1/* 2 * Stack-less Just-In-Time compiler 3 * 4 * Copyright 2009-2012 Zoltan Herczeg (hzmester@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 27SLJIT_API_FUNC_ATTRIBUTE SLJIT_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 */ 34typedef sljit_ui sljit_ins; 35 36static void sparc_cache_flush(sljit_ins *from, sljit_ins *to) 37{ 38#if defined(__SUNPRO_C) && __SUNPRO_C < 0x590 39 __asm ( 40 /* if (from == to) return */ 41 "cmp %i0, %i1\n" 42 "be .leave\n" 43 "nop\n" 44 45 /* loop until from >= to */ 46 ".mainloop:\n" 47 "flush %i0\n" 48 "add %i0, 8, %i0\n" 49 "cmp %i0, %i1\n" 50 "bcs .mainloop\n" 51 "nop\n" 52 53 /* The comparison was done above. */ 54 "bne .leave\n" 55 /* nop is not necessary here, since the 56 sub operation has no side effect. */ 57 "sub %i0, 4, %i0\n" 58 "flush %i0\n" 59 ".leave:" 60 ); 61#else 62 if (SLJIT_UNLIKELY(from == to)) 63 return; 64 65 do { 66 __asm__ volatile ( 67 "flush %0\n" 68 : : "r"(from) 69 ); 70 /* Operates at least on doubleword. */ 71 from += 2; 72 } while (from < to); 73 74 if (from == to) { 75 /* Flush the last word. */ 76 from --; 77 __asm__ volatile ( 78 "flush %0\n" 79 : : "r"(from) 80 ); 81 } 82#endif 83} 84 85/* TMP_REG2 is not used by getput_arg */ 86#define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2) 87#define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3) 88#define TMP_REG3 (SLJIT_NUMBER_OF_REGISTERS + 4) 89#define TMP_LINK (SLJIT_NUMBER_OF_REGISTERS + 5) 90 91#define TMP_FREG1 (0) 92#define TMP_FREG2 ((SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1) << 1) 93 94static SLJIT_CONST sljit_ub reg_map[SLJIT_NUMBER_OF_REGISTERS + 6] = { 95 0, 8, 9, 10, 13, 29, 28, 27, 23, 22, 21, 20, 19, 18, 17, 16, 26, 25, 24, 14, 1, 11, 12, 15 96}; 97 98/* --------------------------------------------------------------------- */ 99/* Instrucion forms */ 100/* --------------------------------------------------------------------- */ 101 102#define D(d) (reg_map[d] << 25) 103#define DA(d) ((d) << 25) 104#define S1(s1) (reg_map[s1] << 14) 105#define S2(s2) (reg_map[s2]) 106#define S1A(s1) ((s1) << 14) 107#define S2A(s2) (s2) 108#define IMM_ARG 0x2000 109#define DOP(op) ((op) << 5) 110#define IMM(imm) (((imm) & 0x1fff) | IMM_ARG) 111 112#define DR(dr) (reg_map[dr]) 113#define OPC1(opcode) ((opcode) << 30) 114#define OPC2(opcode) ((opcode) << 22) 115#define OPC3(opcode) ((opcode) << 19) 116#define SET_FLAGS OPC3(0x10) 117 118#define ADD (OPC1(0x2) | OPC3(0x00)) 119#define ADDC (OPC1(0x2) | OPC3(0x08)) 120#define AND (OPC1(0x2) | OPC3(0x01)) 121#define ANDN (OPC1(0x2) | OPC3(0x05)) 122#define CALL (OPC1(0x1)) 123#define FABSS (OPC1(0x2) | OPC3(0x34) | DOP(0x09)) 124#define FADDD (OPC1(0x2) | OPC3(0x34) | DOP(0x42)) 125#define FADDS (OPC1(0x2) | OPC3(0x34) | DOP(0x41)) 126#define FCMPD (OPC1(0x2) | OPC3(0x35) | DOP(0x52)) 127#define FCMPS (OPC1(0x2) | OPC3(0x35) | DOP(0x51)) 128#define FDIVD (OPC1(0x2) | OPC3(0x34) | DOP(0x4e)) 129#define FDIVS (OPC1(0x2) | OPC3(0x34) | DOP(0x4d)) 130#define FDTOI (OPC1(0x2) | OPC3(0x34) | DOP(0xd2)) 131#define FDTOS (OPC1(0x2) | OPC3(0x34) | DOP(0xc6)) 132#define FITOD (OPC1(0x2) | OPC3(0x34) | DOP(0xc8)) 133#define FITOS (OPC1(0x2) | OPC3(0x34) | DOP(0xc4)) 134#define FMOVS (OPC1(0x2) | OPC3(0x34) | DOP(0x01)) 135#define FMULD (OPC1(0x2) | OPC3(0x34) | DOP(0x4a)) 136#define FMULS (OPC1(0x2) | OPC3(0x34) | DOP(0x49)) 137#define FNEGS (OPC1(0x2) | OPC3(0x34) | DOP(0x05)) 138#define FSTOD (OPC1(0x2) | OPC3(0x34) | DOP(0xc9)) 139#define FSTOI (OPC1(0x2) | OPC3(0x34) | DOP(0xd1)) 140#define FSUBD (OPC1(0x2) | OPC3(0x34) | DOP(0x46)) 141#define FSUBS (OPC1(0x2) | OPC3(0x34) | DOP(0x45)) 142#define JMPL (OPC1(0x2) | OPC3(0x38)) 143#define NOP (OPC1(0x0) | OPC2(0x04)) 144#define OR (OPC1(0x2) | OPC3(0x02)) 145#define ORN (OPC1(0x2) | OPC3(0x06)) 146#define RDY (OPC1(0x2) | OPC3(0x28) | S1A(0)) 147#define RESTORE (OPC1(0x2) | OPC3(0x3d)) 148#define SAVE (OPC1(0x2) | OPC3(0x3c)) 149#define SETHI (OPC1(0x0) | OPC2(0x04)) 150#define SLL (OPC1(0x2) | OPC3(0x25)) 151#define SLLX (OPC1(0x2) | OPC3(0x25) | (1 << 12)) 152#define SRA (OPC1(0x2) | OPC3(0x27)) 153#define SRAX (OPC1(0x2) | OPC3(0x27) | (1 << 12)) 154#define SRL (OPC1(0x2) | OPC3(0x26)) 155#define SRLX (OPC1(0x2) | OPC3(0x26) | (1 << 12)) 156#define SUB (OPC1(0x2) | OPC3(0x04)) 157#define SUBC (OPC1(0x2) | OPC3(0x0c)) 158#define TA (OPC1(0x2) | OPC3(0x3a) | (8 << 25)) 159#define WRY (OPC1(0x2) | OPC3(0x30) | DA(0)) 160#define XOR (OPC1(0x2) | OPC3(0x03)) 161#define XNOR (OPC1(0x2) | OPC3(0x07)) 162 163#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 164#define MAX_DISP (0x1fffff) 165#define MIN_DISP (-0x200000) 166#define DISP_MASK (0x3fffff) 167 168#define BICC (OPC1(0x0) | OPC2(0x2)) 169#define FBFCC (OPC1(0x0) | OPC2(0x6)) 170#define SLL_W SLL 171#define SDIV (OPC1(0x2) | OPC3(0x0f)) 172#define SMUL (OPC1(0x2) | OPC3(0x0b)) 173#define UDIV (OPC1(0x2) | OPC3(0x0e)) 174#define UMUL (OPC1(0x2) | OPC3(0x0a)) 175#else 176#define SLL_W SLLX 177#endif 178 179#define SIMM_MAX (0x0fff) 180#define SIMM_MIN (-0x1000) 181 182/* dest_reg is the absolute name of the register 183 Useful for reordering instructions in the delay slot. */ 184static sljit_si push_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_si delay_slot) 185{ 186 sljit_ins *ptr; 187 SLJIT_ASSERT((delay_slot & DST_INS_MASK) == UNMOVABLE_INS 188 || (delay_slot & DST_INS_MASK) == MOVABLE_INS 189 || (delay_slot & DST_INS_MASK) == ((ins >> 25) & 0x1f)); 190 ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins)); 191 FAIL_IF(!ptr); 192 *ptr = ins; 193 compiler->size++; 194 compiler->delay_slot = delay_slot; 195 return SLJIT_SUCCESS; 196} 197 198static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code) 199{ 200 sljit_sw diff; 201 sljit_uw target_addr; 202 sljit_ins *inst; 203 sljit_ins saved_inst; 204 205 if (jump->flags & SLJIT_REWRITABLE_JUMP) 206 return code_ptr; 207 208 if (jump->flags & JUMP_ADDR) 209 target_addr = jump->u.target; 210 else { 211 SLJIT_ASSERT(jump->flags & JUMP_LABEL); 212 target_addr = (sljit_uw)(code + jump->u.label->size); 213 } 214 inst = (sljit_ins*)jump->addr; 215 216#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 217 if (jump->flags & IS_CALL) { 218 /* Call is always patchable on sparc 32. */ 219 jump->flags |= PATCH_CALL; 220 if (jump->flags & IS_MOVABLE) { 221 inst[0] = inst[-1]; 222 inst[-1] = CALL; 223 jump->addr -= sizeof(sljit_ins); 224 return inst; 225 } 226 inst[0] = CALL; 227 inst[1] = NOP; 228 return inst + 1; 229 } 230#else 231 /* Both calls and BPr instructions shall not pass this point. */ 232#error "Implementation required" 233#endif 234 235 if (jump->flags & IS_COND) 236 inst--; 237 238 if (jump->flags & IS_MOVABLE) { 239 diff = ((sljit_sw)target_addr - (sljit_sw)(inst - 1)) >> 2; 240 if (diff <= MAX_DISP && diff >= MIN_DISP) { 241 jump->flags |= PATCH_B; 242 inst--; 243 if (jump->flags & IS_COND) { 244 saved_inst = inst[0]; 245 inst[0] = inst[1] ^ (1 << 28); 246 inst[1] = saved_inst; 247 } else { 248 inst[1] = inst[0]; 249 inst[0] = BICC | DA(0x8); 250 } 251 jump->addr = (sljit_uw)inst; 252 return inst + 1; 253 } 254 } 255 256 diff = ((sljit_sw)target_addr - (sljit_sw)(inst)) >> 2; 257 if (diff <= MAX_DISP && diff >= MIN_DISP) { 258 jump->flags |= PATCH_B; 259 if (jump->flags & IS_COND) 260 inst[0] ^= (1 << 28); 261 else 262 inst[0] = BICC | DA(0x8); 263 inst[1] = NOP; 264 jump->addr = (sljit_uw)inst; 265 return inst + 1; 266 } 267 268 return code_ptr; 269} 270 271SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler) 272{ 273 struct sljit_memory_fragment *buf; 274 sljit_ins *code; 275 sljit_ins *code_ptr; 276 sljit_ins *buf_ptr; 277 sljit_ins *buf_end; 278 sljit_uw word_count; 279 sljit_uw addr; 280 281 struct sljit_label *label; 282 struct sljit_jump *jump; 283 struct sljit_const *const_; 284 285 CHECK_ERROR_PTR(); 286 check_sljit_generate_code(compiler); 287 reverse_buf(compiler); 288 289 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins)); 290 PTR_FAIL_WITH_EXEC_IF(code); 291 buf = compiler->buf; 292 293 code_ptr = code; 294 word_count = 0; 295 label = compiler->labels; 296 jump = compiler->jumps; 297 const_ = compiler->consts; 298 do { 299 buf_ptr = (sljit_ins*)buf->memory; 300 buf_end = buf_ptr + (buf->used_size >> 2); 301 do { 302 *code_ptr = *buf_ptr++; 303 SLJIT_ASSERT(!label || label->size >= word_count); 304 SLJIT_ASSERT(!jump || jump->addr >= word_count); 305 SLJIT_ASSERT(!const_ || const_->addr >= word_count); 306 /* These structures are ordered by their address. */ 307 if (label && label->size == word_count) { 308 /* Just recording the address. */ 309 label->addr = (sljit_uw)code_ptr; 310 label->size = code_ptr - code; 311 label = label->next; 312 } 313 if (jump && jump->addr == word_count) { 314#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 315 jump->addr = (sljit_uw)(code_ptr - 3); 316#else 317 jump->addr = (sljit_uw)(code_ptr - 6); 318#endif 319 code_ptr = detect_jump_type(jump, code_ptr, code); 320 jump = jump->next; 321 } 322 if (const_ && const_->addr == word_count) { 323 /* Just recording the address. */ 324 const_->addr = (sljit_uw)code_ptr; 325 const_ = const_->next; 326 } 327 code_ptr ++; 328 word_count ++; 329 } while (buf_ptr < buf_end); 330 331 buf = buf->next; 332 } while (buf); 333 334 if (label && label->size == word_count) { 335 label->addr = (sljit_uw)code_ptr; 336 label->size = code_ptr - code; 337 label = label->next; 338 } 339 340 SLJIT_ASSERT(!label); 341 SLJIT_ASSERT(!jump); 342 SLJIT_ASSERT(!const_); 343 SLJIT_ASSERT(code_ptr - code <= (sljit_si)compiler->size); 344 345 jump = compiler->jumps; 346 while (jump) { 347 do { 348 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target; 349 buf_ptr = (sljit_ins*)jump->addr; 350 351 if (jump->flags & PATCH_CALL) { 352 addr = (sljit_sw)(addr - jump->addr) >> 2; 353 SLJIT_ASSERT((sljit_sw)addr <= 0x1fffffff && (sljit_sw)addr >= -0x20000000); 354 buf_ptr[0] = CALL | (addr & 0x3fffffff); 355 break; 356 } 357 if (jump->flags & PATCH_B) { 358 addr = (sljit_sw)(addr - jump->addr) >> 2; 359 SLJIT_ASSERT((sljit_sw)addr <= MAX_DISP && (sljit_sw)addr >= MIN_DISP); 360 buf_ptr[0] = (buf_ptr[0] & ~DISP_MASK) | (addr & DISP_MASK); 361 break; 362 } 363 364 /* Set the fields of immediate loads. */ 365#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 366 buf_ptr[0] = (buf_ptr[0] & 0xffc00000) | ((addr >> 10) & 0x3fffff); 367 buf_ptr[1] = (buf_ptr[1] & 0xfffffc00) | (addr & 0x3ff); 368#else 369#error "Implementation required" 370#endif 371 } while (0); 372 jump = jump->next; 373 } 374 375 376 compiler->error = SLJIT_ERR_COMPILED; 377 compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins); 378 SLJIT_CACHE_FLUSH(code, code_ptr); 379 return code; 380} 381 382/* --------------------------------------------------------------------- */ 383/* Entry, exit */ 384/* --------------------------------------------------------------------- */ 385 386/* Creates an index in data_transfer_insts array. */ 387#define LOAD_DATA 0x01 388#define WORD_DATA 0x00 389#define BYTE_DATA 0x02 390#define HALF_DATA 0x04 391#define INT_DATA 0x06 392#define SIGNED_DATA 0x08 393/* Separates integer and floating point registers */ 394#define GPR_REG 0x0f 395#define DOUBLE_DATA 0x10 396#define SINGLE_DATA 0x12 397 398#define MEM_MASK 0x1f 399 400#define WRITE_BACK 0x00020 401#define ARG_TEST 0x00040 402#define ALT_KEEP_CACHE 0x00080 403#define CUMULATIVE_OP 0x00100 404#define IMM_OP 0x00200 405#define SRC2_IMM 0x00400 406 407#define REG_DEST 0x00800 408#define REG2_SOURCE 0x01000 409#define SLOW_SRC1 0x02000 410#define SLOW_SRC2 0x04000 411#define SLOW_DEST 0x08000 412 413/* SET_FLAGS (0x10 << 19) also belong here! */ 414 415#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 416#include "sljitNativeSPARC_32.c" 417#else 418#include "sljitNativeSPARC_64.c" 419#endif 420 421SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_enter(struct sljit_compiler *compiler, 422 sljit_si options, sljit_si args, sljit_si scratches, sljit_si saveds, 423 sljit_si fscratches, sljit_si fsaveds, sljit_si local_size) 424{ 425 CHECK_ERROR(); 426 check_sljit_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size); 427 428 compiler->options = options; 429 compiler->scratches = scratches; 430 compiler->saveds = saveds; 431 compiler->fscratches = fscratches; 432 compiler->fsaveds = fsaveds; 433#if (defined SLJIT_DEBUG && SLJIT_DEBUG) 434 compiler->logical_local_size = local_size; 435#endif 436 437 local_size = (local_size + FIXED_LOCALS_OFFSET + 7) & ~0x7; 438 compiler->local_size = local_size; 439 440 if (local_size <= SIMM_MAX) { 441 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | IMM(-local_size), UNMOVABLE_INS)); 442 } 443 else { 444 FAIL_IF(load_immediate(compiler, TMP_REG1, -local_size)); 445 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | S2(TMP_REG1), UNMOVABLE_INS)); 446 } 447 448 /* Arguments are in their appropriate registers. */ 449 450 return SLJIT_SUCCESS; 451} 452 453SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, 454 sljit_si options, sljit_si args, sljit_si scratches, sljit_si saveds, 455 sljit_si fscratches, sljit_si fsaveds, sljit_si local_size) 456{ 457 CHECK_ERROR_VOID(); 458 check_sljit_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size); 459 460 compiler->options = options; 461 compiler->scratches = scratches; 462 compiler->saveds = saveds; 463 compiler->fscratches = fscratches; 464 compiler->fsaveds = fsaveds; 465#if (defined SLJIT_DEBUG && SLJIT_DEBUG) 466 compiler->logical_local_size = local_size; 467#endif 468 469 compiler->local_size = (local_size + FIXED_LOCALS_OFFSET + 7) & ~0x7; 470} 471 472SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_return(struct sljit_compiler *compiler, sljit_si op, sljit_si src, sljit_sw srcw) 473{ 474 CHECK_ERROR(); 475 check_sljit_emit_return(compiler, op, src, srcw); 476 477 if (op != SLJIT_MOV || !FAST_IS_REG(src)) { 478 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw)); 479 src = SLJIT_R0; 480 } 481 482 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1A(31) | IMM(8), UNMOVABLE_INS)); 483 return push_inst(compiler, RESTORE | D(SLJIT_R0) | S1(src) | S2(0), UNMOVABLE_INS); 484} 485 486/* --------------------------------------------------------------------- */ 487/* Operators */ 488/* --------------------------------------------------------------------- */ 489 490#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 491#define ARCH_32_64(a, b) a 492#else 493#define ARCH_32_64(a, b) b 494#endif 495 496static SLJIT_CONST sljit_ins data_transfer_insts[16 + 4] = { 497/* u w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */), 498/* u w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */), 499/* u b s */ OPC1(3) | OPC3(0x05) /* stb */, 500/* u b l */ OPC1(3) | OPC3(0x01) /* ldub */, 501/* u h s */ OPC1(3) | OPC3(0x06) /* sth */, 502/* u h l */ OPC1(3) | OPC3(0x02) /* lduh */, 503/* u i s */ OPC1(3) | OPC3(0x04) /* stw */, 504/* u i l */ OPC1(3) | OPC3(0x00) /* lduw */, 505 506/* s w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */), 507/* s w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */), 508/* s b s */ OPC1(3) | OPC3(0x05) /* stb */, 509/* s b l */ OPC1(3) | OPC3(0x09) /* ldsb */, 510/* s h s */ OPC1(3) | OPC3(0x06) /* sth */, 511/* s h l */ OPC1(3) | OPC3(0x0a) /* ldsh */, 512/* s i s */ OPC1(3) | OPC3(0x04) /* stw */, 513/* s i l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x08) /* ldsw */), 514 515/* d s */ OPC1(3) | OPC3(0x27), 516/* d l */ OPC1(3) | OPC3(0x23), 517/* s s */ OPC1(3) | OPC3(0x24), 518/* s l */ OPC1(3) | OPC3(0x20), 519}; 520 521#undef ARCH_32_64 522 523/* Can perform an operation using at most 1 instruction. */ 524static sljit_si getput_arg_fast(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw) 525{ 526 SLJIT_ASSERT(arg & SLJIT_MEM); 527 528 if (!(flags & WRITE_BACK) || !(arg & REG_MASK)) { 529 if ((!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN) 530 || ((arg & OFFS_REG_MASK) && (argw & 0x3) == 0)) { 531 /* Works for both absoulte and relative addresses (immediate case). */ 532 if (SLJIT_UNLIKELY(flags & ARG_TEST)) 533 return 1; 534 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] 535 | ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg)) 536 | S1(arg & REG_MASK) | ((arg & OFFS_REG_MASK) ? S2(OFFS_REG(arg)) : IMM(argw)), 537 ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS)); 538 return -1; 539 } 540 } 541 return 0; 542} 543 544/* See getput_arg below. 545 Note: can_cache is called only for binary operators. Those 546 operators always uses word arguments without write back. */ 547static sljit_si can_cache(sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw) 548{ 549 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM)); 550 551 /* Simple operation except for updates. */ 552 if (arg & OFFS_REG_MASK) { 553 argw &= 0x3; 554 SLJIT_ASSERT(argw); 555 next_argw &= 0x3; 556 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == next_argw) 557 return 1; 558 return 0; 559 } 560 561 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN)) 562 return 1; 563 return 0; 564} 565 566/* Emit the necessary instructions. See can_cache above. */ 567static sljit_si getput_arg(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw) 568{ 569 sljit_si base, arg2, delay_slot; 570 sljit_ins dest; 571 572 SLJIT_ASSERT(arg & SLJIT_MEM); 573 if (!(next_arg & SLJIT_MEM)) { 574 next_arg = 0; 575 next_argw = 0; 576 } 577 578 base = arg & REG_MASK; 579 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) { 580 argw &= 0x3; 581 SLJIT_ASSERT(argw != 0); 582 583 /* Using the cache. */ 584 if (((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) && (argw == compiler->cache_argw)) 585 arg2 = TMP_REG3; 586 else { 587 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == (next_argw & 0x3)) { 588 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK); 589 compiler->cache_argw = argw; 590 arg2 = TMP_REG3; 591 } 592 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base && reg != OFFS_REG(arg)) 593 arg2 = reg; 594 else /* It must be a mov operation, so tmp1 must be free to use. */ 595 arg2 = TMP_REG1; 596 FAIL_IF(push_inst(compiler, SLL_W | D(arg2) | S1(OFFS_REG(arg)) | IMM_ARG | argw, DR(arg2))); 597 } 598 } 599 else { 600 /* Using the cache. */ 601 if ((compiler->cache_arg == SLJIT_MEM) && (argw - compiler->cache_argw) <= SIMM_MAX && (argw - compiler->cache_argw) >= SIMM_MIN) { 602 if (argw != compiler->cache_argw) { 603 FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | S1(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); 604 compiler->cache_argw = argw; 605 } 606 arg2 = TMP_REG3; 607 } else { 608 if ((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN) { 609 compiler->cache_arg = SLJIT_MEM; 610 compiler->cache_argw = argw; 611 arg2 = TMP_REG3; 612 } 613 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base) 614 arg2 = reg; 615 else /* It must be a mov operation, so tmp1 must be free to use. */ 616 arg2 = TMP_REG1; 617 FAIL_IF(load_immediate(compiler, arg2, argw)); 618 } 619 } 620 621 dest = ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg)); 622 delay_slot = ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS; 623 if (!base) 624 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(arg2) | IMM(0), delay_slot); 625 if (!(flags & WRITE_BACK)) 626 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot); 627 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot)); 628 return push_inst(compiler, ADD | D(base) | S1(base) | S2(arg2), DR(base)); 629} 630 631static SLJIT_INLINE sljit_si emit_op_mem(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw) 632{ 633 if (getput_arg_fast(compiler, flags, reg, arg, argw)) 634 return compiler->error; 635 compiler->cache_arg = 0; 636 compiler->cache_argw = 0; 637 return getput_arg(compiler, flags, reg, arg, argw, 0, 0); 638} 639 640static SLJIT_INLINE sljit_si emit_op_mem2(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg1, sljit_sw arg1w, sljit_si arg2, sljit_sw arg2w) 641{ 642 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w)) 643 return compiler->error; 644 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w); 645} 646 647static sljit_si emit_op(struct sljit_compiler *compiler, sljit_si op, sljit_si flags, 648 sljit_si dst, sljit_sw dstw, 649 sljit_si src1, sljit_sw src1w, 650 sljit_si src2, sljit_sw src2w) 651{ 652 /* arg1 goes to TMP_REG1 or src reg 653 arg2 goes to TMP_REG2, imm or src reg 654 TMP_REG3 can be used for caching 655 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */ 656 sljit_si dst_r = TMP_REG2; 657 sljit_si src1_r; 658 sljit_sw src2_r = 0; 659 sljit_si sugg_src2_r = TMP_REG2; 660 661 if (!(flags & ALT_KEEP_CACHE)) { 662 compiler->cache_arg = 0; 663 compiler->cache_argw = 0; 664 } 665 666 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) { 667 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM)) 668 return SLJIT_SUCCESS; 669 } 670 else if (FAST_IS_REG(dst)) { 671 dst_r = dst; 672 flags |= REG_DEST; 673 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) 674 sugg_src2_r = dst_r; 675 } 676 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, TMP_REG1, dst, dstw)) 677 flags |= SLOW_DEST; 678 679 if (flags & IMM_OP) { 680 if ((src2 & SLJIT_IMM) && src2w) { 681 if (src2w <= SIMM_MAX && src2w >= SIMM_MIN) { 682 flags |= SRC2_IMM; 683 src2_r = src2w; 684 } 685 } 686 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) { 687 if (src1w <= SIMM_MAX && src1w >= SIMM_MIN) { 688 flags |= SRC2_IMM; 689 src2_r = src1w; 690 691 /* And swap arguments. */ 692 src1 = src2; 693 src1w = src2w; 694 src2 = SLJIT_IMM; 695 /* src2w = src2_r unneeded. */ 696 } 697 } 698 } 699 700 /* Source 1. */ 701 if (FAST_IS_REG(src1)) 702 src1_r = src1; 703 else if (src1 & SLJIT_IMM) { 704 if (src1w) { 705 FAIL_IF(load_immediate(compiler, TMP_REG1, src1w)); 706 src1_r = TMP_REG1; 707 } 708 else 709 src1_r = 0; 710 } 711 else { 712 if (getput_arg_fast(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w)) 713 FAIL_IF(compiler->error); 714 else 715 flags |= SLOW_SRC1; 716 src1_r = TMP_REG1; 717 } 718 719 /* Source 2. */ 720 if (FAST_IS_REG(src2)) { 721 src2_r = src2; 722 flags |= REG2_SOURCE; 723 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) 724 dst_r = src2_r; 725 } 726 else if (src2 & SLJIT_IMM) { 727 if (!(flags & SRC2_IMM)) { 728 if (src2w) { 729 FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w)); 730 src2_r = sugg_src2_r; 731 } 732 else { 733 src2_r = 0; 734 if ((op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) && (dst & SLJIT_MEM)) 735 dst_r = 0; 736 } 737 } 738 } 739 else { 740 if (getput_arg_fast(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w)) 741 FAIL_IF(compiler->error); 742 else 743 flags |= SLOW_SRC2; 744 src2_r = sugg_src2_r; 745 } 746 747 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 748 SLJIT_ASSERT(src2_r == TMP_REG2); 749 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 750 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w)); 751 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw)); 752 } 753 else { 754 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w)); 755 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw)); 756 } 757 } 758 else if (flags & SLOW_SRC1) 759 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw)); 760 else if (flags & SLOW_SRC2) 761 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw)); 762 763 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r)); 764 765 if (dst & SLJIT_MEM) { 766 if (!(flags & SLOW_DEST)) { 767 getput_arg_fast(compiler, flags, dst_r, dst, dstw); 768 return compiler->error; 769 } 770 return getput_arg(compiler, flags, dst_r, dst, dstw, 0, 0); 771 } 772 773 return SLJIT_SUCCESS; 774} 775 776SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op0(struct sljit_compiler *compiler, sljit_si op) 777{ 778 CHECK_ERROR(); 779 check_sljit_emit_op0(compiler, op); 780 781 op = GET_OPCODE(op); 782 switch (op) { 783 case SLJIT_BREAKPOINT: 784 return push_inst(compiler, TA, UNMOVABLE_INS); 785 case SLJIT_NOP: 786 return push_inst(compiler, NOP, UNMOVABLE_INS); 787 case SLJIT_UMUL: 788 case SLJIT_SMUL: 789#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 790 FAIL_IF(push_inst(compiler, (op == SLJIT_UMUL ? UMUL : SMUL) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0))); 791 return push_inst(compiler, RDY | D(SLJIT_R1), DR(SLJIT_R1)); 792#else 793#error "Implementation required" 794#endif 795 case SLJIT_UDIV: 796 case SLJIT_SDIV: 797#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 798 if (op == SLJIT_UDIV) 799 FAIL_IF(push_inst(compiler, WRY | S1(0), MOVABLE_INS)); 800 else { 801 FAIL_IF(push_inst(compiler, SRA | D(TMP_REG1) | S1(SLJIT_R0) | IMM(31), DR(TMP_REG1))); 802 FAIL_IF(push_inst(compiler, WRY | S1(TMP_REG1), MOVABLE_INS)); 803 } 804 FAIL_IF(push_inst(compiler, OR | D(TMP_REG2) | S1(0) | S2(SLJIT_R0), DR(TMP_REG2))); 805 FAIL_IF(push_inst(compiler, (op == SLJIT_UDIV ? UDIV : SDIV) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0))); 806 FAIL_IF(push_inst(compiler, SMUL | D(SLJIT_R1) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R1))); 807 FAIL_IF(push_inst(compiler, SUB | D(SLJIT_R1) | S1(TMP_REG2) | S2(SLJIT_R1), DR(SLJIT_R1))); 808 return SLJIT_SUCCESS; 809#else 810#error "Implementation required" 811#endif 812 } 813 814 return SLJIT_SUCCESS; 815} 816 817SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op1(struct sljit_compiler *compiler, sljit_si op, 818 sljit_si dst, sljit_sw dstw, 819 sljit_si src, sljit_sw srcw) 820{ 821 sljit_si flags = GET_FLAGS(op) ? SET_FLAGS : 0; 822 823 CHECK_ERROR(); 824 check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw); 825 ADJUST_LOCAL_OFFSET(dst, dstw); 826 ADJUST_LOCAL_OFFSET(src, srcw); 827 828 op = GET_OPCODE(op); 829 switch (op) { 830 case SLJIT_MOV: 831 case SLJIT_MOV_P: 832 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 833 834 case SLJIT_MOV_UI: 835 return emit_op(compiler, SLJIT_MOV_UI, flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 836 837 case SLJIT_MOV_SI: 838 return emit_op(compiler, SLJIT_MOV_SI, flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw); 839 840 case SLJIT_MOV_UB: 841 return emit_op(compiler, SLJIT_MOV_UB, flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw); 842 843 case SLJIT_MOV_SB: 844 return emit_op(compiler, SLJIT_MOV_SB, flags | BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sb)srcw : srcw); 845 846 case SLJIT_MOV_UH: 847 return emit_op(compiler, SLJIT_MOV_UH, flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw); 848 849 case SLJIT_MOV_SH: 850 return emit_op(compiler, SLJIT_MOV_SH, flags | HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sh)srcw : srcw); 851 852 case SLJIT_MOVU: 853 case SLJIT_MOVU_P: 854 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 855 856 case SLJIT_MOVU_UI: 857 return emit_op(compiler, SLJIT_MOV_UI, flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 858 859 case SLJIT_MOVU_SI: 860 return emit_op(compiler, SLJIT_MOV_SI, flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); 861 862 case SLJIT_MOVU_UB: 863 return emit_op(compiler, SLJIT_MOV_UB, flags | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw); 864 865 case SLJIT_MOVU_SB: 866 return emit_op(compiler, SLJIT_MOV_SB, flags | BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sb)srcw : srcw); 867 868 case SLJIT_MOVU_UH: 869 return emit_op(compiler, SLJIT_MOV_UH, flags | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw); 870 871 case SLJIT_MOVU_SH: 872 return emit_op(compiler, SLJIT_MOV_SH, flags | HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sh)srcw : srcw); 873 874 case SLJIT_NOT: 875 case SLJIT_CLZ: 876 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw); 877 878 case SLJIT_NEG: 879 return emit_op(compiler, SLJIT_SUB, flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw); 880 } 881 882 return SLJIT_SUCCESS; 883} 884 885SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op2(struct sljit_compiler *compiler, sljit_si op, 886 sljit_si dst, sljit_sw dstw, 887 sljit_si src1, sljit_sw src1w, 888 sljit_si src2, sljit_sw src2w) 889{ 890 sljit_si flags = GET_FLAGS(op) ? SET_FLAGS : 0; 891 892 CHECK_ERROR(); 893 check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w); 894 ADJUST_LOCAL_OFFSET(dst, dstw); 895 ADJUST_LOCAL_OFFSET(src1, src1w); 896 ADJUST_LOCAL_OFFSET(src2, src2w); 897 898 op = GET_OPCODE(op); 899 switch (op) { 900 case SLJIT_ADD: 901 case SLJIT_ADDC: 902 case SLJIT_MUL: 903 case SLJIT_AND: 904 case SLJIT_OR: 905 case SLJIT_XOR: 906 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 907 908 case SLJIT_SUB: 909 case SLJIT_SUBC: 910 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 911 912 case SLJIT_SHL: 913 case SLJIT_LSHR: 914 case SLJIT_ASHR: 915#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 916 if (src2 & SLJIT_IMM) 917 src2w &= 0x1f; 918#else 919 SLJIT_ASSERT_STOP(); 920#endif 921 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); 922 } 923 924 return SLJIT_SUCCESS; 925} 926 927SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_register_index(sljit_si reg) 928{ 929 check_sljit_get_register_index(reg); 930 return reg_map[reg]; 931} 932 933SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_float_register_index(sljit_si reg) 934{ 935 check_sljit_get_float_register_index(reg); 936 return reg << 1; 937} 938 939SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_custom(struct sljit_compiler *compiler, 940 void *instruction, sljit_si size) 941{ 942 CHECK_ERROR(); 943 check_sljit_emit_op_custom(compiler, instruction, size); 944 SLJIT_ASSERT(size == 4); 945 946 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS); 947} 948 949/* --------------------------------------------------------------------- */ 950/* Floating point operators */ 951/* --------------------------------------------------------------------- */ 952 953SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_is_fpu_available(void) 954{ 955#ifdef SLJIT_IS_FPU_AVAILABLE 956 return SLJIT_IS_FPU_AVAILABLE; 957#else 958 /* Available by default. */ 959 return 1; 960#endif 961} 962 963#define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_SINGLE_OP) >> 7)) 964#define SELECT_FOP(op, single, double) ((op & SLJIT_SINGLE_OP) ? single : double) 965#define FLOAT_TMP_MEM_OFFSET (22 * sizeof(sljit_sw)) 966 967static SLJIT_INLINE sljit_si sljit_emit_fop1_convw_fromd(struct sljit_compiler *compiler, sljit_si op, 968 sljit_si dst, sljit_sw dstw, 969 sljit_si src, sljit_sw srcw) 970{ 971 if (src & SLJIT_MEM) { 972 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw)); 973 src = TMP_FREG1; 974 } 975 else 976 src <<= 1; 977 978 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOI, FDTOI) | DA(TMP_FREG1) | S2A(src), MOVABLE_INS)); 979 980 if (dst == SLJIT_UNUSED) 981 return SLJIT_SUCCESS; 982 983 if (FAST_IS_REG(dst)) { 984 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)); 985 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); 986 } 987 988 /* Store the integer value from a VFP register. */ 989 return emit_op_mem2(compiler, SINGLE_DATA, TMP_FREG1, dst, dstw, 0, 0); 990} 991 992static SLJIT_INLINE sljit_si sljit_emit_fop1_convd_fromw(struct sljit_compiler *compiler, sljit_si op, 993 sljit_si dst, sljit_sw dstw, 994 sljit_si src, sljit_sw srcw) 995{ 996 sljit_si dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1; 997 998 if (src & SLJIT_IMM) { 999#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) 1000 if (GET_OPCODE(op) == SLJIT_CONVD_FROMI) 1001 srcw = (sljit_si)srcw; 1002#endif 1003 FAIL_IF(load_immediate(compiler, TMP_REG1, srcw)); 1004 src = TMP_REG1; 1005 srcw = 0; 1006 } 1007 1008 if (FAST_IS_REG(src)) { 1009 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)); 1010 src = SLJIT_MEM1(SLJIT_SP); 1011 srcw = FLOAT_TMP_MEM_OFFSET; 1012 } 1013 1014 FAIL_IF(emit_op_mem2(compiler, SINGLE_DATA | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw)); 1015 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FITOS, FITOD) | DA(dst_r) | S2A(TMP_FREG1), MOVABLE_INS)); 1016 1017 if (dst & SLJIT_MEM) 1018 return emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, 0, 0); 1019 return SLJIT_SUCCESS; 1020} 1021 1022static SLJIT_INLINE sljit_si sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_si op, 1023 sljit_si src1, sljit_sw src1w, 1024 sljit_si src2, sljit_sw src2w) 1025{ 1026 if (src1 & SLJIT_MEM) { 1027 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w)); 1028 src1 = TMP_FREG1; 1029 } 1030 else 1031 src1 <<= 1; 1032 1033 if (src2 & SLJIT_MEM) { 1034 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0)); 1035 src2 = TMP_FREG2; 1036 } 1037 else 1038 src2 <<= 1; 1039 1040 return push_inst(compiler, SELECT_FOP(op, FCMPS, FCMPD) | S1A(src1) | S2A(src2), FCC_IS_SET | MOVABLE_INS); 1041} 1042 1043SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop1(struct sljit_compiler *compiler, sljit_si op, 1044 sljit_si dst, sljit_sw dstw, 1045 sljit_si src, sljit_sw srcw) 1046{ 1047 sljit_si dst_r; 1048 1049 CHECK_ERROR(); 1050 compiler->cache_arg = 0; 1051 compiler->cache_argw = 0; 1052 1053 SLJIT_COMPILE_ASSERT((SLJIT_SINGLE_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error); 1054 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw); 1055 1056 if (GET_OPCODE(op) == SLJIT_CONVD_FROMS) 1057 op ^= SLJIT_SINGLE_OP; 1058 1059 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1; 1060 1061 if (src & SLJIT_MEM) { 1062 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, dst, dstw)); 1063 src = dst_r; 1064 } 1065 else 1066 src <<= 1; 1067 1068 switch (GET_OPCODE(op)) { 1069 case SLJIT_MOVD: 1070 if (src != dst_r) { 1071 if (dst_r != TMP_FREG1) { 1072 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r) | S2A(src), MOVABLE_INS)); 1073 if (!(op & SLJIT_SINGLE_OP)) 1074 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS)); 1075 } 1076 else 1077 dst_r = src; 1078 } 1079 break; 1080 case SLJIT_NEGD: 1081 FAIL_IF(push_inst(compiler, FNEGS | DA(dst_r) | S2A(src), MOVABLE_INS)); 1082 if (dst_r != src && !(op & SLJIT_SINGLE_OP)) 1083 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS)); 1084 break; 1085 case SLJIT_ABSD: 1086 FAIL_IF(push_inst(compiler, FABSS | DA(dst_r) | S2A(src), MOVABLE_INS)); 1087 if (dst_r != src && !(op & SLJIT_SINGLE_OP)) 1088 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS)); 1089 break; 1090 case SLJIT_CONVD_FROMS: 1091 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOD, FDTOS) | DA(dst_r) | S2A(src), MOVABLE_INS)); 1092 op ^= SLJIT_SINGLE_OP; 1093 break; 1094 } 1095 1096 if (dst & SLJIT_MEM) 1097 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), dst_r, dst, dstw, 0, 0)); 1098 return SLJIT_SUCCESS; 1099} 1100 1101SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop2(struct sljit_compiler *compiler, sljit_si op, 1102 sljit_si dst, sljit_sw dstw, 1103 sljit_si src1, sljit_sw src1w, 1104 sljit_si src2, sljit_sw src2w) 1105{ 1106 sljit_si dst_r, flags = 0; 1107 1108 CHECK_ERROR(); 1109 check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w); 1110 ADJUST_LOCAL_OFFSET(dst, dstw); 1111 ADJUST_LOCAL_OFFSET(src1, src1w); 1112 ADJUST_LOCAL_OFFSET(src2, src2w); 1113 1114 compiler->cache_arg = 0; 1115 compiler->cache_argw = 0; 1116 1117 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG2; 1118 1119 if (src1 & SLJIT_MEM) { 1120 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) { 1121 FAIL_IF(compiler->error); 1122 src1 = TMP_FREG1; 1123 } else 1124 flags |= SLOW_SRC1; 1125 } 1126 else 1127 src1 <<= 1; 1128 1129 if (src2 & SLJIT_MEM) { 1130 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) { 1131 FAIL_IF(compiler->error); 1132 src2 = TMP_FREG2; 1133 } else 1134 flags |= SLOW_SRC2; 1135 } 1136 else 1137 src2 <<= 1; 1138 1139 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { 1140 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { 1141 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w)); 1142 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw)); 1143 } 1144 else { 1145 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w)); 1146 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw)); 1147 } 1148 } 1149 else if (flags & SLOW_SRC1) 1150 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw)); 1151 else if (flags & SLOW_SRC2) 1152 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw)); 1153 1154 if (flags & SLOW_SRC1) 1155 src1 = TMP_FREG1; 1156 if (flags & SLOW_SRC2) 1157 src2 = TMP_FREG2; 1158 1159 switch (GET_OPCODE(op)) { 1160 case SLJIT_ADDD: 1161 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FADDS, FADDD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS)); 1162 break; 1163 1164 case SLJIT_SUBD: 1165 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSUBS, FSUBD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS)); 1166 break; 1167 1168 case SLJIT_MULD: 1169 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FMULS, FMULD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS)); 1170 break; 1171 1172 case SLJIT_DIVD: 1173 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FDIVS, FDIVD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS)); 1174 break; 1175 } 1176 1177 if (dst_r == TMP_FREG2) 1178 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0)); 1179 1180 return SLJIT_SUCCESS; 1181} 1182 1183#undef FLOAT_DATA 1184#undef SELECT_FOP 1185 1186/* --------------------------------------------------------------------- */ 1187/* Other instructions */ 1188/* --------------------------------------------------------------------- */ 1189 1190SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw) 1191{ 1192 CHECK_ERROR(); 1193 check_sljit_emit_fast_enter(compiler, dst, dstw); 1194 ADJUST_LOCAL_OFFSET(dst, dstw); 1195 1196 /* For UNUSED dst. Uncommon, but possible. */ 1197 if (dst == SLJIT_UNUSED) 1198 return SLJIT_SUCCESS; 1199 1200 if (FAST_IS_REG(dst)) 1201 return push_inst(compiler, OR | D(dst) | S1(0) | S2(TMP_LINK), DR(dst)); 1202 1203 /* Memory. */ 1204 return emit_op_mem(compiler, WORD_DATA, TMP_LINK, dst, dstw); 1205} 1206 1207SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_si src, sljit_sw srcw) 1208{ 1209 CHECK_ERROR(); 1210 check_sljit_emit_fast_return(compiler, src, srcw); 1211 ADJUST_LOCAL_OFFSET(src, srcw); 1212 1213 if (FAST_IS_REG(src)) 1214 FAIL_IF(push_inst(compiler, OR | D(TMP_LINK) | S1(0) | S2(src), DR(TMP_LINK))); 1215 else if (src & SLJIT_MEM) 1216 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_LINK, src, srcw)); 1217 else if (src & SLJIT_IMM) 1218 FAIL_IF(load_immediate(compiler, TMP_LINK, srcw)); 1219 1220 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1(TMP_LINK) | IMM(8), UNMOVABLE_INS)); 1221 return push_inst(compiler, NOP, UNMOVABLE_INS); 1222} 1223 1224/* --------------------------------------------------------------------- */ 1225/* Conditional instructions */ 1226/* --------------------------------------------------------------------- */ 1227 1228SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler) 1229{ 1230 struct sljit_label *label; 1231 1232 CHECK_ERROR_PTR(); 1233 check_sljit_emit_label(compiler); 1234 1235 if (compiler->last_label && compiler->last_label->size == compiler->size) 1236 return compiler->last_label; 1237 1238 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label)); 1239 PTR_FAIL_IF(!label); 1240 set_label(label, compiler); 1241 compiler->delay_slot = UNMOVABLE_INS; 1242 return label; 1243} 1244 1245static sljit_ins get_cc(sljit_si type) 1246{ 1247 switch (type) { 1248 case SLJIT_C_EQUAL: 1249 case SLJIT_C_MUL_NOT_OVERFLOW: 1250 return DA(0x1); 1251 1252 case SLJIT_C_NOT_EQUAL: 1253 case SLJIT_C_MUL_OVERFLOW: 1254 return DA(0x9); 1255 1256 case SLJIT_C_LESS: 1257 return DA(0x5); 1258 1259 case SLJIT_C_GREATER_EQUAL: 1260 return DA(0xd); 1261 1262 case SLJIT_C_GREATER: 1263 return DA(0xc); 1264 1265 case SLJIT_C_LESS_EQUAL: 1266 return DA(0x4); 1267 1268 case SLJIT_C_SIG_LESS: 1269 return DA(0x3); 1270 1271 case SLJIT_C_SIG_GREATER_EQUAL: 1272 return DA(0xb); 1273 1274 case SLJIT_C_SIG_GREATER: 1275 return DA(0xa); 1276 1277 case SLJIT_C_SIG_LESS_EQUAL: 1278 return DA(0x2); 1279 1280 case SLJIT_C_OVERFLOW: 1281 return DA(0x7); 1282 1283 case SLJIT_C_NOT_OVERFLOW: 1284 return DA(0xf); 1285 1286 case SLJIT_C_FLOAT_EQUAL: 1287 return DA(0x9); 1288 1289 case SLJIT_C_FLOAT_NOT_EQUAL: /* Unordered. */ 1290 return DA(0x1); 1291 1292 case SLJIT_C_FLOAT_LESS: 1293 return DA(0x4); 1294 1295 case SLJIT_C_FLOAT_GREATER_EQUAL: /* Unordered. */ 1296 return DA(0xc); 1297 1298 case SLJIT_C_FLOAT_LESS_EQUAL: 1299 return DA(0xd); 1300 1301 case SLJIT_C_FLOAT_GREATER: /* Unordered. */ 1302 return DA(0x5); 1303 1304 case SLJIT_C_FLOAT_UNORDERED: 1305 return DA(0x7); 1306 1307 case SLJIT_C_FLOAT_ORDERED: 1308 return DA(0xf); 1309 1310 default: 1311 SLJIT_ASSERT_STOP(); 1312 return DA(0x8); 1313 } 1314} 1315 1316SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_si type) 1317{ 1318 struct sljit_jump *jump; 1319 1320 CHECK_ERROR_PTR(); 1321 check_sljit_emit_jump(compiler, type); 1322 1323 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1324 PTR_FAIL_IF(!jump); 1325 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); 1326 type &= 0xff; 1327 1328 if (type < SLJIT_C_FLOAT_EQUAL) { 1329 jump->flags |= IS_COND; 1330 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & ICC_IS_SET)) 1331 jump->flags |= IS_MOVABLE; 1332#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 1333 PTR_FAIL_IF(push_inst(compiler, BICC | get_cc(type ^ 1) | 5, UNMOVABLE_INS)); 1334#else 1335#error "Implementation required" 1336#endif 1337 } 1338 else if (type < SLJIT_JUMP) { 1339 jump->flags |= IS_COND; 1340 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & FCC_IS_SET)) 1341 jump->flags |= IS_MOVABLE; 1342#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 1343 PTR_FAIL_IF(push_inst(compiler, FBFCC | get_cc(type ^ 1) | 5, UNMOVABLE_INS)); 1344#else 1345#error "Implementation required" 1346#endif 1347 } else { 1348 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) 1349 jump->flags |= IS_MOVABLE; 1350 if (type >= SLJIT_FAST_CALL) 1351 jump->flags |= IS_CALL; 1352 } 1353 1354 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1355 PTR_FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(TMP_REG2) | IMM(0), UNMOVABLE_INS)); 1356 jump->addr = compiler->size; 1357 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); 1358 1359 return jump; 1360} 1361 1362SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_ijump(struct sljit_compiler *compiler, sljit_si type, sljit_si src, sljit_sw srcw) 1363{ 1364 struct sljit_jump *jump = NULL; 1365 sljit_si src_r; 1366 1367 CHECK_ERROR(); 1368 check_sljit_emit_ijump(compiler, type, src, srcw); 1369 ADJUST_LOCAL_OFFSET(src, srcw); 1370 1371 if (FAST_IS_REG(src)) 1372 src_r = src; 1373 else if (src & SLJIT_IMM) { 1374 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); 1375 FAIL_IF(!jump); 1376 set_jump(jump, compiler, JUMP_ADDR); 1377 jump->u.target = srcw; 1378 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) 1379 jump->flags |= IS_MOVABLE; 1380 if (type >= SLJIT_FAST_CALL) 1381 jump->flags |= IS_CALL; 1382 1383 FAIL_IF(emit_const(compiler, TMP_REG2, 0)); 1384 src_r = TMP_REG2; 1385 } 1386 else { 1387 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw)); 1388 src_r = TMP_REG2; 1389 } 1390 1391 FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(src_r) | IMM(0), UNMOVABLE_INS)); 1392 if (jump) 1393 jump->addr = compiler->size; 1394 return push_inst(compiler, NOP, UNMOVABLE_INS); 1395} 1396 1397SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_si op, 1398 sljit_si dst, sljit_sw dstw, 1399 sljit_si src, sljit_sw srcw, 1400 sljit_si type) 1401{ 1402 sljit_si reg, flags = (GET_FLAGS(op) ? SET_FLAGS : 0); 1403 1404 CHECK_ERROR(); 1405 check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type); 1406 ADJUST_LOCAL_OFFSET(dst, dstw); 1407 1408 if (dst == SLJIT_UNUSED) 1409 return SLJIT_SUCCESS; 1410 1411#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 1412 op = GET_OPCODE(op); 1413 reg = (op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2; 1414 1415 compiler->cache_arg = 0; 1416 compiler->cache_argw = 0; 1417 if (op >= SLJIT_ADD && (src & SLJIT_MEM)) { 1418 ADJUST_LOCAL_OFFSET(src, srcw); 1419 FAIL_IF(emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw, dst, dstw)); 1420 src = TMP_REG1; 1421 srcw = 0; 1422 } 1423 1424 if (type < SLJIT_C_FLOAT_EQUAL) 1425 FAIL_IF(push_inst(compiler, BICC | get_cc(type) | 3, UNMOVABLE_INS)); 1426 else 1427 FAIL_IF(push_inst(compiler, FBFCC | get_cc(type) | 3, UNMOVABLE_INS)); 1428 1429 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(1), UNMOVABLE_INS)); 1430 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(0), UNMOVABLE_INS)); 1431 1432 if (op >= SLJIT_ADD) 1433 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP | ALT_KEEP_CACHE, dst, dstw, src, srcw, TMP_REG2, 0); 1434 1435 return (reg == TMP_REG2) ? emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw) : SLJIT_SUCCESS; 1436#else 1437#error "Implementation required" 1438#endif 1439} 1440 1441SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw, sljit_sw init_value) 1442{ 1443 sljit_si reg; 1444 struct sljit_const *const_; 1445 1446 CHECK_ERROR_PTR(); 1447 check_sljit_emit_const(compiler, dst, dstw, init_value); 1448 ADJUST_LOCAL_OFFSET(dst, dstw); 1449 1450 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const)); 1451 PTR_FAIL_IF(!const_); 1452 set_const(const_, compiler); 1453 1454 reg = SLOW_IS_REG(dst) ? dst : TMP_REG2; 1455 1456 PTR_FAIL_IF(emit_const(compiler, reg, init_value)); 1457 1458 if (dst & SLJIT_MEM) 1459 PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw)); 1460 return const_; 1461} 1462