1 /* 2 * Stack-less Just-In-Time compiler 3 * 4 * Copyright 2009-2012 Zoltan Herczeg (hzmester (at) freemail.hu). All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without modification, are 7 * permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, this list of 10 * conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 13 * of conditions and the following disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 /* Latest MIPS architecture. */ 28 /* Automatically detect SLJIT_MIPS_R1 */ 29 30 SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name(void) 31 { 32 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 33 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 34 return "MIPS32-R1" SLJIT_CPUINFO; 35 #else 36 return "MIPS64-R1" SLJIT_CPUINFO; 37 #endif 38 #else /* SLJIT_MIPS_R1 */ 39 return "MIPS III" SLJIT_CPUINFO; 40 #endif 41 } 42 43 /* Length of an instruction word 44 Both for mips-32 and mips-64 */ 45 typedef sljit_ui sljit_ins; 46 47 #define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2) 48 #define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3) 49 #define TMP_REG3 (SLJIT_NUMBER_OF_REGISTERS + 4) 50 51 /* For position independent code, t9 must contain the function address. */ 52 #define PIC_ADDR_REG TMP_REG2 53 54 /* Floating point status register. */ 55 #define FCSR_REG 31 56 /* Return address register. */ 57 #define RETURN_ADDR_REG 31 58 59 /* Flags are kept in volatile registers. */ 60 #define EQUAL_FLAG 12 61 /* And carry flag as well. */ 62 #define ULESS_FLAG 13 63 #define UGREATER_FLAG 14 64 #define LESS_FLAG 15 65 #define GREATER_FLAG 31 66 #define OVERFLOW_FLAG 1 67 68 #define TMP_FREG1 (0) 69 #define TMP_FREG2 ((SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1) << 1) 70 71 static SLJIT_CONST sljit_ub reg_map[SLJIT_NUMBER_OF_REGISTERS + 5] = { 72 0, 2, 5, 6, 7, 8, 9, 10, 11, 24, 23, 22, 21, 20, 19, 18, 17, 16, 29, 3, 25, 4 73 }; 74 75 /* --------------------------------------------------------------------- */ 76 /* Instrucion forms */ 77 /* --------------------------------------------------------------------- */ 78 79 #define S(s) (reg_map[s] << 21) 80 #define T(t) (reg_map[t] << 16) 81 #define D(d) (reg_map[d] << 11) 82 /* Absolute registers. */ 83 #define SA(s) ((s) << 21) 84 #define TA(t) ((t) << 16) 85 #define DA(d) ((d) << 11) 86 #define FT(t) ((t) << 16) 87 #define FS(s) ((s) << 11) 88 #define FD(d) ((d) << 6) 89 #define IMM(imm) ((imm) & 0xffff) 90 #define SH_IMM(imm) ((imm) << 6) 91 92 #define DR(dr) (reg_map[dr]) 93 #define HI(opcode) ((opcode) << 26) 94 #define LO(opcode) (opcode) 95 /* S = (16 << 21) D = (17 << 21) */ 96 #define FMT_S (16 << 21) 97 98 #define ABS_S (HI(17) | FMT_S | LO(5)) 99 #define ADD_S (HI(17) | FMT_S | LO(0)) 100 #define ADDIU (HI(9)) 101 #define ADDU (HI(0) | LO(33)) 102 #define AND (HI(0) | LO(36)) 103 #define ANDI (HI(12)) 104 #define B (HI(4)) 105 #define BAL (HI(1) | (17 << 16)) 106 #define BC1F (HI(17) | (8 << 21)) 107 #define BC1T (HI(17) | (8 << 21) | (1 << 16)) 108 #define BEQ (HI(4)) 109 #define BGEZ (HI(1) | (1 << 16)) 110 #define BGTZ (HI(7)) 111 #define BLEZ (HI(6)) 112 #define BLTZ (HI(1) | (0 << 16)) 113 #define BNE (HI(5)) 114 #define BREAK (HI(0) | LO(13)) 115 #define CFC1 (HI(17) | (2 << 21)) 116 #define C_UN_S (HI(17) | FMT_S | LO(49)) 117 #define C_UEQ_S (HI(17) | FMT_S | LO(51)) 118 #define C_ULE_S (HI(17) | FMT_S | LO(55)) 119 #define C_ULT_S (HI(17) | FMT_S | LO(53)) 120 #define CVT_S_S (HI(17) | FMT_S | LO(32)) 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_S (HI(17) | FMT_S | 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 MFC1 (HI(17)) 148 #define MFHI (HI(0) | LO(16)) 149 #define MFLO (HI(0) | LO(18)) 150 #define MOV_S (HI(17) | FMT_S | LO(6)) 151 #define MTC1 (HI(17) | (4 << 21)) 152 #define MUL_S (HI(17) | FMT_S | LO(2)) 153 #define MULT (HI(0) | LO(24)) 154 #define MULTU (HI(0) | LO(25)) 155 #define NEG_S (HI(17) | FMT_S | LO(7)) 156 #define NOP (HI(0) | LO(0)) 157 #define NOR (HI(0) | LO(39)) 158 #define OR (HI(0) | LO(37)) 159 #define ORI (HI(13)) 160 #define SD (HI(63)) 161 #define SLT (HI(0) | LO(42)) 162 #define SLTI (HI(10)) 163 #define SLTIU (HI(11)) 164 #define SLTU (HI(0) | LO(43)) 165 #define SLL (HI(0) | LO(0)) 166 #define SLLV (HI(0) | LO(4)) 167 #define SRL (HI(0) | LO(2)) 168 #define SRLV (HI(0) | LO(6)) 169 #define SRA (HI(0) | LO(3)) 170 #define SRAV (HI(0) | LO(7)) 171 #define SUB_S (HI(17) | FMT_S | LO(1)) 172 #define SUBU (HI(0) | LO(35)) 173 #define SW (HI(43)) 174 #define TRUNC_W_S (HI(17) | FMT_S | LO(13)) 175 #define XOR (HI(0) | LO(38)) 176 #define XORI (HI(14)) 177 178 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 179 #define CLZ (HI(28) | LO(32)) 180 #define DCLZ (HI(28) | LO(36)) 181 #define MUL (HI(28) | LO(2)) 182 #define SEB (HI(31) | (16 << 6) | LO(32)) 183 #define SEH (HI(31) | (24 << 6) | LO(32)) 184 #endif 185 186 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 187 #define ADDU_W ADDU 188 #define ADDIU_W ADDIU 189 #define SLL_W SLL 190 #define SUBU_W SUBU 191 #else 192 #define ADDU_W DADDU 193 #define ADDIU_W DADDIU 194 #define SLL_W DSLL 195 #define SUBU_W DSUBU 196 #endif 197 198 #define SIMM_MAX (0x7fff) 199 #define SIMM_MIN (-0x8000) 200 #define UIMM_MAX (0xffff) 201 202 /* dest_reg is the absolute name of the register 203 Useful for reordering instructions in the delay slot. */ 204 static sljit_si push_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_si delay_slot) 205 { 206 SLJIT_ASSERT(delay_slot == MOVABLE_INS || delay_slot >= UNMOVABLE_INS 207 || delay_slot == ((ins >> 11) & 0x1f) || delay_slot == ((ins >> 16) & 0x1f)); 208 sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins)); 209 FAIL_IF(!ptr); 210 *ptr = ins; 211 compiler->size++; 212 compiler->delay_slot = delay_slot; 213 return SLJIT_SUCCESS; 214 } 215 216 static SLJIT_INLINE sljit_ins invert_branch(sljit_si flags) 217 { 218 return (flags & IS_BIT26_COND) ? (1 << 26) : (1 << 16); 219 } 220 221 static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code) 222 { 223 sljit_sw diff; 224 sljit_uw target_addr; 225 sljit_ins *inst; 226 sljit_ins saved_inst; 227 228 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 229 if (jump->flags & (SLJIT_REWRITABLE_JUMP | IS_CALL)) 230 return code_ptr; 231 #else 232 if (jump->flags & SLJIT_REWRITABLE_JUMP) 233 return code_ptr; 234 #endif 235 236 if (jump->flags & JUMP_ADDR) 237 target_addr = jump->u.target; 238 else { 239 SLJIT_ASSERT(jump->flags & JUMP_LABEL); 240 target_addr = (sljit_uw)(code + jump->u.label->size); 241 } 242 inst = (sljit_ins*)jump->addr; 243 if (jump->flags & IS_COND) 244 inst--; 245 246 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 247 if (jump->flags & IS_CALL) 248 goto keep_address; 249 #endif 250 251 /* B instructions. */ 252 if (jump->flags & IS_MOVABLE) { 253 diff = ((sljit_sw)target_addr - (sljit_sw)(inst)) >> 2; 254 if (diff <= SIMM_MAX && diff >= SIMM_MIN) { 255 jump->flags |= PATCH_B; 256 257 if (!(jump->flags & IS_COND)) { 258 inst[0] = inst[-1]; 259 inst[-1] = (jump->flags & IS_JAL) ? BAL : B; 260 jump->addr -= sizeof(sljit_ins); 261 return inst; 262 } 263 saved_inst = inst[0]; 264 inst[0] = inst[-1]; 265 inst[-1] = saved_inst ^ invert_branch(jump->flags); 266 jump->addr -= 2 * sizeof(sljit_ins); 267 return inst; 268 } 269 } 270 else { 271 diff = ((sljit_sw)target_addr - (sljit_sw)(inst + 1)) >> 2; 272 if (diff <= SIMM_MAX && diff >= SIMM_MIN) { 273 jump->flags |= PATCH_B; 274 275 if (!(jump->flags & IS_COND)) { 276 inst[0] = (jump->flags & IS_JAL) ? BAL : B; 277 inst[1] = NOP; 278 return inst + 1; 279 } 280 inst[0] = inst[0] ^ invert_branch(jump->flags); 281 inst[1] = NOP; 282 jump->addr -= sizeof(sljit_ins); 283 return inst + 1; 284 } 285 } 286 287 if (jump->flags & IS_COND) { 288 if ((jump->flags & IS_MOVABLE) && (target_addr & ~0xfffffff) == ((jump->addr + 2 * sizeof(sljit_ins)) & ~0xfffffff)) { 289 jump->flags |= PATCH_J; 290 saved_inst = inst[0]; 291 inst[0] = inst[-1]; 292 inst[-1] = (saved_inst & 0xffff0000) | 3; 293 inst[1] = J; 294 inst[2] = NOP; 295 return inst + 2; 296 } 297 else if ((target_addr & ~0xfffffff) == ((jump->addr + 3 * sizeof(sljit_ins)) & ~0xfffffff)) { 298 jump->flags |= PATCH_J; 299 inst[0] = (inst[0] & 0xffff0000) | 3; 300 inst[1] = NOP; 301 inst[2] = J; 302 inst[3] = NOP; 303 jump->addr += sizeof(sljit_ins); 304 return inst + 3; 305 } 306 } 307 else { 308 /* J instuctions. */ 309 if ((jump->flags & IS_MOVABLE) && (target_addr & ~0xfffffff) == (jump->addr & ~0xfffffff)) { 310 jump->flags |= PATCH_J; 311 inst[0] = inst[-1]; 312 inst[-1] = (jump->flags & IS_JAL) ? JAL : J; 313 jump->addr -= sizeof(sljit_ins); 314 return inst; 315 } 316 317 if ((target_addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)) { 318 jump->flags |= PATCH_J; 319 inst[0] = (jump->flags & IS_JAL) ? JAL : J; 320 inst[1] = NOP; 321 return inst + 1; 322 } 323 } 324 325 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 326 keep_address: 327 if (target_addr <= 0x7fffffff) { 328 jump->flags |= PATCH_ABS32; 329 if (jump->flags & IS_COND) { 330 inst[0] -= 4; 331 inst++; 332 } 333 inst[2] = inst[6]; 334 inst[3] = inst[7]; 335 return inst + 3; 336 } 337 if (target_addr <= 0x7fffffffffffl) { 338 jump->flags |= PATCH_ABS48; 339 if (jump->flags & IS_COND) { 340 inst[0] -= 2; 341 inst++; 342 } 343 inst[4] = inst[6]; 344 inst[5] = inst[7]; 345 return inst + 5; 346 } 347 #endif 348 349 return code_ptr; 350 } 351 352 #ifdef __GNUC__ 353 static __attribute__ ((noinline)) void sljit_cache_flush(void* code, void* code_ptr) 354 { 355 SLJIT_CACHE_FLUSH(code, code_ptr); 356 } 357 #endif 358 359 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler) 360 { 361 struct sljit_memory_fragment *buf; 362 sljit_ins *code; 363 sljit_ins *code_ptr; 364 sljit_ins *buf_ptr; 365 sljit_ins *buf_end; 366 sljit_uw word_count; 367 sljit_uw addr; 368 369 struct sljit_label *label; 370 struct sljit_jump *jump; 371 struct sljit_const *const_; 372 373 CHECK_ERROR_PTR(); 374 check_sljit_generate_code(compiler); 375 reverse_buf(compiler); 376 377 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins)); 378 PTR_FAIL_WITH_EXEC_IF(code); 379 buf = compiler->buf; 380 381 code_ptr = code; 382 word_count = 0; 383 label = compiler->labels; 384 jump = compiler->jumps; 385 const_ = compiler->consts; 386 do { 387 buf_ptr = (sljit_ins*)buf->memory; 388 buf_end = buf_ptr + (buf->used_size >> 2); 389 do { 390 *code_ptr = *buf_ptr++; 391 SLJIT_ASSERT(!label || label->size >= word_count); 392 SLJIT_ASSERT(!jump || jump->addr >= word_count); 393 SLJIT_ASSERT(!const_ || const_->addr >= word_count); 394 /* These structures are ordered by their address. */ 395 if (label && label->size == word_count) { 396 /* Just recording the address. */ 397 label->addr = (sljit_uw)code_ptr; 398 label->size = code_ptr - code; 399 label = label->next; 400 } 401 if (jump && jump->addr == word_count) { 402 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 403 jump->addr = (sljit_uw)(code_ptr - 3); 404 #else 405 jump->addr = (sljit_uw)(code_ptr - 7); 406 #endif 407 code_ptr = detect_jump_type(jump, code_ptr, code); 408 jump = jump->next; 409 } 410 if (const_ && const_->addr == word_count) { 411 /* Just recording the address. */ 412 const_->addr = (sljit_uw)code_ptr; 413 const_ = const_->next; 414 } 415 code_ptr ++; 416 word_count ++; 417 } while (buf_ptr < buf_end); 418 419 buf = buf->next; 420 } while (buf); 421 422 if (label && label->size == word_count) { 423 label->addr = (sljit_uw)code_ptr; 424 label->size = code_ptr - code; 425 label = label->next; 426 } 427 428 SLJIT_ASSERT(!label); 429 SLJIT_ASSERT(!jump); 430 SLJIT_ASSERT(!const_); 431 SLJIT_ASSERT(code_ptr - code <= (sljit_sw)compiler->size); 432 433 jump = compiler->jumps; 434 while (jump) { 435 do { 436 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target; 437 buf_ptr = (sljit_ins*)jump->addr; 438 439 if (jump->flags & PATCH_B) { 440 addr = (sljit_sw)(addr - (jump->addr + sizeof(sljit_ins))) >> 2; 441 SLJIT_ASSERT((sljit_sw)addr <= SIMM_MAX && (sljit_sw)addr >= SIMM_MIN); 442 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | (addr & 0xffff); 443 break; 444 } 445 if (jump->flags & PATCH_J) { 446 SLJIT_ASSERT((addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)); 447 buf_ptr[0] |= (addr >> 2) & 0x03ffffff; 448 break; 449 } 450 451 /* Set the fields of immediate loads. */ 452 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 453 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff); 454 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff); 455 #else 456 if (jump->flags & PATCH_ABS32) { 457 SLJIT_ASSERT(addr <= 0x7fffffff); 458 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff); 459 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff); 460 } 461 else if (jump->flags & PATCH_ABS48) { 462 SLJIT_ASSERT(addr <= 0x7fffffffffffl); 463 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 32) & 0xffff); 464 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 16) & 0xffff); 465 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | (addr & 0xffff); 466 } 467 else { 468 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff); 469 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff); 470 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff); 471 buf_ptr[5] = (buf_ptr[5] & 0xffff0000) | (addr & 0xffff); 472 } 473 #endif 474 } while (0); 475 jump = jump->next; 476 } 477 478 compiler->error = SLJIT_ERR_COMPILED; 479 compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins); 480 #ifndef __GNUC__ 481 SLJIT_CACHE_FLUSH(code, code_ptr); 482 #else 483 /* GCC workaround for invalid code generation with -O2. */ 484 sljit_cache_flush(code, code_ptr); 485 #endif 486 return code; 487 } 488 489 /* --------------------------------------------------------------------- */ 490 /* Entry, exit */ 491 /* --------------------------------------------------------------------- */ 492 493 /* Creates an index in data_transfer_insts array. */ 494 #define LOAD_DATA 0x01 495 #define WORD_DATA 0x00 496 #define BYTE_DATA 0x02 497 #define HALF_DATA 0x04 498 #define INT_DATA 0x06 499 #define SIGNED_DATA 0x08 500 /* Separates integer and floating point registers */ 501 #define GPR_REG 0x0f 502 #define DOUBLE_DATA 0x10 503 #define SINGLE_DATA 0x12 504 505 #define MEM_MASK 0x1f 506 507 #define WRITE_BACK 0x00020 508 #define ARG_TEST 0x00040 509 #define ALT_KEEP_CACHE 0x00080 510 #define CUMULATIVE_OP 0x00100 511 #define LOGICAL_OP 0x00200 512 #define IMM_OP 0x00400 513 #define SRC2_IMM 0x00800 514 515 #define UNUSED_DEST 0x01000 516 #define REG_DEST 0x02000 517 #define REG1_SOURCE 0x04000 518 #define REG2_SOURCE 0x08000 519 #define SLOW_SRC1 0x10000 520 #define SLOW_SRC2 0x20000 521 #define SLOW_DEST 0x40000 522 523 /* Only these flags are set. UNUSED_DEST is not set when no flags should be set. */ 524 #define CHECK_FLAGS(list) \ 525 (!(flags & UNUSED_DEST) || (op & GET_FLAGS(~(list)))) 526 527 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 528 #define STACK_STORE SW 529 #define STACK_LOAD LW 530 #else 531 #define STACK_STORE SD 532 #define STACK_LOAD LD 533 #endif 534 535 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 536 #include "sljitNativeMIPS_32.c" 537 #else 538 #include "sljitNativeMIPS_64.c" 539 #endif 540 541 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_enter(struct sljit_compiler *compiler, 542 sljit_si options, sljit_si args, sljit_si scratches, sljit_si saveds, 543 sljit_si fscratches, sljit_si fsaveds, sljit_si local_size) 544 { 545 sljit_ins base; 546 sljit_si i, tmp, offs; 547 548 CHECK_ERROR(); 549 check_sljit_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size); 550 551 compiler->options = options; 552 compiler->scratches = scratches; 553 compiler->saveds = saveds; 554 compiler->fscratches = fscratches; 555 compiler->fsaveds = fsaveds; 556 #if (defined SLJIT_DEBUG && SLJIT_DEBUG) 557 compiler->logical_local_size = local_size; 558 #endif 559 560 local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1) + FIXED_LOCALS_OFFSET; 561 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 562 local_size = (local_size + 15) & ~0xf; 563 #else 564 local_size = (local_size + 31) & ~0x1f; 565 #endif 566 compiler->local_size = local_size; 567 568 if (local_size <= SIMM_MAX) { 569 /* Frequent case. */ 570 FAIL_IF(push_inst(compiler, ADDIU_W | S(SLJIT_SP) | T(SLJIT_SP) | IMM(-local_size), DR(SLJIT_SP))); 571 base = S(SLJIT_SP); 572 } 573 else { 574 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size)); 575 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SP) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); 576 FAIL_IF(push_inst(compiler, SUBU_W | S(SLJIT_SP) | T(TMP_REG1) | D(SLJIT_SP), DR(SLJIT_SP))); 577 base = S(TMP_REG2); 578 local_size = 0; 579 } 580 581 offs = local_size - (sljit_sw)(sizeof(sljit_sw)); 582 FAIL_IF(push_inst(compiler, STACK_STORE | base | TA(RETURN_ADDR_REG) | IMM(offs), MOVABLE_INS)); 583 584 tmp = saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - saveds) : SLJIT_FIRST_SAVED_REG; 585 for (i = SLJIT_S0; i >= tmp; i--) { 586 offs -= (sljit_si)(sizeof(sljit_sw)); 587 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(i) | IMM(offs), MOVABLE_INS)); 588 } 589 590 for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--) { 591 offs -= (sljit_si)(sizeof(sljit_sw)); 592 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(i) | IMM(offs), MOVABLE_INS)); 593 } 594 595 if (args >= 1) 596 FAIL_IF(push_inst(compiler, ADDU_W | SA(4) | TA(0) | D(SLJIT_S0), DR(SLJIT_S0))); 597 if (args >= 2) 598 FAIL_IF(push_inst(compiler, ADDU_W | SA(5) | TA(0) | D(SLJIT_S1), DR(SLJIT_S1))); 599 if (args >= 3) 600 FAIL_IF(push_inst(compiler, ADDU_W | SA(6) | TA(0) | D(SLJIT_S2), DR(SLJIT_S2))); 601 602 return SLJIT_SUCCESS; 603 } 604 605 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, 606 sljit_si options, sljit_si args, sljit_si scratches, sljit_si saveds, 607 sljit_si fscratches, sljit_si fsaveds, sljit_si local_size) 608 { 609 CHECK_ERROR_VOID(); 610 check_sljit_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size); 611 612 compiler->options = options; 613 compiler->scratches = scratches; 614 compiler->saveds = saveds; 615 compiler->fscratches = fscratches; 616 compiler->fsaveds = fsaveds; 617 #if (defined SLJIT_DEBUG && SLJIT_DEBUG) 618 compiler->logical_local_size = local_size; 619 #endif 620 621 local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1) + FIXED_LOCALS_OFFSET; 622 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 623 compiler->local_size = (local_size + 15) & ~0xf; 624 #else 625 compiler->local_size = (local_size + 31) & ~0x1f; 626 #endif 627 } 628 629 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_return(struct sljit_compiler *compiler, sljit_si op, sljit_si src, sljit_sw srcw) 630 { 631 sljit_si local_size, i, tmp, offs; 632 sljit_ins base; 633 634 CHECK_ERROR(); 635 check_sljit_emit_return(compiler, op, src, srcw); 636 637 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw)); 638 639 local_size = compiler->local_size; 640 if (local_size <= SIMM_MAX) 641 base = S(SLJIT_SP); 642 else { 643 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size)); 644 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SP) | T(TMP_REG1) | D(TMP_REG1), DR(TMP_REG1))); 645 base = S(TMP_REG1); 646 local_size = 0; 647 } 648 649 FAIL_IF(push_inst(compiler, STACK_LOAD | base | TA(RETURN_ADDR_REG) | IMM(local_size - (sljit_si)sizeof(sljit_sw)), RETURN_ADDR_REG)); 650 offs = local_size - (sljit_si)GET_SAVED_REGISTERS_SIZE(compiler->scratches, compiler->saveds, 1); 651 652 tmp = compiler->scratches; 653 for (i = SLJIT_FIRST_SAVED_REG; i <= tmp; i++) { 654 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(i) | IMM(offs), DR(i))); 655 offs += (sljit_si)(sizeof(sljit_sw)); 656 } 657 658 tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG; 659 for (i = tmp; i <= SLJIT_S0; i++) { 660 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(i) | IMM(offs), DR(i))); 661 offs += (sljit_si)(sizeof(sljit_sw)); 662 } 663 664 SLJIT_ASSERT(offs == local_size - (sljit_sw)(sizeof(sljit_sw))); 665 666 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS)); 667 if (compiler->local_size <= SIMM_MAX) 668 return push_inst(compiler, ADDIU_W | S(SLJIT_SP) | T(SLJIT_SP) | IMM(compiler->local_size), UNMOVABLE_INS); 669 else 670 return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(SLJIT_SP), UNMOVABLE_INS); 671 } 672 673 #undef STACK_STORE 674 #undef STACK_LOAD 675 676 /* --------------------------------------------------------------------- */ 677 /* Operators */ 678 /* --------------------------------------------------------------------- */ 679 680 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 681 #define ARCH_32_64(a, b) a 682 #else 683 #define ARCH_32_64(a, b) b 684 #endif 685 686 static SLJIT_CONST sljit_ins data_transfer_insts[16 + 4] = { 687 /* u w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */), 688 /* u w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */), 689 /* u b s */ HI(40) /* sb */, 690 /* u b l */ HI(36) /* lbu */, 691 /* u h s */ HI(41) /* sh */, 692 /* u h l */ HI(37) /* lhu */, 693 /* u i s */ HI(43) /* sw */, 694 /* u i l */ ARCH_32_64(HI(35) /* lw */, HI(39) /* lwu */), 695 696 /* s w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */), 697 /* s w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */), 698 /* s b s */ HI(40) /* sb */, 699 /* s b l */ HI(32) /* lb */, 700 /* s h s */ HI(41) /* sh */, 701 /* s h l */ HI(33) /* lh */, 702 /* s i s */ HI(43) /* sw */, 703 /* s i l */ HI(35) /* lw */, 704 705 /* d s */ HI(61) /* sdc1 */, 706 /* d l */ HI(53) /* ldc1 */, 707 /* s s */ HI(57) /* swc1 */, 708 /* s l */ HI(49) /* lwc1 */, 709 }; 710 711 #undef ARCH_32_64 712 713 /* reg_ar is an absoulute register! */ 714 715 /* Can perform an operation using at most 1 instruction. */ 716 static sljit_si getput_arg_fast(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg_ar, sljit_si arg, sljit_sw argw) 717 { 718 SLJIT_ASSERT(arg & SLJIT_MEM); 719 720 if ((!(flags & WRITE_BACK) || !(arg & REG_MASK)) && !(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN) { 721 /* Works for both absoulte and relative addresses. */ 722 if (SLJIT_UNLIKELY(flags & ARG_TEST)) 723 return 1; 724 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(arg & REG_MASK) 725 | TA(reg_ar) | IMM(argw), ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? reg_ar : MOVABLE_INS)); 726 return -1; 727 } 728 return 0; 729 } 730 731 /* See getput_arg below. 732 Note: can_cache is called only for binary operators. Those 733 operators always uses word arguments without write back. */ 734 static sljit_si can_cache(sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw) 735 { 736 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM)); 737 738 /* Simple operation except for updates. */ 739 if (arg & OFFS_REG_MASK) { 740 argw &= 0x3; 741 next_argw &= 0x3; 742 if (argw && argw == next_argw && (arg == next_arg || (arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK))) 743 return 1; 744 return 0; 745 } 746 747 if (arg == next_arg) { 748 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN)) 749 return 1; 750 return 0; 751 } 752 753 return 0; 754 } 755 756 /* Emit the necessary instructions. See can_cache above. */ 757 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) 758 { 759 sljit_si tmp_ar, base, delay_slot; 760 761 SLJIT_ASSERT(arg & SLJIT_MEM); 762 if (!(next_arg & SLJIT_MEM)) { 763 next_arg = 0; 764 next_argw = 0; 765 } 766 767 if ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) { 768 tmp_ar = reg_ar; 769 delay_slot = reg_ar; 770 } else { 771 tmp_ar = DR(TMP_REG1); 772 delay_slot = MOVABLE_INS; 773 } 774 base = arg & REG_MASK; 775 776 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) { 777 argw &= 0x3; 778 if ((flags & WRITE_BACK) && reg_ar == DR(base)) { 779 SLJIT_ASSERT(!(flags & LOAD_DATA) && DR(TMP_REG1) != reg_ar); 780 FAIL_IF(push_inst(compiler, ADDU_W | SA(reg_ar) | TA(0) | D(TMP_REG1), DR(TMP_REG1))); 781 reg_ar = DR(TMP_REG1); 782 } 783 784 /* Using the cache. */ 785 if (argw == compiler->cache_argw) { 786 if (!(flags & WRITE_BACK)) { 787 if (arg == compiler->cache_arg) 788 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 789 if ((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) { 790 if (arg == next_arg && argw == (next_argw & 0x3)) { 791 compiler->cache_arg = arg; 792 compiler->cache_argw = argw; 793 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(TMP_REG3), DR(TMP_REG3))); 794 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 795 } 796 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | DA(tmp_ar), tmp_ar)); 797 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 798 } 799 } 800 else { 801 if ((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) { 802 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); 803 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), delay_slot); 804 } 805 } 806 } 807 808 if (SLJIT_UNLIKELY(argw)) { 809 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK); 810 compiler->cache_argw = argw; 811 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(arg)) | D(TMP_REG3) | SH_IMM(argw), DR(TMP_REG3))); 812 } 813 814 if (!(flags & WRITE_BACK)) { 815 if (arg == next_arg && argw == (next_argw & 0x3)) { 816 compiler->cache_arg = arg; 817 compiler->cache_argw = argw; 818 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | D(TMP_REG3), DR(TMP_REG3))); 819 tmp_ar = DR(TMP_REG3); 820 } 821 else 822 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | DA(tmp_ar), tmp_ar)); 823 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 824 } 825 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | D(base), DR(base))); 826 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), delay_slot); 827 } 828 829 if (SLJIT_UNLIKELY(flags & WRITE_BACK) && base) { 830 /* Update only applies if a base register exists. */ 831 if (reg_ar == DR(base)) { 832 SLJIT_ASSERT(!(flags & LOAD_DATA) && DR(TMP_REG1) != reg_ar); 833 if (argw <= SIMM_MAX && argw >= SIMM_MIN) { 834 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar) | IMM(argw), MOVABLE_INS)); 835 if (argw) 836 return push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base)); 837 return SLJIT_SUCCESS; 838 } 839 FAIL_IF(push_inst(compiler, ADDU_W | SA(reg_ar) | TA(0) | D(TMP_REG1), DR(TMP_REG1))); 840 reg_ar = DR(TMP_REG1); 841 } 842 843 if (argw <= SIMM_MAX && argw >= SIMM_MIN) { 844 if (argw) 845 FAIL_IF(push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base))); 846 } 847 else { 848 if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { 849 if (argw != compiler->cache_argw) { 850 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 851 compiler->cache_argw = argw; 852 } 853 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); 854 } 855 else { 856 compiler->cache_arg = SLJIT_MEM; 857 compiler->cache_argw = argw; 858 FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); 859 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); 860 } 861 } 862 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), delay_slot); 863 } 864 865 if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { 866 if (argw != compiler->cache_argw) { 867 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 868 compiler->cache_argw = argw; 869 } 870 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 871 } 872 873 if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { 874 if (argw != compiler->cache_argw) 875 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 876 } 877 else { 878 compiler->cache_arg = SLJIT_MEM; 879 FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); 880 } 881 compiler->cache_argw = argw; 882 883 if (!base) 884 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 885 886 if (arg == next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN) { 887 compiler->cache_arg = arg; 888 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | D(TMP_REG3), DR(TMP_REG3))); 889 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 890 } 891 892 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | DA(tmp_ar), tmp_ar)); 893 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 894 } 895 896 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) 897 { 898 if (getput_arg_fast(compiler, flags, reg_ar, arg, argw)) 899 return compiler->error; 900 compiler->cache_arg = 0; 901 compiler->cache_argw = 0; 902 return getput_arg(compiler, flags, reg_ar, arg, argw, 0, 0); 903 } 904 905 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) 906 { 907 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w)) 908 return compiler->error; 909 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w); 910 } 911 912 static sljit_si emit_op(struct sljit_compiler *compiler, sljit_si op, sljit_si flags, 913 sljit_si dst, sljit_sw dstw, 914 sljit_si src1, sljit_sw src1w, 915 sljit_si src2, sljit_sw src2w) 916 { 917 /* arg1 goes to TMP_REG1 or src reg 918 arg2 goes to TMP_REG2, imm or src reg 919 TMP_REG3 can be used for caching 920 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */ 921 sljit_si dst_r = TMP_REG2; 922 sljit_si src1_r; 923 sljit_sw src2_r = 0; 924 sljit_si sugg_src2_r = TMP_REG2; 925 926 if (!(flags & ALT_KEEP_CACHE)) { 927 compiler->cache_arg = 0; 928 compiler->cache_argw = 0; 929 } 930 931 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) { 932 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM)) 933 return SLJIT_SUCCESS; 934 if (GET_FLAGS(op)) 935 flags |= UNUSED_DEST; 936 } 937 else if (FAST_IS_REG(dst)) { 938 dst_r = dst; 939 flags |= REG_DEST; 940 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) 941 sugg_src2_r = dst_r; 942 } 943 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, DR(TMP_REG1), dst, dstw)) 944 flags |= SLOW_DEST; 945 946 if (flags & IMM_OP) { 947 if ((src2 & SLJIT_IMM) && src2w) { 948 if ((!(flags & LOGICAL_OP) && (src2w <= SIMM_MAX && src2w >= SIMM_MIN)) 949 || ((flags & LOGICAL_OP) && !(src2w & ~UIMM_MAX))) { 950 flags |= SRC2_IMM; 951 src2_r = src2w; 952 } 953 } 954 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) { 955 if ((!(flags & LOGICAL_OP) && (src1w <= SIMM_MAX && src1w >= SIMM_MIN)) 956 || ((flags & LOGICAL_OP) && !(src1w & ~UIMM_MAX))) { 957 flags |= SRC2_IMM; 958 src2_r = src1w; 959 960 /* And swap arguments. */ 961 src1 = src2; 962 src1w = src2w; 963 src2 = SLJIT_IMM; 964 /* src2w = src2_r unneeded. */ 965 } 966 } 967 } 968 969 /* Source 1. */ 970 if (FAST_IS_REG(src1)) { 971 src1_r = src1; 972 flags |= REG1_SOURCE; 973 } 974 else if (src1 & SLJIT_IMM) { 975 if (src1w) { 976 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); 977 src1_r = TMP_REG1; 978 } 979 else 980 src1_r = 0; 981 } 982 else { 983 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w)) 984 FAIL_IF(compiler->error); 985 else 986 flags |= SLOW_SRC1; 987 src1_r = TMP_REG1; 988 } 989 990 /* Source 2. */ 991 if (FAST_IS_REG(src2)) { 992 src2_r = src2; 993 flags |= REG2_SOURCE; 994 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) 995 dst_r = src2_r; 996 } 997 else if (src2 & SLJIT_IMM) { 998 if (!(flags & SRC2_IMM)) { 999 if (src2w) { 1000 FAIL_IF(load_immediate(compiler, DR(sugg_src2_r), src2w)); 1001 src2_r = sugg_src2_r; 1002 } 1003 else { 1004 src2_r = 0; 1005 if ((op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) && (dst & SLJIT_MEM)) 1006 dst_r = 0; 1007 } 1008 } 1009 } 1010 else { 1011 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w)) 1012 FAIL_IF(compiler->error); 1013 else 1014 flags |= SLOW_SRC2; 1015 src2_r = sugg_src2_r; 1016 } 1017 1018 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 1019 SLJIT_ASSERT(src2_r == TMP_REG2); 1020 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 1021 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, src1, src1w)); 1022 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw)); 1023 } 1024 else { 1025 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, src2, src2w)); 1026 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, dst, dstw)); 1027 } 1028 } 1029 else if (flags & SLOW_SRC1) 1030 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw)); 1031 else if (flags & SLOW_SRC2) 1032 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w, dst, dstw)); 1033 1034 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r)); 1035 1036 if (dst & SLJIT_MEM) { 1037 if (!(flags & SLOW_DEST)) { 1038 getput_arg_fast(compiler, flags, DR(dst_r), dst, dstw); 1039 return compiler->error; 1040 } 1041 return getput_arg(compiler, flags, DR(dst_r), dst, dstw, 0, 0); 1042 } 1043 1044 return SLJIT_SUCCESS; 1045 } 1046 1047 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op0(struct sljit_compiler *compiler, sljit_si op) 1048 { 1049 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1050 sljit_si int_op = op & SLJIT_INT_OP; 1051 #endif 1052 1053 CHECK_ERROR(); 1054 check_sljit_emit_op0(compiler, op); 1055 1056 op = GET_OPCODE(op); 1057 switch (op) { 1058 case SLJIT_BREAKPOINT: 1059 return push_inst(compiler, BREAK, UNMOVABLE_INS); 1060 case SLJIT_NOP: 1061 return push_inst(compiler, NOP, UNMOVABLE_INS); 1062 case SLJIT_UMUL: 1063 case SLJIT_SMUL: 1064 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1065 FAIL_IF(push_inst(compiler, (op == SLJIT_UMUL ? DMULTU : DMULT) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1066 #else 1067 FAIL_IF(push_inst(compiler, (op == SLJIT_UMUL ? MULTU : MULT) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1068 #endif 1069 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_R0), DR(SLJIT_R0))); 1070 return push_inst(compiler, MFHI | D(SLJIT_R1), DR(SLJIT_R1)); 1071 case SLJIT_UDIV: 1072 case SLJIT_SDIV: 1073 #if !(defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 1074 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1075 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1076 #endif 1077 1078 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1079 if (int_op) 1080 FAIL_IF(push_inst(compiler, (op == SLJIT_UDIV ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1081 else 1082 FAIL_IF(push_inst(compiler, (op == SLJIT_UDIV ? DDIVU : DDIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1083 #else 1084 FAIL_IF(push_inst(compiler, (op == SLJIT_UDIV ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1085 #endif 1086 1087 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_R0), DR(SLJIT_R0))); 1088 return push_inst(compiler, MFHI | D(SLJIT_R1), DR(SLJIT_R1)); 1089 } 1090 1091 return SLJIT_SUCCESS; 1092 } 1093 1094 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op1(struct sljit_compiler *compiler, sljit_si op, 1095 sljit_si dst, sljit_sw dstw, 1096 sljit_si src, sljit_sw srcw) 1097 { 1098 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1099 # define flags 0 1100 #else 1101 sljit_si flags = 0; 1102 #endif 1103 1104 CHECK_ERROR(); 1105 check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw); 1106 ADJUST_LOCAL_OFFSET(dst, dstw); 1107 ADJUST_LOCAL_OFFSET(src, srcw); 1108 1109 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1110 if ((op & SLJIT_INT_OP) && GET_OPCODE(op) >= SLJIT_NOT) { 1111 flags |= INT_DATA | SIGNED_DATA; 1112 if (src & SLJIT_IMM) 1113 srcw = (sljit_si)srcw; 1114 } 1115 #endif 1116 1117 switch (GET_OPCODE(op)) { 1118 case SLJIT_MOV: 1119 case SLJIT_MOV_P: 1120 return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 1121 1122 case SLJIT_MOV_UI: 1123 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1124 return emit_op(compiler, SLJIT_MOV_UI, INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 1125 #else 1126 return emit_op(compiler, SLJIT_MOV_UI, INT_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ui)srcw : srcw); 1127 #endif 1128 1129 case SLJIT_MOV_SI: 1130 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1131 return emit_op(compiler, SLJIT_MOV_SI, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 1132 #else 1133 return emit_op(compiler, SLJIT_MOV_SI, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_si)srcw : srcw); 1134 #endif 1135 1136 case SLJIT_MOV_UB: 1137 return emit_op(compiler, SLJIT_MOV_UB, BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw); 1138 1139 case SLJIT_MOV_SB: 1140 return emit_op(compiler, SLJIT_MOV_SB, BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sb)srcw : srcw); 1141 1142 case SLJIT_MOV_UH: 1143 return emit_op(compiler, SLJIT_MOV_UH, HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw); 1144 1145 case SLJIT_MOV_SH: 1146 return emit_op(compiler, SLJIT_MOV_SH, HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sh)srcw : srcw); 1147 1148 case SLJIT_MOVU: 1149 case SLJIT_MOVU_P: 1150 return emit_op(compiler, SLJIT_MOV, WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 1151 1152 case SLJIT_MOVU_UI: 1153 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1154 return emit_op(compiler, SLJIT_MOV_UI, INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 1155 #else 1156 return emit_op(compiler, SLJIT_MOV_UI, INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ui)srcw : srcw); 1157 #endif 1158 1159 case SLJIT_MOVU_SI: 1160 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1161 return emit_op(compiler, SLJIT_MOV_SI, INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 1162 #else 1163 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); 1164 #endif 1165 1166 case SLJIT_MOVU_UB: 1167 return emit_op(compiler, SLJIT_MOV_UB, BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw); 1168 1169 case SLJIT_MOVU_SB: 1170 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); 1171 1172 case SLJIT_MOVU_UH: 1173 return emit_op(compiler, SLJIT_MOV_UH, HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw); 1174 1175 case SLJIT_MOVU_SH: 1176 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); 1177 1178 case SLJIT_NOT: 1179 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw); 1180 1181 case SLJIT_NEG: 1182 return emit_op(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw); 1183 1184 case SLJIT_CLZ: 1185 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw); 1186 } 1187 1188 return SLJIT_SUCCESS; 1189 1190 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1191 # undef flags 1192 #endif 1193 } 1194 1195 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op2(struct sljit_compiler *compiler, sljit_si op, 1196 sljit_si dst, sljit_sw dstw, 1197 sljit_si src1, sljit_sw src1w, 1198 sljit_si src2, sljit_sw src2w) 1199 { 1200 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1201 # define flags 0 1202 #else 1203 sljit_si flags = 0; 1204 #endif 1205 1206 CHECK_ERROR(); 1207 check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w); 1208 ADJUST_LOCAL_OFFSET(dst, dstw); 1209 ADJUST_LOCAL_OFFSET(src1, src1w); 1210 ADJUST_LOCAL_OFFSET(src2, src2w); 1211 1212 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1213 if (op & SLJIT_INT_OP) { 1214 flags |= INT_DATA | SIGNED_DATA; 1215 if (src1 & SLJIT_IMM) 1216 src1w = (sljit_si)src1w; 1217 if (src2 & SLJIT_IMM) 1218 src2w = (sljit_si)src2w; 1219 } 1220 #endif 1221 1222 switch (GET_OPCODE(op)) { 1223 case SLJIT_ADD: 1224 case SLJIT_ADDC: 1225 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1226 1227 case SLJIT_SUB: 1228 case SLJIT_SUBC: 1229 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1230 1231 case SLJIT_MUL: 1232 return emit_op(compiler, op, flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w); 1233 1234 case SLJIT_AND: 1235 case SLJIT_OR: 1236 case SLJIT_XOR: 1237 return emit_op(compiler, op, flags | CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1238 1239 case SLJIT_SHL: 1240 case SLJIT_LSHR: 1241 case SLJIT_ASHR: 1242 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1243 if (src2 & SLJIT_IMM) 1244 src2w &= 0x1f; 1245 #else 1246 if (src2 & SLJIT_IMM) { 1247 if (op & SLJIT_INT_OP) 1248 src2w &= 0x1f; 1249 else 1250 src2w &= 0x3f; 1251 } 1252 #endif 1253 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1254 } 1255 1256 return SLJIT_SUCCESS; 1257 1258 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1259 # undef flags 1260 #endif 1261 } 1262 1263 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_register_index(sljit_si reg) 1264 { 1265 check_sljit_get_register_index(reg); 1266 return reg_map[reg]; 1267 } 1268 1269 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_float_register_index(sljit_si reg) 1270 { 1271 check_sljit_get_float_register_index(reg); 1272 return reg << 1; 1273 } 1274 1275 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_custom(struct sljit_compiler *compiler, 1276 void *instruction, sljit_si size) 1277 { 1278 CHECK_ERROR(); 1279 check_sljit_emit_op_custom(compiler, instruction, size); 1280 SLJIT_ASSERT(size == 4); 1281 1282 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS); 1283 } 1284 1285 /* --------------------------------------------------------------------- */ 1286 /* Floating point operators */ 1287 /* --------------------------------------------------------------------- */ 1288 1289 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_is_fpu_available(void) 1290 { 1291 #ifdef SLJIT_IS_FPU_AVAILABLE 1292 return SLJIT_IS_FPU_AVAILABLE; 1293 #elif defined(__GNUC__) 1294 sljit_sw fir; 1295 asm ("cfc1 %0, $0" : "=r"(fir)); 1296 return (fir >> 22) & 0x1; 1297 #else 1298 #error "FIR check is not implemented for this architecture" 1299 #endif 1300 } 1301 1302 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_SINGLE_OP) >> 7)) 1303 #define FMT(op) (((op & SLJIT_SINGLE_OP) ^ SLJIT_SINGLE_OP) << (21 - 8)) 1304 1305 static SLJIT_INLINE sljit_si sljit_emit_fop1_convw_fromd(struct sljit_compiler *compiler, sljit_si op, 1306 sljit_si dst, sljit_sw dstw, 1307 sljit_si src, sljit_sw srcw) 1308 { 1309 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1310 # define flags 0 1311 #else 1312 sljit_si flags = (GET_OPCODE(op) == SLJIT_CONVW_FROMD) << 21; 1313 #endif 1314 1315 if (src & SLJIT_MEM) { 1316 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw)); 1317 src = TMP_FREG1; 1318 } 1319 else 1320 src <<= 1; 1321 1322 FAIL_IF(push_inst(compiler, (TRUNC_W_S ^ (flags >> 19)) | FMT(op) | FS(src) | FD(TMP_FREG1), MOVABLE_INS)); 1323 1324 if (dst == SLJIT_UNUSED) 1325 return SLJIT_SUCCESS; 1326 1327 if (FAST_IS_REG(dst)) 1328 return push_inst(compiler, MFC1 | flags | T(dst) | FS(TMP_FREG1), MOVABLE_INS); 1329 1330 /* Store the integer value from a VFP register. */ 1331 return emit_op_mem2(compiler, flags ? DOUBLE_DATA : SINGLE_DATA, TMP_FREG1, dst, dstw, 0, 0); 1332 1333 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1334 # undef is_long 1335 #endif 1336 } 1337 1338 static SLJIT_INLINE sljit_si sljit_emit_fop1_convd_fromw(struct sljit_compiler *compiler, sljit_si op, 1339 sljit_si dst, sljit_sw dstw, 1340 sljit_si src, sljit_sw srcw) 1341 { 1342 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1343 # define flags 0 1344 #else 1345 sljit_si flags = (GET_OPCODE(op) == SLJIT_CONVD_FROMW) << 21; 1346 #endif 1347 1348 sljit_si dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1; 1349 1350 if (FAST_IS_REG(src)) 1351 FAIL_IF(push_inst(compiler, MTC1 | flags | T(src) | FS(TMP_FREG1), MOVABLE_INS)); 1352 else if (src & SLJIT_MEM) { 1353 /* Load the integer value into a VFP register. */ 1354 FAIL_IF(emit_op_mem2(compiler, ((flags) ? DOUBLE_DATA : SINGLE_DATA) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw)); 1355 } 1356 else { 1357 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) 1358 if (GET_OPCODE(op) == SLJIT_CONVD_FROMI) 1359 srcw = (sljit_si)srcw; 1360 #endif 1361 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw)); 1362 FAIL_IF(push_inst(compiler, MTC1 | flags | T(TMP_REG1) | FS(TMP_FREG1), MOVABLE_INS)); 1363 } 1364 1365 FAIL_IF(push_inst(compiler, CVT_S_S | flags | (4 << 21) | (((op & SLJIT_SINGLE_OP) ^ SLJIT_SINGLE_OP) >> 8) | FS(TMP_FREG1) | FD(dst_r), MOVABLE_INS)); 1366 1367 if (dst & SLJIT_MEM) 1368 return emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, 0, 0); 1369 return SLJIT_SUCCESS; 1370 1371 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1372 # undef flags 1373 #endif 1374 } 1375 1376 static SLJIT_INLINE sljit_si sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_si op, 1377 sljit_si src1, sljit_sw src1w, 1378 sljit_si src2, sljit_sw src2w) 1379 { 1380 if (src1 & SLJIT_MEM) { 1381 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w)); 1382 src1 = TMP_FREG1; 1383 } 1384 else 1385 src1 <<= 1; 1386 1387 if (src2 & SLJIT_MEM) { 1388 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0)); 1389 src2 = TMP_FREG2; 1390 } 1391 else 1392 src2 <<= 1; 1393 1394 /* src2 and src1 are swapped. */ 1395 if (op & SLJIT_SET_E) { 1396 FAIL_IF(push_inst(compiler, C_UEQ_S | FMT(op) | FT(src2) | FS(src1), UNMOVABLE_INS)); 1397 FAIL_IF(push_inst(compiler, CFC1 | TA(EQUAL_FLAG) | DA(FCSR_REG), EQUAL_FLAG)); 1398 FAIL_IF(push_inst(compiler, SRL | TA(EQUAL_FLAG) | DA(EQUAL_FLAG) | SH_IMM(23), EQUAL_FLAG)); 1399 FAIL_IF(push_inst(compiler, ANDI | SA(EQUAL_FLAG) | TA(EQUAL_FLAG) | IMM(1), EQUAL_FLAG)); 1400 } 1401 if (op & SLJIT_SET_S) { 1402 /* Mixing the instructions for the two checks. */ 1403 FAIL_IF(push_inst(compiler, C_ULT_S | FMT(op) | FT(src2) | FS(src1), UNMOVABLE_INS)); 1404 FAIL_IF(push_inst(compiler, CFC1 | TA(ULESS_FLAG) | DA(FCSR_REG), ULESS_FLAG)); 1405 FAIL_IF(push_inst(compiler, C_ULT_S | FMT(op) | FT(src1) | FS(src2), UNMOVABLE_INS)); 1406 FAIL_IF(push_inst(compiler, SRL | TA(ULESS_FLAG) | DA(ULESS_FLAG) | SH_IMM(23), ULESS_FLAG)); 1407 FAIL_IF(push_inst(compiler, ANDI | SA(ULESS_FLAG) | TA(ULESS_FLAG) | IMM(1), ULESS_FLAG)); 1408 FAIL_IF(push_inst(compiler, CFC1 | TA(UGREATER_FLAG) | DA(FCSR_REG), UGREATER_FLAG)); 1409 FAIL_IF(push_inst(compiler, SRL | TA(UGREATER_FLAG) | DA(UGREATER_FLAG) | SH_IMM(23), UGREATER_FLAG)); 1410 FAIL_IF(push_inst(compiler, ANDI | SA(UGREATER_FLAG) | TA(UGREATER_FLAG) | IMM(1), UGREATER_FLAG)); 1411 } 1412 return push_inst(compiler, C_UN_S | FMT(op) | FT(src2) | FS(src1), FCSR_FCC); 1413 } 1414 1415 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop1(struct sljit_compiler *compiler, sljit_si op, 1416 sljit_si dst, sljit_sw dstw, 1417 sljit_si src, sljit_sw srcw) 1418 { 1419 sljit_si dst_r; 1420 1421 CHECK_ERROR(); 1422 compiler->cache_arg = 0; 1423 compiler->cache_argw = 0; 1424 1425 SLJIT_COMPILE_ASSERT((SLJIT_SINGLE_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error); 1426 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw); 1427 1428 if (GET_OPCODE(op) == SLJIT_CONVD_FROMS) 1429 op ^= SLJIT_SINGLE_OP; 1430 1431 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1; 1432 1433 if (src & SLJIT_MEM) { 1434 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, dst, dstw)); 1435 src = dst_r; 1436 } 1437 else 1438 src <<= 1; 1439 1440 switch (GET_OPCODE(op)) { 1441 case SLJIT_MOVD: 1442 if (src != dst_r) { 1443 if (dst_r != TMP_FREG1) 1444 FAIL_IF(push_inst(compiler, MOV_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS)); 1445 else 1446 dst_r = src; 1447 } 1448 break; 1449 case SLJIT_NEGD: 1450 FAIL_IF(push_inst(compiler, NEG_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS)); 1451 break; 1452 case SLJIT_ABSD: 1453 FAIL_IF(push_inst(compiler, ABS_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS)); 1454 break; 1455 case SLJIT_CONVD_FROMS: 1456 FAIL_IF(push_inst(compiler, CVT_S_S | ((op & SLJIT_SINGLE_OP) ? 1 : (1 << 21)) | FS(src) | FD(dst_r), MOVABLE_INS)); 1457 op ^= SLJIT_SINGLE_OP; 1458 break; 1459 } 1460 1461 if (dst & SLJIT_MEM) 1462 return emit_op_mem2(compiler, FLOAT_DATA(op), dst_r, dst, dstw, 0, 0); 1463 return SLJIT_SUCCESS; 1464 } 1465 1466 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop2(struct sljit_compiler *compiler, sljit_si op, 1467 sljit_si dst, sljit_sw dstw, 1468 sljit_si src1, sljit_sw src1w, 1469 sljit_si src2, sljit_sw src2w) 1470 { 1471 sljit_si dst_r, flags = 0; 1472 1473 CHECK_ERROR(); 1474 check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w); 1475 ADJUST_LOCAL_OFFSET(dst, dstw); 1476 ADJUST_LOCAL_OFFSET(src1, src1w); 1477 ADJUST_LOCAL_OFFSET(src2, src2w); 1478 1479 compiler->cache_arg = 0; 1480 compiler->cache_argw = 0; 1481 1482 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG2; 1483 1484 if (src1 & SLJIT_MEM) { 1485 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) { 1486 FAIL_IF(compiler->error); 1487 src1 = TMP_FREG1; 1488 } else 1489 flags |= SLOW_SRC1; 1490 } 1491 else 1492 src1 <<= 1; 1493 1494 if (src2 & SLJIT_MEM) { 1495 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) { 1496 FAIL_IF(compiler->error); 1497 src2 = TMP_FREG2; 1498 } else 1499 flags |= SLOW_SRC2; 1500 } 1501 else 1502 src2 <<= 1; 1503 1504 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 1505 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 1506 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w)); 1507 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw)); 1508 } 1509 else { 1510 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w)); 1511 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw)); 1512 } 1513 } 1514 else if (flags & SLOW_SRC1) 1515 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw)); 1516 else if (flags & SLOW_SRC2) 1517 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw)); 1518 1519 if (flags & SLOW_SRC1) 1520 src1 = TMP_FREG1; 1521 if (flags & SLOW_SRC2) 1522 src2 = TMP_FREG2; 1523 1524 switch (GET_OPCODE(op)) { 1525 case SLJIT_ADDD: 1526 FAIL_IF(push_inst(compiler, ADD_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS)); 1527 break; 1528 1529 case SLJIT_SUBD: 1530 FAIL_IF(push_inst(compiler, SUB_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS)); 1531 break; 1532 1533 case SLJIT_MULD: 1534 FAIL_IF(push_inst(compiler, MUL_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS)); 1535 break; 1536 1537 case SLJIT_DIVD: 1538 FAIL_IF(push_inst(compiler, DIV_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS)); 1539 break; 1540 } 1541 1542 if (dst_r == TMP_FREG2) 1543 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0)); 1544 1545 return SLJIT_SUCCESS; 1546 } 1547 1548 /* --------------------------------------------------------------------- */ 1549 /* Other instructions */ 1550 /* --------------------------------------------------------------------- */ 1551 1552 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw) 1553 { 1554 CHECK_ERROR(); 1555 check_sljit_emit_fast_enter(compiler, dst, dstw); 1556 ADJUST_LOCAL_OFFSET(dst, dstw); 1557 1558 /* For UNUSED dst. Uncommon, but possible. */ 1559 if (dst == SLJIT_UNUSED) 1560 return SLJIT_SUCCESS; 1561 1562 if (FAST_IS_REG(dst)) 1563 return push_inst(compiler, ADDU_W | SA(RETURN_ADDR_REG) | TA(0) | D(dst), DR(dst)); 1564 1565 /* Memory. */ 1566 return emit_op_mem(compiler, WORD_DATA, RETURN_ADDR_REG, dst, dstw); 1567 } 1568 1569 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_si src, sljit_sw srcw) 1570 { 1571 CHECK_ERROR(); 1572 check_sljit_emit_fast_return(compiler, src, srcw); 1573 ADJUST_LOCAL_OFFSET(src, srcw); 1574 1575 if (FAST_IS_REG(src)) 1576 FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | DA(RETURN_ADDR_REG), RETURN_ADDR_REG)); 1577 else if (src & SLJIT_MEM) 1578 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, RETURN_ADDR_REG, src, srcw)); 1579 else if (src & SLJIT_IMM) 1580 FAIL_IF(load_immediate(compiler, RETURN_ADDR_REG, srcw)); 1581 1582 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1583 return push_inst(compiler, NOP, UNMOVABLE_INS); 1584 } 1585 1586 /* --------------------------------------------------------------------- */ 1587 /* Conditional instructions */ 1588 /* --------------------------------------------------------------------- */ 1589 1590 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler) 1591 { 1592 struct sljit_label *label; 1593 1594 CHECK_ERROR_PTR(); 1595 check_sljit_emit_label(compiler); 1596 1597 if (compiler->last_label && compiler->last_label->size == compiler->size) 1598 return compiler->last_label; 1599 1600 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label)); 1601 PTR_FAIL_IF(!label); 1602 set_label(label, compiler); 1603 compiler->delay_slot = UNMOVABLE_INS; 1604 return label; 1605 } 1606 1607 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1608 #define JUMP_LENGTH 4 1609 #else 1610 #define JUMP_LENGTH 8 1611 #endif 1612 1613 #define BR_Z(src) \ 1614 inst = BEQ | SA(src) | TA(0) | JUMP_LENGTH; \ 1615 flags = IS_BIT26_COND; \ 1616 delay_check = src; 1617 1618 #define BR_NZ(src) \ 1619 inst = BNE | SA(src) | TA(0) | JUMP_LENGTH; \ 1620 flags = IS_BIT26_COND; \ 1621 delay_check = src; 1622 1623 #define BR_T() \ 1624 inst = BC1T | JUMP_LENGTH; \ 1625 flags = IS_BIT16_COND; \ 1626 delay_check = FCSR_FCC; 1627 1628 #define BR_F() \ 1629 inst = BC1F | JUMP_LENGTH; \ 1630 flags = IS_BIT16_COND; \ 1631 delay_check = FCSR_FCC; 1632 1633 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_si type) 1634 { 1635 struct sljit_jump *jump; 1636 sljit_ins inst; 1637 sljit_si flags = 0; 1638 sljit_si delay_check = UNMOVABLE_INS; 1639 1640 CHECK_ERROR_PTR(); 1641 check_sljit_emit_jump(compiler, type); 1642 1643 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1644 PTR_FAIL_IF(!jump); 1645 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1646 type &= 0xff; 1647 1648 switch (type) { 1649 case SLJIT_C_EQUAL: 1650 case SLJIT_C_FLOAT_NOT_EQUAL: 1651 BR_NZ(EQUAL_FLAG); 1652 break; 1653 case SLJIT_C_NOT_EQUAL: 1654 case SLJIT_C_FLOAT_EQUAL: 1655 BR_Z(EQUAL_FLAG); 1656 break; 1657 case SLJIT_C_LESS: 1658 case SLJIT_C_FLOAT_LESS: 1659 BR_Z(ULESS_FLAG); 1660 break; 1661 case SLJIT_C_GREATER_EQUAL: 1662 case SLJIT_C_FLOAT_GREATER_EQUAL: 1663 BR_NZ(ULESS_FLAG); 1664 break; 1665 case SLJIT_C_GREATER: 1666 case SLJIT_C_FLOAT_GREATER: 1667 BR_Z(UGREATER_FLAG); 1668 break; 1669 case SLJIT_C_LESS_EQUAL: 1670 case SLJIT_C_FLOAT_LESS_EQUAL: 1671 BR_NZ(UGREATER_FLAG); 1672 break; 1673 case SLJIT_C_SIG_LESS: 1674 BR_Z(LESS_FLAG); 1675 break; 1676 case SLJIT_C_SIG_GREATER_EQUAL: 1677 BR_NZ(LESS_FLAG); 1678 break; 1679 case SLJIT_C_SIG_GREATER: 1680 BR_Z(GREATER_FLAG); 1681 break; 1682 case SLJIT_C_SIG_LESS_EQUAL: 1683 BR_NZ(GREATER_FLAG); 1684 break; 1685 case SLJIT_C_OVERFLOW: 1686 case SLJIT_C_MUL_OVERFLOW: 1687 BR_Z(OVERFLOW_FLAG); 1688 break; 1689 case SLJIT_C_NOT_OVERFLOW: 1690 case SLJIT_C_MUL_NOT_OVERFLOW: 1691 BR_NZ(OVERFLOW_FLAG); 1692 break; 1693 case SLJIT_C_FLOAT_UNORDERED: 1694 BR_F(); 1695 break; 1696 case SLJIT_C_FLOAT_ORDERED: 1697 BR_T(); 1698 break; 1699 default: 1700 /* Not conditional branch. */ 1701 inst = 0; 1702 break; 1703 } 1704 1705 jump->flags |= flags; 1706 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != delay_check)) 1707 jump->flags |= IS_MOVABLE; 1708 1709 if (inst) 1710 PTR_FAIL_IF(push_inst(compiler, inst, UNMOVABLE_INS)); 1711 1712 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1713 if (type <= SLJIT_JUMP) { 1714 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); 1715 jump->addr = compiler->size; 1716 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1717 } else { 1718 SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG2); 1719 /* Cannot be optimized out if type is >= CALL0. */ 1720 jump->flags |= IS_JAL | (type >= SLJIT_CALL0 ? IS_CALL : 0); 1721 PTR_FAIL_IF(push_inst(compiler, JALR | S(TMP_REG2) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1722 jump->addr = compiler->size; 1723 /* A NOP if type < CALL1. */ 1724 PTR_FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_R0) | TA(0) | DA(4), UNMOVABLE_INS)); 1725 } 1726 return jump; 1727 } 1728 1729 #define RESOLVE_IMM1() \ 1730 if (src1 & SLJIT_IMM) { \ 1731 if (src1w) { \ 1732 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); \ 1733 src1 = TMP_REG1; \ 1734 } \ 1735 else \ 1736 src1 = 0; \ 1737 } 1738 1739 #define RESOLVE_IMM2() \ 1740 if (src2 & SLJIT_IMM) { \ 1741 if (src2w) { \ 1742 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG2), src2w)); \ 1743 src2 = TMP_REG2; \ 1744 } \ 1745 else \ 1746 src2 = 0; \ 1747 } 1748 1749 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, sljit_si type, 1750 sljit_si src1, sljit_sw src1w, 1751 sljit_si src2, sljit_sw src2w) 1752 { 1753 struct sljit_jump *jump; 1754 sljit_si flags; 1755 sljit_ins inst; 1756 1757 CHECK_ERROR_PTR(); 1758 check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w); 1759 ADJUST_LOCAL_OFFSET(src1, src1w); 1760 ADJUST_LOCAL_OFFSET(src2, src2w); 1761 1762 compiler->cache_arg = 0; 1763 compiler->cache_argw = 0; 1764 flags = ((type & SLJIT_INT_OP) ? INT_DATA : WORD_DATA) | LOAD_DATA; 1765 if (src1 & SLJIT_MEM) { 1766 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG1), src1, src1w, src2, src2w)); 1767 src1 = TMP_REG1; 1768 } 1769 if (src2 & SLJIT_MEM) { 1770 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG2), src2, src2w, 0, 0)); 1771 src2 = TMP_REG2; 1772 } 1773 1774 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1775 PTR_FAIL_IF(!jump); 1776 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1777 type &= 0xff; 1778 1779 if (type <= SLJIT_C_NOT_EQUAL) { 1780 RESOLVE_IMM1(); 1781 RESOLVE_IMM2(); 1782 jump->flags |= IS_BIT26_COND; 1783 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != DR(src1) && compiler->delay_slot != DR(src2))) 1784 jump->flags |= IS_MOVABLE; 1785 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_C_EQUAL ? BNE : BEQ) | S(src1) | T(src2) | JUMP_LENGTH, UNMOVABLE_INS)); 1786 } 1787 else if (type >= SLJIT_C_SIG_LESS && (((src1 & SLJIT_IMM) && (src1w == 0)) || ((src2 & SLJIT_IMM) && (src2w == 0)))) { 1788 inst = NOP; 1789 if ((src1 & SLJIT_IMM) && (src1w == 0)) { 1790 RESOLVE_IMM2(); 1791 switch (type) { 1792 case SLJIT_C_SIG_LESS: 1793 inst = BLEZ; 1794 jump->flags |= IS_BIT26_COND; 1795 break; 1796 case SLJIT_C_SIG_GREATER_EQUAL: 1797 inst = BGTZ; 1798 jump->flags |= IS_BIT26_COND; 1799 break; 1800 case SLJIT_C_SIG_GREATER: 1801 inst = BGEZ; 1802 jump->flags |= IS_BIT16_COND; 1803 break; 1804 case SLJIT_C_SIG_LESS_EQUAL: 1805 inst = BLTZ; 1806 jump->flags |= IS_BIT16_COND; 1807 break; 1808 } 1809 src1 = src2; 1810 } 1811 else { 1812 RESOLVE_IMM1(); 1813 switch (type) { 1814 case SLJIT_C_SIG_LESS: 1815 inst = BGEZ; 1816 jump->flags |= IS_BIT16_COND; 1817 break; 1818 case SLJIT_C_SIG_GREATER_EQUAL: 1819 inst = BLTZ; 1820 jump->flags |= IS_BIT16_COND; 1821 break; 1822 case SLJIT_C_SIG_GREATER: 1823 inst = BLEZ; 1824 jump->flags |= IS_BIT26_COND; 1825 break; 1826 case SLJIT_C_SIG_LESS_EQUAL: 1827 inst = BGTZ; 1828 jump->flags |= IS_BIT26_COND; 1829 break; 1830 } 1831 } 1832 PTR_FAIL_IF(push_inst(compiler, inst | S(src1) | JUMP_LENGTH, UNMOVABLE_INS)); 1833 } 1834 else { 1835 if (type == SLJIT_C_LESS || type == SLJIT_C_GREATER_EQUAL || type == SLJIT_C_SIG_LESS || type == SLJIT_C_SIG_GREATER_EQUAL) { 1836 RESOLVE_IMM1(); 1837 if ((src2 & SLJIT_IMM) && src2w <= SIMM_MAX && src2w >= SIMM_MIN) 1838 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTIU : SLTI) | S(src1) | T(TMP_REG1) | IMM(src2w), DR(TMP_REG1))); 1839 else { 1840 RESOLVE_IMM2(); 1841 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTU : SLT) | S(src1) | T(src2) | D(TMP_REG1), DR(TMP_REG1))); 1842 } 1843 type = (type == SLJIT_C_LESS || type == SLJIT_C_SIG_LESS) ? SLJIT_C_NOT_EQUAL : SLJIT_C_EQUAL; 1844 } 1845 else { 1846 RESOLVE_IMM2(); 1847 if ((src1 & SLJIT_IMM) && src1w <= SIMM_MAX && src1w >= SIMM_MIN) 1848 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTIU : SLTI) | S(src2) | T(TMP_REG1) | IMM(src1w), DR(TMP_REG1))); 1849 else { 1850 RESOLVE_IMM1(); 1851 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTU : SLT) | S(src2) | T(src1) | D(TMP_REG1), DR(TMP_REG1))); 1852 } 1853 type = (type == SLJIT_C_GREATER || type == SLJIT_C_SIG_GREATER) ? SLJIT_C_NOT_EQUAL : SLJIT_C_EQUAL; 1854 } 1855 1856 jump->flags |= IS_BIT26_COND; 1857 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_C_EQUAL ? BNE : BEQ) | S(TMP_REG1) | TA(0) | JUMP_LENGTH, UNMOVABLE_INS)); 1858 } 1859 1860 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1861 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); 1862 jump->addr = compiler->size; 1863 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1864 return jump; 1865 } 1866 1867 #undef RESOLVE_IMM1 1868 #undef RESOLVE_IMM2 1869 1870 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_fcmp(struct sljit_compiler *compiler, sljit_si type, 1871 sljit_si src1, sljit_sw src1w, 1872 sljit_si src2, sljit_sw src2w) 1873 { 1874 struct sljit_jump *jump; 1875 sljit_ins inst; 1876 sljit_si if_true; 1877 1878 CHECK_ERROR_PTR(); 1879 check_sljit_emit_fcmp(compiler, type, src1, src1w, src2, src2w); 1880 1881 compiler->cache_arg = 0; 1882 compiler->cache_argw = 0; 1883 1884 if (src1 & SLJIT_MEM) { 1885 PTR_FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(type) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w)); 1886 src1 = TMP_FREG1; 1887 } 1888 else 1889 src1 <<= 1; 1890 1891 if (src2 & SLJIT_MEM) { 1892 PTR_FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(type) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0)); 1893 src2 = TMP_FREG2; 1894 } 1895 else 1896 src2 <<= 1; 1897 1898 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1899 PTR_FAIL_IF(!jump); 1900 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1901 jump->flags |= IS_BIT16_COND; 1902 1903 switch (type & 0xff) { 1904 case SLJIT_C_FLOAT_EQUAL: 1905 inst = C_UEQ_S; 1906 if_true = 1; 1907 break; 1908 case SLJIT_C_FLOAT_NOT_EQUAL: 1909 inst = C_UEQ_S; 1910 if_true = 0; 1911 break; 1912 case SLJIT_C_FLOAT_LESS: 1913 inst = C_ULT_S; 1914 if_true = 1; 1915 break; 1916 case SLJIT_C_FLOAT_GREATER_EQUAL: 1917 inst = C_ULT_S; 1918 if_true = 0; 1919 break; 1920 case SLJIT_C_FLOAT_GREATER: 1921 inst = C_ULE_S; 1922 if_true = 0; 1923 break; 1924 case SLJIT_C_FLOAT_LESS_EQUAL: 1925 inst = C_ULE_S; 1926 if_true = 1; 1927 break; 1928 case SLJIT_C_FLOAT_UNORDERED: 1929 inst = C_UN_S; 1930 if_true = 1; 1931 break; 1932 case SLJIT_C_FLOAT_ORDERED: 1933 default: /* Make compilers happy. */ 1934 inst = C_UN_S; 1935 if_true = 0; 1936 break; 1937 } 1938 1939 PTR_FAIL_IF(push_inst(compiler, inst | FMT(type) | FT(src2) | FS(src1), UNMOVABLE_INS)); 1940 /* Intentionally the other opcode. */ 1941 PTR_FAIL_IF(push_inst(compiler, (if_true ? BC1F : BC1T) | JUMP_LENGTH, UNMOVABLE_INS)); 1942 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1943 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); 1944 jump->addr = compiler->size; 1945 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1946 return jump; 1947 } 1948 1949 #undef JUMP_LENGTH 1950 #undef BR_Z 1951 #undef BR_NZ 1952 #undef BR_T 1953 #undef BR_F 1954 1955 #undef FLOAT_DATA 1956 #undef FMT 1957 1958 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_ijump(struct sljit_compiler *compiler, sljit_si type, sljit_si src, sljit_sw srcw) 1959 { 1960 sljit_si src_r = TMP_REG2; 1961 struct sljit_jump *jump = NULL; 1962 1963 CHECK_ERROR(); 1964 check_sljit_emit_ijump(compiler, type, src, srcw); 1965 ADJUST_LOCAL_OFFSET(src, srcw); 1966 1967 if (FAST_IS_REG(src)) { 1968 if (DR(src) != 4) 1969 src_r = src; 1970 else 1971 FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); 1972 } 1973 1974 if (type >= SLJIT_CALL0) { 1975 SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG2); 1976 if (src & (SLJIT_IMM | SLJIT_MEM)) { 1977 if (src & SLJIT_IMM) 1978 FAIL_IF(load_immediate(compiler, DR(PIC_ADDR_REG), srcw)); 1979 else { 1980 SLJIT_ASSERT(src_r == TMP_REG2 && (src & SLJIT_MEM)); 1981 FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw)); 1982 } 1983 FAIL_IF(push_inst(compiler, JALR | S(PIC_ADDR_REG) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1984 /* We need an extra instruction in any case. */ 1985 return push_inst(compiler, ADDU_W | S(SLJIT_R0) | TA(0) | DA(4), UNMOVABLE_INS); 1986 } 1987 1988 /* Register input. */ 1989 if (type >= SLJIT_CALL1) 1990 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_R0) | TA(0) | DA(4), 4)); 1991 FAIL_IF(push_inst(compiler, JALR | S(src_r) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1992 return push_inst(compiler, ADDU_W | S(src_r) | TA(0) | D(PIC_ADDR_REG), UNMOVABLE_INS); 1993 } 1994 1995 if (src & SLJIT_IMM) { 1996 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1997 FAIL_IF(!jump); 1998 set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_JAL : 0)); 1999 jump->u.target = srcw; 2000 2001 if (compiler->delay_slot != UNMOVABLE_INS) 2002 jump->flags |= IS_MOVABLE; 2003 2004 FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 2005 } 2006 else if (src & SLJIT_MEM) 2007 FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw)); 2008 2009 FAIL_IF(push_inst(compiler, JR | S(src_r), UNMOVABLE_INS)); 2010 if (jump) 2011 jump->addr = compiler->size; 2012 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 2013 return SLJIT_SUCCESS; 2014 } 2015 2016 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_si op, 2017 sljit_si dst, sljit_sw dstw, 2018 sljit_si src, sljit_sw srcw, 2019 sljit_si type) 2020 { 2021 sljit_si sugg_dst_ar, dst_ar; 2022 sljit_si flags = GET_ALL_FLAGS(op); 2023 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 2024 # define mem_type WORD_DATA 2025 #else 2026 sljit_si mem_type = (op & SLJIT_INT_OP) ? (INT_DATA | SIGNED_DATA) : WORD_DATA; 2027 #endif 2028 2029 CHECK_ERROR(); 2030 check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type); 2031 ADJUST_LOCAL_OFFSET(dst, dstw); 2032 2033 if (dst == SLJIT_UNUSED) 2034 return SLJIT_SUCCESS; 2035 2036 op = GET_OPCODE(op); 2037 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 2038 if (op == SLJIT_MOV_SI || op == SLJIT_MOV_UI) 2039 mem_type = INT_DATA | SIGNED_DATA; 2040 #endif 2041 sugg_dst_ar = DR((op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2); 2042 2043 compiler->cache_arg = 0; 2044 compiler->cache_argw = 0; 2045 if (op >= SLJIT_ADD && (src & SLJIT_MEM)) { 2046 ADJUST_LOCAL_OFFSET(src, srcw); 2047 FAIL_IF(emit_op_mem2(compiler, mem_type | LOAD_DATA, DR(TMP_REG1), src, srcw, dst, dstw)); 2048 src = TMP_REG1; 2049 srcw = 0; 2050 } 2051 2052 switch (type) { 2053 case SLJIT_C_EQUAL: 2054 case SLJIT_C_NOT_EQUAL: 2055 FAIL_IF(push_inst(compiler, SLTIU | SA(EQUAL_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); 2056 dst_ar = sugg_dst_ar; 2057 break; 2058 case SLJIT_C_LESS: 2059 case SLJIT_C_GREATER_EQUAL: 2060 case SLJIT_C_FLOAT_LESS: 2061 case SLJIT_C_FLOAT_GREATER_EQUAL: 2062 dst_ar = ULESS_FLAG; 2063 break; 2064 case SLJIT_C_GREATER: 2065 case SLJIT_C_LESS_EQUAL: 2066 case SLJIT_C_FLOAT_GREATER: 2067 case SLJIT_C_FLOAT_LESS_EQUAL: 2068 dst_ar = UGREATER_FLAG; 2069 break; 2070 case SLJIT_C_SIG_LESS: 2071 case SLJIT_C_SIG_GREATER_EQUAL: 2072 dst_ar = LESS_FLAG; 2073 break; 2074 case SLJIT_C_SIG_GREATER: 2075 case SLJIT_C_SIG_LESS_EQUAL: 2076 dst_ar = GREATER_FLAG; 2077 break; 2078 case SLJIT_C_OVERFLOW: 2079 case SLJIT_C_NOT_OVERFLOW: 2080 dst_ar = OVERFLOW_FLAG; 2081 break; 2082 case SLJIT_C_MUL_OVERFLOW: 2083 case SLJIT_C_MUL_NOT_OVERFLOW: 2084 FAIL_IF(push_inst(compiler, SLTIU | SA(OVERFLOW_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); 2085 dst_ar = sugg_dst_ar; 2086 type ^= 0x1; /* Flip type bit for the XORI below. */ 2087 break; 2088 case SLJIT_C_FLOAT_EQUAL: 2089 case SLJIT_C_FLOAT_NOT_EQUAL: 2090 dst_ar = EQUAL_FLAG; 2091 break; 2092 2093 case SLJIT_C_FLOAT_UNORDERED: 2094 case SLJIT_C_FLOAT_ORDERED: 2095 FAIL_IF(push_inst(compiler, CFC1 | TA(sugg_dst_ar) | DA(FCSR_REG), sugg_dst_ar)); 2096 FAIL_IF(push_inst(compiler, SRL | TA(sugg_dst_ar) | DA(sugg_dst_ar) | SH_IMM(23), sugg_dst_ar)); 2097 FAIL_IF(push_inst(compiler, ANDI | SA(sugg_dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); 2098 dst_ar = sugg_dst_ar; 2099 break; 2100 2101 default: 2102 SLJIT_ASSERT_STOP(); 2103 dst_ar = sugg_dst_ar; 2104 break; 2105 } 2106 2107 if (type & 0x1) { 2108 FAIL_IF(push_inst(compiler, XORI | SA(dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); 2109 dst_ar = sugg_dst_ar; 2110 } 2111 2112 if (op >= SLJIT_ADD) { 2113 if (DR(TMP_REG2) != dst_ar) 2114 FAIL_IF(push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); 2115 return emit_op(compiler, op | flags, mem_type | CUMULATIVE_OP | LOGICAL_OP | IMM_OP | ALT_KEEP_CACHE, dst, dstw, src, srcw, TMP_REG2, 0); 2116 } 2117 2118 if (dst & SLJIT_MEM) 2119 return emit_op_mem(compiler, mem_type, dst_ar, dst, dstw); 2120 2121 if (sugg_dst_ar != dst_ar) 2122 return push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | DA(sugg_dst_ar), sugg_dst_ar); 2123 return SLJIT_SUCCESS; 2124 2125 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 2126 # undef mem_type 2127 #endif 2128 } 2129 2130 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw, sljit_sw init_value) 2131 { 2132 struct sljit_const *const_; 2133 sljit_si reg; 2134 2135 CHECK_ERROR_PTR(); 2136 check_sljit_emit_const(compiler, dst, dstw, init_value); 2137 ADJUST_LOCAL_OFFSET(dst, dstw); 2138 2139 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const)); 2140 PTR_FAIL_IF(!const_); 2141 set_const(const_, compiler); 2142 2143 reg = SLOW_IS_REG(dst) ? dst : TMP_REG2; 2144 2145 PTR_FAIL_IF(emit_const(compiler, reg, init_value)); 2146 2147 if (dst & SLJIT_MEM) 2148 PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0)); 2149 return const_; 2150 } 2151
