1 /* $NetBSD: sljitNativeMIPS_common.c,v 1.5 2025/04/30 15:40:38 nia Exp $ */ 2 3 /* 4 * Stack-less Just-In-Time compiler 5 * 6 * Copyright Zoltan Herczeg (hzmester (at) freemail.hu). All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without modification, are 9 * permitted provided that the following conditions are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright notice, this list of 12 * conditions and the following disclaimer. 13 * 14 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 15 * of conditions and the following disclaimer in the documentation and/or other materials 16 * provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY 19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 21 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 23 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 26 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* Latest MIPS architecture. */ 30 /* Automatically detect SLJIT_MIPS_R1 */ 31 32 SLJIT_API_FUNC_ATTRIBUTE const char* sljit_get_platform_name(void) 33 { 34 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 35 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 36 return "MIPS32-R1" SLJIT_CPUINFO; 37 #else 38 return "MIPS64-R1" SLJIT_CPUINFO; 39 #endif 40 #else /* SLJIT_MIPS_R1 */ 41 return "MIPS III" SLJIT_CPUINFO; 42 #endif 43 } 44 45 /* Length of an instruction word 46 Both for mips-32 and mips-64 */ 47 typedef sljit_u32 sljit_ins; 48 49 #define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2) 50 #define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3) 51 #define TMP_REG3 (SLJIT_NUMBER_OF_REGISTERS + 4) 52 53 /* For position independent code, t9 must contain the function address. */ 54 #define PIC_ADDR_REG TMP_REG2 55 56 /* Floating point status register. */ 57 #define FCSR_REG 31 58 /* Return address register. */ 59 #define RETURN_ADDR_REG 31 60 61 /* Flags are kept in volatile registers. */ 62 #define EQUAL_FLAG 31 63 #define OTHER_FLAG 1 64 65 #define TMP_FREG1 (0) 66 #define TMP_FREG2 ((SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1) << 1) 67 68 static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 5] = { 69 0, 2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 24, 23, 22, 21, 20, 19, 18, 17, 16, 29, 3, 25, 4 70 }; 71 72 /* --------------------------------------------------------------------- */ 73 /* Instrucion forms */ 74 /* --------------------------------------------------------------------- */ 75 76 #define S(s) (reg_map[s] << 21) 77 #define T(t) (reg_map[t] << 16) 78 #define D(d) (reg_map[d] << 11) 79 /* Absolute registers. */ 80 #define SA(s) ((s) << 21) 81 #define TA(t) ((t) << 16) 82 #define DA(d) ((d) << 11) 83 #define FT(t) ((t) << 16) 84 #define FS(s) ((s) << 11) 85 #define FD(d) ((d) << 6) 86 #define IMM(imm) ((imm) & 0xffff) 87 #define SH_IMM(imm) ((imm) << 6) 88 89 #define DR(dr) (reg_map[dr]) 90 #define HI(opcode) ((opcode) << 26) 91 #define LO(opcode) (opcode) 92 /* S = (16 << 21) D = (17 << 21) */ 93 #define FMT_S (16 << 21) 94 95 #define ABS_S (HI(17) | FMT_S | LO(5)) 96 #define ADD_S (HI(17) | FMT_S | LO(0)) 97 #define ADDIU (HI(9)) 98 #define ADDU (HI(0) | LO(33)) 99 #define AND (HI(0) | LO(36)) 100 #define ANDI (HI(12)) 101 #define B (HI(4)) 102 #define BAL (HI(1) | (17 << 16)) 103 #define BC1F (HI(17) | (8 << 21)) 104 #define BC1T (HI(17) | (8 << 21) | (1 << 16)) 105 #define BEQ (HI(4)) 106 #define BGEZ (HI(1) | (1 << 16)) 107 #define BGTZ (HI(7)) 108 #define BLEZ (HI(6)) 109 #define BLTZ (HI(1) | (0 << 16)) 110 #define BNE (HI(5)) 111 #define BREAK (HI(0) | LO(13)) 112 #define CFC1 (HI(17) | (2 << 21)) 113 #define C_UN_S (HI(17) | FMT_S | LO(49)) 114 #define C_UEQ_S (HI(17) | FMT_S | LO(51)) 115 #define C_ULE_S (HI(17) | FMT_S | LO(55)) 116 #define C_ULT_S (HI(17) | FMT_S | LO(53)) 117 #define CVT_S_S (HI(17) | FMT_S | LO(32)) 118 #define DADDIU (HI(25)) 119 #define DADDU (HI(0) | LO(45)) 120 #define DDIV (HI(0) | LO(30)) 121 #define DDIVU (HI(0) | LO(31)) 122 #define DIV (HI(0) | LO(26)) 123 #define DIVU (HI(0) | LO(27)) 124 #define DIV_S (HI(17) | FMT_S | LO(3)) 125 #define DMULT (HI(0) | LO(28)) 126 #define DMULTU (HI(0) | LO(29)) 127 #define DSLL (HI(0) | LO(56)) 128 #define DSLL32 (HI(0) | LO(60)) 129 #define DSLLV (HI(0) | LO(20)) 130 #define DSRA (HI(0) | LO(59)) 131 #define DSRA32 (HI(0) | LO(63)) 132 #define DSRAV (HI(0) | LO(23)) 133 #define DSRL (HI(0) | LO(58)) 134 #define DSRL32 (HI(0) | LO(62)) 135 #define DSRLV (HI(0) | LO(22)) 136 #define DSUBU (HI(0) | LO(47)) 137 #define J (HI(2)) 138 #define JAL (HI(3)) 139 #define JALR (HI(0) | LO(9)) 140 #define JR (HI(0) | LO(8)) 141 #define LD (HI(55)) 142 #define LUI (HI(15)) 143 #define LW (HI(35)) 144 #define MFC1 (HI(17)) 145 #define MFHI (HI(0) | LO(16)) 146 #define MFLO (HI(0) | LO(18)) 147 #define MOV_S (HI(17) | FMT_S | LO(6)) 148 #define MTC1 (HI(17) | (4 << 21)) 149 #define MUL_S (HI(17) | FMT_S | LO(2)) 150 #define MULT (HI(0) | LO(24)) 151 #define MULTU (HI(0) | LO(25)) 152 #define NEG_S (HI(17) | FMT_S | LO(7)) 153 #define NOP (HI(0) | LO(0)) 154 #define NOR (HI(0) | LO(39)) 155 #define OR (HI(0) | LO(37)) 156 #define ORI (HI(13)) 157 #define SD (HI(63)) 158 #define SLT (HI(0) | LO(42)) 159 #define SLTI (HI(10)) 160 #define SLTIU (HI(11)) 161 #define SLTU (HI(0) | LO(43)) 162 #define SLL (HI(0) | LO(0)) 163 #define SLLV (HI(0) | LO(4)) 164 #define SRL (HI(0) | LO(2)) 165 #define SRLV (HI(0) | LO(6)) 166 #define SRA (HI(0) | LO(3)) 167 #define SRAV (HI(0) | LO(7)) 168 #define SUB_S (HI(17) | FMT_S | LO(1)) 169 #define SUBU (HI(0) | LO(35)) 170 #define SW (HI(43)) 171 #define TRUNC_W_S (HI(17) | FMT_S | LO(13)) 172 #define XOR (HI(0) | LO(38)) 173 #define XORI (HI(14)) 174 175 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 176 #define CLZ (HI(28) | LO(32)) 177 #define DCLZ (HI(28) | LO(36)) 178 #define MUL (HI(28) | LO(2)) 179 #define SEB (HI(31) | (16 << 6) | LO(32)) 180 #define SEH (HI(31) | (24 << 6) | LO(32)) 181 #endif 182 183 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 184 #define ADDU_W ADDU 185 #define ADDIU_W ADDIU 186 #define SLL_W SLL 187 #define SUBU_W SUBU 188 #else 189 #define ADDU_W DADDU 190 #define ADDIU_W DADDIU 191 #define SLL_W DSLL 192 #define SUBU_W DSUBU 193 #endif 194 195 #define SIMM_MAX (0x7fff) 196 #define SIMM_MIN (-0x8000) 197 #define UIMM_MAX (0xffff) 198 199 /* dest_reg is the absolute name of the register 200 Useful for reordering instructions in the delay slot. */ 201 static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_s32 delay_slot) 202 { 203 SLJIT_ASSERT(delay_slot == MOVABLE_INS || delay_slot >= UNMOVABLE_INS 204 || delay_slot == ((ins >> 11) & 0x1f) || delay_slot == ((ins >> 16) & 0x1f)); 205 sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins)); 206 FAIL_IF(!ptr); 207 *ptr = ins; 208 compiler->size++; 209 compiler->delay_slot = delay_slot; 210 return SLJIT_SUCCESS; 211 } 212 213 static SLJIT_INLINE sljit_ins invert_branch(sljit_s32 flags) 214 { 215 return (flags & IS_BIT26_COND) ? (1 << 26) : (1 << 16); 216 } 217 218 static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code, sljit_sw executable_offset) 219 { 220 sljit_sw diff; 221 sljit_uw target_addr; 222 sljit_ins *inst; 223 sljit_ins saved_inst; 224 225 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 226 if (jump->flags & (SLJIT_REWRITABLE_JUMP | IS_CALL)) 227 return code_ptr; 228 #else 229 if (jump->flags & SLJIT_REWRITABLE_JUMP) 230 return code_ptr; 231 #endif 232 233 if (jump->flags & JUMP_ADDR) 234 target_addr = jump->u.target; 235 else { 236 SLJIT_ASSERT(jump->flags & JUMP_LABEL); 237 target_addr = (sljit_uw)(code + jump->u.label->size) + (sljit_uw)executable_offset; 238 } 239 240 inst = (sljit_ins *)jump->addr; 241 if (jump->flags & IS_COND) 242 inst--; 243 244 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 245 if (jump->flags & IS_CALL) 246 goto keep_address; 247 #endif 248 249 /* B instructions. */ 250 if (jump->flags & IS_MOVABLE) { 251 diff = ((sljit_sw)target_addr - (sljit_sw)inst - executable_offset) >> 2; 252 if (diff <= SIMM_MAX && diff >= SIMM_MIN) { 253 jump->flags |= PATCH_B; 254 255 if (!(jump->flags & IS_COND)) { 256 inst[0] = inst[-1]; 257 inst[-1] = (jump->flags & IS_JAL) ? BAL : B; 258 jump->addr -= sizeof(sljit_ins); 259 return inst; 260 } 261 saved_inst = inst[0]; 262 inst[0] = inst[-1]; 263 inst[-1] = saved_inst ^ invert_branch(jump->flags); 264 jump->addr -= 2 * sizeof(sljit_ins); 265 return inst; 266 } 267 } 268 else { 269 diff = ((sljit_sw)target_addr - (sljit_sw)(inst + 1) - executable_offset) >> 2; 270 if (diff <= SIMM_MAX && diff >= SIMM_MIN) { 271 jump->flags |= PATCH_B; 272 273 if (!(jump->flags & IS_COND)) { 274 inst[0] = (jump->flags & IS_JAL) ? BAL : B; 275 inst[1] = NOP; 276 return inst + 1; 277 } 278 inst[0] = inst[0] ^ invert_branch(jump->flags); 279 inst[1] = NOP; 280 jump->addr -= sizeof(sljit_ins); 281 return inst + 1; 282 } 283 } 284 285 if (jump->flags & IS_COND) { 286 if ((jump->flags & IS_MOVABLE) && (target_addr & ~0xfffffff) == ((jump->addr + 2 * sizeof(sljit_ins)) & ~0xfffffff)) { 287 jump->flags |= PATCH_J; 288 saved_inst = inst[0]; 289 inst[0] = inst[-1]; 290 inst[-1] = (saved_inst & 0xffff0000) | 3; 291 inst[1] = J; 292 inst[2] = NOP; 293 return inst + 2; 294 } 295 else if ((target_addr & ~0xfffffff) == ((jump->addr + 3 * sizeof(sljit_ins)) & ~0xfffffff)) { 296 jump->flags |= PATCH_J; 297 inst[0] = (inst[0] & 0xffff0000) | 3; 298 inst[1] = NOP; 299 inst[2] = J; 300 inst[3] = NOP; 301 jump->addr += sizeof(sljit_ins); 302 return inst + 3; 303 } 304 } 305 else { 306 /* J instuctions. */ 307 if ((jump->flags & IS_MOVABLE) && (target_addr & ~0xfffffff) == (jump->addr & ~0xfffffff)) { 308 jump->flags |= PATCH_J; 309 inst[0] = inst[-1]; 310 inst[-1] = (jump->flags & IS_JAL) ? JAL : J; 311 jump->addr -= sizeof(sljit_ins); 312 return inst; 313 } 314 315 if ((target_addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)) { 316 jump->flags |= PATCH_J; 317 inst[0] = (jump->flags & IS_JAL) ? JAL : J; 318 inst[1] = NOP; 319 return inst + 1; 320 } 321 } 322 323 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 324 keep_address: 325 if (target_addr <= 0x7fffffff) { 326 jump->flags |= PATCH_ABS32; 327 if (jump->flags & IS_COND) { 328 inst[0] -= 4; 329 inst++; 330 } 331 inst[2] = inst[6]; 332 inst[3] = inst[7]; 333 return inst + 3; 334 } 335 if (target_addr <= 0x7fffffffffffl) { 336 jump->flags |= PATCH_ABS48; 337 if (jump->flags & IS_COND) { 338 inst[0] -= 2; 339 inst++; 340 } 341 inst[4] = inst[6]; 342 inst[5] = inst[7]; 343 return inst + 5; 344 } 345 #endif 346 347 return code_ptr; 348 } 349 350 #ifdef __GNUC__ 351 static __attribute__ ((noinline)) void sljit_cache_flush(void* code, void* code_ptr) 352 { 353 SLJIT_CACHE_FLUSH(code, code_ptr); 354 } 355 #endif 356 357 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler) 358 { 359 struct sljit_memory_fragment *buf; 360 sljit_ins *code; 361 sljit_ins *code_ptr; 362 sljit_ins *buf_ptr; 363 sljit_ins *buf_end; 364 sljit_uw word_count; 365 sljit_sw executable_offset; 366 sljit_uw addr; 367 368 struct sljit_label *label; 369 struct sljit_jump *jump; 370 struct sljit_const *const_; 371 372 CHECK_ERROR_PTR(); 373 CHECK_PTR(check_sljit_generate_code(compiler)); 374 reverse_buf(compiler); 375 376 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins)); 377 PTR_FAIL_WITH_EXEC_IF(code); 378 buf = compiler->buf; 379 380 code_ptr = code; 381 word_count = 0; 382 executable_offset = SLJIT_EXEC_OFFSET(code); 383 384 label = compiler->labels; 385 jump = compiler->jumps; 386 const_ = compiler->consts; 387 388 do { 389 buf_ptr = (sljit_ins*)buf->memory; 390 buf_end = buf_ptr + (buf->used_size >> 2); 391 do { 392 *code_ptr = *buf_ptr++; 393 SLJIT_ASSERT(!label || label->size >= word_count); 394 SLJIT_ASSERT(!jump || jump->addr >= word_count); 395 SLJIT_ASSERT(!const_ || const_->addr >= word_count); 396 /* These structures are ordered by their address. */ 397 if (label && label->size == word_count) { 398 label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset); 399 label->size = code_ptr - code; 400 label = label->next; 401 } 402 if (jump && jump->addr == word_count) { 403 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 404 jump->addr = (sljit_uw)(code_ptr - 3); 405 #else 406 jump->addr = (sljit_uw)(code_ptr - 7); 407 #endif 408 code_ptr = detect_jump_type(jump, code_ptr, code, executable_offset); 409 jump = jump->next; 410 } 411 if (const_ && const_->addr == word_count) { 412 /* Just recording the address. */ 413 const_->addr = (sljit_uw)code_ptr; 414 const_ = const_->next; 415 } 416 code_ptr ++; 417 word_count ++; 418 } while (buf_ptr < buf_end); 419 420 buf = buf->next; 421 } while (buf); 422 423 if (label && label->size == word_count) { 424 label->addr = (sljit_uw)code_ptr; 425 label->size = code_ptr - code; 426 label = label->next; 427 } 428 429 SLJIT_ASSERT(!label); 430 SLJIT_ASSERT(!jump); 431 SLJIT_ASSERT(!const_); 432 SLJIT_ASSERT(code_ptr - code <= (sljit_sw)compiler->size); 433 434 jump = compiler->jumps; 435 while (jump) { 436 do { 437 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target; 438 buf_ptr = (sljit_ins *)jump->addr; 439 440 if (jump->flags & PATCH_B) { 441 addr = (sljit_sw)(addr - ((sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset) + sizeof(sljit_ins))) >> 2; 442 SLJIT_ASSERT((sljit_sw)addr <= SIMM_MAX && (sljit_sw)addr >= SIMM_MIN); 443 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | (addr & 0xffff); 444 break; 445 } 446 if (jump->flags & PATCH_J) { 447 SLJIT_ASSERT((addr & ~0xfffffff) == (((sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset) + sizeof(sljit_ins)) & ~0xfffffff)); 448 buf_ptr[0] |= (addr >> 2) & 0x03ffffff; 449 break; 450 } 451 452 /* Set the fields of immediate loads. */ 453 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 454 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff); 455 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff); 456 #else 457 if (jump->flags & PATCH_ABS32) { 458 SLJIT_ASSERT(addr <= 0x7fffffff); 459 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff); 460 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff); 461 } 462 else if (jump->flags & PATCH_ABS48) { 463 SLJIT_ASSERT(addr <= 0x7fffffffffffl); 464 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 32) & 0xffff); 465 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 16) & 0xffff); 466 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | (addr & 0xffff); 467 } 468 else { 469 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff); 470 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff); 471 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff); 472 buf_ptr[5] = (buf_ptr[5] & 0xffff0000) | (addr & 0xffff); 473 } 474 #endif 475 } while (0); 476 jump = jump->next; 477 } 478 479 compiler->error = SLJIT_ERR_COMPILED; 480 compiler->executable_offset = executable_offset; 481 compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins); 482 483 code = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset); 484 code_ptr = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset); 485 486 #ifndef __GNUC__ 487 SLJIT_CACHE_FLUSH(code, code_ptr); 488 #else 489 /* GCC workaround for invalid code generation with -O2. */ 490 sljit_cache_flush(code, code_ptr); 491 #endif 492 return code; 493 } 494 495 /* --------------------------------------------------------------------- */ 496 /* Entry, exit */ 497 /* --------------------------------------------------------------------- */ 498 499 /* Creates an index in data_transfer_insts array. */ 500 #define LOAD_DATA 0x01 501 #define WORD_DATA 0x00 502 #define BYTE_DATA 0x02 503 #define HALF_DATA 0x04 504 #define INT_DATA 0x06 505 #define SIGNED_DATA 0x08 506 /* Separates integer and floating point registers */ 507 #define GPR_REG 0x0f 508 #define DOUBLE_DATA 0x10 509 #define SINGLE_DATA 0x12 510 511 #define MEM_MASK 0x1f 512 513 #define WRITE_BACK 0x00020 514 #define ARG_TEST 0x00040 515 #define ALT_KEEP_CACHE 0x00080 516 #define CUMULATIVE_OP 0x00100 517 #define LOGICAL_OP 0x00200 518 #define IMM_OP 0x00400 519 #define SRC2_IMM 0x00800 520 521 #define UNUSED_DEST 0x01000 522 #define REG_DEST 0x02000 523 #define REG1_SOURCE 0x04000 524 #define REG2_SOURCE 0x08000 525 #define SLOW_SRC1 0x10000 526 #define SLOW_SRC2 0x20000 527 #define SLOW_DEST 0x40000 528 529 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 530 #define STACK_STORE SW 531 #define STACK_LOAD LW 532 #else 533 #define STACK_STORE SD 534 #define STACK_LOAD LD 535 #endif 536 537 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 538 #include "sljitNativeMIPS_32.c" 539 #else 540 #include "sljitNativeMIPS_64.c" 541 #endif 542 543 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler, 544 sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds, 545 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size) 546 { 547 sljit_ins base; 548 sljit_s32 i, tmp, offs; 549 550 CHECK_ERROR(); 551 CHECK(check_sljit_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size)); 552 set_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size); 553 554 local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1) + SLJIT_LOCALS_OFFSET; 555 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 556 local_size = (local_size + 15) & ~0xf; 557 #else 558 local_size = (local_size + 31) & ~0x1f; 559 #endif 560 compiler->local_size = local_size; 561 562 if (local_size <= SIMM_MAX) { 563 /* Frequent case. */ 564 FAIL_IF(push_inst(compiler, ADDIU_W | S(SLJIT_SP) | T(SLJIT_SP) | IMM(-local_size), DR(SLJIT_SP))); 565 base = S(SLJIT_SP); 566 } 567 else { 568 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size)); 569 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SP) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); 570 FAIL_IF(push_inst(compiler, SUBU_W | S(SLJIT_SP) | T(TMP_REG1) | D(SLJIT_SP), DR(SLJIT_SP))); 571 base = S(TMP_REG2); 572 local_size = 0; 573 } 574 575 offs = local_size - (sljit_sw)(sizeof(sljit_sw)); 576 FAIL_IF(push_inst(compiler, STACK_STORE | base | TA(RETURN_ADDR_REG) | IMM(offs), MOVABLE_INS)); 577 578 tmp = saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - saveds) : SLJIT_FIRST_SAVED_REG; 579 for (i = SLJIT_S0; i >= tmp; i--) { 580 offs -= (sljit_s32)(sizeof(sljit_sw)); 581 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(i) | IMM(offs), MOVABLE_INS)); 582 } 583 584 for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--) { 585 offs -= (sljit_s32)(sizeof(sljit_sw)); 586 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(i) | IMM(offs), MOVABLE_INS)); 587 } 588 589 if (args >= 1) 590 FAIL_IF(push_inst(compiler, ADDU_W | SA(4) | TA(0) | D(SLJIT_S0), DR(SLJIT_S0))); 591 if (args >= 2) 592 FAIL_IF(push_inst(compiler, ADDU_W | SA(5) | TA(0) | D(SLJIT_S1), DR(SLJIT_S1))); 593 if (args >= 3) 594 FAIL_IF(push_inst(compiler, ADDU_W | SA(6) | TA(0) | D(SLJIT_S2), DR(SLJIT_S2))); 595 596 return SLJIT_SUCCESS; 597 } 598 599 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler, 600 sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds, 601 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size) 602 { 603 CHECK_ERROR(); 604 CHECK(check_sljit_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size)); 605 set_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size); 606 607 local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1) + SLJIT_LOCALS_OFFSET; 608 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 609 compiler->local_size = (local_size + 15) & ~0xf; 610 #else 611 compiler->local_size = (local_size + 31) & ~0x1f; 612 #endif 613 return SLJIT_SUCCESS; 614 } 615 616 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw) 617 { 618 sljit_s32 local_size, i, tmp, offs; 619 sljit_ins base; 620 621 CHECK_ERROR(); 622 CHECK(check_sljit_emit_return(compiler, op, src, srcw)); 623 624 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw)); 625 626 local_size = compiler->local_size; 627 if (local_size <= SIMM_MAX) 628 base = S(SLJIT_SP); 629 else { 630 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size)); 631 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SP) | T(TMP_REG1) | D(TMP_REG1), DR(TMP_REG1))); 632 base = S(TMP_REG1); 633 local_size = 0; 634 } 635 636 FAIL_IF(push_inst(compiler, STACK_LOAD | base | TA(RETURN_ADDR_REG) | IMM(local_size - (sljit_s32)sizeof(sljit_sw)), RETURN_ADDR_REG)); 637 offs = local_size - (sljit_s32)GET_SAVED_REGISTERS_SIZE(compiler->scratches, compiler->saveds, 1); 638 639 tmp = compiler->scratches; 640 for (i = SLJIT_FIRST_SAVED_REG; i <= tmp; i++) { 641 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(i) | IMM(offs), DR(i))); 642 offs += (sljit_s32)(sizeof(sljit_sw)); 643 } 644 645 tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG; 646 for (i = tmp; i <= SLJIT_S0; i++) { 647 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(i) | IMM(offs), DR(i))); 648 offs += (sljit_s32)(sizeof(sljit_sw)); 649 } 650 651 SLJIT_ASSERT(offs == local_size - (sljit_sw)(sizeof(sljit_sw))); 652 653 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS)); 654 if (compiler->local_size <= SIMM_MAX) 655 return push_inst(compiler, ADDIU_W | S(SLJIT_SP) | T(SLJIT_SP) | IMM(compiler->local_size), UNMOVABLE_INS); 656 else 657 return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(SLJIT_SP), UNMOVABLE_INS); 658 } 659 660 #undef STACK_STORE 661 #undef STACK_LOAD 662 663 /* --------------------------------------------------------------------- */ 664 /* Operators */ 665 /* --------------------------------------------------------------------- */ 666 667 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 668 #define ARCH_32_64(a, b) a 669 #else 670 #define ARCH_32_64(a, b) b 671 #endif 672 673 static const sljit_ins data_transfer_insts[16 + 4] = { 674 /* u w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */), 675 /* u w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */), 676 /* u b s */ HI(40) /* sb */, 677 /* u b l */ HI(36) /* lbu */, 678 /* u h s */ HI(41) /* sh */, 679 /* u h l */ HI(37) /* lhu */, 680 /* u i s */ HI(43) /* sw */, 681 /* u i l */ ARCH_32_64(HI(35) /* lw */, HI(39) /* lwu */), 682 683 /* s w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */), 684 /* s w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */), 685 /* s b s */ HI(40) /* sb */, 686 /* s b l */ HI(32) /* lb */, 687 /* s h s */ HI(41) /* sh */, 688 /* s h l */ HI(33) /* lh */, 689 /* s i s */ HI(43) /* sw */, 690 /* s i l */ HI(35) /* lw */, 691 692 /* d s */ HI(61) /* sdc1 */, 693 /* d l */ HI(53) /* ldc1 */, 694 /* s s */ HI(57) /* swc1 */, 695 /* s l */ HI(49) /* lwc1 */, 696 }; 697 698 #undef ARCH_32_64 699 700 /* reg_ar is an absoulute register! */ 701 702 /* Can perform an operation using at most 1 instruction. */ 703 static sljit_s32 getput_arg_fast(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg_ar, sljit_s32 arg, sljit_sw argw) 704 { 705 SLJIT_ASSERT(arg & SLJIT_MEM); 706 707 if ((!(flags & WRITE_BACK) || !(arg & REG_MASK)) && !(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN) { 708 /* Works for both absoulte and relative addresses. */ 709 if (SLJIT_UNLIKELY(flags & ARG_TEST)) 710 return 1; 711 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(arg & REG_MASK) 712 | TA(reg_ar) | IMM(argw), ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? reg_ar : MOVABLE_INS)); 713 return -1; 714 } 715 return 0; 716 } 717 718 /* See getput_arg below. 719 Note: can_cache is called only for binary operators. Those 720 operators always uses word arguments without write back. */ 721 static sljit_s32 can_cache(sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw) 722 { 723 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM)); 724 725 /* Simple operation except for updates. */ 726 if (arg & OFFS_REG_MASK) { 727 argw &= 0x3; 728 next_argw &= 0x3; 729 if (argw && argw == next_argw && (arg == next_arg || (arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK))) 730 return 1; 731 return 0; 732 } 733 734 if (arg == next_arg) { 735 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN)) 736 return 1; 737 return 0; 738 } 739 740 return 0; 741 } 742 743 /* Emit the necessary instructions. See can_cache above. */ 744 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) 745 { 746 sljit_s32 tmp_ar, base, delay_slot; 747 748 SLJIT_ASSERT(arg & SLJIT_MEM); 749 if (!(next_arg & SLJIT_MEM)) { 750 next_arg = 0; 751 next_argw = 0; 752 } 753 754 if ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) { 755 tmp_ar = reg_ar; 756 delay_slot = reg_ar; 757 } else { 758 tmp_ar = DR(TMP_REG1); 759 delay_slot = MOVABLE_INS; 760 } 761 base = arg & REG_MASK; 762 763 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) { 764 if (SLJIT_UNLIKELY(flags & WRITE_BACK)) { 765 SLJIT_ASSERT(argw == 0); 766 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(OFFS_REG(arg)) | D(base), DR(base))); 767 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), delay_slot); 768 } 769 770 argw &= 0x3; 771 772 /* Using the cache. */ 773 if (argw == compiler->cache_argw) { 774 if (arg == compiler->cache_arg) 775 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 776 777 if ((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) { 778 if (arg == next_arg && argw == (next_argw & 0x3)) { 779 compiler->cache_arg = arg; 780 compiler->cache_argw = argw; 781 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(TMP_REG3), DR(TMP_REG3))); 782 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 783 } 784 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | DA(tmp_ar), tmp_ar)); 785 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 786 } 787 } 788 789 if (SLJIT_UNLIKELY(argw)) { 790 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK); 791 compiler->cache_argw = argw; 792 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(arg)) | D(TMP_REG3) | SH_IMM(argw), DR(TMP_REG3))); 793 } 794 795 if (arg == next_arg && argw == (next_argw & 0x3)) { 796 compiler->cache_arg = arg; 797 compiler->cache_argw = argw; 798 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | D(TMP_REG3), DR(TMP_REG3))); 799 tmp_ar = DR(TMP_REG3); 800 } 801 else 802 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | DA(tmp_ar), tmp_ar)); 803 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 804 } 805 806 if (SLJIT_UNLIKELY(flags & WRITE_BACK) && base) { 807 if (argw <= SIMM_MAX && argw >= SIMM_MIN) { 808 if (argw) 809 FAIL_IF(push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base))); 810 } 811 else { 812 if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { 813 if (argw != compiler->cache_argw) { 814 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 815 compiler->cache_argw = argw; 816 } 817 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); 818 } 819 else { 820 compiler->cache_arg = SLJIT_MEM; 821 compiler->cache_argw = argw; 822 FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); 823 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); 824 } 825 } 826 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), delay_slot); 827 } 828 829 if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { 830 if (argw != compiler->cache_argw) { 831 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 832 compiler->cache_argw = argw; 833 } 834 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 835 } 836 837 if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { 838 if (argw != compiler->cache_argw) 839 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 840 } 841 else { 842 compiler->cache_arg = SLJIT_MEM; 843 FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); 844 } 845 compiler->cache_argw = argw; 846 847 if (!base) 848 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 849 850 if (arg == next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN) { 851 compiler->cache_arg = arg; 852 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | D(TMP_REG3), DR(TMP_REG3))); 853 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot); 854 } 855 856 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | DA(tmp_ar), tmp_ar)); 857 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot); 858 } 859 860 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) 861 { 862 if (getput_arg_fast(compiler, flags, reg_ar, arg, argw)) 863 return compiler->error; 864 compiler->cache_arg = 0; 865 compiler->cache_argw = 0; 866 return getput_arg(compiler, flags, reg_ar, arg, argw, 0, 0); 867 } 868 869 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) 870 { 871 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w)) 872 return compiler->error; 873 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w); 874 } 875 876 static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags, 877 sljit_s32 dst, sljit_sw dstw, 878 sljit_s32 src1, sljit_sw src1w, 879 sljit_s32 src2, sljit_sw src2w) 880 { 881 /* arg1 goes to TMP_REG1 or src reg 882 arg2 goes to TMP_REG2, imm or src reg 883 TMP_REG3 can be used for caching 884 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */ 885 sljit_s32 dst_r = TMP_REG2; 886 sljit_s32 src1_r; 887 sljit_sw src2_r = 0; 888 sljit_s32 sugg_src2_r = TMP_REG2; 889 890 if (!(flags & ALT_KEEP_CACHE)) { 891 compiler->cache_arg = 0; 892 compiler->cache_argw = 0; 893 } 894 895 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) { 896 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_S32 && !(src2 & SLJIT_MEM)) 897 return SLJIT_SUCCESS; 898 if (HAS_FLAGS(op)) 899 flags |= UNUSED_DEST; 900 } 901 else if (FAST_IS_REG(dst)) { 902 dst_r = dst; 903 flags |= REG_DEST; 904 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_S32) 905 sugg_src2_r = dst_r; 906 } 907 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, DR(TMP_REG1), dst, dstw)) 908 flags |= SLOW_DEST; 909 910 if (flags & IMM_OP) { 911 if ((src2 & SLJIT_IMM) && src2w) { 912 if ((!(flags & LOGICAL_OP) && (src2w <= SIMM_MAX && src2w >= SIMM_MIN)) 913 || ((flags & LOGICAL_OP) && !(src2w & ~UIMM_MAX))) { 914 flags |= SRC2_IMM; 915 src2_r = src2w; 916 } 917 } 918 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) { 919 if ((!(flags & LOGICAL_OP) && (src1w <= SIMM_MAX && src1w >= SIMM_MIN)) 920 || ((flags & LOGICAL_OP) && !(src1w & ~UIMM_MAX))) { 921 flags |= SRC2_IMM; 922 src2_r = src1w; 923 924 /* And swap arguments. */ 925 src1 = src2; 926 src1w = src2w; 927 src2 = SLJIT_IMM; 928 /* src2w = src2_r unneeded. */ 929 } 930 } 931 } 932 933 /* Source 1. */ 934 if (FAST_IS_REG(src1)) { 935 src1_r = src1; 936 flags |= REG1_SOURCE; 937 } 938 else if (src1 & SLJIT_IMM) { 939 if (src1w) { 940 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); 941 src1_r = TMP_REG1; 942 } 943 else 944 src1_r = 0; 945 } 946 else { 947 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w)) 948 FAIL_IF(compiler->error); 949 else 950 flags |= SLOW_SRC1; 951 src1_r = TMP_REG1; 952 } 953 954 /* Source 2. */ 955 if (FAST_IS_REG(src2)) { 956 src2_r = src2; 957 flags |= REG2_SOURCE; 958 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_S32) 959 dst_r = src2_r; 960 } 961 else if (src2 & SLJIT_IMM) { 962 if (!(flags & SRC2_IMM)) { 963 if (src2w) { 964 FAIL_IF(load_immediate(compiler, DR(sugg_src2_r), src2w)); 965 src2_r = sugg_src2_r; 966 } 967 else { 968 src2_r = 0; 969 if ((op >= SLJIT_MOV && op <= SLJIT_MOVU_S32) && (dst & SLJIT_MEM)) 970 dst_r = 0; 971 } 972 } 973 } 974 else { 975 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w)) 976 FAIL_IF(compiler->error); 977 else 978 flags |= SLOW_SRC2; 979 src2_r = sugg_src2_r; 980 } 981 982 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 983 SLJIT_ASSERT(src2_r == TMP_REG2); 984 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 985 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, src1, src1w)); 986 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw)); 987 } 988 else { 989 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, src2, src2w)); 990 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, dst, dstw)); 991 } 992 } 993 else if (flags & SLOW_SRC1) 994 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw)); 995 else if (flags & SLOW_SRC2) 996 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w, dst, dstw)); 997 998 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r)); 999 1000 if (dst & SLJIT_MEM) { 1001 if (!(flags & SLOW_DEST)) { 1002 getput_arg_fast(compiler, flags, DR(dst_r), dst, dstw); 1003 return compiler->error; 1004 } 1005 return getput_arg(compiler, flags, DR(dst_r), dst, dstw, 0, 0); 1006 } 1007 1008 return SLJIT_SUCCESS; 1009 } 1010 1011 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op) 1012 { 1013 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1014 sljit_s32 int_op = op & SLJIT_I32_OP; 1015 #endif 1016 1017 CHECK_ERROR(); 1018 CHECK(check_sljit_emit_op0(compiler, op)); 1019 1020 op = GET_OPCODE(op); 1021 switch (op) { 1022 case SLJIT_BREAKPOINT: 1023 return push_inst(compiler, BREAK, UNMOVABLE_INS); 1024 case SLJIT_NOP: 1025 return push_inst(compiler, NOP, UNMOVABLE_INS); 1026 case SLJIT_LMUL_UW: 1027 case SLJIT_LMUL_SW: 1028 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1029 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? DMULTU : DMULT) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1030 #else 1031 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? MULTU : MULT) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1032 #endif 1033 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_R0), DR(SLJIT_R0))); 1034 return push_inst(compiler, MFHI | D(SLJIT_R1), DR(SLJIT_R1)); 1035 case SLJIT_DIVMOD_UW: 1036 case SLJIT_DIVMOD_SW: 1037 case SLJIT_DIV_UW: 1038 case SLJIT_DIV_SW: 1039 SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments); 1040 #if !(defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1) 1041 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1042 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1043 #endif 1044 1045 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1046 if (int_op) 1047 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1048 else 1049 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DDIVU : DDIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1050 #else 1051 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS)); 1052 #endif 1053 1054 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_R0), DR(SLJIT_R0))); 1055 return (op >= SLJIT_DIV_UW) ? SLJIT_SUCCESS : push_inst(compiler, MFHI | D(SLJIT_R1), DR(SLJIT_R1)); 1056 } 1057 1058 return SLJIT_SUCCESS; 1059 } 1060 1061 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op, 1062 sljit_s32 dst, sljit_sw dstw, 1063 sljit_s32 src, sljit_sw srcw) 1064 { 1065 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1066 # define flags 0 1067 #else 1068 sljit_s32 flags = 0; 1069 #endif 1070 1071 CHECK_ERROR(); 1072 CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw)); 1073 ADJUST_LOCAL_OFFSET(dst, dstw); 1074 ADJUST_LOCAL_OFFSET(src, srcw); 1075 1076 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1077 if ((op & SLJIT_I32_OP) && GET_OPCODE(op) >= SLJIT_NOT) { 1078 flags |= INT_DATA | SIGNED_DATA; 1079 if (src & SLJIT_IMM) 1080 srcw = (sljit_s32)srcw; 1081 } 1082 #endif 1083 1084 switch (GET_OPCODE(op)) { 1085 case SLJIT_MOV: 1086 case SLJIT_MOV_P: 1087 return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 1088 1089 case SLJIT_MOV_U32: 1090 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1091 return emit_op(compiler, SLJIT_MOV_U32, INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 1092 #else 1093 return emit_op(compiler, SLJIT_MOV_U32, INT_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u32)srcw : srcw); 1094 #endif 1095 1096 case SLJIT_MOV_S32: 1097 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1098 return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 1099 #else 1100 return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s32)srcw : srcw); 1101 #endif 1102 1103 case SLJIT_MOV_U8: 1104 return emit_op(compiler, SLJIT_MOV_U8, BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw); 1105 1106 case SLJIT_MOV_S8: 1107 return emit_op(compiler, SLJIT_MOV_S8, BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw); 1108 1109 case SLJIT_MOV_U16: 1110 return emit_op(compiler, SLJIT_MOV_U16, HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw); 1111 1112 case SLJIT_MOV_S16: 1113 return emit_op(compiler, SLJIT_MOV_S16, HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw); 1114 1115 case SLJIT_MOVU: 1116 case SLJIT_MOVU_P: 1117 return emit_op(compiler, SLJIT_MOV, WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 1118 1119 case SLJIT_MOVU_U32: 1120 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1121 return emit_op(compiler, SLJIT_MOV_U32, INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 1122 #else 1123 return emit_op(compiler, SLJIT_MOV_U32, INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u32)srcw : srcw); 1124 #endif 1125 1126 case SLJIT_MOVU_S32: 1127 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1128 return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 1129 #else 1130 return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s32)srcw : srcw); 1131 #endif 1132 1133 case SLJIT_MOVU_U8: 1134 return emit_op(compiler, SLJIT_MOV_U8, BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw); 1135 1136 case SLJIT_MOVU_S8: 1137 return emit_op(compiler, SLJIT_MOV_S8, BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw); 1138 1139 case SLJIT_MOVU_U16: 1140 return emit_op(compiler, SLJIT_MOV_U16, HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw); 1141 1142 case SLJIT_MOVU_S16: 1143 return emit_op(compiler, SLJIT_MOV_S16, HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw); 1144 1145 case SLJIT_NOT: 1146 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw); 1147 1148 case SLJIT_NEG: 1149 return emit_op(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw); 1150 1151 case SLJIT_CLZ: 1152 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw); 1153 } 1154 1155 return SLJIT_SUCCESS; 1156 1157 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1158 # undef flags 1159 #endif 1160 } 1161 1162 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op, 1163 sljit_s32 dst, sljit_sw dstw, 1164 sljit_s32 src1, sljit_sw src1w, 1165 sljit_s32 src2, sljit_sw src2w) 1166 { 1167 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1168 # define flags 0 1169 #else 1170 sljit_s32 flags = 0; 1171 #endif 1172 1173 CHECK_ERROR(); 1174 CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w)); 1175 ADJUST_LOCAL_OFFSET(dst, dstw); 1176 ADJUST_LOCAL_OFFSET(src1, src1w); 1177 ADJUST_LOCAL_OFFSET(src2, src2w); 1178 1179 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1180 if (op & SLJIT_I32_OP) { 1181 flags |= INT_DATA | SIGNED_DATA; 1182 if (src1 & SLJIT_IMM) 1183 src1w = (sljit_s32)src1w; 1184 if (src2 & SLJIT_IMM) 1185 src2w = (sljit_s32)src2w; 1186 } 1187 #endif 1188 1189 switch (GET_OPCODE(op)) { 1190 case SLJIT_ADD: 1191 case SLJIT_ADDC: 1192 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1193 1194 case SLJIT_SUB: 1195 case SLJIT_SUBC: 1196 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1197 1198 case SLJIT_MUL: 1199 return emit_op(compiler, op, flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w); 1200 1201 case SLJIT_AND: 1202 case SLJIT_OR: 1203 case SLJIT_XOR: 1204 return emit_op(compiler, op, flags | CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1205 1206 case SLJIT_SHL: 1207 case SLJIT_LSHR: 1208 case SLJIT_ASHR: 1209 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1210 if (src2 & SLJIT_IMM) 1211 src2w &= 0x1f; 1212 #else 1213 if (src2 & SLJIT_IMM) { 1214 if (op & SLJIT_I32_OP) 1215 src2w &= 0x1f; 1216 else 1217 src2w &= 0x3f; 1218 } 1219 #endif 1220 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 1221 } 1222 1223 return SLJIT_SUCCESS; 1224 1225 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1226 # undef flags 1227 #endif 1228 } 1229 1230 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg) 1231 { 1232 CHECK_REG_INDEX(check_sljit_get_register_index(reg)); 1233 return reg_map[reg]; 1234 } 1235 1236 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg) 1237 { 1238 CHECK_REG_INDEX(check_sljit_get_float_register_index(reg)); 1239 return reg << 1; 1240 } 1241 1242 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler, 1243 void *instruction, sljit_s32 size) 1244 { 1245 CHECK_ERROR(); 1246 CHECK(check_sljit_emit_op_custom(compiler, instruction, size)); 1247 1248 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS); 1249 } 1250 1251 /* --------------------------------------------------------------------- */ 1252 /* Floating point operators */ 1253 /* --------------------------------------------------------------------- */ 1254 1255 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_is_fpu_available(void) 1256 { 1257 #ifdef SLJIT_IS_FPU_AVAILABLE 1258 return SLJIT_IS_FPU_AVAILABLE; 1259 #elif defined(__GNUC__) 1260 sljit_sw fir; 1261 asm ("cfc1 %0, $0" : "=r"(fir)); 1262 return (fir >> 22) & 0x1; 1263 #else 1264 #error "FIR check is not implemented for this architecture" 1265 #endif 1266 } 1267 1268 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_F32_OP) >> 7)) 1269 #define FMT(op) (((op & SLJIT_F32_OP) ^ SLJIT_F32_OP) << (21 - 8)) 1270 1271 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op, 1272 sljit_s32 dst, sljit_sw dstw, 1273 sljit_s32 src, sljit_sw srcw) 1274 { 1275 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1276 # define flags 0 1277 #else 1278 sljit_s32 flags = (GET_OPCODE(op) == SLJIT_CONV_SW_FROM_F64) << 21; 1279 #endif 1280 1281 if (src & SLJIT_MEM) { 1282 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw)); 1283 src = TMP_FREG1; 1284 } 1285 else 1286 src <<= 1; 1287 1288 FAIL_IF(push_inst(compiler, (TRUNC_W_S ^ (flags >> 19)) | FMT(op) | FS(src) | FD(TMP_FREG1), MOVABLE_INS)); 1289 1290 if (dst == SLJIT_UNUSED) 1291 return SLJIT_SUCCESS; 1292 1293 if (FAST_IS_REG(dst)) 1294 return push_inst(compiler, MFC1 | flags | T(dst) | FS(TMP_FREG1), MOVABLE_INS); 1295 1296 /* Store the integer value from a VFP register. */ 1297 return emit_op_mem2(compiler, flags ? DOUBLE_DATA : SINGLE_DATA, TMP_FREG1, dst, dstw, 0, 0); 1298 1299 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1300 # undef is_long 1301 #endif 1302 } 1303 1304 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op, 1305 sljit_s32 dst, sljit_sw dstw, 1306 sljit_s32 src, sljit_sw srcw) 1307 { 1308 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1309 # define flags 0 1310 #else 1311 sljit_s32 flags = (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_SW) << 21; 1312 #endif 1313 1314 sljit_s32 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1; 1315 1316 if (FAST_IS_REG(src)) 1317 FAIL_IF(push_inst(compiler, MTC1 | flags | T(src) | FS(TMP_FREG1), MOVABLE_INS)); 1318 else if (src & SLJIT_MEM) { 1319 /* Load the integer value into a VFP register. */ 1320 FAIL_IF(emit_op_mem2(compiler, ((flags) ? DOUBLE_DATA : SINGLE_DATA) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw)); 1321 } 1322 else { 1323 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) 1324 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32) 1325 srcw = (sljit_s32)srcw; 1326 #endif 1327 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw)); 1328 FAIL_IF(push_inst(compiler, MTC1 | flags | T(TMP_REG1) | FS(TMP_FREG1), MOVABLE_INS)); 1329 } 1330 1331 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)); 1332 1333 if (dst & SLJIT_MEM) 1334 return emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, 0, 0); 1335 return SLJIT_SUCCESS; 1336 1337 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1338 # undef flags 1339 #endif 1340 } 1341 1342 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op, 1343 sljit_s32 src1, sljit_sw src1w, 1344 sljit_s32 src2, sljit_sw src2w) 1345 { 1346 sljit_ins inst; 1347 1348 if (src1 & SLJIT_MEM) { 1349 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w)); 1350 src1 = TMP_FREG1; 1351 } 1352 else 1353 src1 <<= 1; 1354 1355 if (src2 & SLJIT_MEM) { 1356 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0)); 1357 src2 = TMP_FREG2; 1358 } 1359 else 1360 src2 <<= 1; 1361 1362 switch (GET_FLAG_TYPE(op)) { 1363 case SLJIT_EQUAL_F64: 1364 case SLJIT_NOT_EQUAL_F64: 1365 inst = C_UEQ_S; 1366 break; 1367 case SLJIT_LESS_F64: 1368 case SLJIT_GREATER_EQUAL_F64: 1369 inst = C_ULT_S; 1370 break; 1371 case SLJIT_GREATER_F64: 1372 case SLJIT_LESS_EQUAL_F64: 1373 inst = C_ULE_S; 1374 break; 1375 default: 1376 SLJIT_ASSERT(GET_FLAG_TYPE(op) == SLJIT_UNORDERED_F64 || GET_FLAG_TYPE(op) == SLJIT_ORDERED_F64); 1377 inst = C_UN_S; 1378 break; 1379 } 1380 1381 return push_inst(compiler, inst | FMT(op) | FT(src2) | FS(src1), UNMOVABLE_INS); 1382 } 1383 1384 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op, 1385 sljit_s32 dst, sljit_sw dstw, 1386 sljit_s32 src, sljit_sw srcw) 1387 { 1388 sljit_s32 dst_r; 1389 1390 CHECK_ERROR(); 1391 compiler->cache_arg = 0; 1392 compiler->cache_argw = 0; 1393 1394 SLJIT_COMPILE_ASSERT((SLJIT_F32_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error); 1395 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw); 1396 1397 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32) 1398 op ^= SLJIT_F32_OP; 1399 1400 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1; 1401 1402 if (src & SLJIT_MEM) { 1403 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, dst, dstw)); 1404 src = dst_r; 1405 } 1406 else 1407 src <<= 1; 1408 1409 switch (GET_OPCODE(op)) { 1410 case SLJIT_MOV_F64: 1411 if (src != dst_r) { 1412 if (dst_r != TMP_FREG1) 1413 FAIL_IF(push_inst(compiler, MOV_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS)); 1414 else 1415 dst_r = src; 1416 } 1417 break; 1418 case SLJIT_NEG_F64: 1419 FAIL_IF(push_inst(compiler, NEG_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS)); 1420 break; 1421 case SLJIT_ABS_F64: 1422 FAIL_IF(push_inst(compiler, ABS_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS)); 1423 break; 1424 case SLJIT_CONV_F64_FROM_F32: 1425 FAIL_IF(push_inst(compiler, CVT_S_S | ((op & SLJIT_F32_OP) ? 1 : (1 << 21)) | FS(src) | FD(dst_r), MOVABLE_INS)); 1426 op ^= SLJIT_F32_OP; 1427 break; 1428 } 1429 1430 if (dst & SLJIT_MEM) 1431 return emit_op_mem2(compiler, FLOAT_DATA(op), dst_r, dst, dstw, 0, 0); 1432 return SLJIT_SUCCESS; 1433 } 1434 1435 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op, 1436 sljit_s32 dst, sljit_sw dstw, 1437 sljit_s32 src1, sljit_sw src1w, 1438 sljit_s32 src2, sljit_sw src2w) 1439 { 1440 sljit_s32 dst_r, flags = 0; 1441 1442 CHECK_ERROR(); 1443 CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w)); 1444 ADJUST_LOCAL_OFFSET(dst, dstw); 1445 ADJUST_LOCAL_OFFSET(src1, src1w); 1446 ADJUST_LOCAL_OFFSET(src2, src2w); 1447 1448 compiler->cache_arg = 0; 1449 compiler->cache_argw = 0; 1450 1451 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG2; 1452 1453 if (src1 & SLJIT_MEM) { 1454 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) { 1455 FAIL_IF(compiler->error); 1456 src1 = TMP_FREG1; 1457 } else 1458 flags |= SLOW_SRC1; 1459 } 1460 else 1461 src1 <<= 1; 1462 1463 if (src2 & SLJIT_MEM) { 1464 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) { 1465 FAIL_IF(compiler->error); 1466 src2 = TMP_FREG2; 1467 } else 1468 flags |= SLOW_SRC2; 1469 } 1470 else 1471 src2 <<= 1; 1472 1473 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 1474 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 1475 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w)); 1476 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw)); 1477 } 1478 else { 1479 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w)); 1480 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw)); 1481 } 1482 } 1483 else if (flags & SLOW_SRC1) 1484 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw)); 1485 else if (flags & SLOW_SRC2) 1486 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw)); 1487 1488 if (flags & SLOW_SRC1) 1489 src1 = TMP_FREG1; 1490 if (flags & SLOW_SRC2) 1491 src2 = TMP_FREG2; 1492 1493 switch (GET_OPCODE(op)) { 1494 case SLJIT_ADD_F64: 1495 FAIL_IF(push_inst(compiler, ADD_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS)); 1496 break; 1497 1498 case SLJIT_SUB_F64: 1499 FAIL_IF(push_inst(compiler, SUB_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS)); 1500 break; 1501 1502 case SLJIT_MUL_F64: 1503 FAIL_IF(push_inst(compiler, MUL_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS)); 1504 break; 1505 1506 case SLJIT_DIV_F64: 1507 FAIL_IF(push_inst(compiler, DIV_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS)); 1508 break; 1509 } 1510 1511 if (dst_r == TMP_FREG2) 1512 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0)); 1513 1514 return SLJIT_SUCCESS; 1515 } 1516 1517 /* --------------------------------------------------------------------- */ 1518 /* Other instructions */ 1519 /* --------------------------------------------------------------------- */ 1520 1521 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw) 1522 { 1523 CHECK_ERROR(); 1524 CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw)); 1525 ADJUST_LOCAL_OFFSET(dst, dstw); 1526 1527 /* For UNUSED dst. Uncommon, but possible. */ 1528 if (dst == SLJIT_UNUSED) 1529 return SLJIT_SUCCESS; 1530 1531 if (FAST_IS_REG(dst)) 1532 return push_inst(compiler, ADDU_W | SA(RETURN_ADDR_REG) | TA(0) | D(dst), DR(dst)); 1533 1534 /* Memory. */ 1535 return emit_op_mem(compiler, WORD_DATA, RETURN_ADDR_REG, dst, dstw); 1536 } 1537 1538 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src, sljit_sw srcw) 1539 { 1540 CHECK_ERROR(); 1541 CHECK(check_sljit_emit_fast_return(compiler, src, srcw)); 1542 ADJUST_LOCAL_OFFSET(src, srcw); 1543 1544 if (FAST_IS_REG(src)) 1545 FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | DA(RETURN_ADDR_REG), RETURN_ADDR_REG)); 1546 else if (src & SLJIT_MEM) 1547 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, RETURN_ADDR_REG, src, srcw)); 1548 else if (src & SLJIT_IMM) 1549 FAIL_IF(load_immediate(compiler, RETURN_ADDR_REG, srcw)); 1550 1551 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1552 return push_inst(compiler, NOP, UNMOVABLE_INS); 1553 } 1554 1555 /* --------------------------------------------------------------------- */ 1556 /* Conditional instructions */ 1557 /* --------------------------------------------------------------------- */ 1558 1559 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler) 1560 { 1561 struct sljit_label *label; 1562 1563 CHECK_ERROR_PTR(); 1564 CHECK_PTR(check_sljit_emit_label(compiler)); 1565 1566 if (compiler->last_label && compiler->last_label->size == compiler->size) 1567 return compiler->last_label; 1568 1569 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label)); 1570 PTR_FAIL_IF(!label); 1571 set_label(label, compiler); 1572 compiler->delay_slot = UNMOVABLE_INS; 1573 return label; 1574 } 1575 1576 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1577 #define JUMP_LENGTH 4 1578 #else 1579 #define JUMP_LENGTH 8 1580 #endif 1581 1582 #define BR_Z(src) \ 1583 inst = BEQ | SA(src) | TA(0) | JUMP_LENGTH; \ 1584 flags = IS_BIT26_COND; \ 1585 delay_check = src; 1586 1587 #define BR_NZ(src) \ 1588 inst = BNE | SA(src) | TA(0) | JUMP_LENGTH; \ 1589 flags = IS_BIT26_COND; \ 1590 delay_check = src; 1591 1592 #define BR_T() \ 1593 inst = BC1T | JUMP_LENGTH; \ 1594 flags = IS_BIT16_COND; \ 1595 delay_check = FCSR_FCC; 1596 1597 #define BR_F() \ 1598 inst = BC1F | JUMP_LENGTH; \ 1599 flags = IS_BIT16_COND; \ 1600 delay_check = FCSR_FCC; 1601 1602 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type) 1603 { 1604 struct sljit_jump *jump; 1605 sljit_ins inst; 1606 sljit_s32 flags = 0; 1607 sljit_s32 delay_check = UNMOVABLE_INS; 1608 1609 CHECK_ERROR_PTR(); 1610 CHECK_PTR(check_sljit_emit_jump(compiler, type)); 1611 1612 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1613 PTR_FAIL_IF(!jump); 1614 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1615 type &= 0xff; 1616 1617 switch (type) { 1618 case SLJIT_EQUAL: 1619 BR_NZ(EQUAL_FLAG); 1620 break; 1621 case SLJIT_NOT_EQUAL: 1622 BR_Z(EQUAL_FLAG); 1623 break; 1624 case SLJIT_LESS: 1625 case SLJIT_GREATER: 1626 case SLJIT_SIG_LESS: 1627 case SLJIT_SIG_GREATER: 1628 case SLJIT_OVERFLOW: 1629 case SLJIT_MUL_OVERFLOW: 1630 BR_Z(OTHER_FLAG); 1631 break; 1632 case SLJIT_GREATER_EQUAL: 1633 case SLJIT_LESS_EQUAL: 1634 case SLJIT_SIG_GREATER_EQUAL: 1635 case SLJIT_SIG_LESS_EQUAL: 1636 case SLJIT_NOT_OVERFLOW: 1637 case SLJIT_MUL_NOT_OVERFLOW: 1638 BR_NZ(OTHER_FLAG); 1639 break; 1640 case SLJIT_NOT_EQUAL_F64: 1641 case SLJIT_GREATER_EQUAL_F64: 1642 case SLJIT_GREATER_F64: 1643 case SLJIT_ORDERED_F64: 1644 BR_T(); 1645 break; 1646 case SLJIT_EQUAL_F64: 1647 case SLJIT_LESS_F64: 1648 case SLJIT_LESS_EQUAL_F64: 1649 case SLJIT_UNORDERED_F64: 1650 BR_F(); 1651 break; 1652 default: 1653 /* Not conditional branch. */ 1654 inst = 0; 1655 break; 1656 } 1657 1658 jump->flags |= flags; 1659 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != delay_check)) 1660 jump->flags |= IS_MOVABLE; 1661 1662 if (inst) 1663 PTR_FAIL_IF(push_inst(compiler, inst, UNMOVABLE_INS)); 1664 1665 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1666 if (type <= SLJIT_JUMP) { 1667 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); 1668 jump->addr = compiler->size; 1669 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1670 } else { 1671 SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG2); 1672 /* Cannot be optimized out if type is >= CALL0. */ 1673 jump->flags |= IS_JAL | (type >= SLJIT_CALL0 ? IS_CALL : 0); 1674 PTR_FAIL_IF(push_inst(compiler, JALR | S(TMP_REG2) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1675 jump->addr = compiler->size; 1676 /* A NOP if type < CALL1. */ 1677 PTR_FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_R0) | TA(0) | DA(4), UNMOVABLE_INS)); 1678 } 1679 return jump; 1680 } 1681 1682 #define RESOLVE_IMM1() \ 1683 if (src1 & SLJIT_IMM) { \ 1684 if (src1w) { \ 1685 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); \ 1686 src1 = TMP_REG1; \ 1687 } \ 1688 else \ 1689 src1 = 0; \ 1690 } 1691 1692 #define RESOLVE_IMM2() \ 1693 if (src2 & SLJIT_IMM) { \ 1694 if (src2w) { \ 1695 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG2), src2w)); \ 1696 src2 = TMP_REG2; \ 1697 } \ 1698 else \ 1699 src2 = 0; \ 1700 } 1701 1702 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, sljit_s32 type, 1703 sljit_s32 src1, sljit_sw src1w, 1704 sljit_s32 src2, sljit_sw src2w) 1705 { 1706 struct sljit_jump *jump; 1707 sljit_s32 flags; 1708 sljit_ins inst; 1709 1710 CHECK_ERROR_PTR(); 1711 CHECK_PTR(check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w)); 1712 ADJUST_LOCAL_OFFSET(src1, src1w); 1713 ADJUST_LOCAL_OFFSET(src2, src2w); 1714 1715 compiler->cache_arg = 0; 1716 compiler->cache_argw = 0; 1717 flags = ((type & SLJIT_I32_OP) ? INT_DATA : WORD_DATA) | LOAD_DATA; 1718 if (src1 & SLJIT_MEM) { 1719 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG1), src1, src1w, src2, src2w)); 1720 src1 = TMP_REG1; 1721 } 1722 if (src2 & SLJIT_MEM) { 1723 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG2), src2, src2w, 0, 0)); 1724 src2 = TMP_REG2; 1725 } 1726 1727 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1728 PTR_FAIL_IF(!jump); 1729 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1730 type &= 0xff; 1731 1732 if (type <= SLJIT_NOT_EQUAL) { 1733 RESOLVE_IMM1(); 1734 RESOLVE_IMM2(); 1735 jump->flags |= IS_BIT26_COND; 1736 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != DR(src1) && compiler->delay_slot != DR(src2))) 1737 jump->flags |= IS_MOVABLE; 1738 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_EQUAL ? BNE : BEQ) | S(src1) | T(src2) | JUMP_LENGTH, UNMOVABLE_INS)); 1739 } 1740 else if (type >= SLJIT_SIG_LESS && (((src1 & SLJIT_IMM) && (src1w == 0)) || ((src2 & SLJIT_IMM) && (src2w == 0)))) { 1741 inst = NOP; 1742 if ((src1 & SLJIT_IMM) && (src1w == 0)) { 1743 RESOLVE_IMM2(); 1744 switch (type) { 1745 case SLJIT_SIG_LESS: 1746 inst = BLEZ; 1747 jump->flags |= IS_BIT26_COND; 1748 break; 1749 case SLJIT_SIG_GREATER_EQUAL: 1750 inst = BGTZ; 1751 jump->flags |= IS_BIT26_COND; 1752 break; 1753 case SLJIT_SIG_GREATER: 1754 inst = BGEZ; 1755 jump->flags |= IS_BIT16_COND; 1756 break; 1757 case SLJIT_SIG_LESS_EQUAL: 1758 inst = BLTZ; 1759 jump->flags |= IS_BIT16_COND; 1760 break; 1761 } 1762 src1 = src2; 1763 } 1764 else { 1765 RESOLVE_IMM1(); 1766 switch (type) { 1767 case SLJIT_SIG_LESS: 1768 inst = BGEZ; 1769 jump->flags |= IS_BIT16_COND; 1770 break; 1771 case SLJIT_SIG_GREATER_EQUAL: 1772 inst = BLTZ; 1773 jump->flags |= IS_BIT16_COND; 1774 break; 1775 case SLJIT_SIG_GREATER: 1776 inst = BLEZ; 1777 jump->flags |= IS_BIT26_COND; 1778 break; 1779 case SLJIT_SIG_LESS_EQUAL: 1780 inst = BGTZ; 1781 jump->flags |= IS_BIT26_COND; 1782 break; 1783 } 1784 } 1785 PTR_FAIL_IF(push_inst(compiler, inst | S(src1) | JUMP_LENGTH, UNMOVABLE_INS)); 1786 } 1787 else { 1788 if (type == SLJIT_LESS || type == SLJIT_GREATER_EQUAL || type == SLJIT_SIG_LESS || type == SLJIT_SIG_GREATER_EQUAL) { 1789 RESOLVE_IMM1(); 1790 if ((src2 & SLJIT_IMM) && src2w <= SIMM_MAX && src2w >= SIMM_MIN) 1791 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTIU : SLTI) | S(src1) | T(TMP_REG1) | IMM(src2w), DR(TMP_REG1))); 1792 else { 1793 RESOLVE_IMM2(); 1794 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTU : SLT) | S(src1) | T(src2) | D(TMP_REG1), DR(TMP_REG1))); 1795 } 1796 type = (type == SLJIT_LESS || type == SLJIT_SIG_LESS) ? SLJIT_NOT_EQUAL : SLJIT_EQUAL; 1797 } 1798 else { 1799 RESOLVE_IMM2(); 1800 if ((src1 & SLJIT_IMM) && src1w <= SIMM_MAX && src1w >= SIMM_MIN) 1801 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTIU : SLTI) | S(src2) | T(TMP_REG1) | IMM(src1w), DR(TMP_REG1))); 1802 else { 1803 RESOLVE_IMM1(); 1804 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTU : SLT) | S(src2) | T(src1) | D(TMP_REG1), DR(TMP_REG1))); 1805 } 1806 type = (type == SLJIT_GREATER || type == SLJIT_SIG_GREATER) ? SLJIT_NOT_EQUAL : SLJIT_EQUAL; 1807 } 1808 1809 jump->flags |= IS_BIT26_COND; 1810 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_EQUAL ? BNE : BEQ) | S(TMP_REG1) | TA(0) | JUMP_LENGTH, UNMOVABLE_INS)); 1811 } 1812 1813 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1814 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); 1815 jump->addr = compiler->size; 1816 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1817 return jump; 1818 } 1819 1820 #undef RESOLVE_IMM1 1821 #undef RESOLVE_IMM2 1822 1823 #undef JUMP_LENGTH 1824 #undef BR_Z 1825 #undef BR_NZ 1826 #undef BR_T 1827 #undef BR_F 1828 1829 #undef FLOAT_DATA 1830 #undef FMT 1831 1832 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw) 1833 { 1834 sljit_s32 src_r = TMP_REG2; 1835 struct sljit_jump *jump = NULL; 1836 1837 CHECK_ERROR(); 1838 CHECK(check_sljit_emit_ijump(compiler, type, src, srcw)); 1839 ADJUST_LOCAL_OFFSET(src, srcw); 1840 1841 if (FAST_IS_REG(src)) { 1842 if (DR(src) != 4) 1843 src_r = src; 1844 else 1845 FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); 1846 } 1847 1848 if (type >= SLJIT_CALL0) { 1849 SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG2); 1850 if (src & (SLJIT_IMM | SLJIT_MEM)) { 1851 if (src & SLJIT_IMM) 1852 FAIL_IF(load_immediate(compiler, DR(PIC_ADDR_REG), srcw)); 1853 else { 1854 SLJIT_ASSERT(src_r == TMP_REG2 && (src & SLJIT_MEM)); 1855 FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw)); 1856 } 1857 FAIL_IF(push_inst(compiler, JALR | S(PIC_ADDR_REG) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1858 /* We need an extra instruction in any case. */ 1859 return push_inst(compiler, ADDU_W | S(SLJIT_R0) | TA(0) | DA(4), UNMOVABLE_INS); 1860 } 1861 1862 /* Register input. */ 1863 if (type >= SLJIT_CALL1) 1864 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_R0) | TA(0) | DA(4), 4)); 1865 FAIL_IF(push_inst(compiler, JALR | S(src_r) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); 1866 return push_inst(compiler, ADDU_W | S(src_r) | TA(0) | D(PIC_ADDR_REG), UNMOVABLE_INS); 1867 } 1868 1869 if (src & SLJIT_IMM) { 1870 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1871 FAIL_IF(!jump); 1872 set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_JAL : 0)); 1873 jump->u.target = srcw; 1874 1875 if (compiler->delay_slot != UNMOVABLE_INS) 1876 jump->flags |= IS_MOVABLE; 1877 1878 FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1879 } 1880 else if (src & SLJIT_MEM) 1881 FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw)); 1882 1883 FAIL_IF(push_inst(compiler, JR | S(src_r), UNMOVABLE_INS)); 1884 if (jump) 1885 jump->addr = compiler->size; 1886 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1887 return SLJIT_SUCCESS; 1888 } 1889 1890 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op, 1891 sljit_s32 dst, sljit_sw dstw, 1892 sljit_s32 src, sljit_sw srcw, 1893 sljit_s32 type) 1894 { 1895 sljit_s32 sugg_dst_ar, dst_ar; 1896 sljit_s32 flags = GET_ALL_FLAGS(op); 1897 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1898 # define mem_type WORD_DATA 1899 #else 1900 sljit_s32 mem_type = (op & SLJIT_I32_OP) ? (INT_DATA | SIGNED_DATA) : WORD_DATA; 1901 #endif 1902 1903 CHECK_ERROR(); 1904 CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type)); 1905 ADJUST_LOCAL_OFFSET(dst, dstw); 1906 1907 if (dst == SLJIT_UNUSED) 1908 return SLJIT_SUCCESS; 1909 1910 op = GET_OPCODE(op); 1911 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 1912 if (op == SLJIT_MOV_S32 || op == SLJIT_MOV_U32) 1913 mem_type = INT_DATA | SIGNED_DATA; 1914 #endif 1915 sugg_dst_ar = DR((op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2); 1916 1917 compiler->cache_arg = 0; 1918 compiler->cache_argw = 0; 1919 if (op >= SLJIT_ADD && (src & SLJIT_MEM)) { 1920 ADJUST_LOCAL_OFFSET(src, srcw); 1921 FAIL_IF(emit_op_mem2(compiler, mem_type | LOAD_DATA, DR(TMP_REG1), src, srcw, dst, dstw)); 1922 src = TMP_REG1; 1923 srcw = 0; 1924 } 1925 1926 switch (type & 0xff) { 1927 case SLJIT_EQUAL: 1928 case SLJIT_NOT_EQUAL: 1929 FAIL_IF(push_inst(compiler, SLTIU | SA(EQUAL_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); 1930 dst_ar = sugg_dst_ar; 1931 break; 1932 case SLJIT_MUL_OVERFLOW: 1933 case SLJIT_MUL_NOT_OVERFLOW: 1934 FAIL_IF(push_inst(compiler, SLTIU | SA(OTHER_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); 1935 dst_ar = sugg_dst_ar; 1936 type ^= 0x1; /* Flip type bit for the XORI below. */ 1937 break; 1938 case SLJIT_GREATER_F64: 1939 case SLJIT_LESS_EQUAL_F64: 1940 type ^= 0x1; /* Flip type bit for the XORI below. */ 1941 /* Fall through. */ 1942 case SLJIT_EQUAL_F64: 1943 case SLJIT_NOT_EQUAL_F64: 1944 case SLJIT_LESS_F64: 1945 case SLJIT_GREATER_EQUAL_F64: 1946 case SLJIT_UNORDERED_F64: 1947 case SLJIT_ORDERED_F64: 1948 FAIL_IF(push_inst(compiler, CFC1 | TA(sugg_dst_ar) | DA(FCSR_REG), sugg_dst_ar)); 1949 FAIL_IF(push_inst(compiler, SRL | TA(sugg_dst_ar) | DA(sugg_dst_ar) | SH_IMM(23), sugg_dst_ar)); 1950 FAIL_IF(push_inst(compiler, ANDI | SA(sugg_dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); 1951 dst_ar = sugg_dst_ar; 1952 break; 1953 1954 default: 1955 dst_ar = OTHER_FLAG; 1956 break; 1957 } 1958 1959 if (type & 0x1) { 1960 FAIL_IF(push_inst(compiler, XORI | SA(dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); 1961 dst_ar = sugg_dst_ar; 1962 } 1963 1964 if (op >= SLJIT_ADD) { 1965 if (DR(TMP_REG2) != dst_ar) 1966 FAIL_IF(push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); 1967 return emit_op(compiler, op | flags, mem_type | CUMULATIVE_OP | LOGICAL_OP | IMM_OP | ALT_KEEP_CACHE, dst, dstw, src, srcw, TMP_REG2, 0); 1968 } 1969 1970 if (dst & SLJIT_MEM) 1971 return emit_op_mem(compiler, mem_type, dst_ar, dst, dstw); 1972 1973 if (sugg_dst_ar != dst_ar) 1974 return push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | DA(sugg_dst_ar), sugg_dst_ar); 1975 return SLJIT_SUCCESS; 1976 1977 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 1978 # undef mem_type 1979 #endif 1980 } 1981 1982 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value) 1983 { 1984 struct sljit_const *const_; 1985 sljit_s32 reg; 1986 1987 CHECK_ERROR_PTR(); 1988 CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value)); 1989 ADJUST_LOCAL_OFFSET(dst, dstw); 1990 1991 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const)); 1992 PTR_FAIL_IF(!const_); 1993 set_const(const_, compiler); 1994 1995 reg = SLOW_IS_REG(dst) ? dst : TMP_REG2; 1996 1997 PTR_FAIL_IF(emit_const(compiler, reg, init_value)); 1998 1999 if (dst & SLJIT_MEM) 2000 PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0)); 2001 return const_; 2002 } 2003
Indexes created Tue Sep 23 23:09:58 GMT 2025