1/* 2 * Stack-less Just-In-Time compiler 3 * 4 * Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without modification, are 7 * permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, this list of 10 * conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 13 * of conditions and the following disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name(void) 28{ 29 return "ARM-64" SLJIT_CPUINFO; 30} 31 32/* Length of an instruction word */ 33typedef sljit_ui sljit_ins; 34 35#define TMP_ZERO 0 36 37#define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2) 38#define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3) 39#define TMP_REG3 (SLJIT_NUMBER_OF_REGISTERS + 4) 40#define TMP_REG4 (SLJIT_NUMBER_OF_REGISTERS + 5) 41#define TMP_LR (SLJIT_NUMBER_OF_REGISTERS + 6) 42#define TMP_SP (SLJIT_NUMBER_OF_REGISTERS + 7) 43 44#define TMP_FREG1 (0) 45#define TMP_FREG2 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1) 46 47static SLJIT_CONST sljit_ub reg_map[SLJIT_NUMBER_OF_REGISTERS + 8] = { 48 31, 0, 1, 2, 3, 4, 5, 6, 7, 13, 14, 15, 16, 17, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 29, 9, 10, 11, 12, 30, 31 49}; 50 51#define W_OP (1 << 31) 52#define RD(rd) (reg_map[rd]) 53#define RT(rt) (reg_map[rt]) 54#define RN(rn) (reg_map[rn] << 5) 55#define RT2(rt2) (reg_map[rt2] << 10) 56#define RM(rm) (reg_map[rm] << 16) 57#define VD(vd) (vd) 58#define VT(vt) (vt) 59#define VN(vn) ((vn) << 5) 60#define VM(vm) ((vm) << 16) 61 62/* --------------------------------------------------------------------- */ 63/* Instrucion forms */ 64/* --------------------------------------------------------------------- */ 65 66#define ADC 0x9a000000 67#define ADD 0x8b000000 68#define ADDI 0x91000000 69#define AND 0x8a000000 70#define ANDI 0x92000000 71#define ASRV 0x9ac02800 72#define B 0x14000000 73#define B_CC 0x54000000 74#define BL 0x94000000 75#define BLR 0xd63f0000 76#define BR 0xd61f0000 77#define BRK 0xd4200000 78#define CBZ 0xb4000000 79#define CLZ 0xdac01000 80#define CSINC 0x9a800400 81#define EOR 0xca000000 82#define EORI 0xd2000000 83#define FABS 0x1e60c000 84#define FADD 0x1e602800 85#define FCMP 0x1e602000 86#define FCVT 0x1e224000 87#define FCVTZS 0x9e780000 88#define FDIV 0x1e601800 89#define FMOV 0x1e604000 90#define FMUL 0x1e600800 91#define FNEG 0x1e614000 92#define FSUB 0x1e603800 93#define LDRI 0xf9400000 94#define LDP 0xa9400000 95#define LDP_PST 0xa8c00000 96#define LSLV 0x9ac02000 97#define LSRV 0x9ac02400 98#define MADD 0x9b000000 99#define MOVK 0xf2800000 100#define MOVN 0x92800000 101#define MOVZ 0xd2800000 102#define NOP 0xd503201f 103#define ORN 0xaa200000 104#define ORR 0xaa000000 105#define ORRI 0xb2000000 106#define RET 0xd65f0000 107#define SBC 0xda000000 108#define SBFM 0x93000000 109#define SCVTF 0x9e620000 110#define SDIV 0x9ac00c00 111#define SMADDL 0x9b200000 112#define SMULH 0x9b403c00 113#define STP 0xa9000000 114#define STP_PRE 0xa9800000 115#define STRI 0xf9000000 116#define STR_FI 0x3d000000 117#define STR_FR 0x3c206800 118#define STUR_FI 0x3c000000 119#define SUB 0xcb000000 120#define SUBI 0xd1000000 121#define SUBS 0xeb000000 122#define UBFM 0xd3000000 123#define UDIV 0x9ac00800 124#define UMULH 0x9bc03c00 125 126/* dest_reg is the absolute name of the register 127 Useful for reordering instructions in the delay slot. */ 128static sljit_si push_inst(struct sljit_compiler *compiler, sljit_ins ins) 129{ 130 sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins)); 131 FAIL_IF(!ptr); 132 *ptr = ins; 133 compiler->size++; 134 return SLJIT_SUCCESS; 135} 136 137static SLJIT_INLINE sljit_si emit_imm64_const(struct sljit_compiler *compiler, sljit_si dst, sljit_uw imm) 138{ 139 FAIL_IF(push_inst(compiler, MOVZ | RD(dst) | ((imm & 0xffff) << 5))); 140 FAIL_IF(push_inst(compiler, MOVK | RD(dst) | (((imm >> 16) & 0xffff) << 5) | (1 << 21))); 141 FAIL_IF(push_inst(compiler, MOVK | RD(dst) | (((imm >> 32) & 0xffff) << 5) | (2 << 21))); 142 return push_inst(compiler, MOVK | RD(dst) | ((imm >> 48) << 5) | (3 << 21)); 143} 144 145static SLJIT_INLINE void modify_imm64_const(sljit_ins* inst, sljit_uw new_imm) 146{ 147 sljit_si dst = inst[0] & 0x1f; 148 SLJIT_ASSERT((inst[0] & 0xffe00000) == MOVZ && (inst[1] & 0xffe00000) == (MOVK | (1 << 21))); 149 inst[0] = MOVZ | dst | ((new_imm & 0xffff) << 5); 150 inst[1] = MOVK | dst | (((new_imm >> 16) & 0xffff) << 5) | (1 << 21); 151 inst[2] = MOVK | dst | (((new_imm >> 32) & 0xffff) << 5) | (2 << 21); 152 inst[3] = MOVK | dst | ((new_imm >> 48) << 5) | (3 << 21); 153} 154 155static SLJIT_INLINE sljit_si detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code) 156{ 157 sljit_sw diff; 158 sljit_uw target_addr; 159 160 if (jump->flags & SLJIT_REWRITABLE_JUMP) { 161 jump->flags |= PATCH_ABS64; 162 return 0; 163 } 164 165 if (jump->flags & JUMP_ADDR) 166 target_addr = jump->u.target; 167 else { 168 SLJIT_ASSERT(jump->flags & JUMP_LABEL); 169 target_addr = (sljit_uw)(code + jump->u.label->size); 170 } 171 diff = (sljit_sw)target_addr - (sljit_sw)(code_ptr + 4); 172 173 if (jump->flags & IS_COND) { 174 diff += sizeof(sljit_ins); 175 if (diff <= 0xfffff && diff >= -0x100000) { 176 code_ptr[-5] ^= (jump->flags & IS_CBZ) ? (0x1 << 24) : 0x1; 177 jump->addr -= sizeof(sljit_ins); 178 jump->flags |= PATCH_COND; 179 return 5; 180 } 181 diff -= sizeof(sljit_ins); 182 } 183 184 if (diff <= 0x7ffffff && diff >= -0x8000000) { 185 jump->flags |= PATCH_B; 186 return 4; 187 } 188 189 if (target_addr <= 0xffffffffl) { 190 if (jump->flags & IS_COND) 191 code_ptr[-5] -= (2 << 5); 192 code_ptr[-2] = code_ptr[0]; 193 return 2; 194 } 195 if (target_addr <= 0xffffffffffffl) { 196 if (jump->flags & IS_COND) 197 code_ptr[-5] -= (1 << 5); 198 jump->flags |= PATCH_ABS48; 199 code_ptr[-1] = code_ptr[0]; 200 return 1; 201 } 202 203 jump->flags |= PATCH_ABS64; 204 return 0; 205} 206 207SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler) 208{ 209 struct sljit_memory_fragment *buf; 210 sljit_ins *code; 211 sljit_ins *code_ptr; 212 sljit_ins *buf_ptr; 213 sljit_ins *buf_end; 214 sljit_uw word_count; 215 sljit_uw addr; 216 sljit_si dst; 217 218 struct sljit_label *label; 219 struct sljit_jump *jump; 220 struct sljit_const *const_; 221 222 CHECK_ERROR_PTR(); 223 check_sljit_generate_code(compiler); 224 reverse_buf(compiler); 225 226 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins)); 227 PTR_FAIL_WITH_EXEC_IF(code); 228 buf = compiler->buf; 229 230 code_ptr = code; 231 word_count = 0; 232 label = compiler->labels; 233 jump = compiler->jumps; 234 const_ = compiler->consts; 235 236 do { 237 buf_ptr = (sljit_ins*)buf->memory; 238 buf_end = buf_ptr + (buf->used_size >> 2); 239 do { 240 *code_ptr = *buf_ptr++; 241 /* These structures are ordered by their address. */ 242 SLJIT_ASSERT(!label || label->size >= word_count); 243 SLJIT_ASSERT(!jump || jump->addr >= word_count); 244 SLJIT_ASSERT(!const_ || const_->addr >= word_count); 245 if (label && label->size == word_count) { 246 label->addr = (sljit_uw)code_ptr; 247 label->size = code_ptr - code; 248 label = label->next; 249 } 250 if (jump && jump->addr == word_count) { 251 jump->addr = (sljit_uw)(code_ptr - 4); 252 code_ptr -= detect_jump_type(jump, code_ptr, code); 253 jump = jump->next; 254 } 255 if (const_ && const_->addr == word_count) { 256 const_->addr = (sljit_uw)code_ptr; 257 const_ = const_->next; 258 } 259 code_ptr ++; 260 word_count ++; 261 } while (buf_ptr < buf_end); 262 263 buf = buf->next; 264 } while (buf); 265 266 if (label && label->size == word_count) { 267 label->addr = (sljit_uw)code_ptr; 268 label->size = code_ptr - code; 269 label = label->next; 270 } 271 272 SLJIT_ASSERT(!label); 273 SLJIT_ASSERT(!jump); 274 SLJIT_ASSERT(!const_); 275 SLJIT_ASSERT(code_ptr - code <= (sljit_sw)compiler->size); 276 277 jump = compiler->jumps; 278 while (jump) { 279 do { 280 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target; 281 buf_ptr = (sljit_ins*)jump->addr; 282 if (jump->flags & PATCH_B) { 283 addr = (sljit_sw)(addr - jump->addr) >> 2; 284 SLJIT_ASSERT((sljit_sw)addr <= 0x1ffffff && (sljit_sw)addr >= -0x2000000); 285 buf_ptr[0] = ((jump->flags & IS_BL) ? BL : B) | (addr & 0x3ffffff); 286 if (jump->flags & IS_COND) 287 buf_ptr[-1] -= (4 << 5); 288 break; 289 } 290 if (jump->flags & PATCH_COND) { 291 addr = (sljit_sw)(addr - jump->addr) >> 2; 292 SLJIT_ASSERT((sljit_sw)addr <= 0x3ffff && (sljit_sw)addr >= -0x40000); 293 buf_ptr[0] = (buf_ptr[0] & ~0xffffe0) | ((addr & 0x7ffff) << 5); 294 break; 295 } 296 297 SLJIT_ASSERT((jump->flags & (PATCH_ABS48 | PATCH_ABS64)) || addr <= 0xffffffffl); 298 SLJIT_ASSERT((jump->flags & PATCH_ABS64) || addr <= 0xffffffffffffl); 299 300 dst = buf_ptr[0] & 0x1f; 301 buf_ptr[0] = MOVZ | dst | ((addr & 0xffff) << 5); 302 buf_ptr[1] = MOVK | dst | (((addr >> 16) & 0xffff) << 5) | (1 << 21); 303 if (jump->flags & (PATCH_ABS48 | PATCH_ABS64)) 304 buf_ptr[2] = MOVK | dst | (((addr >> 32) & 0xffff) << 5) | (2 << 21); 305 if (jump->flags & PATCH_ABS64) 306 buf_ptr[3] = MOVK | dst | (((addr >> 48) & 0xffff) << 5) | (3 << 21); 307 } while (0); 308 jump = jump->next; 309 } 310 311 compiler->error = SLJIT_ERR_COMPILED; 312 compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins); 313 SLJIT_CACHE_FLUSH(code, code_ptr); 314 return code; 315} 316 317/* --------------------------------------------------------------------- */ 318/* Core code generator functions. */ 319/* --------------------------------------------------------------------- */ 320 321#define COUNT_TRAILING_ZERO(value, result) \ 322 result = 0; \ 323 if (!(value & 0xffffffff)) { \ 324 result += 32; \ 325 value >>= 32; \ 326 } \ 327 if (!(value & 0xffff)) { \ 328 result += 16; \ 329 value >>= 16; \ 330 } \ 331 if (!(value & 0xff)) { \ 332 result += 8; \ 333 value >>= 8; \ 334 } \ 335 if (!(value & 0xf)) { \ 336 result += 4; \ 337 value >>= 4; \ 338 } \ 339 if (!(value & 0x3)) { \ 340 result += 2; \ 341 value >>= 2; \ 342 } \ 343 if (!(value & 0x1)) { \ 344 result += 1; \ 345 value >>= 1; \ 346 } 347 348#define LOGICAL_IMM_CHECK 0x100 349 350static sljit_ins logical_imm(sljit_sw imm, sljit_si len) 351{ 352 sljit_si negated, ones, right; 353 sljit_uw mask, uimm; 354 sljit_ins ins; 355 356 if (len & LOGICAL_IMM_CHECK) { 357 len &= ~LOGICAL_IMM_CHECK; 358 if (len == 32 && (imm == 0 || imm == -1)) 359 return 0; 360 if (len == 16 && ((sljit_si)imm == 0 || (sljit_si)imm == -1)) 361 return 0; 362 } 363 364 SLJIT_ASSERT((len == 32 && imm != 0 && imm != -1) 365 || (len == 16 && (sljit_si)imm != 0 && (sljit_si)imm != -1)); 366 uimm = (sljit_uw)imm; 367 while (1) { 368 if (len <= 0) { 369 SLJIT_ASSERT_STOP(); 370 return 0; 371 } 372 mask = ((sljit_uw)1 << len) - 1; 373 if ((uimm & mask) != ((uimm >> len) & mask)) 374 break; 375 len >>= 1; 376 } 377 378 len <<= 1; 379 380 negated = 0; 381 if (uimm & 0x1) { 382 negated = 1; 383 uimm = ~uimm; 384 } 385 386 if (len < 64) 387 uimm &= ((sljit_uw)1 << len) - 1; 388 389 /* Unsigned right shift. */ 390 COUNT_TRAILING_ZERO(uimm, right); 391 392 /* Signed shift. We also know that the highest bit is set. */ 393 imm = (sljit_sw)~uimm; 394 SLJIT_ASSERT(imm < 0); 395 396 COUNT_TRAILING_ZERO(imm, ones); 397 398 if (~imm) 399 return 0; 400 401 if (len == 64) 402 ins = 1 << 22; 403 else 404 ins = (0x3f - ((len << 1) - 1)) << 10; 405 406 if (negated) 407 return ins | ((len - ones - 1) << 10) | ((len - ones - right) << 16); 408 409 return ins | ((ones - 1) << 10) | ((len - right) << 16); 410} 411 412#undef COUNT_TRAILING_ZERO 413 414static sljit_si load_immediate(struct sljit_compiler *compiler, sljit_si dst, sljit_sw simm) 415{ 416 sljit_uw imm = (sljit_uw)simm; 417 sljit_si i, zeros, ones, first; 418 sljit_ins bitmask; 419 420 if (imm <= 0xffff) 421 return push_inst(compiler, MOVZ | RD(dst) | (imm << 5)); 422 423 if (simm >= -0x10000 && simm < 0) 424 return push_inst(compiler, MOVN | RD(dst) | ((~imm & 0xffff) << 5)); 425 426 if (imm <= 0xffffffffl) { 427 if ((imm & 0xffff0000l) == 0xffff0000) 428 return push_inst(compiler, (MOVN ^ W_OP) | RD(dst) | ((~imm & 0xffff) << 5)); 429 if ((imm & 0xffff) == 0xffff) 430 return push_inst(compiler, (MOVN ^ W_OP) | RD(dst) | ((~imm & 0xffff0000l) >> (16 - 5)) | (1 << 21)); 431 bitmask = logical_imm(simm, 16); 432 if (bitmask != 0) 433 return push_inst(compiler, (ORRI ^ W_OP) | RD(dst) | RN(TMP_ZERO) | bitmask); 434 } 435 else { 436 bitmask = logical_imm(simm, 32); 437 if (bitmask != 0) 438 return push_inst(compiler, ORRI | RD(dst) | RN(TMP_ZERO) | bitmask); 439 } 440 441 if (imm <= 0xffffffffl) { 442 FAIL_IF(push_inst(compiler, MOVZ | RD(dst) | ((imm & 0xffff) << 5))); 443 return push_inst(compiler, MOVK | RD(dst) | ((imm & 0xffff0000l) >> (16 - 5)) | (1 << 21)); 444 } 445 446 if (simm >= -0x100000000l && simm < 0) { 447 FAIL_IF(push_inst(compiler, MOVN | RD(dst) | ((~imm & 0xffff) << 5))); 448 return push_inst(compiler, MOVK | RD(dst) | ((imm & 0xffff0000l) >> (16 - 5)) | (1 << 21)); 449 } 450 451 /* A large amount of number can be constructed from ORR and MOVx, 452 but computing them is costly. We don't */ 453 454 zeros = 0; 455 ones = 0; 456 for (i = 4; i > 0; i--) { 457 if ((simm & 0xffff) == 0) 458 zeros++; 459 if ((simm & 0xffff) == 0xffff) 460 ones++; 461 simm >>= 16; 462 } 463 464 simm = (sljit_sw)imm; 465 first = 1; 466 if (ones > zeros) { 467 simm = ~simm; 468 for (i = 0; i < 4; i++) { 469 if (!(simm & 0xffff)) { 470 simm >>= 16; 471 continue; 472 } 473 if (first) { 474 first = 0; 475 FAIL_IF(push_inst(compiler, MOVN | RD(dst) | ((simm & 0xffff) << 5) | (i << 21))); 476 } 477 else 478 FAIL_IF(push_inst(compiler, MOVK | RD(dst) | ((~simm & 0xffff) << 5) | (i << 21))); 479 simm >>= 16; 480 } 481 return SLJIT_SUCCESS; 482 } 483 484 for (i = 0; i < 4; i++) { 485 if (!(simm & 0xffff)) { 486 simm >>= 16; 487 continue; 488 } 489 if (first) { 490 first = 0; 491 FAIL_IF(push_inst(compiler, MOVZ | RD(dst) | ((simm & 0xffff) << 5) | (i << 21))); 492 } 493 else 494 FAIL_IF(push_inst(compiler, MOVK | RD(dst) | ((simm & 0xffff) << 5) | (i << 21))); 495 simm >>= 16; 496 } 497 return SLJIT_SUCCESS; 498} 499 500#define ARG1_IMM 0x0010000 501#define ARG2_IMM 0x0020000 502#define INT_OP 0x0040000 503#define SET_FLAGS 0x0080000 504#define UNUSED_RETURN 0x0100000 505#define SLOW_DEST 0x0200000 506#define SLOW_SRC1 0x0400000 507#define SLOW_SRC2 0x0800000 508 509#define CHECK_FLAGS(flag_bits) \ 510 if (flags & SET_FLAGS) { \ 511 inv_bits |= flag_bits; \ 512 if (flags & UNUSED_RETURN) \ 513 dst = TMP_ZERO; \ 514 } 515 516static sljit_si emit_op_imm(struct sljit_compiler *compiler, sljit_si flags, sljit_si dst, sljit_sw arg1, sljit_sw arg2) 517{ 518 /* dst must be register, TMP_REG1 519 arg1 must be register, TMP_REG1, imm 520 arg2 must be register, TMP_REG2, imm */ 521 sljit_ins inv_bits = (flags & INT_OP) ? (1 << 31) : 0; 522 sljit_ins inst_bits; 523 sljit_si op = (flags & 0xffff); 524 sljit_si reg; 525 sljit_sw imm, nimm; 526 527 if (SLJIT_UNLIKELY((flags & (ARG1_IMM | ARG2_IMM)) == (ARG1_IMM | ARG2_IMM))) { 528 /* Both are immediates. */ 529 flags &= ~ARG1_IMM; 530 if (arg1 == 0 && op != SLJIT_ADD && op != SLJIT_SUB) 531 arg1 = TMP_ZERO; 532 else { 533 FAIL_IF(load_immediate(compiler, TMP_REG1, arg1)); 534 arg1 = TMP_REG1; 535 } 536 } 537 538 if (flags & (ARG1_IMM | ARG2_IMM)) { 539 reg = (flags & ARG2_IMM) ? arg1 : arg2; 540 imm = (flags & ARG2_IMM) ? arg2 : arg1; 541 542 switch (op) { 543 case SLJIT_MUL: 544 case SLJIT_NEG: 545 case SLJIT_CLZ: 546 case SLJIT_ADDC: 547 case SLJIT_SUBC: 548 /* No form with immediate operand (except imm 0, which 549 is represented by a ZERO register). */ 550 break; 551 case SLJIT_MOV: 552 SLJIT_ASSERT(!(flags & SET_FLAGS) && (flags & ARG2_IMM) && arg1 == TMP_REG1); 553 return load_immediate(compiler, dst, imm); 554 case SLJIT_NOT: 555 SLJIT_ASSERT(flags & ARG2_IMM); 556 FAIL_IF(load_immediate(compiler, dst, (flags & INT_OP) ? (~imm & 0xffffffff) : ~imm)); 557 goto set_flags; 558 case SLJIT_SUB: 559 if (flags & ARG1_IMM) 560 break; 561 imm = -imm; 562 /* Fall through. */ 563 case SLJIT_ADD: 564 if (imm == 0) { 565 CHECK_FLAGS(1 << 29); 566 return push_inst(compiler, ((op == SLJIT_ADD ? ADDI : SUBI) ^ inv_bits) | RD(dst) | RN(reg)); 567 } 568 if (imm > 0 && imm <= 0xfff) { 569 CHECK_FLAGS(1 << 29); 570 return push_inst(compiler, (ADDI ^ inv_bits) | RD(dst) | RN(reg) | (imm << 10)); 571 } 572 nimm = -imm; 573 if (nimm > 0 && nimm <= 0xfff) { 574 CHECK_FLAGS(1 << 29); 575 return push_inst(compiler, (SUBI ^ inv_bits) | RD(dst) | RN(reg) | (nimm << 10)); 576 } 577 if (imm > 0 && imm <= 0xffffff && !(imm & 0xfff)) { 578 CHECK_FLAGS(1 << 29); 579 return push_inst(compiler, (ADDI ^ inv_bits) | RD(dst) | RN(reg) | ((imm >> 12) << 10) | (1 << 22)); 580 } 581 if (nimm > 0 && nimm <= 0xffffff && !(nimm & 0xfff)) { 582 CHECK_FLAGS(1 << 29); 583 return push_inst(compiler, (SUBI ^ inv_bits) | RD(dst) | RN(reg) | ((nimm >> 12) << 10) | (1 << 22)); 584 } 585 if (imm > 0 && imm <= 0xffffff && !(flags & SET_FLAGS)) { 586 FAIL_IF(push_inst(compiler, (ADDI ^ inv_bits) | RD(dst) | RN(reg) | ((imm >> 12) << 10) | (1 << 22))); 587 return push_inst(compiler, (ADDI ^ inv_bits) | RD(dst) | RN(dst) | ((imm & 0xfff) << 10)); 588 } 589 if (nimm > 0 && nimm <= 0xffffff && !(flags & SET_FLAGS)) { 590 FAIL_IF(push_inst(compiler, (SUBI ^ inv_bits) | RD(dst) | RN(reg) | ((nimm >> 12) << 10) | (1 << 22))); 591 return push_inst(compiler, (SUBI ^ inv_bits) | RD(dst) | RN(dst) | ((nimm & 0xfff) << 10)); 592 } 593 break; 594 case SLJIT_AND: 595 inst_bits = logical_imm(imm, LOGICAL_IMM_CHECK | ((flags & INT_OP) ? 16 : 32)); 596 if (!inst_bits) 597 break; 598 CHECK_FLAGS(3 << 29); 599 return push_inst(compiler, (ANDI ^ inv_bits) | RD(dst) | RN(reg) | inst_bits); 600 case SLJIT_OR: 601 case SLJIT_XOR: 602 inst_bits = logical_imm(imm, LOGICAL_IMM_CHECK | ((flags & INT_OP) ? 16 : 32)); 603 if (!inst_bits) 604 break; 605 if (op == SLJIT_OR) 606 inst_bits |= ORRI; 607 else 608 inst_bits |= EORI; 609 FAIL_IF(push_inst(compiler, (inst_bits ^ inv_bits) | RD(dst) | RN(reg))); 610 goto set_flags; 611 case SLJIT_SHL: 612 if (flags & ARG1_IMM) 613 break; 614 if (flags & INT_OP) { 615 imm &= 0x1f; 616 FAIL_IF(push_inst(compiler, (UBFM ^ inv_bits) | RD(dst) | RN(arg1) | ((-imm & 0x1f) << 16) | ((31 - imm) << 10))); 617 } 618 else { 619 imm &= 0x3f; 620 FAIL_IF(push_inst(compiler, (UBFM ^ inv_bits) | RD(dst) | RN(arg1) | (1 << 22) | ((-imm & 0x3f) << 16) | ((63 - imm) << 10))); 621 } 622 goto set_flags; 623 case SLJIT_LSHR: 624 case SLJIT_ASHR: 625 if (flags & ARG1_IMM) 626 break; 627 if (op == SLJIT_ASHR) 628 inv_bits |= 1 << 30; 629 if (flags & INT_OP) { 630 imm &= 0x1f; 631 FAIL_IF(push_inst(compiler, (UBFM ^ inv_bits) | RD(dst) | RN(arg1) | (imm << 16) | (31 << 10))); 632 } 633 else { 634 imm &= 0x3f; 635 FAIL_IF(push_inst(compiler, (UBFM ^ inv_bits) | RD(dst) | RN(arg1) | (1 << 22) | (imm << 16) | (63 << 10))); 636 } 637 goto set_flags; 638 default: 639 SLJIT_ASSERT_STOP(); 640 break; 641 } 642 643 if (flags & ARG2_IMM) { 644 if (arg2 == 0) 645 arg2 = TMP_ZERO; 646 else { 647 FAIL_IF(load_immediate(compiler, TMP_REG2, arg2)); 648 arg2 = TMP_REG2; 649 } 650 } 651 else { 652 if (arg1 == 0) 653 arg1 = TMP_ZERO; 654 else { 655 FAIL_IF(load_immediate(compiler, TMP_REG1, arg1)); 656 arg1 = TMP_REG1; 657 } 658 } 659 } 660 661 /* Both arguments are registers. */ 662 switch (op) { 663 case SLJIT_MOV: 664 case SLJIT_MOV_P: 665 case SLJIT_MOVU: 666 case SLJIT_MOVU_P: 667 SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1); 668 if (dst == arg2) 669 return SLJIT_SUCCESS; 670 return push_inst(compiler, ORR | RD(dst) | RN(TMP_ZERO) | RM(arg2)); 671 case SLJIT_MOV_UB: 672 case SLJIT_MOVU_UB: 673 SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1); 674 return push_inst(compiler, (UBFM ^ (1 << 31)) | RD(dst) | RN(arg2) | (7 << 10)); 675 case SLJIT_MOV_SB: 676 case SLJIT_MOVU_SB: 677 SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1); 678 if (!(flags & INT_OP)) 679 inv_bits |= 1 << 22; 680 return push_inst(compiler, (SBFM ^ inv_bits) | RD(dst) | RN(arg2) | (7 << 10)); 681 case SLJIT_MOV_UH: 682 case SLJIT_MOVU_UH: 683 SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1); 684 return push_inst(compiler, (UBFM ^ (1 << 31)) | RD(dst) | RN(arg2) | (15 << 10)); 685 case SLJIT_MOV_SH: 686 case SLJIT_MOVU_SH: 687 SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1); 688 if (!(flags & INT_OP)) 689 inv_bits |= 1 << 22; 690 return push_inst(compiler, (SBFM ^ inv_bits) | RD(dst) | RN(arg2) | (15 << 10)); 691 case SLJIT_MOV_UI: 692 case SLJIT_MOVU_UI: 693 SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1); 694 if ((flags & INT_OP) && dst == arg2) 695 return SLJIT_SUCCESS; 696 return push_inst(compiler, (ORR ^ (1 << 31)) | RD(dst) | RN(TMP_ZERO) | RM(arg2)); 697 case SLJIT_MOV_SI: 698 case SLJIT_MOVU_SI: 699 SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1); 700 if ((flags & INT_OP) && dst == arg2) 701 return SLJIT_SUCCESS; 702 return push_inst(compiler, SBFM | (1 << 22) | RD(dst) | RN(arg2) | (31 << 10)); 703 case SLJIT_NOT: 704 SLJIT_ASSERT(arg1 == TMP_REG1); 705 FAIL_IF(push_inst(compiler, (ORN ^ inv_bits) | RD(dst) | RN(TMP_ZERO) | RM(arg2))); 706 goto set_flags; 707 case SLJIT_NEG: 708 SLJIT_ASSERT(arg1 == TMP_REG1); 709 if (flags & SET_FLAGS) 710 inv_bits |= 1 << 29; 711 return push_inst(compiler, (SUB ^ inv_bits) | RD(dst) | RN(TMP_ZERO) | RM(arg2)); 712 case SLJIT_CLZ: 713 SLJIT_ASSERT(arg1 == TMP_REG1); 714 FAIL_IF(push_inst(compiler, (CLZ ^ inv_bits) | RD(dst) | RN(arg2))); 715 goto set_flags; 716 case SLJIT_ADD: 717 CHECK_FLAGS(1 << 29); 718 return push_inst(compiler, (ADD ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)); 719 case SLJIT_ADDC: 720 CHECK_FLAGS(1 << 29); 721 return push_inst(compiler, (ADC ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)); 722 case SLJIT_SUB: 723 CHECK_FLAGS(1 << 29); 724 return push_inst(compiler, (SUB ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)); 725 case SLJIT_SUBC: 726 CHECK_FLAGS(1 << 29); 727 return push_inst(compiler, (SBC ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)); 728 case SLJIT_MUL: 729 if (!(flags & SET_FLAGS)) 730 return push_inst(compiler, (MADD ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2) | RT2(TMP_ZERO)); 731 if (flags & INT_OP) { 732 FAIL_IF(push_inst(compiler, SMADDL | RD(dst) | RN(arg1) | RM(arg2) | (31 << 10))); 733 FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG4) | RN(TMP_ZERO) | RM(dst) | (2 << 22) | (31 << 10))); 734 return push_inst(compiler, SUBS | RD(TMP_ZERO) | RN(TMP_REG4) | RM(dst) | (2 << 22) | (63 << 10)); 735 } 736 FAIL_IF(push_inst(compiler, SMULH | RD(TMP_REG4) | RN(arg1) | RM(arg2))); 737 FAIL_IF(push_inst(compiler, MADD | RD(dst) | RN(arg1) | RM(arg2) | RT2(TMP_ZERO))); 738 return push_inst(compiler, SUBS | RD(TMP_ZERO) | RN(TMP_REG4) | RM(dst) | (2 << 22) | (63 << 10)); 739 case SLJIT_AND: 740 CHECK_FLAGS(3 << 29); 741 return push_inst(compiler, (AND ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)); 742 case SLJIT_OR: 743 FAIL_IF(push_inst(compiler, (ORR ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2))); 744 goto set_flags; 745 case SLJIT_XOR: 746 FAIL_IF(push_inst(compiler, (EOR ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2))); 747 goto set_flags; 748 case SLJIT_SHL: 749 FAIL_IF(push_inst(compiler, (LSLV ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2))); 750 goto set_flags; 751 case SLJIT_LSHR: 752 FAIL_IF(push_inst(compiler, (LSRV ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2))); 753 goto set_flags; 754 case SLJIT_ASHR: 755 FAIL_IF(push_inst(compiler, (ASRV ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2))); 756 goto set_flags; 757 } 758 759 SLJIT_ASSERT_STOP(); 760 return SLJIT_SUCCESS; 761 762set_flags: 763 if (flags & SET_FLAGS) 764 return push_inst(compiler, (SUBS ^ inv_bits) | RD(TMP_ZERO) | RN(dst) | RM(TMP_ZERO)); 765 return SLJIT_SUCCESS; 766} 767 768#define STORE 0x01 769#define SIGNED 0x02 770 771#define UPDATE 0x04 772#define ARG_TEST 0x08 773 774#define BYTE_SIZE 0x000 775#define HALF_SIZE 0x100 776#define INT_SIZE 0x200 777#define WORD_SIZE 0x300 778 779#define MEM_SIZE_SHIFT(flags) ((flags) >> 8) 780 781static SLJIT_CONST sljit_ins sljit_mem_imm[4] = { 782/* u l */ 0x39400000 /* ldrb [reg,imm] */, 783/* u s */ 0x39000000 /* strb [reg,imm] */, 784/* s l */ 0x39800000 /* ldrsb [reg,imm] */, 785/* s s */ 0x39000000 /* strb [reg,imm] */, 786}; 787 788static SLJIT_CONST sljit_ins sljit_mem_simm[4] = { 789/* u l */ 0x38400000 /* ldurb [reg,imm] */, 790/* u s */ 0x38000000 /* sturb [reg,imm] */, 791/* s l */ 0x38800000 /* ldursb [reg,imm] */, 792/* s s */ 0x38000000 /* sturb [reg,imm] */, 793}; 794 795static SLJIT_CONST sljit_ins sljit_mem_pre_simm[4] = { 796/* u l */ 0x38400c00 /* ldrb [reg,imm]! */, 797/* u s */ 0x38000c00 /* strb [reg,imm]! */, 798/* s l */ 0x38800c00 /* ldrsb [reg,imm]! */, 799/* s s */ 0x38000c00 /* strb [reg,imm]! */, 800}; 801 802static SLJIT_CONST sljit_ins sljit_mem_reg[4] = { 803/* u l */ 0x38606800 /* ldrb [reg,reg] */, 804/* u s */ 0x38206800 /* strb [reg,reg] */, 805/* s l */ 0x38a06800 /* ldrsb [reg,reg] */, 806/* s s */ 0x38206800 /* strb [reg,reg] */, 807}; 808 809/* Helper function. Dst should be reg + value, using at most 1 instruction, flags does not set. */ 810static sljit_si emit_set_delta(struct sljit_compiler *compiler, sljit_si dst, sljit_si reg, sljit_sw value) 811{ 812 if (value >= 0) { 813 if (value <= 0xfff) 814 return push_inst(compiler, ADDI | RD(dst) | RN(reg) | (value << 10)); 815 if (value <= 0xffffff && !(value & 0xfff)) 816 return push_inst(compiler, ADDI | (1 << 22) | RD(dst) | RN(reg) | (value >> 2)); 817 } 818 else { 819 value = -value; 820 if (value <= 0xfff) 821 return push_inst(compiler, SUBI | RD(dst) | RN(reg) | (value << 10)); 822 if (value <= 0xffffff && !(value & 0xfff)) 823 return push_inst(compiler, SUBI | (1 << 22) | RD(dst) | RN(reg) | (value >> 2)); 824 } 825 return SLJIT_ERR_UNSUPPORTED; 826} 827 828/* Can perform an operation using at most 1 instruction. */ 829static sljit_si getput_arg_fast(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw) 830{ 831 sljit_ui shift = MEM_SIZE_SHIFT(flags); 832 833 SLJIT_ASSERT(arg & SLJIT_MEM); 834 835 if (SLJIT_UNLIKELY(flags & UPDATE)) { 836 if ((arg & REG_MASK) && !(arg & OFFS_REG_MASK) && argw <= 255 && argw >= -256) { 837 if (SLJIT_UNLIKELY(flags & ARG_TEST)) 838 return 1; 839 840 arg &= REG_MASK; 841 argw &= 0x1ff; 842 FAIL_IF(push_inst(compiler, sljit_mem_pre_simm[flags & 0x3] 843 | (shift << 30) | RT(reg) | RN(arg) | (argw << 12))); 844 return -1; 845 } 846 return 0; 847 } 848 849 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) { 850 argw &= 0x3; 851 if (argw && argw != shift) 852 return 0; 853 854 if (SLJIT_UNLIKELY(flags & ARG_TEST)) 855 return 1; 856 857 FAIL_IF(push_inst(compiler, sljit_mem_reg[flags & 0x3] | (shift << 30) | RT(reg) 858 | RN(arg & REG_MASK) | RM(OFFS_REG(arg)) | (argw ? (1 << 12) : 0))); 859 return -1; 860 } 861 862 arg &= REG_MASK; 863 if (argw >= 0 && (argw >> shift) <= 0xfff && (argw & ((1 << shift) - 1)) == 0) { 864 if (SLJIT_UNLIKELY(flags & ARG_TEST)) 865 return 1; 866 867 FAIL_IF(push_inst(compiler, sljit_mem_imm[flags & 0x3] | (shift << 30) 868 | RT(reg) | RN(arg) | (argw << (10 - shift)))); 869 return -1; 870 } 871 872 if (argw > 255 || argw < -256) 873 return 0; 874 875 if (SLJIT_UNLIKELY(flags & ARG_TEST)) 876 return 1; 877 878 FAIL_IF(push_inst(compiler, sljit_mem_simm[flags & 0x3] | (shift << 30) 879 | RT(reg) | RN(arg) | ((argw & 0x1ff) << 12))); 880 return -1; 881} 882 883/* see getput_arg below. 884 Note: can_cache is called only for binary operators. Those 885 operators always uses word arguments without write back. */ 886static sljit_si can_cache(sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw) 887{ 888 sljit_sw diff; 889 if ((arg & OFFS_REG_MASK) || !(next_arg & SLJIT_MEM)) 890 return 0; 891 892 if (!(arg & REG_MASK)) { 893 diff = argw - next_argw; 894 if (diff <= 0xfff && diff >= -0xfff) 895 return 1; 896 return 0; 897 } 898 899 if (argw == next_argw) 900 return 1; 901 902 diff = argw - next_argw; 903 if (arg == next_arg && diff <= 0xfff && diff >= -0xfff) 904 return 1; 905 906 return 0; 907} 908 909/* Emit the necessary instructions. See can_cache above. */ 910static sljit_si getput_arg(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, 911 sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw) 912{ 913 sljit_ui shift = MEM_SIZE_SHIFT(flags); 914 sljit_si tmp_r, other_r; 915 sljit_sw diff; 916 917 SLJIT_ASSERT(arg & SLJIT_MEM); 918 if (!(next_arg & SLJIT_MEM)) { 919 next_arg = 0; 920 next_argw = 0; 921 } 922 923 tmp_r = (flags & STORE) ? TMP_REG3 : reg; 924 925 if (SLJIT_UNLIKELY((flags & UPDATE) && (arg & REG_MASK))) { 926 /* Update only applies if a base register exists. */ 927 other_r = OFFS_REG(arg); 928 if (!other_r) { 929 other_r = arg & REG_MASK; 930 if (other_r != reg && argw >= 0 && argw <= 0xffffff) { 931 if ((argw & 0xfff) != 0) 932 FAIL_IF(push_inst(compiler, ADDI | RD(other_r) | RN(other_r) | ((argw & 0xfff) << 10))); 933 if (argw >> 12) 934 FAIL_IF(push_inst(compiler, ADDI | (1 << 22) | RD(other_r) | RN(other_r) | ((argw >> 12) << 10))); 935 return push_inst(compiler, sljit_mem_imm[flags & 0x3] | (shift << 30) | RT(reg) | RN(other_r)); 936 } 937 else if (other_r != reg && argw < 0 && argw >= -0xffffff) { 938 argw = -argw; 939 if ((argw & 0xfff) != 0) 940 FAIL_IF(push_inst(compiler, SUBI | RD(other_r) | RN(other_r) | ((argw & 0xfff) << 10))); 941 if (argw >> 12) 942 FAIL_IF(push_inst(compiler, SUBI | (1 << 22) | RD(other_r) | RN(other_r) | ((argw >> 12) << 10))); 943 return push_inst(compiler, sljit_mem_imm[flags & 0x3] | (shift << 30) | RT(reg) | RN(other_r)); 944 } 945 946 if (compiler->cache_arg == SLJIT_MEM) { 947 if (argw == compiler->cache_argw) { 948 other_r = TMP_REG3; 949 argw = 0; 950 } 951 else if (emit_set_delta(compiler, TMP_REG3, TMP_REG3, argw - compiler->cache_argw) != SLJIT_ERR_UNSUPPORTED) { 952 FAIL_IF(compiler->error); 953 compiler->cache_argw = argw; 954 other_r = TMP_REG3; 955 argw = 0; 956 } 957 } 958 959 if (argw) { 960 FAIL_IF(load_immediate(compiler, TMP_REG3, argw)); 961 compiler->cache_arg = SLJIT_MEM; 962 compiler->cache_argw = argw; 963 other_r = TMP_REG3; 964 argw = 0; 965 } 966 } 967 968 /* No caching here. */ 969 arg &= REG_MASK; 970 argw &= 0x3; 971 if (!argw || argw == shift) { 972 FAIL_IF(push_inst(compiler, sljit_mem_reg[flags & 0x3] | (shift << 30) | RT(reg) | RN(arg) | RM(other_r) | (argw ? (1 << 12) : 0))); 973 return push_inst(compiler, ADD | RD(arg) | RN(arg) | RM(other_r) | (argw << 10)); 974 } 975 if (arg != reg) { 976 FAIL_IF(push_inst(compiler, ADD | RD(arg) | RN(arg) | RM(other_r) | (argw << 10))); 977 return push_inst(compiler, sljit_mem_imm[flags & 0x3] | (shift << 30) | RT(reg) | RN(arg)); 978 } 979 FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG4) | RN(arg) | RM(other_r) | (argw << 10))); 980 FAIL_IF(push_inst(compiler, sljit_mem_imm[flags & 0x3] | (shift << 30) | RT(reg) | RN(TMP_REG4))); 981 return push_inst(compiler, ORR | RD(arg) | RN(TMP_ZERO) | RM(TMP_REG4)); 982 } 983 984 if (arg & OFFS_REG_MASK) { 985 other_r = OFFS_REG(arg); 986 arg &= REG_MASK; 987 FAIL_IF(push_inst(compiler, ADD | RD(tmp_r) | RN(arg) | RM(other_r) | ((argw & 0x3) << 10))); 988 return push_inst(compiler, sljit_mem_imm[flags & 0x3] | (shift << 30) | RT(reg) | RN(tmp_r)); 989 } 990 991 if (compiler->cache_arg == arg) { 992 diff = argw - compiler->cache_argw; 993 if (diff <= 255 && diff >= -256) 994 return push_inst(compiler, sljit_mem_simm[flags & 0x3] | (shift << 30) 995 | RT(reg) | RN(TMP_REG3) | ((diff & 0x1ff) << 12)); 996 if (emit_set_delta(compiler, TMP_REG3, TMP_REG3, diff) != SLJIT_ERR_UNSUPPORTED) { 997 FAIL_IF(compiler->error); 998 return push_inst(compiler, sljit_mem_imm[flags & 0x3] | (shift << 30) | RT(reg) | RN(arg)); 999 } 1000 } 1001 1002 if (argw >= 0 && argw <= 0xffffff && (argw & ((1 << shift) - 1)) == 0) { 1003 FAIL_IF(push_inst(compiler, ADDI | (1 << 22) | RD(tmp_r) | RN(arg & REG_MASK) | ((argw >> 12) << 10))); 1004 return push_inst(compiler, sljit_mem_imm[flags & 0x3] | (shift << 30) 1005 | RT(reg) | RN(tmp_r) | ((argw & 0xfff) << (10 - shift))); 1006 } 1007 1008 diff = argw - next_argw; 1009 next_arg = (arg & REG_MASK) && (arg == next_arg) && diff <= 0xfff && diff >= -0xfff && diff != 0; 1010 arg &= REG_MASK; 1011 1012 if (arg && compiler->cache_arg == SLJIT_MEM) { 1013 if (compiler->cache_argw == argw) 1014 return push_inst(compiler, sljit_mem_reg[flags & 0x3] | (shift << 30) | RT(reg) | RN(arg) | RM(TMP_REG3)); 1015 if (emit_set_delta(compiler, TMP_REG3, TMP_REG3, argw - compiler->cache_argw) != SLJIT_ERR_UNSUPPORTED) { 1016 FAIL_IF(compiler->error); 1017 compiler->cache_argw = argw; 1018 return push_inst(compiler, sljit_mem_reg[flags & 0x3] | (shift << 30) | RT(reg) | RN(arg) | RM(TMP_REG3)); 1019 } 1020 } 1021 1022 compiler->cache_argw = argw; 1023 if (next_arg && emit_set_delta(compiler, TMP_REG3, arg, argw) != SLJIT_ERR_UNSUPPORTED) { 1024 FAIL_IF(compiler->error); 1025 compiler->cache_arg = SLJIT_MEM | arg; 1026 arg = 0; 1027 } 1028 else { 1029 FAIL_IF(load_immediate(compiler, TMP_REG3, argw)); 1030 compiler->cache_arg = SLJIT_MEM; 1031 1032 if (next_arg) { 1033 FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG3) | RN(TMP_REG3) | RM(arg))); 1034 compiler->cache_arg = SLJIT_MEM | arg; 1035 arg = 0; 1036 } 1037 } 1038 1039 if (arg) 1040 return push_inst(compiler, sljit_mem_reg[flags & 0x3] | (shift << 30) | RT(reg) | RN(arg) | RM(TMP_REG3)); 1041 return push_inst(compiler, sljit_mem_imm[flags & 0x3] | (shift << 30) | RT(reg) | RN(TMP_REG3)); 1042} 1043 1044static SLJIT_INLINE sljit_si emit_op_mem(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw) 1045{ 1046 if (getput_arg_fast(compiler, flags, reg, arg, argw)) 1047 return compiler->error; 1048 compiler->cache_arg = 0; 1049 compiler->cache_argw = 0; 1050 return getput_arg(compiler, flags, reg, arg, argw, 0, 0); 1051} 1052 1053static SLJIT_INLINE sljit_si emit_op_mem2(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg1, sljit_sw arg1w, sljit_si arg2, sljit_sw arg2w) 1054{ 1055 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w)) 1056 return compiler->error; 1057 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w); 1058} 1059 1060/* --------------------------------------------------------------------- */ 1061/* Entry, exit */ 1062/* --------------------------------------------------------------------- */ 1063 1064SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_enter(struct sljit_compiler *compiler, 1065 sljit_si options, sljit_si args, sljit_si scratches, sljit_si saveds, 1066 sljit_si fscratches, sljit_si fsaveds, sljit_si local_size) 1067{ 1068 sljit_si i, tmp, offs, prev; 1069 1070 CHECK_ERROR(); 1071 check_sljit_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size); 1072 1073 compiler->options = options; 1074 compiler->scratches = scratches; 1075 compiler->saveds = saveds; 1076 compiler->fscratches = fscratches; 1077 compiler->fsaveds = fsaveds; 1078#if (defined SLJIT_DEBUG && SLJIT_DEBUG) 1079 compiler->logical_local_size = local_size; 1080#endif 1081 compiler->locals_offset = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 2); 1082 local_size = (compiler->locals_offset + local_size + 15) & ~15; 1083 compiler->local_size = local_size; 1084 1085 if (local_size <= (64 << 3)) 1086 FAIL_IF(push_inst(compiler, STP_PRE | 29 | RT2(TMP_LR) 1087 | RN(TMP_SP) | ((-(local_size >> 3) & 0x7f) << 15))); 1088 else { 1089 local_size -= (64 << 3); 1090 if (local_size > 0xfff) { 1091 FAIL_IF(push_inst(compiler, SUBI | RD(TMP_SP) | RN(TMP_SP) | ((local_size >> 12) << 10) | (1 << 22))); 1092 local_size &= 0xfff; 1093 } 1094 if (local_size) 1095 FAIL_IF(push_inst(compiler, SUBI | RD(TMP_SP) | RN(TMP_SP) | (local_size << 10))); 1096 FAIL_IF(push_inst(compiler, STP_PRE | 29 | RT2(TMP_LR) | RN(TMP_SP) | (0x40 << 15))); 1097 } 1098 1099 FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_SP) | RN(TMP_SP))); 1100 1101 tmp = saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - saveds) : SLJIT_FIRST_SAVED_REG; 1102 offs = 2 << 15; 1103 prev = -1; 1104 for (i = SLJIT_S0; i >= tmp; i--) { 1105 if (prev == -1) { 1106 prev = i; 1107 continue; 1108 } 1109 FAIL_IF(push_inst(compiler, STP | RT(prev) | RT2(i) | RN(TMP_SP) | offs)); 1110 offs += 2 << 15; 1111 prev = -1; 1112 } 1113 1114 for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--) { 1115 if (prev == -1) { 1116 prev = i; 1117 continue; 1118 } 1119 FAIL_IF(push_inst(compiler, STP | RT(prev) | RT2(i) | RN(TMP_SP) | offs)); 1120 offs += 2 << 15; 1121 prev = -1; 1122 } 1123 1124 if (prev != -1) 1125 FAIL_IF(push_inst(compiler, STRI | RT(prev) | RN(TMP_SP) | (offs >> 5))); 1126 1127 if (args >= 1) 1128 FAIL_IF(push_inst(compiler, ORR | RD(SLJIT_S0) | RN(TMP_ZERO) | RM(SLJIT_R0))); 1129 if (args >= 2) 1130 FAIL_IF(push_inst(compiler, ORR | RD(SLJIT_S1) | RN(TMP_ZERO) | RM(SLJIT_R1))); 1131 if (args >= 3) 1132 FAIL_IF(push_inst(compiler, ORR | RD(SLJIT_S2) | RN(TMP_ZERO) | RM(SLJIT_R2))); 1133 1134 return SLJIT_SUCCESS; 1135} 1136 1137SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, 1138 sljit_si options, sljit_si args, sljit_si scratches, sljit_si saveds, 1139 sljit_si fscratches, sljit_si fsaveds, sljit_si local_size) 1140{ 1141 CHECK_ERROR_VOID(); 1142 check_sljit_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size); 1143 1144 compiler->options = options; 1145 compiler->scratches = scratches; 1146 compiler->saveds = saveds; 1147 compiler->fscratches = fscratches; 1148 compiler->fsaveds = fsaveds; 1149#if (defined SLJIT_DEBUG && SLJIT_DEBUG) 1150 compiler->logical_local_size = local_size; 1151#endif 1152 compiler->locals_offset = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 2); 1153 compiler->local_size = (compiler->locals_offset + local_size + 15) & ~15; 1154} 1155 1156SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_return(struct sljit_compiler *compiler, sljit_si op, sljit_si src, sljit_sw srcw) 1157{ 1158 sljit_si local_size; 1159 sljit_si i, tmp, offs, prev; 1160 1161 CHECK_ERROR(); 1162 check_sljit_emit_return(compiler, op, src, srcw); 1163 1164 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw)); 1165 1166 tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG; 1167 offs = 2 << 15; 1168 prev = -1; 1169 for (i = SLJIT_S0; i >= tmp; i--) { 1170 if (prev == -1) { 1171 prev = i; 1172 continue; 1173 } 1174 FAIL_IF(push_inst(compiler, LDP | RT(prev) | RT2(i) | RN(TMP_SP) | offs)); 1175 offs += 2 << 15; 1176 prev = -1; 1177 } 1178 1179 for (i = compiler->scratches; i >= SLJIT_FIRST_SAVED_REG; i--) { 1180 if (prev == -1) { 1181 prev = i; 1182 continue; 1183 } 1184 FAIL_IF(push_inst(compiler, LDP | RT(prev) | RT2(i) | RN(TMP_SP) | offs)); 1185 offs += 2 << 15; 1186 prev = -1; 1187 } 1188 1189 if (prev != -1) 1190 FAIL_IF(push_inst(compiler, LDRI | RT(prev) | RN(TMP_SP) | (offs >> 5))); 1191 1192 local_size = compiler->local_size; 1193 1194 if (local_size <= (62 << 3)) 1195 FAIL_IF(push_inst(compiler, LDP_PST | 29 | RT2(TMP_LR) 1196 | RN(TMP_SP) | (((local_size >> 3) & 0x7f) << 15))); 1197 else { 1198 FAIL_IF(push_inst(compiler, LDP_PST | 29 | RT2(TMP_LR) | RN(TMP_SP) | (0x3e << 15))); 1199 local_size -= (62 << 3); 1200 if (local_size > 0xfff) { 1201 FAIL_IF(push_inst(compiler, ADDI | RD(TMP_SP) | RN(TMP_SP) | ((local_size >> 12) << 10) | (1 << 22))); 1202 local_size &= 0xfff; 1203 } 1204 if (local_size) 1205 FAIL_IF(push_inst(compiler, ADDI | RD(TMP_SP) | RN(TMP_SP) | (local_size << 10))); 1206 } 1207 1208 FAIL_IF(push_inst(compiler, RET | RN(TMP_LR))); 1209 return SLJIT_SUCCESS; 1210} 1211 1212/* --------------------------------------------------------------------- */ 1213/* Operators */ 1214/* --------------------------------------------------------------------- */ 1215 1216SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op0(struct sljit_compiler *compiler, sljit_si op) 1217{ 1218 sljit_ins inv_bits = (op & SLJIT_INT_OP) ? (1 << 31) : 0; 1219 1220 CHECK_ERROR(); 1221 check_sljit_emit_op0(compiler, op); 1222 1223 op = GET_OPCODE(op); 1224 switch (op) { 1225 case SLJIT_BREAKPOINT: 1226 return push_inst(compiler, BRK); 1227 case SLJIT_NOP: 1228 return push_inst(compiler, NOP); 1229 case SLJIT_UMUL: 1230 case SLJIT_SMUL: 1231 FAIL_IF(push_inst(compiler, ORR | RD(TMP_REG1) | RN(TMP_ZERO) | RM(SLJIT_R0))); 1232 FAIL_IF(push_inst(compiler, MADD | RD(SLJIT_R0) | RN(SLJIT_R0) | RM(SLJIT_R1) | RT2(TMP_ZERO))); 1233 return push_inst(compiler, (op == SLJIT_SMUL ? SMULH : UMULH) | RD(SLJIT_R1) | RN(TMP_REG1) | RM(SLJIT_R1)); 1234 case SLJIT_UDIV: 1235 case SLJIT_SDIV: 1236 FAIL_IF(push_inst(compiler, (ORR ^ inv_bits) | RD(TMP_REG1) | RN(TMP_ZERO) | RM(SLJIT_R0))); 1237 FAIL_IF(push_inst(compiler, ((op == SLJIT_SDIV ? SDIV : UDIV) ^ inv_bits) | RD(SLJIT_R0) | RN(SLJIT_R0) | RM(SLJIT_R1))); 1238 FAIL_IF(push_inst(compiler, (MADD ^ inv_bits) | RD(SLJIT_R1) | RN(SLJIT_R0) | RM(SLJIT_R1) | RT2(TMP_ZERO))); 1239 return push_inst(compiler, (SUB ^ inv_bits) | RD(SLJIT_R1) | RN(TMP_REG1) | RM(SLJIT_R1)); 1240 } 1241 1242 return SLJIT_SUCCESS; 1243} 1244 1245SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op1(struct sljit_compiler *compiler, sljit_si op, 1246 sljit_si dst, sljit_sw dstw, 1247 sljit_si src, sljit_sw srcw) 1248{ 1249 sljit_si dst_r, flags, mem_flags; 1250 sljit_si op_flags = GET_ALL_FLAGS(op); 1251 1252 CHECK_ERROR(); 1253 check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw); 1254 ADJUST_LOCAL_OFFSET(dst, dstw); 1255 ADJUST_LOCAL_OFFSET(src, srcw); 1256 1257 compiler->cache_arg = 0; 1258 compiler->cache_argw = 0; 1259 1260 dst_r = SLOW_IS_REG(dst) ? dst : TMP_REG1; 1261 1262 op = GET_OPCODE(op); 1263 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_P) { 1264 switch (op) { 1265 case SLJIT_MOV: 1266 case SLJIT_MOV_P: 1267 flags = WORD_SIZE; 1268 break; 1269 case SLJIT_MOV_UB: 1270 flags = BYTE_SIZE; 1271 if (src & SLJIT_IMM) 1272 srcw = (sljit_ub)srcw; 1273 break; 1274 case SLJIT_MOV_SB: 1275 flags = BYTE_SIZE | SIGNED; 1276 if (src & SLJIT_IMM) 1277 srcw = (sljit_sb)srcw; 1278 break; 1279 case SLJIT_MOV_UH: 1280 flags = HALF_SIZE; 1281 if (src & SLJIT_IMM) 1282 srcw = (sljit_uh)srcw; 1283 break; 1284 case SLJIT_MOV_SH: 1285 flags = HALF_SIZE | SIGNED; 1286 if (src & SLJIT_IMM) 1287 srcw = (sljit_sh)srcw; 1288 break; 1289 case SLJIT_MOV_UI: 1290 flags = INT_SIZE; 1291 if (src & SLJIT_IMM) 1292 srcw = (sljit_ui)srcw; 1293 break; 1294 case SLJIT_MOV_SI: 1295 flags = INT_SIZE | SIGNED; 1296 if (src & SLJIT_IMM) 1297 srcw = (sljit_si)srcw; 1298 break; 1299 case SLJIT_MOVU: 1300 case SLJIT_MOVU_P: 1301 flags = WORD_SIZE | UPDATE; 1302 break; 1303 case SLJIT_MOVU_UB: 1304 flags = BYTE_SIZE | UPDATE; 1305 if (src & SLJIT_IMM) 1306 srcw = (sljit_ub)srcw; 1307 break; 1308 case SLJIT_MOVU_SB: 1309 flags = BYTE_SIZE | SIGNED | UPDATE; 1310 if (src & SLJIT_IMM) 1311 srcw = (sljit_sb)srcw; 1312 break; 1313 case SLJIT_MOVU_UH: 1314 flags = HALF_SIZE | UPDATE; 1315 if (src & SLJIT_IMM) 1316 srcw = (sljit_uh)srcw; 1317 break; 1318 case SLJIT_MOVU_SH: 1319 flags = HALF_SIZE | SIGNED | UPDATE; 1320 if (src & SLJIT_IMM) 1321 srcw = (sljit_sh)srcw; 1322 break; 1323 case SLJIT_MOVU_UI: 1324 flags = INT_SIZE | UPDATE; 1325 if (src & SLJIT_IMM) 1326 srcw = (sljit_ui)srcw; 1327 break; 1328 case SLJIT_MOVU_SI: 1329 flags = INT_SIZE | SIGNED | UPDATE; 1330 if (src & SLJIT_IMM) 1331 srcw = (sljit_si)srcw; 1332 break; 1333 default: 1334 SLJIT_ASSERT_STOP(); 1335 flags = 0; 1336 break; 1337 } 1338 1339 if (src & SLJIT_IMM) 1340 FAIL_IF(emit_op_imm(compiler, SLJIT_MOV | ARG2_IMM, dst_r, TMP_REG1, srcw)); 1341 else if (src & SLJIT_MEM) { 1342 if (getput_arg_fast(compiler, flags, dst_r, src, srcw)) 1343 FAIL_IF(compiler->error); 1344 else 1345 FAIL_IF(getput_arg(compiler, flags, dst_r, src, srcw, dst, dstw)); 1346 } else { 1347 if (dst_r != TMP_REG1) 1348 return emit_op_imm(compiler, op | ((op_flags & SLJIT_INT_OP) ? INT_OP : 0), dst_r, TMP_REG1, src); 1349 dst_r = src; 1350 } 1351 1352 if (dst & SLJIT_MEM) { 1353 if (getput_arg_fast(compiler, flags | STORE, dst_r, dst, dstw)) 1354 return compiler->error; 1355 else 1356 return getput_arg(compiler, flags | STORE, dst_r, dst, dstw, 0, 0); 1357 } 1358 return SLJIT_SUCCESS; 1359 } 1360 1361 flags = GET_FLAGS(op_flags) ? SET_FLAGS : 0; 1362 mem_flags = WORD_SIZE; 1363 if (op_flags & SLJIT_INT_OP) { 1364 flags |= INT_OP; 1365 mem_flags = INT_SIZE; 1366 } 1367 1368 if (dst == SLJIT_UNUSED) 1369 flags |= UNUSED_RETURN; 1370 1371 if (src & SLJIT_MEM) { 1372 if (getput_arg_fast(compiler, mem_flags, TMP_REG2, src, srcw)) 1373 FAIL_IF(compiler->error); 1374 else 1375 FAIL_IF(getput_arg(compiler, mem_flags, TMP_REG2, src, srcw, dst, dstw)); 1376 src = TMP_REG2; 1377 } 1378 1379 if (src & SLJIT_IMM) { 1380 flags |= ARG2_IMM; 1381 if (op_flags & SLJIT_INT_OP) 1382 srcw = (sljit_si)srcw; 1383 } else 1384 srcw = src; 1385 1386 emit_op_imm(compiler, flags | op, dst_r, TMP_REG1, srcw); 1387 1388 if (dst & SLJIT_MEM) { 1389 if (getput_arg_fast(compiler, mem_flags | STORE, dst_r, dst, dstw)) 1390 return compiler->error; 1391 else 1392 return getput_arg(compiler, mem_flags | STORE, dst_r, dst, dstw, 0, 0); 1393 } 1394 return SLJIT_SUCCESS; 1395} 1396 1397SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op2(struct sljit_compiler *compiler, sljit_si op, 1398 sljit_si dst, sljit_sw dstw, 1399 sljit_si src1, sljit_sw src1w, 1400 sljit_si src2, sljit_sw src2w) 1401{ 1402 sljit_si dst_r, flags, mem_flags; 1403 1404 CHECK_ERROR(); 1405 check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w); 1406 ADJUST_LOCAL_OFFSET(dst, dstw); 1407 ADJUST_LOCAL_OFFSET(src1, src1w); 1408 ADJUST_LOCAL_OFFSET(src2, src2w); 1409 1410 compiler->cache_arg = 0; 1411 compiler->cache_argw = 0; 1412 1413 dst_r = SLOW_IS_REG(dst) ? dst : TMP_REG1; 1414 flags = GET_FLAGS(op) ? SET_FLAGS : 0; 1415 mem_flags = WORD_SIZE; 1416 if (op & SLJIT_INT_OP) { 1417 flags |= INT_OP; 1418 mem_flags = INT_SIZE; 1419 } 1420 1421 if (dst == SLJIT_UNUSED) 1422 flags |= UNUSED_RETURN; 1423 1424 if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, mem_flags | STORE | ARG_TEST, TMP_REG1, dst, dstw)) 1425 flags |= SLOW_DEST; 1426 1427 if (src1 & SLJIT_MEM) { 1428 if (getput_arg_fast(compiler, mem_flags, TMP_REG1, src1, src1w)) 1429 FAIL_IF(compiler->error); 1430 else 1431 flags |= SLOW_SRC1; 1432 } 1433 if (src2 & SLJIT_MEM) { 1434 if (getput_arg_fast(compiler, mem_flags, TMP_REG2, src2, src2w)) 1435 FAIL_IF(compiler->error); 1436 else 1437 flags |= SLOW_SRC2; 1438 } 1439 1440 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 1441 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 1442 FAIL_IF(getput_arg(compiler, mem_flags, TMP_REG2, src2, src2w, src1, src1w)); 1443 FAIL_IF(getput_arg(compiler, mem_flags, TMP_REG1, src1, src1w, dst, dstw)); 1444 } 1445 else { 1446 FAIL_IF(getput_arg(compiler, mem_flags, TMP_REG1, src1, src1w, src2, src2w)); 1447 FAIL_IF(getput_arg(compiler, mem_flags, TMP_REG2, src2, src2w, dst, dstw)); 1448 } 1449 } 1450 else if (flags & SLOW_SRC1) 1451 FAIL_IF(getput_arg(compiler, mem_flags, TMP_REG1, src1, src1w, dst, dstw)); 1452 else if (flags & SLOW_SRC2) 1453 FAIL_IF(getput_arg(compiler, mem_flags, TMP_REG2, src2, src2w, dst, dstw)); 1454 1455 if (src1 & SLJIT_MEM) 1456 src1 = TMP_REG1; 1457 if (src2 & SLJIT_MEM) 1458 src2 = TMP_REG2; 1459 1460 if (src1 & SLJIT_IMM) 1461 flags |= ARG1_IMM; 1462 else 1463 src1w = src1; 1464 if (src2 & SLJIT_IMM) 1465 flags |= ARG2_IMM; 1466 else 1467 src2w = src2; 1468 1469 emit_op_imm(compiler, flags | GET_OPCODE(op), dst_r, src1w, src2w); 1470 1471 if (dst & SLJIT_MEM) { 1472 if (!(flags & SLOW_DEST)) { 1473 getput_arg_fast(compiler, mem_flags | STORE, dst_r, dst, dstw); 1474 return compiler->error; 1475 } 1476 return getput_arg(compiler, mem_flags | STORE, TMP_REG1, dst, dstw, 0, 0); 1477 } 1478 1479 return SLJIT_SUCCESS; 1480} 1481 1482SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_register_index(sljit_si reg) 1483{ 1484 check_sljit_get_register_index(reg); 1485 return reg_map[reg]; 1486} 1487 1488SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_float_register_index(sljit_si reg) 1489{ 1490 check_sljit_get_float_register_index(reg); 1491 return reg; 1492} 1493 1494SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_custom(struct sljit_compiler *compiler, 1495 void *instruction, sljit_si size) 1496{ 1497 CHECK_ERROR(); 1498 check_sljit_emit_op_custom(compiler, instruction, size); 1499 SLJIT_ASSERT(size == 4); 1500 1501 return push_inst(compiler, *(sljit_ins*)instruction); 1502} 1503 1504/* --------------------------------------------------------------------- */ 1505/* Floating point operators */ 1506/* --------------------------------------------------------------------- */ 1507 1508SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_is_fpu_available(void) 1509{ 1510#ifdef SLJIT_IS_FPU_AVAILABLE 1511 return SLJIT_IS_FPU_AVAILABLE; 1512#else 1513 /* Available by default. */ 1514 return 1; 1515#endif 1516} 1517 1518static sljit_si emit_fop_mem(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw) 1519{ 1520 sljit_ui shift = MEM_SIZE_SHIFT(flags); 1521 sljit_ins ins_bits = (shift << 30); 1522 sljit_si other_r; 1523 sljit_sw diff; 1524 1525 SLJIT_ASSERT(arg & SLJIT_MEM); 1526 1527 if (!(flags & STORE)) 1528 ins_bits |= 1 << 22; 1529 1530 if (arg & OFFS_REG_MASK) { 1531 argw &= 3; 1532 if (!argw || argw == shift) 1533 return push_inst(compiler, STR_FR | ins_bits | VT(reg) 1534 | RN(arg & REG_MASK) | RM(OFFS_REG(arg)) | (argw ? (1 << 12) : 0)); 1535 other_r = OFFS_REG(arg); 1536 arg &= REG_MASK; 1537 FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG1) | RN(arg) | RM(other_r) | (argw << 10))); 1538 arg = TMP_REG1; 1539 argw = 0; 1540 } 1541 1542 arg &= REG_MASK; 1543 if (arg && argw >= 0 && ((argw >> shift) <= 0xfff) && (argw & ((1 << shift) - 1)) == 0) 1544 return push_inst(compiler, STR_FI | ins_bits | VT(reg) | RN(arg) | (argw << (10 - shift))); 1545 1546 if (arg && argw <= 255 && argw >= -256) 1547 return push_inst(compiler, STUR_FI | ins_bits | VT(reg) | RN(arg) | ((argw & 0x1ff) << 12)); 1548 1549 /* Slow cases */ 1550 if (compiler->cache_arg == SLJIT_MEM && argw != compiler->cache_argw) { 1551 diff = argw - compiler->cache_argw; 1552 if (!arg && diff <= 255 && diff >= -256) 1553 return push_inst(compiler, STUR_FI | ins_bits | VT(reg) | RN(TMP_REG3) | ((diff & 0x1ff) << 12)); 1554 if (emit_set_delta(compiler, TMP_REG3, TMP_REG3, argw - compiler->cache_argw) != SLJIT_ERR_UNSUPPORTED) { 1555 FAIL_IF(compiler->error); 1556 compiler->cache_argw = argw; 1557 } 1558 } 1559 1560 if (compiler->cache_arg != SLJIT_MEM || argw != compiler->cache_argw) { 1561 compiler->cache_arg = SLJIT_MEM; 1562 compiler->cache_argw = argw; 1563 FAIL_IF(load_immediate(compiler, TMP_REG3, argw)); 1564 } 1565 1566 if (arg & REG_MASK) 1567 return push_inst(compiler, STR_FR | ins_bits | VT(reg) | RN(arg) | RM(TMP_REG3)); 1568 return push_inst(compiler, STR_FI | ins_bits | VT(reg) | RN(TMP_REG3)); 1569} 1570 1571static SLJIT_INLINE sljit_si sljit_emit_fop1_convw_fromd(struct sljit_compiler *compiler, sljit_si op, 1572 sljit_si dst, sljit_sw dstw, 1573 sljit_si src, sljit_sw srcw) 1574{ 1575 sljit_si dst_r = SLOW_IS_REG(dst) ? dst : TMP_REG1; 1576 sljit_ins inv_bits = (op & SLJIT_SINGLE_OP) ? (1 << 22) : 0; 1577 1578 if (GET_OPCODE(op) == SLJIT_CONVI_FROMD) 1579 inv_bits |= (1 << 31); 1580 1581 if (src & SLJIT_MEM) { 1582 emit_fop_mem(compiler, (op & SLJIT_SINGLE_OP) ? INT_SIZE : WORD_SIZE, TMP_FREG1, src, srcw); 1583 src = TMP_FREG1; 1584 } 1585 1586 FAIL_IF(push_inst(compiler, (FCVTZS ^ inv_bits) | RD(dst_r) | VN(src))); 1587 1588 if (dst_r == TMP_REG1 && dst != SLJIT_UNUSED) 1589 return emit_op_mem(compiler, ((GET_OPCODE(op) == SLJIT_CONVI_FROMD) ? INT_SIZE : WORD_SIZE) | STORE, TMP_REG1, dst, dstw); 1590 return SLJIT_SUCCESS; 1591} 1592 1593static SLJIT_INLINE sljit_si sljit_emit_fop1_convd_fromw(struct sljit_compiler *compiler, sljit_si op, 1594 sljit_si dst, sljit_sw dstw, 1595 sljit_si src, sljit_sw srcw) 1596{ 1597 sljit_si dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1; 1598 sljit_ins inv_bits = (op & SLJIT_SINGLE_OP) ? (1 << 22) : 0; 1599 1600 if (GET_OPCODE(op) == SLJIT_CONVD_FROMI) 1601 inv_bits |= (1 << 31); 1602 1603 if (src & SLJIT_MEM) { 1604 emit_op_mem(compiler, ((GET_OPCODE(op) == SLJIT_CONVD_FROMI) ? INT_SIZE : WORD_SIZE), TMP_REG1, src, srcw); 1605 src = TMP_REG1; 1606 } else if (src & SLJIT_IMM) { 1607#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) 1608 if (GET_OPCODE(op) == SLJIT_CONVD_FROMI) 1609 srcw = (sljit_si)srcw; 1610#endif 1611 FAIL_IF(load_immediate(compiler, TMP_REG1, srcw)); 1612 src = TMP_REG1; 1613 } 1614 1615 FAIL_IF(push_inst(compiler, (SCVTF ^ inv_bits) | VD(dst_r) | RN(src))); 1616 1617 if (dst & SLJIT_MEM) 1618 return emit_fop_mem(compiler, ((op & SLJIT_SINGLE_OP) ? INT_SIZE : WORD_SIZE) | STORE, TMP_FREG1, dst, dstw); 1619 return SLJIT_SUCCESS; 1620} 1621 1622static SLJIT_INLINE sljit_si sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_si op, 1623 sljit_si src1, sljit_sw src1w, 1624 sljit_si src2, sljit_sw src2w) 1625{ 1626 sljit_si mem_flags = (op & SLJIT_SINGLE_OP) ? INT_SIZE : WORD_SIZE; 1627 sljit_ins inv_bits = (op & SLJIT_SINGLE_OP) ? (1 << 22) : 0; 1628 1629 if (src1 & SLJIT_MEM) { 1630 emit_fop_mem(compiler, mem_flags, TMP_FREG1, src1, src1w); 1631 src1 = TMP_FREG1; 1632 } 1633 1634 if (src2 & SLJIT_MEM) { 1635 emit_fop_mem(compiler, mem_flags, TMP_FREG2, src2, src2w); 1636 src2 = TMP_FREG2; 1637 } 1638 1639 return push_inst(compiler, (FCMP ^ inv_bits) | VN(src1) | VM(src2)); 1640} 1641 1642SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop1(struct sljit_compiler *compiler, sljit_si op, 1643 sljit_si dst, sljit_sw dstw, 1644 sljit_si src, sljit_sw srcw) 1645{ 1646 sljit_si dst_r, mem_flags = (op & SLJIT_SINGLE_OP) ? INT_SIZE : WORD_SIZE; 1647 sljit_ins inv_bits; 1648 1649 CHECK_ERROR(); 1650 compiler->cache_arg = 0; 1651 compiler->cache_argw = 0; 1652 1653 SLJIT_COMPILE_ASSERT((INT_SIZE ^ 0x100) == WORD_SIZE, must_be_one_bit_difference); 1654 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw); 1655 1656 inv_bits = (op & SLJIT_SINGLE_OP) ? (1 << 22) : 0; 1657 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1; 1658 1659 if (src & SLJIT_MEM) { 1660 emit_fop_mem(compiler, (GET_OPCODE(op) == SLJIT_CONVD_FROMS) ? (mem_flags ^ 0x100) : mem_flags, dst_r, src, srcw); 1661 src = dst_r; 1662 } 1663 1664 switch (GET_OPCODE(op)) { 1665 case SLJIT_MOVD: 1666 if (src != dst_r) { 1667 if (dst_r != TMP_FREG1) 1668 FAIL_IF(push_inst(compiler, (FMOV ^ inv_bits) | VD(dst_r) | VN(src))); 1669 else 1670 dst_r = src; 1671 } 1672 break; 1673 case SLJIT_NEGD: 1674 FAIL_IF(push_inst(compiler, (FNEG ^ inv_bits) | VD(dst_r) | VN(src))); 1675 break; 1676 case SLJIT_ABSD: 1677 FAIL_IF(push_inst(compiler, (FABS ^ inv_bits) | VD(dst_r) | VN(src))); 1678 break; 1679 case SLJIT_CONVD_FROMS: 1680 FAIL_IF(push_inst(compiler, FCVT | ((op & SLJIT_SINGLE_OP) ? (1 << 22) : (1 << 15)) | VD(dst_r) | VN(src))); 1681 break; 1682 } 1683 1684 if (dst & SLJIT_MEM) 1685 return emit_fop_mem(compiler, mem_flags | STORE, dst_r, dst, dstw); 1686 return SLJIT_SUCCESS; 1687} 1688 1689SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop2(struct sljit_compiler *compiler, sljit_si op, 1690 sljit_si dst, sljit_sw dstw, 1691 sljit_si src1, sljit_sw src1w, 1692 sljit_si src2, sljit_sw src2w) 1693{ 1694 sljit_si dst_r, mem_flags = (op & SLJIT_SINGLE_OP) ? INT_SIZE : WORD_SIZE; 1695 sljit_ins inv_bits = (op & SLJIT_SINGLE_OP) ? (1 << 22) : 0; 1696 1697 CHECK_ERROR(); 1698 check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w); 1699 ADJUST_LOCAL_OFFSET(dst, dstw); 1700 ADJUST_LOCAL_OFFSET(src1, src1w); 1701 ADJUST_LOCAL_OFFSET(src2, src2w); 1702 1703 compiler->cache_arg = 0; 1704 compiler->cache_argw = 0; 1705 1706 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1; 1707 if (src1 & SLJIT_MEM) { 1708 emit_fop_mem(compiler, mem_flags, TMP_FREG1, src1, src1w); 1709 src1 = TMP_FREG1; 1710 } 1711 if (src2 & SLJIT_MEM) { 1712 emit_fop_mem(compiler, mem_flags, TMP_FREG2, src2, src2w); 1713 src2 = TMP_FREG2; 1714 } 1715 1716 switch (GET_OPCODE(op)) { 1717 case SLJIT_ADDD: 1718 FAIL_IF(push_inst(compiler, (FADD ^ inv_bits) | VD(dst_r) | VN(src1) | VM(src2))); 1719 break; 1720 case SLJIT_SUBD: 1721 FAIL_IF(push_inst(compiler, (FSUB ^ inv_bits) | VD(dst_r) | VN(src1) | VM(src2))); 1722 break; 1723 case SLJIT_MULD: 1724 FAIL_IF(push_inst(compiler, (FMUL ^ inv_bits) | VD(dst_r) | VN(src1) | VM(src2))); 1725 break; 1726 case SLJIT_DIVD: 1727 FAIL_IF(push_inst(compiler, (FDIV ^ inv_bits) | VD(dst_r) | VN(src1) | VM(src2))); 1728 break; 1729 } 1730 1731 if (!(dst & SLJIT_MEM)) 1732 return SLJIT_SUCCESS; 1733 return emit_fop_mem(compiler, mem_flags | STORE, TMP_FREG1, dst, dstw); 1734} 1735 1736/* --------------------------------------------------------------------- */ 1737/* Other instructions */ 1738/* --------------------------------------------------------------------- */ 1739 1740SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw) 1741{ 1742 CHECK_ERROR(); 1743 check_sljit_emit_fast_enter(compiler, dst, dstw); 1744 ADJUST_LOCAL_OFFSET(dst, dstw); 1745 1746 /* For UNUSED dst. Uncommon, but possible. */ 1747 if (dst == SLJIT_UNUSED) 1748 return SLJIT_SUCCESS; 1749 1750 if (FAST_IS_REG(dst)) 1751 return push_inst(compiler, ORR | RD(dst) | RN(TMP_ZERO) | RM(TMP_LR)); 1752 1753 /* Memory. */ 1754 return emit_op_mem(compiler, WORD_SIZE | STORE, TMP_LR, dst, dstw); 1755} 1756 1757SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_si src, sljit_sw srcw) 1758{ 1759 CHECK_ERROR(); 1760 check_sljit_emit_fast_return(compiler, src, srcw); 1761 ADJUST_LOCAL_OFFSET(src, srcw); 1762 1763 if (FAST_IS_REG(src)) 1764 FAIL_IF(push_inst(compiler, ORR | RD(TMP_LR) | RN(TMP_ZERO) | RM(src))); 1765 else if (src & SLJIT_MEM) 1766 FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_LR, src, srcw)); 1767 else if (src & SLJIT_IMM) 1768 FAIL_IF(load_immediate(compiler, TMP_LR, srcw)); 1769 1770 return push_inst(compiler, RET | RN(TMP_LR)); 1771} 1772 1773/* --------------------------------------------------------------------- */ 1774/* Conditional instructions */ 1775/* --------------------------------------------------------------------- */ 1776 1777static sljit_uw get_cc(sljit_si type) 1778{ 1779 switch (type) { 1780 case SLJIT_C_EQUAL: 1781 case SLJIT_C_MUL_NOT_OVERFLOW: 1782 case SLJIT_C_FLOAT_EQUAL: 1783 return 0x1; 1784 1785 case SLJIT_C_NOT_EQUAL: 1786 case SLJIT_C_MUL_OVERFLOW: 1787 case SLJIT_C_FLOAT_NOT_EQUAL: 1788 return 0x0; 1789 1790 case SLJIT_C_LESS: 1791 case SLJIT_C_FLOAT_LESS: 1792 return 0x2; 1793 1794 case SLJIT_C_GREATER_EQUAL: 1795 case SLJIT_C_FLOAT_GREATER_EQUAL: 1796 return 0x3; 1797 1798 case SLJIT_C_GREATER: 1799 case SLJIT_C_FLOAT_GREATER: 1800 return 0x9; 1801 1802 case SLJIT_C_LESS_EQUAL: 1803 case SLJIT_C_FLOAT_LESS_EQUAL: 1804 return 0x8; 1805 1806 case SLJIT_C_SIG_LESS: 1807 return 0xa; 1808 1809 case SLJIT_C_SIG_GREATER_EQUAL: 1810 return 0xb; 1811 1812 case SLJIT_C_SIG_GREATER: 1813 return 0xd; 1814 1815 case SLJIT_C_SIG_LESS_EQUAL: 1816 return 0xc; 1817 1818 case SLJIT_C_OVERFLOW: 1819 case SLJIT_C_FLOAT_UNORDERED: 1820 return 0x7; 1821 1822 case SLJIT_C_NOT_OVERFLOW: 1823 case SLJIT_C_FLOAT_ORDERED: 1824 return 0x6; 1825 1826 default: 1827 SLJIT_ASSERT_STOP(); 1828 return 0xe; 1829 } 1830} 1831 1832SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler) 1833{ 1834 struct sljit_label *label; 1835 1836 CHECK_ERROR_PTR(); 1837 check_sljit_emit_label(compiler); 1838 1839 if (compiler->last_label && compiler->last_label->size == compiler->size) 1840 return compiler->last_label; 1841 1842 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label)); 1843 PTR_FAIL_IF(!label); 1844 set_label(label, compiler); 1845 return label; 1846} 1847 1848SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_si type) 1849{ 1850 struct sljit_jump *jump; 1851 1852 CHECK_ERROR_PTR(); 1853 check_sljit_emit_jump(compiler, type); 1854 1855 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1856 PTR_FAIL_IF(!jump); 1857 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1858 type &= 0xff; 1859 1860 if (type < SLJIT_JUMP) { 1861 jump->flags |= IS_COND; 1862 PTR_FAIL_IF(push_inst(compiler, B_CC | (6 << 5) | get_cc(type))); 1863 } 1864 else if (type >= SLJIT_FAST_CALL) 1865 jump->flags |= IS_BL; 1866 1867 PTR_FAIL_IF(emit_imm64_const(compiler, TMP_REG1, 0)); 1868 jump->addr = compiler->size; 1869 PTR_FAIL_IF(push_inst(compiler, ((type >= SLJIT_FAST_CALL) ? BLR : BR) | RN(TMP_REG1))); 1870 1871 return jump; 1872} 1873 1874static SLJIT_INLINE struct sljit_jump* emit_cmp_to0(struct sljit_compiler *compiler, sljit_si type, 1875 sljit_si src, sljit_sw srcw) 1876{ 1877 struct sljit_jump *jump; 1878 sljit_ins inv_bits = (type & SLJIT_INT_OP) ? (1 << 31) : 0; 1879 1880 SLJIT_ASSERT((type & 0xff) == SLJIT_C_EQUAL || (type & 0xff) == SLJIT_C_NOT_EQUAL); 1881 ADJUST_LOCAL_OFFSET(src, srcw); 1882 1883 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1884 PTR_FAIL_IF(!jump); 1885 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1886 jump->flags |= IS_CBZ | IS_COND; 1887 1888 if (src & SLJIT_MEM) { 1889 PTR_FAIL_IF(emit_op_mem(compiler, inv_bits ? INT_SIZE : WORD_SIZE, TMP_REG1, src, srcw)); 1890 src = TMP_REG1; 1891 } 1892 else if (src & SLJIT_IMM) { 1893 PTR_FAIL_IF(load_immediate(compiler, TMP_REG1, srcw)); 1894 src = TMP_REG1; 1895 } 1896 SLJIT_ASSERT(FAST_IS_REG(src)); 1897 1898 if ((type & 0xff) == SLJIT_C_EQUAL) 1899 inv_bits |= 1 << 24; 1900 1901 PTR_FAIL_IF(push_inst(compiler, (CBZ ^ inv_bits) | (6 << 5) | RT(src))); 1902 PTR_FAIL_IF(emit_imm64_const(compiler, TMP_REG1, 0)); 1903 jump->addr = compiler->size; 1904 PTR_FAIL_IF(push_inst(compiler, BR | RN(TMP_REG1))); 1905 return jump; 1906} 1907 1908SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_ijump(struct sljit_compiler *compiler, sljit_si type, sljit_si src, sljit_sw srcw) 1909{ 1910 struct sljit_jump *jump; 1911 1912 CHECK_ERROR(); 1913 check_sljit_emit_ijump(compiler, type, src, srcw); 1914 ADJUST_LOCAL_OFFSET(src, srcw); 1915 1916 /* In ARM, we don't need to touch the arguments. */ 1917 if (!(src & SLJIT_IMM)) { 1918 if (src & SLJIT_MEM) { 1919 FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, src, srcw)); 1920 src = TMP_REG1; 1921 } 1922 return push_inst(compiler, ((type >= SLJIT_FAST_CALL) ? BLR : BR) | RN(src)); 1923 } 1924 1925 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1926 FAIL_IF(!jump); 1927 set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_BL : 0)); 1928 jump->u.target = srcw; 1929 1930 FAIL_IF(emit_imm64_const(compiler, TMP_REG1, 0)); 1931 jump->addr = compiler->size; 1932 return push_inst(compiler, ((type >= SLJIT_FAST_CALL) ? BLR : BR) | RN(TMP_REG1)); 1933} 1934 1935SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_si op, 1936 sljit_si dst, sljit_sw dstw, 1937 sljit_si src, sljit_sw srcw, 1938 sljit_si type) 1939{ 1940 sljit_si dst_r, flags, mem_flags; 1941 sljit_ins cc; 1942 1943 CHECK_ERROR(); 1944 check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type); 1945 ADJUST_LOCAL_OFFSET(dst, dstw); 1946 ADJUST_LOCAL_OFFSET(src, srcw); 1947 1948 if (dst == SLJIT_UNUSED) 1949 return SLJIT_SUCCESS; 1950 1951 cc = get_cc(type); 1952 dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1; 1953 1954 if (GET_OPCODE(op) < SLJIT_ADD) { 1955 FAIL_IF(push_inst(compiler, CSINC | (cc << 12) | RD(dst_r) | RN(TMP_ZERO) | RM(TMP_ZERO))); 1956 if (dst_r != TMP_REG1) 1957 return SLJIT_SUCCESS; 1958 return emit_op_mem(compiler, (GET_OPCODE(op) == SLJIT_MOV ? WORD_SIZE : INT_SIZE) | STORE, TMP_REG1, dst, dstw); 1959 } 1960 1961 compiler->cache_arg = 0; 1962 compiler->cache_argw = 0; 1963 flags = GET_FLAGS(op) ? SET_FLAGS : 0; 1964 mem_flags = WORD_SIZE; 1965 if (op & SLJIT_INT_OP) { 1966 flags |= INT_OP; 1967 mem_flags = INT_SIZE; 1968 } 1969 1970 if (src & SLJIT_MEM) { 1971 FAIL_IF(emit_op_mem2(compiler, mem_flags, TMP_REG1, src, srcw, dst, dstw)); 1972 src = TMP_REG1; 1973 srcw = 0; 1974 } else if (src & SLJIT_IMM) 1975 flags |= ARG1_IMM; 1976 1977 FAIL_IF(push_inst(compiler, CSINC | (cc << 12) | RD(TMP_REG2) | RN(TMP_ZERO) | RM(TMP_ZERO))); 1978 emit_op_imm(compiler, flags | GET_OPCODE(op), dst_r, src, TMP_REG2); 1979 1980 if (dst_r != TMP_REG1) 1981 return SLJIT_SUCCESS; 1982 return emit_op_mem2(compiler, mem_flags | STORE, TMP_REG1, dst, dstw, 0, 0); 1983} 1984 1985SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw, sljit_sw init_value) 1986{ 1987 struct sljit_const *const_; 1988 sljit_si dst_r; 1989 1990 CHECK_ERROR_PTR(); 1991 check_sljit_emit_const(compiler, dst, dstw, init_value); 1992 ADJUST_LOCAL_OFFSET(dst, dstw); 1993 1994 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const)); 1995 PTR_FAIL_IF(!const_); 1996 set_const(const_, compiler); 1997 1998 dst_r = SLOW_IS_REG(dst) ? dst : TMP_REG1; 1999 PTR_FAIL_IF(emit_imm64_const(compiler, dst_r, init_value)); 2000 2001 if (dst & SLJIT_MEM) 2002 PTR_FAIL_IF(emit_op_mem(compiler, WORD_SIZE | STORE, dst_r, dst, dstw)); 2003 return const_; 2004} 2005 2006SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr) 2007{ 2008 sljit_ins* inst = (sljit_ins*)addr; 2009 modify_imm64_const(inst, new_addr); 2010 SLJIT_CACHE_FLUSH(inst, inst + 4); 2011} 2012 2013SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant) 2014{ 2015 sljit_ins* inst = (sljit_ins*)addr; 2016 modify_imm64_const(inst, new_constant); 2017 SLJIT_CACHE_FLUSH(inst, inst + 4); 2018} 2019