File size: 41,911 Bytes
1e94262 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 | /*
* IR - Lightweight JIT Compilation Framework
* (Public API)
* Copyright (C) 2022 Zend by Perforce.
* Authors: Dmitry Stogov <dmitry@php.net>
*/
#ifndef IR_H
#define IR_H
#ifdef __cplusplus
extern "C" {
#endif
#include <inttypes.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#define IR_VERSION "0.0.1"
#ifdef _WIN32
/* TODO Handle ARM, too. */
# if defined(_M_X64) || defined(_M_ARM64)
# define __SIZEOF_SIZE_T__ 8
# elif defined(_M_IX86)
# define __SIZEOF_SIZE_T__ 4
# endif
/* Only supported is little endian for any arch on Windows,
so just fake the same for all. */
# ifndef __ORDER_LITTLE_ENDIAN__
# define __ORDER_LITTLE_ENDIAN__ 1
# endif
# define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
# ifndef __has_builtin
# define __has_builtin(arg) (0)
# endif
#endif
/* target auto detection */
#if !defined(IR_TARGET_X86) && !defined(IR_TARGET_X64) && !defined(IR_TARGET_AARCH64)
# if defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
# define IR_TARGET_X64
# elif defined(i386) || defined(__i386) || defined(__i386__) || defined(_M_IX86)
# define IR_TARGET_X86
# elif defined(__aarch64__) || defined(_M_ARM64)
# define IR_TARGET_AARCH64
# elif defined (_WIN64)
# define IR_TARGET_X64
# elif defined (_WIN32)
# define IR_TARGET_X86
# endif
#endif
#if defined(IR_TARGET_X86)
# define IR_TARGET "x86"
#elif defined(IR_TARGET_X64)
# ifdef _WIN64
# define IR_TARGET "Windows-x86_64" /* 64-bit Windows use different ABI and calling convention */
# else
# define IR_TARGET "x86_64"
# endif
#elif defined(IR_TARGET_AARCH64)
# define IR_TARGET "aarch64"
#else
# error "Unknown IR target"
#endif
#if defined(__SIZEOF_SIZE_T__)
# if __SIZEOF_SIZE_T__ == 8
# define IR_64 1
# elif __SIZEOF_SIZE_T__ != 4
# error "Unknown addr size"
# endif
#else
# error "Unknown addr size"
#endif
#if defined(__BYTE_ORDER__)
# if defined(__ORDER_LITTLE_ENDIAN__)
# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
# define IR_STRUCT_LOHI(lo, hi) struct {lo; hi;}
# endif
# endif
# if defined(__ORDER_BIG_ENDIAN__)
# if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
# define IR_STRUCT_LOHI(lo, hi) struct {hi; lo;}
# endif
# endif
#endif
#ifndef IR_STRUCT_LOHI
# error "Unknown byte order"
#endif
#ifdef __has_attribute
# if __has_attribute(always_inline)
# define IR_ALWAYS_INLINE static inline __attribute__((always_inline))
# endif
# if __has_attribute(noinline)
# define IR_NEVER_INLINE __attribute__((noinline))
# endif
#else
# define __has_attribute(x) 0
#endif
#ifndef IR_ALWAYS_INLINE
# define IR_ALWAYS_INLINE static inline
#endif
#ifndef IR_NEVER_INLINE
# define IR_NEVER_INLINE
#endif
#ifdef IR_PHP
# include "ir_php.h"
#endif
/* IR Type flags (low 4 bits are used for type size) */
#define IR_TYPE_SIGNED (1<<4)
#define IR_TYPE_UNSIGNED (1<<5)
#define IR_TYPE_FP (1<<6)
#define IR_TYPE_SPECIAL (1<<7)
#define IR_TYPE_BOOL (IR_TYPE_SPECIAL|IR_TYPE_UNSIGNED)
#define IR_TYPE_ADDR (IR_TYPE_SPECIAL|IR_TYPE_UNSIGNED)
#define IR_TYPE_CHAR (IR_TYPE_SPECIAL|IR_TYPE_SIGNED)
/* List of IR types */
#define IR_TYPES(_) \
_(BOOL, bool, b, IR_TYPE_BOOL) \
_(U8, uint8_t, u8, IR_TYPE_UNSIGNED) \
_(U16, uint16_t, u16, IR_TYPE_UNSIGNED) \
_(U32, uint32_t, u32, IR_TYPE_UNSIGNED) \
_(U64, uint64_t, u64, IR_TYPE_UNSIGNED) \
_(ADDR, uintptr_t, addr, IR_TYPE_ADDR) \
_(CHAR, char, c, IR_TYPE_CHAR) \
_(I8, int8_t, i8, IR_TYPE_SIGNED) \
_(I16, int16_t, i16, IR_TYPE_SIGNED) \
_(I32, int32_t, i32, IR_TYPE_SIGNED) \
_(I64, int64_t, i64, IR_TYPE_SIGNED) \
_(DOUBLE, double, d, IR_TYPE_FP) \
_(FLOAT, float, f, IR_TYPE_FP) \
#define IR_IS_TYPE_UNSIGNED(t) ((t) < IR_CHAR)
#define IR_IS_TYPE_SIGNED(t) ((t) >= IR_CHAR && (t) < IR_DOUBLE)
#define IR_IS_TYPE_INT(t) ((t) < IR_DOUBLE)
#define IR_IS_TYPE_FP(t) ((t) >= IR_DOUBLE)
#define IR_TYPE_ENUM(name, type, field, flags) IR_ ## name,
typedef enum _ir_type {
IR_VOID,
IR_TYPES(IR_TYPE_ENUM)
IR_LAST_TYPE
} ir_type;
#ifdef IR_64
# define IR_SIZE_T IR_U64
# define IR_SSIZE_T IR_I64
# define IR_UINTPTR_T IR_U64
# define IR_INTPTR_T IR_I64
# define IR_C_UINTPTR IR_U64
# define IR_C_INTPTR IR_I64
# define ir_const_size_t ir_const_u64
# define ir_const_ssize_t ir_const_i64
# define ir_const_uintptr_t ir_const_u64
# define ir_const_intptr_t ir_const_i64
#else
# define IR_SIZE_T IR_U32
# define IR_SSIZE_T IR_I32
# define IR_UINTPTR_T IR_U32
# define IR_INTPTR_T IR_I32
# define IR_C_UINTPTR IR_U32
# define IR_C_INTPTR IR_I32
# define ir_const_size_t ir_const_u32
# define ir_const_ssize_t ir_const_i32
# define ir_const_uintptr_t ir_const_u32
# define ir_const_intptr_t ir_const_i32
#endif
/* List of IR opcodes
* ==================
*
* Each instruction is described by a type (opcode, flags, op1_type, op2_type, op3_type)
*
* flags
* -----
* v - void
* d - data IR_OP_FLAG_DATA
* r - ref IR_OP_FLAG_DATA alias
* p - pinned IR_OP_FLAG_DATA + IR_OP_FLAG_PINNED
* c - control IR_OP_FLAG_CONTROL
* S - control IR_OP_FLAG_CONTROL + IR_OP_FLAG_BB_START
* E - control IR_OP_FLAG_CONTROL + IR_OP_FLAG_BB_END
* T - control IR_OP_FLAG_CONTROL + IR_OP_FLAG_BB_END + IR_OP_FLAG_TERMINATOR
* l - load IR_OP_FLAG_MEM + IR_OP_FLAG_MEM_LOAD
* s - store IR_OP_FLAG_MEM + IR_OP_FLAG_STORE
* x - call IR_OP_FLAG_MEM + IR_OP_FLAG_CALL
* a - alloc IR_OP_FLAG_MEM + IR_OP_FLAG_ALLOC
* 0-3 - number of input edges
* N - number of arguments is defined in the insn->inputs_count (MERGE, PHI, CALL)
* X1-X3 - number of extra data ops
* C - commutative operation ("d2C" => IR_OP_FLAG_DATA + IR_OP_FLAG_COMMUTATIVE)
*
* operand types
* -------------
* ___ - unused
* def - reference to a definition op (data-flow use-def dependency edge)
* ref - memory reference (data-flow use-def dependency edge)
* var - variable reference (data-flow use-def dependency edge)
* arg - argument reference CALL/TAILCALL/CARG->CARG
* src - reference to a previous control region (IF, IF_TRUE, IF_FALSE, MERGE, LOOP_BEGIN, LOOP_END, RETURN)
* reg - data-control dependency on region (PHI, VAR, PARAM)
* ret - reference to a previous RETURN instruction (RETURN)
* str - string: variable/argument name (VAR, PARAM, CALL, TAILCALL)
* num - number: argument number (PARAM)
* prb - branch probability 1-99 (0 - unspecified): (IF_TRUE, IF_FALSE, CASE_VAL, CASE_DEFAULT)
* opt - optional number
* pro - function prototype
*
* The order of IR opcodes is carefully selected for efficient folding.
* - foldable instruction go first
* - NOP is never used (code 0 is used as ANY pattern)
* - CONST is the most often used instruction (encode with 1 bit)
* - equality inversion: EQ <-> NE => op =^ 1
* - comparison inversion: [U]LT <-> [U]GT, [U]LE <-> [U]GE => op =^ 3
*/
#define IR_OPS(_) \
/* special op (must be the first !!!) */ \
_(NOP, v, ___, ___, ___) /* empty instruction */ \
\
/* constants reference */ \
_(C_BOOL, r0, ___, ___, ___) /* constant */ \
_(C_U8, r0, ___, ___, ___) /* constant */ \
_(C_U16, r0, ___, ___, ___) /* constant */ \
_(C_U32, r0, ___, ___, ___) /* constant */ \
_(C_U64, r0, ___, ___, ___) /* constant */ \
_(C_ADDR, r0, ___, ___, ___) /* constant */ \
_(C_CHAR, r0, ___, ___, ___) /* constant */ \
_(C_I8, r0, ___, ___, ___) /* constant */ \
_(C_I16, r0, ___, ___, ___) /* constant */ \
_(C_I32, r0, ___, ___, ___) /* constant */ \
_(C_I64, r0, ___, ___, ___) /* constant */ \
_(C_DOUBLE, r0, ___, ___, ___) /* constant */ \
_(C_FLOAT, r0, ___, ___, ___) /* constant */ \
\
/* equality ops */ \
_(EQ, d2C, def, def, ___) /* equal */ \
_(NE, d2C, def, def, ___) /* not equal */ \
\
/* comparison ops (order matters, LT must be a modulo of 4 !!!) */ \
_(LT, d2, def, def, ___) /* less */ \
_(GE, d2, def, def, ___) /* greater or equal */ \
_(LE, d2, def, def, ___) /* less or equal */ \
_(GT, d2, def, def, ___) /* greater */ \
_(ULT, d2, def, def, ___) /* unsigned less */ \
_(UGE, d2, def, def, ___) /* unsigned greater or equal */ \
_(ULE, d2, def, def, ___) /* unsigned less or equal */ \
_(UGT, d2, def, def, ___) /* unsigned greater */ \
\
/* arithmetic ops */ \
_(ADD, d2C, def, def, ___) /* addition */ \
_(SUB, d2, def, def, ___) /* subtraction (must be ADD+1) */ \
_(MUL, d2C, def, def, ___) /* multiplication */ \
_(DIV, d2, def, def, ___) /* division */ \
_(MOD, d2, def, def, ___) /* modulo */ \
_(NEG, d1, def, ___, ___) /* change sign */ \
_(ABS, d1, def, ___, ___) /* absolute value */ \
/* (LDEXP, MIN, MAX, FPMATH) */ \
\
/* type conversion ops */ \
_(SEXT, d1, def, ___, ___) /* sign extension */ \
_(ZEXT, d1, def, ___, ___) /* zero extension */ \
_(TRUNC, d1, def, ___, ___) /* truncates to int type */ \
_(BITCAST, d1, def, ___, ___) /* binary representation */ \
_(INT2FP, d1, def, ___, ___) /* int to float conversion */ \
_(FP2INT, d1, def, ___, ___) /* float to int conversion */ \
_(FP2FP, d1, def, ___, ___) /* float to float conversion */ \
_(PROTO, d1X1, def, pro, ___) /* apply function prototype */ \
\
/* overflow-check */ \
_(ADD_OV, d2C, def, def, ___) /* addition */ \
_(SUB_OV, d2, def, def, ___) /* subtraction */ \
_(MUL_OV, d2C, def, def, ___) /* multiplication */ \
_(OVERFLOW, d1, def, ___, ___) /* overflow check add/sub/mul */ \
\
/* bitwise and shift ops */ \
_(NOT, d1, def, ___, ___) /* bitwise NOT */ \
_(OR, d2C, def, def, ___) /* bitwise OR */ \
_(AND, d2C, def, def, ___) /* bitwise AND */ \
_(XOR, d2C, def, def, ___) /* bitwise XOR */ \
_(SHL, d2, def, def, ___) /* logic shift left */ \
_(SHR, d2, def, def, ___) /* logic shift right */ \
_(SAR, d2, def, def, ___) /* arithmetic shift right */ \
_(ROL, d2, def, def, ___) /* rotate left */ \
_(ROR, d2, def, def, ___) /* rotate right */ \
_(BSWAP, d1, def, ___, ___) /* byte swap */ \
_(CTPOP, d1, def, ___, ___) /* count population */ \
_(CTLZ, d1, def, ___, ___) /* count leading zeros */ \
_(CTTZ, d1, def, ___, ___) /* count trailing zeros */ \
\
/* branch-less conditional ops */ \
_(MIN, d2C, def, def, ___) /* min(op1, op2) */ \
_(MAX, d2C, def, def, ___) /* max(op1, op2) */ \
_(COND, d3, def, def, def) /* op1 ? op2 : op3 */ \
\
/* data-flow and miscellaneous ops */ \
_(VADDR, d1, var, ___, ___) /* load address of local var */ \
_(FRAME_ADDR, d0, ___, ___, ___) /* function frame address */ \
_(PHI, pN, reg, def, def) /* SSA Phi function */ \
_(COPY, d1X1, def, opt, ___) /* COPY (last foldable op) */ \
_(PI, p2, reg, def, ___) /* e-SSA Pi constraint ??? */ \
/* (USE, RENAME) */ \
\
/* data ops */ \
_(PARAM, p1X2, reg, str, num) /* incoming parameter proj. */ \
_(VAR, p1X1, reg, str, ___) /* local variable */ \
_(FUNC_ADDR, r0, ___, ___, ___) /* constant func ref */ \
_(FUNC, r0, ___, ___, ___) /* constant func ref */ \
_(SYM, r0, ___, ___, ___) /* constant symbol ref */ \
_(STR, r0, ___, ___, ___) /* constant str ref */ \
\
/* call ops */ \
_(CALL, xN, src, def, def) /* CALL(src, func, args...) */ \
_(TAILCALL, xN, src, def, def) /* CALL+RETURN */ \
\
/* memory reference and load/store ops */ \
_(ALLOCA, a2, src, def, ___) /* alloca(def) */ \
_(AFREE, a2, src, def, ___) /* revert alloca(def) */ \
_(BLOCK_BEGIN, a1, src, ___, ___) /* stacksave */ \
_(BLOCK_END, a2, src, def, ___) /* stackrestore */ \
_(VLOAD, l2, src, var, ___) /* load value of local var */ \
_(VSTORE, s3, src, var, def) /* store value to local var */ \
_(RLOAD, l1X2, src, num, opt) /* load value from register */ \
_(RSTORE, s2X1, src, def, num) /* store value into register */ \
_(LOAD, l2, src, ref, ___) /* load from memory */ \
_(STORE, s3, src, ref, def) /* store to memory */ \
_(TLS, l1X2, src, num, num) /* thread local variable */ \
_(TRAP, x1, src, ___, ___) /* DebugBreak */ \
/* memory reference ops (A, H, U, S, TMP, STR, NEW, X, V) ??? */ \
\
/* va_args */ \
_(VA_START, x2, src, def, ___) /* va_start(va_list) */ \
_(VA_END, x2, src, def, ___) /* va_end(va_list) */ \
_(VA_COPY, x3, src, def, def) /* va_copy(dst, stc) */ \
_(VA_ARG, x2, src, def, ___) /* va_arg(va_list) */ \
\
/* guards */ \
_(GUARD, c3, src, def, def) /* IF without second successor */ \
_(GUARD_NOT , c3, src, def, def) /* IF without second successor */ \
\
/* deoptimization */ \
_(SNAPSHOT, xN, src, def, def) /* SNAPSHOT(src, args...) */ \
\
/* control-flow nodes */ \
_(START, S0X1, ret, ___, ___) /* function start */ \
_(ENTRY, S1X1, src, num, ___) /* entry with a fake src edge */ \
_(BEGIN, S1, src, ___, ___) /* block start */ \
_(IF_TRUE, S1X1, src, prb, ___) /* IF TRUE proj. */ \
_(IF_FALSE, S1X1, src, prb, ___) /* IF FALSE proj. */ \
_(CASE_VAL, S2X1, src, def, prb) /* switch proj. */ \
_(CASE_DEFAULT, S1X1, src, prb, ___) /* switch proj. */ \
_(MERGE, SN, src, src, src) /* control merge */ \
_(LOOP_BEGIN, SN, src, src, src) /* loop start */ \
_(END, E1, src, ___, ___) /* block end */ \
_(LOOP_END, E1, src, ___, ___) /* loop end */ \
_(IF, E2, src, def, ___) /* conditional control split */ \
_(SWITCH, E2, src, def, ___) /* multi-way control split */ \
_(RETURN, T2X1, src, def, ret) /* function return */ \
_(IJMP, T2X1, src, def, ret) /* computed goto */ \
_(UNREACHABLE, T1X2, src, ___, ret) /* unreachable (tailcall, etc) */ \
\
/* deoptimization helper */ \
_(EXITCALL, x2, src, def, ___) /* save CPU regs and call op2 */ \
#define IR_OP_ENUM(name, flags, op1, op2, op3) IR_ ## name,
typedef enum _ir_op {
IR_OPS(IR_OP_ENUM)
#ifdef IR_PHP
IR_PHP_OPS(IR_OP_ENUM)
#endif
IR_LAST_OP
} ir_op;
/* IR Opcode and Type Union */
#define IR_OPT_OP_MASK 0x00ff
#define IR_OPT_TYPE_MASK 0xff00
#define IR_OPT_TYPE_SHIFT 8
#define IR_OPT_INPUTS_SHIFT 16
#define IR_OPT(op, type) ((uint16_t)(op) | ((uint16_t)(type) << IR_OPT_TYPE_SHIFT))
#define IR_OPTX(op, type, n) ((uint32_t)(op) | ((uint32_t)(type) << IR_OPT_TYPE_SHIFT) | ((uint32_t)(n) << IR_OPT_INPUTS_SHIFT))
#define IR_OPT_TYPE(opt) (((opt) & IR_OPT_TYPE_MASK) >> IR_OPT_TYPE_SHIFT)
/* IR References */
typedef int32_t ir_ref;
#define IR_IS_CONST_REF(ref) ((ref) < 0)
/* IR Constant Value */
#define IR_UNUSED 0
#define IR_NULL (-1)
#define IR_FALSE (-2)
#define IR_TRUE (-3)
#define IR_LAST_FOLDABLE_OP IR_COPY
#define IR_CONSTS_LIMIT_MIN (-(IR_TRUE - 1))
#define IR_INSNS_LIMIT_MIN (IR_UNUSED + 1)
/* ADDR_MEMBER is neccessary to workaround MSVC C preprocessor bug */
#ifndef IR_64
# define ADDR_MEMBER uintptr_t addr; \
void *ptr;
#else
# define ADDR_MEMBER
#endif
typedef union _ir_val {
double d;
uint64_t u64;
int64_t i64;
#ifdef IR_64
uintptr_t addr;
void *ptr;
#endif
IR_STRUCT_LOHI(
union {
uint32_t u32;
int32_t i32;
float f;
ADDR_MEMBER
ir_ref name;
ir_ref str;
IR_STRUCT_LOHI(
union {
uint16_t u16;
int16_t i16;
IR_STRUCT_LOHI(
union {
uint8_t u8;
int8_t i8;
bool b;
char c;
},
uint8_t u8_hi
);
},
uint16_t u16_hi
);
},
uint32_t u32_hi
);
} ir_val;
#undef ADDR_MEMBER
/* IR Instruction */
typedef struct _ir_insn {
IR_STRUCT_LOHI(
union {
IR_STRUCT_LOHI(
union {
IR_STRUCT_LOHI(
uint8_t op,
uint8_t type
);
uint16_t opt;
},
union {
uint16_t inputs_count; /* number of input control edges for MERGE, PHI, CALL, TAILCALL */
uint16_t prev_insn_offset; /* 16-bit backward offset from current instruction for CSE */
uint16_t proto;
}
);
uint32_t optx;
ir_ref ops[1];
},
union {
ir_ref op1;
ir_ref ref;
ir_ref prev_const;
}
);
union {
IR_STRUCT_LOHI(
ir_ref op2,
ir_ref op3
);
ir_val val;
};
} ir_insn;
/* IR Hash Tables API (private) */
typedef struct _ir_hashtab ir_hashtab;
/* IR String Tables API (implementation in ir_strtab.c) */
typedef struct _ir_strtab {
void *data;
uint32_t mask;
uint32_t size;
uint32_t count;
uint32_t pos;
char *buf;
uint32_t buf_size;
uint32_t buf_top;
} ir_strtab;
#define ir_strtab_count(strtab) (strtab)->count
typedef void (*ir_strtab_apply_t)(const char *str, uint32_t len, ir_ref val);
void ir_strtab_init(ir_strtab *strtab, uint32_t count, uint32_t buf_size);
ir_ref ir_strtab_lookup(ir_strtab *strtab, const char *str, uint32_t len, ir_ref val);
ir_ref ir_strtab_find(const ir_strtab *strtab, const char *str, uint32_t len);
ir_ref ir_strtab_update(ir_strtab *strtab, const char *str, uint32_t len, ir_ref val);
const char *ir_strtab_str(const ir_strtab *strtab, ir_ref idx);
const char *ir_strtab_strl(const ir_strtab *strtab, ir_ref idx, size_t *len);
void ir_strtab_apply(const ir_strtab *strtab, ir_strtab_apply_t func);
void ir_strtab_free(ir_strtab *strtab);
/* IR Context Flags */
#define IR_FUNCTION (1<<0) /* Generate a function. */
#define IR_FASTCALL_FUNC (1<<1) /* Generate a function with fastcall calling convention, x86 32-bit only. */
#define IR_VARARG_FUNC (1<<2)
#define IR_BUILTIN_FUNC (1<<3)
#define IR_STATIC (1<<4)
#define IR_EXTERN (1<<5)
#define IR_CONST (1<<6)
#define IR_INITIALIZED (1<<7) /* sym data flag: constant or an initialized variable */
#define IR_CONST_STRING (1<<8) /* sym data flag: constant string */
#define IR_SKIP_PROLOGUE (1<<8) /* Don't generate function prologue. */
#define IR_USE_FRAME_POINTER (1<<9)
#define IR_PREALLOCATED_STACK (1<<10)
#define IR_NO_STACK_COMBINE (1<<11)
#define IR_START_BR_TARGET (1<<12)
#define IR_ENTRY_BR_TARGET (1<<13)
#define IR_GEN_ENDBR (1<<14)
#define IR_MERGE_EMPTY_ENTRIES (1<<15)
#define IR_OPT_INLINE (1<<16)
#define IR_OPT_FOLDING (1<<17)
#define IR_OPT_CFG (1<<18) /* merge BBs, by remove END->BEGIN nodes during CFG construction */
#define IR_OPT_MEM2SSA (1<<19)
#define IR_OPT_CODEGEN (1<<20)
#define IR_GEN_NATIVE (1<<21)
#define IR_GEN_CODE (1<<22) /* C or LLVM */
#define IR_GEN_CACHE_DEMOTE (1<<23) /* Demote the generated code from closest CPU caches */
/* debug related */
#ifdef IR_DEBUG
# define IR_DEBUG_SCCP (1<<26)
# define IR_DEBUG_GCM (1<<27)
# define IR_DEBUG_GCM_SPLIT (1<<28)
# define IR_DEBUG_SCHEDULE (1<<29)
# define IR_DEBUG_RA (1<<30)
# define IR_DEBUG_BB_SCHEDULE (1U<<31)
#endif
typedef struct _ir_ctx ir_ctx;
typedef struct _ir_use_list ir_use_list;
typedef struct _ir_block ir_block;
typedef struct _ir_arena ir_arena;
typedef struct _ir_live_interval ir_live_interval;
typedef struct _ir_live_range ir_live_range;
typedef struct _ir_loader ir_loader;
typedef int8_t ir_regs[4];
typedef void (*ir_snapshot_create_t)(ir_ctx *ctx, ir_ref addr);
#if defined(IR_TARGET_AARCH64)
typedef const void *(*ir_get_exit_addr_t)(uint32_t exit_num);
typedef const void *(*ir_get_veneer_t)(ir_ctx *ctx, const void *addr);
typedef bool (*ir_set_veneer_t)(ir_ctx *ctx, const void *addr, const void *veneer);
#endif
typedef struct _ir_code_buffer {
void *start;
void *end;
void *pos;
} ir_code_buffer;
struct _ir_ctx {
ir_insn *ir_base; /* two directional array - instructions grow down, constants grow up */
ir_ref insns_count; /* number of instructions stored in instructions buffer */
ir_ref insns_limit; /* size of allocated instructions buffer (it's extended when overflow) */
ir_ref consts_count; /* number of constants stored in constants buffer */
ir_ref consts_limit; /* size of allocated constants buffer (it's extended when overflow) */
uint32_t flags; /* IR context flags (see IR_* defines above) */
uint32_t flags2; /* IR context private flags (see IR_* defines in ir_private.h) */
ir_type ret_type; /* Function return type */
uint32_t mflags; /* CPU specific flags (see IR_X86_... macros below) */
int32_t status; /* non-zero error code (see IR_ERROR_... macros), app may use negative codes */
ir_ref fold_cse_limit; /* CSE finds identical insns backward from "insn_count" to "fold_cse_limit" */
ir_insn fold_insn; /* temporary storage for folding engine */
ir_hashtab *binding;
ir_use_list *use_lists; /* def->use lists for each instruction */
ir_ref *use_edges; /* the actual uses: use = ctx->use_edges[ctx->use_lists[def].refs + n] */
ir_ref use_edges_count; /* number of elements in use_edges[] array */
uint32_t cfg_blocks_count; /* number of elements in cfg_blocks[] array */
uint32_t cfg_edges_count; /* number of elements in cfg_edges[] array */
ir_block *cfg_blocks; /* list of basic blocks (starts from 1) */
uint32_t *cfg_edges; /* the actual basic blocks predecessors and successors edges */
uint32_t *cfg_map; /* map of instructions to basic block number */
uint32_t *cfg_schedule; /* BB order for code generation */
uint32_t *rules; /* array of target specific code-generation rules (for each instruction) */
uint32_t *vregs;
ir_ref vregs_count;
int32_t spill_base; /* base register for special spill area (e.g. PHP VM frame pointer) */
uint64_t fixed_regset; /* fixed registers, excluded for regular register allocation */
int32_t fixed_stack_red_zone; /* reusable stack allocated by caller (default 0) */
int32_t fixed_stack_frame_size; /* fixed stack allocated by generated code for spills and registers save/restore */
int32_t fixed_call_stack_size; /* fixed preallocated stack for parameter passing (default 0) */
uint64_t fixed_save_regset; /* registers that always saved/restored in prologue/epilogue */
uint32_t locals_area_size;
uint32_t gp_reg_params;
uint32_t fp_reg_params;
int32_t param_stack_size;
ir_live_interval **live_intervals;
ir_arena *arena;
ir_live_range *unused_ranges;
ir_regs *regs;
ir_strtab *fused_regs;
ir_ref *prev_ref;
union {
void *data;
ir_ref control; /* used by IR construction API (see ir_builder.h) */
ir_ref bb_start; /* used by target CPU instruction matcher */
ir_ref vars; /* list of VARs (used by register allocator) */
};
ir_snapshot_create_t snapshot_create;
int32_t stack_frame_alignment;
int32_t stack_frame_size; /* spill stack frame size (used by register allocator and code generator) */
int32_t call_stack_size; /* stack for parameter passing (used by register allocator and code generator) */
uint64_t used_preserved_regs;
#ifdef IR_TARGET_X86
int32_t ret_slot;
#endif
uint32_t rodata_offset;
uint32_t jmp_table_offset;
uint32_t entries_count;
uint32_t *entries; /* array of ENTRY blocks */
void *osr_entry_loads;
ir_code_buffer *code_buffer;
#if defined(IR_TARGET_AARCH64)
int32_t deoptimization_exits;
const void *deoptimization_exits_base;
ir_get_exit_addr_t get_exit_addr;
ir_get_veneer_t get_veneer;
ir_set_veneer_t set_veneer;
#endif
ir_loader *loader;
ir_strtab strtab;
ir_ref prev_insn_chain[IR_LAST_FOLDABLE_OP + 1];
ir_ref prev_const_chain[IR_LAST_TYPE];
};
/* Basic IR Construction API (implementation in ir.c) */
void ir_init(ir_ctx *ctx, uint32_t flags, ir_ref consts_limit, ir_ref insns_limit);
void ir_free(ir_ctx *ctx);
void ir_truncate(ir_ctx *ctx);
ir_ref ir_const(ir_ctx *ctx, ir_val val, uint8_t type);
ir_ref ir_const_i8(ir_ctx *ctx, int8_t c);
ir_ref ir_const_i16(ir_ctx *ctx, int16_t c);
ir_ref ir_const_i32(ir_ctx *ctx, int32_t c);
ir_ref ir_const_i64(ir_ctx *ctx, int64_t c);
ir_ref ir_const_u8(ir_ctx *ctx, uint8_t c);
ir_ref ir_const_u16(ir_ctx *ctx, uint16_t c);
ir_ref ir_const_u32(ir_ctx *ctx, uint32_t c);
ir_ref ir_const_u64(ir_ctx *ctx, uint64_t c);
ir_ref ir_const_bool(ir_ctx *ctx, bool c);
ir_ref ir_const_char(ir_ctx *ctx, char c);
ir_ref ir_const_float(ir_ctx *ctx, float c);
ir_ref ir_const_double(ir_ctx *ctx, double c);
ir_ref ir_const_addr(ir_ctx *ctx, uintptr_t c);
ir_ref ir_const_func_addr(ir_ctx *ctx, uintptr_t c, ir_ref proto);
ir_ref ir_const_func(ir_ctx *ctx, ir_ref str, ir_ref proto);
ir_ref ir_const_sym(ir_ctx *ctx, ir_ref str);
ir_ref ir_const_str(ir_ctx *ctx, ir_ref str);
ir_ref ir_unique_const_addr(ir_ctx *ctx, uintptr_t c);
void ir_print_const(const ir_ctx *ctx, const ir_insn *insn, FILE *f, bool quoted);
ir_ref ir_str(ir_ctx *ctx, const char *s);
ir_ref ir_strl(ir_ctx *ctx, const char *s, size_t len);
const char *ir_get_str(const ir_ctx *ctx, ir_ref idx);
const char *ir_get_strl(const ir_ctx *ctx, ir_ref idx, size_t *len);
#define IR_MAX_PROTO_PARAMS 255
typedef struct _ir_proto_t {
uint8_t flags;
uint8_t ret_type;
uint8_t params_count;
uint8_t param_types[5];
} ir_proto_t;
ir_ref ir_proto_0(ir_ctx *ctx, uint8_t flags, ir_type ret_type);
ir_ref ir_proto_1(ir_ctx *ctx, uint8_t flags, ir_type ret_type, ir_type t1);
ir_ref ir_proto_2(ir_ctx *ctx, uint8_t flags, ir_type ret_type, ir_type t1, ir_type t2);
ir_ref ir_proto_3(ir_ctx *ctx, uint8_t flags, ir_type ret_type, ir_type t1, ir_type t2, ir_type t3);
ir_ref ir_proto_4(ir_ctx *ctx, uint8_t flags, ir_type ret_type, ir_type t1, ir_type t2, ir_type t3,
ir_type t4);
ir_ref ir_proto_5(ir_ctx *ctx, uint8_t flags, ir_type ret_type, ir_type t1, ir_type t2, ir_type t3,
ir_type t4, ir_type t5);
ir_ref ir_proto(ir_ctx *ctx, uint8_t flags, ir_type ret_type, uint32_t params_counts, uint8_t *param_types);
ir_ref ir_emit(ir_ctx *ctx, uint32_t opt, ir_ref op1, ir_ref op2, ir_ref op3);
ir_ref ir_emit0(ir_ctx *ctx, uint32_t opt);
ir_ref ir_emit1(ir_ctx *ctx, uint32_t opt, ir_ref op1);
ir_ref ir_emit2(ir_ctx *ctx, uint32_t opt, ir_ref op1, ir_ref op2);
ir_ref ir_emit3(ir_ctx *ctx, uint32_t opt, ir_ref op1, ir_ref op2, ir_ref op3);
ir_ref ir_emit_N(ir_ctx *ctx, uint32_t opt, int32_t count);
void ir_set_op(ir_ctx *ctx, ir_ref ref, int32_t n, ir_ref val);
ir_ref ir_get_op(ir_ctx *ctx, ir_ref ref, int32_t n);
IR_ALWAYS_INLINE void ir_set_op1(ir_ctx *ctx, ir_ref ref, ir_ref val)
{
ctx->ir_base[ref].op1 = val;
}
IR_ALWAYS_INLINE void ir_set_op2(ir_ctx *ctx, ir_ref ref, ir_ref val)
{
ctx->ir_base[ref].op2 = val;
}
IR_ALWAYS_INLINE void ir_set_op3(ir_ctx *ctx, ir_ref ref, ir_ref val)
{
ctx->ir_base[ref].op3 = val;
}
IR_ALWAYS_INLINE ir_ref ir_insn_op(const ir_insn *insn, int32_t n)
{
const ir_ref *p = insn->ops + n;
return *p;
}
IR_ALWAYS_INLINE void ir_insn_set_op(ir_insn *insn, int32_t n, ir_ref val)
{
ir_ref *p = insn->ops + n;
*p = val;
}
IR_ALWAYS_INLINE uint32_t ir_insn_find_op(const ir_insn *insn, ir_ref val)
{
int i, n = insn->inputs_count;
for (i = 1; i <= n; i++) {
if (ir_insn_op(insn, i) == val) {
return i;
}
}
return 0;
}
ir_ref ir_fold(ir_ctx *ctx, uint32_t opt, ir_ref op1, ir_ref op2, ir_ref op3);
ir_ref ir_fold0(ir_ctx *ctx, uint32_t opt);
ir_ref ir_fold1(ir_ctx *ctx, uint32_t opt, ir_ref op1);
ir_ref ir_fold2(ir_ctx *ctx, uint32_t opt, ir_ref op1, ir_ref op2);
ir_ref ir_fold3(ir_ctx *ctx, uint32_t opt, ir_ref op1, ir_ref op2, ir_ref op3);
ir_ref ir_param(ir_ctx *ctx, ir_type type, ir_ref region, const char *name, int pos);
ir_ref ir_var(ir_ctx *ctx, ir_type type, ir_ref region, const char *name);
/* IR Binding */
ir_ref ir_bind(ir_ctx *ctx, ir_ref var, ir_ref def);
ir_ref ir_binding_find(const ir_ctx *ctx, ir_ref ref);
/* Def -> Use lists */
void ir_build_def_use_lists(ir_ctx *ctx);
/* SSA Construction */
int ir_mem2ssa(ir_ctx *ctx);
/* CFG - Control Flow Graph (implementation in ir_cfg.c) */
int ir_build_cfg(ir_ctx *ctx);
int ir_build_dominators_tree(ir_ctx *ctx);
int ir_find_loops(ir_ctx *ctx);
int ir_schedule_blocks(ir_ctx *ctx);
void ir_reset_cfg(ir_ctx *ctx);
/* SCCP - Sparse Conditional Constant Propagation (implementation in ir_sccp.c) */
int ir_sccp(ir_ctx *ctx);
/* GCM - Global Code Motion and scheduling (implementation in ir_gcm.c) */
int ir_gcm(ir_ctx *ctx);
int ir_schedule(ir_ctx *ctx);
/* Liveness & Register Allocation (implementation in ir_ra.c) */
#define IR_REG_NONE -1
#define IR_REG_SPILL_LOAD (1<<6)
#define IR_REG_SPILL_STORE (1<<6)
#define IR_REG_SPILL_SPECIAL (1<<7)
#define IR_REG_SPILLED(r) \
((r) & (IR_REG_SPILL_LOAD|IR_REG_SPILL_STORE|IR_REG_SPILL_SPECIAL))
#define IR_REG_NUM(r) \
((int8_t)((r) == IR_REG_NONE ? IR_REG_NONE : ((r) & ~(IR_REG_SPILL_LOAD|IR_REG_SPILL_STORE|IR_REG_SPILL_SPECIAL))))
int ir_assign_virtual_registers(ir_ctx *ctx);
int ir_compute_live_ranges(ir_ctx *ctx);
int ir_coalesce(ir_ctx *ctx);
int ir_compute_dessa_moves(ir_ctx *ctx);
int ir_reg_alloc(ir_ctx *ctx);
int ir_regs_number(void);
bool ir_reg_is_int(int32_t reg);
const char *ir_reg_name(int8_t reg, ir_type type);
int32_t ir_get_spill_slot_offset(ir_ctx *ctx, ir_ref ref);
/* Target CPU instruction selection and code generation (see ir_x86.c) */
int ir_match(ir_ctx *ctx);
void *ir_emit_code(ir_ctx *ctx, size_t *size);
bool ir_needs_thunk(ir_code_buffer *code_buffer, void *addr);
void *ir_emit_thunk(ir_code_buffer *code_buffer, void *addr, size_t *size_ptr);
void ir_fix_thunk(void *thunk_entry, void *addr);
/* Target address resolution (implementation in ir_emit.c) */
void *ir_resolve_sym_name(const char *name);
/* Target CPU disassembler (implementation in ir_disasm.c) */
int ir_disasm_init(void);
void ir_disasm_free(void);
void ir_disasm_add_symbol(const char *name, uint64_t addr, uint64_t size);
const char* ir_disasm_find_symbol(uint64_t addr, int64_t *offset);
int ir_disasm(const char *name,
const void *start,
size_t size,
bool asm_addr,
ir_ctx *ctx,
FILE *f);
/* Linux perf interface (implementation in ir_perf.c) */
int ir_perf_jitdump_open(void);
int ir_perf_jitdump_close(void);
int ir_perf_jitdump_register(const char *name, const void *start, size_t size);
void ir_perf_map_register(const char *name, const void *start, size_t size);
/* GDB JIT interface (implementation in ir_gdb.c) */
int ir_gdb_register(const char *name,
const void *start,
size_t size,
uint32_t sp_offset,
uint32_t sp_adjustment);
void ir_gdb_unregister_all(void);
bool ir_gdb_present(void);
/* IR load API (implementation in ir_load.c) */
struct _ir_loader {
uint32_t default_func_flags;
bool (*init_module) (ir_loader *loader, const char *name, const char *filename, const char *target);
bool (*external_sym_dcl) (ir_loader *loader, const char *name, uint32_t flags);
bool (*external_func_dcl) (ir_loader *loader, const char *name,
uint32_t flags, ir_type ret_type, uint32_t params_count, const uint8_t *param_types);
bool (*forward_func_dcl) (ir_loader *loader, const char *name,
uint32_t flags, ir_type ret_type, uint32_t params_count, const uint8_t *param_types);
bool (*sym_dcl) (ir_loader *loader, const char *name, uint32_t flags, size_t size);
bool (*sym_data) (ir_loader *loader, ir_type type, uint32_t count, const void *data);
bool (*sym_data_str) (ir_loader *loader, const char *str, size_t len);
bool (*sym_data_pad) (ir_loader *loader, size_t offset);
bool (*sym_data_ref) (ir_loader *loader, ir_op op, const char *ref, uintptr_t offset);
bool (*sym_data_end) (ir_loader *loader, uint32_t flags);
bool (*func_init) (ir_loader *loader, ir_ctx *ctx, const char *name);
bool (*func_process) (ir_loader *loader, ir_ctx *ctx, const char *name);
void*(*resolve_sym_name) (ir_loader *loader, const char *name, bool add_thunk);
bool (*has_sym) (ir_loader *loader, const char *name);
bool (*add_sym) (ir_loader *loader, const char *name, void *addr);
};
void ir_loader_init(void);
void ir_loader_free(void);
int ir_load(ir_loader *loader, FILE *f);
/* IR LLVM load API (implementation in ir_load_llvm.c) */
int ir_load_llvm_bitcode(ir_loader *loader, const char *filename);
int ir_load_llvm_asm(ir_loader *loader, const char *filename);
/* IR save API (implementation in ir_save.c) */
#define IR_SAVE_CFG (1<<0) /* add info about CFG */
#define IR_SAVE_CFG_MAP (1<<1) /* add info about CFG block assignment */
#define IR_SAVE_USE_LISTS (1<<2) /* add info about def->use lists */
#define IR_SAVE_RULES (1<<3) /* add info about selected code-generation rules */
#define IR_SAVE_REGS (1<<4) /* add info about selected registers */
void ir_print_proto(const ir_ctx *ctx, ir_ref proto, FILE *f);
void ir_save(const ir_ctx *ctx, uint32_t save_flags, FILE *f);
/* IR debug dump API (implementation in ir_dump.c) */
void ir_dump(const ir_ctx *ctx, FILE *f);
void ir_dump_dot(const ir_ctx *ctx, const char *name, FILE *f);
void ir_dump_use_lists(const ir_ctx *ctx, FILE *f);
void ir_dump_cfg(ir_ctx *ctx, FILE *f);
void ir_dump_cfg_map(const ir_ctx *ctx, FILE *f);
void ir_dump_live_ranges(const ir_ctx *ctx, FILE *f);
void ir_dump_codegen(const ir_ctx *ctx, FILE *f);
/* IR to C conversion (implementation in ir_emit_c.c) */
int ir_emit_c(ir_ctx *ctx, const char *name, FILE *f);
void ir_emit_c_func_decl(const char *name, uint32_t flags, ir_type ret_type, uint32_t params_count, const uint8_t *param_types, FILE *f);
void ir_emit_c_sym_decl(const char *name, uint32_t flags, FILE *f);
/* IR to LLVM conversion (implementation in ir_emit_llvm.c) */
int ir_emit_llvm(ir_ctx *ctx, const char *name, FILE *f);
void ir_emit_llvm_func_decl(const char *name, uint32_t flags, ir_type ret_type, uint32_t params_count, const uint8_t *param_types, FILE *f);
void ir_emit_llvm_sym_decl(const char *name, uint32_t flags, FILE *f);
/* IR verification API (implementation in ir_check.c) */
bool ir_check(const ir_ctx *ctx);
void ir_consistency_check(void);
/* Code patching (implementation in ir_patch.c) */
int ir_patch(const void *code, size_t size, uint32_t jmp_table_size, const void *from_addr, const void *to_addr);
/* CPU information (implementation in ir_cpuinfo.c) */
#if defined(IR_TARGET_X86) || defined(IR_TARGET_X64)
# define IR_X86_SSE2 (1<<0)
# define IR_X86_SSE3 (1<<1)
# define IR_X86_SSSE3 (1<<2)
# define IR_X86_SSE41 (1<<3)
# define IR_X86_SSE42 (1<<4)
# define IR_X86_AVX (1<<5)
# define IR_X86_AVX2 (1<<6)
# define IR_X86_BMI1 (1<<7)
# define IR_X86_CLDEMOTE (1<<8)
#endif
uint32_t ir_cpuinfo(void);
/* Deoptimization helpers */
const void *ir_emit_exitgroup(uint32_t first_exit_point, uint32_t exit_points_per_group, const void *exit_addr, ir_code_buffer *code_buffer, size_t *size_ptr);
/* A reference IR JIT compiler */
IR_ALWAYS_INLINE void *ir_jit_compile(ir_ctx *ctx, int opt_level, size_t *size)
{
if (opt_level == 0) {
if (ctx->flags & IR_OPT_FOLDING) {
// IR_ASSERT(0 && "IR_OPT_FOLDING is incompatible with -O0");
return NULL;
}
ctx->flags &= ~(IR_OPT_CFG | IR_OPT_CODEGEN);
ir_build_def_use_lists(ctx);
if (!ir_build_cfg(ctx)
|| !ir_match(ctx)
|| !ir_assign_virtual_registers(ctx)
|| !ir_compute_dessa_moves(ctx)) {
return NULL;
}
return ir_emit_code(ctx, size);
} else if (opt_level > 0) {
if (!(ctx->flags & IR_OPT_FOLDING)) {
// IR_ASSERT(0 && "IR_OPT_FOLDING must be set in ir_init() for -O1 and -O2");
return NULL;
}
ctx->flags |= IR_OPT_CFG | IR_OPT_CODEGEN;
ir_build_def_use_lists(ctx);
if (ctx->flags & IR_OPT_MEM2SSA) {
if (!ir_build_cfg(ctx)
|| !ir_build_dominators_tree(ctx)
|| !ir_mem2ssa(ctx)) {
return NULL;
}
ir_reset_cfg(ctx);
}
if (opt_level > 1) {
if (!ir_sccp(ctx)) {
return NULL;
}
}
if (!ctx->cfg_blocks) {
if (!ir_build_cfg(ctx)
|| !ir_build_dominators_tree(ctx)) {
return NULL;
}
}
if (!ir_find_loops(ctx)
|| !ir_gcm(ctx)
|| !ir_schedule(ctx)
|| !ir_match(ctx)
|| !ir_assign_virtual_registers(ctx)
|| !ir_compute_live_ranges(ctx)
|| !ir_coalesce(ctx)
|| !ir_reg_alloc(ctx)
|| !ir_schedule_blocks(ctx)) {
return NULL;
}
return ir_emit_code(ctx, size);
} else {
// IR_ASSERT(0 && "wrong optimization level");
return NULL;
}
}
#define IR_ERROR_CODE_MEM_OVERFLOW 1
#define IR_ERROR_FIXED_STACK_FRAME_OVERFLOW 2
#define IR_ERROR_UNSUPPORTED_CODE_RULE 3
#define IR_ERROR_LINK 4
#define IR_ERROR_ENCODE 5
/* IR Memmory Allocation */
#ifndef ir_mem_malloc
# define ir_mem_malloc malloc
#endif
#ifndef ir_mem_calloc
# define ir_mem_calloc calloc
#endif
#ifndef ir_mem_realloc
# define ir_mem_realloc realloc
#endif
#ifndef ir_mem_free
# define ir_mem_free free
#endif
#ifndef ir_mem_pmalloc
# define ir_mem_pmalloc malloc
#endif
#ifndef ir_mem_pcalloc
# define ir_mem_pcalloc calloc
#endif
#ifndef ir_mem_prealloc
# define ir_mem_prealloc realloc
#endif
#ifndef ir_mem_pfree
# define ir_mem_pfree free
#endif
void *ir_mem_mmap(size_t size);
int ir_mem_unmap(void *ptr, size_t size);
int ir_mem_protect(void *ptr, size_t size);
int ir_mem_unprotect(void *ptr, size_t size);
int ir_mem_flush(void *ptr, size_t size);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* IR_H */
|