1 /* 2 * Stack-less Just-In-Time compiler 3 * 4 * Copyright 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 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_u32 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 3 61 #define OTHER_FLAG 1 62 63 #define TMP_FREG1 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1) 64 #define TMP_FREG2 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2) 65 66 static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 5] = { 67 0, 2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 24, 23, 22, 21, 20, 19, 18, 17, 16, 29, 4, 25, 31 68 }; 69 70 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 71 72 static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = { 73 0, 0, 14, 2, 4, 6, 8, 12, 10 74 }; 75 76 #else 77 78 static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = { 79 0, 0, 13, 14, 15, 16, 17, 12, 18 80 }; 81 82 #endif 83 84 /* --------------------------------------------------------------------- */ 85 /* Instrucion forms */ 86 /* --------------------------------------------------------------------- */ 87 88 #define S(s) (reg_map[s] << 21) 89 #define T(t) (reg_map[t] << 16) 90 #define D(d) (reg_map[d] << 11) 91 #define FT(t) (freg_map[t] << 16) 92 #define FS(s) (freg_map[s] << 11) 93 #define FD(d) (freg_map[d] << 6) 94 /* Absolute registers. */ 95 #define SA(s) ((s) << 21) 96 #define TA(t) ((t) << 16) 97 #define DA(d) ((d) << 11) 98 #define IMM(imm) ((imm) & 0xffff) 99 #define SH_IMM(imm) ((imm) << 6) 100 101 #define DR(dr) (reg_map[dr]) 102 #define FR(dr) (freg_map[dr]) 103 #define HI(opcode) ((opcode) << 26) 104 #define LO(opcode) (opcode) 105 /* S = (16 << 21) D = (17 << 21) */ 106 #define FMT_S (16 << 21) 107 #define FMT_D (17 << 21) 108 109 #define ABS_S (HI(17) | FMT_S | LO(5)) 110 #define ADD_S (HI(17) | FMT_S | LO(0)) 111 #define ADDIU (HI(9)) 112 #define ADDU (HI(0) | LO(33)) 113 #define AND (HI(0) | LO(36)) 114 #define ANDI (HI(12)) 115 #define B (HI(4)) 116 #define BAL (HI(1) | (17 << 16)) 117 #define BC1F (HI(17) | (8 << 21)) 118 #define BC1T (HI(17) | (8 << 21) | (1 << 16)) 119 #define BEQ (HI(4)) 120 #define BGEZ (HI(1) | (1 << 16)) 121 #define BGTZ (HI(7)) 122 #define BLEZ (HI(6)) 123 #define BLTZ (HI(1) | (0 << 16)) 124 #define BNE (HI(5)) 125 #define BREAK (HI(0) | LO(13)) 126 #define CFC1 (HI(17) | (2 << 21)) 127 #define C_UN_S (HI(17) | FMT_S | LO(49)) 128 #define C_UEQ_S (HI(17) | FMT_S | LO(51)) 129 #define C_ULE_S (HI(17) | FMT_S | LO(55)) 130 #define C_ULT_S (HI(17) | FMT_S | LO(53)) 131 #define CVT_S_S (HI(17) | FMT_S | LO(32)) 132 #define DADDIU (HI(25)) 133 #define DADDU (HI(0) | LO(45)) 134 #define DDIV (HI(0) | LO(30)) 135 #define DDIVU (HI(0) | LO(31)) 136 #define DIV (HI(0) | LO(26)) 137 #define DIVU (HI(0) | LO(27)) 138 #define DIV_S (HI(17) | FMT_S | LO(3)) 139 #define DMULT (HI(0) | LO(28)) 140 #define DMULTU (HI(0) | LO(29)) 141 #define DSLL (HI(0) | LO(56)) 142 #define DSLL32 (HI(0) | LO(60)) 143 #define DSLLV (HI(0) | LO(20)) 144 #define DSRA (HI(0) | LO(59)) 145 #define DSRA32 (HI(0) | LO(63)) 146 #define DSRAV (HI(0) | LO(23)) 147 #define DSRL (HI(0) | LO(58)) 148 #define DSRL32 (HI(0) | LO(62)) 149 #define DSRLV (HI(0) | LO(22)) 150 #define DSUBU (HI(0) | LO(47)) 151 #define J (HI(2)) 152 #define JAL (HI(3)) 153 #define JALR (HI(0) | LO(9)) 154 #define JR (HI(0) | LO(8)) 155 #define LD (HI(55)) 156 #define LUI (HI(15)) 157 #define LW (HI(35)) 158 #define MFC1 (HI(17)) 159 #define MFHI (HI(0) | LO(16)) 160 #define MFLO (HI(0) | LO(18)) 161 #define MOV_S (HI(17) | FMT_S | LO(6)) 162 #define MTC1 (HI(17) | (4 << 21)) 163 #define MUL_S (HI(17) | FMT_S | LO(2)) 164 #define MULT (HI(0) | LO(24)) 165 #define MULTU (HI(0) | LO(25)) 166 #define NEG_S (HI(17) | FMT_S | LO(7)) 167 #define NOP (HI(0) | LO(0)) 168 #define NOR (HI(0) | LO(39)) 169 #define OR (HI(0) | LO(37)) 170 #define ORI (HI(13)) 171 #define SD (HI(63)) 172 #define SDC1 (HI(61)) 173 #define SLT (HI(0) | LO(42)) 174 #define SLTI (HI(10)) 175 #define SLTIU (HI(11)) 176 #define SLTU (HI(0) | LO(43)) 177 #define SLL (HI(0) | LO(0)) 178 #define SLLV (HI(0) | LO(4)) 179 #define SRL (HI(0) | LO(2)) 180 #define SRLV (HI(0) | LO(6)) 181 #define SRA (HI(0) | LO(3)) 182 #define SRAV (HI(0) | LO(7)) 183 #define SUB_S (HI(17) | FMT_S | LO(1)) 184 #define SUBU (HI(0) | LO(35)) 185 #define SW (HI(43)) 186 #define SWC1 (HI(57)) 187 #define TRUNC_W_S (HI(17) | FMT_S | LO(13)) 188 #define XOR (HI(0) | LO(38)) 189 #define XORI (HI(14)) 190 191 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 192 #define CLZ (HI(28) | LO(32)) 193 #define DCLZ (HI(28) | LO(36)) 194 #define MOVF (HI(0) | (0 << 16) | LO(1)) 195 #define MOVN (HI(0) | LO(11)) 196 #define MOVT (HI(0) | (1 << 16) | LO(1)) 197 #define MOVZ (HI(0) | LO(10)) 198 #define MUL (HI(28) | LO(2)) 199 #define PREF (HI(51)) 200 #define PREFX (HI(19) | LO(15)) 201 #define SEB (HI(31) | (16 << 6) | LO(32)) 202 #define SEH (HI(31) | (24 << 6) | LO(32)) 203 #endif 204 205 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 206 #define ADDU_W ADDU 207 #define ADDIU_W ADDIU 208 #define SLL_W SLL 209 #define SUBU_W SUBU 210 #else 211 #define ADDU_W DADDU 212 #define ADDIU_W DADDIU 213 #define SLL_W DSLL 214 #define SUBU_W DSUBU 215 #endif 216 217 #define SIMM_MAX (0x7fff) 218 #define SIMM_MIN (-0x8000) 219 #define UIMM_MAX (0xffff) 220 221 /* dest_reg is the absolute name of the register 222 Useful for reordering instructions in the delay slot. */ 223 static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_s32 delay_slot) 224 { 225 SLJIT_ASSERT(delay_slot == MOVABLE_INS || delay_slot >= UNMOVABLE_INS 226 || delay_slot == ((ins >> 11) & 0x1f) || delay_slot == ((ins >> 16) & 0x1f)); 227 sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins)); 228 FAIL_IF(!ptr); 229 *ptr = ins; 230 compiler->size++; 231 compiler->delay_slot = delay_slot; 232 return SLJIT_SUCCESS; 233 } 234 235 static SLJIT_INLINE sljit_ins invert_branch(sljit_s32 flags) 236 { 237 return (flags & IS_BIT26_COND) ? (1 << 26) : (1 << 16); 238 } 239 240 static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code, sljit_sw executable_offset) 241 { 242 sljit_sw diff; 243 sljit_uw target_addr; 244 sljit_ins *inst; 245 sljit_ins saved_inst; 246 247 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 248 if (jump->flags & (SLJIT_REWRITABLE_JUMP | IS_CALL)) 249 return code_ptr; 250 #else 251 if (jump->flags & SLJIT_REWRITABLE_JUMP) 252 return code_ptr; 253 #endif 254 255 if (jump->flags & JUMP_ADDR) 256 target_addr = jump->u.target; 257 else { 258 SLJIT_ASSERT(jump->flags & JUMP_LABEL); 259 target_addr = (sljit_uw)(code + jump->u.label->size) + (sljit_uw)executable_offset; 260 } 261 262 inst = (sljit_ins *)jump->addr; 263 if (jump->flags & IS_COND) 264 inst--; 265 266 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 267 if (jump->flags & IS_CALL) 268 goto keep_address; 269 #endif 270 271 /* B instructions. */ 272 if (jump->flags & IS_MOVABLE) { 273 diff = ((sljit_sw)target_addr - (sljit_sw)inst - executable_offset) >> 2; 274 if (diff <= SIMM_MAX && diff >= SIMM_MIN) { 275 jump->flags |= PATCH_B; 276 277 if (!(jump->flags & IS_COND)) { 278 inst[0] = inst[-1]; 279 inst[-1] = (jump->flags & IS_JAL) ? BAL : B; 280 jump->addr -= sizeof(sljit_ins); 281 return inst; 282 } 283 saved_inst = inst[0]; 284 inst[0] = inst[-1]; 285 inst[-1] = saved_inst ^ invert_branch(jump->flags); 286 jump->addr -= 2 * sizeof(sljit_ins); 287 return inst; 288 } 289 } 290 else { 291 diff = ((sljit_sw)target_addr - (sljit_sw)(inst + 1) - executable_offset) >> 2; 292 if (diff <= SIMM_MAX && diff >= SIMM_MIN) { 293 jump->flags |= PATCH_B; 294 295 if (!(jump->flags & IS_COND)) { 296 inst[0] = (jump->flags & IS_JAL) ? BAL : B; 297 inst[1] = NOP; 298 return inst + 1; 299 } 300 inst[0] = inst[0] ^ invert_branch(jump->flags); 301 inst[1] = NOP; 302 jump->addr -= sizeof(sljit_ins); 303 return inst + 1; 304 } 305 } 306 307 if (jump->flags & IS_COND) { 308 if ((jump->flags & IS_MOVABLE) && (target_addr & ~0xfffffff) == ((jump->addr + 2 * sizeof(sljit_ins)) & ~0xfffffff)) { 309 jump->flags |= PATCH_J; 310 saved_inst = inst[0]; 311 inst[0] = inst[-1]; 312 inst[-1] = (saved_inst & 0xffff0000) | 3; 313 inst[1] = J; 314 inst[2] = NOP; 315 return inst + 2; 316 } 317 else if ((target_addr & ~0xfffffff) == ((jump->addr + 3 * sizeof(sljit_ins)) & ~0xfffffff)) { 318 jump->flags |= PATCH_J; 319 inst[0] = (inst[0] & 0xffff0000) | 3; 320 inst[1] = NOP; 321 inst[2] = J; 322 inst[3] = NOP; 323 jump->addr += sizeof(sljit_ins); 324 return inst + 3; 325 } 326 } 327 else { 328 /* J instuctions. */ 329 if ((jump->flags & IS_MOVABLE) && (target_addr & ~0xfffffff) == (jump->addr & ~0xfffffff)) { 330 jump->flags |= PATCH_J; 331 inst[0] = inst[-1]; 332 inst[-1] = (jump->flags & IS_JAL) ? JAL : J; 333 jump->addr -= sizeof(sljit_ins); 334 return inst; 335 } 336 337 if ((target_addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)) { 338 jump->flags |= PATCH_J; 339 inst[0] = (jump->flags & IS_JAL) ? JAL : J; 340 inst[1] = NOP; 341 return inst + 1; 342 } 343 } 344 345 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 346 keep_address: 347 if (target_addr <= 0x7fffffff) { 348 jump->flags |= PATCH_ABS32; 349 if (jump->flags & IS_COND) { 350 inst[0] -= 4; 351 inst++; 352 } 353 inst[2] = inst[6]; 354 inst[3] = inst[7]; 355 return inst + 3; 356 } 357 if (target_addr <= 0x7fffffffffffl) { 358 jump->flags |= PATCH_ABS48; 359 if (jump->flags & IS_COND) { 360 inst[0] -= 2; 361 inst++; 362 } 363 inst[4] = inst[6]; 364 inst[5] = inst[7]; 365 return inst + 5; 366 } 367 #endif 368 369 return code_ptr; 370 } 371 372 #ifdef __GNUC__ 373 static __attribute__ ((noinline)) void sljit_cache_flush(void* code, void* code_ptr) 374 { 375 SLJIT_CACHE_FLUSH(code, code_ptr); 376 } 377 #endif 378 379 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler) 380 { 381 struct sljit_memory_fragment *buf; 382 sljit_ins *code; 383 sljit_ins *code_ptr; 384 sljit_ins *buf_ptr; 385 sljit_ins *buf_end; 386 sljit_uw word_count; 387 sljit_sw executable_offset; 388 sljit_uw addr; 389 390 struct sljit_label *label; 391 struct sljit_jump *jump; 392 struct sljit_const *const_; 393 394 CHECK_ERROR_PTR(); 395 CHECK_PTR(check_sljit_generate_code(compiler)); 396 reverse_buf(compiler); 397 398 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins)); 399 PTR_FAIL_WITH_EXEC_IF(code); 400 buf = compiler->buf; 401 402 code_ptr = code; 403 word_count = 0; 404 executable_offset = SLJIT_EXEC_OFFSET(code); 405 406 label = compiler->labels; 407 jump = compiler->jumps; 408 const_ = compiler->consts; 409 410 do { 411 buf_ptr = (sljit_ins*)buf->memory; 412 buf_end = buf_ptr + (buf->used_size >> 2); 413 do { 414 *code_ptr = *buf_ptr++; 415 SLJIT_ASSERT(!label || label->size >= word_count); 416 SLJIT_ASSERT(!jump || jump->addr >= word_count); 417 SLJIT_ASSERT(!const_ || const_->addr >= word_count); 418 /* These structures are ordered by their address. */ 419 if (label && label->size == word_count) { 420 label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset); 421 label->size = code_ptr - code; 422 label = label->next; 423 } 424 if (jump && jump->addr == word_count) { 425 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 426 jump->addr = (sljit_uw)(code_ptr - 3); 427 #else 428 jump->addr = (sljit_uw)(code_ptr - 7); 429 #endif 430 code_ptr = detect_jump_type(jump, code_ptr, code, executable_offset); 431 jump = jump->next; 432 } 433 if (const_ && const_->addr == word_count) { 434 /* Just recording the address. */ 435 const_->addr = (sljit_uw)code_ptr; 436 const_ = const_->next; 437 } 438 code_ptr ++; 439 word_count ++; 440 } while (buf_ptr < buf_end); 441 442 buf = buf->next; 443 } while (buf); 444 445 if (label && label->size == word_count) { 446 label->addr = (sljit_uw)code_ptr; 447 label->size = code_ptr - code; 448 label = label->next; 449 } 450 451 SLJIT_ASSERT(!label); 452 SLJIT_ASSERT(!jump); 453 SLJIT_ASSERT(!const_); 454 SLJIT_ASSERT(code_ptr - code <= (sljit_sw)compiler->size); 455 456 jump = compiler->jumps; 457 while (jump) { 458 do { 459 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target; 460 buf_ptr = (sljit_ins *)jump->addr; 461 462 if (jump->flags & PATCH_B) { 463 addr = (sljit_sw)(addr - ((sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset) + sizeof(sljit_ins))) >> 2; 464 SLJIT_ASSERT((sljit_sw)addr <= SIMM_MAX && (sljit_sw)addr >= SIMM_MIN); 465 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | (addr & 0xffff); 466 break; 467 } 468 if (jump->flags & PATCH_J) { 469 SLJIT_ASSERT((addr & ~0xfffffff) == (((sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset) + sizeof(sljit_ins)) & ~0xfffffff)); 470 buf_ptr[0] |= (addr >> 2) & 0x03ffffff; 471 break; 472 } 473 474 /* Set the fields of immediate loads. */ 475 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 476 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff); 477 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff); 478 #else 479 if (jump->flags & PATCH_ABS32) { 480 SLJIT_ASSERT(addr <= 0x7fffffff); 481 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff); 482 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff); 483 } 484 else if (jump->flags & PATCH_ABS48) { 485 SLJIT_ASSERT(addr <= 0x7fffffffffffl); 486 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 32) & 0xffff); 487 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 16) & 0xffff); 488 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | (addr & 0xffff); 489 } 490 else { 491 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff); 492 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff); 493 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff); 494 buf_ptr[5] = (buf_ptr[5] & 0xffff0000) | (addr & 0xffff); 495 } 496 #endif 497 } while (0); 498 jump = jump->next; 499 } 500 501 compiler->error = SLJIT_ERR_COMPILED; 502 compiler->executable_offset = executable_offset; 503 compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins); 504 505 code = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset); 506 code_ptr = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset); 507 508 #ifndef __GNUC__ 509 SLJIT_CACHE_FLUSH(code, code_ptr); 510 #else 511 /* GCC workaround for invalid code generation with -O2. */ 512 sljit_cache_flush(code, code_ptr); 513 #endif 514 return code; 515 } 516 517 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_has_cpu_feature(sljit_s32 feature_type) 518 { 519 sljit_sw fir = 0; 520 521 switch (feature_type) { 522 case SLJIT_HAS_FPU: 523 #ifdef SLJIT_IS_FPU_AVAILABLE 524 return SLJIT_IS_FPU_AVAILABLE; 525 #elif defined(__GNUC__) 526 asm ("cfc1 %0, $0" : "=r"(fir)); 527 return (fir >> 22) & 0x1; 528 #else 529 #error "FIR check is not implemented for this architecture" 530 #endif 531 532 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 533 case SLJIT_HAS_CLZ: 534 case SLJIT_HAS_CMOV: 535 return 1; 536 #endif 537 538 default: 539 return fir; 540 } 541 } 542 543 /* --------------------------------------------------------------------- */ 544 /* Entry, exit */ 545 /* --------------------------------------------------------------------- */ 546 547 /* Creates an index in data_transfer_insts array. */ 548 #define LOAD_DATA 0x01 549 #define WORD_DATA 0x00 550 #define BYTE_DATA 0x02 551 #define HALF_DATA 0x04 552 #define INT_DATA 0x06 553 #define SIGNED_DATA 0x08 554 /* Separates integer and floating point registers */ 555 #define GPR_REG 0x0f 556 #define DOUBLE_DATA 0x10 557 #define SINGLE_DATA 0x12 558 559 #define MEM_MASK 0x1f 560 561 #define ARG_TEST 0x00020 562 #define ALT_KEEP_CACHE 0x00040 563 #define CUMULATIVE_OP 0x00080 564 #define LOGICAL_OP 0x00100 565 #define IMM_OP 0x00200 566 #define SRC2_IMM 0x00400 567 568 #define UNUSED_DEST 0x00800 569 #define REG_DEST 0x01000 570 #define REG1_SOURCE 0x02000 571 #define REG2_SOURCE 0x04000 572 #define SLOW_SRC1 0x08000 573 #define SLOW_SRC2 0x10000 574 #define SLOW_DEST 0x20000 575 576 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 577 #define STACK_STORE SW 578 #define STACK_LOAD LW 579 #else 580 #define STACK_STORE SD 581 #define STACK_LOAD LD 582 #endif 583 584 static SLJIT_INLINE sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg_ar, sljit_s32 arg, sljit_sw argw); 585 586 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 587 #include "sljitNativeMIPS_32.c" 588 #else 589 #include "sljitNativeMIPS_64.c" 590 #endif 591 592 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler, 593 sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds, 594 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size) 595 { 596 sljit_ins base; 597 sljit_s32 args, i, tmp, offs; 598 599 CHECK_ERROR(); 600 CHECK(check_sljit_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size)); 601 set_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size); 602 603 local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1) + SLJIT_LOCALS_OFFSET; 604 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 605 local_size = (local_size + 15) & ~0xf; 606 #else 607 local_size = (local_size + 31) & ~0x1f; 608 #endif 609 compiler->local_size = local_size; 610 611 if (local_size <= SIMM_MAX) { 612 /* Frequent case. */ 613 FAIL_IF(push_inst(compiler, ADDIU_W | S(SLJIT_SP) | T(SLJIT_SP) | IMM(-local_size), DR(SLJIT_SP))); 614 base = S(SLJIT_SP); 615 offs = local_size - (sljit_sw)sizeof(sljit_sw); 616 } 617 else { 618 FAIL_IF(load_immediate(compiler, DR(OTHER_FLAG), local_size)); 619 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SP) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); 620 FAIL_IF(push_inst(compiler, SUBU_W | S(SLJIT_SP) | T(OTHER_FLAG) | D(SLJIT_SP), DR(SLJIT_SP))); 621 base = S(TMP_REG2); 622 local_size = 0; 623 offs = -(sljit_sw)sizeof(sljit_sw); 624 } 625 626 FAIL_IF(push_inst(compiler, STACK_STORE | base | TA(RETURN_ADDR_REG) | IMM(offs), MOVABLE_INS)); 627 628 tmp = saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - saveds) : SLJIT_FIRST_SAVED_REG; 629 for (i = SLJIT_S0; i >= tmp; i--) { 630 offs -= (sljit_s32)(sizeof(sljit_sw)); 631 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(i) | IMM(offs), MOVABLE_INS)); 632 } 633 634 for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--) { 635 offs -= (sljit_s32)(sizeof(sljit_sw)); 636 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(i) | IMM(offs), MOVABLE_INS)); 637 } 638 639 args = get_arg_count(arg_types); 640 641 if (args >= 1) 642 FAIL_IF(push_inst(compiler, ADDU_W | SA(4) | TA(0) | D(SLJIT_S0), DR(SLJIT_S0))); 643 if (args >= 2) 644 FAIL_IF(push_inst(compiler, ADDU_W | SA(5) | TA(0) | D(SLJIT_S1), DR(SLJIT_S1))); 645 if (args >= 3) 646 FAIL_IF(push_inst(compiler, ADDU_W | SA(6) | TA(0) | D(SLJIT_S2), DR(SLJIT_S2))); 647 648 return SLJIT_SUCCESS; 649 } 650 651 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler, 652 sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds, 653 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size) 654 { 655 CHECK_ERROR(); 656 CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size)); 657 set_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size); 658 659 local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1) + SLJIT_LOCALS_OFFSET; 660 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 661 compiler->local_size = (local_size + 15) & ~0xf; 662 #else 663 compiler->local_size = (local_size + 31) & ~0x1f; 664 #endif 665 return SLJIT_SUCCESS; 666 } 667 668 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw) 669 { 670 sljit_s32 local_size, i, tmp, offs; 671 sljit_ins base; 672 673 CHECK_ERROR(); 674 CHECK(check_sljit_emit_return(compiler, op, src, srcw)); 675 676 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw)); 677 678 local_size = compiler->local_size; 679 if (local_size <= SIMM_MAX) 680 base = S(SLJIT_SP); 681 else { 682 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size)); 683 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SP) | T(TMP_REG1) | D(TMP_REG1), DR(TMP_REG1))); 684 base = S(TMP_REG1); 685 local_size = 0; 686 } 687 688 FAIL_IF(push_inst(compiler, STACK_LOAD | base | TA(RETURN_ADDR_REG) | IMM(local_size - (sljit_s32)sizeof(sljit_sw)), RETURN_ADDR_REG)); 689 offs = local_size - (sljit_s32)GET_SAVED_REGISTERS_SIZE(compiler->scratches, compiler->saveds, 1); 690 691 tmp = compiler->scratches; 692 for (i = SLJIT_FIRST_SAVED_REG; i <= tmp; i++) { 693 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(i) | IMM(offs), DR(i))); 694 offs += (sljit_s32)(sizeof(sljit_sw)); 695 } 696 697 tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG; 698 for (i = tmp; i <= SLJIT_S0; i++) { 699 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(i) | IMM(offs), DR(i))); 700 offs += (sljit_s32)(sizeof(sljit_sw)); 701 } 702 703 SLJIT_ASSERT(offs == local_size - (sljit_sw)(sizeof(sljit_sw))); 704 705 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS)); 706 if (compiler->local_size <= SIMM_MAX) 707 return push_inst(compiler, ADDIU_W | S(SLJIT_SP) | T(SLJIT_SP) | IMM(compiler->local_size), UNMOVABLE_INS); 708 else 709 return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(SLJIT_SP), UNMOVABLE_INS); 710 } 711 712 #undef STACK_STORE 713 #undef STACK_LOAD 714 715 /* --------------------------------------------------------------------- */ 716 /* Operators */ 717 /* --------------------------------------------------------------------- */ 718 719 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 720 #define ARCH_32_64(a, b) a 721 #else 722 #define ARCH_32_64(a, b) b 723 #endif 724 725 static const sljit_ins data_transfer_insts[16 + 4] = { 726 /* u w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */), 727 /* u w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */), 728 /* u b s */ HI(40) /* sb */, 729 /* u b l */ HI(36) /* lbu */, 730 /* u h s */ HI(41) /* sh */, 731 /* u h l */ HI(37) /* lhu */, 732 /* u i s */ HI(43) /* sw */, 733 /* u i l */ ARCH_32_64(HI(35) /* lw */, HI(39) /* lwu */), 734 735 /* s w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */), 736 /* s w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */), 737 /* s b s */ HI(40) /* sb */, 738 /* s b l */ HI(32) /* lb */, 739 /* s h s */ HI(41) /* sh */, 740 /* s h l */ HI(33) /* lh */, 741 /* s i s */ HI(43) /* sw */, 742 /* s i l */ HI(35) /* lw */, 743 744 /* d s */ HI(61) /* sdc1 */, 745 /* d l */ HI(53) /* ldc1 */, 746 /* s s */ HI(57) /* swc1 */, 747 /* s l */ HI(49) /* lwc1 */, 748 }; 749 750 #undef ARCH_32_64 751 752 /* reg_ar is an absoulute register! */ 753 754 /* Can perform an operation using at most 1 instruction. */ 755 static sljit_s32 getput_arg_fast(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg_ar, sljit_s32 arg, sljit_sw argw) 756 { 757 SLJIT_ASSERT(arg & SLJIT_MEM); 758 759 if (!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN) { 760 /* Works for both absoulte and relative addresses. */ 761 if (SLJIT_UNLIKELY(flags & ARG_TEST)) 762 return 1; 763 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(arg & REG_MASK) 764 | TA(reg_ar) | IMM(argw), ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? reg_ar : MOVABLE_INS)); 765 return -1; 766 } 767 return 0; 768 } 769 770 /* See getput_arg below. 771 Note: can_cache is called only for binary operators. Those 772 operators always uses word arguments without write back. */ 773 static sljit_s32 can_cache(sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw) 774 { 775 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM)); 776 777 /* Simple operation except for updates. */ 778 if (arg & OFFS_REG_MASK) { 779 argw &= 0x3; 780 next_argw &= 0x3; 781 if (argw && argw == next_argw && (arg == next_arg || (arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK))) 782 return 1; 783 return 0; 784 } 785 786 if (arg == next_arg) { 787 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN)) 788 return 1; 789 return 0; 790 } 791 792 return 0; 793 } 794 795 /* Emit the necessary instructions. See can_cache above. */ 796 static sljit_s32 getput_arg(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg_ar, sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw) 797 { 798 sljit_s32 tmp_ar, base, delay_slot; 799 800 SLJIT_ASSERT(arg & SLJIT_MEM); 801 if (!(next_arg & SLJIT_MEM)) { 802 next_arg = 0; 803 next_argw = 0; 804 } 805 806 if ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) { 807 tmp_ar = reg_ar; 808 delay_slot = reg_ar; 809 } 810 else { 811 tmp_ar = DR(TMP_REG1); 812 delay_slot = MOVABLE_INS; 813 } 814 base = arg & REG_MASK; 815 816 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) { 817 argw &= 0x3; 818 819 /* Using the cache. */ 820 if (argw == compiler->cache_argw) { 821 if (arg == compiler->cache_arg) 822 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 823 824 if ((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) { 825 if (arg == next_arg && argw == (next_argw & 0x3)) { 826 compiler->cache_arg = arg; 827 compiler->cache_argw = argw; 828 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(TMP_REG3), DR(TMP_REG3))); 829 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 830 } 831 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | DA(tmp_ar), tmp_ar)); 832 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 833 } 834 } 835 836 if (SLJIT_UNLIKELY(argw)) { 837 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK); 838 compiler->cache_argw = argw; 839 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(arg)) | D(TMP_REG3) | SH_IMM(argw), DR(TMP_REG3))); 840 } 841 842 if (arg == next_arg && argw == (next_argw & 0x3)) { 843 compiler->cache_arg = arg; 844 compiler->cache_argw = argw; 845 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | D(TMP_REG3), DR(TMP_REG3))); 846 tmp_ar = DR(TMP_REG3); 847 } 848 else 849 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | DA(tmp_ar), tmp_ar)); 850 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 851 } 852 853 if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { 854 if (argw != compiler->cache_argw) { 855 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 856 compiler->cache_argw = argw; 857 } 858 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 859 } 860 861 if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { 862 if (argw != compiler->cache_argw) 863 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 864 } 865 else { 866 compiler->cache_arg = SLJIT_MEM; 867 FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); 868 } 869 compiler->cache_argw = argw; 870 871 if (!base) 872 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 873 874 if (arg == next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN) { 875 compiler->cache_arg = arg; 876 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | D(TMP_REG3), DR(TMP_REG3))); 877 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 878 } 879 880 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | DA(tmp_ar), tmp_ar)); 881 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 882 } 883 884 static SLJIT_INLINE sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg_ar, sljit_s32 arg, sljit_sw argw) 885 { 886 sljit_s32 tmp_ar, base, delay_slot; 887 888 if (getput_arg_fast(compiler, flags, reg_ar, arg, argw)) 889 return compiler->error; 890 891 if ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) { 892 tmp_ar = reg_ar; 893 delay_slot = reg_ar; 894 } 895 else { 896 tmp_ar = DR(TMP_REG1); 897 delay_slot = MOVABLE_INS; 898 } 899 base = arg & REG_MASK; 900 901 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) { 902 argw &= 0x3; 903 904 if (SLJIT_UNLIKELY(argw)) { 905 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(arg)) | DA(tmp_ar) | SH_IMM(argw), tmp_ar)); 906 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | TA(tmp_ar) | DA(tmp_ar), tmp_ar)); 907 } 908 else 909 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(OFFS_REG(arg)) | DA(tmp_ar), tmp_ar)); 910 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 911 } 912 913 FAIL_IF(load_immediate(compiler, tmp_ar, argw)); 914 915 if (base != 0) 916 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | TA(tmp_ar) | DA(tmp_ar), tmp_ar)); 917 918 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 919 } 920 921 static SLJIT_INLINE sljit_s32 emit_op_mem2(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg1, sljit_sw arg1w, sljit_s32 arg2, sljit_sw arg2w) 922 { 923 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w)) 924 return compiler->error; 925 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w); 926 } 927 928 static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags, 929 sljit_s32 dst, sljit_sw dstw, 930 sljit_s32 src1, sljit_sw src1w, 931 sljit_s32 src2, sljit_sw src2w) 932 { 933 /* arg1 goes to TMP_REG1 or src reg 934 arg2 goes to TMP_REG2, imm or src reg 935 TMP_REG3 can be used for caching 936 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */ 937 sljit_s32 dst_r = TMP_REG2; 938 sljit_s32 src1_r; 939 sljit_sw src2_r = 0; 940 sljit_s32 sugg_src2_r = TMP_REG2; 941 942 if (!(flags & ALT_KEEP_CACHE)) { 943 compiler->cache_arg = 0; 944 compiler->cache_argw = 0; 945 } 946 947 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) { 948 SLJIT_ASSERT(HAS_FLAGS(op)); 949 flags |= UNUSED_DEST; 950 } 951 else if (FAST_IS_REG(dst)) { 952 dst_r = dst; 953 flags |= REG_DEST; 954 if (op >= SLJIT_MOV && op <= SLJIT_MOV_P) 955 sugg_src2_r = dst_r; 956 } 957 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, DR(TMP_REG1), dst, dstw)) 958 flags |= SLOW_DEST; 959 960 if (flags & IMM_OP) { 961 if ((src2 & SLJIT_IMM) && src2w) { 962 if ((!(flags & LOGICAL_OP) && (src2w <= SIMM_MAX && src2w >= SIMM_MIN)) 963 || ((flags & LOGICAL_OP) && !(src2w & ~UIMM_MAX))) { 964 flags |= SRC2_IMM; 965 src2_r = src2w; 966 } 967 } 968 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) { 969 if ((!(flags & LOGICAL_OP) && (src1w <= SIMM_MAX && src1w >= SIMM_MIN)) 970 || ((flags & LOGICAL_OP) && !(src1w & ~UIMM_MAX))) { 971 flags |= SRC2_IMM; 972 src2_r = src1w; 973 974 /* And swap arguments. */ 975 src1 = src2; 976 src1w = src2w; 977 src2 = SLJIT_IMM; 978 /* src2w = src2_r unneeded. */ 979 } 980 } 981 } 982 983 /* Source 1. */ 984 if (FAST_IS_REG(src1)) { 985 src1_r = src1; 986 flags |= REG1_SOURCE; 987 } 988 else if (src1 & SLJIT_IMM) { 989 if (src1w) { 990 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); 991 src1_r = TMP_REG1; 992 } 993 else 994 src1_r = 0; 995 } 996 else { 997 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w)) 998 FAIL_IF(compiler->error); 999 else 1000 flags |= SLOW_SRC1; 1001 src1_r = TMP_REG1; 1002 } 1003 1004 /* Source 2. */ 1005 if (FAST_IS_REG(src2)) { 1006 src2_r = src2; 1007 flags |= REG2_SOURCE; 1008 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOV_P) 1009 dst_r = src2_r; 1010 } 1011 else if (src2 & SLJIT_IMM) { 1012 if (!(flags & SRC2_IMM)) { 1013 if (src2w) { 1014 FAIL_IF(load_immediate(compiler, DR(sugg_src2_r), src2w)); 1015 src2_r = sugg_src2_r; 1016 } 1017 else { 1018 src2_r = 0; 1019 if ((op >= SLJIT_MOV && op <= SLJIT_MOV_P) && (dst & SLJIT_MEM)) 1020 dst_r = 0; 1021 } 1022 } 1023 } 1024 else { 1025 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w)) 1026 FAIL_IF(compiler->error); 1027 else 1028 flags |= SLOW_SRC2; 1029 src2_r = sugg_src2_r; 1030 } 1031 1032 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 1033 SLJIT_ASSERT(src2_r == TMP_REG2); 1034 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 1035 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, src1, src1w)); 1036 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw)); 1037 } 1038 else { 1039 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, src2, src2w)); 1040 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, dst, dstw)); 1041 } 1042 } 1043 else if (flags & SLOW_SRC1) 1044 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw)); 1045 else if (flags & SLOW_SRC2) 1046 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w, dst, dstw)); 1047 1048 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r)); 1049 1050 if (dst & SLJIT_MEM) { 1051 if (!(flags & SLOW_DEST)) { 1052 getput_arg_fast(compiler, flags, DR(dst_r), dst, dstw); 1053 return compiler->error; 1054 } 1055 return getput_arg(compiler, flags, DR(dst_r), dst, dstw, 0, 0); 1056 } 1057 1058 return SLJIT_SUCCESS; 1059 } 1060 1061 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op) 1062 { 1063 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1064 sljit_s32 int_op = op & SLJIT_I32_OP; 1065 #endif 1066 1067 CHECK_ERROR(); 1068 CHECK(check_sljit_emit_op0(compiler, op)); 1069 1070 op = GET_OPCODE(op); 1071 switch (op) { 1072 case SLJIT_BREAKPOINT: 1073 return push_inst(compiler, BREAK, UNMOVABLE_INS); 1074 case SLJIT_NOP: 1075 return push_inst(compiler, NOP, UNMOVABLE_INS); 1076 case SLJIT_LMUL_UW: 1077 case SLJIT_LMUL_SW: 1078 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1079 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? DMULTU : DMULT) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1080 #else 1081 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? MULTU : MULT) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1082 #endif 1083 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_R0), DR(SLJIT_R0))); 1084 return push_inst(compiler, MFHI | D(SLJIT_R1), DR(SLJIT_R1)); 1085 case SLJIT_DIVMOD_UW: 1086 case SLJIT_DIVMOD_SW: 1087 case SLJIT_DIV_UW: 1088 case SLJIT_DIV_SW: 1089 SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments); 1090 #if !(defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 1091 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1092 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1093 #endif 1094 1095 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1096 if (int_op) 1097 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1098 else 1099 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DDIVU : DDIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1100 #else 1101 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1102 #endif 1103 1104 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_R0), DR(SLJIT_R0))); 1105 return (op >= SLJIT_DIV_UW) ? SLJIT_SUCCESS : push_inst(compiler, MFHI | D(SLJIT_R1), DR(SLJIT_R1)); 1106 } 1107 1108 return SLJIT_SUCCESS; 1109 } 1110 1111 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 1112 static sljit_s32 emit_prefetch(struct sljit_compiler *compiler, 1113 sljit_s32 src, sljit_sw srcw) 1114 { 1115 if (!(src & OFFS_REG_MASK)) { 1116 if (srcw <= SIMM_MAX && srcw >= SIMM_MIN) 1117 return push_inst(compiler, PREF | S(src & REG_MASK) | IMM(srcw), MOVABLE_INS); 1118 1119 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw)); 1120 return push_inst(compiler, PREFX | S(src & REG_MASK) | T(TMP_REG1), MOVABLE_INS); 1121 } 1122 1123 srcw &= 0x3; 1124 1125 if (SLJIT_UNLIKELY(srcw != 0)) { 1126 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(src)) | D(TMP_REG1) | SH_IMM(srcw), DR(TMP_REG1))); 1127 return push_inst(compiler, PREFX | S(src & REG_MASK) | T(TMP_REG1), MOVABLE_INS); 1128 } 1129 1130 return push_inst(compiler, PREFX | S(src & REG_MASK) | T(OFFS_REG(src)), MOVABLE_INS); 1131 } 1132 #endif 1133 1134 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op, 1135 sljit_s32 dst, sljit_sw dstw, 1136 sljit_s32 src, sljit_sw srcw) 1137 { 1138 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1139 # define flags 0 1140 #else 1141 sljit_s32 flags = 0; 1142 #endif 1143 1144 CHECK_ERROR(); 1145 CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw)); 1146 ADJUST_LOCAL_OFFSET(dst, dstw); 1147 ADJUST_LOCAL_OFFSET(src, srcw); 1148 1149 if (dst == SLJIT_UNUSED && !HAS_FLAGS(op)) { 1150 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 1151 if (op <= SLJIT_MOV_P && (src & SLJIT_MEM)) 1152 return emit_prefetch(compiler, src, srcw); 1153 #endif 1154 return SLJIT_SUCCESS; 1155 } 1156 1157 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1158 if ((op & SLJIT_I32_OP) && GET_OPCODE(op) >= SLJIT_NOT) 1159 flags |= INT_DATA | SIGNED_DATA; 1160 #endif 1161 1162 switch (GET_OPCODE(op)) { 1163 case SLJIT_MOV: 1164 case SLJIT_MOV_P: 1165 return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 1166 1167 case SLJIT_MOV_U32: 1168 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1169 return emit_op(compiler, SLJIT_MOV_U32, INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 1170 #else 1171 return emit_op(compiler, SLJIT_MOV_U32, INT_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u32)srcw : srcw); 1172 #endif 1173 1174 case SLJIT_MOV_S32: 1175 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1176 return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 1177 #else 1178 return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s32)srcw : srcw); 1179 #endif 1180 1181 case SLJIT_MOV_U8: 1182 return emit_op(compiler, SLJIT_MOV_U8, BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw); 1183 1184 case SLJIT_MOV_S8: 1185 return emit_op(compiler, SLJIT_MOV_S8, BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw); 1186 1187 case SLJIT_MOV_U16: 1188 return emit_op(compiler, SLJIT_MOV_U16, HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw); 1189 1190 case SLJIT_MOV_S16: 1191 return emit_op(compiler, SLJIT_MOV_S16, HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw); 1192 1193 case SLJIT_NOT: 1194 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw); 1195 1196 case SLJIT_NEG: 1197 return emit_op(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw); 1198 1199 case SLJIT_CLZ: 1200 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw); 1201 } 1202 1203 SLJIT_UNREACHABLE(); 1204 return SLJIT_SUCCESS; 1205 1206 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1207 # undef flags 1208 #endif 1209 } 1210 1211 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op, 1212 sljit_s32 dst, sljit_sw dstw, 1213 sljit_s32 src1, sljit_sw src1w, 1214 sljit_s32 src2, sljit_sw src2w) 1215 { 1216 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1217 # define flags 0 1218 #else 1219 sljit_s32 flags = 0; 1220 #endif 1221 1222 CHECK_ERROR(); 1223 CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w)); 1224 ADJUST_LOCAL_OFFSET(dst, dstw); 1225 ADJUST_LOCAL_OFFSET(src1, src1w); 1226 ADJUST_LOCAL_OFFSET(src2, src2w); 1227 1228 if (dst == SLJIT_UNUSED && !HAS_FLAGS(op)) 1229 return SLJIT_SUCCESS; 1230 1231 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1232 if (op & SLJIT_I32_OP) { 1233 flags |= INT_DATA | SIGNED_DATA; 1234 if (src1 & SLJIT_IMM) 1235 src1w = (sljit_s32)src1w; 1236 if (src2 & SLJIT_IMM) 1237 src2w = (sljit_s32)src2w; 1238 } 1239 #endif 1240 1241 switch (GET_OPCODE(op)) { 1242 case SLJIT_ADD: 1243 case SLJIT_ADDC: 1244 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1245 1246 case SLJIT_SUB: 1247 case SLJIT_SUBC: 1248 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1249 1250 case SLJIT_MUL: 1251 return emit_op(compiler, op, flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w); 1252 1253 case SLJIT_AND: 1254 case SLJIT_OR: 1255 case SLJIT_XOR: 1256 return emit_op(compiler, op, flags | CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1257 1258 case SLJIT_SHL: 1259 case SLJIT_LSHR: 1260 case SLJIT_ASHR: 1261 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1262 if (src2 & SLJIT_IMM) 1263 src2w &= 0x1f; 1264 #else 1265 if (src2 & SLJIT_IMM) { 1266 if (op & SLJIT_I32_OP) 1267 src2w &= 0x1f; 1268 else 1269 src2w &= 0x3f; 1270 } 1271 #endif 1272 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1273 } 1274 1275 SLJIT_UNREACHABLE(); 1276 return SLJIT_SUCCESS; 1277 1278 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1279 # undef flags 1280 #endif 1281 } 1282 1283 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg) 1284 { 1285 CHECK_REG_INDEX(check_sljit_get_register_index(reg)); 1286 return reg_map[reg]; 1287 } 1288 1289 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg) 1290 { 1291 CHECK_REG_INDEX(check_sljit_get_float_register_index(reg)); 1292 return FR(reg); 1293 } 1294 1295 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler, 1296 void *instruction, sljit_s32 size) 1297 { 1298 CHECK_ERROR(); 1299 CHECK(check_sljit_emit_op_custom(compiler, instruction, size)); 1300 1301 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS); 1302 } 1303 1304 /* --------------------------------------------------------------------- */ 1305 /* Floating point operators */ 1306 /* --------------------------------------------------------------------- */ 1307 1308 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_F32_OP) >> 7)) 1309 #define FMT(op) (((op & SLJIT_F32_OP) ^ SLJIT_F32_OP) << (21 - 8)) 1310 1311 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op, 1312 sljit_s32 dst, sljit_sw dstw, 1313 sljit_s32 src, sljit_sw srcw) 1314 { 1315 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1316 # define flags 0 1317 #else 1318 sljit_s32 flags = (GET_OPCODE(op) == SLJIT_CONV_SW_FROM_F64) << 21; 1319 #endif 1320 1321 if (src & SLJIT_MEM) { 1322 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src, srcw, dst, dstw)); 1323 src = TMP_FREG1; 1324 } 1325 1326 FAIL_IF(push_inst(compiler, (TRUNC_W_S ^ (flags >> 19)) | FMT(op) | FS(src) | FD(TMP_FREG1), MOVABLE_INS)); 1327 1328 if (FAST_IS_REG(dst)) 1329 return push_inst(compiler, MFC1 | flags | T(dst) | FS(TMP_FREG1), MOVABLE_INS); 1330 1331 /* Store the integer value from a VFP register. */ 1332 return emit_op_mem2(compiler, flags ? DOUBLE_DATA : SINGLE_DATA, FR(TMP_FREG1), dst, dstw, 0, 0); 1333 1334 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1335 # undef is_long 1336 #endif 1337 } 1338 1339 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op, 1340 sljit_s32 dst, sljit_sw dstw, 1341 sljit_s32 src, sljit_sw srcw) 1342 { 1343 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1344 # define flags 0 1345 #else 1346 sljit_s32 flags = (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_SW) << 21; 1347 #endif 1348 1349 sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1; 1350 1351 if (FAST_IS_REG(src)) 1352 FAIL_IF(push_inst(compiler, MTC1 | flags | T(src) | FS(TMP_FREG1), MOVABLE_INS)); 1353 else if (src & SLJIT_MEM) { 1354 /* Load the integer value into a VFP register. */ 1355 FAIL_IF(emit_op_mem2(compiler, ((flags) ? DOUBLE_DATA : SINGLE_DATA) | LOAD_DATA, FR(TMP_FREG1), src, srcw, dst, dstw)); 1356 } 1357 else { 1358 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) 1359 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32) 1360 srcw = (sljit_s32)srcw; 1361 #endif 1362 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw)); 1363 FAIL_IF(push_inst(compiler, MTC1 | flags | T(TMP_REG1) | FS(TMP_FREG1), MOVABLE_INS)); 1364 } 1365 1366 FAIL_IF(push_inst(compiler, CVT_S_S | flags | (4 << 21) | (((op & SLJIT_F32_OP) ^ SLJIT_F32_OP) >> 8) | FS(TMP_FREG1) | FD(dst_r), MOVABLE_INS)); 1367 1368 if (dst & SLJIT_MEM) 1369 return emit_op_mem2(compiler, FLOAT_DATA(op), FR(TMP_FREG1), dst, dstw, 0, 0); 1370 return SLJIT_SUCCESS; 1371 1372 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1373 # undef flags 1374 #endif 1375 } 1376 1377 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op, 1378 sljit_s32 src1, sljit_sw src1w, 1379 sljit_s32 src2, sljit_sw src2w) 1380 { 1381 sljit_ins inst; 1382 1383 if (src1 & SLJIT_MEM) { 1384 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, src2, src2w)); 1385 src1 = TMP_FREG1; 1386 } 1387 1388 if (src2 & SLJIT_MEM) { 1389 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, 0, 0)); 1390 src2 = TMP_FREG2; 1391 } 1392 1393 switch (GET_FLAG_TYPE(op)) { 1394 case SLJIT_EQUAL_F64: 1395 case SLJIT_NOT_EQUAL_F64: 1396 inst = C_UEQ_S; 1397 break; 1398 case SLJIT_LESS_F64: 1399 case SLJIT_GREATER_EQUAL_F64: 1400 inst = C_ULT_S; 1401 break; 1402 case SLJIT_GREATER_F64: 1403 case SLJIT_LESS_EQUAL_F64: 1404 inst = C_ULE_S; 1405 break; 1406 default: 1407 SLJIT_ASSERT(GET_FLAG_TYPE(op) == SLJIT_UNORDERED_F64 || GET_FLAG_TYPE(op) == SLJIT_ORDERED_F64); 1408 inst = C_UN_S; 1409 break; 1410 } 1411 1412 return push_inst(compiler, inst | FMT(op) | FT(src2) | FS(src1), UNMOVABLE_INS); 1413 } 1414 1415 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op, 1416 sljit_s32 dst, sljit_sw dstw, 1417 sljit_s32 src, sljit_sw srcw) 1418 { 1419 sljit_s32 dst_r; 1420 1421 CHECK_ERROR(); 1422 compiler->cache_arg = 0; 1423 compiler->cache_argw = 0; 1424 1425 SLJIT_COMPILE_ASSERT((SLJIT_F32_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_CONV_F64_FROM_F32) 1429 op ^= SLJIT_F32_OP; 1430 1431 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1; 1432 1433 if (src & SLJIT_MEM) { 1434 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(dst_r), src, srcw, dst, dstw)); 1435 src = dst_r; 1436 } 1437 1438 switch (GET_OPCODE(op)) { 1439 case SLJIT_MOV_F64: 1440 if (src != dst_r) { 1441 if (dst_r != TMP_FREG1) 1442 FAIL_IF(push_inst(compiler, MOV_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS)); 1443 else 1444 dst_r = src; 1445 } 1446 break; 1447 case SLJIT_NEG_F64: 1448 FAIL_IF(push_inst(compiler, NEG_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS)); 1449 break; 1450 case SLJIT_ABS_F64: 1451 FAIL_IF(push_inst(compiler, ABS_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS)); 1452 break; 1453 case SLJIT_CONV_F64_FROM_F32: 1454 FAIL_IF(push_inst(compiler, CVT_S_S | ((op & SLJIT_F32_OP) ? 1 : (1 << 21)) | FS(src) | FD(dst_r), MOVABLE_INS)); 1455 op ^= SLJIT_F32_OP; 1456 break; 1457 } 1458 1459 if (dst & SLJIT_MEM) 1460 return emit_op_mem2(compiler, FLOAT_DATA(op), FR(dst_r), dst, dstw, 0, 0); 1461 return SLJIT_SUCCESS; 1462 } 1463 1464 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op, 1465 sljit_s32 dst, sljit_sw dstw, 1466 sljit_s32 src1, sljit_sw src1w, 1467 sljit_s32 src2, sljit_sw src2w) 1468 { 1469 sljit_s32 dst_r, flags = 0; 1470 1471 CHECK_ERROR(); 1472 CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w)); 1473 ADJUST_LOCAL_OFFSET(dst, dstw); 1474 ADJUST_LOCAL_OFFSET(src1, src1w); 1475 ADJUST_LOCAL_OFFSET(src2, src2w); 1476 1477 compiler->cache_arg = 0; 1478 compiler->cache_argw = 0; 1479 1480 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG2; 1481 1482 if (src1 & SLJIT_MEM) { 1483 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w)) { 1484 FAIL_IF(compiler->error); 1485 src1 = TMP_FREG1; 1486 } else 1487 flags |= SLOW_SRC1; 1488 } 1489 1490 if (src2 & SLJIT_MEM) { 1491 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w)) { 1492 FAIL_IF(compiler->error); 1493 src2 = TMP_FREG2; 1494 } else 1495 flags |= SLOW_SRC2; 1496 } 1497 1498 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 1499 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 1500 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, src1, src1w)); 1501 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, dst, dstw)); 1502 } 1503 else { 1504 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, src2, src2w)); 1505 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, dst, dstw)); 1506 } 1507 } 1508 else if (flags & SLOW_SRC1) 1509 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, dst, dstw)); 1510 else if (flags & SLOW_SRC2) 1511 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, dst, dstw)); 1512 1513 if (flags & SLOW_SRC1) 1514 src1 = TMP_FREG1; 1515 if (flags & SLOW_SRC2) 1516 src2 = TMP_FREG2; 1517 1518 switch (GET_OPCODE(op)) { 1519 case SLJIT_ADD_F64: 1520 FAIL_IF(push_inst(compiler, ADD_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS)); 1521 break; 1522 1523 case SLJIT_SUB_F64: 1524 FAIL_IF(push_inst(compiler, SUB_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS)); 1525 break; 1526 1527 case SLJIT_MUL_F64: 1528 FAIL_IF(push_inst(compiler, MUL_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS)); 1529 break; 1530 1531 case SLJIT_DIV_F64: 1532 FAIL_IF(push_inst(compiler, DIV_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS)); 1533 break; 1534 } 1535 1536 if (dst_r == TMP_FREG2) 1537 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), FR(TMP_FREG2), dst, dstw, 0, 0)); 1538 1539 return SLJIT_SUCCESS; 1540 } 1541 1542 /* --------------------------------------------------------------------- */ 1543 /* Other instructions */ 1544 /* --------------------------------------------------------------------- */ 1545 1546 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw) 1547 { 1548 CHECK_ERROR(); 1549 CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw)); 1550 ADJUST_LOCAL_OFFSET(dst, dstw); 1551 1552 if (FAST_IS_REG(dst)) 1553 return push_inst(compiler, ADDU_W | SA(RETURN_ADDR_REG) | TA(0) | D(dst), DR(dst)); 1554 1555 /* Memory. */ 1556 return emit_op_mem(compiler, WORD_DATA, RETURN_ADDR_REG, dst, dstw); 1557 } 1558 1559 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src, sljit_sw srcw) 1560 { 1561 CHECK_ERROR(); 1562 CHECK(check_sljit_emit_fast_return(compiler, src, srcw)); 1563 ADJUST_LOCAL_OFFSET(src, srcw); 1564 1565 if (FAST_IS_REG(src)) 1566 FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | DA(RETURN_ADDR_REG), RETURN_ADDR_REG)); 1567 else 1568 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, RETURN_ADDR_REG, src, srcw)); 1569 1570 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1571 return push_inst(compiler, NOP, UNMOVABLE_INS); 1572 } 1573 1574 /* --------------------------------------------------------------------- */ 1575 /* Conditional instructions */ 1576 /* --------------------------------------------------------------------- */ 1577 1578 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler) 1579 { 1580 struct sljit_label *label; 1581 1582 CHECK_ERROR_PTR(); 1583 CHECK_PTR(check_sljit_emit_label(compiler)); 1584 1585 if (compiler->last_label && compiler->last_label->size == compiler->size) 1586 return compiler->last_label; 1587 1588 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label)); 1589 PTR_FAIL_IF(!label); 1590 set_label(label, compiler); 1591 compiler->delay_slot = UNMOVABLE_INS; 1592 return label; 1593 } 1594 1595 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1596 #define JUMP_LENGTH 4 1597 #else 1598 #define JUMP_LENGTH 8 1599 #endif 1600 1601 #define BR_Z(src) \ 1602 inst = BEQ | SA(src) | TA(0) | JUMP_LENGTH; \ 1603 flags = IS_BIT26_COND; \ 1604 delay_check = src; 1605 1606 #define BR_NZ(src) \ 1607 inst = BNE | SA(src) | TA(0) | JUMP_LENGTH; \ 1608 flags = IS_BIT26_COND; \ 1609 delay_check = src; 1610 1611 #define BR_T() \ 1612 inst = BC1T | JUMP_LENGTH; \ 1613 flags = IS_BIT16_COND; \ 1614 delay_check = FCSR_FCC; 1615 1616 #define BR_F() \ 1617 inst = BC1F | JUMP_LENGTH; \ 1618 flags = IS_BIT16_COND; \ 1619 delay_check = FCSR_FCC; 1620 1621 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type) 1622 { 1623 struct sljit_jump *jump; 1624 sljit_ins inst; 1625 sljit_s32 flags = 0; 1626 sljit_s32 delay_check = UNMOVABLE_INS; 1627 1628 CHECK_ERROR_PTR(); 1629 CHECK_PTR(check_sljit_emit_jump(compiler, type)); 1630 1631 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1632 PTR_FAIL_IF(!jump); 1633 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1634 type &= 0xff; 1635 1636 switch (type) { 1637 case SLJIT_EQUAL: 1638 BR_NZ(EQUAL_FLAG); 1639 break; 1640 case SLJIT_NOT_EQUAL: 1641 BR_Z(EQUAL_FLAG); 1642 break; 1643 case SLJIT_LESS: 1644 case SLJIT_GREATER: 1645 case SLJIT_SIG_LESS: 1646 case SLJIT_SIG_GREATER: 1647 case SLJIT_OVERFLOW: 1648 case SLJIT_MUL_OVERFLOW: 1649 BR_Z(OTHER_FLAG); 1650 break; 1651 case SLJIT_GREATER_EQUAL: 1652 case SLJIT_LESS_EQUAL: 1653 case SLJIT_SIG_GREATER_EQUAL: 1654 case SLJIT_SIG_LESS_EQUAL: 1655 case SLJIT_NOT_OVERFLOW: 1656 case SLJIT_MUL_NOT_OVERFLOW: 1657 BR_NZ(OTHER_FLAG); 1658 break; 1659 case SLJIT_NOT_EQUAL_F64: 1660 case SLJIT_GREATER_EQUAL_F64: 1661 case SLJIT_GREATER_F64: 1662 case SLJIT_ORDERED_F64: 1663 BR_T(); 1664 break; 1665 case SLJIT_EQUAL_F64: 1666 case SLJIT_LESS_F64: 1667 case SLJIT_LESS_EQUAL_F64: 1668 case SLJIT_UNORDERED_F64: 1669 BR_F(); 1670 break; 1671 default: 1672 /* Not conditional branch. */ 1673 inst = 0; 1674 break; 1675 } 1676 1677 jump->flags |= flags; 1678 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != delay_check)) 1679 jump->flags |= IS_MOVABLE; 1680 1681 if (inst) 1682 PTR_FAIL_IF(push_inst(compiler, inst, UNMOVABLE_INS)); 1683 1684 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1685 1686 if (type <= SLJIT_JUMP) 1687 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); 1688 else { 1689 jump->flags |= IS_JAL; 1690 PTR_FAIL_IF(push_inst(compiler, JALR | S(TMP_REG2) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1691 } 1692 1693 jump->addr = compiler->size; 1694 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1695 return jump; 1696 } 1697 1698 #define RESOLVE_IMM1() \ 1699 if (src1 & SLJIT_IMM) { \ 1700 if (src1w) { \ 1701 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); \ 1702 src1 = TMP_REG1; \ 1703 } \ 1704 else \ 1705 src1 = 0; \ 1706 } 1707 1708 #define RESOLVE_IMM2() \ 1709 if (src2 & SLJIT_IMM) { \ 1710 if (src2w) { \ 1711 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG2), src2w)); \ 1712 src2 = TMP_REG2; \ 1713 } \ 1714 else \ 1715 src2 = 0; \ 1716 } 1717 1718 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, sljit_s32 type, 1719 sljit_s32 src1, sljit_sw src1w, 1720 sljit_s32 src2, sljit_sw src2w) 1721 { 1722 struct sljit_jump *jump; 1723 sljit_s32 flags; 1724 sljit_ins inst; 1725 1726 CHECK_ERROR_PTR(); 1727 CHECK_PTR(check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w)); 1728 ADJUST_LOCAL_OFFSET(src1, src1w); 1729 ADJUST_LOCAL_OFFSET(src2, src2w); 1730 1731 compiler->cache_arg = 0; 1732 compiler->cache_argw = 0; 1733 flags = ((type & SLJIT_I32_OP) ? INT_DATA : WORD_DATA) | LOAD_DATA; 1734 if (src1 & SLJIT_MEM) { 1735 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG1), src1, src1w, src2, src2w)); 1736 src1 = TMP_REG1; 1737 } 1738 if (src2 & SLJIT_MEM) { 1739 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG2), src2, src2w, 0, 0)); 1740 src2 = TMP_REG2; 1741 } 1742 1743 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1744 PTR_FAIL_IF(!jump); 1745 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1746 type &= 0xff; 1747 1748 if (type <= SLJIT_NOT_EQUAL) { 1749 RESOLVE_IMM1(); 1750 RESOLVE_IMM2(); 1751 jump->flags |= IS_BIT26_COND; 1752 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != DR(src1) && compiler->delay_slot != DR(src2))) 1753 jump->flags |= IS_MOVABLE; 1754 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_EQUAL ? BNE : BEQ) | S(src1) | T(src2) | JUMP_LENGTH, UNMOVABLE_INS)); 1755 } 1756 else if (type >= SLJIT_SIG_LESS && (((src1 & SLJIT_IMM) && (src1w == 0)) || ((src2 & SLJIT_IMM) && (src2w == 0)))) { 1757 inst = NOP; 1758 if ((src1 & SLJIT_IMM) && (src1w == 0)) { 1759 RESOLVE_IMM2(); 1760 switch (type) { 1761 case SLJIT_SIG_LESS: 1762 inst = BLEZ; 1763 jump->flags |= IS_BIT26_COND; 1764 break; 1765 case SLJIT_SIG_GREATER_EQUAL: 1766 inst = BGTZ; 1767 jump->flags |= IS_BIT26_COND; 1768 break; 1769 case SLJIT_SIG_GREATER: 1770 inst = BGEZ; 1771 jump->flags |= IS_BIT16_COND; 1772 break; 1773 case SLJIT_SIG_LESS_EQUAL: 1774 inst = BLTZ; 1775 jump->flags |= IS_BIT16_COND; 1776 break; 1777 } 1778 src1 = src2; 1779 } 1780 else { 1781 RESOLVE_IMM1(); 1782 switch (type) { 1783 case SLJIT_SIG_LESS: 1784 inst = BGEZ; 1785 jump->flags |= IS_BIT16_COND; 1786 break; 1787 case SLJIT_SIG_GREATER_EQUAL: 1788 inst = BLTZ; 1789 jump->flags |= IS_BIT16_COND; 1790 break; 1791 case SLJIT_SIG_GREATER: 1792 inst = BLEZ; 1793 jump->flags |= IS_BIT26_COND; 1794 break; 1795 case SLJIT_SIG_LESS_EQUAL: 1796 inst = BGTZ; 1797 jump->flags |= IS_BIT26_COND; 1798 break; 1799 } 1800 } 1801 PTR_FAIL_IF(push_inst(compiler, inst | S(src1) | JUMP_LENGTH, UNMOVABLE_INS)); 1802 } 1803 else { 1804 if (type == SLJIT_LESS || type == SLJIT_GREATER_EQUAL || type == SLJIT_SIG_LESS || type == SLJIT_SIG_GREATER_EQUAL) { 1805 RESOLVE_IMM1(); 1806 if ((src2 & SLJIT_IMM) && src2w <= SIMM_MAX && src2w >= SIMM_MIN) 1807 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTIU : SLTI) | S(src1) | T(TMP_REG1) | IMM(src2w), DR(TMP_REG1))); 1808 else { 1809 RESOLVE_IMM2(); 1810 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTU : SLT) | S(src1) | T(src2) | D(TMP_REG1), DR(TMP_REG1))); 1811 } 1812 type = (type == SLJIT_LESS || type == SLJIT_SIG_LESS) ? SLJIT_NOT_EQUAL : SLJIT_EQUAL; 1813 } 1814 else { 1815 RESOLVE_IMM2(); 1816 if ((src1 & SLJIT_IMM) && src1w <= SIMM_MAX && src1w >= SIMM_MIN) 1817 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTIU : SLTI) | S(src2) | T(TMP_REG1) | IMM(src1w), DR(TMP_REG1))); 1818 else { 1819 RESOLVE_IMM1(); 1820 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTU : SLT) | S(src2) | T(src1) | D(TMP_REG1), DR(TMP_REG1))); 1821 } 1822 type = (type == SLJIT_GREATER || type == SLJIT_SIG_GREATER) ? SLJIT_NOT_EQUAL : SLJIT_EQUAL; 1823 } 1824 1825 jump->flags |= IS_BIT26_COND; 1826 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_EQUAL ? BNE : BEQ) | S(TMP_REG1) | TA(0) | JUMP_LENGTH, UNMOVABLE_INS)); 1827 } 1828 1829 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1830 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); 1831 jump->addr = compiler->size; 1832 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1833 return jump; 1834 } 1835 1836 #undef RESOLVE_IMM1 1837 #undef RESOLVE_IMM2 1838 1839 #undef JUMP_LENGTH 1840 #undef BR_Z 1841 #undef BR_NZ 1842 #undef BR_T 1843 #undef BR_F 1844 1845 #undef FLOAT_DATA 1846 #undef FMT 1847 1848 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw) 1849 { 1850 struct sljit_jump *jump = NULL; 1851 1852 CHECK_ERROR(); 1853 CHECK(check_sljit_emit_ijump(compiler, type, src, srcw)); 1854 ADJUST_LOCAL_OFFSET(src, srcw); 1855 1856 if (src & SLJIT_IMM) { 1857 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1858 FAIL_IF(!jump); 1859 set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_JAL : 0)); 1860 jump->u.target = srcw; 1861 1862 if (compiler->delay_slot != UNMOVABLE_INS) 1863 jump->flags |= IS_MOVABLE; 1864 1865 FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1866 src = TMP_REG2; 1867 } 1868 else if (src & SLJIT_MEM) { 1869 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, DR(TMP_REG2), src, srcw)); 1870 src = TMP_REG2; 1871 } 1872 1873 FAIL_IF(push_inst(compiler, JR | S(src), UNMOVABLE_INS)); 1874 if (jump) 1875 jump->addr = compiler->size; 1876 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1877 return SLJIT_SUCCESS; 1878 } 1879 1880 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op, 1881 sljit_s32 dst, sljit_sw dstw, 1882 sljit_s32 type) 1883 { 1884 sljit_s32 src_ar, dst_ar; 1885 sljit_s32 saved_op = op; 1886 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1887 sljit_s32 mem_type = WORD_DATA; 1888 #else 1889 sljit_s32 mem_type = (op & SLJIT_I32_OP) ? (INT_DATA | SIGNED_DATA) : WORD_DATA; 1890 #endif 1891 1892 CHECK_ERROR(); 1893 CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type)); 1894 ADJUST_LOCAL_OFFSET(dst, dstw); 1895 1896 op = GET_OPCODE(op); 1897 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1898 if (op == SLJIT_MOV_S32) 1899 mem_type = INT_DATA | SIGNED_DATA; 1900 #endif 1901 dst_ar = DR((op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2); 1902 1903 compiler->cache_arg = 0; 1904 compiler->cache_argw = 0; 1905 1906 if (op >= SLJIT_ADD && (dst & SLJIT_MEM)) 1907 FAIL_IF(emit_op_mem2(compiler, mem_type | LOAD_DATA, DR(TMP_REG1), dst, dstw, dst, dstw)); 1908 1909 switch (type & 0xff) { 1910 case SLJIT_EQUAL: 1911 case SLJIT_NOT_EQUAL: 1912 FAIL_IF(push_inst(compiler, SLTIU | SA(EQUAL_FLAG) | TA(dst_ar) | IMM(1), dst_ar)); 1913 src_ar = dst_ar; 1914 break; 1915 case SLJIT_MUL_OVERFLOW: 1916 case SLJIT_MUL_NOT_OVERFLOW: 1917 FAIL_IF(push_inst(compiler, SLTIU | SA(OTHER_FLAG) | TA(dst_ar) | IMM(1), dst_ar)); 1918 src_ar = dst_ar; 1919 type ^= 0x1; /* Flip type bit for the XORI below. */ 1920 break; 1921 case SLJIT_GREATER_F64: 1922 case SLJIT_LESS_EQUAL_F64: 1923 type ^= 0x1; /* Flip type bit for the XORI below. */ 1924 case SLJIT_EQUAL_F64: 1925 case SLJIT_NOT_EQUAL_F64: 1926 case SLJIT_LESS_F64: 1927 case SLJIT_GREATER_EQUAL_F64: 1928 case SLJIT_UNORDERED_F64: 1929 case SLJIT_ORDERED_F64: 1930 FAIL_IF(push_inst(compiler, CFC1 | TA(dst_ar) | DA(FCSR_REG), dst_ar)); 1931 FAIL_IF(push_inst(compiler, SRL | TA(dst_ar) | DA(dst_ar) | SH_IMM(23), dst_ar)); 1932 FAIL_IF(push_inst(compiler, ANDI | SA(dst_ar) | TA(dst_ar) | IMM(1), dst_ar)); 1933 src_ar = dst_ar; 1934 break; 1935 1936 default: 1937 src_ar = OTHER_FLAG; 1938 break; 1939 } 1940 1941 if (type & 0x1) { 1942 FAIL_IF(push_inst(compiler, XORI | SA(src_ar) | TA(dst_ar) | IMM(1), dst_ar)); 1943 src_ar = dst_ar; 1944 } 1945 1946 if (op < SLJIT_ADD) { 1947 if (dst & SLJIT_MEM) 1948 return emit_op_mem(compiler, mem_type, src_ar, dst, dstw); 1949 1950 if (src_ar != dst_ar) 1951 return push_inst(compiler, ADDU_W | SA(src_ar) | TA(0) | DA(dst_ar), dst_ar); 1952 return SLJIT_SUCCESS; 1953 } 1954 1955 /* OTHER_FLAG cannot be specified as src2 argument at the moment. */ 1956 if (DR(TMP_REG2) != src_ar) 1957 FAIL_IF(push_inst(compiler, ADDU_W | SA(src_ar) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); 1958 1959 mem_type |= CUMULATIVE_OP | LOGICAL_OP | IMM_OP | ALT_KEEP_CACHE; 1960 1961 if (dst & SLJIT_MEM) 1962 return emit_op(compiler, saved_op, mem_type, dst, dstw, TMP_REG1, 0, TMP_REG2, 0); 1963 return emit_op(compiler, saved_op, mem_type, dst, dstw, dst, dstw, TMP_REG2, 0); 1964 } 1965 1966 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_cmov(struct sljit_compiler *compiler, sljit_s32 type, 1967 sljit_s32 dst_reg, 1968 sljit_s32 src, sljit_sw srcw) 1969 { 1970 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 1971 sljit_ins ins; 1972 #endif 1973 1974 CHECK_ERROR(); 1975 CHECK(check_sljit_emit_cmov(compiler, type, dst_reg, src, srcw)); 1976 1977 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 1978 1979 if (SLJIT_UNLIKELY(src & SLJIT_IMM)) { 1980 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1981 if (dst_reg & SLJIT_I32_OP) 1982 srcw = (sljit_s32)srcw; 1983 #endif 1984 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw)); 1985 src = TMP_REG1; 1986 srcw = 0; 1987 } 1988 1989 dst_reg &= ~SLJIT_I32_OP; 1990 1991 switch (type & 0xff) { 1992 case SLJIT_EQUAL: 1993 ins = MOVZ | TA(EQUAL_FLAG); 1994 break; 1995 case SLJIT_NOT_EQUAL: 1996 ins = MOVN | TA(EQUAL_FLAG); 1997 break; 1998 case SLJIT_LESS: 1999 case SLJIT_GREATER: 2000 case SLJIT_SIG_LESS: 2001 case SLJIT_SIG_GREATER: 2002 case SLJIT_OVERFLOW: 2003 case SLJIT_MUL_OVERFLOW: 2004 ins = MOVN | TA(OTHER_FLAG); 2005 break; 2006 case SLJIT_GREATER_EQUAL: 2007 case SLJIT_LESS_EQUAL: 2008 case SLJIT_SIG_GREATER_EQUAL: 2009 case SLJIT_SIG_LESS_EQUAL: 2010 case SLJIT_NOT_OVERFLOW: 2011 case SLJIT_MUL_NOT_OVERFLOW: 2012 ins = MOVZ | TA(OTHER_FLAG); 2013 break; 2014 case SLJIT_EQUAL_F64: 2015 case SLJIT_LESS_F64: 2016 case SLJIT_LESS_EQUAL_F64: 2017 case SLJIT_UNORDERED_F64: 2018 ins = MOVT; 2019 break; 2020 case SLJIT_NOT_EQUAL_F64: 2021 case SLJIT_GREATER_EQUAL_F64: 2022 case SLJIT_GREATER_F64: 2023 case SLJIT_ORDERED_F64: 2024 ins = MOVF; 2025 break; 2026 default: 2027 ins = MOVZ | TA(OTHER_FLAG); 2028 SLJIT_UNREACHABLE(); 2029 break; 2030 } 2031 2032 return push_inst(compiler, ins | S(src) | D(dst_reg), DR(dst_reg)); 2033 2034 #else 2035 return sljit_emit_cmov_generic(compiler, type, dst_reg, src, srcw); 2036 #endif 2037 } 2038 2039 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value) 2040 { 2041 struct sljit_const *const_; 2042 sljit_s32 reg; 2043 2044 CHECK_ERROR_PTR(); 2045 CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value)); 2046 ADJUST_LOCAL_OFFSET(dst, dstw); 2047 2048 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const)); 2049 PTR_FAIL_IF(!const_); 2050 set_const(const_, compiler); 2051 2052 reg = FAST_IS_REG(dst) ? dst : TMP_REG2; 2053 2054 PTR_FAIL_IF(emit_const(compiler, reg, init_value)); 2055 2056 if (dst & SLJIT_MEM) 2057 PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0)); 2058 return const_; 2059 } 2060
