1 /* 2 * Stack-less Just-In-Time compiler 3 * 4 * Copyright 2009-2012 Zoltan Herczeg (hzmester (at) freemail.hu). All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without modification, are 7 * permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, this list of 10 * conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 13 * of conditions and the following disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 SLJIT_API_FUNC_ATTRIBUTE const char* sljit_get_platform_name(void) 28 { 29 return "SPARC" SLJIT_CPUINFO; 30 } 31 32 /* Length of an instruction word 33 Both for sparc-32 and sparc-64 */ 34 typedef sljit_u32 sljit_ins; 35 36 #if (defined SLJIT_CACHE_FLUSH_OWN_IMPL && SLJIT_CACHE_FLUSH_OWN_IMPL) 37 38 static void sparc_cache_flush(sljit_ins *from, sljit_ins *to) 39 { 40 #if defined(__SUNPRO_C) && __SUNPRO_C < 0x590 41 __asm ( 42 /* if (from == to) return */ 43 "cmp %i0, %i1\n" 44 "be .leave\n" 45 "nop\n" 46 47 /* loop until from >= to */ 48 ".mainloop:\n" 49 "flush %i0\n" 50 "add %i0, 8, %i0\n" 51 "cmp %i0, %i1\n" 52 "bcs .mainloop\n" 53 "nop\n" 54 55 /* The comparison was done above. */ 56 "bne .leave\n" 57 /* nop is not necessary here, since the 58 sub operation has no side effect. */ 59 "sub %i0, 4, %i0\n" 60 "flush %i0\n" 61 ".leave:" 62 ); 63 #else 64 if (SLJIT_UNLIKELY(from == to)) 65 return; 66 67 do { 68 __asm__ volatile ( 69 "flush %0\n" 70 : : "r"(from) 71 ); 72 /* Operates at least on doubleword. */ 73 from += 2; 74 } while (from < to); 75 76 if (from == to) { 77 /* Flush the last word. */ 78 from --; 79 __asm__ volatile ( 80 "flush %0\n" 81 : : "r"(from) 82 ); 83 } 84 #endif 85 } 86 87 #endif /* (defined SLJIT_CACHE_FLUSH_OWN_IMPL && SLJIT_CACHE_FLUSH_OWN_IMPL) */ 88 89 /* TMP_REG2 is not used by getput_arg */ 90 #define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2) 91 #define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3) 92 #define TMP_REG3 (SLJIT_NUMBER_OF_REGISTERS + 4) 93 #define TMP_LINK (SLJIT_NUMBER_OF_REGISTERS + 5) 94 95 #define TMP_FREG1 (0) 96 #define TMP_FREG2 ((SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1) << 1) 97 98 static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 6] = { 99 0, 8, 9, 10, 13, 29, 28, 27, 23, 22, 21, 20, 19, 18, 17, 16, 26, 25, 24, 14, 1, 11, 12, 15 100 }; 101 102 /* --------------------------------------------------------------------- */ 103 /* Instrucion forms */ 104 /* --------------------------------------------------------------------- */ 105 106 #define D(d) (reg_map[d] << 25) 107 #define DA(d) ((d) << 25) 108 #define S1(s1) (reg_map[s1] << 14) 109 #define S2(s2) (reg_map[s2]) 110 #define S1A(s1) ((s1) << 14) 111 #define S2A(s2) (s2) 112 #define IMM_ARG 0x2000 113 #define DOP(op) ((op) << 5) 114 #define IMM(imm) (((imm) & 0x1fff) | IMM_ARG) 115 116 #define DR(dr) (reg_map[dr]) 117 #define OPC1(opcode) ((opcode) << 30) 118 #define OPC2(opcode) ((opcode) << 22) 119 #define OPC3(opcode) ((opcode) << 19) 120 #define SET_FLAGS OPC3(0x10) 121 122 #define ADD (OPC1(0x2) | OPC3(0x00)) 123 #define ADDC (OPC1(0x2) | OPC3(0x08)) 124 #define AND (OPC1(0x2) | OPC3(0x01)) 125 #define ANDN (OPC1(0x2) | OPC3(0x05)) 126 #define CALL (OPC1(0x1)) 127 #define FABSS (OPC1(0x2) | OPC3(0x34) | DOP(0x09)) 128 #define FADDD (OPC1(0x2) | OPC3(0x34) | DOP(0x42)) 129 #define FADDS (OPC1(0x2) | OPC3(0x34) | DOP(0x41)) 130 #define FCMPD (OPC1(0x2) | OPC3(0x35) | DOP(0x52)) 131 #define FCMPS (OPC1(0x2) | OPC3(0x35) | DOP(0x51)) 132 #define FDIVD (OPC1(0x2) | OPC3(0x34) | DOP(0x4e)) 133 #define FDIVS (OPC1(0x2) | OPC3(0x34) | DOP(0x4d)) 134 #define FDTOI (OPC1(0x2) | OPC3(0x34) | DOP(0xd2)) 135 #define FDTOS (OPC1(0x2) | OPC3(0x34) | DOP(0xc6)) 136 #define FITOD (OPC1(0x2) | OPC3(0x34) | DOP(0xc8)) 137 #define FITOS (OPC1(0x2) | OPC3(0x34) | DOP(0xc4)) 138 #define FMOVS (OPC1(0x2) | OPC3(0x34) | DOP(0x01)) 139 #define FMULD (OPC1(0x2) | OPC3(0x34) | DOP(0x4a)) 140 #define FMULS (OPC1(0x2) | OPC3(0x34) | DOP(0x49)) 141 #define FNEGS (OPC1(0x2) | OPC3(0x34) | DOP(0x05)) 142 #define FSTOD (OPC1(0x2) | OPC3(0x34) | DOP(0xc9)) 143 #define FSTOI (OPC1(0x2) | OPC3(0x34) | DOP(0xd1)) 144 #define FSUBD (OPC1(0x2) | OPC3(0x34) | DOP(0x46)) 145 #define FSUBS (OPC1(0x2) | OPC3(0x34) | DOP(0x45)) 146 #define JMPL (OPC1(0x2) | OPC3(0x38)) 147 #define NOP (OPC1(0x0) | OPC2(0x04)) 148 #define OR (OPC1(0x2) | OPC3(0x02)) 149 #define ORN (OPC1(0x2) | OPC3(0x06)) 150 #define RDY (OPC1(0x2) | OPC3(0x28) | S1A(0)) 151 #define RESTORE (OPC1(0x2) | OPC3(0x3d)) 152 #define SAVE (OPC1(0x2) | OPC3(0x3c)) 153 #define SETHI (OPC1(0x0) | OPC2(0x04)) 154 #define SLL (OPC1(0x2) | OPC3(0x25)) 155 #define SLLX (OPC1(0x2) | OPC3(0x25) | (1 << 12)) 156 #define SRA (OPC1(0x2) | OPC3(0x27)) 157 #define SRAX (OPC1(0x2) | OPC3(0x27) | (1 << 12)) 158 #define SRL (OPC1(0x2) | OPC3(0x26)) 159 #define SRLX (OPC1(0x2) | OPC3(0x26) | (1 << 12)) 160 #define SUB (OPC1(0x2) | OPC3(0x04)) 161 #define SUBC (OPC1(0x2) | OPC3(0x0c)) 162 #define TA (OPC1(0x2) | OPC3(0x3a) | (8 << 25)) 163 #define WRY (OPC1(0x2) | OPC3(0x30) | DA(0)) 164 #define XOR (OPC1(0x2) | OPC3(0x03)) 165 #define XNOR (OPC1(0x2) | OPC3(0x07)) 166 167 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 168 #define MAX_DISP (0x1fffff) 169 #define MIN_DISP (-0x200000) 170 #define DISP_MASK (0x3fffff) 171 172 #define BICC (OPC1(0x0) | OPC2(0x2)) 173 #define FBFCC (OPC1(0x0) | OPC2(0x6)) 174 #define SLL_W SLL 175 #define SDIV (OPC1(0x2) | OPC3(0x0f)) 176 #define SMUL (OPC1(0x2) | OPC3(0x0b)) 177 #define UDIV (OPC1(0x2) | OPC3(0x0e)) 178 #define UMUL (OPC1(0x2) | OPC3(0x0a)) 179 #else 180 #define SLL_W SLLX 181 #endif 182 183 #define SIMM_MAX (0x0fff) 184 #define SIMM_MIN (-0x1000) 185 186 /* dest_reg is the absolute name of the register 187 Useful for reordering instructions in the delay slot. */ 188 static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_s32 delay_slot) 189 { 190 sljit_ins *ptr; 191 SLJIT_ASSERT((delay_slot & DST_INS_MASK) == UNMOVABLE_INS 192 || (delay_slot & DST_INS_MASK) == MOVABLE_INS 193 || (delay_slot & DST_INS_MASK) == ((ins >> 25) & 0x1f)); 194 ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins)); 195 FAIL_IF(!ptr); 196 *ptr = ins; 197 compiler->size++; 198 compiler->delay_slot = delay_slot; 199 return SLJIT_SUCCESS; 200 } 201 202 static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code) 203 { 204 sljit_sw diff; 205 sljit_uw target_addr; 206 sljit_ins *inst; 207 sljit_ins saved_inst; 208 209 if (jump->flags & SLJIT_REWRITABLE_JUMP) 210 return code_ptr; 211 212 if (jump->flags & JUMP_ADDR) 213 target_addr = jump->u.target; 214 else { 215 SLJIT_ASSERT(jump->flags & JUMP_LABEL); 216 target_addr = (sljit_uw)(code + jump->u.label->size); 217 } 218 inst = (sljit_ins*)jump->addr; 219 220 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 221 if (jump->flags & IS_CALL) { 222 /* Call is always patchable on sparc 32. */ 223 jump->flags |= PATCH_CALL; 224 if (jump->flags & IS_MOVABLE) { 225 inst[0] = inst[-1]; 226 inst[-1] = CALL; 227 jump->addr -= sizeof(sljit_ins); 228 return inst; 229 } 230 inst[0] = CALL; 231 inst[1] = NOP; 232 return inst + 1; 233 } 234 #else 235 /* Both calls and BPr instructions shall not pass this point. */ 236 #error "Implementation required" 237 #endif 238 239 if (jump->flags & IS_COND) 240 inst--; 241 242 if (jump->flags & IS_MOVABLE) { 243 diff = ((sljit_sw)target_addr - (sljit_sw)(inst - 1)) >> 2; 244 if (diff <= MAX_DISP && diff >= MIN_DISP) { 245 jump->flags |= PATCH_B; 246 inst--; 247 if (jump->flags & IS_COND) { 248 saved_inst = inst[0]; 249 inst[0] = inst[1] ^ (1 << 28); 250 inst[1] = saved_inst; 251 } else { 252 inst[1] = inst[0]; 253 inst[0] = BICC | DA(0x8); 254 } 255 jump->addr = (sljit_uw)inst; 256 return inst + 1; 257 } 258 } 259 260 diff = ((sljit_sw)target_addr - (sljit_sw)(inst)) >> 2; 261 if (diff <= MAX_DISP && diff >= MIN_DISP) { 262 jump->flags |= PATCH_B; 263 if (jump->flags & IS_COND) 264 inst[0] ^= (1 << 28); 265 else 266 inst[0] = BICC | DA(0x8); 267 inst[1] = NOP; 268 jump->addr = (sljit_uw)inst; 269 return inst + 1; 270 } 271 272 return code_ptr; 273 } 274 275 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler) 276 { 277 struct sljit_memory_fragment *buf; 278 sljit_ins *code; 279 sljit_ins *code_ptr; 280 sljit_ins *buf_ptr; 281 sljit_ins *buf_end; 282 sljit_uw word_count; 283 sljit_uw addr; 284 285 struct sljit_label *label; 286 struct sljit_jump *jump; 287 struct sljit_const *const_; 288 289 CHECK_ERROR_PTR(); 290 CHECK_PTR(check_sljit_generate_code(compiler)); 291 reverse_buf(compiler); 292 293 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins)); 294 PTR_FAIL_WITH_EXEC_IF(code); 295 buf = compiler->buf; 296 297 code_ptr = code; 298 word_count = 0; 299 label = compiler->labels; 300 jump = compiler->jumps; 301 const_ = compiler->consts; 302 do { 303 buf_ptr = (sljit_ins*)buf->memory; 304 buf_end = buf_ptr + (buf->used_size >> 2); 305 do { 306 *code_ptr = *buf_ptr++; 307 SLJIT_ASSERT(!label || label->size >= word_count); 308 SLJIT_ASSERT(!jump || jump->addr >= word_count); 309 SLJIT_ASSERT(!const_ || const_->addr >= word_count); 310 /* These structures are ordered by their address. */ 311 if (label && label->size == word_count) { 312 /* Just recording the address. */ 313 label->addr = (sljit_uw)code_ptr; 314 label->size = code_ptr - code; 315 label = label->next; 316 } 317 if (jump && jump->addr == word_count) { 318 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 319 jump->addr = (sljit_uw)(code_ptr - 3); 320 #else 321 jump->addr = (sljit_uw)(code_ptr - 6); 322 #endif 323 code_ptr = detect_jump_type(jump, code_ptr, code); 324 jump = jump->next; 325 } 326 if (const_ && const_->addr == word_count) { 327 /* Just recording the address. */ 328 const_->addr = (sljit_uw)code_ptr; 329 const_ = const_->next; 330 } 331 code_ptr ++; 332 word_count ++; 333 } while (buf_ptr < buf_end); 334 335 buf = buf->next; 336 } while (buf); 337 338 if (label && label->size == word_count) { 339 label->addr = (sljit_uw)code_ptr; 340 label->size = code_ptr - code; 341 label = label->next; 342 } 343 344 SLJIT_ASSERT(!label); 345 SLJIT_ASSERT(!jump); 346 SLJIT_ASSERT(!const_); 347 SLJIT_ASSERT(code_ptr - code <= (sljit_s32)compiler->size); 348 349 jump = compiler->jumps; 350 while (jump) { 351 do { 352 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target; 353 buf_ptr = (sljit_ins*)jump->addr; 354 355 if (jump->flags & PATCH_CALL) { 356 addr = (sljit_sw)(addr - jump->addr) >> 2; 357 SLJIT_ASSERT((sljit_sw)addr <= 0x1fffffff && (sljit_sw)addr >= -0x20000000); 358 buf_ptr[0] = CALL | (addr & 0x3fffffff); 359 break; 360 } 361 if (jump->flags & PATCH_B) { 362 addr = (sljit_sw)(addr - jump->addr) >> 2; 363 SLJIT_ASSERT((sljit_sw)addr <= MAX_DISP && (sljit_sw)addr >= MIN_DISP); 364 buf_ptr[0] = (buf_ptr[0] & ~DISP_MASK) | (addr & DISP_MASK); 365 break; 366 } 367 368 /* Set the fields of immediate loads. */ 369 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 370 buf_ptr[0] = (buf_ptr[0] & 0xffc00000) | ((addr >> 10) & 0x3fffff); 371 buf_ptr[1] = (buf_ptr[1] & 0xfffffc00) | (addr & 0x3ff); 372 #else 373 #error "Implementation required" 374 #endif 375 } while (0); 376 jump = jump->next; 377 } 378 379 380 compiler->error = SLJIT_ERR_COMPILED; 381 compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins); 382 SLJIT_CACHE_FLUSH(code, code_ptr); 383 return code; 384 } 385 386 /* --------------------------------------------------------------------- */ 387 /* Entry, exit */ 388 /* --------------------------------------------------------------------- */ 389 390 /* Creates an index in data_transfer_insts array. */ 391 #define LOAD_DATA 0x01 392 #define WORD_DATA 0x00 393 #define BYTE_DATA 0x02 394 #define HALF_DATA 0x04 395 #define INT_DATA 0x06 396 #define SIGNED_DATA 0x08 397 /* Separates integer and floating point registers */ 398 #define GPR_REG 0x0f 399 #define DOUBLE_DATA 0x10 400 #define SINGLE_DATA 0x12 401 402 #define MEM_MASK 0x1f 403 404 #define WRITE_BACK 0x00020 405 #define ARG_TEST 0x00040 406 #define ALT_KEEP_CACHE 0x00080 407 #define CUMULATIVE_OP 0x00100 408 #define IMM_OP 0x00200 409 #define SRC2_IMM 0x00400 410 411 #define REG_DEST 0x00800 412 #define REG2_SOURCE 0x01000 413 #define SLOW_SRC1 0x02000 414 #define SLOW_SRC2 0x04000 415 #define SLOW_DEST 0x08000 416 417 /* SET_FLAGS (0x10 << 19) also belong here! */ 418 419 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 420 #include "sljitNativeSPARC_32.c" 421 #else 422 #include "sljitNativeSPARC_64.c" 423 #endif 424 425 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler, 426 sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds, 427 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size) 428 { 429 CHECK_ERROR(); 430 CHECK(check_sljit_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size)); 431 set_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size); 432 433 local_size = (local_size + SLJIT_LOCALS_OFFSET + 7) & ~0x7; 434 compiler->local_size = local_size; 435 436 if (local_size <= SIMM_MAX) { 437 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | IMM(-local_size), UNMOVABLE_INS)); 438 } 439 else { 440 FAIL_IF(load_immediate(compiler, TMP_REG1, -local_size)); 441 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | S2(TMP_REG1), UNMOVABLE_INS)); 442 } 443 444 /* Arguments are in their appropriate registers. */ 445 446 return SLJIT_SUCCESS; 447 } 448 449 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler, 450 sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds, 451 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size) 452 { 453 CHECK_ERROR(); 454 CHECK(check_sljit_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size)); 455 set_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size); 456 457 compiler->local_size = (local_size + SLJIT_LOCALS_OFFSET + 7) & ~0x7; 458 return SLJIT_SUCCESS; 459 } 460 461 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw) 462 { 463 CHECK_ERROR(); 464 CHECK(check_sljit_emit_return(compiler, op, src, srcw)); 465 466 if (op != SLJIT_MOV || !FAST_IS_REG(src)) { 467 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw)); 468 src = SLJIT_R0; 469 } 470 471 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1A(31) | IMM(8), UNMOVABLE_INS)); 472 return push_inst(compiler, RESTORE | D(SLJIT_R0) | S1(src) | S2(0), UNMOVABLE_INS); 473 } 474 475 /* --------------------------------------------------------------------- */ 476 /* Operators */ 477 /* --------------------------------------------------------------------- */ 478 479 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 480 #define ARCH_32_64(a, b) a 481 #else 482 #define ARCH_32_64(a, b) b 483 #endif 484 485 static const sljit_ins data_transfer_insts[16 + 4] = { 486 /* u w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */), 487 /* u w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */), 488 /* u b s */ OPC1(3) | OPC3(0x05) /* stb */, 489 /* u b l */ OPC1(3) | OPC3(0x01) /* ldub */, 490 /* u h s */ OPC1(3) | OPC3(0x06) /* sth */, 491 /* u h l */ OPC1(3) | OPC3(0x02) /* lduh */, 492 /* u i s */ OPC1(3) | OPC3(0x04) /* stw */, 493 /* u i l */ OPC1(3) | OPC3(0x00) /* lduw */, 494 495 /* s w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */), 496 /* s w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */), 497 /* s b s */ OPC1(3) | OPC3(0x05) /* stb */, 498 /* s b l */ OPC1(3) | OPC3(0x09) /* ldsb */, 499 /* s h s */ OPC1(3) | OPC3(0x06) /* sth */, 500 /* s h l */ OPC1(3) | OPC3(0x0a) /* ldsh */, 501 /* s i s */ OPC1(3) | OPC3(0x04) /* stw */, 502 /* s i l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x08) /* ldsw */), 503 504 /* d s */ OPC1(3) | OPC3(0x27), 505 /* d l */ OPC1(3) | OPC3(0x23), 506 /* s s */ OPC1(3) | OPC3(0x24), 507 /* s l */ OPC1(3) | OPC3(0x20), 508 }; 509 510 #undef ARCH_32_64 511 512 /* Can perform an operation using at most 1 instruction. */ 513 static sljit_s32 getput_arg_fast(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw) 514 { 515 SLJIT_ASSERT(arg & SLJIT_MEM); 516 517 if (!(flags & WRITE_BACK) || !(arg & REG_MASK)) { 518 if ((!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN) 519 || ((arg & OFFS_REG_MASK) && (argw & 0x3) == 0)) { 520 /* Works for both absoulte and relative addresses (immediate case). */ 521 if (SLJIT_UNLIKELY(flags & ARG_TEST)) 522 return 1; 523 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] 524 | ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg)) 525 | S1(arg & REG_MASK) | ((arg & OFFS_REG_MASK) ? S2(OFFS_REG(arg)) : IMM(argw)), 526 ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS)); 527 return -1; 528 } 529 } 530 return 0; 531 } 532 533 /* See getput_arg below. 534 Note: can_cache is called only for binary operators. Those 535 operators always uses word arguments without write back. */ 536 static sljit_s32 can_cache(sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw) 537 { 538 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM)); 539 540 /* Simple operation except for updates. */ 541 if (arg & OFFS_REG_MASK) { 542 argw &= 0x3; 543 SLJIT_ASSERT(argw); 544 next_argw &= 0x3; 545 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == next_argw) 546 return 1; 547 return 0; 548 } 549 550 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN)) 551 return 1; 552 return 0; 553 } 554 555 /* Emit the necessary instructions. See can_cache above. */ 556 static sljit_s32 getput_arg(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw) 557 { 558 sljit_s32 base, arg2, delay_slot; 559 sljit_ins dest; 560 561 SLJIT_ASSERT(arg & SLJIT_MEM); 562 if (!(next_arg & SLJIT_MEM)) { 563 next_arg = 0; 564 next_argw = 0; 565 } 566 567 base = arg & REG_MASK; 568 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) { 569 argw &= 0x3; 570 SLJIT_ASSERT(argw != 0); 571 572 /* Using the cache. */ 573 if (((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) && (argw == compiler->cache_argw)) 574 arg2 = TMP_REG3; 575 else { 576 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == (next_argw & 0x3)) { 577 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK); 578 compiler->cache_argw = argw; 579 arg2 = TMP_REG3; 580 } 581 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base && reg != OFFS_REG(arg)) 582 arg2 = reg; 583 else /* It must be a mov operation, so tmp1 must be free to use. */ 584 arg2 = TMP_REG1; 585 FAIL_IF(push_inst(compiler, SLL_W | D(arg2) | S1(OFFS_REG(arg)) | IMM_ARG | argw, DR(arg2))); 586 } 587 } 588 else { 589 /* Using the cache. */ 590 if ((compiler->cache_arg == SLJIT_MEM) && (argw - compiler->cache_argw) <= SIMM_MAX && (argw - compiler->cache_argw) >= SIMM_MIN) { 591 if (argw != compiler->cache_argw) { 592 FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | S1(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 593 compiler->cache_argw = argw; 594 } 595 arg2 = TMP_REG3; 596 } else { 597 if ((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN) { 598 compiler->cache_arg = SLJIT_MEM; 599 compiler->cache_argw = argw; 600 arg2 = TMP_REG3; 601 } 602 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base) 603 arg2 = reg; 604 else /* It must be a mov operation, so tmp1 must be free to use. */ 605 arg2 = TMP_REG1; 606 FAIL_IF(load_immediate(compiler, arg2, argw)); 607 } 608 } 609 610 dest = ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg)); 611 delay_slot = ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS; 612 if (!base) 613 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(arg2) | IMM(0), delay_slot); 614 if (!(flags & WRITE_BACK)) 615 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot); 616 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot)); 617 return push_inst(compiler, ADD | D(base) | S1(base) | S2(arg2), DR(base)); 618 } 619 620 static SLJIT_INLINE sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw) 621 { 622 if (getput_arg_fast(compiler, flags, reg, arg, argw)) 623 return compiler->error; 624 compiler->cache_arg = 0; 625 compiler->cache_argw = 0; 626 return getput_arg(compiler, flags, reg, arg, argw, 0, 0); 627 } 628 629 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) 630 { 631 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w)) 632 return compiler->error; 633 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w); 634 } 635 636 static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags, 637 sljit_s32 dst, sljit_sw dstw, 638 sljit_s32 src1, sljit_sw src1w, 639 sljit_s32 src2, sljit_sw src2w) 640 { 641 /* arg1 goes to TMP_REG1 or src reg 642 arg2 goes to TMP_REG2, imm or src reg 643 TMP_REG3 can be used for caching 644 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */ 645 sljit_s32 dst_r = TMP_REG2; 646 sljit_s32 src1_r; 647 sljit_sw src2_r = 0; 648 sljit_s32 sugg_src2_r = TMP_REG2; 649 650 if (!(flags & ALT_KEEP_CACHE)) { 651 compiler->cache_arg = 0; 652 compiler->cache_argw = 0; 653 } 654 655 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) { 656 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_S32 && !(src2 & SLJIT_MEM)) 657 return SLJIT_SUCCESS; 658 } 659 else if (FAST_IS_REG(dst)) { 660 dst_r = dst; 661 flags |= REG_DEST; 662 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_S32) 663 sugg_src2_r = dst_r; 664 } 665 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, TMP_REG1, dst, dstw)) 666 flags |= SLOW_DEST; 667 668 if (flags & IMM_OP) { 669 if ((src2 & SLJIT_IMM) && src2w) { 670 if (src2w <= SIMM_MAX && src2w >= SIMM_MIN) { 671 flags |= SRC2_IMM; 672 src2_r = src2w; 673 } 674 } 675 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) { 676 if (src1w <= SIMM_MAX && src1w >= SIMM_MIN) { 677 flags |= SRC2_IMM; 678 src2_r = src1w; 679 680 /* And swap arguments. */ 681 src1 = src2; 682 src1w = src2w; 683 src2 = SLJIT_IMM; 684 /* src2w = src2_r unneeded. */ 685 } 686 } 687 } 688 689 /* Source 1. */ 690 if (FAST_IS_REG(src1)) 691 src1_r = src1; 692 else if (src1 & SLJIT_IMM) { 693 if (src1w) { 694 FAIL_IF(load_immediate(compiler, TMP_REG1, src1w)); 695 src1_r = TMP_REG1; 696 } 697 else 698 src1_r = 0; 699 } 700 else { 701 if (getput_arg_fast(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w)) 702 FAIL_IF(compiler->error); 703 else 704 flags |= SLOW_SRC1; 705 src1_r = TMP_REG1; 706 } 707 708 /* Source 2. */ 709 if (FAST_IS_REG(src2)) { 710 src2_r = src2; 711 flags |= REG2_SOURCE; 712 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_S32) 713 dst_r = src2_r; 714 } 715 else if (src2 & SLJIT_IMM) { 716 if (!(flags & SRC2_IMM)) { 717 if (src2w) { 718 FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w)); 719 src2_r = sugg_src2_r; 720 } 721 else { 722 src2_r = 0; 723 if ((op >= SLJIT_MOV && op <= SLJIT_MOVU_S32) && (dst & SLJIT_MEM)) 724 dst_r = 0; 725 } 726 } 727 } 728 else { 729 if (getput_arg_fast(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w)) 730 FAIL_IF(compiler->error); 731 else 732 flags |= SLOW_SRC2; 733 src2_r = sugg_src2_r; 734 } 735 736 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 737 SLJIT_ASSERT(src2_r == TMP_REG2); 738 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 739 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w)); 740 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw)); 741 } 742 else { 743 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w)); 744 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw)); 745 } 746 } 747 else if (flags & SLOW_SRC1) 748 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw)); 749 else if (flags & SLOW_SRC2) 750 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw)); 751 752 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r)); 753 754 if (dst & SLJIT_MEM) { 755 if (!(flags & SLOW_DEST)) { 756 getput_arg_fast(compiler, flags, dst_r, dst, dstw); 757 return compiler->error; 758 } 759 return getput_arg(compiler, flags, dst_r, dst, dstw, 0, 0); 760 } 761 762 return SLJIT_SUCCESS; 763 } 764 765 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op) 766 { 767 CHECK_ERROR(); 768 CHECK(check_sljit_emit_op0(compiler, op)); 769 770 op = GET_OPCODE(op); 771 switch (op) { 772 case SLJIT_BREAKPOINT: 773 return push_inst(compiler, TA, UNMOVABLE_INS); 774 case SLJIT_NOP: 775 return push_inst(compiler, NOP, UNMOVABLE_INS); 776 case SLJIT_LMUL_UW: 777 case SLJIT_LMUL_SW: 778 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 779 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? UMUL : SMUL) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0))); 780 return push_inst(compiler, RDY | D(SLJIT_R1), DR(SLJIT_R1)); 781 #else 782 #error "Implementation required" 783 #endif 784 case SLJIT_DIVMOD_UW: 785 case SLJIT_DIVMOD_SW: 786 case SLJIT_DIV_UW: 787 case SLJIT_DIV_SW: 788 SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments); 789 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 790 if ((op | 0x2) == SLJIT_DIV_UW) 791 FAIL_IF(push_inst(compiler, WRY | S1(0), MOVABLE_INS)); 792 else { 793 FAIL_IF(push_inst(compiler, SRA | D(TMP_REG1) | S1(SLJIT_R0) | IMM(31), DR(TMP_REG1))); 794 FAIL_IF(push_inst(compiler, WRY | S1(TMP_REG1), MOVABLE_INS)); 795 } 796 if (op <= SLJIT_DIVMOD_SW) 797 FAIL_IF(push_inst(compiler, OR | D(TMP_REG2) | S1(0) | S2(SLJIT_R0), DR(TMP_REG2))); 798 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? UDIV : SDIV) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0))); 799 if (op >= SLJIT_DIV_UW) 800 return SLJIT_SUCCESS; 801 FAIL_IF(push_inst(compiler, SMUL | D(SLJIT_R1) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R1))); 802 return push_inst(compiler, SUB | D(SLJIT_R1) | S1(TMP_REG2) | S2(SLJIT_R1), DR(SLJIT_R1)); 803 #else 804 #error "Implementation required" 805 #endif 806 } 807 808 return SLJIT_SUCCESS; 809 } 810 811 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op, 812 sljit_s32 dst, sljit_sw dstw, 813 sljit_s32 src, sljit_sw srcw) 814 { 815 sljit_s32 flags = GET_FLAGS(op) ? SET_FLAGS : 0; 816 817 CHECK_ERROR(); 818 CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw)); 819 ADJUST_LOCAL_OFFSET(dst, dstw); 820 ADJUST_LOCAL_OFFSET(src, srcw); 821 822 op = GET_OPCODE(op); 823 switch (op) { 824 case SLJIT_MOV: 825 case SLJIT_MOV_P: 826 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 827 828 case SLJIT_MOV_U32: 829 return emit_op(compiler, SLJIT_MOV_U32, flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 830 831 case SLJIT_MOV_S32: 832 return emit_op(compiler, SLJIT_MOV_S32, flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 833 834 case SLJIT_MOV_U8: 835 return emit_op(compiler, SLJIT_MOV_U8, flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw); 836 837 case SLJIT_MOV_S8: 838 return emit_op(compiler, SLJIT_MOV_S8, flags | BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw); 839 840 case SLJIT_MOV_U16: 841 return emit_op(compiler, SLJIT_MOV_U16, flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw); 842 843 case SLJIT_MOV_S16: 844 return emit_op(compiler, SLJIT_MOV_S16, flags | HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw); 845 846 case SLJIT_MOVU: 847 case SLJIT_MOVU_P: 848 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 849 850 case SLJIT_MOVU_U32: 851 return emit_op(compiler, SLJIT_MOV_U32, flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 852 853 case SLJIT_MOVU_S32: 854 return emit_op(compiler, SLJIT_MOV_S32, flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 855 856 case SLJIT_MOVU_U8: 857 return emit_op(compiler, SLJIT_MOV_U8, flags | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw); 858 859 case SLJIT_MOVU_S8: 860 return emit_op(compiler, SLJIT_MOV_S8, flags | BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw); 861 862 case SLJIT_MOVU_U16: 863 return emit_op(compiler, SLJIT_MOV_U16, flags | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw); 864 865 case SLJIT_MOVU_S16: 866 return emit_op(compiler, SLJIT_MOV_S16, flags | HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw); 867 868 case SLJIT_NOT: 869 case SLJIT_CLZ: 870 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw); 871 872 case SLJIT_NEG: 873 return emit_op(compiler, SLJIT_SUB, flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw); 874 } 875 876 return SLJIT_SUCCESS; 877 } 878 879 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op, 880 sljit_s32 dst, sljit_sw dstw, 881 sljit_s32 src1, sljit_sw src1w, 882 sljit_s32 src2, sljit_sw src2w) 883 { 884 sljit_s32 flags = GET_FLAGS(op) ? SET_FLAGS : 0; 885 886 CHECK_ERROR(); 887 CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w)); 888 ADJUST_LOCAL_OFFSET(dst, dstw); 889 ADJUST_LOCAL_OFFSET(src1, src1w); 890 ADJUST_LOCAL_OFFSET(src2, src2w); 891 892 op = GET_OPCODE(op); 893 switch (op) { 894 case SLJIT_ADD: 895 case SLJIT_ADDC: 896 case SLJIT_MUL: 897 case SLJIT_AND: 898 case SLJIT_OR: 899 case SLJIT_XOR: 900 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 901 902 case SLJIT_SUB: 903 case SLJIT_SUBC: 904 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 905 906 case SLJIT_SHL: 907 case SLJIT_LSHR: 908 case SLJIT_ASHR: 909 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 910 if (src2 & SLJIT_IMM) 911 src2w &= 0x1f; 912 #else 913 SLJIT_ASSERT_STOP(); 914 #endif 915 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 916 } 917 918 return SLJIT_SUCCESS; 919 } 920 921 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg) 922 { 923 CHECK_REG_INDEX(check_sljit_get_register_index(reg)); 924 return reg_map[reg]; 925 } 926 927 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg) 928 { 929 CHECK_REG_INDEX(check_sljit_get_float_register_index(reg)); 930 return reg << 1; 931 } 932 933 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler, 934 void *instruction, sljit_s32 size) 935 { 936 CHECK_ERROR(); 937 CHECK(check_sljit_emit_op_custom(compiler, instruction, size)); 938 939 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS); 940 } 941 942 /* --------------------------------------------------------------------- */ 943 /* Floating point operators */ 944 /* --------------------------------------------------------------------- */ 945 946 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_is_fpu_available(void) 947 { 948 #ifdef SLJIT_IS_FPU_AVAILABLE 949 return SLJIT_IS_FPU_AVAILABLE; 950 #else 951 /* Available by default. */ 952 return 1; 953 #endif 954 } 955 956 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_F32_OP) >> 7)) 957 #define SELECT_FOP(op, single, double) ((op & SLJIT_F32_OP) ? single : double) 958 #define FLOAT_TMP_MEM_OFFSET (22 * sizeof(sljit_sw)) 959 960 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op, 961 sljit_s32 dst, sljit_sw dstw, 962 sljit_s32 src, sljit_sw srcw) 963 { 964 if (src & SLJIT_MEM) { 965 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw)); 966 src = TMP_FREG1; 967 } 968 else 969 src <<= 1; 970 971 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOI, FDTOI) | DA(TMP_FREG1) | S2A(src), MOVABLE_INS)); 972 973 if (dst == SLJIT_UNUSED) 974 return SLJIT_SUCCESS; 975 976 if (FAST_IS_REG(dst)) { 977 FAIL_IF(emit_op_mem2(compiler, SINGLE_DATA, TMP_FREG1, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET)); 978 return emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, dst, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET); 979 } 980 981 /* Store the integer value from a VFP register. */ 982 return emit_op_mem2(compiler, SINGLE_DATA, TMP_FREG1, dst, dstw, 0, 0); 983 } 984 985 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op, 986 sljit_s32 dst, sljit_sw dstw, 987 sljit_s32 src, sljit_sw srcw) 988 { 989 sljit_s32 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1; 990 991 if (src & SLJIT_IMM) { 992 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) 993 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32) 994 srcw = (sljit_s32)srcw; 995 #endif 996 FAIL_IF(load_immediate(compiler, TMP_REG1, srcw)); 997 src = TMP_REG1; 998 srcw = 0; 999 } 1000 1001 if (FAST_IS_REG(src)) { 1002 FAIL_IF(emit_op_mem2(compiler, WORD_DATA, src, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET)); 1003 src = SLJIT_MEM1(SLJIT_SP); 1004 srcw = FLOAT_TMP_MEM_OFFSET; 1005 } 1006 1007 FAIL_IF(emit_op_mem2(compiler, SINGLE_DATA | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw)); 1008 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FITOS, FITOD) | DA(dst_r) | S2A(TMP_FREG1), MOVABLE_INS)); 1009 1010 if (dst & SLJIT_MEM) 1011 return emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, 0, 0); 1012 return SLJIT_SUCCESS; 1013 } 1014 1015 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op, 1016 sljit_s32 src1, sljit_sw src1w, 1017 sljit_s32 src2, sljit_sw src2w) 1018 { 1019 if (src1 & SLJIT_MEM) { 1020 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w)); 1021 src1 = TMP_FREG1; 1022 } 1023 else 1024 src1 <<= 1; 1025 1026 if (src2 & SLJIT_MEM) { 1027 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0)); 1028 src2 = TMP_FREG2; 1029 } 1030 else 1031 src2 <<= 1; 1032 1033 return push_inst(compiler, SELECT_FOP(op, FCMPS, FCMPD) | S1A(src1) | S2A(src2), FCC_IS_SET | MOVABLE_INS); 1034 } 1035 1036 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op, 1037 sljit_s32 dst, sljit_sw dstw, 1038 sljit_s32 src, sljit_sw srcw) 1039 { 1040 sljit_s32 dst_r; 1041 1042 CHECK_ERROR(); 1043 compiler->cache_arg = 0; 1044 compiler->cache_argw = 0; 1045 1046 SLJIT_COMPILE_ASSERT((SLJIT_F32_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error); 1047 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw); 1048 1049 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32) 1050 op ^= SLJIT_F32_OP; 1051 1052 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1; 1053 1054 if (src & SLJIT_MEM) { 1055 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, dst, dstw)); 1056 src = dst_r; 1057 } 1058 else 1059 src <<= 1; 1060 1061 switch (GET_OPCODE(op)) { 1062 case SLJIT_MOV_F64: 1063 if (src != dst_r) { 1064 if (dst_r != TMP_FREG1) { 1065 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r) | S2A(src), MOVABLE_INS)); 1066 if (!(op & SLJIT_F32_OP)) 1067 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS)); 1068 } 1069 else 1070 dst_r = src; 1071 } 1072 break; 1073 case SLJIT_NEG_F64: 1074 FAIL_IF(push_inst(compiler, FNEGS | DA(dst_r) | S2A(src), MOVABLE_INS)); 1075 if (dst_r != src && !(op & SLJIT_F32_OP)) 1076 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS)); 1077 break; 1078 case SLJIT_ABS_F64: 1079 FAIL_IF(push_inst(compiler, FABSS | DA(dst_r) | S2A(src), MOVABLE_INS)); 1080 if (dst_r != src && !(op & SLJIT_F32_OP)) 1081 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS)); 1082 break; 1083 case SLJIT_CONV_F64_FROM_F32: 1084 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOD, FDTOS) | DA(dst_r) | S2A(src), MOVABLE_INS)); 1085 op ^= SLJIT_F32_OP; 1086 break; 1087 } 1088 1089 if (dst & SLJIT_MEM) 1090 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), dst_r, dst, dstw, 0, 0)); 1091 return SLJIT_SUCCESS; 1092 } 1093 1094 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op, 1095 sljit_s32 dst, sljit_sw dstw, 1096 sljit_s32 src1, sljit_sw src1w, 1097 sljit_s32 src2, sljit_sw src2w) 1098 { 1099 sljit_s32 dst_r, flags = 0; 1100 1101 CHECK_ERROR(); 1102 CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w)); 1103 ADJUST_LOCAL_OFFSET(dst, dstw); 1104 ADJUST_LOCAL_OFFSET(src1, src1w); 1105 ADJUST_LOCAL_OFFSET(src2, src2w); 1106 1107 compiler->cache_arg = 0; 1108 compiler->cache_argw = 0; 1109 1110 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG2; 1111 1112 if (src1 & SLJIT_MEM) { 1113 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) { 1114 FAIL_IF(compiler->error); 1115 src1 = TMP_FREG1; 1116 } else 1117 flags |= SLOW_SRC1; 1118 } 1119 else 1120 src1 <<= 1; 1121 1122 if (src2 & SLJIT_MEM) { 1123 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) { 1124 FAIL_IF(compiler->error); 1125 src2 = TMP_FREG2; 1126 } else 1127 flags |= SLOW_SRC2; 1128 } 1129 else 1130 src2 <<= 1; 1131 1132 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 1133 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 1134 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w)); 1135 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw)); 1136 } 1137 else { 1138 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w)); 1139 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw)); 1140 } 1141 } 1142 else if (flags & SLOW_SRC1) 1143 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw)); 1144 else if (flags & SLOW_SRC2) 1145 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw)); 1146 1147 if (flags & SLOW_SRC1) 1148 src1 = TMP_FREG1; 1149 if (flags & SLOW_SRC2) 1150 src2 = TMP_FREG2; 1151 1152 switch (GET_OPCODE(op)) { 1153 case SLJIT_ADD_F64: 1154 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FADDS, FADDD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS)); 1155 break; 1156 1157 case SLJIT_SUB_F64: 1158 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSUBS, FSUBD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS)); 1159 break; 1160 1161 case SLJIT_MUL_F64: 1162 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FMULS, FMULD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS)); 1163 break; 1164 1165 case SLJIT_DIV_F64: 1166 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FDIVS, FDIVD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS)); 1167 break; 1168 } 1169 1170 if (dst_r == TMP_FREG2) 1171 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0)); 1172 1173 return SLJIT_SUCCESS; 1174 } 1175 1176 #undef FLOAT_DATA 1177 #undef SELECT_FOP 1178 1179 /* --------------------------------------------------------------------- */ 1180 /* Other instructions */ 1181 /* --------------------------------------------------------------------- */ 1182 1183 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw) 1184 { 1185 CHECK_ERROR(); 1186 CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw)); 1187 ADJUST_LOCAL_OFFSET(dst, dstw); 1188 1189 /* For UNUSED dst. Uncommon, but possible. */ 1190 if (dst == SLJIT_UNUSED) 1191 return SLJIT_SUCCESS; 1192 1193 if (FAST_IS_REG(dst)) 1194 return push_inst(compiler, OR | D(dst) | S1(0) | S2(TMP_LINK), DR(dst)); 1195 1196 /* Memory. */ 1197 return emit_op_mem(compiler, WORD_DATA, TMP_LINK, dst, dstw); 1198 } 1199 1200 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src, sljit_sw srcw) 1201 { 1202 CHECK_ERROR(); 1203 CHECK(check_sljit_emit_fast_return(compiler, src, srcw)); 1204 ADJUST_LOCAL_OFFSET(src, srcw); 1205 1206 if (FAST_IS_REG(src)) 1207 FAIL_IF(push_inst(compiler, OR | D(TMP_LINK) | S1(0) | S2(src), DR(TMP_LINK))); 1208 else if (src & SLJIT_MEM) 1209 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_LINK, src, srcw)); 1210 else if (src & SLJIT_IMM) 1211 FAIL_IF(load_immediate(compiler, TMP_LINK, srcw)); 1212 1213 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1(TMP_LINK) | IMM(8), UNMOVABLE_INS)); 1214 return push_inst(compiler, NOP, UNMOVABLE_INS); 1215 } 1216 1217 /* --------------------------------------------------------------------- */ 1218 /* Conditional instructions */ 1219 /* --------------------------------------------------------------------- */ 1220 1221 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler) 1222 { 1223 struct sljit_label *label; 1224 1225 CHECK_ERROR_PTR(); 1226 CHECK_PTR(check_sljit_emit_label(compiler)); 1227 1228 if (compiler->last_label && compiler->last_label->size == compiler->size) 1229 return compiler->last_label; 1230 1231 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label)); 1232 PTR_FAIL_IF(!label); 1233 set_label(label, compiler); 1234 compiler->delay_slot = UNMOVABLE_INS; 1235 return label; 1236 } 1237 1238 static sljit_ins get_cc(sljit_s32 type) 1239 { 1240 switch (type) { 1241 case SLJIT_EQUAL: 1242 case SLJIT_MUL_NOT_OVERFLOW: 1243 case SLJIT_NOT_EQUAL_F64: /* Unordered. */ 1244 return DA(0x1); 1245 1246 case SLJIT_NOT_EQUAL: 1247 case SLJIT_MUL_OVERFLOW: 1248 case SLJIT_EQUAL_F64: 1249 return DA(0x9); 1250 1251 case SLJIT_LESS: 1252 case SLJIT_GREATER_F64: /* Unordered. */ 1253 return DA(0x5); 1254 1255 case SLJIT_GREATER_EQUAL: 1256 case SLJIT_LESS_EQUAL_F64: 1257 return DA(0xd); 1258 1259 case SLJIT_GREATER: 1260 case SLJIT_GREATER_EQUAL_F64: /* Unordered. */ 1261 return DA(0xc); 1262 1263 case SLJIT_LESS_EQUAL: 1264 case SLJIT_LESS_F64: 1265 return DA(0x4); 1266 1267 case SLJIT_SIG_LESS: 1268 return DA(0x3); 1269 1270 case SLJIT_SIG_GREATER_EQUAL: 1271 return DA(0xb); 1272 1273 case SLJIT_SIG_GREATER: 1274 return DA(0xa); 1275 1276 case SLJIT_SIG_LESS_EQUAL: 1277 return DA(0x2); 1278 1279 case SLJIT_OVERFLOW: 1280 case SLJIT_UNORDERED_F64: 1281 return DA(0x7); 1282 1283 case SLJIT_NOT_OVERFLOW: 1284 case SLJIT_ORDERED_F64: 1285 return DA(0xf); 1286 1287 default: 1288 SLJIT_ASSERT_STOP(); 1289 return DA(0x8); 1290 } 1291 } 1292 1293 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type) 1294 { 1295 struct sljit_jump *jump; 1296 1297 CHECK_ERROR_PTR(); 1298 CHECK_PTR(check_sljit_emit_jump(compiler, type)); 1299 1300 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1301 PTR_FAIL_IF(!jump); 1302 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1303 type &= 0xff; 1304 1305 if (type < SLJIT_EQUAL_F64) { 1306 jump->flags |= IS_COND; 1307 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & ICC_IS_SET)) 1308 jump->flags |= IS_MOVABLE; 1309 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 1310 PTR_FAIL_IF(push_inst(compiler, BICC | get_cc(type ^ 1) | 5, UNMOVABLE_INS)); 1311 #else 1312 #error "Implementation required" 1313 #endif 1314 } 1315 else if (type < SLJIT_JUMP) { 1316 jump->flags |= IS_COND; 1317 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & FCC_IS_SET)) 1318 jump->flags |= IS_MOVABLE; 1319 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 1320 PTR_FAIL_IF(push_inst(compiler, FBFCC | get_cc(type ^ 1) | 5, UNMOVABLE_INS)); 1321 #else 1322 #error "Implementation required" 1323 #endif 1324 } else { 1325 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) 1326 jump->flags |= IS_MOVABLE; 1327 if (type >= SLJIT_FAST_CALL) 1328 jump->flags |= IS_CALL; 1329 } 1330 1331 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1332 PTR_FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(TMP_REG2) | IMM(0), UNMOVABLE_INS)); 1333 jump->addr = compiler->size; 1334 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1335 1336 return jump; 1337 } 1338 1339 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw) 1340 { 1341 struct sljit_jump *jump = NULL; 1342 sljit_s32 src_r; 1343 1344 CHECK_ERROR(); 1345 CHECK(check_sljit_emit_ijump(compiler, type, src, srcw)); 1346 ADJUST_LOCAL_OFFSET(src, srcw); 1347 1348 if (FAST_IS_REG(src)) 1349 src_r = src; 1350 else if (src & SLJIT_IMM) { 1351 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1352 FAIL_IF(!jump); 1353 set_jump(jump, compiler, JUMP_ADDR); 1354 jump->u.target = srcw; 1355 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) 1356 jump->flags |= IS_MOVABLE; 1357 if (type >= SLJIT_FAST_CALL) 1358 jump->flags |= IS_CALL; 1359 1360 FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1361 src_r = TMP_REG2; 1362 } 1363 else { 1364 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw)); 1365 src_r = TMP_REG2; 1366 } 1367 1368 FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(src_r) | IMM(0), UNMOVABLE_INS)); 1369 if (jump) 1370 jump->addr = compiler->size; 1371 return push_inst(compiler, NOP, UNMOVABLE_INS); 1372 } 1373 1374 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op, 1375 sljit_s32 dst, sljit_sw dstw, 1376 sljit_s32 src, sljit_sw srcw, 1377 sljit_s32 type) 1378 { 1379 sljit_s32 reg, flags = (GET_FLAGS(op) ? SET_FLAGS : 0); 1380 1381 CHECK_ERROR(); 1382 CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type)); 1383 ADJUST_LOCAL_OFFSET(dst, dstw); 1384 1385 if (dst == SLJIT_UNUSED) 1386 return SLJIT_SUCCESS; 1387 1388 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 1389 op = GET_OPCODE(op); 1390 reg = (op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2; 1391 1392 compiler->cache_arg = 0; 1393 compiler->cache_argw = 0; 1394 if (op >= SLJIT_ADD && (src & SLJIT_MEM)) { 1395 ADJUST_LOCAL_OFFSET(src, srcw); 1396 FAIL_IF(emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw, dst, dstw)); 1397 src = TMP_REG1; 1398 srcw = 0; 1399 } 1400 1401 type &= 0xff; 1402 if (type < SLJIT_EQUAL_F64) 1403 FAIL_IF(push_inst(compiler, BICC | get_cc(type) | 3, UNMOVABLE_INS)); 1404 else 1405 FAIL_IF(push_inst(compiler, FBFCC | get_cc(type) | 3, UNMOVABLE_INS)); 1406 1407 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(1), UNMOVABLE_INS)); 1408 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(0), UNMOVABLE_INS)); 1409 1410 if (op >= SLJIT_ADD) 1411 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP | ALT_KEEP_CACHE, dst, dstw, src, srcw, TMP_REG2, 0); 1412 1413 return (reg == TMP_REG2) ? emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw) : SLJIT_SUCCESS; 1414 #else 1415 #error "Implementation required" 1416 #endif 1417 } 1418 1419 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value) 1420 { 1421 sljit_s32 reg; 1422 struct sljit_const *const_; 1423 1424 CHECK_ERROR_PTR(); 1425 CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value)); 1426 ADJUST_LOCAL_OFFSET(dst, dstw); 1427 1428 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const)); 1429 PTR_FAIL_IF(!const_); 1430 set_const(const_, compiler); 1431 1432 reg = SLOW_IS_REG(dst) ? dst : TMP_REG2; 1433 1434 PTR_FAIL_IF(emit_const(compiler, reg, init_value)); 1435 1436 if (dst & SLJIT_MEM) 1437 PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw)); 1438 return const_; 1439 } 1440
