Annotation of win32/pcre/sljit/sljitNativeX86_32.c, revision 1.1
1.1 ! misha 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: /* x86 32-bit arch dependent functions. */
! 28:
! 29: static int emit_do_imm(struct sljit_compiler *compiler, sljit_ub opcode, sljit_w imm)
! 30: {
! 31: sljit_ub *buf;
! 32:
! 33: buf = (sljit_ub*)ensure_buf(compiler, 1 + 1 + sizeof(sljit_w));
! 34: FAIL_IF(!buf);
! 35: INC_SIZE(1 + sizeof(sljit_w));
! 36: *buf++ = opcode;
! 37: *(sljit_w*)buf = imm;
! 38: return SLJIT_SUCCESS;
! 39: }
! 40:
! 41: static sljit_ub* generate_far_jump_code(struct sljit_jump *jump, sljit_ub *code_ptr, int type)
! 42: {
! 43: if (type == SLJIT_JUMP) {
! 44: *code_ptr++ = 0xe9;
! 45: jump->addr++;
! 46: }
! 47: else if (type >= SLJIT_FAST_CALL) {
! 48: *code_ptr++ = 0xe8;
! 49: jump->addr++;
! 50: }
! 51: else {
! 52: *code_ptr++ = 0x0f;
! 53: *code_ptr++ = get_jump_code(type);
! 54: jump->addr += 2;
! 55: }
! 56:
! 57: if (jump->flags & JUMP_LABEL)
! 58: jump->flags |= PATCH_MW;
! 59: else
! 60: *(sljit_w*)code_ptr = jump->u.target - (jump->addr + 4);
! 61: code_ptr += 4;
! 62:
! 63: return code_ptr;
! 64: }
! 65:
! 66: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
! 67: {
! 68: int size;
! 69: sljit_ub *buf;
! 70:
! 71: CHECK_ERROR();
! 72: check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size);
! 73:
! 74: compiler->temporaries = temporaries;
! 75: compiler->saveds = saveds;
! 76: compiler->args = args;
! 77: compiler->flags_saved = 0;
! 78:
! 79: #if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
! 80: size = 1 + (saveds <= 3 ? saveds : 3) + (args > 0 ? (args * 2) : 0) + (args > 2 ? 2 : 0);
! 81: #else
! 82: size = 1 + (saveds <= 3 ? saveds : 3) + (args > 0 ? (2 + args * 3) : 0);
! 83: #endif
! 84: buf = (sljit_ub*)ensure_buf(compiler, 1 + size);
! 85: FAIL_IF(!buf);
! 86:
! 87: INC_SIZE(size);
! 88: PUSH_REG(reg_map[TMP_REGISTER]);
! 89: #if !(defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
! 90: if (args > 0) {
! 91: *buf++ = 0x8b;
! 92: *buf++ = 0xc4 | (reg_map[TMP_REGISTER] << 3);
! 93: }
! 94: #endif
! 95: if (saveds > 2)
! 96: PUSH_REG(reg_map[SLJIT_SAVED_REG3]);
! 97: if (saveds > 1)
! 98: PUSH_REG(reg_map[SLJIT_SAVED_REG2]);
! 99: if (saveds > 0)
! 100: PUSH_REG(reg_map[SLJIT_SAVED_REG1]);
! 101:
! 102: #if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
! 103: if (args > 0) {
! 104: *buf++ = 0x8b;
! 105: *buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG1] << 3) | reg_map[SLJIT_TEMPORARY_REG3];
! 106: }
! 107: if (args > 1) {
! 108: *buf++ = 0x8b;
! 109: *buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG2] << 3) | reg_map[SLJIT_TEMPORARY_REG2];
! 110: }
! 111: if (args > 2) {
! 112: *buf++ = 0x8b;
! 113: *buf++ = 0x44 | (reg_map[SLJIT_SAVED_REG3] << 3);
! 114: *buf++ = 0x24;
! 115: *buf++ = sizeof(sljit_w) * (3 + 2); /* saveds >= 3 as well. */
! 116: }
! 117: #else
! 118: if (args > 0) {
! 119: *buf++ = 0x8b;
! 120: *buf++ = 0x40 | (reg_map[SLJIT_SAVED_REG1] << 3) | reg_map[TMP_REGISTER];
! 121: *buf++ = sizeof(sljit_w) * 2;
! 122: }
! 123: if (args > 1) {
! 124: *buf++ = 0x8b;
! 125: *buf++ = 0x40 | (reg_map[SLJIT_SAVED_REG2] << 3) | reg_map[TMP_REGISTER];
! 126: *buf++ = sizeof(sljit_w) * 3;
! 127: }
! 128: if (args > 2) {
! 129: *buf++ = 0x8b;
! 130: *buf++ = 0x40 | (reg_map[SLJIT_SAVED_REG3] << 3) | reg_map[TMP_REGISTER];
! 131: *buf++ = sizeof(sljit_w) * 4;
! 132: }
! 133: #endif
! 134:
! 135: local_size = (local_size + sizeof(sljit_uw) - 1) & ~(sizeof(sljit_uw) - 1);
! 136: compiler->temporaries_start = local_size;
! 137: if (temporaries > 3)
! 138: local_size += (temporaries - 3) * sizeof(sljit_uw);
! 139: compiler->saveds_start = local_size;
! 140: if (saveds > 3)
! 141: local_size += (saveds - 3) * sizeof(sljit_uw);
! 142:
! 143: #ifdef _WIN32
! 144: if (local_size > 1024) {
! 145: FAIL_IF(emit_do_imm(compiler, 0xb8 + reg_map[SLJIT_TEMPORARY_REG1], local_size));
! 146: FAIL_IF(sljit_emit_ijump(compiler, SLJIT_CALL1, SLJIT_IMM, SLJIT_FUNC_OFFSET(sljit_touch_stack)));
! 147: }
! 148: #endif
! 149:
! 150: compiler->local_size = local_size;
! 151: if (local_size > 0)
! 152: return emit_non_cum_binary(compiler, 0x2b, 0x29, 0x5 << 3, 0x2d,
! 153: SLJIT_LOCALS_REG, 0, SLJIT_LOCALS_REG, 0, SLJIT_IMM, local_size);
! 154:
! 155: return SLJIT_SUCCESS;
! 156: }
! 157:
! 158: SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
! 159: {
! 160: CHECK_ERROR_VOID();
! 161: check_sljit_set_context(compiler, args, temporaries, saveds, local_size);
! 162:
! 163: compiler->temporaries = temporaries;
! 164: compiler->saveds = saveds;
! 165: compiler->args = args;
! 166: compiler->local_size = (local_size + sizeof(sljit_uw) - 1) & ~(sizeof(sljit_uw) - 1);
! 167: compiler->temporaries_start = compiler->local_size;
! 168: if (temporaries > 3)
! 169: compiler->local_size += (temporaries - 3) * sizeof(sljit_uw);
! 170: compiler->saveds_start = compiler->local_size;
! 171: if (saveds > 3)
! 172: compiler->local_size += (saveds - 3) * sizeof(sljit_uw);
! 173: }
! 174:
! 175: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
! 176: {
! 177: int size;
! 178: sljit_ub *buf;
! 179:
! 180: CHECK_ERROR();
! 181: check_sljit_emit_return(compiler, op, src, srcw);
! 182: SLJIT_ASSERT(compiler->args >= 0);
! 183:
! 184: compiler->flags_saved = 0;
! 185: FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
! 186:
! 187: if (compiler->local_size > 0)
! 188: FAIL_IF(emit_cum_binary(compiler, 0x03, 0x01, 0x0 << 3, 0x05,
! 189: SLJIT_LOCALS_REG, 0, SLJIT_LOCALS_REG, 0, SLJIT_IMM, compiler->local_size));
! 190:
! 191: size = 2 + (compiler->saveds <= 3 ? compiler->saveds : 3);
! 192: #if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
! 193: if (compiler->args > 2)
! 194: size += 2;
! 195: #else
! 196: if (compiler->args > 0)
! 197: size += 2;
! 198: #endif
! 199: buf = (sljit_ub*)ensure_buf(compiler, 1 + size);
! 200: FAIL_IF(!buf);
! 201:
! 202: INC_SIZE(size);
! 203:
! 204: if (compiler->saveds > 0)
! 205: POP_REG(reg_map[SLJIT_SAVED_REG1]);
! 206: if (compiler->saveds > 1)
! 207: POP_REG(reg_map[SLJIT_SAVED_REG2]);
! 208: if (compiler->saveds > 2)
! 209: POP_REG(reg_map[SLJIT_SAVED_REG3]);
! 210: POP_REG(reg_map[TMP_REGISTER]);
! 211: #if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
! 212: if (compiler->args > 2)
! 213: RETN(sizeof(sljit_w));
! 214: else
! 215: RET();
! 216: #else
! 217: if (compiler->args > 0)
! 218: RETN(compiler->args * sizeof(sljit_w));
! 219: else
! 220: RET();
! 221: #endif
! 222:
! 223: return SLJIT_SUCCESS;
! 224: }
! 225:
! 226: /* --------------------------------------------------------------------- */
! 227: /* Operators */
! 228: /* --------------------------------------------------------------------- */
! 229:
! 230: /* Size contains the flags as well. */
! 231: static sljit_ub* emit_x86_instruction(struct sljit_compiler *compiler, int size,
! 232: /* The register or immediate operand. */
! 233: int a, sljit_w imma,
! 234: /* The general operand (not immediate). */
! 235: int b, sljit_w immb)
! 236: {
! 237: sljit_ub *buf;
! 238: sljit_ub *buf_ptr;
! 239: int flags = size & ~0xf;
! 240: int inst_size;
! 241:
! 242: /* Both cannot be switched on. */
! 243: SLJIT_ASSERT((flags & (EX86_BIN_INS | EX86_SHIFT_INS)) != (EX86_BIN_INS | EX86_SHIFT_INS));
! 244: /* Size flags not allowed for typed instructions. */
! 245: SLJIT_ASSERT(!(flags & (EX86_BIN_INS | EX86_SHIFT_INS)) || (flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) == 0);
! 246: /* Both size flags cannot be switched on. */
! 247: SLJIT_ASSERT((flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) != (EX86_BYTE_ARG | EX86_HALF_ARG));
! 248: #if (defined SLJIT_SSE2 && SLJIT_SSE2)
! 249: /* SSE2 and immediate is not possible. */
! 250: SLJIT_ASSERT(!(a & SLJIT_IMM) || !(flags & EX86_SSE2));
! 251: #endif
! 252:
! 253: size &= 0xf;
! 254: inst_size = size;
! 255:
! 256: #if (defined SLJIT_SSE2 && SLJIT_SSE2)
! 257: if (flags & EX86_PREF_F2)
! 258: inst_size++;
! 259: #endif
! 260: if (flags & EX86_PREF_66)
! 261: inst_size++;
! 262:
! 263: /* Calculate size of b. */
! 264: inst_size += 1; /* mod r/m byte. */
! 265: if (b & SLJIT_MEM) {
! 266: if ((b & 0x0f) == SLJIT_UNUSED)
! 267: inst_size += sizeof(sljit_w);
! 268: else if (immb != 0 && !(b & 0xf0)) {
! 269: /* Immediate operand. */
! 270: if (immb <= 127 && immb >= -128)
! 271: inst_size += sizeof(sljit_b);
! 272: else
! 273: inst_size += sizeof(sljit_w);
! 274: }
! 275:
! 276: if ((b & 0xf) == SLJIT_LOCALS_REG && !(b & 0xf0))
! 277: b |= SLJIT_LOCALS_REG << 4;
! 278:
! 279: if ((b & 0xf0) != SLJIT_UNUSED)
! 280: inst_size += 1; /* SIB byte. */
! 281: }
! 282:
! 283: /* Calculate size of a. */
! 284: if (a & SLJIT_IMM) {
! 285: if (flags & EX86_BIN_INS) {
! 286: if (imma <= 127 && imma >= -128) {
! 287: inst_size += 1;
! 288: flags |= EX86_BYTE_ARG;
! 289: } else
! 290: inst_size += 4;
! 291: }
! 292: else if (flags & EX86_SHIFT_INS) {
! 293: imma &= 0x1f;
! 294: if (imma != 1) {
! 295: inst_size ++;
! 296: flags |= EX86_BYTE_ARG;
! 297: }
! 298: } else if (flags & EX86_BYTE_ARG)
! 299: inst_size++;
! 300: else if (flags & EX86_HALF_ARG)
! 301: inst_size += sizeof(short);
! 302: else
! 303: inst_size += sizeof(sljit_w);
! 304: }
! 305: else
! 306: SLJIT_ASSERT(!(flags & EX86_SHIFT_INS) || a == SLJIT_PREF_SHIFT_REG);
! 307:
! 308: buf = (sljit_ub*)ensure_buf(compiler, 1 + inst_size);
! 309: PTR_FAIL_IF(!buf);
! 310:
! 311: /* Encoding the byte. */
! 312: INC_SIZE(inst_size);
! 313: #if (defined SLJIT_SSE2 && SLJIT_SSE2)
! 314: if (flags & EX86_PREF_F2)
! 315: *buf++ = 0xf2;
! 316: #endif
! 317: if (flags & EX86_PREF_66)
! 318: *buf++ = 0x66;
! 319:
! 320: buf_ptr = buf + size;
! 321:
! 322: /* Encode mod/rm byte. */
! 323: if (!(flags & EX86_SHIFT_INS)) {
! 324: if ((flags & EX86_BIN_INS) && (a & SLJIT_IMM))
! 325: *buf = (flags & EX86_BYTE_ARG) ? 0x83 : 0x81;
! 326:
! 327: if ((a & SLJIT_IMM) || (a == 0))
! 328: *buf_ptr = 0;
! 329: #if (defined SLJIT_SSE2 && SLJIT_SSE2)
! 330: else if (!(flags & EX86_SSE2))
! 331: *buf_ptr = reg_map[a] << 3;
! 332: else
! 333: *buf_ptr = a << 3;
! 334: #else
! 335: else
! 336: *buf_ptr = reg_map[a] << 3;
! 337: #endif
! 338: }
! 339: else {
! 340: if (a & SLJIT_IMM) {
! 341: if (imma == 1)
! 342: *buf = 0xd1;
! 343: else
! 344: *buf = 0xc1;
! 345: } else
! 346: *buf = 0xd3;
! 347: *buf_ptr = 0;
! 348: }
! 349:
! 350: if (!(b & SLJIT_MEM))
! 351: #if (defined SLJIT_SSE2 && SLJIT_SSE2)
! 352: *buf_ptr++ |= 0xc0 + ((!(flags & EX86_SSE2)) ? reg_map[b] : b);
! 353: #else
! 354: *buf_ptr++ |= 0xc0 + reg_map[b];
! 355: #endif
! 356: else if ((b & 0x0f) != SLJIT_UNUSED) {
! 357: if ((b & 0xf0) == SLJIT_UNUSED || (b & 0xf0) == (SLJIT_LOCALS_REG << 4)) {
! 358: if (immb != 0) {
! 359: if (immb <= 127 && immb >= -128)
! 360: *buf_ptr |= 0x40;
! 361: else
! 362: *buf_ptr |= 0x80;
! 363: }
! 364:
! 365: if ((b & 0xf0) == SLJIT_UNUSED)
! 366: *buf_ptr++ |= reg_map[b & 0x0f];
! 367: else {
! 368: *buf_ptr++ |= 0x04;
! 369: *buf_ptr++ = reg_map[b & 0x0f] | (reg_map[(b >> 4) & 0x0f] << 3);
! 370: }
! 371:
! 372: if (immb != 0) {
! 373: if (immb <= 127 && immb >= -128)
! 374: *buf_ptr++ = immb; /* 8 bit displacement. */
! 375: else {
! 376: *(sljit_w*)buf_ptr = immb; /* 32 bit displacement. */
! 377: buf_ptr += sizeof(sljit_w);
! 378: }
! 379: }
! 380: }
! 381: else {
! 382: *buf_ptr++ |= 0x04;
! 383: *buf_ptr++ = reg_map[b & 0x0f] | (reg_map[(b >> 4) & 0x0f] << 3) | (immb << 6);
! 384: }
! 385: }
! 386: else {
! 387: *buf_ptr++ |= 0x05;
! 388: *(sljit_w*)buf_ptr = immb; /* 32 bit displacement. */
! 389: buf_ptr += sizeof(sljit_w);
! 390: }
! 391:
! 392: if (a & SLJIT_IMM) {
! 393: if (flags & EX86_BYTE_ARG)
! 394: *buf_ptr = imma;
! 395: else if (flags & EX86_HALF_ARG)
! 396: *(short*)buf_ptr = imma;
! 397: else if (!(flags & EX86_SHIFT_INS))
! 398: *(sljit_w*)buf_ptr = imma;
! 399: }
! 400:
! 401: return !(flags & EX86_SHIFT_INS) ? buf : (buf + 1);
! 402: }
! 403:
! 404: /* --------------------------------------------------------------------- */
! 405: /* Call / return instructions */
! 406: /* --------------------------------------------------------------------- */
! 407:
! 408: static SLJIT_INLINE int call_with_args(struct sljit_compiler *compiler, int type)
! 409: {
! 410: sljit_ub *buf;
! 411:
! 412: #if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
! 413: buf = (sljit_ub*)ensure_buf(compiler, type >= SLJIT_CALL3 ? 1 + 2 + 1 : 1 + 2);
! 414: FAIL_IF(!buf);
! 415: INC_SIZE(type >= SLJIT_CALL3 ? 2 + 1 : 2);
! 416:
! 417: if (type >= SLJIT_CALL3)
! 418: PUSH_REG(reg_map[SLJIT_TEMPORARY_REG3]);
! 419: *buf++ = 0x8b;
! 420: *buf++ = 0xc0 | (reg_map[SLJIT_TEMPORARY_REG3] << 3) | reg_map[SLJIT_TEMPORARY_REG1];
! 421: #else
! 422: buf = (sljit_ub*)ensure_buf(compiler, type - SLJIT_CALL0 + 1);
! 423: FAIL_IF(!buf);
! 424: INC_SIZE(type - SLJIT_CALL0);
! 425: if (type >= SLJIT_CALL3)
! 426: PUSH_REG(reg_map[SLJIT_TEMPORARY_REG3]);
! 427: if (type >= SLJIT_CALL2)
! 428: PUSH_REG(reg_map[SLJIT_TEMPORARY_REG2]);
! 429: PUSH_REG(reg_map[SLJIT_TEMPORARY_REG1]);
! 430: #endif
! 431: return SLJIT_SUCCESS;
! 432: }
! 433:
! 434: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw, int args, int temporaries, int saveds, int local_size)
! 435: {
! 436: sljit_ub *buf;
! 437:
! 438: CHECK_ERROR();
! 439: check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, saveds, local_size);
! 440:
! 441: compiler->temporaries = temporaries;
! 442: compiler->saveds = saveds;
! 443: compiler->args = args;
! 444: compiler->local_size = (local_size + sizeof(sljit_uw) - 1) & ~(sizeof(sljit_uw) - 1);
! 445: compiler->temporaries_start = compiler->local_size;
! 446: if (temporaries > 3)
! 447: compiler->local_size += (temporaries - 3) * sizeof(sljit_uw);
! 448: compiler->saveds_start = compiler->local_size;
! 449: if (saveds > 3)
! 450: compiler->local_size += (saveds - 3) * sizeof(sljit_uw);
! 451:
! 452: CHECK_EXTRA_REGS(dst, dstw, (void)0);
! 453:
! 454: if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
! 455: buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
! 456: FAIL_IF(!buf);
! 457:
! 458: INC_SIZE(1);
! 459: POP_REG(reg_map[dst]);
! 460: return SLJIT_SUCCESS;
! 461: }
! 462: else if (dst & SLJIT_MEM) {
! 463: buf = emit_x86_instruction(compiler, 1, 0, 0, dst, dstw);
! 464: FAIL_IF(!buf);
! 465: *buf++ = 0x8f;
! 466: return SLJIT_SUCCESS;
! 467: }
! 468:
! 469: /* For UNUSED dst. Uncommon, but possible. */
! 470: buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
! 471: FAIL_IF(!buf);
! 472:
! 473: INC_SIZE(1);
! 474: POP_REG(reg_map[TMP_REGISTER]);
! 475: return SLJIT_SUCCESS;
! 476: }
! 477:
! 478: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
! 479: {
! 480: sljit_ub *buf;
! 481:
! 482: CHECK_ERROR();
! 483: check_sljit_emit_fast_return(compiler, src, srcw);
! 484:
! 485: CHECK_EXTRA_REGS(src, srcw, (void)0);
! 486:
! 487: if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS) {
! 488: buf = (sljit_ub*)ensure_buf(compiler, 1 + 1 + 1);
! 489: FAIL_IF(!buf);
! 490:
! 491: INC_SIZE(1 + 1);
! 492: PUSH_REG(reg_map[src]);
! 493: }
! 494: else if (src & SLJIT_MEM) {
! 495: buf = emit_x86_instruction(compiler, 1, 0, 0, src, srcw);
! 496: FAIL_IF(!buf);
! 497: *buf++ = 0xff;
! 498: *buf |= 6 << 3;
! 499:
! 500: buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
! 501: FAIL_IF(!buf);
! 502: INC_SIZE(1);
! 503: }
! 504: else {
! 505: /* SLJIT_IMM. */
! 506: buf = (sljit_ub*)ensure_buf(compiler, 1 + 5 + 1);
! 507: FAIL_IF(!buf);
! 508:
! 509: INC_SIZE(5 + 1);
! 510: *buf++ = 0x68;
! 511: *(sljit_w*)buf = srcw;
! 512: buf += sizeof(sljit_w);
! 513: }
! 514:
! 515: RET();
! 516: return SLJIT_SUCCESS;
! 517: }
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