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