb_offset & 0xfff); | |
6f472467 | 1222 | |
c6d8ed24 JK |
1223 | /* Load the tlb addend. Do that early to avoid stalling. |
1224 | X1 = load [X2 + (tlb_offset & 0xfff) + offsetof(addend)] */ | |
3d4299f4 | 1225 | tcg_out_ldst(s, I3312_LDRX, TCG_REG_X1, TCG_REG_X2, |
c6d8ed24 JK |
1226 | (tlb_offset & 0xfff) + (offsetof(CPUTLBEntry, addend)) - |
1227 | (is_read ? offsetof(CPUTLBEntry, addr_read) | |
1228 | : offsetof(CPUTLBEntry, addr_write))); | |
6f472467 | 1229 | |
c6d8ed24 | 1230 | /* Perform the address comparison. */ |
90f1cd91 | 1231 | tcg_out_cmp(s, (TARGET_LONG_BITS == 64), TCG_REG_X0, TCG_REG_X3, 0); |
6f472467 | 1232 | |
c6d8ed24 | 1233 | /* If not equal, we jump to the slow path. */ |
6f472467 | 1234 | *label_ptr = s->code_ptr; |
c6d8ed24 JK |
1235 | tcg_out_goto_cond_noaddr(s, TCG_COND_NE); |
1236 | } | |
1237 | ||
1238 | #endif /* CONFIG_SOFTMMU */ | |
6a91c7c9 | 1239 | |
9c53889b | 1240 | static void tcg_out_qemu_ld_direct(TCGContext *s, TCGMemOp memop, TCGType ext, |
ffc63728 PB |
1241 | TCGReg data_r, TCGReg addr_r, |
1242 | TCGType otype, TCGReg off_r) | |
6a91c7c9 | 1243 | { |
9e4177ad RH |
1244 | const TCGMemOp bswap = memop & MO_BSWAP; |
1245 | ||
1246 | switch (memop & MO_SSIZE) { | |
1247 | case MO_UB: | |
6c0f0c0f | 1248 | tcg_out_ldst_r(s, I3312_LDRB, data_r, addr_r, otype, off_r); |
6a91c7c9 | 1249 | break; |
9e4177ad | 1250 | case MO_SB: |
9c53889b | 1251 | tcg_out_ldst_r(s, ext ? I3312_LDRSBX : I3312_LDRSBW, |
6c0f0c0f | 1252 | data_r, addr_r, otype, off_r); |
6a91c7c9 | 1253 | break; |
9e4177ad | 1254 | case MO_UW: |
6c0f0c0f | 1255 | tcg_out_ldst_r(s, I3312_LDRH, data_r, addr_r, otype, off_r); |
9e4177ad | 1256 | if (bswap) { |
edd8824c | 1257 | tcg_out_rev16(s, data_r, data_r); |
6a91c7c9 JK |
1258 | } |
1259 | break; | |
9e4177ad RH |
1260 | case MO_SW: |
1261 | if (bswap) { | |
6c0f0c0f | 1262 | tcg_out_ldst_r(s, I3312_LDRH, data_r, addr_r, otype, off_r); |
edd8824c | 1263 | tcg_out_rev16(s, data_r, data_r); |
9c53889b | 1264 | tcg_out_sxt(s, ext, MO_16, data_r, data_r); |
6a91c7c9 | 1265 | } else { |
6c0f0c0f PB |
1266 | tcg_out_ldst_r(s, (ext ? I3312_LDRSHX : I3312_LDRSHW), |
1267 | data_r, addr_r, otype, off_r); | |
6a91c7c9 JK |
1268 | } |
1269 | break; | |
9e4177ad | 1270 | case MO_UL: |
6c0f0c0f | 1271 | tcg_out_ldst_r(s, I3312_LDRW, data_r, addr_r, otype, off_r); |
9e4177ad | 1272 | if (bswap) { |
edd8824c | 1273 | tcg_out_rev32(s, data_r, data_r); |
6a91c7c9 JK |
1274 | } |
1275 | break; | |
9e4177ad RH |
1276 | case MO_SL: |
1277 | if (bswap) { | |
6c0f0c0f | 1278 | tcg_out_ldst_r(s, I3312_LDRW, data_r, addr_r, otype, off_r); |
edd8824c | 1279 | tcg_out_rev32(s, data_r, data_r); |
929f8b55 | 1280 | tcg_out_sxt(s, TCG_TYPE_I64, MO_32, data_r, data_r); |
6a91c7c9 | 1281 | } else { |
6c0f0c0f | 1282 | tcg_out_ldst_r(s, I3312_LDRSWX, data_r, addr_r, otype, off_r); |
6a91c7c9 JK |
1283 | } |
1284 | break; | |
9e4177ad | 1285 | case MO_Q: |
6c0f0c0f | 1286 | tcg_out_ldst_r(s, I3312_LDRX, data_r, addr_r, otype, off_r); |
9e4177ad | 1287 | if (bswap) { |
edd8824c | 1288 | tcg_out_rev64(s, data_r, data_r); |
6a91c7c9 JK |
1289 | } |
1290 | break; | |
1291 | default: | |
1292 | tcg_abort(); | |
1293 | } | |
1294 | } | |
1295 | ||
9e4177ad | 1296 | static void tcg_out_qemu_st_direct(TCGContext *s, TCGMemOp memop, |
ffc63728 PB |
1297 | TCGReg data_r, TCGReg addr_r, |
1298 | TCGType otype, TCGReg off_r) | |
6a91c7c9 | 1299 | { |
9e4177ad RH |
1300 | const TCGMemOp bswap = memop & MO_BSWAP; |
1301 | ||
1302 | switch (memop & MO_SIZE) { | |
1303 | case MO_8: | |
6c0f0c0f | 1304 | tcg_out_ldst_r(s, I3312_STRB, data_r, addr_r, otype, off_r); |
6a91c7c9 | 1305 | break; |
9e4177ad | 1306 | case MO_16: |
e81864a1 | 1307 | if (bswap && data_r != TCG_REG_XZR) { |
edd8824c | 1308 | tcg_out_rev16(s, TCG_REG_TMP, data_r); |
9e4177ad | 1309 | data_r = TCG_REG_TMP; |
6a91c7c9 | 1310 | } |
6c0f0c0f | 1311 | tcg_out_ldst_r(s, I3312_STRH, data_r, addr_r, otype, off_r); |
6a91c7c9 | 1312 | break; |
9e4177ad | 1313 | case MO_32: |
e81864a1 | 1314 | if (bswap && data_r != TCG_REG_XZR) { |
edd8824c | 1315 | tcg_out_rev32(s, TCG_REG_TMP, data_r); |
9e4177ad | 1316 | data_r = TCG_REG_TMP; |
6a91c7c9 | 1317 | } |
6c0f0c0f | 1318 | tcg_out_ldst_r(s, I3312_STRW, data_r, addr_r, otype, off_r); |
6a91c7c9 | 1319 | break; |
9e4177ad | 1320 | case MO_64: |
e81864a1 | 1321 | if (bswap && data_r != TCG_REG_XZR) { |
edd8824c | 1322 | tcg_out_rev64(s, TCG_REG_TMP, data_r); |
9e4177ad | 1323 | data_r = TCG_REG_TMP; |
6a91c7c9 | 1324 | } |
6c0f0c0f | 1325 | tcg_out_ldst_r(s, I3312_STRX, data_r, addr_r, otype, off_r); |
6a91c7c9 JK |
1326 | break; |
1327 | default: | |
1328 | tcg_abort(); | |
1329 | } | |
1330 | } | |
4a136e0a | 1331 | |
667b1cdd | 1332 | static void tcg_out_qemu_ld(TCGContext *s, TCGReg data_reg, TCGReg addr_reg, |
59227d5d | 1333 | TCGMemOpIdx oi, TCGType ext) |
4a136e0a | 1334 | { |
59227d5d | 1335 | TCGMemOp memop = get_memop(oi); |
80adb8fc | 1336 | const TCGType otype = TARGET_LONG_BITS == 64 ? TCG_TYPE_I64 : TCG_TYPE_I32; |
4a136e0a | 1337 | #ifdef CONFIG_SOFTMMU |
59227d5d | 1338 | unsigned mem_index = get_mmuidx(oi); |
8587c30c | 1339 | tcg_insn_unit *label_ptr; |
4a136e0a | 1340 | |
9ee14902 | 1341 | tcg_out_tlb_read(s, addr_reg, memop, &label_ptr, mem_index, 1); |
80adb8fc RH |
1342 | tcg_out_qemu_ld_direct(s, memop, ext, data_reg, |
1343 | TCG_REG_X1, otype, addr_reg); | |
3972ef6f RH |
1344 | add_qemu_ldst_label(s, true, oi, ext, data_reg, addr_reg, |
1345 | s->code_ptr, label_ptr); | |
4a136e0a | 1346 | #else /* !CONFIG_SOFTMMU */ |
352bcb0a RH |
1347 | if (USE_GUEST_BASE) { |
1348 | tcg_out_qemu_ld_direct(s, memop, ext, data_reg, | |
1349 | TCG_REG_GUEST_BASE, otype, addr_reg); | |
1350 | } else { | |
1351 | tcg_out_qemu_ld_direct(s, memop, ext, data_reg, | |
1352 | addr_reg, TCG_TYPE_I64, TCG_REG_XZR); | |
1353 | } | |
6a91c7c9 | 1354 | #endif /* CONFIG_SOFTMMU */ |
4a136e0a CF |
1355 | } |
1356 | ||
667b1cdd | 1357 | static void tcg_out_qemu_st(TCGContext *s, TCGReg data_reg, TCGReg addr_reg, |
59227d5d | 1358 | TCGMemOpIdx oi) |
4a136e0a | 1359 | { |
59227d5d | 1360 | TCGMemOp memop = get_memop(oi); |
80adb8fc | 1361 | const TCGType otype = TARGET_LONG_BITS == 64 ? TCG_TYPE_I64 : TCG_TYPE_I32; |
4a136e0a | 1362 | #ifdef CONFIG_SOFTMMU |
59227d5d | 1363 | unsigned mem_index = get_mmuidx(oi); |
8587c30c | 1364 | tcg_insn_unit *label_ptr; |
4a136e0a | 1365 | |
9ee14902 | 1366 | tcg_out_tlb_read(s, addr_reg, memop, &label_ptr, mem_index, 0); |
80adb8fc RH |
1367 | tcg_out_qemu_st_direct(s, memop, data_reg, |
1368 | TCG_REG_X1, otype, addr_reg); | |
9ee14902 RH |
1369 | add_qemu_ldst_label(s, false, oi, (memop & MO_SIZE)== MO_64, |
1370 | data_reg, addr_reg, s->code_ptr, label_ptr); | |
4a136e0a | 1371 | #else /* !CONFIG_SOFTMMU */ |
352bcb0a RH |
1372 | if (USE_GUEST_BASE) { |
1373 | tcg_out_qemu_st_direct(s, memop, data_reg, | |
1374 | TCG_REG_GUEST_BASE, otype, addr_reg); | |
1375 | } else { | |
1376 | tcg_out_qemu_st_direct(s, memop, data_reg, | |
1377 | addr_reg, TCG_TYPE_I64, TCG_REG_XZR); | |
1378 | } | |
6a91c7c9 | 1379 | #endif /* CONFIG_SOFTMMU */ |
4a136e0a CF |
1380 | } |
1381 | ||
8587c30c | 1382 | static tcg_insn_unit *tb_ret_addr; |
4a136e0a | 1383 | |
4a136e0a | 1384 | static void tcg_out_op(TCGContext *s, TCGOpcode opc, |
8d8db193 RH |
1385 | const TCGArg args[TCG_MAX_OP_ARGS], |
1386 | const int const_args[TCG_MAX_OP_ARGS]) | |
4a136e0a | 1387 | { |
f0293414 RH |
1388 | /* 99% of the time, we can signal the use of extension registers |
1389 | by looking to see if the opcode handles 64-bit data. */ | |
1390 | TCGType ext = (tcg_op_defs[opc].flags & TCG_OPF_64BIT) != 0; | |
4a136e0a | 1391 | |
8d8db193 RH |
1392 | /* Hoist the loads of the most common arguments. */ |
1393 | TCGArg a0 = args[0]; | |
1394 | TCGArg a1 = args[1]; | |
1395 | TCGArg a2 = args[2]; | |
1396 | int c2 = const_args[2]; | |
1397 | ||
04ce397b RH |
1398 | /* Some operands are defined with "rZ" constraint, a register or |
1399 | the zero register. These need not actually test args[I] == 0. */ | |
1400 | #define REG0(I) (const_args[I] ? TCG_REG_XZR : (TCGReg)args[I]) | |
1401 | ||
4a136e0a CF |
1402 | switch (opc) { |
1403 | case INDEX_op_exit_tb: | |
b19f0c2e RH |
1404 | /* Reuse the zeroing that exists for goto_ptr. */ |
1405 | if (a0 == 0) { | |
23b7aa1d | 1406 | tcg_out_goto_long(s, s->code_gen_epilogue); |
b19f0c2e RH |
1407 | } else { |
1408 | tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_X0, a0); | |
23b7aa1d | 1409 | tcg_out_goto_long(s, tb_ret_addr); |
b19f0c2e | 1410 | } |
4a136e0a CF |
1411 | break; |
1412 | ||
1413 | case INDEX_op_goto_tb: | |
2acee8b2 PK |
1414 | if (s->tb_jmp_insn_offset != NULL) { |
1415 | /* USE_DIRECT_JUMP */ | |
1416 | /* Ensure that ADRP+ADD are 8-byte aligned so that an atomic | |
1417 | write can be used to patch the target address. */ | |
1418 | if ((uintptr_t)s->code_ptr & 7) { | |
1419 | tcg_out32(s, NOP); | |
1420 | } | |
1421 | s->tb_jmp_insn_offset[a0] = tcg_current_code_size(s); | |
1422 | /* actual branch destination will be patched by | |
1423 | aarch64_tb_set_jmp_target later. */ | |
1424 | tcg_out_insn(s, 3406, ADRP, TCG_REG_TMP, 0); | |
1425 | tcg_out_insn(s, 3401, ADDI, TCG_TYPE_I64, TCG_REG_TMP, TCG_REG_TMP, 0); | |
1426 | } else { | |
1427 | /* !USE_DIRECT_JUMP */ | |
1428 | tcg_debug_assert(s->tb_jmp_target_addr != NULL); | |
1429 | intptr_t offset = tcg_pcrel_diff(s, (s->tb_jmp_target_addr + a0)) >> 2; | |
1430 | tcg_out_insn(s, 3305, LDR, offset, TCG_REG_TMP); | |
b68686bd | 1431 | } |
b68686bd | 1432 | tcg_out_insn(s, 3207, BR, TCG_REG_TMP); |
f309101c | 1433 | s->tb_jmp_reset_offset[a0] = tcg_current_code_size(s); |
4a136e0a CF |
1434 | break; |
1435 | ||
b19f0c2e RH |
1436 | case INDEX_op_goto_ptr: |
1437 | tcg_out_insn(s, 3207, BR, a0); | |
1438 | break; | |
1439 | ||
4a136e0a | 1440 | case INDEX_op_br: |
bec16311 | 1441 | tcg_out_goto_label(s, arg_label(a0)); |
4a136e0a CF |
1442 | break; |
1443 | ||
4a136e0a | 1444 | case INDEX_op_ld8u_i32: |
4a136e0a | 1445 | case INDEX_op_ld8u_i64: |
3d4299f4 | 1446 | tcg_out_ldst(s, I3312_LDRB, a0, a1, a2); |
dc73dfd4 RH |
1447 | break; |
1448 | case INDEX_op_ld8s_i32: | |
3d4299f4 | 1449 | tcg_out_ldst(s, I3312_LDRSBW, a0, a1, a2); |
dc73dfd4 | 1450 | break; |
4a136e0a | 1451 | case INDEX_op_ld8s_i64: |
3d4299f4 | 1452 | tcg_out_ldst(s, I3312_LDRSBX, a0, a1, a2); |
dc73dfd4 RH |
1453 | break; |
1454 | case INDEX_op_ld16u_i32: | |
4a136e0a | 1455 | case INDEX_op_ld16u_i64: |
3d4299f4 | 1456 | tcg_out_ldst(s, I3312_LDRH, a0, a1, a2); |
dc73dfd4 RH |
1457 | break; |
1458 | case INDEX_op_ld16s_i32: | |
3d4299f4 | 1459 | tcg_out_ldst(s, I3312_LDRSHW, a0, a1, a2); |
dc73dfd4 | 1460 | break; |
4a136e0a | 1461 | case INDEX_op_ld16s_i64: |
3d4299f4 | 1462 | tcg_out_ldst(s, I3312_LDRSHX, a0, a1, a2); |
dc73dfd4 RH |
1463 | break; |
1464 | case INDEX_op_ld_i32: | |
4a136e0a | 1465 | case INDEX_op_ld32u_i64: |
3d4299f4 | 1466 | tcg_out_ldst(s, I3312_LDRW, a0, a1, a2); |
dc73dfd4 | 1467 | break; |
4a136e0a | 1468 | case INDEX_op_ld32s_i64: |
3d4299f4 | 1469 | tcg_out_ldst(s, I3312_LDRSWX, a0, a1, a2); |
e81864a1 | 1470 | break; |
dc73dfd4 | 1471 | case INDEX_op_ld_i64: |
3d4299f4 | 1472 | tcg_out_ldst(s, I3312_LDRX, a0, a1, a2); |
dc73dfd4 RH |
1473 | break; |
1474 | ||
4a136e0a CF |
1475 | case INDEX_op_st8_i32: |
1476 | case INDEX_op_st8_i64: | |
3d4299f4 | 1477 | tcg_out_ldst(s, I3312_STRB, REG0(0), a1, a2); |
dc73dfd4 | 1478 | break; |
4a136e0a CF |
1479 | case INDEX_op_st16_i32: |
1480 | case INDEX_op_st16_i64: | |
3d4299f4 | 1481 | tcg_out_ldst(s, I3312_STRH, REG0(0), a1, a2); |
dc73dfd4 RH |
1482 | break; |
1483 | case INDEX_op_st_i32: | |
4a136e0a | 1484 | case INDEX_op_st32_i64: |
3d4299f4 | 1485 | tcg_out_ldst(s, I3312_STRW, REG0(0), a1, a2); |
dc73dfd4 RH |
1486 | break; |
1487 | case INDEX_op_st_i64: | |
3d4299f4 | 1488 | tcg_out_ldst(s, I3312_STRX, REG0(0), a1, a2); |
4a136e0a CF |
1489 | break; |
1490 | ||
4a136e0a | 1491 | case INDEX_op_add_i32: |
90f1cd91 RH |
1492 | a2 = (int32_t)a2; |
1493 | /* FALLTHRU */ | |
1494 | case INDEX_op_add_i64: | |
1495 | if (c2) { | |
1496 | tcg_out_addsubi(s, ext, a0, a1, a2); | |
1497 | } else { | |
1498 | tcg_out_insn(s, 3502, ADD, ext, a0, a1, a2); | |
1499 | } | |
4a136e0a CF |
1500 | break; |
1501 | ||
4a136e0a | 1502 | case INDEX_op_sub_i32: |
90f1cd91 RH |
1503 | a2 = (int32_t)a2; |
1504 | /* FALLTHRU */ | |
1505 | case INDEX_op_sub_i64: | |
1506 | if (c2) { | |
1507 | tcg_out_addsubi(s, ext, a0, a1, -a2); | |
1508 | } else { | |
1509 | tcg_out_insn(s, 3502, SUB, ext, a0, a1, a2); | |
1510 | } | |
4a136e0a CF |
1511 | break; |
1512 | ||
14b155dd RH |
1513 | case INDEX_op_neg_i64: |
1514 | case INDEX_op_neg_i32: | |
1515 | tcg_out_insn(s, 3502, SUB, ext, a0, TCG_REG_XZR, a1); | |
1516 | break; | |
1517 | ||
4a136e0a | 1518 | case INDEX_op_and_i32: |
e029f293 RH |
1519 | a2 = (int32_t)a2; |
1520 | /* FALLTHRU */ | |
1521 | case INDEX_op_and_i64: | |
1522 | if (c2) { | |
1523 | tcg_out_logicali(s, I3404_ANDI, ext, a0, a1, a2); | |
1524 | } else { | |
1525 | tcg_out_insn(s, 3510, AND, ext, a0, a1, a2); | |
1526 | } | |
4a136e0a CF |
1527 | break; |
1528 | ||
14b155dd RH |
1529 | case INDEX_op_andc_i32: |
1530 | a2 = (int32_t)a2; | |
1531 | /* FALLTHRU */ | |
1532 | case INDEX_op_andc_i64: | |
1533 | if (c2) { | |
1534 | tcg_out_logicali(s, I3404_ANDI, ext, a0, a1, ~a2); | |
1535 | } else { | |
1536 | tcg_out_insn(s, 3510, BIC, ext, a0, a1, a2); | |
1537 | } | |
1538 | break; | |
1539 | ||
4a136e0a | 1540 | case INDEX_op_or_i32: |
e029f293 RH |
1541 | a2 = (int32_t)a2; |
1542 | /* FALLTHRU */ | |
1543 | case INDEX_op_or_i64: | |
1544 | if (c2) { | |
1545 | tcg_out_logicali(s, I3404_ORRI, ext, a0, a1, a2); | |
1546 | } else { | |
1547 | tcg_out_insn(s, 3510, ORR, ext, a0, a1, a2); | |
1548 | } | |
4a136e0a CF |
1549 | break; |
1550 | ||
14b155dd RH |
1551 | case INDEX_op_orc_i32: |
1552 | a2 = (int32_t)a2; | |
1553 | /* FALLTHRU */ | |
1554 | case INDEX_op_orc_i64: | |
1555 | if (c2) { | |
1556 | tcg_out_logicali(s, I3404_ORRI, ext, a0, a1, ~a2); | |
1557 | } else { | |
1558 | tcg_out_insn(s, 3510, ORN, ext, a0, a1, a2); | |
1559 | } | |
1560 | break; | |
1561 | ||
4a136e0a | 1562 | case INDEX_op_xor_i32: |
e029f293 RH |
1563 | a2 = (int32_t)a2; |
1564 | /* FALLTHRU */ | |
1565 | case INDEX_op_xor_i64: | |
1566 | if (c2) { | |
1567 | tcg_out_logicali(s, I3404_EORI, ext, a0, a1, a2); | |
1568 | } else { | |
1569 | tcg_out_insn(s, 3510, EOR, ext, a0, a1, a2); | |
1570 | } | |
4a136e0a CF |
1571 | break; |
1572 | ||
14b155dd RH |
1573 | case INDEX_op_eqv_i32: |
1574 | a2 = (int32_t)a2; | |
1575 | /* FALLTHRU */ | |
1576 | case INDEX_op_eqv_i64: | |
1577 | if (c2) { | |
1578 | tcg_out_logicali(s, I3404_EORI, ext, a0, a1, ~a2); | |
1579 | } else { | |
1580 | tcg_out_insn(s, 3510, EON, ext, a0, a1, a2); | |
1581 | } | |
1582 | break; | |
1583 | ||
1584 | case INDEX_op_not_i64: | |
1585 | case INDEX_op_not_i32: | |
1586 | tcg_out_insn(s, 3510, ORN, ext, a0, TCG_REG_XZR, a1); | |
1587 | break; | |
1588 | ||
4a136e0a | 1589 | case INDEX_op_mul_i64: |
4a136e0a | 1590 | case INDEX_op_mul_i32: |
8678b71c RH |
1591 | tcg_out_insn(s, 3509, MADD, ext, a0, a1, a2, TCG_REG_XZR); |
1592 | break; | |
1593 | ||
1594 | case INDEX_op_div_i64: | |
1595 | case INDEX_op_div_i32: | |
1596 | tcg_out_insn(s, 3508, SDIV, ext, a0, a1, a2); | |
1597 | break; | |
1598 | case INDEX_op_divu_i64: | |
1599 | case INDEX_op_divu_i32: | |
1600 | tcg_out_insn(s, 3508, UDIV, ext, a0, a1, a2); | |
1601 | break; | |
1602 | ||
1603 | case INDEX_op_rem_i64: | |
1604 | case INDEX_op_rem_i32: | |
1605 | tcg_out_insn(s, 3508, SDIV, ext, TCG_REG_TMP, a1, a2); | |
1606 | tcg_out_insn(s, 3509, MSUB, ext, a0, TCG_REG_TMP, a2, a1); | |
1607 | break; | |
1608 | case INDEX_op_remu_i64: | |
1609 | case INDEX_op_remu_i32: | |
1610 | tcg_out_insn(s, 3508, UDIV, ext, TCG_REG_TMP, a1, a2); | |
1611 | tcg_out_insn(s, 3509, MSUB, ext, a0, TCG_REG_TMP, a2, a1); | |
4a136e0a CF |
1612 | break; |
1613 | ||
1614 | case INDEX_op_shl_i64: | |
4a136e0a | 1615 | case INDEX_op_shl_i32: |
df9351e3 | 1616 | if (c2) { |
8d8db193 | 1617 | tcg_out_shl(s, ext, a0, a1, a2); |
df9351e3 RH |
1618 | } else { |
1619 | tcg_out_insn(s, 3508, LSLV, ext, a0, a1, a2); | |
4a136e0a CF |
1620 | } |
1621 | break; | |
1622 | ||
1623 | case INDEX_op_shr_i64: | |
4a136e0a | 1624 | case INDEX_op_shr_i32: |
df9351e3 | 1625 | if (c2) { |
8d8db193 | 1626 | tcg_out_shr(s, ext, a0, a1, a2); |
df9351e3 RH |
1627 | } else { |
1628 | tcg_out_insn(s, 3508, LSRV, ext, a0, a1, a2); | |
4a136e0a CF |
1629 | } |
1630 | break; | |
1631 | ||
1632 | case INDEX_op_sar_i64: | |
4a136e0a | 1633 | case INDEX_op_sar_i32: |
df9351e3 | 1634 | if (c2) { |
8d8db193 | 1635 | tcg_out_sar(s, ext, a0, a1, a2); |
df9351e3 RH |
1636 | } else { |
1637 | tcg_out_insn(s, 3508, ASRV, ext, a0, a1, a2); | |
4a136e0a CF |
1638 | } |
1639 | break; | |
1640 | ||
1641 | case INDEX_op_rotr_i64: | |
4a136e0a | 1642 | case INDEX_op_rotr_i32: |
df9351e3 | 1643 | if (c2) { |
8d8db193 | 1644 | tcg_out_rotr(s, ext, a0, a1, a2); |
df9351e3 RH |
1645 | } else { |
1646 | tcg_out_insn(s, 3508, RORV, ext, a0, a1, a2); | |
4a136e0a CF |
1647 | } |
1648 | break; | |
1649 | ||
1650 | case INDEX_op_rotl_i64: | |
df9351e3 RH |
1651 | case INDEX_op_rotl_i32: |
1652 | if (c2) { | |
8d8db193 | 1653 | tcg_out_rotl(s, ext, a0, a1, a2); |
4a136e0a | 1654 | } else { |
50573c66 | 1655 | tcg_out_insn(s, 3502, SUB, 0, TCG_REG_TMP, TCG_REG_XZR, a2); |
df9351e3 | 1656 | tcg_out_insn(s, 3508, RORV, ext, a0, a1, TCG_REG_TMP); |
4a136e0a CF |
1657 | } |
1658 | break; | |
1659 | ||
53c76c19 RH |
1660 | case INDEX_op_clz_i64: |
1661 | case INDEX_op_clz_i32: | |
1662 | tcg_out_cltz(s, ext, a0, a1, a2, c2, false); | |
1663 | break; | |
1664 | case INDEX_op_ctz_i64: | |
1665 | case INDEX_op_ctz_i32: | |
1666 | tcg_out_cltz(s, ext, a0, a1, a2, c2, true); | |
1667 | break; | |
1668 | ||
8d8db193 | 1669 | case INDEX_op_brcond_i32: |
90f1cd91 RH |
1670 | a1 = (int32_t)a1; |
1671 | /* FALLTHRU */ | |
1672 | case INDEX_op_brcond_i64: | |
bec16311 | 1673 | tcg_out_brcond(s, ext, a2, a0, a1, const_args[1], arg_label(args[3])); |
4a136e0a CF |
1674 | break; |
1675 | ||
4a136e0a | 1676 | case INDEX_op_setcond_i32: |
90f1cd91 RH |
1677 | a2 = (int32_t)a2; |
1678 | /* FALLTHRU */ | |
1679 | case INDEX_op_setcond_i64: | |
1680 | tcg_out_cmp(s, ext, a1, a2, c2); | |
ed7a0aa8 RH |
1681 | /* Use CSET alias of CSINC Wd, WZR, WZR, invert(cond). */ |
1682 | tcg_out_insn(s, 3506, CSINC, TCG_TYPE_I32, a0, TCG_REG_XZR, | |
1683 | TCG_REG_XZR, tcg_invert_cond(args[3])); | |
4a136e0a CF |
1684 | break; |
1685 | ||
04ce397b RH |
1686 | case INDEX_op_movcond_i32: |
1687 | a2 = (int32_t)a2; | |
1688 | /* FALLTHRU */ | |
1689 | case INDEX_op_movcond_i64: | |
1690 | tcg_out_cmp(s, ext, a1, a2, c2); | |
1691 | tcg_out_insn(s, 3506, CSEL, ext, a0, REG0(3), REG0(4), args[5]); | |
1692 | break; | |
1693 | ||
de61d14f RH |
1694 | case INDEX_op_qemu_ld_i32: |
1695 | case INDEX_op_qemu_ld_i64: | |
59227d5d | 1696 | tcg_out_qemu_ld(s, a0, a1, a2, ext); |
4a136e0a | 1697 | break; |
de61d14f RH |
1698 | case INDEX_op_qemu_st_i32: |
1699 | case INDEX_op_qemu_st_i64: | |
59227d5d | 1700 | tcg_out_qemu_st(s, REG0(0), a1, a2); |
4a136e0a CF |
1701 | break; |
1702 | ||
f0293414 | 1703 | case INDEX_op_bswap64_i64: |
edd8824c RH |
1704 | tcg_out_rev64(s, a0, a1); |
1705 | break; | |
1706 | case INDEX_op_bswap32_i64: | |
9c4a059d | 1707 | case INDEX_op_bswap32_i32: |
edd8824c | 1708 | tcg_out_rev32(s, a0, a1); |
9c4a059d CF |
1709 | break; |
1710 | case INDEX_op_bswap16_i64: | |
1711 | case INDEX_op_bswap16_i32: | |
edd8824c | 1712 | tcg_out_rev16(s, a0, a1); |
9c4a059d CF |
1713 | break; |
1714 | ||
31f1275b | 1715 | case INDEX_op_ext8s_i64: |
31f1275b | 1716 | case INDEX_op_ext8s_i32: |
929f8b55 | 1717 | tcg_out_sxt(s, ext, MO_8, a0, a1); |
31f1275b CF |
1718 | break; |
1719 | case INDEX_op_ext16s_i64: | |
31f1275b | 1720 | case INDEX_op_ext16s_i32: |
929f8b55 | 1721 | tcg_out_sxt(s, ext, MO_16, a0, a1); |
31f1275b | 1722 | break; |
4f2331e5 | 1723 | case INDEX_op_ext_i32_i64: |
31f1275b | 1724 | case INDEX_op_ext32s_i64: |
929f8b55 | 1725 | tcg_out_sxt(s, TCG_TYPE_I64, MO_32, a0, a1); |
31f1275b CF |
1726 | break; |
1727 | case INDEX_op_ext8u_i64: | |
1728 | case INDEX_op_ext8u_i32: | |
929f8b55 | 1729 | tcg_out_uxt(s, MO_8, a0, a1); |
31f1275b CF |
1730 | break; |
1731 | case INDEX_op_ext16u_i64: | |
1732 | case INDEX_op_ext16u_i32: | |
929f8b55 | 1733 | tcg_out_uxt(s, MO_16, a0, a1); |
31f1275b | 1734 | break; |
4f2331e5 | 1735 | case INDEX_op_extu_i32_i64: |
31f1275b | 1736 | case INDEX_op_ext32u_i64: |
929f8b55 | 1737 | tcg_out_movr(s, TCG_TYPE_I32, a0, a1); |
31f1275b CF |
1738 | break; |
1739 | ||
b3c56df7 RH |
1740 | case INDEX_op_deposit_i64: |
1741 | case INDEX_op_deposit_i32: | |
1742 | tcg_out_dep(s, ext, a0, REG0(2), args[3], args[4]); | |
1743 | break; | |
1744 | ||
e2179f94 RH |
1745 | case INDEX_op_extract_i64: |
1746 | case INDEX_op_extract_i32: | |
1747 | tcg_out_ubfm(s, ext, a0, a1, a2, a2 + args[3] - 1); | |
1748 | break; | |
1749 | ||
1750 | case INDEX_op_sextract_i64: | |
1751 | case INDEX_op_sextract_i32: | |
1752 | tcg_out_sbfm(s, ext, a0, a1, a2, a2 + args[3] - 1); | |
1753 | break; | |
1754 | ||
c6e929e7 RH |
1755 | case INDEX_op_add2_i32: |
1756 | tcg_out_addsub2(s, TCG_TYPE_I32, a0, a1, REG0(2), REG0(3), | |
1757 | (int32_t)args[4], args[5], const_args[4], | |
1758 | const_args[5], false); | |
1759 | break; | |
1760 | case INDEX_op_add2_i64: | |
1761 | tcg_out_addsub2(s, TCG_TYPE_I64, a0, a1, REG0(2), REG0(3), args[4], | |
1762 | args[5], const_args[4], const_args[5], false); | |
1763 | break; | |
1764 | case INDEX_op_sub2_i32: | |
1765 | tcg_out_addsub2(s, TCG_TYPE_I32, a0, a1, REG0(2), REG0(3), | |
1766 | (int32_t)args[4], args[5], const_args[4], | |
1767 | const_args[5], true); | |
1768 | break; | |
1769 | case INDEX_op_sub2_i64: | |
1770 | tcg_out_addsub2(s, TCG_TYPE_I64, a0, a1, REG0(2), REG0(3), args[4], | |
1771 | args[5], const_args[4], const_args[5], true); | |
1772 | break; | |
1773 | ||
1fcc9ddf RH |
1774 | case INDEX_op_muluh_i64: |
1775 | tcg_out_insn(s, 3508, UMULH, TCG_TYPE_I64, a0, a1, a2); | |
1776 | break; | |
1777 | case INDEX_op_mulsh_i64: | |
1778 | tcg_out_insn(s, 3508, SMULH, TCG_TYPE_I64, a0, a1, a2); | |
1779 | break; | |
1780 | ||
c7a59c2a PK |
1781 | case INDEX_op_mb: |
1782 | tcg_out_mb(s, a0); | |
1783 | break; | |
1784 | ||
96d0ee7f | 1785 | case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */ |
a51a6b6a | 1786 | case INDEX_op_mov_i64: |
96d0ee7f | 1787 | case INDEX_op_movi_i32: /* Always emitted via tcg_out_movi. */ |
a51a6b6a | 1788 | case INDEX_op_movi_i64: |
96d0ee7f | 1789 | case INDEX_op_call: /* Always emitted via tcg_out_call. */ |
4a136e0a | 1790 | default: |
a51a6b6a | 1791 | tcg_abort(); |
4a136e0a | 1792 | } |
04ce397b RH |
1793 | |
1794 | #undef REG0 | |
4a136e0a CF |
1795 | } |
1796 | ||
1797 | static const TCGTargetOpDef aarch64_op_defs[] = { | |
1798 | { INDEX_op_exit_tb, { } }, | |
1799 | { INDEX_op_goto_tb, { } }, | |
4a136e0a | 1800 | { INDEX_op_br, { } }, |
b19f0c2e | 1801 | { INDEX_op_goto_ptr, { "r" } }, |
4a136e0a | 1802 | |
4a136e0a CF |
1803 | { INDEX_op_ld8u_i32, { "r", "r" } }, |
1804 | { INDEX_op_ld8s_i32, { "r", "r" } }, | |
1805 | { INDEX_op_ld16u_i32, { "r", "r" } }, | |
1806 | { INDEX_op_ld16s_i32, { "r", "r" } }, | |
1807 | { INDEX_op_ld_i32, { "r", "r" } }, | |
1808 | { INDEX_op_ld8u_i64, { "r", "r" } }, | |
1809 | { INDEX_op_ld8s_i64, { "r", "r" } }, | |
1810 | { INDEX_op_ld16u_i64, { "r", "r" } }, | |
1811 | { INDEX_op_ld16s_i64, { "r", "r" } }, | |
1812 | { INDEX_op_ld32u_i64, { "r", "r" } }, | |
1813 | { INDEX_op_ld32s_i64, { "r", "r" } }, | |
1814 | { INDEX_op_ld_i64, { "r", "r" } }, | |
1815 | ||
e81864a1 RH |
1816 | { INDEX_op_st8_i32, { "rZ", "r" } }, |
1817 | { INDEX_op_st16_i32, { "rZ", "r" } }, | |
1818 | { INDEX_op_st_i32, { "rZ", "r" } }, | |
1819 | { INDEX_op_st8_i64, { "rZ", "r" } }, | |
1820 | { INDEX_op_st16_i64, { "rZ", "r" } }, | |
1821 | { INDEX_op_st32_i64, { "rZ", "r" } }, | |
1822 | { INDEX_op_st_i64, { "rZ", "r" } }, | |
4a136e0a | 1823 | |
170bf931 | 1824 | { INDEX_op_add_i32, { "r", "r", "rA" } }, |
90f1cd91 | 1825 | { INDEX_op_add_i64, { "r", "r", "rA" } }, |
170bf931 | 1826 | { INDEX_op_sub_i32, { "r", "r", "rA" } }, |
90f1cd91 | 1827 | { INDEX_op_sub_i64, { "r", "r", "rA" } }, |
4a136e0a CF |
1828 | { INDEX_op_mul_i32, { "r", "r", "r" } }, |
1829 | { INDEX_op_mul_i64, { "r", "r", "r" } }, | |
8678b71c RH |
1830 | { INDEX_op_div_i32, { "r", "r", "r" } }, |
1831 | { INDEX_op_div_i64, { "r", "r", "r" } }, | |
1832 | { INDEX_op_divu_i32, { "r", "r", "r" } }, | |
1833 | { INDEX_op_divu_i64, { "r", "r", "r" } }, | |
1834 | { INDEX_op_rem_i32, { "r", "r", "r" } }, | |
1835 | { INDEX_op_rem_i64, { "r", "r", "r" } }, | |
1836 | { INDEX_op_remu_i32, { "r", "r", "r" } }, | |
1837 | { INDEX_op_remu_i64, { "r", "r", "r" } }, | |
170bf931 | 1838 | { INDEX_op_and_i32, { "r", "r", "rL" } }, |
e029f293 | 1839 | { INDEX_op_and_i64, { "r", "r", "rL" } }, |
170bf931 | 1840 | { INDEX_op_or_i32, { "r", "r", "rL" } }, |
e029f293 | 1841 | { INDEX_op_or_i64, { "r", "r", "rL" } }, |
170bf931 | 1842 | { INDEX_op_xor_i32, { "r", "r", "rL" } }, |
e029f293 | 1843 | { INDEX_op_xor_i64, { "r", "r", "rL" } }, |
170bf931 | 1844 | { INDEX_op_andc_i32, { "r", "r", "rL" } }, |
14b155dd | 1845 | { INDEX_op_andc_i64, { "r", "r", "rL" } }, |
170bf931 | 1846 | { INDEX_op_orc_i32, { "r", "r", "rL" } }, |
14b155dd | 1847 | { INDEX_op_orc_i64, { "r", "r", "rL" } }, |
170bf931 | 1848 | { INDEX_op_eqv_i32, { "r", "r", "rL" } }, |
14b155dd RH |
1849 | { INDEX_op_eqv_i64, { "r", "r", "rL" } }, |
1850 | ||
1851 | { INDEX_op_neg_i32, { "r", "r" } }, | |
1852 | { INDEX_op_neg_i64, { "r", "r" } }, | |
1853 | { INDEX_op_not_i32, { "r", "r" } }, | |
1854 | { INDEX_op_not_i64, { "r", "r" } }, | |
4a136e0a CF |
1855 | |
1856 | { INDEX_op_shl_i32, { "r", "r", "ri" } }, | |
1857 | { INDEX_op_shr_i32, { "r", "r", "ri" } }, | |
1858 | { INDEX_op_sar_i32, { "r", "r", "ri" } }, | |
1859 | { INDEX_op_rotl_i32, { "r", "r", "ri" } }, | |
1860 | { INDEX_op_rotr_i32, { "r", "r", "ri" } }, | |
53c76c19 RH |
1861 | { INDEX_op_clz_i32, { "r", "r", "rAL" } }, |
1862 | { INDEX_op_ctz_i32, { "r", "r", "rAL" } }, | |
4a136e0a CF |
1863 | { INDEX_op_shl_i64, { "r", "r", "ri" } }, |
1864 | { INDEX_op_shr_i64, { "r", "r", "ri" } }, | |
1865 | { INDEX_op_sar_i64, { "r", "r", "ri" } }, | |
1866 | { INDEX_op_rotl_i64, { "r", "r", "ri" } }, | |
1867 | { INDEX_op_rotr_i64, { "r", "r", "ri" } }, | |
53c76c19 RH |
1868 | { INDEX_op_clz_i64, { "r", "r", "rAL" } }, |
1869 | { INDEX_op_ctz_i64, { "r", "r", "rAL" } }, | |
4a136e0a | 1870 | |
170bf931 | 1871 | { INDEX_op_brcond_i32, { "r", "rA" } }, |
90f1cd91 | 1872 | { INDEX_op_brcond_i64, { "r", "rA" } }, |
170bf931 | 1873 | { INDEX_op_setcond_i32, { "r", "r", "rA" } }, |
90f1cd91 | 1874 | { INDEX_op_setcond_i64, { "r", "r", "rA" } }, |
170bf931 | 1875 | { INDEX_op_movcond_i32, { "r", "r", "rA", "rZ", "rZ" } }, |
04ce397b | 1876 | { INDEX_op_movcond_i64, { "r", "r", "rA", "rZ", "rZ" } }, |
4a136e0a | 1877 | |
de61d14f RH |
1878 | { INDEX_op_qemu_ld_i32, { "r", "l" } }, |
1879 | { INDEX_op_qemu_ld_i64, { "r", "l" } }, | |
e81864a1 RH |
1880 | { INDEX_op_qemu_st_i32, { "lZ", "l" } }, |
1881 | { INDEX_op_qemu_st_i64, { "lZ", "l" } }, | |
9c4a059d CF |
1882 | |
1883 | { INDEX_op_bswap16_i32, { "r", "r" } }, | |
1884 | { INDEX_op_bswap32_i32, { "r", "r" } }, | |
1885 | { INDEX_op_bswap16_i64, { "r", "r" } }, | |
1886 | { INDEX_op_bswap32_i64, { "r", "r" } }, | |
1887 | { INDEX_op_bswap64_i64, { "r", "r" } }, | |
1888 | ||
31f1275b CF |
1889 | { INDEX_op_ext8s_i32, { "r", "r" } }, |
1890 | { INDEX_op_ext16s_i32, { "r", "r" } }, | |
1891 | { INDEX_op_ext8u_i32, { "r", "r" } }, | |
1892 | { INDEX_op_ext16u_i32, { "r", "r" } }, | |
1893 | ||
1894 | { INDEX_op_ext8s_i64, { "r", "r" } }, | |
1895 | { INDEX_op_ext16s_i64, { "r", "r" } }, | |
1896 | { INDEX_op_ext32s_i64, { "r", "r" } }, | |
1897 | { INDEX_op_ext8u_i64, { "r", "r" } }, | |
1898 | { INDEX_op_ext16u_i64, { "r", "r" } }, | |
1899 | { INDEX_op_ext32u_i64, { "r", "r" } }, | |
4f2331e5 AJ |
1900 | { INDEX_op_ext_i32_i64, { "r", "r" } }, |
1901 | { INDEX_op_extu_i32_i64, { "r", "r" } }, | |
31f1275b | 1902 | |
b3c56df7 RH |
1903 | { INDEX_op_deposit_i32, { "r", "0", "rZ" } }, |
1904 | { INDEX_op_deposit_i64, { "r", "0", "rZ" } }, | |
e2179f94 RH |
1905 | { INDEX_op_extract_i32, { "r", "r" } }, |
1906 | { INDEX_op_extract_i64, { "r", "r" } }, | |
1907 | { INDEX_op_sextract_i32, { "r", "r" } }, | |
1908 | { INDEX_op_sextract_i64, { "r", "r" } }, | |
b3c56df7 | 1909 | |
170bf931 | 1910 | { INDEX_op_add2_i32, { "r", "r", "rZ", "rZ", "rA", "rMZ" } }, |
c6e929e7 | 1911 | { INDEX_op_add2_i64, { "r", "r", "rZ", "rZ", "rA", "rMZ" } }, |
170bf931 | 1912 | { INDEX_op_sub2_i32, { "r", "r", "rZ", "rZ", "rA", "rMZ" } }, |
c6e929e7 RH |
1913 | { INDEX_op_sub2_i64, { "r", "r", "rZ", "rZ", "rA", "rMZ" } }, |
1914 | ||
1fcc9ddf RH |
1915 | { INDEX_op_muluh_i64, { "r", "r", "r" } }, |
1916 | { INDEX_op_mulsh_i64, { "r", "r", "r" } }, | |
1917 | ||
c7a59c2a | 1918 | { INDEX_op_mb, { } }, |
4a136e0a CF |
1919 | { -1 }, |
1920 | }; | |
1921 | ||
f69d277e RH |
1922 | static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op) |
1923 | { | |
1924 | int i, n = ARRAY_SIZE(aarch64_op_defs); | |
1925 | ||
1926 | for (i = 0; i < n; ++i) { | |
1927 | if (aarch64_op_defs[i].op == op) { | |
1928 | return &aarch64_op_defs[i]; | |
1929 | } | |
1930 | } | |
1931 | return NULL; | |
1932 | } | |
1933 | ||
4a136e0a CF |
1934 | static void tcg_target_init(TCGContext *s) |
1935 | { | |
4a136e0a CF |
1936 | tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff); |
1937 | tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff); | |
1938 | ||
1939 | tcg_regset_set32(tcg_target_call_clobber_regs, 0, | |
1940 | (1 << TCG_REG_X0) | (1 << TCG_REG_X1) | | |
1941 | (1 << TCG_REG_X2) | (1 << TCG_REG_X3) | | |
1942 | (1 << TCG_REG_X4) | (1 << TCG_REG_X5) | | |
1943 | (1 << TCG_REG_X6) | (1 << TCG_REG_X7) | | |
1944 | (1 << TCG_REG_X8) | (1 << TCG_REG_X9) | | |
1945 | (1 << TCG_REG_X10) | (1 << TCG_REG_X11) | | |
1946 | (1 << TCG_REG_X12) | (1 << TCG_REG_X13) | | |
1947 | (1 << TCG_REG_X14) | (1 << TCG_REG_X15) | | |
1948 | (1 << TCG_REG_X16) | (1 << TCG_REG_X17) | | |
d82b78e4 | 1949 | (1 << TCG_REG_X18) | (1 << TCG_REG_X30)); |
4a136e0a CF |
1950 | |
1951 | tcg_regset_clear(s->reserved_regs); | |
1952 | tcg_regset_set_reg(s->reserved_regs, TCG_REG_SP); | |
1953 | tcg_regset_set_reg(s->reserved_regs, TCG_REG_FP); | |
1954 | tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP); | |
1955 | tcg_regset_set_reg(s->reserved_regs, TCG_REG_X18); /* platform register */ | |
4a136e0a CF |
1956 | } |
1957 | ||
38d195aa RH |
1958 | /* Saving pairs: (X19, X20) .. (X27, X28), (X29(fp), X30(lr)). */ |
1959 | #define PUSH_SIZE ((30 - 19 + 1) * 8) | |
1960 | ||
1961 | #define FRAME_SIZE \ | |
1962 | ((PUSH_SIZE \ | |
1963 | + TCG_STATIC_CALL_ARGS_SIZE \ | |
1964 | + CPU_TEMP_BUF_NLONGS * sizeof(long) \ | |
1965 | + TCG_TARGET_STACK_ALIGN - 1) \ | |
1966 | & ~(TCG_TARGET_STACK_ALIGN - 1)) | |
1967 | ||
1968 | /* We're expecting a 2 byte uleb128 encoded value. */ | |
1969 | QEMU_BUILD_BUG_ON(FRAME_SIZE >= (1 << 14)); | |
1970 | ||
1971 | /* We're expecting to use a single ADDI insn. */ | |
1972 | QEMU_BUILD_BUG_ON(FRAME_SIZE - PUSH_SIZE > 0xfff); | |
1973 | ||
4a136e0a CF |
1974 | static void tcg_target_qemu_prologue(TCGContext *s) |
1975 | { | |
4a136e0a CF |
1976 | TCGReg r; |
1977 | ||
95f72aa9 RH |
1978 | /* Push (FP, LR) and allocate space for all saved registers. */ |
1979 | tcg_out_insn(s, 3314, STP, TCG_REG_FP, TCG_REG_LR, | |
38d195aa | 1980 | TCG_REG_SP, -PUSH_SIZE, 1, 1); |
4a136e0a | 1981 | |
d82b78e4 | 1982 | /* Set up frame pointer for canonical unwinding. */ |
929f8b55 | 1983 | tcg_out_movr_sp(s, TCG_TYPE_I64, TCG_REG_FP, TCG_REG_SP); |
4a136e0a | 1984 | |
d82b78e4 | 1985 | /* Store callee-preserved regs x19..x28. */ |
4a136e0a | 1986 | for (r = TCG_REG_X19; r <= TCG_REG_X27; r += 2) { |
95f72aa9 RH |
1987 | int ofs = (r - TCG_REG_X19 + 2) * 8; |
1988 | tcg_out_insn(s, 3314, STP, r, r + 1, TCG_REG_SP, ofs, 1, 0); | |
4a136e0a CF |
1989 | } |
1990 | ||
096c46c0 RH |
1991 | /* Make stack space for TCG locals. */ |
1992 | tcg_out_insn(s, 3401, SUBI, TCG_TYPE_I64, TCG_REG_SP, TCG_REG_SP, | |
38d195aa | 1993 | FRAME_SIZE - PUSH_SIZE); |
096c46c0 | 1994 | |
95f72aa9 | 1995 | /* Inform TCG about how to find TCG locals with register, offset, size. */ |
4a136e0a CF |
1996 | tcg_set_frame(s, TCG_REG_SP, TCG_STATIC_CALL_ARGS_SIZE, |
1997 | CPU_TEMP_BUF_NLONGS * sizeof(long)); | |
1998 | ||
4cbea598 | 1999 | #if !defined(CONFIG_SOFTMMU) |
352bcb0a | 2000 | if (USE_GUEST_BASE) { |
b76f21a7 | 2001 | tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_GUEST_BASE, guest_base); |
6a91c7c9 JK |
2002 | tcg_regset_set_reg(s->reserved_regs, TCG_REG_GUEST_BASE); |
2003 | } | |
2004 | #endif | |
2005 | ||
4a136e0a | 2006 | tcg_out_mov(s, TCG_TYPE_PTR, TCG_AREG0, tcg_target_call_iarg_regs[0]); |
81d8a5ee | 2007 | tcg_out_insn(s, 3207, BR, tcg_target_call_iarg_regs[1]); |
4a136e0a | 2008 | |
b19f0c2e RH |
2009 | /* |
2010 | * Return path for goto_ptr. Set return value to 0, a-la exit_tb, | |
2011 | * and fall through to the rest of the epilogue. | |
2012 | */ | |
2013 | s->code_gen_epilogue = s->code_ptr; | |
2014 | tcg_out_movi(s, TCG_TYPE_REG, TCG_REG_X0, 0); | |
2015 | ||
2016 | /* TB epilogue */ | |
4a136e0a CF |
2017 | tb_ret_addr = s->code_ptr; |
2018 | ||
096c46c0 RH |
2019 | /* Remove TCG locals stack space. */ |
2020 | tcg_out_insn(s, 3401, ADDI, TCG_TYPE_I64, TCG_REG_SP, TCG_REG_SP, | |
38d195aa | 2021 | FRAME_SIZE - PUSH_SIZE); |
4a136e0a | 2022 | |
95f72aa9 | 2023 | /* Restore registers x19..x28. */ |
4a136e0a | 2024 | for (r = TCG_REG_X19; r <= TCG_REG_X27; r += 2) { |
95f72aa9 RH |
2025 | int ofs = (r - TCG_REG_X19 + 2) * 8; |
2026 | tcg_out_insn(s, 3314, LDP, r, r + 1, TCG_REG_SP, ofs, 1, 0); | |
4a136e0a CF |
2027 | } |
2028 | ||
95f72aa9 RH |
2029 | /* Pop (FP, LR), restore SP to previous frame. */ |
2030 | tcg_out_insn(s, 3314, LDP, TCG_REG_FP, TCG_REG_LR, | |
38d195aa | 2031 | TCG_REG_SP, PUSH_SIZE, 0, 1); |
81d8a5ee | 2032 | tcg_out_insn(s, 3207, RET, TCG_REG_LR); |
4a136e0a | 2033 | } |
38d195aa RH |
2034 | |
2035 | typedef struct { | |
3d9bddb3 | 2036 | DebugFrameHeader h; |
38d195aa RH |
2037 | uint8_t fde_def_cfa[4]; |
2038 | uint8_t fde_reg_ofs[24]; | |
2039 | } DebugFrame; | |
2040 | ||
2041 | #define ELF_HOST_MACHINE EM_AARCH64 | |
2042 | ||
3d9bddb3 RH |
2043 | static const DebugFrame debug_frame = { |
2044 | .h.cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */ | |
2045 | .h.cie.id = -1, | |
2046 | .h.cie.version = 1, | |
2047 | .h.cie.code_align = 1, | |
2048 | .h.cie.data_align = 0x78, /* sleb128 -8 */ | |
2049 | .h.cie.return_column = TCG_REG_LR, | |
38d195aa RH |
2050 | |
2051 | /* Total FDE size does not include the "len" member. */ | |
3d9bddb3 | 2052 | .h.fde.len = sizeof(DebugFrame) - offsetof(DebugFrame, h.fde.cie_offset), |
38d195aa RH |
2053 | |
2054 | .fde_def_cfa = { | |
2055 | 12, TCG_REG_SP, /* DW_CFA_def_cfa sp, ... */ | |
2056 | (FRAME_SIZE & 0x7f) | 0x80, /* ... uleb128 FRAME_SIZE */ | |
2057 | (FRAME_SIZE >> 7) | |
2058 | }, | |
2059 | .fde_reg_ofs = { | |
2060 | 0x80 + 28, 1, /* DW_CFA_offset, x28, -8 */ | |
2061 | 0x80 + 27, 2, /* DW_CFA_offset, x27, -16 */ | |
2062 | 0x80 + 26, 3, /* DW_CFA_offset, x26, -24 */ | |
2063 | 0x80 + 25, 4, /* DW_CFA_offset, x25, -32 */ | |
2064 | 0x80 + 24, 5, /* DW_CFA_offset, x24, -40 */ | |
2065 | 0x80 + 23, 6, /* DW_CFA_offset, x23, -48 */ | |
2066 | 0x80 + 22, 7, /* DW_CFA_offset, x22, -56 */ | |
2067 | 0x80 + 21, 8, /* DW_CFA_offset, x21, -64 */ | |
2068 | 0x80 + 20, 9, /* DW_CFA_offset, x20, -72 */ | |
2069 | 0x80 + 19, 10, /* DW_CFA_offset, x1p, -80 */ | |
2070 | 0x80 + 30, 11, /* DW_CFA_offset, lr, -88 */ | |
2071 | 0x80 + 29, 12, /* DW_CFA_offset, fp, -96 */ | |
2072 | } | |
2073 | }; | |
2074 | ||
2075 | void tcg_register_jit(void *buf, size_t buf_size) | |
2076 | { | |
38d195aa RH |
2077 | tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame)); |
2078 | } |