sljitNativeMIPS_common.c revision 1.1.1.3.14.1
1 /* $NetBSD: sljitNativeMIPS_common.c,v 1.1.1.3.14.1 2014/08/10 06:55:41 tls Exp $ */ 2 3 /* 4 * Stack-less Just-In-Time compiler 5 * 6 * Copyright 2009-2012 Zoltan Herczeg (hzmester (at) freemail.hu). All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without modification, are 9 * permitted provided that the following conditions are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright notice, this list of 12 * conditions and the following disclaimer. 13 * 14 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 15 * of conditions and the following disclaimer in the documentation and/or other materials 16 * provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY 19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 21 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 23 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 26 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* Latest MIPS architecture. */ 30 /* Automatically detect SLJIT_MIPS_32_64 */ 31 32 SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name(void) 33 { 34 #if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) 35 return "MIPS V" SLJIT_CPUINFO; 36 #else 37 return "MIPS III" SLJIT_CPUINFO; 38 #endif 39 } 40 41 /* Length of an instruction word 42 Both for mips-32 and mips-64 */ 43 typedef sljit_ui sljit_ins; 44 45 #define TMP_REG1 (SLJIT_NO_REGISTERS + 1) 46 #define TMP_REG2 (SLJIT_NO_REGISTERS + 2) 47 #define TMP_REG3 (SLJIT_NO_REGISTERS + 3) 48 49 /* For position independent code, t9 must contain the function address. */ 50 #define PIC_ADDR_REG TMP_REG2 51 52 /* TMP_EREGs are used mainly for arithmetic operations. */ 53 #define TMP_EREG1 15 54 #define TMP_EREG2 24 55 /* Floating point status register. */ 56 #define FCSR_REG 31 57 /* Return address register. */ 58 #define RETURN_ADDR_REG 31 59 60 /* Flags are keept in volatile registers. */ 61 #define EQUAL_FLAG 7 62 /* And carry flag as well. */ 63 #define ULESS_FLAG 10 64 #define UGREATER_FLAG 11 65 #define LESS_FLAG 12 66 #define GREATER_FLAG 13 67 #define OVERFLOW_FLAG 14 68 69 #define TMP_FREG1 (0) 70 #define TMP_FREG2 ((SLJIT_FLOAT_REG6 + 1) << 1) 71 72 static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 4] = { 73 0, 2, 5, 6, 3, 8, 16, 17, 18, 19, 20, 29, 4, 25, 9 74 }; 75 76 /* --------------------------------------------------------------------- */ 77 /* Instrucion forms */ 78 /* --------------------------------------------------------------------- */ 79 80 #define S(s) (reg_map[s] << 21) 81 #define T(t) (reg_map[t] << 16) 82 #define D(d) (reg_map[d] << 11) 83 /* Absolute registers. */ 84 #define SA(s) ((s) << 21) 85 #define TA(t) ((t) << 16) 86 #define DA(d) ((d) << 11) 87 #define FT(t) ((t) << 16) 88 #define FS(s) ((s) << 11) 89 #define FD(d) ((d) << 6) 90 #define IMM(imm) ((imm) & 0xffff) 91 #define SH_IMM(imm) ((imm) << 6) 92 93 #define DR(dr) (reg_map[dr]) 94 #define HI(opcode) ((opcode) << 26) 95 #define LO(opcode) (opcode) 96 /* S = (16 << 21) D = (17 << 21) */ 97 #define FMT_SD (16 << 21) 98 99 #define ABS_fmt (HI(17) | FMT_SD | LO(5)) 100 #define ADD_fmt (HI(17) | FMT_SD | LO(0)) 101 #define ADDIU (HI(9)) 102 #define ADDU (HI(0) | LO(33)) 103 #define AND (HI(0) | LO(36)) 104 #define ANDI (HI(12)) 105 #define B (HI(4)) 106 #define BAL (HI(1) | (17 << 16)) 107 #define BC1F (HI(17) | (8 << 21)) 108 #define BC1T (HI(17) | (8 << 21) | (1 << 16)) 109 #define BEQ (HI(4)) 110 #define BGEZ (HI(1) | (1 << 16)) 111 #define BGTZ (HI(7)) 112 #define BLEZ (HI(6)) 113 #define BLTZ (HI(1) | (0 << 16)) 114 #define BNE (HI(5)) 115 #define BREAK (HI(0) | LO(13)) 116 #define CFC1 (HI(17) | (2 << 21)) 117 #define C_UN_fmt (HI(17) | FMT_SD | LO(49)) 118 #define C_UEQ_fmt (HI(17) | FMT_SD | LO(51)) 119 #define C_ULE_fmt (HI(17) | FMT_SD | LO(55)) 120 #define C_ULT_fmt (HI(17) | FMT_SD | LO(53)) 121 #define DADDIU (HI(25)) 122 #define DADDU (HI(0) | LO(45)) 123 #define DDIV (HI(0) | LO(30)) 124 #define DDIVU (HI(0) | LO(31)) 125 #define DIV (HI(0) | LO(26)) 126 #define DIVU (HI(0) | LO(27)) 127 #define DIV_fmt (HI(17) | FMT_SD | LO(3)) 128 #define DMULT (HI(0) | LO(28)) 129 #define DMULTU (HI(0) | LO(29)) 130 #define DSLL (HI(0) | LO(56)) 131 #define DSLL32 (HI(0) | LO(60)) 132 #define DSLLV (HI(0) | LO(20)) 133 #define DSRA (HI(0) | LO(59)) 134 #define DSRA32 (HI(0) | LO(63)) 135 #define DSRAV (HI(0) | LO(23)) 136 #define DSRL (HI(0) | LO(58)) 137 #define DSRL32 (HI(0) | LO(62)) 138 #define DSRLV (HI(0) | LO(22)) 139 #define DSUBU (HI(0) | LO(47)) 140 #define J (HI(2)) 141 #define JAL (HI(3)) 142 #define JALR (HI(0) | LO(9)) 143 #define JR (HI(0) | LO(8)) 144 #define LD (HI(55)) 145 #define LUI (HI(15)) 146 #define LW (HI(35)) 147 #define MFHI (HI(0) | LO(16)) 148 #define MFLO (HI(0) | LO(18)) 149 #define MOV_fmt (HI(17) | FMT_SD | LO(6)) 150 #define MUL_fmt (HI(17) | FMT_SD | LO(2)) 151 #define MULT (HI(0) | LO(24)) 152 #define MULTU (HI(0) | LO(25)) 153 #define NEG_fmt (HI(17) | FMT_SD | LO(7)) 154 #define NOP (HI(0) | LO(0)) 155 #define NOR (HI(0) | LO(39)) 156 #define OR (HI(0) | LO(37)) 157 #define ORI (HI(13)) 158 #define SD (HI(63)) 159 #define SLT (HI(0) | LO(42)) 160 #define SLTI (HI(10)) 161 #define SLTIU (HI(11)) 162 #define SLTU (HI(0) | LO(43)) 163 #define SLL (HI(0) | LO(0)) 164 #define SLLV (HI(0) | LO(4)) 165 #define SRL (HI(0) | LO(2)) 166 #define SRLV (HI(0) | LO(6)) 167 #define SRA (HI(0) | LO(3)) 168 #define SRAV (HI(0) | LO(7)) 169 #define SUB_fmt (HI(17) | FMT_SD | LO(1)) 170 #define SUBU (HI(0) | LO(35)) 171 #define SW (HI(43)) 172 #define XOR (HI(0) | LO(38)) 173 #define XORI (HI(14)) 174 175 #if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) 176 #define CLZ (HI(28) | LO(32)) 177 #define DCLZ (HI(28) | LO(36)) 178 #define MUL (HI(28) | LO(2)) 179 #define SEB (HI(31) | (16 << 6) | LO(32)) 180 #define SEH (HI(31) | (24 << 6) | LO(32)) 181 #endif 182 183 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 184 #define ADDU_W ADDU 185 #define ADDIU_W ADDIU 186 #define SLL_W SLL 187 #define SUBU_W SUBU 188 #else 189 #define ADDU_W DADDU 190 #define ADDIU_W DADDIU 191 #define SLL_W DSLL 192 #define SUBU_W DSUBU 193 #endif 194 195 #define SIMM_MAX (0x7fff) 196 #define SIMM_MIN (-0x8000) 197 #define UIMM_MAX (0xffff) 198 199 /* dest_reg is the absolute name of the register 200 Useful for reordering instructions in the delay slot. */ 201 static sljit_si push_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_si delay_slot) 202 { 203 SLJIT_ASSERT(delay_slot == MOVABLE_INS || delay_slot >= UNMOVABLE_INS 204 || delay_slot == ((ins >> 11) & 0x1f) || delay_slot == ((ins >> 16) & 0x1f)); 205 sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins)); 206 FAIL_IF(!ptr); 207 *ptr = ins; 208 compiler->size++; 209 compiler->delay_slot = delay_slot; 210 return SLJIT_SUCCESS; 211 } 212 213 static SLJIT_INLINE sljit_ins invert_branch(sljit_si flags) 214 { 215 return (flags & IS_BIT26_COND) ? (1 << 26) : (1 << 16); 216 } 217 218 static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code) 219 { 220 sljit_sw diff; 221 sljit_uw target_addr; 222 sljit_ins *inst; 223 sljit_ins saved_inst; 224 225 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 226 if (jump->flags & (SLJIT_REWRITABLE_JUMP | IS_CALL)) 227 return code_ptr; 228 #else 229 if (jump->flags & SLJIT_REWRITABLE_JUMP) 230 return code_ptr; 231 #endif 232 233 if (jump->flags & JUMP_ADDR) 234 target_addr = jump->u.target; 235 else { 236 SLJIT_ASSERT(jump->flags & JUMP_LABEL); 237 target_addr = (sljit_uw)(code + jump->u.label->size); 238 } 239 inst = (sljit_ins*)jump->addr; 240 if (jump->flags & IS_COND) 241 inst--; 242 243 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 244 if (jump->flags & IS_CALL) 245 goto keep_address; 246 #endif 247 248 /* B instructions. */ 249 if (jump->flags & IS_MOVABLE) { 250 diff = ((sljit_sw)target_addr - (sljit_sw)(inst)) >> 2; 251 if (diff <= SIMM_MAX && diff >= SIMM_MIN) { 252 jump->flags |= PATCH_B; 253 254 if (!(jump->flags & IS_COND)) { 255 inst[0] = inst[-1]; 256 inst[-1] = (jump->flags & IS_JAL) ? BAL : B; 257 jump->addr -= sizeof(sljit_ins); 258 return inst; 259 } 260 saved_inst = inst[0]; 261 inst[0] = inst[-1]; 262 inst[-1] = saved_inst ^ invert_branch(jump->flags); 263 jump->addr -= 2 * sizeof(sljit_ins); 264 return inst; 265 } 266 } 267 else { 268 diff = ((sljit_sw)target_addr - (sljit_sw)(inst + 1)) >> 2; 269 if (diff <= SIMM_MAX && diff >= SIMM_MIN) { 270 jump->flags |= PATCH_B; 271 272 if (!(jump->flags & IS_COND)) { 273 inst[0] = (jump->flags & IS_JAL) ? BAL : B; 274 inst[1] = NOP; 275 return inst + 1; 276 } 277 inst[0] = inst[0] ^ invert_branch(jump->flags); 278 inst[1] = NOP; 279 jump->addr -= sizeof(sljit_ins); 280 return inst + 1; 281 } 282 } 283 284 if (jump->flags & IS_COND) { 285 if ((jump->flags & IS_MOVABLE) && (target_addr & ~0xfffffff) == ((jump->addr + 2 * sizeof(sljit_ins)) & ~0xfffffff)) { 286 jump->flags |= PATCH_J; 287 saved_inst = inst[0]; 288 inst[0] = inst[-1]; 289 inst[-1] = (saved_inst & 0xffff0000) | 3; 290 inst[1] = J; 291 inst[2] = NOP; 292 return inst + 2; 293 } 294 else if ((target_addr & ~0xfffffff) == ((jump->addr + 3 * sizeof(sljit_ins)) & ~0xfffffff)) { 295 jump->flags |= PATCH_J; 296 inst[0] = (inst[0] & 0xffff0000) | 3; 297 inst[1] = NOP; 298 inst[2] = J; 299 inst[3] = NOP; 300 jump->addr += sizeof(sljit_ins); 301 return inst + 3; 302 } 303 } 304 else { 305 /* J instuctions. */ 306 if ((jump->flags & IS_MOVABLE) && (target_addr & ~0xfffffff) == (jump->addr & ~0xfffffff)) { 307 jump->flags |= PATCH_J; 308 inst[0] = inst[-1]; 309 inst[-1] = (jump->flags & IS_JAL) ? JAL : J; 310 jump->addr -= sizeof(sljit_ins); 311 return inst; 312 } 313 314 if ((target_addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)) { 315 jump->flags |= PATCH_J; 316 inst[0] = (jump->flags & IS_JAL) ? JAL : J; 317 inst[1] = NOP; 318 return inst + 1; 319 } 320 } 321 322 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 323 keep_address: 324 if (target_addr <= 0x7fffffff) { 325 jump->flags |= PATCH_ABS32; 326 if (jump->flags & IS_COND) { 327 inst[0] -= 4; 328 inst++; 329 } 330 inst[2] = inst[6]; 331 inst[3] = inst[7]; 332 return inst + 3; 333 } 334 if (target_addr <= 0x7fffffffffffl) { 335 jump->flags |= PATCH_ABS48; 336 if (jump->flags & IS_COND) { 337 inst[0] -= 2; 338 inst++; 339 } 340 inst[4] = inst[6]; 341 inst[5] = inst[7]; 342 return inst + 5; 343 } 344 #endif 345 346 return code_ptr; 347 } 348 349 #ifdef __GNUC__ 350 static __attribute__ ((noinline)) void sljit_cache_flush(void* code, void* code_ptr) 351 { 352 SLJIT_CACHE_FLUSH(code, code_ptr); 353 } 354 #endif 355 356 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler) 357 { 358 struct sljit_memory_fragment *buf; 359 sljit_ins *code; 360 sljit_ins *code_ptr; 361 sljit_ins *buf_ptr; 362 sljit_ins *buf_end; 363 sljit_uw word_count; 364 sljit_uw addr; 365 366 struct sljit_label *label; 367 struct sljit_jump *jump; 368 struct sljit_const *const_; 369 370 CHECK_ERROR_PTR(); 371 check_sljit_generate_code(compiler); 372 reverse_buf(compiler); 373 374 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins)); 375 PTR_FAIL_WITH_EXEC_IF(code); 376 buf = compiler->buf; 377 378 code_ptr = code; 379 word_count = 0; 380 label = compiler->labels; 381 jump = compiler->jumps; 382 const_ = compiler->consts; 383 do { 384 buf_ptr = (sljit_ins*)buf->memory; 385 buf_end = buf_ptr + (buf->used_size >> 2); 386 do { 387 *code_ptr = *buf_ptr++; 388 SLJIT_ASSERT(!label || label->size >= word_count); 389 SLJIT_ASSERT(!jump || jump->addr >= word_count); 390 SLJIT_ASSERT(!const_ || const_->addr >= word_count); 391 /* These structures are ordered by their address. */ 392 if (label && label->size == word_count) { 393 /* Just recording the address. */ 394 label->addr = (sljit_uw)code_ptr; 395 label->size = code_ptr - code; 396 label = label->next; 397 } 398 if (jump && jump->addr == word_count) { 399 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 400 jump->addr = (sljit_uw)(code_ptr - 3); 401 #else 402 jump->addr = (sljit_uw)(code_ptr - 7); 403 #endif 404 code_ptr = detect_jump_type(jump, code_ptr, code); 405 jump = jump->next; 406 } 407 if (const_ && const_->addr == word_count) { 408 /* Just recording the address. */ 409 const_->addr = (sljit_uw)code_ptr; 410 const_ = const_->next; 411 } 412 code_ptr ++; 413 word_count ++; 414 } while (buf_ptr < buf_end); 415 416 buf = buf->next; 417 } while (buf); 418 419 if (label && label->size == word_count) { 420 label->addr = (sljit_uw)code_ptr; 421 label->size = code_ptr - code; 422 label = label->next; 423 } 424 425 SLJIT_ASSERT(!label); 426 SLJIT_ASSERT(!jump); 427 SLJIT_ASSERT(!const_); 428 SLJIT_ASSERT(code_ptr - code <= (sljit_sw)compiler->size); 429 430 jump = compiler->jumps; 431 while (jump) { 432 do { 433 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target; 434 buf_ptr = (sljit_ins*)jump->addr; 435 436 if (jump->flags & PATCH_B) { 437 addr = (sljit_sw)(addr - (jump->addr + sizeof(sljit_ins))) >> 2; 438 SLJIT_ASSERT((sljit_sw)addr <= SIMM_MAX && (sljit_sw)addr >= SIMM_MIN); 439 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | (addr & 0xffff); 440 break; 441 } 442 if (jump->flags & PATCH_J) { 443 SLJIT_ASSERT((addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)); 444 buf_ptr[0] |= (addr >> 2) & 0x03ffffff; 445 break; 446 } 447 448 /* Set the fields of immediate loads. */ 449 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 450 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff); 451 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff); 452 #else 453 if (jump->flags & PATCH_ABS32) { 454 SLJIT_ASSERT(addr <= 0x7fffffff); 455 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff); 456 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff); 457 } 458 else if (jump->flags & PATCH_ABS48) { 459 SLJIT_ASSERT(addr <= 0x7fffffffffffl); 460 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 32) & 0xffff); 461 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 16) & 0xffff); 462 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | (addr & 0xffff); 463 } 464 else { 465 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff); 466 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff); 467 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff); 468 buf_ptr[5] = (buf_ptr[5] & 0xffff0000) | (addr & 0xffff); 469 } 470 #endif 471 } while (0); 472 jump = jump->next; 473 } 474 475 compiler->error = SLJIT_ERR_COMPILED; 476 compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins); 477 #ifndef __GNUC__ 478 SLJIT_CACHE_FLUSH(code, code_ptr); 479 #else 480 /* GCC workaround for invalid code generation with -O2. */ 481 sljit_cache_flush(code, code_ptr); 482 #endif 483 return code; 484 } 485 486 /* --------------------------------------------------------------------- */ 487 /* Entry, exit */ 488 /* --------------------------------------------------------------------- */ 489 490 /* Creates an index in data_transfer_insts array. */ 491 #define LOAD_DATA 0x01 492 #define WORD_DATA 0x00 493 #define BYTE_DATA 0x02 494 #define HALF_DATA 0x04 495 #define INT_DATA 0x06 496 #define SIGNED_DATA 0x08 497 /* Separates integer and floating point registers */ 498 #define GPR_REG 0x0f 499 #define DOUBLE_DATA 0x10 500 501 #define MEM_MASK 0x1f 502 503 #define WRITE_BACK 0x00020 504 #define ARG_TEST 0x00040 505 #define ALT_KEEP_CACHE 0x00080 506 #define CUMULATIVE_OP 0x00100 507 #define LOGICAL_OP 0x00200 508 #define IMM_OP 0x00400 509 #define SRC2_IMM 0x00800 510 511 #define UNUSED_DEST 0x01000 512 #define REG_DEST 0x02000 513 #define REG1_SOURCE 0x04000 514 #define REG2_SOURCE 0x08000 515 #define SLOW_SRC1 0x10000 516 #define SLOW_SRC2 0x20000 517 #define SLOW_DEST 0x40000 518 519 /* Only these flags are set. UNUSED_DEST is not set when no flags should be set. */ 520 #define CHECK_FLAGS(list) \ 521 (!(flags & UNUSED_DEST) || (op & GET_FLAGS(~(list)))) 522 523 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 524 #define STACK_STORE SW 525 #define STACK_LOAD LW 526 #else 527 #define STACK_STORE SD 528 #define STACK_LOAD LD 529 #endif 530 531 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 532 #include "sljitNativeMIPS_32.c" 533 #else 534 #include "sljitNativeMIPS_64.c" 535 #endif 536 537 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_enter(struct sljit_compiler *compiler, sljit_si args, sljit_si scratches, sljit_si saveds, sljit_si local_size) 538 { 539 sljit_ins base; 540 541 CHECK_ERROR(); 542 check_sljit_emit_enter(compiler, args, scratches, saveds, local_size); 543 544 compiler->scratches = scratches; 545 compiler->saveds = saveds; 546 #if (defined SLJIT_DEBUG && SLJIT_DEBUG) 547 compiler->logical_local_size = local_size; 548 #endif 549 550 local_size += (saveds + 1 + 4) * sizeof(sljit_sw); 551 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 552 local_size = (local_size + 15) & ~0xf; 553 #else 554 local_size = (local_size + 31) & ~0x1f; 555 #endif 556 compiler->local_size = local_size; 557 558 if (local_size <= SIMM_MAX) { 559 /* Frequent case. */ 560 FAIL_IF(push_inst(compiler, ADDIU_W | S(SLJIT_LOCALS_REG) | T(SLJIT_LOCALS_REG) | IMM(-local_size), DR(SLJIT_LOCALS_REG))); 561 base = S(SLJIT_LOCALS_REG); 562 } 563 else { 564 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size)); 565 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_LOCALS_REG) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); 566 FAIL_IF(push_inst(compiler, SUBU_W | S(SLJIT_LOCALS_REG) | T(TMP_REG1) | D(SLJIT_LOCALS_REG), DR(SLJIT_LOCALS_REG))); 567 base = S(TMP_REG2); 568 local_size = 0; 569 } 570 571 FAIL_IF(push_inst(compiler, STACK_STORE | base | TA(RETURN_ADDR_REG) | IMM(local_size - 1 * (sljit_si)sizeof(sljit_sw)), MOVABLE_INS)); 572 if (saveds >= 1) 573 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_REG1) | IMM(local_size - 2 * (sljit_si)sizeof(sljit_sw)), MOVABLE_INS)); 574 if (saveds >= 2) 575 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_REG2) | IMM(local_size - 3 * (sljit_si)sizeof(sljit_sw)), MOVABLE_INS)); 576 if (saveds >= 3) 577 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_REG3) | IMM(local_size - 4 * (sljit_si)sizeof(sljit_sw)), MOVABLE_INS)); 578 if (saveds >= 4) 579 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_EREG1) | IMM(local_size - 5 * (sljit_si)sizeof(sljit_sw)), MOVABLE_INS)); 580 if (saveds >= 5) 581 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_EREG2) | IMM(local_size - 6 * (sljit_si)sizeof(sljit_sw)), MOVABLE_INS)); 582 583 if (args >= 1) 584 FAIL_IF(push_inst(compiler, ADDU_W | SA(4) | TA(0) | D(SLJIT_SAVED_REG1), DR(SLJIT_SAVED_REG1))); 585 if (args >= 2) 586 FAIL_IF(push_inst(compiler, ADDU_W | SA(5) | TA(0) | D(SLJIT_SAVED_REG2), DR(SLJIT_SAVED_REG2))); 587 if (args >= 3) 588 FAIL_IF(push_inst(compiler, ADDU_W | SA(6) | TA(0) | D(SLJIT_SAVED_REG3), DR(SLJIT_SAVED_REG3))); 589 590 return SLJIT_SUCCESS; 591 } 592 593 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, sljit_si args, sljit_si scratches, sljit_si saveds, sljit_si local_size) 594 { 595 CHECK_ERROR_VOID(); 596 check_sljit_set_context(compiler, args, scratches, saveds, local_size); 597 598 compiler->scratches = scratches; 599 compiler->saveds = saveds; 600 #if (defined SLJIT_DEBUG && SLJIT_DEBUG) 601 compiler->logical_local_size = local_size; 602 #endif 603 604 local_size += (saveds + 1 + 4) * sizeof(sljit_sw); 605 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 606 compiler->local_size = (local_size + 15) & ~0xf; 607 #else 608 compiler->local_size = (local_size + 31) & ~0x1f; 609 #endif 610 } 611 612 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_return(struct sljit_compiler *compiler, sljit_si op, sljit_si src, sljit_sw srcw) 613 { 614 sljit_si local_size; 615 sljit_ins base; 616 617 CHECK_ERROR(); 618 check_sljit_emit_return(compiler, op, src, srcw); 619 620 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw)); 621 622 local_size = compiler->local_size; 623 if (local_size <= SIMM_MAX) 624 base = S(SLJIT_LOCALS_REG); 625 else { 626 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size)); 627 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_LOCALS_REG) | T(TMP_REG1) | D(TMP_REG1), DR(TMP_REG1))); 628 base = S(TMP_REG1); 629 local_size = 0; 630 } 631 632 FAIL_IF(push_inst(compiler, STACK_LOAD | base | TA(RETURN_ADDR_REG) | IMM(local_size - 1 * (sljit_si)sizeof(sljit_sw)), RETURN_ADDR_REG)); 633 if (compiler->saveds >= 5) 634 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_EREG2) | IMM(local_size - 6 * (sljit_si)sizeof(sljit_sw)), DR(SLJIT_SAVED_EREG2))); 635 if (compiler->saveds >= 4) 636 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_EREG1) | IMM(local_size - 5 * (sljit_si)sizeof(sljit_sw)), DR(SLJIT_SAVED_EREG1))); 637 if (compiler->saveds >= 3) 638 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_REG3) | IMM(local_size - 4 * (sljit_si)sizeof(sljit_sw)), DR(SLJIT_SAVED_REG3))); 639 if (compiler->saveds >= 2) 640 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_REG2) | IMM(local_size - 3 * (sljit_si)sizeof(sljit_sw)), DR(SLJIT_SAVED_REG2))); 641 if (compiler->saveds >= 1) 642 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_REG1) | IMM(local_size - 2 * (sljit_si)sizeof(sljit_sw)), DR(SLJIT_SAVED_REG1))); 643 644 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS)); 645 if (compiler->local_size <= SIMM_MAX) 646 return push_inst(compiler, ADDIU_W | S(SLJIT_LOCALS_REG) | T(SLJIT_LOCALS_REG) | IMM(compiler->local_size), UNMOVABLE_INS); 647 else 648 return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(SLJIT_LOCALS_REG), UNMOVABLE_INS); 649 } 650 651 #undef STACK_STORE 652 #undef STACK_LOAD 653 654 /* --------------------------------------------------------------------- */ 655 /* Operators */ 656 /* --------------------------------------------------------------------- */ 657 658 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 659 #define ARCH_32_64(a, b) a 660 #else 661 #define ARCH_32_64(a, b) b 662 #endif 663 664 static SLJIT_CONST sljit_ins data_transfer_insts[16 + 4] = { 665 /* u w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */), 666 /* u w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */), 667 /* u b s */ HI(40) /* sb */, 668 /* u b l */ HI(36) /* lbu */, 669 /* u h s */ HI(41) /* sh */, 670 /* u h l */ HI(37) /* lhu */, 671 /* u i s */ HI(43) /* sw */, 672 /* u i l */ ARCH_32_64(HI(35) /* lw */, HI(39) /* lwu */), 673 674 /* s w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */), 675 /* s w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */), 676 /* s b s */ HI(40) /* sb */, 677 /* s b l */ HI(32) /* lb */, 678 /* s h s */ HI(41) /* sh */, 679 /* s h l */ HI(33) /* lh */, 680 /* s i s */ HI(43) /* sw */, 681 /* s i l */ HI(35) /* lw */, 682 683 /* d s */ HI(61) /* sdc1 */, 684 /* d l */ HI(53) /* ldc1 */, 685 /* s s */ HI(57) /* swc1 */, 686 /* s l */ HI(49) /* lwc1 */, 687 }; 688 689 #undef ARCH_32_64 690 691 /* reg_ar is an absoulute register! */ 692 693 /* Can perform an operation using at most 1 instruction. */ 694 static sljit_si getput_arg_fast(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg_ar, sljit_si arg, sljit_sw argw) 695 { 696 SLJIT_ASSERT(arg & SLJIT_MEM); 697 698 if ((!(flags & WRITE_BACK) || !(arg & REG_MASK)) && !(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN) { 699 /* Works for both absoulte and relative addresses. */ 700 if (SLJIT_UNLIKELY(flags & ARG_TEST)) 701 return 1; 702 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(arg & REG_MASK) 703 | TA(reg_ar) | IMM(argw), ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? reg_ar : MOVABLE_INS)); 704 return -1; 705 } 706 return 0; 707 } 708 709 /* See getput_arg below. 710 Note: can_cache is called only for binary operators. Those 711 operators always uses word arguments without write back. */ 712 static sljit_si can_cache(sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw) 713 { 714 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM)); 715 716 /* Simple operation except for updates. */ 717 if (arg & OFFS_REG_MASK) { 718 argw &= 0x3; 719 next_argw &= 0x3; 720 if (argw && argw == next_argw && (arg == next_arg || (arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK))) 721 return 1; 722 return 0; 723 } 724 725 if (arg == next_arg) { 726 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN)) 727 return 1; 728 return 0; 729 } 730 731 return 0; 732 } 733 734 /* Emit the necessary instructions. See can_cache above. */ 735 static sljit_si getput_arg(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg_ar, sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw) 736 { 737 sljit_si tmp_ar, base, delay_slot; 738 739 SLJIT_ASSERT(arg & SLJIT_MEM); 740 if (!(next_arg & SLJIT_MEM)) { 741 next_arg = 0; 742 next_argw = 0; 743 } 744 745 if ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) { 746 tmp_ar = reg_ar; 747 delay_slot = reg_ar; 748 } else { 749 tmp_ar = DR(TMP_REG1); 750 delay_slot = MOVABLE_INS; 751 } 752 base = arg & REG_MASK; 753 754 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) { 755 argw &= 0x3; 756 if ((flags & WRITE_BACK) && reg_ar == DR(base)) { 757 SLJIT_ASSERT(!(flags & LOAD_DATA) && DR(TMP_REG1) != reg_ar); 758 FAIL_IF(push_inst(compiler, ADDU_W | SA(reg_ar) | TA(0) | D(TMP_REG1), DR(TMP_REG1))); 759 reg_ar = DR(TMP_REG1); 760 } 761 762 /* Using the cache. */ 763 if (argw == compiler->cache_argw) { 764 if (!(flags & WRITE_BACK)) { 765 if (arg == compiler->cache_arg) 766 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 767 if ((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) { 768 if (arg == next_arg && argw == (next_argw & 0x3)) { 769 compiler->cache_arg = arg; 770 compiler->cache_argw = argw; 771 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(TMP_REG3), DR(TMP_REG3))); 772 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 773 } 774 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | DA(tmp_ar), tmp_ar)); 775 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 776 } 777 } 778 else { 779 if ((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) { 780 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); 781 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), delay_slot); 782 } 783 } 784 } 785 786 if (SLJIT_UNLIKELY(argw)) { 787 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK); 788 compiler->cache_argw = argw; 789 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(arg)) | D(TMP_REG3) | SH_IMM(argw), DR(TMP_REG3))); 790 } 791 792 if (!(flags & WRITE_BACK)) { 793 if (arg == next_arg && argw == (next_argw & 0x3)) { 794 compiler->cache_arg = arg; 795 compiler->cache_argw = argw; 796 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | D(TMP_REG3), DR(TMP_REG3))); 797 tmp_ar = DR(TMP_REG3); 798 } 799 else 800 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | DA(tmp_ar), tmp_ar)); 801 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 802 } 803 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | D(base), DR(base))); 804 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), delay_slot); 805 } 806 807 if (SLJIT_UNLIKELY(flags & WRITE_BACK) && base) { 808 /* Update only applies if a base register exists. */ 809 if (reg_ar == DR(base)) { 810 SLJIT_ASSERT(!(flags & LOAD_DATA) && DR(TMP_REG1) != reg_ar); 811 if (argw <= SIMM_MAX && argw >= SIMM_MIN) { 812 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar) | IMM(argw), MOVABLE_INS)); 813 if (argw) 814 return push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base)); 815 return SLJIT_SUCCESS; 816 } 817 FAIL_IF(push_inst(compiler, ADDU_W | SA(reg_ar) | TA(0) | D(TMP_REG1), DR(TMP_REG1))); 818 reg_ar = DR(TMP_REG1); 819 } 820 821 if (argw <= SIMM_MAX && argw >= SIMM_MIN) { 822 if (argw) 823 FAIL_IF(push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base))); 824 } 825 else { 826 if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { 827 if (argw != compiler->cache_argw) { 828 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 829 compiler->cache_argw = argw; 830 } 831 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); 832 } 833 else { 834 compiler->cache_arg = SLJIT_MEM; 835 compiler->cache_argw = argw; 836 FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); 837 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); 838 } 839 } 840 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), delay_slot); 841 } 842 843 if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { 844 if (argw != compiler->cache_argw) { 845 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 846 compiler->cache_argw = argw; 847 } 848 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 849 } 850 851 if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { 852 if (argw != compiler->cache_argw) 853 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 854 } 855 else { 856 compiler->cache_arg = SLJIT_MEM; 857 FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); 858 } 859 compiler->cache_argw = argw; 860 861 if (!base) 862 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 863 864 if (arg == next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN) { 865 compiler->cache_arg = arg; 866 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | D(TMP_REG3), DR(TMP_REG3))); 867 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 868 } 869 870 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | DA(tmp_ar), tmp_ar)); 871 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 872 } 873 874 static SLJIT_INLINE sljit_si emit_op_mem(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg_ar, sljit_si arg, sljit_sw argw) 875 { 876 if (getput_arg_fast(compiler, flags, reg_ar, arg, argw)) 877 return compiler->error; 878 compiler->cache_arg = 0; 879 compiler->cache_argw = 0; 880 return getput_arg(compiler, flags, reg_ar, arg, argw, 0, 0); 881 } 882 883 static 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) 884 { 885 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w)) 886 return compiler->error; 887 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w); 888 } 889 890 static sljit_si emit_op(struct sljit_compiler *compiler, sljit_si op, sljit_si flags, 891 sljit_si dst, sljit_sw dstw, 892 sljit_si src1, sljit_sw src1w, 893 sljit_si src2, sljit_sw src2w) 894 { 895 /* arg1 goes to TMP_REG1 or src reg 896 arg2 goes to TMP_REG2, imm or src reg 897 TMP_REG3 can be used for caching 898 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */ 899 sljit_si dst_r = TMP_REG2; 900 sljit_si src1_r; 901 sljit_sw src2_r = 0; 902 sljit_si sugg_src2_r = TMP_REG2; 903 904 if (!(flags & ALT_KEEP_CACHE)) { 905 compiler->cache_arg = 0; 906 compiler->cache_argw = 0; 907 } 908 909 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) { 910 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM)) 911 return SLJIT_SUCCESS; 912 if (GET_FLAGS(op)) 913 flags |= UNUSED_DEST; 914 } 915 else if (FAST_IS_REG(dst)) { 916 dst_r = dst; 917 flags |= REG_DEST; 918 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) 919 sugg_src2_r = dst_r; 920 } 921 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, DR(TMP_REG1), dst, dstw)) 922 flags |= SLOW_DEST; 923 924 if (flags & IMM_OP) { 925 if ((src2 & SLJIT_IMM) && src2w) { 926 if ((!(flags & LOGICAL_OP) && (src2w <= SIMM_MAX && src2w >= SIMM_MIN)) 927 || ((flags & LOGICAL_OP) && !(src2w & ~UIMM_MAX))) { 928 flags |= SRC2_IMM; 929 src2_r = src2w; 930 } 931 } 932 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) { 933 if ((!(flags & LOGICAL_OP) && (src1w <= SIMM_MAX && src1w >= SIMM_MIN)) 934 || ((flags & LOGICAL_OP) && !(src1w & ~UIMM_MAX))) { 935 flags |= SRC2_IMM; 936 src2_r = src1w; 937 938 /* And swap arguments. */ 939 src1 = src2; 940 src1w = src2w; 941 src2 = SLJIT_IMM; 942 /* src2w = src2_r unneeded. */ 943 } 944 } 945 } 946 947 /* Source 1. */ 948 if (FAST_IS_REG(src1)) { 949 src1_r = src1; 950 flags |= REG1_SOURCE; 951 } 952 else if (src1 & SLJIT_IMM) { 953 if (src1w) { 954 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); 955 src1_r = TMP_REG1; 956 } 957 else 958 src1_r = 0; 959 } 960 else { 961 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w)) 962 FAIL_IF(compiler->error); 963 else 964 flags |= SLOW_SRC1; 965 src1_r = TMP_REG1; 966 } 967 968 /* Source 2. */ 969 if (FAST_IS_REG(src2)) { 970 src2_r = src2; 971 flags |= REG2_SOURCE; 972 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) 973 dst_r = src2_r; 974 } 975 else if (src2 & SLJIT_IMM) { 976 if (!(flags & SRC2_IMM)) { 977 if (src2w) { 978 FAIL_IF(load_immediate(compiler, DR(sugg_src2_r), src2w)); 979 src2_r = sugg_src2_r; 980 } 981 else { 982 src2_r = 0; 983 if ((op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) && (dst & SLJIT_MEM)) 984 dst_r = 0; 985 } 986 } 987 } 988 else { 989 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w)) 990 FAIL_IF(compiler->error); 991 else 992 flags |= SLOW_SRC2; 993 src2_r = sugg_src2_r; 994 } 995 996 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 997 SLJIT_ASSERT(src2_r == TMP_REG2); 998 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 999 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, src1, src1w)); 1000 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw)); 1001 } 1002 else { 1003 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, src2, src2w)); 1004 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, dst, dstw)); 1005 } 1006 } 1007 else if (flags & SLOW_SRC1) 1008 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw)); 1009 else if (flags & SLOW_SRC2) 1010 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w, dst, dstw)); 1011 1012 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r)); 1013 1014 if (dst & SLJIT_MEM) { 1015 if (!(flags & SLOW_DEST)) { 1016 getput_arg_fast(compiler, flags, DR(dst_r), dst, dstw); 1017 return compiler->error; 1018 } 1019 return getput_arg(compiler, flags, DR(dst_r), dst, dstw, 0, 0); 1020 } 1021 1022 return SLJIT_SUCCESS; 1023 } 1024 1025 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op0(struct sljit_compiler *compiler, sljit_si op) 1026 { 1027 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1028 sljit_si int_op = op & SLJIT_INT_OP; 1029 #endif 1030 1031 CHECK_ERROR(); 1032 check_sljit_emit_op0(compiler, op); 1033 1034 op = GET_OPCODE(op); 1035 switch (op) { 1036 case SLJIT_BREAKPOINT: 1037 return push_inst(compiler, BREAK, UNMOVABLE_INS); 1038 case SLJIT_NOP: 1039 return push_inst(compiler, NOP, UNMOVABLE_INS); 1040 case SLJIT_UMUL: 1041 case SLJIT_SMUL: 1042 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1043 FAIL_IF(push_inst(compiler, (op == SLJIT_UMUL ? DMULTU : DMULT) | S(SLJIT_SCRATCH_REG1) | T(SLJIT_SCRATCH_REG2), MOVABLE_INS)); 1044 #else 1045 FAIL_IF(push_inst(compiler, (op == SLJIT_UMUL ? MULTU : MULT) | S(SLJIT_SCRATCH_REG1) | T(SLJIT_SCRATCH_REG2), MOVABLE_INS)); 1046 #endif 1047 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_SCRATCH_REG1), DR(SLJIT_SCRATCH_REG1))); 1048 return push_inst(compiler, MFHI | D(SLJIT_SCRATCH_REG2), DR(SLJIT_SCRATCH_REG2)); 1049 case SLJIT_UDIV: 1050 case SLJIT_SDIV: 1051 #if !(defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) 1052 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1053 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1054 #endif 1055 1056 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1057 if (int_op) 1058 FAIL_IF(push_inst(compiler, (op == SLJIT_UDIV ? DIVU : DIV) | S(SLJIT_SCRATCH_REG1) | T(SLJIT_SCRATCH_REG2), MOVABLE_INS)); 1059 else 1060 FAIL_IF(push_inst(compiler, (op == SLJIT_UDIV ? DDIVU : DDIV) | S(SLJIT_SCRATCH_REG1) | T(SLJIT_SCRATCH_REG2), MOVABLE_INS)); 1061 #else 1062 FAIL_IF(push_inst(compiler, (op == SLJIT_UDIV ? DIVU : DIV) | S(SLJIT_SCRATCH_REG1) | T(SLJIT_SCRATCH_REG2), MOVABLE_INS)); 1063 #endif 1064 1065 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_SCRATCH_REG1), DR(SLJIT_SCRATCH_REG1))); 1066 return push_inst(compiler, MFHI | D(SLJIT_SCRATCH_REG2), DR(SLJIT_SCRATCH_REG2)); 1067 } 1068 1069 return SLJIT_SUCCESS; 1070 } 1071 1072 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op1(struct sljit_compiler *compiler, sljit_si op, 1073 sljit_si dst, sljit_sw dstw, 1074 sljit_si src, sljit_sw srcw) 1075 { 1076 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1077 # define flags 0 1078 #else 1079 sljit_si flags = 0; 1080 #endif 1081 1082 CHECK_ERROR(); 1083 check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw); 1084 ADJUST_LOCAL_OFFSET(dst, dstw); 1085 ADJUST_LOCAL_OFFSET(src, srcw); 1086 1087 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1088 if ((op & SLJIT_INT_OP) && GET_OPCODE(op) >= SLJIT_NOT) { 1089 flags |= INT_DATA | SIGNED_DATA; 1090 if (src & SLJIT_IMM) 1091 srcw = (sljit_si)srcw; 1092 } 1093 #endif 1094 1095 switch (GET_OPCODE(op)) { 1096 case SLJIT_MOV: 1097 case SLJIT_MOV_P: 1098 return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 1099 1100 case SLJIT_MOV_UI: 1101 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1102 return emit_op(compiler, SLJIT_MOV_UI, INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 1103 #else 1104 return emit_op(compiler, SLJIT_MOV_UI, INT_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ui)srcw : srcw); 1105 #endif 1106 1107 case SLJIT_MOV_SI: 1108 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1109 return emit_op(compiler, SLJIT_MOV_SI, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 1110 #else 1111 return emit_op(compiler, SLJIT_MOV_SI, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_si)srcw : srcw); 1112 #endif 1113 1114 case SLJIT_MOV_UB: 1115 return emit_op(compiler, SLJIT_MOV_UB, BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw); 1116 1117 case SLJIT_MOV_SB: 1118 return emit_op(compiler, SLJIT_MOV_SB, BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sb)srcw : srcw); 1119 1120 case SLJIT_MOV_UH: 1121 return emit_op(compiler, SLJIT_MOV_UH, HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw); 1122 1123 case SLJIT_MOV_SH: 1124 return emit_op(compiler, SLJIT_MOV_SH, HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sh)srcw : srcw); 1125 1126 case SLJIT_MOVU: 1127 case SLJIT_MOVU_P: 1128 return emit_op(compiler, SLJIT_MOV, WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 1129 1130 case SLJIT_MOVU_UI: 1131 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1132 return emit_op(compiler, SLJIT_MOV_UI, INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 1133 #else 1134 return emit_op(compiler, SLJIT_MOV_UI, INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ui)srcw : srcw); 1135 #endif 1136 1137 case SLJIT_MOVU_SI: 1138 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1139 return emit_op(compiler, SLJIT_MOV_SI, INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 1140 #else 1141 return emit_op(compiler, SLJIT_MOV_SI, INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_si)srcw : srcw); 1142 #endif 1143 1144 case SLJIT_MOVU_UB: 1145 return emit_op(compiler, SLJIT_MOV_UB, BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw); 1146 1147 case SLJIT_MOVU_SB: 1148 return emit_op(compiler, SLJIT_MOV_SB, BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sb)srcw : srcw); 1149 1150 case SLJIT_MOVU_UH: 1151 return emit_op(compiler, SLJIT_MOV_UH, HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw); 1152 1153 case SLJIT_MOVU_SH: 1154 return emit_op(compiler, SLJIT_MOV_SH, HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sh)srcw : srcw); 1155 1156 case SLJIT_NOT: 1157 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw); 1158 1159 case SLJIT_NEG: 1160 return emit_op(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw); 1161 1162 case SLJIT_CLZ: 1163 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw); 1164 } 1165 1166 return SLJIT_SUCCESS; 1167 1168 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1169 # undef flags 1170 #endif 1171 } 1172 1173 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op2(struct sljit_compiler *compiler, sljit_si op, 1174 sljit_si dst, sljit_sw dstw, 1175 sljit_si src1, sljit_sw src1w, 1176 sljit_si src2, sljit_sw src2w) 1177 { 1178 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1179 # define flags 0 1180 #else 1181 sljit_si flags = 0; 1182 #endif 1183 1184 CHECK_ERROR(); 1185 check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w); 1186 ADJUST_LOCAL_OFFSET(dst, dstw); 1187 ADJUST_LOCAL_OFFSET(src1, src1w); 1188 ADJUST_LOCAL_OFFSET(src2, src2w); 1189 1190 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1191 if (op & SLJIT_INT_OP) { 1192 flags |= INT_DATA | SIGNED_DATA; 1193 if (src1 & SLJIT_IMM) 1194 src1w = (sljit_si)src1w; 1195 if (src2 & SLJIT_IMM) 1196 src2w = (sljit_si)src2w; 1197 } 1198 #endif 1199 1200 switch (GET_OPCODE(op)) { 1201 case SLJIT_ADD: 1202 case SLJIT_ADDC: 1203 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1204 1205 case SLJIT_SUB: 1206 case SLJIT_SUBC: 1207 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1208 1209 case SLJIT_MUL: 1210 return emit_op(compiler, op, flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w); 1211 1212 case SLJIT_AND: 1213 case SLJIT_OR: 1214 case SLJIT_XOR: 1215 return emit_op(compiler, op, flags | CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1216 1217 case SLJIT_SHL: 1218 case SLJIT_LSHR: 1219 case SLJIT_ASHR: 1220 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1221 if (src2 & SLJIT_IMM) 1222 src2w &= 0x1f; 1223 #else 1224 if (src2 & SLJIT_IMM) { 1225 if (op & SLJIT_INT_OP) 1226 src2w &= 0x1f; 1227 else 1228 src2w &= 0x3f; 1229 } 1230 #endif 1231 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1232 } 1233 1234 return SLJIT_SUCCESS; 1235 1236 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1237 # undef flags 1238 #endif 1239 } 1240 1241 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_register_index(sljit_si reg) 1242 { 1243 check_sljit_get_register_index(reg); 1244 return reg_map[reg]; 1245 } 1246 1247 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_float_register_index(sljit_si reg) 1248 { 1249 check_sljit_get_float_register_index(reg); 1250 return reg << 1; 1251 } 1252 1253 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_custom(struct sljit_compiler *compiler, 1254 void *instruction, sljit_si size) 1255 { 1256 CHECK_ERROR(); 1257 check_sljit_emit_op_custom(compiler, instruction, size); 1258 SLJIT_ASSERT(size == 4); 1259 1260 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS); 1261 } 1262 1263 /* --------------------------------------------------------------------- */ 1264 /* Floating point operators */ 1265 /* --------------------------------------------------------------------- */ 1266 1267 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_is_fpu_available(void) 1268 { 1269 #ifdef SLJIT_IS_FPU_AVAILABLE 1270 return SLJIT_IS_FPU_AVAILABLE; 1271 #elif defined(__GNUC__) 1272 sljit_sw fir; 1273 asm ("cfc1 %0, $0" : "=r"(fir)); 1274 return (fir >> 22) & 0x1; 1275 #else 1276 #error "FIR check is not implemented for this architecture" 1277 #endif 1278 } 1279 1280 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_SINGLE_OP) >> 7)) 1281 #define FMT(op) (((op & SLJIT_SINGLE_OP) ^ SLJIT_SINGLE_OP) << (21 - 8)) 1282 1283 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop1(struct sljit_compiler *compiler, sljit_si op, 1284 sljit_si dst, sljit_sw dstw, 1285 sljit_si src, sljit_sw srcw) 1286 { 1287 sljit_si dst_fr; 1288 1289 CHECK_ERROR(); 1290 check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw); 1291 SLJIT_COMPILE_ASSERT((SLJIT_SINGLE_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error); 1292 1293 compiler->cache_arg = 0; 1294 compiler->cache_argw = 0; 1295 1296 if (GET_OPCODE(op) == SLJIT_CMPD) { 1297 if (dst & SLJIT_MEM) { 1298 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, dst, dstw, src, srcw)); 1299 dst = TMP_FREG1; 1300 } 1301 else 1302 dst <<= 1; 1303 1304 if (src & SLJIT_MEM) { 1305 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src, srcw, 0, 0)); 1306 src = TMP_FREG2; 1307 } 1308 else 1309 src <<= 1; 1310 1311 /* src and dst are swapped. */ 1312 if (op & SLJIT_SET_E) { 1313 FAIL_IF(push_inst(compiler, C_UEQ_fmt | FMT(op) | FT(src) | FS(dst), UNMOVABLE_INS)); 1314 FAIL_IF(push_inst(compiler, CFC1 | TA(EQUAL_FLAG) | DA(FCSR_REG), EQUAL_FLAG)); 1315 FAIL_IF(push_inst(compiler, SRL | TA(EQUAL_FLAG) | DA(EQUAL_FLAG) | SH_IMM(23), EQUAL_FLAG)); 1316 FAIL_IF(push_inst(compiler, ANDI | SA(EQUAL_FLAG) | TA(EQUAL_FLAG) | IMM(1), EQUAL_FLAG)); 1317 } 1318 if (op & SLJIT_SET_S) { 1319 /* Mixing the instructions for the two checks. */ 1320 FAIL_IF(push_inst(compiler, C_ULT_fmt | FMT(op) | FT(src) | FS(dst), UNMOVABLE_INS)); 1321 FAIL_IF(push_inst(compiler, CFC1 | TA(ULESS_FLAG) | DA(FCSR_REG), ULESS_FLAG)); 1322 FAIL_IF(push_inst(compiler, C_ULT_fmt | FMT(op) | FT(dst) | FS(src), UNMOVABLE_INS)); 1323 FAIL_IF(push_inst(compiler, SRL | TA(ULESS_FLAG) | DA(ULESS_FLAG) | SH_IMM(23), ULESS_FLAG)); 1324 FAIL_IF(push_inst(compiler, ANDI | SA(ULESS_FLAG) | TA(ULESS_FLAG) | IMM(1), ULESS_FLAG)); 1325 FAIL_IF(push_inst(compiler, CFC1 | TA(UGREATER_FLAG) | DA(FCSR_REG), UGREATER_FLAG)); 1326 FAIL_IF(push_inst(compiler, SRL | TA(UGREATER_FLAG) | DA(UGREATER_FLAG) | SH_IMM(23), UGREATER_FLAG)); 1327 FAIL_IF(push_inst(compiler, ANDI | SA(UGREATER_FLAG) | TA(UGREATER_FLAG) | IMM(1), UGREATER_FLAG)); 1328 } 1329 return push_inst(compiler, C_UN_fmt | FMT(op) | FT(src) | FS(dst), FCSR_FCC); 1330 } 1331 1332 dst_fr = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1; 1333 1334 if (src & SLJIT_MEM) { 1335 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_fr, src, srcw, dst, dstw)); 1336 src = dst_fr; 1337 } 1338 else 1339 src <<= 1; 1340 1341 switch (GET_OPCODE(op)) { 1342 case SLJIT_MOVD: 1343 if (src != dst_fr && dst_fr != TMP_FREG1) 1344 FAIL_IF(push_inst(compiler, MOV_fmt | FMT(op) | FS(src) | FD(dst_fr), MOVABLE_INS)); 1345 break; 1346 case SLJIT_NEGD: 1347 FAIL_IF(push_inst(compiler, NEG_fmt | FMT(op) | FS(src) | FD(dst_fr), MOVABLE_INS)); 1348 break; 1349 case SLJIT_ABSD: 1350 FAIL_IF(push_inst(compiler, ABS_fmt | FMT(op) | FS(src) | FD(dst_fr), MOVABLE_INS)); 1351 break; 1352 } 1353 1354 if (dst_fr == TMP_FREG1) { 1355 if (GET_OPCODE(op) == SLJIT_MOVD) 1356 dst_fr = src; 1357 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), dst_fr, dst, dstw, 0, 0)); 1358 } 1359 1360 return SLJIT_SUCCESS; 1361 } 1362 1363 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop2(struct sljit_compiler *compiler, sljit_si op, 1364 sljit_si dst, sljit_sw dstw, 1365 sljit_si src1, sljit_sw src1w, 1366 sljit_si src2, sljit_sw src2w) 1367 { 1368 sljit_si dst_fr, flags = 0; 1369 1370 CHECK_ERROR(); 1371 check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w); 1372 1373 compiler->cache_arg = 0; 1374 compiler->cache_argw = 0; 1375 1376 dst_fr = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG2; 1377 1378 if (src1 & SLJIT_MEM) { 1379 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) { 1380 FAIL_IF(compiler->error); 1381 src1 = TMP_FREG1; 1382 } else 1383 flags |= SLOW_SRC1; 1384 } 1385 else 1386 src1 <<= 1; 1387 1388 if (src2 & SLJIT_MEM) { 1389 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) { 1390 FAIL_IF(compiler->error); 1391 src2 = TMP_FREG2; 1392 } else 1393 flags |= SLOW_SRC2; 1394 } 1395 else 1396 src2 <<= 1; 1397 1398 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 1399 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 1400 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w)); 1401 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw)); 1402 } 1403 else { 1404 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w)); 1405 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw)); 1406 } 1407 } 1408 else if (flags & SLOW_SRC1) 1409 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw)); 1410 else if (flags & SLOW_SRC2) 1411 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw)); 1412 1413 if (flags & SLOW_SRC1) 1414 src1 = TMP_FREG1; 1415 if (flags & SLOW_SRC2) 1416 src2 = TMP_FREG2; 1417 1418 switch (GET_OPCODE(op)) { 1419 case SLJIT_ADDD: 1420 FAIL_IF(push_inst(compiler, ADD_fmt | FMT(op) | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS)); 1421 break; 1422 1423 case SLJIT_SUBD: 1424 FAIL_IF(push_inst(compiler, SUB_fmt | FMT(op) | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS)); 1425 break; 1426 1427 case SLJIT_MULD: 1428 FAIL_IF(push_inst(compiler, MUL_fmt | FMT(op) | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS)); 1429 break; 1430 1431 case SLJIT_DIVD: 1432 FAIL_IF(push_inst(compiler, DIV_fmt | FMT(op) | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS)); 1433 break; 1434 } 1435 1436 if (dst_fr == TMP_FREG2) 1437 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0)); 1438 1439 return SLJIT_SUCCESS; 1440 } 1441 1442 /* --------------------------------------------------------------------- */ 1443 /* Other instructions */ 1444 /* --------------------------------------------------------------------- */ 1445 1446 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw) 1447 { 1448 CHECK_ERROR(); 1449 check_sljit_emit_fast_enter(compiler, dst, dstw); 1450 ADJUST_LOCAL_OFFSET(dst, dstw); 1451 1452 /* For UNUSED dst. Uncommon, but possible. */ 1453 if (dst == SLJIT_UNUSED) 1454 return SLJIT_SUCCESS; 1455 1456 if (FAST_IS_REG(dst)) 1457 return push_inst(compiler, ADDU_W | SA(RETURN_ADDR_REG) | TA(0) | D(dst), DR(dst)); 1458 1459 /* Memory. */ 1460 return emit_op_mem(compiler, WORD_DATA, RETURN_ADDR_REG, dst, dstw); 1461 } 1462 1463 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_si src, sljit_sw srcw) 1464 { 1465 CHECK_ERROR(); 1466 check_sljit_emit_fast_return(compiler, src, srcw); 1467 ADJUST_LOCAL_OFFSET(src, srcw); 1468 1469 if (FAST_IS_REG(src)) 1470 FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | DA(RETURN_ADDR_REG), RETURN_ADDR_REG)); 1471 else if (src & SLJIT_MEM) 1472 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, RETURN_ADDR_REG, src, srcw)); 1473 else if (src & SLJIT_IMM) 1474 FAIL_IF(load_immediate(compiler, RETURN_ADDR_REG, srcw)); 1475 1476 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1477 return push_inst(compiler, NOP, UNMOVABLE_INS); 1478 } 1479 1480 /* --------------------------------------------------------------------- */ 1481 /* Conditional instructions */ 1482 /* --------------------------------------------------------------------- */ 1483 1484 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler) 1485 { 1486 struct sljit_label *label; 1487 1488 CHECK_ERROR_PTR(); 1489 check_sljit_emit_label(compiler); 1490 1491 if (compiler->last_label && compiler->last_label->size == compiler->size) 1492 return compiler->last_label; 1493 1494 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label)); 1495 PTR_FAIL_IF(!label); 1496 set_label(label, compiler); 1497 compiler->delay_slot = UNMOVABLE_INS; 1498 return label; 1499 } 1500 1501 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1502 #define JUMP_LENGTH 4 1503 #else 1504 #define JUMP_LENGTH 8 1505 #endif 1506 1507 #define BR_Z(src) \ 1508 inst = BEQ | SA(src) | TA(0) | JUMP_LENGTH; \ 1509 flags = IS_BIT26_COND; \ 1510 delay_check = src; 1511 1512 #define BR_NZ(src) \ 1513 inst = BNE | SA(src) | TA(0) | JUMP_LENGTH; \ 1514 flags = IS_BIT26_COND; \ 1515 delay_check = src; 1516 1517 #define BR_T() \ 1518 inst = BC1T | JUMP_LENGTH; \ 1519 flags = IS_BIT16_COND; \ 1520 delay_check = FCSR_FCC; 1521 1522 #define BR_F() \ 1523 inst = BC1F | JUMP_LENGTH; \ 1524 flags = IS_BIT16_COND; \ 1525 delay_check = FCSR_FCC; 1526 1527 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_si type) 1528 { 1529 struct sljit_jump *jump; 1530 sljit_ins inst; 1531 sljit_si flags = 0; 1532 sljit_si delay_check = UNMOVABLE_INS; 1533 1534 CHECK_ERROR_PTR(); 1535 check_sljit_emit_jump(compiler, type); 1536 1537 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1538 PTR_FAIL_IF(!jump); 1539 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1540 type &= 0xff; 1541 1542 switch (type) { 1543 case SLJIT_C_EQUAL: 1544 case SLJIT_C_FLOAT_NOT_EQUAL: 1545 BR_NZ(EQUAL_FLAG); 1546 break; 1547 case SLJIT_C_NOT_EQUAL: 1548 case SLJIT_C_FLOAT_EQUAL: 1549 BR_Z(EQUAL_FLAG); 1550 break; 1551 case SLJIT_C_LESS: 1552 case SLJIT_C_FLOAT_LESS: 1553 BR_Z(ULESS_FLAG); 1554 break; 1555 case SLJIT_C_GREATER_EQUAL: 1556 case SLJIT_C_FLOAT_GREATER_EQUAL: 1557 BR_NZ(ULESS_FLAG); 1558 break; 1559 case SLJIT_C_GREATER: 1560 case SLJIT_C_FLOAT_GREATER: 1561 BR_Z(UGREATER_FLAG); 1562 break; 1563 case SLJIT_C_LESS_EQUAL: 1564 case SLJIT_C_FLOAT_LESS_EQUAL: 1565 BR_NZ(UGREATER_FLAG); 1566 break; 1567 case SLJIT_C_SIG_LESS: 1568 BR_Z(LESS_FLAG); 1569 break; 1570 case SLJIT_C_SIG_GREATER_EQUAL: 1571 BR_NZ(LESS_FLAG); 1572 break; 1573 case SLJIT_C_SIG_GREATER: 1574 BR_Z(GREATER_FLAG); 1575 break; 1576 case SLJIT_C_SIG_LESS_EQUAL: 1577 BR_NZ(GREATER_FLAG); 1578 break; 1579 case SLJIT_C_OVERFLOW: 1580 case SLJIT_C_MUL_OVERFLOW: 1581 BR_Z(OVERFLOW_FLAG); 1582 break; 1583 case SLJIT_C_NOT_OVERFLOW: 1584 case SLJIT_C_MUL_NOT_OVERFLOW: 1585 BR_NZ(OVERFLOW_FLAG); 1586 break; 1587 case SLJIT_C_FLOAT_UNORDERED: 1588 BR_F(); 1589 break; 1590 case SLJIT_C_FLOAT_ORDERED: 1591 BR_T(); 1592 break; 1593 default: 1594 /* Not conditional branch. */ 1595 inst = 0; 1596 break; 1597 } 1598 1599 jump->flags |= flags; 1600 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != delay_check)) 1601 jump->flags |= IS_MOVABLE; 1602 1603 if (inst) 1604 PTR_FAIL_IF(push_inst(compiler, inst, UNMOVABLE_INS)); 1605 1606 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1607 if (type <= SLJIT_JUMP) { 1608 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); 1609 jump->addr = compiler->size; 1610 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1611 } else { 1612 SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG2); 1613 /* Cannot be optimized out if type is >= CALL0. */ 1614 jump->flags |= IS_JAL | (type >= SLJIT_CALL0 ? IS_CALL : 0); 1615 PTR_FAIL_IF(push_inst(compiler, JALR | S(TMP_REG2) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1616 jump->addr = compiler->size; 1617 /* A NOP if type < CALL1. */ 1618 PTR_FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SCRATCH_REG1) | TA(0) | DA(4), UNMOVABLE_INS)); 1619 } 1620 return jump; 1621 } 1622 1623 #define RESOLVE_IMM1() \ 1624 if (src1 & SLJIT_IMM) { \ 1625 if (src1w) { \ 1626 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); \ 1627 src1 = TMP_REG1; \ 1628 } \ 1629 else \ 1630 src1 = 0; \ 1631 } 1632 1633 #define RESOLVE_IMM2() \ 1634 if (src2 & SLJIT_IMM) { \ 1635 if (src2w) { \ 1636 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG2), src2w)); \ 1637 src2 = TMP_REG2; \ 1638 } \ 1639 else \ 1640 src2 = 0; \ 1641 } 1642 1643 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, sljit_si type, 1644 sljit_si src1, sljit_sw src1w, 1645 sljit_si src2, sljit_sw src2w) 1646 { 1647 struct sljit_jump *jump; 1648 sljit_si flags; 1649 sljit_ins inst; 1650 1651 CHECK_ERROR_PTR(); 1652 check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w); 1653 ADJUST_LOCAL_OFFSET(src1, src1w); 1654 ADJUST_LOCAL_OFFSET(src2, src2w); 1655 1656 compiler->cache_arg = 0; 1657 compiler->cache_argw = 0; 1658 flags = ((type & SLJIT_INT_OP) ? INT_DATA : WORD_DATA) | LOAD_DATA; 1659 if (src1 & SLJIT_MEM) { 1660 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG1), src1, src1w, src2, src2w)); 1661 src1 = TMP_REG1; 1662 } 1663 if (src2 & SLJIT_MEM) { 1664 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG2), src2, src2w, 0, 0)); 1665 src2 = TMP_REG2; 1666 } 1667 1668 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1669 PTR_FAIL_IF(!jump); 1670 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1671 type &= 0xff; 1672 1673 if (type <= SLJIT_C_NOT_EQUAL) { 1674 RESOLVE_IMM1(); 1675 RESOLVE_IMM2(); 1676 jump->flags |= IS_BIT26_COND; 1677 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != DR(src1) && compiler->delay_slot != DR(src2))) 1678 jump->flags |= IS_MOVABLE; 1679 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_C_EQUAL ? BNE : BEQ) | S(src1) | T(src2) | JUMP_LENGTH, UNMOVABLE_INS)); 1680 } 1681 else if (type >= SLJIT_C_SIG_LESS && (((src1 & SLJIT_IMM) && (src1w == 0)) || ((src2 & SLJIT_IMM) && (src2w == 0)))) { 1682 inst = NOP; 1683 if ((src1 & SLJIT_IMM) && (src1w == 0)) { 1684 RESOLVE_IMM2(); 1685 switch (type) { 1686 case SLJIT_C_SIG_LESS: 1687 inst = BLEZ; 1688 jump->flags |= IS_BIT26_COND; 1689 break; 1690 case SLJIT_C_SIG_GREATER_EQUAL: 1691 inst = BGTZ; 1692 jump->flags |= IS_BIT26_COND; 1693 break; 1694 case SLJIT_C_SIG_GREATER: 1695 inst = BGEZ; 1696 jump->flags |= IS_BIT16_COND; 1697 break; 1698 case SLJIT_C_SIG_LESS_EQUAL: 1699 inst = BLTZ; 1700 jump->flags |= IS_BIT16_COND; 1701 break; 1702 } 1703 src1 = src2; 1704 } 1705 else { 1706 RESOLVE_IMM1(); 1707 switch (type) { 1708 case SLJIT_C_SIG_LESS: 1709 inst = BGEZ; 1710 jump->flags |= IS_BIT16_COND; 1711 break; 1712 case SLJIT_C_SIG_GREATER_EQUAL: 1713 inst = BLTZ; 1714 jump->flags |= IS_BIT16_COND; 1715 break; 1716 case SLJIT_C_SIG_GREATER: 1717 inst = BLEZ; 1718 jump->flags |= IS_BIT26_COND; 1719 break; 1720 case SLJIT_C_SIG_LESS_EQUAL: 1721 inst = BGTZ; 1722 jump->flags |= IS_BIT26_COND; 1723 break; 1724 } 1725 } 1726 PTR_FAIL_IF(push_inst(compiler, inst | S(src1) | JUMP_LENGTH, UNMOVABLE_INS)); 1727 } 1728 else { 1729 if (type == SLJIT_C_LESS || type == SLJIT_C_GREATER_EQUAL || type == SLJIT_C_SIG_LESS || type == SLJIT_C_SIG_GREATER_EQUAL) { 1730 RESOLVE_IMM1(); 1731 if ((src2 & SLJIT_IMM) && src2w <= SIMM_MAX && src2w >= SIMM_MIN) 1732 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTIU : SLTI) | S(src1) | T(TMP_REG1) | IMM(src2w), DR(TMP_REG1))); 1733 else { 1734 RESOLVE_IMM2(); 1735 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTU : SLT) | S(src1) | T(src2) | D(TMP_REG1), DR(TMP_REG1))); 1736 } 1737 type = (type == SLJIT_C_LESS || type == SLJIT_C_SIG_LESS) ? SLJIT_C_NOT_EQUAL : SLJIT_C_EQUAL; 1738 } 1739 else { 1740 RESOLVE_IMM2(); 1741 if ((src1 & SLJIT_IMM) && src1w <= SIMM_MAX && src1w >= SIMM_MIN) 1742 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTIU : SLTI) | S(src2) | T(TMP_REG1) | IMM(src1w), DR(TMP_REG1))); 1743 else { 1744 RESOLVE_IMM1(); 1745 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTU : SLT) | S(src2) | T(src1) | D(TMP_REG1), DR(TMP_REG1))); 1746 } 1747 type = (type == SLJIT_C_GREATER || type == SLJIT_C_SIG_GREATER) ? SLJIT_C_NOT_EQUAL : SLJIT_C_EQUAL; 1748 } 1749 1750 jump->flags |= IS_BIT26_COND; 1751 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_C_EQUAL ? BNE : BEQ) | S(TMP_REG1) | TA(0) | JUMP_LENGTH, UNMOVABLE_INS)); 1752 } 1753 1754 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1755 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); 1756 jump->addr = compiler->size; 1757 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1758 return jump; 1759 } 1760 1761 #undef RESOLVE_IMM1 1762 #undef RESOLVE_IMM2 1763 1764 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_fcmp(struct sljit_compiler *compiler, sljit_si type, 1765 sljit_si src1, sljit_sw src1w, 1766 sljit_si src2, sljit_sw src2w) 1767 { 1768 struct sljit_jump *jump; 1769 sljit_ins inst; 1770 sljit_si if_true; 1771 1772 CHECK_ERROR_PTR(); 1773 check_sljit_emit_fcmp(compiler, type, src1, src1w, src2, src2w); 1774 1775 compiler->cache_arg = 0; 1776 compiler->cache_argw = 0; 1777 1778 if (src1 & SLJIT_MEM) { 1779 PTR_FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(type) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w)); 1780 src1 = TMP_FREG1; 1781 } 1782 else 1783 src1 <<= 1; 1784 1785 if (src2 & SLJIT_MEM) { 1786 PTR_FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(type) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0)); 1787 src2 = TMP_FREG2; 1788 } 1789 else 1790 src2 <<= 1; 1791 1792 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1793 PTR_FAIL_IF(!jump); 1794 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1795 jump->flags |= IS_BIT16_COND; 1796 1797 switch (type & 0xff) { 1798 case SLJIT_C_FLOAT_EQUAL: 1799 inst = C_UEQ_fmt; 1800 if_true = 1; 1801 break; 1802 case SLJIT_C_FLOAT_NOT_EQUAL: 1803 inst = C_UEQ_fmt; 1804 if_true = 0; 1805 break; 1806 case SLJIT_C_FLOAT_LESS: 1807 inst = C_ULT_fmt; 1808 if_true = 1; 1809 break; 1810 case SLJIT_C_FLOAT_GREATER_EQUAL: 1811 inst = C_ULT_fmt; 1812 if_true = 0; 1813 break; 1814 case SLJIT_C_FLOAT_GREATER: 1815 inst = C_ULE_fmt; 1816 if_true = 0; 1817 break; 1818 case SLJIT_C_FLOAT_LESS_EQUAL: 1819 inst = C_ULE_fmt; 1820 if_true = 1; 1821 break; 1822 case SLJIT_C_FLOAT_UNORDERED: 1823 inst = C_UN_fmt; 1824 if_true = 1; 1825 break; 1826 case SLJIT_C_FLOAT_ORDERED: 1827 default: /* Make compilers happy. */ 1828 inst = C_UN_fmt; 1829 if_true = 0; 1830 break; 1831 } 1832 1833 PTR_FAIL_IF(push_inst(compiler, inst | FMT(type) | FT(src2) | FS(src1), UNMOVABLE_INS)); 1834 /* Intentionally the other opcode. */ 1835 PTR_FAIL_IF(push_inst(compiler, (if_true ? BC1F : BC1T) | JUMP_LENGTH, UNMOVABLE_INS)); 1836 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1837 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); 1838 jump->addr = compiler->size; 1839 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1840 return jump; 1841 } 1842 1843 #undef JUMP_LENGTH 1844 #undef BR_Z 1845 #undef BR_NZ 1846 #undef BR_T 1847 #undef BR_F 1848 1849 #undef FLOAT_DATA 1850 #undef FMT 1851 1852 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_ijump(struct sljit_compiler *compiler, sljit_si type, sljit_si src, sljit_sw srcw) 1853 { 1854 sljit_si src_r = TMP_REG2; 1855 struct sljit_jump *jump = NULL; 1856 1857 CHECK_ERROR(); 1858 check_sljit_emit_ijump(compiler, type, src, srcw); 1859 ADJUST_LOCAL_OFFSET(src, srcw); 1860 1861 if (FAST_IS_REG(src)) { 1862 if (DR(src) != 4) 1863 src_r = src; 1864 else 1865 FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); 1866 } 1867 1868 if (type >= SLJIT_CALL0) { 1869 SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG2); 1870 if (src & (SLJIT_IMM | SLJIT_MEM)) { 1871 if (src & SLJIT_IMM) 1872 FAIL_IF(load_immediate(compiler, DR(PIC_ADDR_REG), srcw)); 1873 else { 1874 SLJIT_ASSERT(src_r == TMP_REG2 && (src & SLJIT_MEM)); 1875 FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw)); 1876 } 1877 FAIL_IF(push_inst(compiler, JALR | S(PIC_ADDR_REG) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1878 /* We need an extra instruction in any case. */ 1879 return push_inst(compiler, ADDU_W | S(SLJIT_SCRATCH_REG1) | TA(0) | DA(4), UNMOVABLE_INS); 1880 } 1881 1882 /* Register input. */ 1883 if (type >= SLJIT_CALL1) 1884 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SCRATCH_REG1) | TA(0) | DA(4), 4)); 1885 FAIL_IF(push_inst(compiler, JALR | S(src_r) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1886 return push_inst(compiler, ADDU_W | S(src_r) | TA(0) | D(PIC_ADDR_REG), UNMOVABLE_INS); 1887 } 1888 1889 if (src & SLJIT_IMM) { 1890 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1891 FAIL_IF(!jump); 1892 set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_JAL : 0)); 1893 jump->u.target = srcw; 1894 1895 if (compiler->delay_slot != UNMOVABLE_INS) 1896 jump->flags |= IS_MOVABLE; 1897 1898 FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1899 } 1900 else if (src & SLJIT_MEM) 1901 FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw)); 1902 1903 FAIL_IF(push_inst(compiler, JR | S(src_r), UNMOVABLE_INS)); 1904 if (jump) 1905 jump->addr = compiler->size; 1906 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1907 return SLJIT_SUCCESS; 1908 } 1909 1910 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_si op, 1911 sljit_si dst, sljit_sw dstw, 1912 sljit_si src, sljit_sw srcw, 1913 sljit_si type) 1914 { 1915 sljit_si sugg_dst_ar, dst_ar; 1916 sljit_si flags = GET_ALL_FLAGS(op); 1917 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1918 # define mem_type WORD_DATA 1919 #else 1920 sljit_si mem_type = (op & SLJIT_INT_OP) ? (INT_DATA | SIGNED_DATA) : WORD_DATA; 1921 #endif 1922 1923 CHECK_ERROR(); 1924 check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type); 1925 ADJUST_LOCAL_OFFSET(dst, dstw); 1926 1927 if (dst == SLJIT_UNUSED) 1928 return SLJIT_SUCCESS; 1929 1930 op = GET_OPCODE(op); 1931 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1932 if (op == SLJIT_MOV_SI || op == SLJIT_MOV_UI) 1933 mem_type = INT_DATA | SIGNED_DATA; 1934 #endif 1935 sugg_dst_ar = DR((op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2); 1936 1937 compiler->cache_arg = 0; 1938 compiler->cache_argw = 0; 1939 if (op >= SLJIT_ADD && (src & SLJIT_MEM)) { 1940 ADJUST_LOCAL_OFFSET(src, srcw); 1941 FAIL_IF(emit_op_mem2(compiler, mem_type | LOAD_DATA, DR(TMP_REG1), src, srcw, dst, dstw)); 1942 src = TMP_REG1; 1943 srcw = 0; 1944 } 1945 1946 switch (type) { 1947 case SLJIT_C_EQUAL: 1948 case SLJIT_C_NOT_EQUAL: 1949 FAIL_IF(push_inst(compiler, SLTIU | SA(EQUAL_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); 1950 dst_ar = sugg_dst_ar; 1951 break; 1952 case SLJIT_C_LESS: 1953 case SLJIT_C_GREATER_EQUAL: 1954 case SLJIT_C_FLOAT_LESS: 1955 case SLJIT_C_FLOAT_GREATER_EQUAL: 1956 dst_ar = ULESS_FLAG; 1957 break; 1958 case SLJIT_C_GREATER: 1959 case SLJIT_C_LESS_EQUAL: 1960 case SLJIT_C_FLOAT_GREATER: 1961 case SLJIT_C_FLOAT_LESS_EQUAL: 1962 dst_ar = UGREATER_FLAG; 1963 break; 1964 case SLJIT_C_SIG_LESS: 1965 case SLJIT_C_SIG_GREATER_EQUAL: 1966 dst_ar = LESS_FLAG; 1967 break; 1968 case SLJIT_C_SIG_GREATER: 1969 case SLJIT_C_SIG_LESS_EQUAL: 1970 dst_ar = GREATER_FLAG; 1971 break; 1972 case SLJIT_C_OVERFLOW: 1973 case SLJIT_C_NOT_OVERFLOW: 1974 dst_ar = OVERFLOW_FLAG; 1975 break; 1976 case SLJIT_C_MUL_OVERFLOW: 1977 case SLJIT_C_MUL_NOT_OVERFLOW: 1978 FAIL_IF(push_inst(compiler, SLTIU | SA(OVERFLOW_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); 1979 dst_ar = sugg_dst_ar; 1980 type ^= 0x1; /* Flip type bit for the XORI below. */ 1981 break; 1982 case SLJIT_C_FLOAT_EQUAL: 1983 case SLJIT_C_FLOAT_NOT_EQUAL: 1984 dst_ar = EQUAL_FLAG; 1985 break; 1986 1987 case SLJIT_C_FLOAT_UNORDERED: 1988 case SLJIT_C_FLOAT_ORDERED: 1989 FAIL_IF(push_inst(compiler, CFC1 | TA(sugg_dst_ar) | DA(FCSR_REG), sugg_dst_ar)); 1990 FAIL_IF(push_inst(compiler, SRL | TA(sugg_dst_ar) | DA(sugg_dst_ar) | SH_IMM(23), sugg_dst_ar)); 1991 FAIL_IF(push_inst(compiler, ANDI | SA(sugg_dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); 1992 dst_ar = sugg_dst_ar; 1993 break; 1994 1995 default: 1996 SLJIT_ASSERT_STOP(); 1997 dst_ar = sugg_dst_ar; 1998 break; 1999 } 2000 2001 if (type & 0x1) { 2002 FAIL_IF(push_inst(compiler, XORI | SA(dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); 2003 dst_ar = sugg_dst_ar; 2004 } 2005 2006 if (op >= SLJIT_ADD) { 2007 if (DR(TMP_REG2) != dst_ar) 2008 FAIL_IF(push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); 2009 return emit_op(compiler, op | flags, mem_type | CUMULATIVE_OP | LOGICAL_OP | IMM_OP | ALT_KEEP_CACHE, dst, dstw, src, srcw, TMP_REG2, 0); 2010 } 2011 2012 if (dst & SLJIT_MEM) 2013 return emit_op_mem(compiler, mem_type, dst_ar, dst, dstw); 2014 2015 if (sugg_dst_ar != dst_ar) 2016 return push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | DA(sugg_dst_ar), sugg_dst_ar); 2017 return SLJIT_SUCCESS; 2018 2019 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 2020 # undef mem_type 2021 #endif 2022 } 2023 2024 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw, sljit_sw init_value) 2025 { 2026 struct sljit_const *const_; 2027 sljit_si reg; 2028 2029 CHECK_ERROR_PTR(); 2030 check_sljit_emit_const(compiler, dst, dstw, init_value); 2031 ADJUST_LOCAL_OFFSET(dst, dstw); 2032 2033 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const)); 2034 PTR_FAIL_IF(!const_); 2035 set_const(const_, compiler); 2036 2037 reg = SLOW_IS_REG(dst) ? dst : TMP_REG2; 2038 2039 PTR_FAIL_IF(emit_const(compiler, reg, init_value)); 2040 2041 if (dst & SLJIT_MEM) 2042 PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0)); 2043 return const_; 2044 } 2045
Indexes created Thu Oct 16 14:10:15 GMT 2025