ext/pcre/pcrelib/sljit/sljitNativeSPARC

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This source file includes following definitions.
sljit_get_platform_name
sparc_cache_flush
push_inst
detect_jump_type
sljit_generate_code
sljit_emit_enter
sljit_set_context
sljit_emit_return
getput_arg_fast
can_cache
getput_arg
emit_op_mem
emit_op_mem2
emit_op
sljit_emit_op0
sljit_emit_op1
sljit_emit_op2
sljit_get_register_index
sljit_get_float_register_index
sljit_emit_op_custom
sljit_is_fpu_available
sljit_emit_fop1_convw_fromd
sljit_emit_fop1_convd_fromw
sljit_emit_fop1_cmp
sljit_emit_fop1
sljit_emit_fop2
sljit_emit_fast_enter
sljit_emit_fast_return
sljit_emit_label
get_cc
sljit_emit_jump
sljit_emit_ijump
sljit_emit_op_flags
sljit_emit_const
   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 
  27 SLJIT_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 */
  34 typedef sljit_ui sljit_ins;
  35 
  36 static 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 
  94 static 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. */
 184 static 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 
 198 static 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 
 271 SLJIT_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_PTR(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 
 421 SLJIT_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(check_sljit_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size));
 427         set_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size);
 428 
 429         local_size = (local_size + SLJIT_LOCALS_OFFSET + 7) & ~0x7;
 430         compiler->local_size = local_size;
 431 
 432         if (local_size <= SIMM_MAX) {
 433                 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | IMM(-local_size), UNMOVABLE_INS));
 434         }
 435         else {
 436                 FAIL_IF(load_immediate(compiler, TMP_REG1, -local_size));
 437                 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | S2(TMP_REG1), UNMOVABLE_INS));
 438         }
 439 
 440         /* Arguments are in their appropriate registers. */
 441 
 442         return SLJIT_SUCCESS;
 443 }
 444 
 445 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_set_context(struct sljit_compiler *compiler,
 446         sljit_si options, sljit_si args, sljit_si scratches, sljit_si saveds,
 447         sljit_si fscratches, sljit_si fsaveds, sljit_si local_size)
 448 {
 449         CHECK_ERROR();
 450         CHECK(check_sljit_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size));
 451         set_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size);
 452 
 453         compiler->local_size = (local_size + SLJIT_LOCALS_OFFSET + 7) & ~0x7;
 454         return SLJIT_SUCCESS;
 455 }
 456 
 457 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_return(struct sljit_compiler *compiler, sljit_si op, sljit_si src, sljit_sw srcw)
 458 {
 459         CHECK_ERROR();
 460         CHECK(check_sljit_emit_return(compiler, op, src, srcw));
 461 
 462         if (op != SLJIT_MOV || !FAST_IS_REG(src)) {
 463                 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
 464                 src = SLJIT_R0;
 465         }
 466 
 467         FAIL_IF(push_inst(compiler, JMPL | D(0) | S1A(31) | IMM(8), UNMOVABLE_INS));
 468         return push_inst(compiler, RESTORE | D(SLJIT_R0) | S1(src) | S2(0), UNMOVABLE_INS);
 469 }
 470 
 471 /* --------------------------------------------------------------------- */
 472 /*  Operators                                                            */
 473 /* --------------------------------------------------------------------- */
 474 
 475 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
 476 #define ARCH_32_64(a, b)        a
 477 #else
 478 #define ARCH_32_64(a, b)        b
 479 #endif
 480 
 481 static SLJIT_CONST sljit_ins data_transfer_insts[16 + 4] = {
 482 /* u w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
 483 /* u w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
 484 /* u b s */ OPC1(3) | OPC3(0x05) /* stb */,
 485 /* u b l */ OPC1(3) | OPC3(0x01) /* ldub */,
 486 /* u h s */ OPC1(3) | OPC3(0x06) /* sth */,
 487 /* u h l */ OPC1(3) | OPC3(0x02) /* lduh */,
 488 /* u i s */ OPC1(3) | OPC3(0x04) /* stw */,
 489 /* u i l */ OPC1(3) | OPC3(0x00) /* lduw */,
 490 
 491 /* s w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
 492 /* s w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
 493 /* s b s */ OPC1(3) | OPC3(0x05) /* stb */,
 494 /* s b l */ OPC1(3) | OPC3(0x09) /* ldsb */,
 495 /* s h s */ OPC1(3) | OPC3(0x06) /* sth */,
 496 /* s h l */ OPC1(3) | OPC3(0x0a) /* ldsh */,
 497 /* s i s */ OPC1(3) | OPC3(0x04) /* stw */,
 498 /* s i l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x08) /* ldsw */),
 499 
 500 /* d   s */ OPC1(3) | OPC3(0x27),
 501 /* d   l */ OPC1(3) | OPC3(0x23),
 502 /* s   s */ OPC1(3) | OPC3(0x24),
 503 /* s   l */ OPC1(3) | OPC3(0x20),
 504 };
 505 
 506 #undef ARCH_32_64
 507 
 508 /* Can perform an operation using at most 1 instruction. */
 509 static sljit_si getput_arg_fast(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw)
 510 {
 511         SLJIT_ASSERT(arg & SLJIT_MEM);
 512 
 513         if (!(flags & WRITE_BACK) || !(arg & REG_MASK)) {
 514                 if ((!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN)
 515                                 || ((arg & OFFS_REG_MASK) && (argw & 0x3) == 0)) {
 516                         /* Works for both absoulte and relative addresses (immediate case). */
 517                         if (SLJIT_UNLIKELY(flags & ARG_TEST))
 518                                 return 1;
 519                         FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK]
 520                                 | ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg))
 521                                 | S1(arg & REG_MASK) | ((arg & OFFS_REG_MASK) ? S2(OFFS_REG(arg)) : IMM(argw)),
 522                                 ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS));
 523                         return -1;
 524                 }
 525         }
 526         return 0;
 527 }
 528 
 529 /* See getput_arg below.
 530    Note: can_cache is called only for binary operators. Those
 531    operators always uses word arguments without write back. */
 532 static sljit_si can_cache(sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw)
 533 {
 534         SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM));
 535 
 536         /* Simple operation except for updates. */
 537         if (arg & OFFS_REG_MASK) {
 538                 argw &= 0x3;
 539                 SLJIT_ASSERT(argw);
 540                 next_argw &= 0x3;
 541                 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == next_argw)
 542                         return 1;
 543                 return 0;
 544         }
 545 
 546         if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN))
 547                 return 1;
 548         return 0;
 549 }
 550 
 551 /* Emit the necessary instructions. See can_cache above. */
 552 static 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)
 553 {
 554         sljit_si base, arg2, delay_slot;
 555         sljit_ins dest;
 556 
 557         SLJIT_ASSERT(arg & SLJIT_MEM);
 558         if (!(next_arg & SLJIT_MEM)) {
 559                 next_arg = 0;
 560                 next_argw = 0;
 561         }
 562 
 563         base = arg & REG_MASK;
 564         if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
 565                 argw &= 0x3;
 566                 SLJIT_ASSERT(argw != 0);
 567 
 568                 /* Using the cache. */
 569                 if (((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) && (argw == compiler->cache_argw))
 570                         arg2 = TMP_REG3;
 571                 else {
 572                         if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == (next_argw & 0x3)) {
 573                                 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK);
 574                                 compiler->cache_argw = argw;
 575                                 arg2 = TMP_REG3;
 576                         }
 577                         else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base && reg != OFFS_REG(arg))
 578                                 arg2 = reg;
 579                         else /* It must be a mov operation, so tmp1 must be free to use. */
 580                                 arg2 = TMP_REG1;
 581                         FAIL_IF(push_inst(compiler, SLL_W | D(arg2) | S1(OFFS_REG(arg)) | IMM_ARG | argw, DR(arg2)));
 582                 }
 583         }
 584         else {
 585                 /* Using the cache. */
 586                 if ((compiler->cache_arg == SLJIT_MEM) && (argw - compiler->cache_argw) <= SIMM_MAX && (argw - compiler->cache_argw) >= SIMM_MIN) {
 587                         if (argw != compiler->cache_argw) {
 588                                 FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | S1(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
 589                                 compiler->cache_argw = argw;
 590                         }
 591                         arg2 = TMP_REG3;
 592                 } else {
 593                         if ((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN) {
 594                                 compiler->cache_arg = SLJIT_MEM;
 595                                 compiler->cache_argw = argw;
 596                                 arg2 = TMP_REG3;
 597                         }
 598                         else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base)
 599                                 arg2 = reg;
 600                         else /* It must be a mov operation, so tmp1 must be free to use. */
 601                                 arg2 = TMP_REG1;
 602                         FAIL_IF(load_immediate(compiler, arg2, argw));
 603                 }
 604         }
 605 
 606         dest = ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg));
 607         delay_slot = ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS;
 608         if (!base)
 609                 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(arg2) | IMM(0), delay_slot);
 610         if (!(flags & WRITE_BACK))
 611                 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot);
 612         FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot));
 613         return push_inst(compiler, ADD | D(base) | S1(base) | S2(arg2), DR(base));
 614 }
 615 
 616 static SLJIT_INLINE sljit_si emit_op_mem(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw)
 617 {
 618         if (getput_arg_fast(compiler, flags, reg, arg, argw))
 619                 return compiler->error;
 620         compiler->cache_arg = 0;
 621         compiler->cache_argw = 0;
 622         return getput_arg(compiler, flags, reg, arg, argw, 0, 0);
 623 }
 624 
 625 static SLJIT_INLINE sljit_si emit_op_mem2(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg1, sljit_sw arg1w, sljit_si arg2, sljit_sw arg2w)
 626 {
 627         if (getput_arg_fast(compiler, flags, reg, arg1, arg1w))
 628                 return compiler->error;
 629         return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w);
 630 }
 631 
 632 static sljit_si emit_op(struct sljit_compiler *compiler, sljit_si op, sljit_si flags,
 633         sljit_si dst, sljit_sw dstw,
 634         sljit_si src1, sljit_sw src1w,
 635         sljit_si src2, sljit_sw src2w)
 636 {
 637         /* arg1 goes to TMP_REG1 or src reg
 638            arg2 goes to TMP_REG2, imm or src reg
 639            TMP_REG3 can be used for caching
 640            result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
 641         sljit_si dst_r = TMP_REG2;
 642         sljit_si src1_r;
 643         sljit_sw src2_r = 0;
 644         sljit_si sugg_src2_r = TMP_REG2;
 645 
 646         if (!(flags & ALT_KEEP_CACHE)) {
 647                 compiler->cache_arg = 0;
 648                 compiler->cache_argw = 0;
 649         }
 650 
 651         if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) {
 652                 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM))
 653                         return SLJIT_SUCCESS;
 654         }
 655         else if (FAST_IS_REG(dst)) {
 656                 dst_r = dst;
 657                 flags |= REG_DEST;
 658                 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
 659                         sugg_src2_r = dst_r;
 660         }
 661         else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, TMP_REG1, dst, dstw))
 662                 flags |= SLOW_DEST;
 663 
 664         if (flags & IMM_OP) {
 665                 if ((src2 & SLJIT_IMM) && src2w) {
 666                         if (src2w <= SIMM_MAX && src2w >= SIMM_MIN) {
 667                                 flags |= SRC2_IMM;
 668                                 src2_r = src2w;
 669                         }
 670                 }
 671                 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) {
 672                         if (src1w <= SIMM_MAX && src1w >= SIMM_MIN) {
 673                                 flags |= SRC2_IMM;
 674                                 src2_r = src1w;
 675 
 676                                 /* And swap arguments. */
 677                                 src1 = src2;
 678                                 src1w = src2w;
 679                                 src2 = SLJIT_IMM;
 680                                 /* src2w = src2_r unneeded. */
 681                         }
 682                 }
 683         }
 684 
 685         /* Source 1. */
 686         if (FAST_IS_REG(src1))
 687                 src1_r = src1;
 688         else if (src1 & SLJIT_IMM) {
 689                 if (src1w) {
 690                         FAIL_IF(load_immediate(compiler, TMP_REG1, src1w));
 691                         src1_r = TMP_REG1;
 692                 }
 693                 else
 694                         src1_r = 0;
 695         }
 696         else {
 697                 if (getput_arg_fast(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w))
 698                         FAIL_IF(compiler->error);
 699                 else
 700                         flags |= SLOW_SRC1;
 701                 src1_r = TMP_REG1;
 702         }
 703 
 704         /* Source 2. */
 705         if (FAST_IS_REG(src2)) {
 706                 src2_r = src2;
 707                 flags |= REG2_SOURCE;
 708                 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
 709                         dst_r = src2_r;
 710         }
 711         else if (src2 & SLJIT_IMM) {
 712                 if (!(flags & SRC2_IMM)) {
 713                         if (src2w) {
 714                                 FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w));
 715                                 src2_r = sugg_src2_r;
 716                         }
 717                         else {
 718                                 src2_r = 0;
 719                                 if ((op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) && (dst & SLJIT_MEM))
 720                                         dst_r = 0;
 721                         }
 722                 }
 723         }
 724         else {
 725                 if (getput_arg_fast(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w))
 726                         FAIL_IF(compiler->error);
 727                 else
 728                         flags |= SLOW_SRC2;
 729                 src2_r = sugg_src2_r;
 730         }
 731 
 732         if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
 733                 SLJIT_ASSERT(src2_r == TMP_REG2);
 734                 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
 735                         FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w));
 736                         FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
 737                 }
 738                 else {
 739                         FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
 740                         FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
 741                 }
 742         }
 743         else if (flags & SLOW_SRC1)
 744                 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
 745         else if (flags & SLOW_SRC2)
 746                 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
 747 
 748         FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
 749 
 750         if (dst & SLJIT_MEM) {
 751                 if (!(flags & SLOW_DEST)) {
 752                         getput_arg_fast(compiler, flags, dst_r, dst, dstw);
 753                         return compiler->error;
 754                 }
 755                 return getput_arg(compiler, flags, dst_r, dst, dstw, 0, 0);
 756         }
 757 
 758         return SLJIT_SUCCESS;
 759 }
 760 
 761 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op0(struct sljit_compiler *compiler, sljit_si op)
 762 {
 763         CHECK_ERROR();
 764         CHECK(check_sljit_emit_op0(compiler, op));
 765 
 766         op = GET_OPCODE(op);
 767         switch (op) {
 768         case SLJIT_BREAKPOINT:
 769                 return push_inst(compiler, TA, UNMOVABLE_INS);
 770         case SLJIT_NOP:
 771                 return push_inst(compiler, NOP, UNMOVABLE_INS);
 772         case SLJIT_LUMUL:
 773         case SLJIT_LSMUL:
 774 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
 775                 FAIL_IF(push_inst(compiler, (op == SLJIT_LUMUL ? UMUL : SMUL) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
 776                 return push_inst(compiler, RDY | D(SLJIT_R1), DR(SLJIT_R1));
 777 #else
 778 #error "Implementation required"
 779 #endif
 780         case SLJIT_UDIVMOD:
 781         case SLJIT_SDIVMOD:
 782         case SLJIT_UDIVI:
 783         case SLJIT_SDIVI:
 784                 SLJIT_COMPILE_ASSERT((SLJIT_UDIVMOD & 0x2) == 0 && SLJIT_UDIVI - 0x2 == SLJIT_UDIVMOD, bad_div_opcode_assignments);
 785 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
 786                 if ((op | 0x2) == SLJIT_UDIVI)
 787                         FAIL_IF(push_inst(compiler, WRY | S1(0), MOVABLE_INS));
 788                 else {
 789                         FAIL_IF(push_inst(compiler, SRA | D(TMP_REG1) | S1(SLJIT_R0) | IMM(31), DR(TMP_REG1)));
 790                         FAIL_IF(push_inst(compiler, WRY | S1(TMP_REG1), MOVABLE_INS));
 791                 }
 792                 if (op <= SLJIT_SDIVMOD)
 793                         FAIL_IF(push_inst(compiler, OR | D(TMP_REG2) | S1(0) | S2(SLJIT_R0), DR(TMP_REG2)));
 794                 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_UDIVI ? UDIV : SDIV) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
 795                 if (op >= SLJIT_UDIVI)
 796                         return SLJIT_SUCCESS;
 797                 FAIL_IF(push_inst(compiler, SMUL | D(SLJIT_R1) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R1)));
 798                 return push_inst(compiler, SUB | D(SLJIT_R1) | S1(TMP_REG2) | S2(SLJIT_R1), DR(SLJIT_R1));
 799 #else
 800 #error "Implementation required"
 801 #endif
 802         }
 803 
 804         return SLJIT_SUCCESS;
 805 }
 806 
 807 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op1(struct sljit_compiler *compiler, sljit_si op,
 808         sljit_si dst, sljit_sw dstw,
 809         sljit_si src, sljit_sw srcw)
 810 {
 811         sljit_si flags = GET_FLAGS(op) ? SET_FLAGS : 0;
 812 
 813         CHECK_ERROR();
 814         CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
 815         ADJUST_LOCAL_OFFSET(dst, dstw);
 816         ADJUST_LOCAL_OFFSET(src, srcw);
 817 
 818         op = GET_OPCODE(op);
 819         switch (op) {
 820         case SLJIT_MOV:
 821         case SLJIT_MOV_P:
 822                 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
 823 
 824         case SLJIT_MOV_UI:
 825                 return emit_op(compiler, SLJIT_MOV_UI, flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
 826 
 827         case SLJIT_MOV_SI:
 828                 return emit_op(compiler, SLJIT_MOV_SI, flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
 829 
 830         case SLJIT_MOV_UB:
 831                 return emit_op(compiler, SLJIT_MOV_UB, flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw);
 832 
 833         case SLJIT_MOV_SB:
 834                 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);
 835 
 836         case SLJIT_MOV_UH:
 837                 return emit_op(compiler, SLJIT_MOV_UH, flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw);
 838 
 839         case SLJIT_MOV_SH:
 840                 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);
 841 
 842         case SLJIT_MOVU:
 843         case SLJIT_MOVU_P:
 844                 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
 845 
 846         case SLJIT_MOVU_UI:
 847                 return emit_op(compiler, SLJIT_MOV_UI, flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
 848 
 849         case SLJIT_MOVU_SI:
 850                 return emit_op(compiler, SLJIT_MOV_SI, flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
 851 
 852         case SLJIT_MOVU_UB:
 853                 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);
 854 
 855         case SLJIT_MOVU_SB:
 856                 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);
 857 
 858         case SLJIT_MOVU_UH:
 859                 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);
 860 
 861         case SLJIT_MOVU_SH:
 862                 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);
 863 
 864         case SLJIT_NOT:
 865         case SLJIT_CLZ:
 866                 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
 867 
 868         case SLJIT_NEG:
 869                 return emit_op(compiler, SLJIT_SUB, flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
 870         }
 871 
 872         return SLJIT_SUCCESS;
 873 }
 874 
 875 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op2(struct sljit_compiler *compiler, sljit_si op,
 876         sljit_si dst, sljit_sw dstw,
 877         sljit_si src1, sljit_sw src1w,
 878         sljit_si src2, sljit_sw src2w)
 879 {
 880         sljit_si flags = GET_FLAGS(op) ? SET_FLAGS : 0;
 881 
 882         CHECK_ERROR();
 883         CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
 884         ADJUST_LOCAL_OFFSET(dst, dstw);
 885         ADJUST_LOCAL_OFFSET(src1, src1w);
 886         ADJUST_LOCAL_OFFSET(src2, src2w);
 887 
 888         op = GET_OPCODE(op);
 889         switch (op) {
 890         case SLJIT_ADD:
 891         case SLJIT_ADDC:
 892         case SLJIT_MUL:
 893         case SLJIT_AND:
 894         case SLJIT_OR:
 895         case SLJIT_XOR:
 896                 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
 897 
 898         case SLJIT_SUB:
 899         case SLJIT_SUBC:
 900                 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
 901 
 902         case SLJIT_SHL:
 903         case SLJIT_LSHR:
 904         case SLJIT_ASHR:
 905 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
 906                 if (src2 & SLJIT_IMM)
 907                         src2w &= 0x1f;
 908 #else
 909                 SLJIT_ASSERT_STOP();
 910 #endif
 911                 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
 912         }
 913 
 914         return SLJIT_SUCCESS;
 915 }
 916 
 917 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_register_index(sljit_si reg)
 918 {
 919         CHECK_REG_INDEX(check_sljit_get_register_index(reg));
 920         return reg_map[reg];
 921 }
 922 
 923 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_float_register_index(sljit_si reg)
 924 {
 925         CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
 926         return reg << 1;
 927 }
 928 
 929 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_custom(struct sljit_compiler *compiler,
 930         void *instruction, sljit_si size)
 931 {
 932         CHECK_ERROR();
 933         CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
 934 
 935         return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
 936 }
 937 
 938 /* --------------------------------------------------------------------- */
 939 /*  Floating point operators                                             */
 940 /* --------------------------------------------------------------------- */
 941 
 942 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_is_fpu_available(void)
 943 {
 944 #ifdef SLJIT_IS_FPU_AVAILABLE
 945         return SLJIT_IS_FPU_AVAILABLE;
 946 #else
 947         /* Available by default. */
 948         return 1;
 949 #endif
 950 }
 951 
 952 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_SINGLE_OP) >> 7))
 953 #define SELECT_FOP(op, single, double) ((op & SLJIT_SINGLE_OP) ? single : double)
 954 #define FLOAT_TMP_MEM_OFFSET (22 * sizeof(sljit_sw))
 955 
 956 static SLJIT_INLINE sljit_si sljit_emit_fop1_convw_fromd(struct sljit_compiler *compiler, sljit_si op,
 957         sljit_si dst, sljit_sw dstw,
 958         sljit_si src, sljit_sw srcw)
 959 {
 960         if (src & SLJIT_MEM) {
 961                 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
 962                 src = TMP_FREG1;
 963         }
 964         else
 965                 src <<= 1;
 966 
 967         FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOI, FDTOI) | DA(TMP_FREG1) | S2A(src), MOVABLE_INS));
 968 
 969         if (dst == SLJIT_UNUSED)
 970                 return SLJIT_SUCCESS;
 971 
 972         if (FAST_IS_REG(dst)) {
 973                 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));
 974                 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);
 975         }
 976 
 977         /* Store the integer value from a VFP register. */
 978         return emit_op_mem2(compiler, SINGLE_DATA, TMP_FREG1, dst, dstw, 0, 0);
 979 }
 980 
 981 static SLJIT_INLINE sljit_si sljit_emit_fop1_convd_fromw(struct sljit_compiler *compiler, sljit_si op,
 982         sljit_si dst, sljit_sw dstw,
 983         sljit_si src, sljit_sw srcw)
 984 {
 985         sljit_si dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1;
 986 
 987         if (src & SLJIT_IMM) {
 988 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
 989                 if (GET_OPCODE(op) == SLJIT_CONVD_FROMI)
 990                         srcw = (sljit_si)srcw;
 991 #endif
 992                 FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
 993                 src = TMP_REG1;
 994                 srcw = 0;
 995         }
 996 
 997         if (FAST_IS_REG(src)) {
 998                 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));
 999                 src = SLJIT_MEM1(SLJIT_SP);
1000                 srcw = FLOAT_TMP_MEM_OFFSET;
1001         }
1002 
1003         FAIL_IF(emit_op_mem2(compiler, SINGLE_DATA | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
1004         FAIL_IF(push_inst(compiler, SELECT_FOP(op, FITOS, FITOD) | DA(dst_r) | S2A(TMP_FREG1), MOVABLE_INS));
1005 
1006         if (dst & SLJIT_MEM)
1007                 return emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, 0, 0);
1008         return SLJIT_SUCCESS;
1009 }
1010 
1011 static SLJIT_INLINE sljit_si sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_si op,
1012         sljit_si src1, sljit_sw src1w,
1013         sljit_si src2, sljit_sw src2w)
1014 {
1015         if (src1 & SLJIT_MEM) {
1016                 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1017                 src1 = TMP_FREG1;
1018         }
1019         else
1020                 src1 <<= 1;
1021 
1022         if (src2 & SLJIT_MEM) {
1023                 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0));
1024                 src2 = TMP_FREG2;
1025         }
1026         else
1027                 src2 <<= 1;
1028 
1029         return push_inst(compiler, SELECT_FOP(op, FCMPS, FCMPD) | S1A(src1) | S2A(src2), FCC_IS_SET | MOVABLE_INS);
1030 }
1031 
1032 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop1(struct sljit_compiler *compiler, sljit_si op,
1033         sljit_si dst, sljit_sw dstw,
1034         sljit_si src, sljit_sw srcw)
1035 {
1036         sljit_si dst_r;
1037 
1038         CHECK_ERROR();
1039         compiler->cache_arg = 0;
1040         compiler->cache_argw = 0;
1041 
1042         SLJIT_COMPILE_ASSERT((SLJIT_SINGLE_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error);
1043         SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
1044 
1045         if (GET_OPCODE(op) == SLJIT_CONVD_FROMS)
1046                 op ^= SLJIT_SINGLE_OP;
1047 
1048         dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1;
1049 
1050         if (src & SLJIT_MEM) {
1051                 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, dst, dstw));
1052                 src = dst_r;
1053         }
1054         else
1055                 src <<= 1;
1056 
1057         switch (GET_OPCODE(op)) {
1058         case SLJIT_DMOV:
1059                 if (src != dst_r) {
1060                         if (dst_r != TMP_FREG1) {
1061                                 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r) | S2A(src), MOVABLE_INS));
1062                                 if (!(op & SLJIT_SINGLE_OP))
1063                                         FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1064                         }
1065                         else
1066                                 dst_r = src;
1067                 }
1068                 break;
1069         case SLJIT_DNEG:
1070                 FAIL_IF(push_inst(compiler, FNEGS | DA(dst_r) | S2A(src), MOVABLE_INS));
1071                 if (dst_r != src && !(op & SLJIT_SINGLE_OP))
1072                         FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1073                 break;
1074         case SLJIT_DABS:
1075                 FAIL_IF(push_inst(compiler, FABSS | DA(dst_r) | S2A(src), MOVABLE_INS));
1076                 if (dst_r != src && !(op & SLJIT_SINGLE_OP))
1077                         FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1078                 break;
1079         case SLJIT_CONVD_FROMS:
1080                 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOD, FDTOS) | DA(dst_r) | S2A(src), MOVABLE_INS));
1081                 op ^= SLJIT_SINGLE_OP;
1082                 break;
1083         }
1084 
1085         if (dst & SLJIT_MEM)
1086                 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), dst_r, dst, dstw, 0, 0));
1087         return SLJIT_SUCCESS;
1088 }
1089 
1090 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop2(struct sljit_compiler *compiler, sljit_si op,
1091         sljit_si dst, sljit_sw dstw,
1092         sljit_si src1, sljit_sw src1w,
1093         sljit_si src2, sljit_sw src2w)
1094 {
1095         sljit_si dst_r, flags = 0;
1096 
1097         CHECK_ERROR();
1098         CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1099         ADJUST_LOCAL_OFFSET(dst, dstw);
1100         ADJUST_LOCAL_OFFSET(src1, src1w);
1101         ADJUST_LOCAL_OFFSET(src2, src2w);
1102 
1103         compiler->cache_arg = 0;
1104         compiler->cache_argw = 0;
1105 
1106         dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG2;
1107 
1108         if (src1 & SLJIT_MEM) {
1109                 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) {
1110                         FAIL_IF(compiler->error);
1111                         src1 = TMP_FREG1;
1112                 } else
1113                         flags |= SLOW_SRC1;
1114         }
1115         else
1116                 src1 <<= 1;
1117 
1118         if (src2 & SLJIT_MEM) {
1119                 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) {
1120                         FAIL_IF(compiler->error);
1121                         src2 = TMP_FREG2;
1122                 } else
1123                         flags |= SLOW_SRC2;
1124         }
1125         else
1126                 src2 <<= 1;
1127 
1128         if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1129                 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1130                         FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w));
1131                         FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1132                 }
1133                 else {
1134                         FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1135                         FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1136                 }
1137         }
1138         else if (flags & SLOW_SRC1)
1139                 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1140         else if (flags & SLOW_SRC2)
1141                 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1142 
1143         if (flags & SLOW_SRC1)
1144                 src1 = TMP_FREG1;
1145         if (flags & SLOW_SRC2)
1146                 src2 = TMP_FREG2;
1147 
1148         switch (GET_OPCODE(op)) {
1149         case SLJIT_DADD:
1150                 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FADDS, FADDD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1151                 break;
1152 
1153         case SLJIT_DSUB:
1154                 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSUBS, FSUBD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1155                 break;
1156 
1157         case SLJIT_DMUL:
1158                 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FMULS, FMULD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1159                 break;
1160 
1161         case SLJIT_DDIV:
1162                 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FDIVS, FDIVD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1163                 break;
1164         }
1165 
1166         if (dst_r == TMP_FREG2)
1167                 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0));
1168 
1169         return SLJIT_SUCCESS;
1170 }
1171 
1172 #undef FLOAT_DATA
1173 #undef SELECT_FOP
1174 
1175 /* --------------------------------------------------------------------- */
1176 /*  Other instructions                                                   */
1177 /* --------------------------------------------------------------------- */
1178 
1179 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw)
1180 {
1181         CHECK_ERROR();
1182         CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
1183         ADJUST_LOCAL_OFFSET(dst, dstw);
1184 
1185         /* For UNUSED dst. Uncommon, but possible. */
1186         if (dst == SLJIT_UNUSED)
1187                 return SLJIT_SUCCESS;
1188 
1189         if (FAST_IS_REG(dst))
1190                 return push_inst(compiler, OR | D(dst) | S1(0) | S2(TMP_LINK), DR(dst));
1191 
1192         /* Memory. */
1193         return emit_op_mem(compiler, WORD_DATA, TMP_LINK, dst, dstw);
1194 }
1195 
1196 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_si src, sljit_sw srcw)
1197 {
1198         CHECK_ERROR();
1199         CHECK(check_sljit_emit_fast_return(compiler, src, srcw));
1200         ADJUST_LOCAL_OFFSET(src, srcw);
1201 
1202         if (FAST_IS_REG(src))
1203                 FAIL_IF(push_inst(compiler, OR | D(TMP_LINK) | S1(0) | S2(src), DR(TMP_LINK)));
1204         else if (src & SLJIT_MEM)
1205                 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_LINK, src, srcw));
1206         else if (src & SLJIT_IMM)
1207                 FAIL_IF(load_immediate(compiler, TMP_LINK, srcw));
1208 
1209         FAIL_IF(push_inst(compiler, JMPL | D(0) | S1(TMP_LINK) | IMM(8), UNMOVABLE_INS));
1210         return push_inst(compiler, NOP, UNMOVABLE_INS);
1211 }
1212 
1213 /* --------------------------------------------------------------------- */
1214 /*  Conditional instructions                                             */
1215 /* --------------------------------------------------------------------- */
1216 
1217 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1218 {
1219         struct sljit_label *label;
1220 
1221         CHECK_ERROR_PTR();
1222         CHECK_PTR(check_sljit_emit_label(compiler));
1223 
1224         if (compiler->last_label && compiler->last_label->size == compiler->size)
1225                 return compiler->last_label;
1226 
1227         label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1228         PTR_FAIL_IF(!label);
1229         set_label(label, compiler);
1230         compiler->delay_slot = UNMOVABLE_INS;
1231         return label;
1232 }
1233 
1234 static sljit_ins get_cc(sljit_si type)
1235 {
1236         switch (type) {
1237         case SLJIT_EQUAL:
1238         case SLJIT_MUL_NOT_OVERFLOW:
1239         case SLJIT_D_NOT_EQUAL: /* Unordered. */
1240                 return DA(0x1);
1241 
1242         case SLJIT_NOT_EQUAL:
1243         case SLJIT_MUL_OVERFLOW:
1244         case SLJIT_D_EQUAL:
1245                 return DA(0x9);
1246 
1247         case SLJIT_LESS:
1248         case SLJIT_D_GREATER: /* Unordered. */
1249                 return DA(0x5);
1250 
1251         case SLJIT_GREATER_EQUAL:
1252         case SLJIT_D_LESS_EQUAL:
1253                 return DA(0xd);
1254 
1255         case SLJIT_GREATER:
1256         case SLJIT_D_GREATER_EQUAL: /* Unordered. */
1257                 return DA(0xc);
1258 
1259         case SLJIT_LESS_EQUAL:
1260         case SLJIT_D_LESS:
1261                 return DA(0x4);
1262 
1263         case SLJIT_SIG_LESS:
1264                 return DA(0x3);
1265 
1266         case SLJIT_SIG_GREATER_EQUAL:
1267                 return DA(0xb);
1268 
1269         case SLJIT_SIG_GREATER:
1270                 return DA(0xa);
1271 
1272         case SLJIT_SIG_LESS_EQUAL:
1273                 return DA(0x2);
1274 
1275         case SLJIT_OVERFLOW:
1276         case SLJIT_D_UNORDERED:
1277                 return DA(0x7);
1278 
1279         case SLJIT_NOT_OVERFLOW:
1280         case SLJIT_D_ORDERED:
1281                 return DA(0xf);
1282 
1283         default:
1284                 SLJIT_ASSERT_STOP();
1285                 return DA(0x8);
1286         }
1287 }
1288 
1289 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_si type)
1290 {
1291         struct sljit_jump *jump;
1292 
1293         CHECK_ERROR_PTR();
1294         CHECK_PTR(check_sljit_emit_jump(compiler, type));
1295 
1296         jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1297         PTR_FAIL_IF(!jump);
1298         set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1299         type &= 0xff;
1300 
1301         if (type < SLJIT_D_EQUAL) {
1302                 jump->flags |= IS_COND;
1303                 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & ICC_IS_SET))
1304                         jump->flags |= IS_MOVABLE;
1305 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1306                 PTR_FAIL_IF(push_inst(compiler, BICC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1307 #else
1308 #error "Implementation required"
1309 #endif
1310         }
1311         else if (type < SLJIT_JUMP) {
1312                 jump->flags |= IS_COND;
1313                 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & FCC_IS_SET))
1314                         jump->flags |= IS_MOVABLE;
1315 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1316                 PTR_FAIL_IF(push_inst(compiler, FBFCC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1317 #else
1318 #error "Implementation required"
1319 #endif
1320         } else {
1321                 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1322                         jump->flags |= IS_MOVABLE;
1323                 if (type >= SLJIT_FAST_CALL)
1324                         jump->flags |= IS_CALL;
1325         }
1326 
1327         PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1328         PTR_FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(TMP_REG2) | IMM(0), UNMOVABLE_INS));
1329         jump->addr = compiler->size;
1330         PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1331 
1332         return jump;
1333 }
1334 
1335 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_ijump(struct sljit_compiler *compiler, sljit_si type, sljit_si src, sljit_sw srcw)
1336 {
1337         struct sljit_jump *jump = NULL;
1338         sljit_si src_r;
1339 
1340         CHECK_ERROR();
1341         CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
1342         ADJUST_LOCAL_OFFSET(src, srcw);
1343 
1344         if (FAST_IS_REG(src))
1345                 src_r = src;
1346         else if (src & SLJIT_IMM) {
1347                 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1348                 FAIL_IF(!jump);
1349                 set_jump(jump, compiler, JUMP_ADDR);
1350                 jump->u.target = srcw;
1351                 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1352                         jump->flags |= IS_MOVABLE;
1353                 if (type >= SLJIT_FAST_CALL)
1354                         jump->flags |= IS_CALL;
1355 
1356                 FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1357                 src_r = TMP_REG2;
1358         }
1359         else {
1360                 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw));
1361                 src_r = TMP_REG2;
1362         }
1363 
1364         FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(src_r) | IMM(0), UNMOVABLE_INS));
1365         if (jump)
1366                 jump->addr = compiler->size;
1367         return push_inst(compiler, NOP, UNMOVABLE_INS);
1368 }
1369 
1370 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_si op,
1371         sljit_si dst, sljit_sw dstw,
1372         sljit_si src, sljit_sw srcw,
1373         sljit_si type)
1374 {
1375         sljit_si reg, flags = (GET_FLAGS(op) ? SET_FLAGS : 0);
1376 
1377         CHECK_ERROR();
1378         CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type));
1379         ADJUST_LOCAL_OFFSET(dst, dstw);
1380 
1381         if (dst == SLJIT_UNUSED)
1382                 return SLJIT_SUCCESS;
1383 
1384 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1385         op = GET_OPCODE(op);
1386         reg = (op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2;
1387 
1388         compiler->cache_arg = 0;
1389         compiler->cache_argw = 0;
1390         if (op >= SLJIT_ADD && (src & SLJIT_MEM)) {
1391                 ADJUST_LOCAL_OFFSET(src, srcw);
1392                 FAIL_IF(emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw, dst, dstw));
1393                 src = TMP_REG1;
1394                 srcw = 0;
1395         }
1396 
1397         type &= 0xff;
1398         if (type < SLJIT_D_EQUAL)
1399                 FAIL_IF(push_inst(compiler, BICC | get_cc(type) | 3, UNMOVABLE_INS));
1400         else
1401                 FAIL_IF(push_inst(compiler, FBFCC | get_cc(type) | 3, UNMOVABLE_INS));
1402 
1403         FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(1), UNMOVABLE_INS));
1404         FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(0), UNMOVABLE_INS));
1405 
1406         if (op >= SLJIT_ADD)
1407                 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP | ALT_KEEP_CACHE, dst, dstw, src, srcw, TMP_REG2, 0);
1408 
1409         return (reg == TMP_REG2) ? emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw) : SLJIT_SUCCESS;
1410 #else
1411 #error "Implementation required"
1412 #endif
1413 }
1414 
1415 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw, sljit_sw init_value)
1416 {
1417         sljit_si reg;
1418         struct sljit_const *const_;
1419 
1420         CHECK_ERROR_PTR();
1421         CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
1422         ADJUST_LOCAL_OFFSET(dst, dstw);
1423 
1424         const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
1425         PTR_FAIL_IF(!const_);
1426         set_const(const_, compiler);
1427 
1428         reg = SLOW_IS_REG(dst) ? dst : TMP_REG2;
1429 
1430         PTR_FAIL_IF(emit_const(compiler, reg, init_value));
1431 
1432         if (dst & SLJIT_MEM)
1433                 PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw));
1434         return const_;
1435 }
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root/ext/pcre/pcrelib/sljit/sljitNativeSPARC_common.c

DEFINITIONS
