Tristan Matthews | 0461646 | 2013-11-14 16:09:34 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Stack-less Just-In-Time compiler |
| 3 | * |
| 4 | * Copyright 2009-2010 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() |
| 28 | { |
| 29 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 30 | return "x86-32"; |
| 31 | #else |
| 32 | return "x86-64"; |
| 33 | #endif |
| 34 | } |
| 35 | |
| 36 | /* |
| 37 | 32b register indexes: |
| 38 | 0 - EAX |
| 39 | 1 - ECX |
| 40 | 2 - EDX |
| 41 | 3 - EBX |
| 42 | 4 - none |
| 43 | 5 - EBP |
| 44 | 6 - ESI |
| 45 | 7 - EDI |
| 46 | */ |
| 47 | |
| 48 | /* |
| 49 | 64b register indexes: |
| 50 | 0 - RAX |
| 51 | 1 - RCX |
| 52 | 2 - RDX |
| 53 | 3 - RBX |
| 54 | 4 - none |
| 55 | 5 - RBP |
| 56 | 6 - RSI |
| 57 | 7 - RDI |
| 58 | 8 - R8 - From now on REX prefix is required |
| 59 | 9 - R9 |
| 60 | 10 - R10 |
| 61 | 11 - R11 |
| 62 | 12 - R12 |
| 63 | 13 - R13 |
| 64 | 14 - R14 |
| 65 | 15 - R15 |
| 66 | */ |
| 67 | |
| 68 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 69 | |
| 70 | /* Last register + 1. */ |
| 71 | #define TMP_REGISTER (SLJIT_NO_REGISTERS + 1) |
| 72 | |
| 73 | static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 2] = { |
| 74 | 0, 0, 2, 1, 0, 0, 3, 6, 7, 0, 0, 4, 5 |
| 75 | }; |
| 76 | |
| 77 | #define CHECK_EXTRA_REGS(p, w, do) \ |
| 78 | if (p >= SLJIT_TEMPORARY_EREG1 && p <= SLJIT_TEMPORARY_EREG2) { \ |
| 79 | w = compiler->temporaries_start + (p - SLJIT_TEMPORARY_EREG1) * sizeof(sljit_w); \ |
| 80 | p = SLJIT_MEM1(SLJIT_LOCALS_REG); \ |
| 81 | do; \ |
| 82 | } \ |
| 83 | else if (p >= SLJIT_GENERAL_EREG1 && p <= SLJIT_GENERAL_EREG2) { \ |
| 84 | w = compiler->generals_start + (p - SLJIT_GENERAL_EREG1) * sizeof(sljit_w); \ |
| 85 | p = SLJIT_MEM1(SLJIT_LOCALS_REG); \ |
| 86 | do; \ |
| 87 | } |
| 88 | |
| 89 | #else /* SLJIT_CONFIG_X86_32 */ |
| 90 | |
| 91 | /* Last register + 1. */ |
| 92 | #define TMP_REGISTER (SLJIT_NO_REGISTERS + 1) |
| 93 | #define TMP_REG2 (SLJIT_NO_REGISTERS + 2) |
| 94 | #define TMP_REG3 (SLJIT_NO_REGISTERS + 3) |
| 95 | |
| 96 | /* Note: r12 & 0x7 == 0b100, which decoded as SIB byte present |
| 97 | Note: avoid to use r12 and r13 for memory addessing |
| 98 | therefore r12 is better for GENERAL_EREG than GENERAL_REG. */ |
| 99 | #ifndef _WIN64 |
| 100 | /* 1st passed in rdi, 2nd argument passed in rsi, 3rd in rdx. */ |
| 101 | static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 4] = { |
| 102 | 0, 0, 6, 1, 8, 11, 3, 15, 14, 13, 12, 4, 2, 7, 9 |
| 103 | }; |
| 104 | /* low-map. reg_map & 0x7. */ |
| 105 | static SLJIT_CONST sljit_ub reg_lmap[SLJIT_NO_REGISTERS + 4] = { |
| 106 | 0, 0, 6, 1, 0, 3, 3, 7, 6, 5, 4, 4, 2, 7, 1 |
| 107 | }; |
| 108 | #else |
| 109 | /* 1st passed in rcx, 2nd argument passed in rdx, 3rd in r8. */ |
| 110 | static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 4] = { |
| 111 | 0, 0, 2, 1, 11, 13, 3, 6, 7, 14, 12, 15, 10, 8, 9 |
| 112 | }; |
| 113 | /* low-map. reg_map & 0x7. */ |
| 114 | static SLJIT_CONST sljit_ub reg_lmap[SLJIT_NO_REGISTERS + 4] = { |
| 115 | 0, 0, 2, 1, 3, 5, 3, 6, 7, 6, 4, 7, 2, 0, 1 |
| 116 | }; |
| 117 | #endif |
| 118 | |
| 119 | #define REX_W 0x48 |
| 120 | #define REX_R 0x44 |
| 121 | #define REX_X 0x42 |
| 122 | #define REX_B 0x41 |
| 123 | #define REX 0x40 |
| 124 | |
| 125 | typedef unsigned int sljit_uhw; |
| 126 | typedef int sljit_hw; |
| 127 | |
| 128 | #define IS_HALFWORD(x) ((x) <= 0x7fffffffll && (x) >= -0x80000000ll) |
| 129 | #define NOT_HALFWORD(x) ((x) > 0x7fffffffll || (x) < -0x80000000ll) |
| 130 | |
| 131 | #define CHECK_EXTRA_REGS(p, w, do) |
| 132 | |
| 133 | #endif /* SLJIT_CONFIG_X86_32 */ |
| 134 | |
| 135 | #if (defined SLJIT_SSE2 && SLJIT_SSE2) |
| 136 | #define TMP_FREG (SLJIT_FLOAT_REG4 + 1) |
| 137 | #endif |
| 138 | |
| 139 | /* Size flags for emit_x86_instruction: */ |
| 140 | #define EX86_BIN_INS 0x0010 |
| 141 | #define EX86_SHIFT_INS 0x0020 |
| 142 | #define EX86_REX 0x0040 |
| 143 | #define EX86_NO_REXW 0x0080 |
| 144 | #define EX86_BYTE_ARG 0x0100 |
| 145 | #define EX86_HALF_ARG 0x0200 |
| 146 | #define EX86_PREF_66 0x0400 |
| 147 | |
| 148 | #if (defined SLJIT_SSE2 && SLJIT_SSE2) |
| 149 | #define EX86_PREF_F2 0x0800 |
| 150 | #define EX86_SSE2 0x1000 |
| 151 | #endif |
| 152 | |
| 153 | #define INC_SIZE(s) (*buf++ = (s), compiler->size += (s)) |
| 154 | #define INC_CSIZE(s) (*code++ = (s), compiler->size += (s)) |
| 155 | |
| 156 | #define PUSH_REG(r) (*buf++ = (0x50 + (r))) |
| 157 | #define POP_REG(r) (*buf++ = (0x58 + (r))) |
| 158 | #define RET() (*buf++ = (0xc3)) |
| 159 | #define RETN(n) (*buf++ = (0xc2), *buf++ = n, *buf++ = 0) |
| 160 | /* r32, r/m32 */ |
| 161 | #define MOV_RM(mod, reg, rm) (*buf++ = (0x8b), *buf++ = (mod) << 6 | (reg) << 3 | (rm)) |
| 162 | |
| 163 | static sljit_ub get_jump_code(int type) |
| 164 | { |
| 165 | switch (type) { |
| 166 | case SLJIT_C_EQUAL: |
| 167 | case SLJIT_C_FLOAT_EQUAL: |
| 168 | return 0x84; |
| 169 | |
| 170 | case SLJIT_C_NOT_EQUAL: |
| 171 | case SLJIT_C_FLOAT_NOT_EQUAL: |
| 172 | return 0x85; |
| 173 | |
| 174 | case SLJIT_C_LESS: |
| 175 | case SLJIT_C_FLOAT_LESS: |
| 176 | return 0x82; |
| 177 | |
| 178 | case SLJIT_C_GREATER_EQUAL: |
| 179 | case SLJIT_C_FLOAT_GREATER_EQUAL: |
| 180 | return 0x83; |
| 181 | |
| 182 | case SLJIT_C_GREATER: |
| 183 | case SLJIT_C_FLOAT_GREATER: |
| 184 | return 0x87; |
| 185 | |
| 186 | case SLJIT_C_LESS_EQUAL: |
| 187 | case SLJIT_C_FLOAT_LESS_EQUAL: |
| 188 | return 0x86; |
| 189 | |
| 190 | case SLJIT_C_SIG_LESS: |
| 191 | return 0x8c; |
| 192 | |
| 193 | case SLJIT_C_SIG_GREATER_EQUAL: |
| 194 | return 0x8d; |
| 195 | |
| 196 | case SLJIT_C_SIG_GREATER: |
| 197 | return 0x8f; |
| 198 | |
| 199 | case SLJIT_C_SIG_LESS_EQUAL: |
| 200 | return 0x8e; |
| 201 | |
| 202 | case SLJIT_C_OVERFLOW: |
| 203 | case SLJIT_C_MUL_OVERFLOW: |
| 204 | return 0x80; |
| 205 | |
| 206 | case SLJIT_C_NOT_OVERFLOW: |
| 207 | case SLJIT_C_MUL_NOT_OVERFLOW: |
| 208 | return 0x81; |
| 209 | |
| 210 | case SLJIT_C_FLOAT_NAN: |
| 211 | return 0x8a; |
| 212 | |
| 213 | case SLJIT_C_FLOAT_NOT_NAN: |
| 214 | return 0x8b; |
| 215 | } |
| 216 | return 0; |
| 217 | } |
| 218 | |
| 219 | static sljit_ub* generate_far_jump_code(struct sljit_jump *jump, sljit_ub *code_ptr, int type); |
| 220 | |
| 221 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 222 | static sljit_ub* generate_fixed_jump(sljit_ub *code_ptr, sljit_w addr, int type); |
| 223 | #endif |
| 224 | |
| 225 | static sljit_ub* generate_near_jump_code(struct sljit_jump *jump, sljit_ub *code_ptr, sljit_ub *code, int type) |
| 226 | { |
| 227 | int short_jump; |
| 228 | sljit_uw label_addr; |
| 229 | |
| 230 | if (jump->flags & JUMP_LABEL) |
| 231 | label_addr = (sljit_uw)(code + jump->u.label->size); |
| 232 | else |
| 233 | label_addr = jump->u.target; |
| 234 | short_jump = (sljit_w)(label_addr - (jump->addr + 2)) >= -128 && (sljit_w)(label_addr - (jump->addr + 2)) <= 127; |
| 235 | |
| 236 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 237 | if ((sljit_w)(label_addr - (jump->addr + 1)) > 0x7fffffffll || (sljit_w)(label_addr - (jump->addr + 1)) < -0x80000000ll) |
| 238 | return generate_far_jump_code(jump, code_ptr, type); |
| 239 | #endif |
| 240 | |
| 241 | if (type == SLJIT_JUMP) { |
| 242 | if (short_jump) |
| 243 | *code_ptr++ = 0xeb; |
| 244 | else |
| 245 | *code_ptr++ = 0xe9; |
| 246 | jump->addr++; |
| 247 | } |
| 248 | else if (type >= SLJIT_FAST_CALL) { |
| 249 | short_jump = 0; |
| 250 | *code_ptr++ = 0xe8; |
| 251 | jump->addr++; |
| 252 | } |
| 253 | else if (short_jump) { |
| 254 | *code_ptr++ = get_jump_code(type) - 0x10; |
| 255 | jump->addr++; |
| 256 | } |
| 257 | else { |
| 258 | *code_ptr++ = 0x0f; |
| 259 | *code_ptr++ = get_jump_code(type); |
| 260 | jump->addr += 2; |
| 261 | } |
| 262 | |
| 263 | if (short_jump) { |
| 264 | jump->flags |= PATCH_MB; |
| 265 | code_ptr += sizeof(sljit_b); |
| 266 | } else { |
| 267 | jump->flags |= PATCH_MW; |
| 268 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 269 | code_ptr += sizeof(sljit_w); |
| 270 | #else |
| 271 | code_ptr += sizeof(sljit_hw); |
| 272 | #endif |
| 273 | } |
| 274 | |
| 275 | return code_ptr; |
| 276 | } |
| 277 | |
| 278 | SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler) |
| 279 | { |
| 280 | struct sljit_memory_fragment *buf; |
| 281 | sljit_ub *code; |
| 282 | sljit_ub *code_ptr; |
| 283 | sljit_ub *buf_ptr; |
| 284 | sljit_ub *buf_end; |
| 285 | sljit_ub len; |
| 286 | |
| 287 | struct sljit_label *label; |
| 288 | struct sljit_jump *jump; |
| 289 | struct sljit_const *const_; |
| 290 | |
| 291 | CHECK_ERROR_PTR(); |
| 292 | check_sljit_generate_code(compiler); |
| 293 | reverse_buf(compiler); |
| 294 | |
| 295 | /* Second code generation pass. */ |
| 296 | code = (sljit_ub*)SLJIT_MALLOC_EXEC(compiler->size); |
| 297 | PTR_FAIL_WITH_EXEC_IF(code); |
| 298 | buf = compiler->buf; |
| 299 | |
| 300 | code_ptr = code; |
| 301 | label = compiler->labels; |
| 302 | jump = compiler->jumps; |
| 303 | const_ = compiler->consts; |
| 304 | do { |
| 305 | buf_ptr = buf->memory; |
| 306 | buf_end = buf_ptr + buf->used_size; |
| 307 | do { |
| 308 | len = *buf_ptr++; |
| 309 | if (len > 0) { |
| 310 | /* The code is already generated. */ |
| 311 | SLJIT_MEMMOVE(code_ptr, buf_ptr, len); |
| 312 | code_ptr += len; |
| 313 | buf_ptr += len; |
| 314 | } |
| 315 | else { |
| 316 | if (*buf_ptr >= 4) { |
| 317 | jump->addr = (sljit_uw)code_ptr; |
| 318 | if (!(jump->flags & SLJIT_REWRITABLE_JUMP)) |
| 319 | code_ptr = generate_near_jump_code(jump, code_ptr, code, *buf_ptr - 4); |
| 320 | else |
| 321 | code_ptr = generate_far_jump_code(jump, code_ptr, *buf_ptr - 4); |
| 322 | jump = jump->next; |
| 323 | } |
| 324 | else if (*buf_ptr == 0) { |
| 325 | label->addr = (sljit_uw)code_ptr; |
| 326 | label->size = code_ptr - code; |
| 327 | label = label->next; |
| 328 | } |
| 329 | else if (*buf_ptr == 1) { |
| 330 | const_->addr = ((sljit_uw)code_ptr) - sizeof(sljit_w); |
| 331 | const_ = const_->next; |
| 332 | } |
| 333 | else { |
| 334 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 335 | *code_ptr++ = (*buf_ptr == 2) ? 0xe8 /* call */ : 0xe9 /* jmp */; |
| 336 | buf_ptr++; |
| 337 | *(sljit_w*)code_ptr = *(sljit_w*)buf_ptr - ((sljit_w)code_ptr + sizeof(sljit_w)); |
| 338 | code_ptr += sizeof(sljit_w); |
| 339 | buf_ptr += sizeof(sljit_w) - 1; |
| 340 | #else |
| 341 | code_ptr = generate_fixed_jump(code_ptr, *(sljit_w*)(buf_ptr + 1), *buf_ptr); |
| 342 | buf_ptr += sizeof(sljit_w); |
| 343 | #endif |
| 344 | } |
| 345 | buf_ptr++; |
| 346 | } |
| 347 | } while (buf_ptr < buf_end); |
| 348 | SLJIT_ASSERT(buf_ptr == buf_end); |
| 349 | buf = buf->next; |
| 350 | } while (buf); |
| 351 | |
| 352 | SLJIT_ASSERT(!label); |
| 353 | SLJIT_ASSERT(!jump); |
| 354 | SLJIT_ASSERT(!const_); |
| 355 | |
| 356 | jump = compiler->jumps; |
| 357 | while (jump) { |
| 358 | if (jump->flags & PATCH_MB) { |
| 359 | SLJIT_ASSERT((sljit_w)(jump->u.label->addr - (jump->addr + sizeof(sljit_b))) >= -128 && (sljit_w)(jump->u.label->addr - (jump->addr + sizeof(sljit_b))) <= 127); |
| 360 | *(sljit_ub*)jump->addr = (sljit_ub)(jump->u.label->addr - (jump->addr + sizeof(sljit_b))); |
| 361 | } else if (jump->flags & PATCH_MW) { |
| 362 | if (jump->flags & JUMP_LABEL) { |
| 363 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 364 | *(sljit_w*)jump->addr = (sljit_w)(jump->u.label->addr - (jump->addr + sizeof(sljit_w))); |
| 365 | #else |
| 366 | SLJIT_ASSERT((sljit_w)(jump->u.label->addr - (jump->addr + sizeof(sljit_hw))) >= -0x80000000ll && (sljit_w)(jump->u.label->addr - (jump->addr + sizeof(sljit_hw))) <= 0x7fffffffll); |
| 367 | *(sljit_hw*)jump->addr = (sljit_hw)(jump->u.label->addr - (jump->addr + sizeof(sljit_hw))); |
| 368 | #endif |
| 369 | } |
| 370 | else { |
| 371 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 372 | *(sljit_w*)jump->addr = (sljit_w)(jump->u.target - (jump->addr + sizeof(sljit_w))); |
| 373 | #else |
| 374 | SLJIT_ASSERT((sljit_w)(jump->u.target - (jump->addr + sizeof(sljit_hw))) >= -0x80000000ll && (sljit_w)(jump->u.target - (jump->addr + sizeof(sljit_hw))) <= 0x7fffffffll); |
| 375 | *(sljit_hw*)jump->addr = (sljit_hw)(jump->u.target - (jump->addr + sizeof(sljit_hw))); |
| 376 | #endif |
| 377 | } |
| 378 | } |
| 379 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 380 | else if (jump->flags & PATCH_MD) |
| 381 | *(sljit_w*)jump->addr = jump->u.label->addr; |
| 382 | #endif |
| 383 | |
| 384 | jump = jump->next; |
| 385 | } |
| 386 | |
| 387 | /* Maybe we waste some space because of short jumps. */ |
| 388 | SLJIT_ASSERT(code_ptr <= code + compiler->size); |
| 389 | compiler->error = SLJIT_ERR_COMPILED; |
| 390 | compiler->executable_size = compiler->size; |
| 391 | return (void*)code; |
| 392 | } |
| 393 | |
| 394 | /* --------------------------------------------------------------------- */ |
| 395 | /* Operators */ |
| 396 | /* --------------------------------------------------------------------- */ |
| 397 | |
| 398 | static int emit_cum_binary(struct sljit_compiler *compiler, |
| 399 | sljit_ub op_rm, sljit_ub op_mr, sljit_ub op_imm, sljit_ub op_eax_imm, |
| 400 | int dst, sljit_w dstw, |
| 401 | int src1, sljit_w src1w, |
| 402 | int src2, sljit_w src2w); |
| 403 | |
| 404 | static int emit_non_cum_binary(struct sljit_compiler *compiler, |
| 405 | sljit_ub op_rm, sljit_ub op_mr, sljit_ub op_imm, sljit_ub op_eax_imm, |
| 406 | int dst, sljit_w dstw, |
| 407 | int src1, sljit_w src1w, |
| 408 | int src2, sljit_w src2w); |
| 409 | |
| 410 | static int emit_mov(struct sljit_compiler *compiler, |
| 411 | int dst, sljit_w dstw, |
| 412 | int src, sljit_w srcw); |
| 413 | |
| 414 | static SLJIT_INLINE int emit_save_flags(struct sljit_compiler *compiler) |
| 415 | { |
| 416 | sljit_ub *buf; |
| 417 | |
| 418 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 419 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 5); |
| 420 | FAIL_IF(!buf); |
| 421 | INC_SIZE(5); |
| 422 | *buf++ = 0x9c; /* pushfd */ |
| 423 | #else |
| 424 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 6); |
| 425 | FAIL_IF(!buf); |
| 426 | INC_SIZE(6); |
| 427 | *buf++ = 0x9c; /* pushfq */ |
| 428 | *buf++ = 0x48; |
| 429 | #endif |
| 430 | *buf++ = 0x8d; /* lea esp/rsp, [esp/rsp + sizeof(sljit_w)] */ |
| 431 | *buf++ = 0x64; |
| 432 | *buf++ = 0x24; |
| 433 | *buf++ = sizeof(sljit_w); |
| 434 | compiler->flags_saved = 1; |
| 435 | return SLJIT_SUCCESS; |
| 436 | } |
| 437 | |
| 438 | static SLJIT_INLINE int emit_restore_flags(struct sljit_compiler *compiler, int keep_flags) |
| 439 | { |
| 440 | sljit_ub *buf; |
| 441 | |
| 442 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 443 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 5); |
| 444 | FAIL_IF(!buf); |
| 445 | INC_SIZE(5); |
| 446 | #else |
| 447 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 6); |
| 448 | FAIL_IF(!buf); |
| 449 | INC_SIZE(6); |
| 450 | *buf++ = 0x48; |
| 451 | #endif |
| 452 | *buf++ = 0x8d; /* lea esp/rsp, [esp/rsp - sizeof(sljit_w)] */ |
| 453 | *buf++ = 0x64; |
| 454 | *buf++ = 0x24; |
| 455 | *buf++ = (sljit_ub)-(int)sizeof(sljit_w); |
| 456 | *buf++ = 0x9d; /* popfd / popfq */ |
| 457 | compiler->flags_saved = keep_flags; |
| 458 | return SLJIT_SUCCESS; |
| 459 | } |
| 460 | |
| 461 | #ifdef _WIN32 |
| 462 | #include <malloc.h> |
| 463 | |
| 464 | static void SLJIT_CALL sljit_touch_stack(sljit_w local_size) |
| 465 | { |
| 466 | /* Workaround for calling _chkstk. */ |
| 467 | alloca(local_size); |
| 468 | } |
| 469 | #endif |
| 470 | |
| 471 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 472 | #include "sljitNativeX86_32.c" |
| 473 | #else |
| 474 | #include "sljitNativeX86_64.c" |
| 475 | #endif |
| 476 | |
| 477 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op) |
| 478 | { |
| 479 | sljit_ub *buf; |
| 480 | |
| 481 | CHECK_ERROR(); |
| 482 | check_sljit_emit_op0(compiler, op); |
| 483 | |
| 484 | op = GET_OPCODE(op); |
| 485 | switch (op) { |
| 486 | case SLJIT_BREAKPOINT: |
| 487 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 1); |
| 488 | FAIL_IF(!buf); |
| 489 | INC_SIZE(1); |
| 490 | *buf = 0xcc; |
| 491 | break; |
| 492 | case SLJIT_NOP: |
| 493 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 1); |
| 494 | FAIL_IF(!buf); |
| 495 | INC_SIZE(1); |
| 496 | *buf = 0x90; |
| 497 | break; |
| 498 | } |
| 499 | |
| 500 | return SLJIT_SUCCESS; |
| 501 | } |
| 502 | |
| 503 | static int emit_mov(struct sljit_compiler *compiler, |
| 504 | int dst, sljit_w dstw, |
| 505 | int src, sljit_w srcw) |
| 506 | { |
| 507 | sljit_ub* code; |
| 508 | |
| 509 | if (dst == SLJIT_UNUSED) { |
| 510 | /* No destination, doesn't need to setup flags. */ |
| 511 | if (src & SLJIT_MEM) { |
| 512 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src, srcw); |
| 513 | FAIL_IF(!code); |
| 514 | *code = 0x8b; |
| 515 | } |
| 516 | return SLJIT_SUCCESS; |
| 517 | } |
| 518 | if (src >= SLJIT_TEMPORARY_REG1 && src <= TMP_REGISTER) { |
| 519 | code = emit_x86_instruction(compiler, 1, src, 0, dst, dstw); |
| 520 | FAIL_IF(!code); |
| 521 | *code = 0x89; |
| 522 | return SLJIT_SUCCESS; |
| 523 | } |
| 524 | if (src & SLJIT_IMM) { |
| 525 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) { |
| 526 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 527 | return emit_do_imm(compiler, 0xb8 + reg_map[dst], srcw); |
| 528 | #else |
| 529 | if (!compiler->mode32) { |
| 530 | if (NOT_HALFWORD(srcw)) |
| 531 | return emit_load_imm64(compiler, dst, srcw); |
| 532 | } |
| 533 | else |
| 534 | return emit_do_imm32(compiler, (reg_map[dst] >= 8) ? REX_B : 0, 0xb8 + reg_lmap[dst], srcw); |
| 535 | #endif |
| 536 | } |
| 537 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 538 | if (!compiler->mode32 && NOT_HALFWORD(srcw)) { |
| 539 | FAIL_IF(emit_load_imm64(compiler, TMP_REG2, srcw)); |
| 540 | code = emit_x86_instruction(compiler, 1, TMP_REG2, 0, dst, dstw); |
| 541 | FAIL_IF(!code); |
| 542 | *code = 0x89; |
| 543 | return SLJIT_SUCCESS; |
| 544 | } |
| 545 | #endif |
| 546 | code = emit_x86_instruction(compiler, 1, SLJIT_IMM, srcw, dst, dstw); |
| 547 | FAIL_IF(!code); |
| 548 | *code = 0xc7; |
| 549 | return SLJIT_SUCCESS; |
| 550 | } |
| 551 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) { |
| 552 | code = emit_x86_instruction(compiler, 1, dst, 0, src, srcw); |
| 553 | FAIL_IF(!code); |
| 554 | *code = 0x8b; |
| 555 | return SLJIT_SUCCESS; |
| 556 | } |
| 557 | |
| 558 | /* Memory to memory move. Requires two instruction. */ |
| 559 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src, srcw); |
| 560 | FAIL_IF(!code); |
| 561 | *code = 0x8b; |
| 562 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, dst, dstw); |
| 563 | FAIL_IF(!code); |
| 564 | *code = 0x89; |
| 565 | return SLJIT_SUCCESS; |
| 566 | } |
| 567 | |
| 568 | #define EMIT_MOV(compiler, dst, dstw, src, srcw) \ |
| 569 | FAIL_IF(emit_mov(compiler, dst, dstw, src, srcw)); |
| 570 | |
| 571 | #define ENCODE_PREFIX(prefix) \ |
| 572 | do { \ |
| 573 | code = (sljit_ub*)ensure_buf(compiler, 1 + 1); \ |
| 574 | FAIL_IF(!code); \ |
| 575 | INC_CSIZE(1); \ |
| 576 | *code = (prefix); \ |
| 577 | } while (0) |
| 578 | |
| 579 | static int emit_mov_byte(struct sljit_compiler *compiler, int sign, |
| 580 | int dst, sljit_w dstw, |
| 581 | int src, sljit_w srcw) |
| 582 | { |
| 583 | sljit_ub* code; |
| 584 | int dst_r; |
| 585 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 586 | int work_r; |
| 587 | #endif |
| 588 | |
| 589 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 590 | compiler->mode32 = 0; |
| 591 | #endif |
| 592 | |
| 593 | if (dst == SLJIT_UNUSED && !(src & SLJIT_MEM)) |
| 594 | return SLJIT_SUCCESS; /* Empty instruction. */ |
| 595 | |
| 596 | if (src & SLJIT_IMM) { |
| 597 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) { |
| 598 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 599 | return emit_do_imm(compiler, 0xb8 + reg_map[dst], srcw); |
| 600 | #else |
| 601 | return emit_load_imm64(compiler, dst, srcw); |
| 602 | #endif |
| 603 | } |
| 604 | code = emit_x86_instruction(compiler, 1 | EX86_BYTE_ARG | EX86_NO_REXW, SLJIT_IMM, srcw, dst, dstw); |
| 605 | FAIL_IF(!code); |
| 606 | *code = 0xc6; |
| 607 | return SLJIT_SUCCESS; |
| 608 | } |
| 609 | |
| 610 | dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) ? dst : TMP_REGISTER; |
| 611 | |
| 612 | if ((dst & SLJIT_MEM) && src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS) { |
| 613 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 614 | if (reg_map[src] >= 4) { |
| 615 | SLJIT_ASSERT(dst_r == TMP_REGISTER); |
| 616 | EMIT_MOV(compiler, TMP_REGISTER, 0, src, 0); |
| 617 | } else |
| 618 | dst_r = src; |
| 619 | #else |
| 620 | dst_r = src; |
| 621 | #endif |
| 622 | } |
| 623 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 624 | else if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS && reg_map[src] >= 4) { |
| 625 | /* src, dst are registers. */ |
| 626 | SLJIT_ASSERT(dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER); |
| 627 | if (reg_map[dst] < 4) { |
| 628 | if (dst != src) |
| 629 | EMIT_MOV(compiler, dst, 0, src, 0); |
| 630 | code = emit_x86_instruction(compiler, 2, dst, 0, dst, 0); |
| 631 | FAIL_IF(!code); |
| 632 | *code++ = 0x0f; |
| 633 | *code = sign ? 0xbe : 0xb6; |
| 634 | } |
| 635 | else { |
| 636 | if (dst != src) |
| 637 | EMIT_MOV(compiler, dst, 0, src, 0); |
| 638 | if (sign) { |
| 639 | /* shl reg, 24 */ |
| 640 | code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_IMM, 24, dst, 0); |
| 641 | FAIL_IF(!code); |
| 642 | *code |= 0x4 << 3; |
| 643 | code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_IMM, 24, dst, 0); |
| 644 | FAIL_IF(!code); |
| 645 | /* shr/sar reg, 24 */ |
| 646 | *code |= 0x7 << 3; |
| 647 | } |
| 648 | else { |
| 649 | /* and dst, 0xff */ |
| 650 | code = emit_x86_instruction(compiler, 1 | EX86_BIN_INS, SLJIT_IMM, 255, dst, 0); |
| 651 | FAIL_IF(!code); |
| 652 | *(code + 1) |= 0x4 << 3; |
| 653 | } |
| 654 | } |
| 655 | return SLJIT_SUCCESS; |
| 656 | } |
| 657 | #endif |
| 658 | else { |
| 659 | /* src can be memory addr or reg_map[src] < 4 on x86_32 architectures. */ |
| 660 | code = emit_x86_instruction(compiler, 2, dst_r, 0, src, srcw); |
| 661 | FAIL_IF(!code); |
| 662 | *code++ = 0x0f; |
| 663 | *code = sign ? 0xbe : 0xb6; |
| 664 | } |
| 665 | |
| 666 | if (dst & SLJIT_MEM) { |
| 667 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 668 | if (dst_r == TMP_REGISTER) { |
| 669 | /* Find a non-used register, whose reg_map[src] < 4. */ |
| 670 | if ((dst & 0xf) == SLJIT_TEMPORARY_REG1) { |
| 671 | if ((dst & 0xf0) == (SLJIT_TEMPORARY_REG2 << 4)) |
| 672 | work_r = SLJIT_TEMPORARY_REG3; |
| 673 | else |
| 674 | work_r = SLJIT_TEMPORARY_REG2; |
| 675 | } |
| 676 | else { |
| 677 | if ((dst & 0xf0) != (SLJIT_TEMPORARY_REG1 << 4)) |
| 678 | work_r = SLJIT_TEMPORARY_REG1; |
| 679 | else if ((dst & 0xf) == SLJIT_TEMPORARY_REG2) |
| 680 | work_r = SLJIT_TEMPORARY_REG3; |
| 681 | else |
| 682 | work_r = SLJIT_TEMPORARY_REG2; |
| 683 | } |
| 684 | |
| 685 | if (work_r == SLJIT_TEMPORARY_REG1) { |
| 686 | ENCODE_PREFIX(0x90 + reg_map[TMP_REGISTER]); |
| 687 | } |
| 688 | else { |
| 689 | code = emit_x86_instruction(compiler, 1, work_r, 0, dst_r, 0); |
| 690 | FAIL_IF(!code); |
| 691 | *code = 0x87; |
| 692 | } |
| 693 | |
| 694 | code = emit_x86_instruction(compiler, 1, work_r, 0, dst, dstw); |
| 695 | FAIL_IF(!code); |
| 696 | *code = 0x88; |
| 697 | |
| 698 | if (work_r == SLJIT_TEMPORARY_REG1) { |
| 699 | ENCODE_PREFIX(0x90 + reg_map[TMP_REGISTER]); |
| 700 | } |
| 701 | else { |
| 702 | code = emit_x86_instruction(compiler, 1, work_r, 0, dst_r, 0); |
| 703 | FAIL_IF(!code); |
| 704 | *code = 0x87; |
| 705 | } |
| 706 | } |
| 707 | else { |
| 708 | code = emit_x86_instruction(compiler, 1, dst_r, 0, dst, dstw); |
| 709 | FAIL_IF(!code); |
| 710 | *code = 0x88; |
| 711 | } |
| 712 | #else |
| 713 | code = emit_x86_instruction(compiler, 1 | EX86_REX | EX86_NO_REXW, dst_r, 0, dst, dstw); |
| 714 | FAIL_IF(!code); |
| 715 | *code = 0x88; |
| 716 | #endif |
| 717 | } |
| 718 | |
| 719 | return SLJIT_SUCCESS; |
| 720 | } |
| 721 | |
| 722 | static int emit_mov_half(struct sljit_compiler *compiler, int sign, |
| 723 | int dst, sljit_w dstw, |
| 724 | int src, sljit_w srcw) |
| 725 | { |
| 726 | sljit_ub* code; |
| 727 | int dst_r; |
| 728 | |
| 729 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 730 | compiler->mode32 = 0; |
| 731 | #endif |
| 732 | |
| 733 | if (dst == SLJIT_UNUSED && !(src & SLJIT_MEM)) |
| 734 | return SLJIT_SUCCESS; /* Empty instruction. */ |
| 735 | |
| 736 | if (src & SLJIT_IMM) { |
| 737 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) { |
| 738 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 739 | return emit_do_imm(compiler, 0xb8 + reg_map[dst], srcw); |
| 740 | #else |
| 741 | return emit_load_imm64(compiler, dst, srcw); |
| 742 | #endif |
| 743 | } |
| 744 | code = emit_x86_instruction(compiler, 1 | EX86_HALF_ARG | EX86_NO_REXW | EX86_PREF_66, SLJIT_IMM, srcw, dst, dstw); |
| 745 | FAIL_IF(!code); |
| 746 | *code = 0xc7; |
| 747 | return SLJIT_SUCCESS; |
| 748 | } |
| 749 | |
| 750 | dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) ? dst : TMP_REGISTER; |
| 751 | |
| 752 | if ((dst & SLJIT_MEM) && (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)) |
| 753 | dst_r = src; |
| 754 | else { |
| 755 | code = emit_x86_instruction(compiler, 2, dst_r, 0, src, srcw); |
| 756 | FAIL_IF(!code); |
| 757 | *code++ = 0x0f; |
| 758 | *code = sign ? 0xbf : 0xb7; |
| 759 | } |
| 760 | |
| 761 | if (dst & SLJIT_MEM) { |
| 762 | code = emit_x86_instruction(compiler, 1 | EX86_NO_REXW | EX86_PREF_66, dst_r, 0, dst, dstw); |
| 763 | FAIL_IF(!code); |
| 764 | *code = 0x89; |
| 765 | } |
| 766 | |
| 767 | return SLJIT_SUCCESS; |
| 768 | } |
| 769 | |
| 770 | static int emit_unary(struct sljit_compiler *compiler, int un_index, |
| 771 | int dst, sljit_w dstw, |
| 772 | int src, sljit_w srcw) |
| 773 | { |
| 774 | sljit_ub* code; |
| 775 | |
| 776 | if (dst == SLJIT_UNUSED) { |
| 777 | EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw); |
| 778 | code = emit_x86_instruction(compiler, 1, 0, 0, TMP_REGISTER, 0); |
| 779 | FAIL_IF(!code); |
| 780 | *code++ = 0xf7; |
| 781 | *code |= (un_index) << 3; |
| 782 | return SLJIT_SUCCESS; |
| 783 | } |
| 784 | if (dst == src && dstw == srcw) { |
| 785 | /* Same input and output */ |
| 786 | code = emit_x86_instruction(compiler, 1, 0, 0, dst, dstw); |
| 787 | FAIL_IF(!code); |
| 788 | *code++ = 0xf7; |
| 789 | *code |= (un_index) << 3; |
| 790 | return SLJIT_SUCCESS; |
| 791 | } |
| 792 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) { |
| 793 | EMIT_MOV(compiler, dst, 0, src, srcw); |
| 794 | code = emit_x86_instruction(compiler, 1, 0, 0, dst, dstw); |
| 795 | FAIL_IF(!code); |
| 796 | *code++ = 0xf7; |
| 797 | *code |= (un_index) << 3; |
| 798 | return SLJIT_SUCCESS; |
| 799 | } |
| 800 | EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw); |
| 801 | code = emit_x86_instruction(compiler, 1, 0, 0, TMP_REGISTER, 0); |
| 802 | FAIL_IF(!code); |
| 803 | *code++ = 0xf7; |
| 804 | *code |= (un_index) << 3; |
| 805 | EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0); |
| 806 | return SLJIT_SUCCESS; |
| 807 | } |
| 808 | |
| 809 | static int emit_not_with_flags(struct sljit_compiler *compiler, |
| 810 | int dst, sljit_w dstw, |
| 811 | int src, sljit_w srcw) |
| 812 | { |
| 813 | sljit_ub* code; |
| 814 | |
| 815 | if (dst == SLJIT_UNUSED) { |
| 816 | EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw); |
| 817 | code = emit_x86_instruction(compiler, 1, 0, 0, TMP_REGISTER, 0); |
| 818 | FAIL_IF(!code); |
| 819 | *code++ = 0xf7; |
| 820 | *code |= 0x2 << 3; |
| 821 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, TMP_REGISTER, 0); |
| 822 | FAIL_IF(!code); |
| 823 | *code = 0x0b; |
| 824 | return SLJIT_SUCCESS; |
| 825 | } |
| 826 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) { |
| 827 | EMIT_MOV(compiler, dst, 0, src, srcw); |
| 828 | code = emit_x86_instruction(compiler, 1, 0, 0, dst, dstw); |
| 829 | FAIL_IF(!code); |
| 830 | *code++ = 0xf7; |
| 831 | *code |= 0x2 << 3; |
| 832 | code = emit_x86_instruction(compiler, 1, dst, 0, dst, 0); |
| 833 | FAIL_IF(!code); |
| 834 | *code = 0x0b; |
| 835 | return SLJIT_SUCCESS; |
| 836 | } |
| 837 | EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw); |
| 838 | code = emit_x86_instruction(compiler, 1, 0, 0, TMP_REGISTER, 0); |
| 839 | FAIL_IF(!code); |
| 840 | *code++ = 0xf7; |
| 841 | *code |= 0x2 << 3; |
| 842 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, TMP_REGISTER, 0); |
| 843 | FAIL_IF(!code); |
| 844 | *code = 0x0b; |
| 845 | EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0); |
| 846 | return SLJIT_SUCCESS; |
| 847 | } |
| 848 | |
| 849 | static int emit_clz(struct sljit_compiler *compiler, int op, |
| 850 | int dst, sljit_w dstw, |
| 851 | int src, sljit_w srcw) |
| 852 | { |
| 853 | sljit_ub* code; |
| 854 | int dst_r; |
| 855 | |
| 856 | if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) { |
| 857 | /* Just set the zero flag. */ |
| 858 | EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw); |
| 859 | code = emit_x86_instruction(compiler, 1, 0, 0, TMP_REGISTER, 0); |
| 860 | FAIL_IF(!code); |
| 861 | *code++ = 0xf7; |
| 862 | *code |= 0x2 << 3; |
| 863 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 864 | code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_IMM, 31, TMP_REGISTER, 0); |
| 865 | #else |
| 866 | code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_IMM, !(op & SLJIT_INT_OP) ? 63 : 31, TMP_REGISTER, 0); |
| 867 | #endif |
| 868 | FAIL_IF(!code); |
| 869 | *code |= 0x5 << 3; |
| 870 | return SLJIT_SUCCESS; |
| 871 | } |
| 872 | |
| 873 | if (SLJIT_UNLIKELY(src & SLJIT_IMM)) { |
| 874 | EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw); |
| 875 | src = TMP_REGISTER; |
| 876 | srcw = 0; |
| 877 | } |
| 878 | |
| 879 | code = emit_x86_instruction(compiler, 2, TMP_REGISTER, 0, src, srcw); |
| 880 | FAIL_IF(!code); |
| 881 | *code++ = 0x0f; |
| 882 | *code = 0xbd; |
| 883 | |
| 884 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 885 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) |
| 886 | dst_r = dst; |
| 887 | else { |
| 888 | /* Find an unused temporary register. */ |
| 889 | if ((dst & 0xf) != SLJIT_TEMPORARY_REG1 && (dst & 0xf0) != (SLJIT_TEMPORARY_REG1 << 4)) |
| 890 | dst_r = SLJIT_TEMPORARY_REG1; |
| 891 | else if ((dst & 0xf) != SLJIT_TEMPORARY_REG2 && (dst & 0xf0) != (SLJIT_TEMPORARY_REG2 << 4)) |
| 892 | dst_r = SLJIT_TEMPORARY_REG2; |
| 893 | else |
| 894 | dst_r = SLJIT_TEMPORARY_REG3; |
| 895 | EMIT_MOV(compiler, dst, dstw, dst_r, 0); |
| 896 | } |
| 897 | EMIT_MOV(compiler, dst_r, 0, SLJIT_IMM, 32 + 31); |
| 898 | #else |
| 899 | dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) ? dst : TMP_REG2; |
| 900 | compiler->mode32 = 0; |
| 901 | EMIT_MOV(compiler, dst_r, 0, SLJIT_IMM, !(op & SLJIT_INT_OP) ? 64 + 63 : 32 + 31); |
| 902 | compiler->mode32 = op & SLJIT_INT_OP; |
| 903 | #endif |
| 904 | |
| 905 | code = emit_x86_instruction(compiler, 2, dst_r, 0, TMP_REGISTER, 0); |
| 906 | FAIL_IF(!code); |
| 907 | *code++ = 0x0f; |
| 908 | *code = 0x45; |
| 909 | |
| 910 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 911 | code = emit_x86_instruction(compiler, 1 | EX86_BIN_INS, SLJIT_IMM, 31, dst_r, 0); |
| 912 | #else |
| 913 | code = emit_x86_instruction(compiler, 1 | EX86_BIN_INS, SLJIT_IMM, !(op & SLJIT_INT_OP) ? 63 : 31, dst_r, 0); |
| 914 | #endif |
| 915 | FAIL_IF(!code); |
| 916 | *(code + 1) |= 0x6 << 3; |
| 917 | |
| 918 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 919 | if (dst & SLJIT_MEM) { |
| 920 | code = emit_x86_instruction(compiler, 1, dst_r, 0, dst, dstw); |
| 921 | FAIL_IF(!code); |
| 922 | *code = 0x87; |
| 923 | } |
| 924 | #else |
| 925 | if (dst & SLJIT_MEM) |
| 926 | EMIT_MOV(compiler, dst, dstw, TMP_REG2, 0); |
| 927 | #endif |
| 928 | return SLJIT_SUCCESS; |
| 929 | } |
| 930 | |
| 931 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op, |
| 932 | int dst, sljit_w dstw, |
| 933 | int src, sljit_w srcw) |
| 934 | { |
| 935 | sljit_ub* code; |
| 936 | int update = 0; |
| 937 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 938 | int dst_is_ereg = 0; |
| 939 | int src_is_ereg = 0; |
| 940 | #else |
| 941 | #define src_is_ereg 0 |
| 942 | #endif |
| 943 | |
| 944 | CHECK_ERROR(); |
| 945 | check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw); |
| 946 | |
| 947 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 948 | compiler->mode32 = op & SLJIT_INT_OP; |
| 949 | #endif |
| 950 | CHECK_EXTRA_REGS(dst, dstw, dst_is_ereg = 1); |
| 951 | CHECK_EXTRA_REGS(src, srcw, src_is_ereg = 1); |
| 952 | |
| 953 | if (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI) { |
| 954 | op = GET_OPCODE(op); |
| 955 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 956 | compiler->mode32 = 0; |
| 957 | #endif |
| 958 | |
| 959 | SLJIT_COMPILE_ASSERT(SLJIT_MOV + 7 == SLJIT_MOVU, movu_offset); |
| 960 | if (op >= SLJIT_MOVU) { |
| 961 | update = 1; |
| 962 | op -= 7; |
| 963 | } |
| 964 | |
| 965 | if (src & SLJIT_IMM) { |
| 966 | switch (op) { |
| 967 | case SLJIT_MOV_UB: |
| 968 | srcw = (unsigned char)srcw; |
| 969 | break; |
| 970 | case SLJIT_MOV_SB: |
| 971 | srcw = (signed char)srcw; |
| 972 | break; |
| 973 | case SLJIT_MOV_UH: |
| 974 | srcw = (unsigned short)srcw; |
| 975 | break; |
| 976 | case SLJIT_MOV_SH: |
| 977 | srcw = (signed short)srcw; |
| 978 | break; |
| 979 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 980 | case SLJIT_MOV_UI: |
| 981 | srcw = (unsigned int)srcw; |
| 982 | break; |
| 983 | case SLJIT_MOV_SI: |
| 984 | srcw = (signed int)srcw; |
| 985 | break; |
| 986 | #endif |
| 987 | } |
| 988 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 989 | if (SLJIT_UNLIKELY(dst_is_ereg)) |
| 990 | return emit_mov(compiler, dst, dstw, src, srcw); |
| 991 | #endif |
| 992 | } |
| 993 | |
| 994 | if (SLJIT_UNLIKELY(update) && (src & SLJIT_MEM) && !src_is_ereg && (src & 0xf) && (srcw != 0 || (src & 0xf0) != 0)) { |
| 995 | code = emit_x86_instruction(compiler, 1, src & 0xf, 0, src, srcw); |
| 996 | FAIL_IF(!code); |
| 997 | *code = 0x8d; |
| 998 | src &= SLJIT_MEM | 0xf; |
| 999 | srcw = 0; |
| 1000 | } |
| 1001 | |
| 1002 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 1003 | if (SLJIT_UNLIKELY(dst_is_ereg) && (!(op == SLJIT_MOV || op == SLJIT_MOV_UI || op == SLJIT_MOV_SI) || (src & SLJIT_MEM))) { |
| 1004 | SLJIT_ASSERT(dst == SLJIT_MEM1(SLJIT_LOCALS_REG)); |
| 1005 | dst = TMP_REGISTER; |
| 1006 | } |
| 1007 | #endif |
| 1008 | |
| 1009 | switch (op) { |
| 1010 | case SLJIT_MOV: |
| 1011 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 1012 | case SLJIT_MOV_UI: |
| 1013 | case SLJIT_MOV_SI: |
| 1014 | #endif |
| 1015 | FAIL_IF(emit_mov(compiler, dst, dstw, src, srcw)); |
| 1016 | break; |
| 1017 | case SLJIT_MOV_UB: |
| 1018 | FAIL_IF(emit_mov_byte(compiler, 0, dst, dstw, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw)); |
| 1019 | break; |
| 1020 | case SLJIT_MOV_SB: |
| 1021 | FAIL_IF(emit_mov_byte(compiler, 1, dst, dstw, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw)); |
| 1022 | break; |
| 1023 | case SLJIT_MOV_UH: |
| 1024 | FAIL_IF(emit_mov_half(compiler, 0, dst, dstw, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw)); |
| 1025 | break; |
| 1026 | case SLJIT_MOV_SH: |
| 1027 | FAIL_IF(emit_mov_half(compiler, 1, dst, dstw, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw)); |
| 1028 | break; |
| 1029 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1030 | case SLJIT_MOV_UI: |
| 1031 | FAIL_IF(emit_mov_int(compiler, 0, dst, dstw, src, (src & SLJIT_IMM) ? (unsigned int)srcw : srcw)); |
| 1032 | break; |
| 1033 | case SLJIT_MOV_SI: |
| 1034 | FAIL_IF(emit_mov_int(compiler, 1, dst, dstw, src, (src & SLJIT_IMM) ? (signed int)srcw : srcw)); |
| 1035 | break; |
| 1036 | #endif |
| 1037 | } |
| 1038 | |
| 1039 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 1040 | if (SLJIT_UNLIKELY(dst_is_ereg) && dst == TMP_REGISTER) |
| 1041 | return emit_mov(compiler, SLJIT_MEM1(SLJIT_LOCALS_REG), dstw, TMP_REGISTER, 0); |
| 1042 | #endif |
| 1043 | |
| 1044 | if (SLJIT_UNLIKELY(update) && (dst & SLJIT_MEM) && (dst & 0xf) && (dstw != 0 || (dst & 0xf0) != 0)) { |
| 1045 | code = emit_x86_instruction(compiler, 1, dst & 0xf, 0, dst, dstw); |
| 1046 | FAIL_IF(!code); |
| 1047 | *code = 0x8d; |
| 1048 | } |
| 1049 | return SLJIT_SUCCESS; |
| 1050 | } |
| 1051 | |
| 1052 | if (SLJIT_UNLIKELY(GET_FLAGS(op))) |
| 1053 | compiler->flags_saved = 0; |
| 1054 | |
| 1055 | switch (GET_OPCODE(op)) { |
| 1056 | case SLJIT_NOT: |
| 1057 | if (SLJIT_UNLIKELY(op & SLJIT_SET_E)) |
| 1058 | return emit_not_with_flags(compiler, dst, dstw, src, srcw); |
| 1059 | return emit_unary(compiler, 0x2, dst, dstw, src, srcw); |
| 1060 | |
| 1061 | case SLJIT_NEG: |
| 1062 | if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS) && !compiler->flags_saved) |
| 1063 | FAIL_IF(emit_save_flags(compiler)); |
| 1064 | return emit_unary(compiler, 0x3, dst, dstw, src, srcw); |
| 1065 | |
| 1066 | case SLJIT_CLZ: |
| 1067 | if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS) && !compiler->flags_saved) |
| 1068 | FAIL_IF(emit_save_flags(compiler)); |
| 1069 | return emit_clz(compiler, op, dst, dstw, src, srcw); |
| 1070 | } |
| 1071 | |
| 1072 | return SLJIT_SUCCESS; |
| 1073 | |
| 1074 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1075 | #undef src_is_ereg |
| 1076 | #endif |
| 1077 | } |
| 1078 | |
| 1079 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1080 | |
| 1081 | #define BINARY_IMM(_op_imm_, _op_mr_, immw, arg, argw) \ |
| 1082 | if (IS_HALFWORD(immw) || compiler->mode32) { \ |
| 1083 | code = emit_x86_instruction(compiler, 1 | EX86_BIN_INS, SLJIT_IMM, immw, arg, argw); \ |
| 1084 | FAIL_IF(!code); \ |
| 1085 | *(code + 1) |= (_op_imm_); \ |
| 1086 | } \ |
| 1087 | else { \ |
| 1088 | FAIL_IF(emit_load_imm64(compiler, TMP_REG2, immw)); \ |
| 1089 | code = emit_x86_instruction(compiler, 1, TMP_REG2, 0, arg, argw); \ |
| 1090 | FAIL_IF(!code); \ |
| 1091 | *code = (_op_mr_); \ |
| 1092 | } |
| 1093 | |
| 1094 | #define BINARY_EAX_IMM(_op_eax_imm_, immw) \ |
| 1095 | FAIL_IF(emit_do_imm32(compiler, (!compiler->mode32) ? REX_W : 0, (_op_eax_imm_), immw)) |
| 1096 | |
| 1097 | #else |
| 1098 | |
| 1099 | #define BINARY_IMM(_op_imm_, _op_mr_, immw, arg, argw) \ |
| 1100 | code = emit_x86_instruction(compiler, 1 | EX86_BIN_INS, SLJIT_IMM, immw, arg, argw); \ |
| 1101 | FAIL_IF(!code); \ |
| 1102 | *(code + 1) |= (_op_imm_); |
| 1103 | |
| 1104 | #define BINARY_EAX_IMM(_op_eax_imm_, immw) \ |
| 1105 | FAIL_IF(emit_do_imm(compiler, (_op_eax_imm_), immw)) |
| 1106 | |
| 1107 | #endif |
| 1108 | |
| 1109 | static int emit_cum_binary(struct sljit_compiler *compiler, |
| 1110 | sljit_ub op_rm, sljit_ub op_mr, sljit_ub op_imm, sljit_ub op_eax_imm, |
| 1111 | int dst, sljit_w dstw, |
| 1112 | int src1, sljit_w src1w, |
| 1113 | int src2, sljit_w src2w) |
| 1114 | { |
| 1115 | sljit_ub* code; |
| 1116 | |
| 1117 | if (dst == SLJIT_UNUSED) { |
| 1118 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1119 | if (src2 & SLJIT_IMM) { |
| 1120 | BINARY_IMM(op_imm, op_mr, src2w, TMP_REGISTER, 0); |
| 1121 | } |
| 1122 | else { |
| 1123 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src2, src2w); |
| 1124 | FAIL_IF(!code); |
| 1125 | *code = op_rm; |
| 1126 | } |
| 1127 | return SLJIT_SUCCESS; |
| 1128 | } |
| 1129 | |
| 1130 | if (dst == src1 && dstw == src1w) { |
| 1131 | if (src2 & SLJIT_IMM) { |
| 1132 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1133 | if ((dst == SLJIT_TEMPORARY_REG1) && (src2w > 127 || src2w < -128) && (compiler->mode32 || IS_HALFWORD(src2w))) { |
| 1134 | #else |
| 1135 | if ((dst == SLJIT_TEMPORARY_REG1) && (src2w > 127 || src2w < -128)) { |
| 1136 | #endif |
| 1137 | BINARY_EAX_IMM(op_eax_imm, src2w); |
| 1138 | } |
| 1139 | else { |
| 1140 | BINARY_IMM(op_imm, op_mr, src2w, dst, dstw); |
| 1141 | } |
| 1142 | } |
| 1143 | else if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) { |
| 1144 | code = emit_x86_instruction(compiler, 1, dst, dstw, src2, src2w); |
| 1145 | FAIL_IF(!code); |
| 1146 | *code = op_rm; |
| 1147 | } |
| 1148 | else if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= TMP_REGISTER) { |
| 1149 | /* Special exception for sljit_emit_cond_value. */ |
| 1150 | code = emit_x86_instruction(compiler, 1, src2, src2w, dst, dstw); |
| 1151 | FAIL_IF(!code); |
| 1152 | *code = op_mr; |
| 1153 | } |
| 1154 | else { |
| 1155 | EMIT_MOV(compiler, TMP_REGISTER, 0, src2, src2w); |
| 1156 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, dst, dstw); |
| 1157 | FAIL_IF(!code); |
| 1158 | *code = op_mr; |
| 1159 | } |
| 1160 | return SLJIT_SUCCESS; |
| 1161 | } |
| 1162 | |
| 1163 | /* Only for cumulative operations. */ |
| 1164 | if (dst == src2 && dstw == src2w) { |
| 1165 | if (src1 & SLJIT_IMM) { |
| 1166 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1167 | if ((dst == SLJIT_TEMPORARY_REG1) && (src1w > 127 || src1w < -128) && (compiler->mode32 || IS_HALFWORD(src1w))) { |
| 1168 | #else |
| 1169 | if ((dst == SLJIT_TEMPORARY_REG1) && (src1w > 127 || src1w < -128)) { |
| 1170 | #endif |
| 1171 | BINARY_EAX_IMM(op_eax_imm, src1w); |
| 1172 | } |
| 1173 | else { |
| 1174 | BINARY_IMM(op_imm, op_mr, src1w, dst, dstw); |
| 1175 | } |
| 1176 | } |
| 1177 | else if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) { |
| 1178 | code = emit_x86_instruction(compiler, 1, dst, dstw, src1, src1w); |
| 1179 | FAIL_IF(!code); |
| 1180 | *code = op_rm; |
| 1181 | } |
| 1182 | else if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= SLJIT_NO_REGISTERS) { |
| 1183 | code = emit_x86_instruction(compiler, 1, src1, src1w, dst, dstw); |
| 1184 | FAIL_IF(!code); |
| 1185 | *code = op_mr; |
| 1186 | } |
| 1187 | else { |
| 1188 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1189 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, dst, dstw); |
| 1190 | FAIL_IF(!code); |
| 1191 | *code = op_mr; |
| 1192 | } |
| 1193 | return SLJIT_SUCCESS; |
| 1194 | } |
| 1195 | |
| 1196 | /* General version. */ |
| 1197 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) { |
| 1198 | EMIT_MOV(compiler, dst, 0, src1, src1w); |
| 1199 | if (src2 & SLJIT_IMM) { |
| 1200 | BINARY_IMM(op_imm, op_mr, src2w, dst, 0); |
| 1201 | } |
| 1202 | else { |
| 1203 | code = emit_x86_instruction(compiler, 1, dst, 0, src2, src2w); |
| 1204 | FAIL_IF(!code); |
| 1205 | *code = op_rm; |
| 1206 | } |
| 1207 | } |
| 1208 | else { |
| 1209 | /* This version requires less memory writing. */ |
| 1210 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1211 | if (src2 & SLJIT_IMM) { |
| 1212 | BINARY_IMM(op_imm, op_mr, src2w, TMP_REGISTER, 0); |
| 1213 | } |
| 1214 | else { |
| 1215 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src2, src2w); |
| 1216 | FAIL_IF(!code); |
| 1217 | *code = op_rm; |
| 1218 | } |
| 1219 | EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0); |
| 1220 | } |
| 1221 | |
| 1222 | return SLJIT_SUCCESS; |
| 1223 | } |
| 1224 | |
| 1225 | static int emit_non_cum_binary(struct sljit_compiler *compiler, |
| 1226 | sljit_ub op_rm, sljit_ub op_mr, sljit_ub op_imm, sljit_ub op_eax_imm, |
| 1227 | int dst, sljit_w dstw, |
| 1228 | int src1, sljit_w src1w, |
| 1229 | int src2, sljit_w src2w) |
| 1230 | { |
| 1231 | sljit_ub* code; |
| 1232 | |
| 1233 | if (dst == SLJIT_UNUSED) { |
| 1234 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1235 | if (src2 & SLJIT_IMM) { |
| 1236 | BINARY_IMM(op_imm, op_mr, src2w, TMP_REGISTER, 0); |
| 1237 | } |
| 1238 | else { |
| 1239 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src2, src2w); |
| 1240 | FAIL_IF(!code); |
| 1241 | *code = op_rm; |
| 1242 | } |
| 1243 | return SLJIT_SUCCESS; |
| 1244 | } |
| 1245 | |
| 1246 | if (dst == src1 && dstw == src1w) { |
| 1247 | if (src2 & SLJIT_IMM) { |
| 1248 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1249 | if ((dst == SLJIT_TEMPORARY_REG1) && (src2w > 127 || src2w < -128) && (compiler->mode32 || IS_HALFWORD(src2w))) { |
| 1250 | #else |
| 1251 | if ((dst == SLJIT_TEMPORARY_REG1) && (src2w > 127 || src2w < -128)) { |
| 1252 | #endif |
| 1253 | BINARY_EAX_IMM(op_eax_imm, src2w); |
| 1254 | } |
| 1255 | else { |
| 1256 | BINARY_IMM(op_imm, op_mr, src2w, dst, dstw); |
| 1257 | } |
| 1258 | } |
| 1259 | else if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) { |
| 1260 | code = emit_x86_instruction(compiler, 1, dst, dstw, src2, src2w); |
| 1261 | FAIL_IF(!code); |
| 1262 | *code = op_rm; |
| 1263 | } |
| 1264 | else if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= SLJIT_NO_REGISTERS) { |
| 1265 | code = emit_x86_instruction(compiler, 1, src2, src2w, dst, dstw); |
| 1266 | FAIL_IF(!code); |
| 1267 | *code = op_mr; |
| 1268 | } |
| 1269 | else { |
| 1270 | EMIT_MOV(compiler, TMP_REGISTER, 0, src2, src2w); |
| 1271 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, dst, dstw); |
| 1272 | FAIL_IF(!code); |
| 1273 | *code = op_mr; |
| 1274 | } |
| 1275 | return SLJIT_SUCCESS; |
| 1276 | } |
| 1277 | |
| 1278 | /* General version. */ |
| 1279 | if ((dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) && dst != src2) { |
| 1280 | EMIT_MOV(compiler, dst, 0, src1, src1w); |
| 1281 | if (src2 & SLJIT_IMM) { |
| 1282 | BINARY_IMM(op_imm, op_mr, src2w, dst, 0); |
| 1283 | } |
| 1284 | else { |
| 1285 | code = emit_x86_instruction(compiler, 1, dst, 0, src2, src2w); |
| 1286 | FAIL_IF(!code); |
| 1287 | *code = op_rm; |
| 1288 | } |
| 1289 | } |
| 1290 | else { |
| 1291 | /* This version requires less memory writing. */ |
| 1292 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1293 | if (src2 & SLJIT_IMM) { |
| 1294 | BINARY_IMM(op_imm, op_mr, src2w, TMP_REGISTER, 0); |
| 1295 | } |
| 1296 | else { |
| 1297 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src2, src2w); |
| 1298 | FAIL_IF(!code); |
| 1299 | *code = op_rm; |
| 1300 | } |
| 1301 | EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0); |
| 1302 | } |
| 1303 | |
| 1304 | return SLJIT_SUCCESS; |
| 1305 | } |
| 1306 | |
| 1307 | static int emit_mul(struct sljit_compiler *compiler, |
| 1308 | int dst, sljit_w dstw, |
| 1309 | int src1, sljit_w src1w, |
| 1310 | int src2, sljit_w src2w) |
| 1311 | { |
| 1312 | sljit_ub* code; |
| 1313 | int dst_r; |
| 1314 | |
| 1315 | dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REGISTER; |
| 1316 | |
| 1317 | /* Register destination. */ |
| 1318 | if (dst_r == src1 && !(src2 & SLJIT_IMM)) { |
| 1319 | code = emit_x86_instruction(compiler, 2, dst_r, 0, src2, src2w); |
| 1320 | FAIL_IF(!code); |
| 1321 | *code++ = 0x0f; |
| 1322 | *code = 0xaf; |
| 1323 | } |
| 1324 | else if (dst_r == src2 && !(src1 & SLJIT_IMM)) { |
| 1325 | code = emit_x86_instruction(compiler, 2, dst_r, 0, src1, src1w); |
| 1326 | FAIL_IF(!code); |
| 1327 | *code++ = 0x0f; |
| 1328 | *code = 0xaf; |
| 1329 | } |
| 1330 | else if (src1 & SLJIT_IMM) { |
| 1331 | if (src2 & SLJIT_IMM) { |
| 1332 | EMIT_MOV(compiler, dst_r, 0, SLJIT_IMM, src2w); |
| 1333 | src2 = dst_r; |
| 1334 | src2w = 0; |
| 1335 | } |
| 1336 | |
| 1337 | if (src1w <= 127 && src1w >= -128) { |
| 1338 | code = emit_x86_instruction(compiler, 1, dst_r, 0, src2, src2w); |
| 1339 | FAIL_IF(!code); |
| 1340 | *code = 0x6b; |
| 1341 | code = (sljit_ub*)ensure_buf(compiler, 1 + 1); |
| 1342 | FAIL_IF(!code); |
| 1343 | INC_CSIZE(1); |
| 1344 | *code = (sljit_b)src1w; |
| 1345 | } |
| 1346 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 1347 | else { |
| 1348 | code = emit_x86_instruction(compiler, 1, dst_r, 0, src2, src2w); |
| 1349 | FAIL_IF(!code); |
| 1350 | *code = 0x69; |
| 1351 | code = (sljit_ub*)ensure_buf(compiler, 1 + 4); |
| 1352 | FAIL_IF(!code); |
| 1353 | INC_CSIZE(4); |
| 1354 | *(sljit_w*)code = src1w; |
| 1355 | } |
| 1356 | #else |
| 1357 | else if (IS_HALFWORD(src1w)) { |
| 1358 | code = emit_x86_instruction(compiler, 1, dst_r, 0, src2, src2w); |
| 1359 | FAIL_IF(!code); |
| 1360 | *code = 0x69; |
| 1361 | code = (sljit_ub*)ensure_buf(compiler, 1 + 4); |
| 1362 | FAIL_IF(!code); |
| 1363 | INC_CSIZE(4); |
| 1364 | *(sljit_hw*)code = (sljit_hw)src1w; |
| 1365 | } |
| 1366 | else { |
| 1367 | EMIT_MOV(compiler, TMP_REG2, 0, SLJIT_IMM, src1w); |
| 1368 | if (dst_r != src2) |
| 1369 | EMIT_MOV(compiler, dst_r, 0, src2, src2w); |
| 1370 | code = emit_x86_instruction(compiler, 2, dst_r, 0, TMP_REG2, 0); |
| 1371 | FAIL_IF(!code); |
| 1372 | *code++ = 0x0f; |
| 1373 | *code = 0xaf; |
| 1374 | } |
| 1375 | #endif |
| 1376 | } |
| 1377 | else if (src2 & SLJIT_IMM) { |
| 1378 | /* Note: src1 is NOT immediate. */ |
| 1379 | |
| 1380 | if (src2w <= 127 && src2w >= -128) { |
| 1381 | code = emit_x86_instruction(compiler, 1, dst_r, 0, src1, src1w); |
| 1382 | FAIL_IF(!code); |
| 1383 | *code = 0x6b; |
| 1384 | code = (sljit_ub*)ensure_buf(compiler, 1 + 1); |
| 1385 | FAIL_IF(!code); |
| 1386 | INC_CSIZE(1); |
| 1387 | *code = (sljit_b)src2w; |
| 1388 | } |
| 1389 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 1390 | else { |
| 1391 | code = emit_x86_instruction(compiler, 1, dst_r, 0, src1, src1w); |
| 1392 | FAIL_IF(!code); |
| 1393 | *code = 0x69; |
| 1394 | code = (sljit_ub*)ensure_buf(compiler, 1 + 4); |
| 1395 | FAIL_IF(!code); |
| 1396 | INC_CSIZE(4); |
| 1397 | *(sljit_w*)code = src2w; |
| 1398 | } |
| 1399 | #else |
| 1400 | else if (IS_HALFWORD(src2w)) { |
| 1401 | code = emit_x86_instruction(compiler, 1, dst_r, 0, src1, src1w); |
| 1402 | FAIL_IF(!code); |
| 1403 | *code = 0x69; |
| 1404 | code = (sljit_ub*)ensure_buf(compiler, 1 + 4); |
| 1405 | FAIL_IF(!code); |
| 1406 | INC_CSIZE(4); |
| 1407 | *(sljit_hw*)code = (sljit_hw)src2w; |
| 1408 | } |
| 1409 | else { |
| 1410 | EMIT_MOV(compiler, TMP_REG2, 0, SLJIT_IMM, src1w); |
| 1411 | if (dst_r != src1) |
| 1412 | EMIT_MOV(compiler, dst_r, 0, src1, src1w); |
| 1413 | code = emit_x86_instruction(compiler, 2, dst_r, 0, TMP_REG2, 0); |
| 1414 | FAIL_IF(!code); |
| 1415 | *code++ = 0x0f; |
| 1416 | *code = 0xaf; |
| 1417 | } |
| 1418 | #endif |
| 1419 | } |
| 1420 | else { |
| 1421 | /* Neither argument is immediate. */ |
| 1422 | if (ADDRESSING_DEPENDS_ON(src2, dst_r)) |
| 1423 | dst_r = TMP_REGISTER; |
| 1424 | EMIT_MOV(compiler, dst_r, 0, src1, src1w); |
| 1425 | code = emit_x86_instruction(compiler, 2, dst_r, 0, src2, src2w); |
| 1426 | FAIL_IF(!code); |
| 1427 | *code++ = 0x0f; |
| 1428 | *code = 0xaf; |
| 1429 | } |
| 1430 | |
| 1431 | if (dst_r == TMP_REGISTER) |
| 1432 | EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0); |
| 1433 | |
| 1434 | return SLJIT_SUCCESS; |
| 1435 | } |
| 1436 | |
| 1437 | static int emit_lea_binary(struct sljit_compiler *compiler, |
| 1438 | int dst, sljit_w dstw, |
| 1439 | int src1, sljit_w src1w, |
| 1440 | int src2, sljit_w src2w) |
| 1441 | { |
| 1442 | sljit_ub* code; |
| 1443 | int dst_r, done = 0; |
| 1444 | |
| 1445 | /* These cases better be left to handled by normal way. */ |
| 1446 | if (dst == src1 && dstw == src1w) |
| 1447 | return SLJIT_ERR_UNSUPPORTED; |
| 1448 | if (dst == src2 && dstw == src2w) |
| 1449 | return SLJIT_ERR_UNSUPPORTED; |
| 1450 | |
| 1451 | dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REGISTER; |
| 1452 | |
| 1453 | if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= SLJIT_NO_REGISTERS) { |
| 1454 | if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= SLJIT_NO_REGISTERS) { |
| 1455 | /* It is not possible to be both SLJIT_LOCALS_REG. */ |
| 1456 | if (src1 != SLJIT_LOCALS_REG || src2 != SLJIT_LOCALS_REG) { |
| 1457 | code = emit_x86_instruction(compiler, 1, dst_r, 0, SLJIT_MEM2(src1, src2), 0); |
| 1458 | FAIL_IF(!code); |
| 1459 | *code = 0x8d; |
| 1460 | done = 1; |
| 1461 | } |
| 1462 | } |
| 1463 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1464 | if ((src2 & SLJIT_IMM) && (compiler->mode32 || IS_HALFWORD(src2w))) { |
| 1465 | code = emit_x86_instruction(compiler, 1, dst_r, 0, SLJIT_MEM1(src1), (int)src2w); |
| 1466 | #else |
| 1467 | if (src2 & SLJIT_IMM) { |
| 1468 | code = emit_x86_instruction(compiler, 1, dst_r, 0, SLJIT_MEM1(src1), src2w); |
| 1469 | #endif |
| 1470 | FAIL_IF(!code); |
| 1471 | *code = 0x8d; |
| 1472 | done = 1; |
| 1473 | } |
| 1474 | } |
| 1475 | else if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= SLJIT_NO_REGISTERS) { |
| 1476 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1477 | if ((src1 & SLJIT_IMM) && (compiler->mode32 || IS_HALFWORD(src1w))) { |
| 1478 | code = emit_x86_instruction(compiler, 1, dst_r, 0, SLJIT_MEM1(src2), (int)src1w); |
| 1479 | #else |
| 1480 | if (src1 & SLJIT_IMM) { |
| 1481 | code = emit_x86_instruction(compiler, 1, dst_r, 0, SLJIT_MEM1(src2), src1w); |
| 1482 | #endif |
| 1483 | FAIL_IF(!code); |
| 1484 | *code = 0x8d; |
| 1485 | done = 1; |
| 1486 | } |
| 1487 | } |
| 1488 | |
| 1489 | if (done) { |
| 1490 | if (dst_r == TMP_REGISTER) |
| 1491 | return emit_mov(compiler, dst, dstw, TMP_REGISTER, 0); |
| 1492 | return SLJIT_SUCCESS; |
| 1493 | } |
| 1494 | return SLJIT_ERR_UNSUPPORTED; |
| 1495 | } |
| 1496 | |
| 1497 | static int emit_cmp_binary(struct sljit_compiler *compiler, |
| 1498 | int src1, sljit_w src1w, |
| 1499 | int src2, sljit_w src2w) |
| 1500 | { |
| 1501 | sljit_ub* code; |
| 1502 | |
| 1503 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1504 | if (src1 == SLJIT_TEMPORARY_REG1 && (src2 & SLJIT_IMM) && (src2w > 127 || src2w < -128) && (compiler->mode32 || IS_HALFWORD(src2w))) { |
| 1505 | #else |
| 1506 | if (src1 == SLJIT_TEMPORARY_REG1 && (src2 & SLJIT_IMM) && (src2w > 127 || src2w < -128)) { |
| 1507 | #endif |
| 1508 | BINARY_EAX_IMM(0x3d, src2w); |
| 1509 | return SLJIT_SUCCESS; |
| 1510 | } |
| 1511 | |
| 1512 | if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= SLJIT_NO_REGISTERS) { |
| 1513 | if (src2 & SLJIT_IMM) { |
| 1514 | BINARY_IMM(0x7 << 3, 0x39, src2w, src1, 0); |
| 1515 | } |
| 1516 | else { |
| 1517 | code = emit_x86_instruction(compiler, 1, src1, 0, src2, src2w); |
| 1518 | FAIL_IF(!code); |
| 1519 | *code = 0x3b; |
| 1520 | } |
| 1521 | return SLJIT_SUCCESS; |
| 1522 | } |
| 1523 | |
| 1524 | if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= SLJIT_NO_REGISTERS && !(src1 & SLJIT_IMM)) { |
| 1525 | code = emit_x86_instruction(compiler, 1, src2, 0, src1, src1w); |
| 1526 | FAIL_IF(!code); |
| 1527 | *code = 0x39; |
| 1528 | return SLJIT_SUCCESS; |
| 1529 | } |
| 1530 | |
| 1531 | if (src2 & SLJIT_IMM) { |
| 1532 | if (src1 & SLJIT_IMM) { |
| 1533 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1534 | src1 = TMP_REGISTER; |
| 1535 | src1w = 0; |
| 1536 | } |
| 1537 | BINARY_IMM(0x7 << 3, 0x39, src2w, src1, src1w); |
| 1538 | } |
| 1539 | else { |
| 1540 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1541 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src2, src2w); |
| 1542 | FAIL_IF(!code); |
| 1543 | *code = 0x3b; |
| 1544 | } |
| 1545 | return SLJIT_SUCCESS; |
| 1546 | } |
| 1547 | |
| 1548 | static int emit_test_binary(struct sljit_compiler *compiler, |
| 1549 | int src1, sljit_w src1w, |
| 1550 | int src2, sljit_w src2w) |
| 1551 | { |
| 1552 | sljit_ub* code; |
| 1553 | |
| 1554 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1555 | if (src1 == SLJIT_TEMPORARY_REG1 && (src2 & SLJIT_IMM) && (src2w > 127 || src2w < -128) && (compiler->mode32 || IS_HALFWORD(src2w))) { |
| 1556 | #else |
| 1557 | if (src1 == SLJIT_TEMPORARY_REG1 && (src2 & SLJIT_IMM) && (src2w > 127 || src2w < -128)) { |
| 1558 | #endif |
| 1559 | BINARY_EAX_IMM(0xa9, src2w); |
| 1560 | return SLJIT_SUCCESS; |
| 1561 | } |
| 1562 | |
| 1563 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1564 | if (src2 == SLJIT_TEMPORARY_REG1 && (src2 & SLJIT_IMM) && (src1w > 127 || src1w < -128) && (compiler->mode32 || IS_HALFWORD(src1w))) { |
| 1565 | #else |
| 1566 | if (src2 == SLJIT_TEMPORARY_REG1 && (src1 & SLJIT_IMM) && (src1w > 127 || src1w < -128)) { |
| 1567 | #endif |
| 1568 | BINARY_EAX_IMM(0xa9, src1w); |
| 1569 | return SLJIT_SUCCESS; |
| 1570 | } |
| 1571 | |
| 1572 | if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= SLJIT_NO_REGISTERS) { |
| 1573 | if (src2 & SLJIT_IMM) { |
| 1574 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1575 | if (IS_HALFWORD(src2w) || compiler->mode32) { |
| 1576 | code = emit_x86_instruction(compiler, 1, SLJIT_IMM, src2w, src1, 0); |
| 1577 | FAIL_IF(!code); |
| 1578 | *code = 0xf7; |
| 1579 | } |
| 1580 | else { |
| 1581 | FAIL_IF(emit_load_imm64(compiler, TMP_REG2, src2w)); |
| 1582 | code = emit_x86_instruction(compiler, 1, TMP_REG2, 0, src1, 0); |
| 1583 | FAIL_IF(!code); |
| 1584 | *code = 0x85; |
| 1585 | } |
| 1586 | #else |
| 1587 | code = emit_x86_instruction(compiler, 1, SLJIT_IMM, src2w, src1, 0); |
| 1588 | FAIL_IF(!code); |
| 1589 | *code = 0xf7; |
| 1590 | #endif |
| 1591 | } |
| 1592 | else { |
| 1593 | code = emit_x86_instruction(compiler, 1, src1, 0, src2, src2w); |
| 1594 | FAIL_IF(!code); |
| 1595 | *code = 0x85; |
| 1596 | } |
| 1597 | return SLJIT_SUCCESS; |
| 1598 | } |
| 1599 | |
| 1600 | if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= SLJIT_NO_REGISTERS) { |
| 1601 | if (src1 & SLJIT_IMM) { |
| 1602 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1603 | if (IS_HALFWORD(src1w) || compiler->mode32) { |
| 1604 | code = emit_x86_instruction(compiler, 1, SLJIT_IMM, src1w, src2, 0); |
| 1605 | FAIL_IF(!code); |
| 1606 | *code = 0xf7; |
| 1607 | } |
| 1608 | else { |
| 1609 | FAIL_IF(emit_load_imm64(compiler, TMP_REG2, src1w)); |
| 1610 | code = emit_x86_instruction(compiler, 1, TMP_REG2, 0, src2, 0); |
| 1611 | FAIL_IF(!code); |
| 1612 | *code = 0x85; |
| 1613 | } |
| 1614 | #else |
| 1615 | code = emit_x86_instruction(compiler, 1, src1, src1w, src2, 0); |
| 1616 | FAIL_IF(!code); |
| 1617 | *code = 0xf7; |
| 1618 | #endif |
| 1619 | } |
| 1620 | else { |
| 1621 | code = emit_x86_instruction(compiler, 1, src2, 0, src1, src1w); |
| 1622 | FAIL_IF(!code); |
| 1623 | *code = 0x85; |
| 1624 | } |
| 1625 | return SLJIT_SUCCESS; |
| 1626 | } |
| 1627 | |
| 1628 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1629 | if (src2 & SLJIT_IMM) { |
| 1630 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1631 | if (IS_HALFWORD(src2w) || compiler->mode32) { |
| 1632 | code = emit_x86_instruction(compiler, 1, SLJIT_IMM, src2w, TMP_REGISTER, 0); |
| 1633 | FAIL_IF(!code); |
| 1634 | *code = 0xf7; |
| 1635 | } |
| 1636 | else { |
| 1637 | FAIL_IF(emit_load_imm64(compiler, TMP_REG2, src2w)); |
| 1638 | code = emit_x86_instruction(compiler, 1, TMP_REG2, 0, TMP_REGISTER, 0); |
| 1639 | FAIL_IF(!code); |
| 1640 | *code = 0x85; |
| 1641 | } |
| 1642 | #else |
| 1643 | code = emit_x86_instruction(compiler, 1, SLJIT_IMM, src2w, TMP_REGISTER, 0); |
| 1644 | FAIL_IF(!code); |
| 1645 | *code = 0xf7; |
| 1646 | #endif |
| 1647 | } |
| 1648 | else { |
| 1649 | code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src2, src2w); |
| 1650 | FAIL_IF(!code); |
| 1651 | *code = 0x85; |
| 1652 | } |
| 1653 | return SLJIT_SUCCESS; |
| 1654 | } |
| 1655 | |
| 1656 | static int emit_shift(struct sljit_compiler *compiler, |
| 1657 | sljit_ub mode, |
| 1658 | int dst, sljit_w dstw, |
| 1659 | int src1, sljit_w src1w, |
| 1660 | int src2, sljit_w src2w) |
| 1661 | { |
| 1662 | sljit_ub* code; |
| 1663 | |
| 1664 | if ((src2 & SLJIT_IMM) || (src2 == SLJIT_PREF_SHIFT_REG)) { |
| 1665 | if (dst == src1 && dstw == src1w) { |
| 1666 | code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, src2, src2w, dst, dstw); |
| 1667 | FAIL_IF(!code); |
| 1668 | *code |= mode; |
| 1669 | return SLJIT_SUCCESS; |
| 1670 | } |
| 1671 | if (dst == SLJIT_UNUSED) { |
| 1672 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1673 | code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, src2, src2w, TMP_REGISTER, 0); |
| 1674 | FAIL_IF(!code); |
| 1675 | *code |= mode; |
| 1676 | return SLJIT_SUCCESS; |
| 1677 | } |
| 1678 | if (dst == SLJIT_PREF_SHIFT_REG && src2 == SLJIT_PREF_SHIFT_REG) { |
| 1679 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1680 | code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_PREF_SHIFT_REG, 0, TMP_REGISTER, 0); |
| 1681 | FAIL_IF(!code); |
| 1682 | *code |= mode; |
| 1683 | EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, TMP_REGISTER, 0); |
| 1684 | return SLJIT_SUCCESS; |
| 1685 | } |
| 1686 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) { |
| 1687 | EMIT_MOV(compiler, dst, 0, src1, src1w); |
| 1688 | code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, src2, src2w, dst, 0); |
| 1689 | FAIL_IF(!code); |
| 1690 | *code |= mode; |
| 1691 | return SLJIT_SUCCESS; |
| 1692 | } |
| 1693 | |
| 1694 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1695 | code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, src2, src2w, TMP_REGISTER, 0); |
| 1696 | FAIL_IF(!code); |
| 1697 | *code |= mode; |
| 1698 | EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0); |
| 1699 | return SLJIT_SUCCESS; |
| 1700 | } |
| 1701 | |
| 1702 | if (dst == SLJIT_PREF_SHIFT_REG) { |
| 1703 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1704 | EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, src2, src2w); |
| 1705 | code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_PREF_SHIFT_REG, 0, TMP_REGISTER, 0); |
| 1706 | FAIL_IF(!code); |
| 1707 | *code |= mode; |
| 1708 | EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, TMP_REGISTER, 0); |
| 1709 | } |
| 1710 | else if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS && dst != src2 && !ADDRESSING_DEPENDS_ON(src2, dst)) { |
| 1711 | if (src1 != dst) |
| 1712 | EMIT_MOV(compiler, dst, 0, src1, src1w); |
| 1713 | EMIT_MOV(compiler, TMP_REGISTER, 0, SLJIT_PREF_SHIFT_REG, 0); |
| 1714 | EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, src2, src2w); |
| 1715 | code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_PREF_SHIFT_REG, 0, dst, 0); |
| 1716 | FAIL_IF(!code); |
| 1717 | *code |= mode; |
| 1718 | EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, TMP_REGISTER, 0); |
| 1719 | } |
| 1720 | else { |
| 1721 | /* This case is really difficult, since ecx can be used for |
| 1722 | addressing as well, and we must ensure to work even in that case. */ |
| 1723 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1724 | EMIT_MOV(compiler, TMP_REG2, 0, SLJIT_PREF_SHIFT_REG, 0); |
| 1725 | #else |
| 1726 | /* [esp - 4] is reserved for eflags. */ |
| 1727 | EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_LOCALS_REG), -(int)(2 * sizeof(sljit_w)), SLJIT_PREF_SHIFT_REG, 0); |
| 1728 | #endif |
| 1729 | |
| 1730 | EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w); |
| 1731 | EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, src2, src2w); |
| 1732 | code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_PREF_SHIFT_REG, 0, TMP_REGISTER, 0); |
| 1733 | FAIL_IF(!code); |
| 1734 | *code |= mode; |
| 1735 | |
| 1736 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1737 | EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, TMP_REG2, 0); |
| 1738 | #else |
| 1739 | /* [esp - 4] is reserved for eflags. */ |
| 1740 | EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), -(int)(2 * sizeof(sljit_w))); |
| 1741 | #endif |
| 1742 | EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0); |
| 1743 | } |
| 1744 | |
| 1745 | return SLJIT_SUCCESS; |
| 1746 | } |
| 1747 | |
| 1748 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op, |
| 1749 | int dst, sljit_w dstw, |
| 1750 | int src1, sljit_w src1w, |
| 1751 | int src2, sljit_w src2w) |
| 1752 | { |
| 1753 | CHECK_ERROR(); |
| 1754 | check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w); |
| 1755 | |
| 1756 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1757 | compiler->mode32 = op & SLJIT_INT_OP; |
| 1758 | #endif |
| 1759 | CHECK_EXTRA_REGS(dst, dstw, (void)0); |
| 1760 | CHECK_EXTRA_REGS(src1, src1w, (void)0); |
| 1761 | CHECK_EXTRA_REGS(src2, src2w, (void)0); |
| 1762 | |
| 1763 | if (GET_OPCODE(op) >= SLJIT_MUL) { |
| 1764 | if (SLJIT_UNLIKELY(GET_FLAGS(op))) |
| 1765 | compiler->flags_saved = 0; |
| 1766 | else if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS) && !compiler->flags_saved) |
| 1767 | FAIL_IF(emit_save_flags(compiler)); |
| 1768 | } |
| 1769 | |
| 1770 | switch (GET_OPCODE(op)) { |
| 1771 | case SLJIT_ADD: |
| 1772 | if (!GET_FLAGS(op)) { |
| 1773 | if (emit_lea_binary(compiler, dst, dstw, src1, src1w, src2, src2w) != SLJIT_ERR_UNSUPPORTED) |
| 1774 | return compiler->error; |
| 1775 | } |
| 1776 | else |
| 1777 | compiler->flags_saved = 0; |
| 1778 | if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS) && !compiler->flags_saved) |
| 1779 | FAIL_IF(emit_save_flags(compiler)); |
| 1780 | return emit_cum_binary(compiler, 0x03, 0x01, 0x0 << 3, 0x05, |
| 1781 | dst, dstw, src1, src1w, src2, src2w); |
| 1782 | case SLJIT_ADDC: |
| 1783 | if (SLJIT_UNLIKELY(compiler->flags_saved)) /* C flag must be restored. */ |
| 1784 | FAIL_IF(emit_restore_flags(compiler, 1)); |
| 1785 | else if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS)) |
| 1786 | FAIL_IF(emit_save_flags(compiler)); |
| 1787 | if (SLJIT_UNLIKELY(GET_FLAGS(op))) |
| 1788 | compiler->flags_saved = 0; |
| 1789 | return emit_cum_binary(compiler, 0x13, 0x11, 0x2 << 3, 0x15, |
| 1790 | dst, dstw, src1, src1w, src2, src2w); |
| 1791 | case SLJIT_SUB: |
| 1792 | if (!GET_FLAGS(op)) { |
| 1793 | if ((src2 & SLJIT_IMM) && emit_lea_binary(compiler, dst, dstw, src1, src1w, SLJIT_IMM, -src2w) != SLJIT_ERR_UNSUPPORTED) |
| 1794 | return compiler->error; |
| 1795 | } |
| 1796 | else |
| 1797 | compiler->flags_saved = 0; |
| 1798 | if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS) && !compiler->flags_saved) |
| 1799 | FAIL_IF(emit_save_flags(compiler)); |
| 1800 | if (dst == SLJIT_UNUSED) |
| 1801 | return emit_cmp_binary(compiler, src1, src1w, src2, src2w); |
| 1802 | return emit_non_cum_binary(compiler, 0x2b, 0x29, 0x5 << 3, 0x2d, |
| 1803 | dst, dstw, src1, src1w, src2, src2w); |
| 1804 | case SLJIT_SUBC: |
| 1805 | if (SLJIT_UNLIKELY(compiler->flags_saved)) /* C flag must be restored. */ |
| 1806 | FAIL_IF(emit_restore_flags(compiler, 1)); |
| 1807 | else if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS)) |
| 1808 | FAIL_IF(emit_save_flags(compiler)); |
| 1809 | if (SLJIT_UNLIKELY(GET_FLAGS(op))) |
| 1810 | compiler->flags_saved = 0; |
| 1811 | return emit_non_cum_binary(compiler, 0x1b, 0x19, 0x3 << 3, 0x1d, |
| 1812 | dst, dstw, src1, src1w, src2, src2w); |
| 1813 | case SLJIT_MUL: |
| 1814 | return emit_mul(compiler, dst, dstw, src1, src1w, src2, src2w); |
| 1815 | case SLJIT_AND: |
| 1816 | if (dst == SLJIT_UNUSED) |
| 1817 | return emit_test_binary(compiler, src1, src1w, src2, src2w); |
| 1818 | return emit_cum_binary(compiler, 0x23, 0x21, 0x4 << 3, 0x25, |
| 1819 | dst, dstw, src1, src1w, src2, src2w); |
| 1820 | case SLJIT_OR: |
| 1821 | return emit_cum_binary(compiler, 0x0b, 0x09, 0x1 << 3, 0x0d, |
| 1822 | dst, dstw, src1, src1w, src2, src2w); |
| 1823 | case SLJIT_XOR: |
| 1824 | return emit_cum_binary(compiler, 0x33, 0x31, 0x6 << 3, 0x35, |
| 1825 | dst, dstw, src1, src1w, src2, src2w); |
| 1826 | case SLJIT_SHL: |
| 1827 | return emit_shift(compiler, 0x4 << 3, |
| 1828 | dst, dstw, src1, src1w, src2, src2w); |
| 1829 | case SLJIT_LSHR: |
| 1830 | return emit_shift(compiler, 0x5 << 3, |
| 1831 | dst, dstw, src1, src1w, src2, src2w); |
| 1832 | case SLJIT_ASHR: |
| 1833 | return emit_shift(compiler, 0x7 << 3, |
| 1834 | dst, dstw, src1, src1w, src2, src2w); |
| 1835 | } |
| 1836 | |
| 1837 | return SLJIT_SUCCESS; |
| 1838 | } |
| 1839 | |
| 1840 | /* --------------------------------------------------------------------- */ |
| 1841 | /* Floating point operators */ |
| 1842 | /* --------------------------------------------------------------------- */ |
| 1843 | |
| 1844 | #if (defined SLJIT_SSE2_AUTO && SLJIT_SSE2_AUTO) |
| 1845 | static int sse2_available = 0; |
| 1846 | #endif |
| 1847 | |
| 1848 | #if (defined SLJIT_SSE2 && SLJIT_SSE2) |
| 1849 | |
| 1850 | /* Alignment + 2 * 16 bytes. */ |
| 1851 | static sljit_i sse2_data[3 + 4 + 4]; |
| 1852 | static sljit_i *sse2_buffer; |
| 1853 | |
| 1854 | static void init_compiler() |
| 1855 | { |
| 1856 | #if (defined SLJIT_SSE2_AUTO && SLJIT_SSE2_AUTO) |
| 1857 | int features = 0; |
| 1858 | #endif |
| 1859 | |
| 1860 | sse2_buffer = (sljit_i*)(((sljit_uw)sse2_data + 15) & ~0xf); |
| 1861 | sse2_buffer[0] = 0; |
| 1862 | sse2_buffer[1] = 0x80000000; |
| 1863 | sse2_buffer[4] = 0xffffffff; |
| 1864 | sse2_buffer[5] = 0x7fffffff; |
| 1865 | |
| 1866 | #if (defined SLJIT_SSE2_AUTO && SLJIT_SSE2_AUTO) |
| 1867 | #ifdef __GNUC__ |
| 1868 | /* AT&T syntax. */ |
| 1869 | asm ( |
| 1870 | "pushl %%ebx\n" |
| 1871 | "movl $0x1, %%eax\n" |
| 1872 | "cpuid\n" |
| 1873 | "popl %%ebx\n" |
| 1874 | "movl %%edx, %0\n" |
| 1875 | : "=g" (features) |
| 1876 | : |
| 1877 | : "%eax", "%ecx", "%edx" |
| 1878 | ); |
| 1879 | #elif defined(_MSC_VER) || defined(__BORLANDC__) |
| 1880 | /* Intel syntax. */ |
| 1881 | __asm { |
| 1882 | mov eax, 1 |
| 1883 | push ebx |
| 1884 | cpuid |
| 1885 | pop ebx |
| 1886 | mov features, edx |
| 1887 | } |
| 1888 | #else |
| 1889 | #error "SLJIT_SSE2_AUTO is not implemented for this C compiler" |
| 1890 | #endif |
| 1891 | sse2_available = (features >> 26) & 0x1; |
| 1892 | #endif |
| 1893 | } |
| 1894 | |
| 1895 | #endif |
| 1896 | |
| 1897 | SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void) |
| 1898 | { |
| 1899 | /* Always available. */ |
| 1900 | return 1; |
| 1901 | } |
| 1902 | |
| 1903 | #if (defined SLJIT_SSE2 && SLJIT_SSE2) |
| 1904 | |
| 1905 | static int emit_sse2(struct sljit_compiler *compiler, sljit_ub opcode, |
| 1906 | int xmm1, int xmm2, sljit_w xmm2w) |
| 1907 | { |
| 1908 | sljit_ub *buf; |
| 1909 | |
| 1910 | buf = emit_x86_instruction(compiler, 2 | EX86_PREF_F2 | EX86_SSE2, xmm1, 0, xmm2, xmm2w); |
| 1911 | FAIL_IF(!buf); |
| 1912 | *buf++ = 0x0f; |
| 1913 | *buf = opcode; |
| 1914 | return SLJIT_SUCCESS; |
| 1915 | } |
| 1916 | |
| 1917 | static int emit_sse2_logic(struct sljit_compiler *compiler, sljit_ub opcode, |
| 1918 | int xmm1, int xmm2, sljit_w xmm2w) |
| 1919 | { |
| 1920 | sljit_ub *buf; |
| 1921 | |
| 1922 | buf = emit_x86_instruction(compiler, 2 | EX86_PREF_66 | EX86_SSE2, xmm1, 0, xmm2, xmm2w); |
| 1923 | FAIL_IF(!buf); |
| 1924 | *buf++ = 0x0f; |
| 1925 | *buf = opcode; |
| 1926 | return SLJIT_SUCCESS; |
| 1927 | } |
| 1928 | |
| 1929 | static SLJIT_INLINE int emit_sse2_load(struct sljit_compiler *compiler, |
| 1930 | int dst, int src, sljit_w srcw) |
| 1931 | { |
| 1932 | return emit_sse2(compiler, 0x10, dst, src, srcw); |
| 1933 | } |
| 1934 | |
| 1935 | static SLJIT_INLINE int emit_sse2_store(struct sljit_compiler *compiler, |
| 1936 | int dst, sljit_w dstw, int src) |
| 1937 | { |
| 1938 | return emit_sse2(compiler, 0x11, src, dst, dstw); |
| 1939 | } |
| 1940 | |
| 1941 | #if !(defined SLJIT_SSE2_AUTO && SLJIT_SSE2_AUTO) |
| 1942 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op, |
| 1943 | #else |
| 1944 | static int sljit_emit_sse2_fop1(struct sljit_compiler *compiler, int op, |
| 1945 | #endif |
| 1946 | int dst, sljit_w dstw, |
| 1947 | int src, sljit_w srcw) |
| 1948 | { |
| 1949 | int dst_r; |
| 1950 | |
| 1951 | CHECK_ERROR(); |
| 1952 | check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw); |
| 1953 | |
| 1954 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 1955 | compiler->mode32 = 1; |
| 1956 | #endif |
| 1957 | |
| 1958 | if (GET_OPCODE(op) == SLJIT_FCMP) { |
| 1959 | compiler->flags_saved = 0; |
| 1960 | if (dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4) |
| 1961 | dst_r = dst; |
| 1962 | else { |
| 1963 | dst_r = TMP_FREG; |
| 1964 | FAIL_IF(emit_sse2_load(compiler, dst_r, dst, dstw)); |
| 1965 | } |
| 1966 | return emit_sse2_logic(compiler, 0x2e, dst_r, src, srcw); |
| 1967 | } |
| 1968 | |
| 1969 | if (op == SLJIT_FMOV) { |
| 1970 | if (dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4) |
| 1971 | return emit_sse2_load(compiler, dst, src, srcw); |
| 1972 | if (src >= SLJIT_FLOAT_REG1 && src <= SLJIT_FLOAT_REG4) |
| 1973 | return emit_sse2_store(compiler, dst, dstw, src); |
| 1974 | FAIL_IF(emit_sse2_load(compiler, TMP_FREG, src, srcw)); |
| 1975 | return emit_sse2_store(compiler, dst, dstw, TMP_FREG); |
| 1976 | } |
| 1977 | |
| 1978 | if (dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4) { |
| 1979 | dst_r = dst; |
| 1980 | if (dst != src) |
| 1981 | FAIL_IF(emit_sse2_load(compiler, dst_r, src, srcw)); |
| 1982 | } |
| 1983 | else { |
| 1984 | dst_r = TMP_FREG; |
| 1985 | FAIL_IF(emit_sse2_load(compiler, dst_r, src, srcw)); |
| 1986 | } |
| 1987 | |
| 1988 | switch (op) { |
| 1989 | case SLJIT_FNEG: |
| 1990 | FAIL_IF(emit_sse2_logic(compiler, 0x57, dst_r, SLJIT_MEM0(), (sljit_w)sse2_buffer)); |
| 1991 | break; |
| 1992 | |
| 1993 | case SLJIT_FABS: |
| 1994 | FAIL_IF(emit_sse2_logic(compiler, 0x54, dst_r, SLJIT_MEM0(), (sljit_w)(sse2_buffer + 4))); |
| 1995 | break; |
| 1996 | } |
| 1997 | |
| 1998 | if (dst_r == TMP_FREG) |
| 1999 | return emit_sse2_store(compiler, dst, dstw, TMP_FREG); |
| 2000 | return SLJIT_SUCCESS; |
| 2001 | } |
| 2002 | |
| 2003 | #if !(defined SLJIT_SSE2_AUTO && SLJIT_SSE2_AUTO) |
| 2004 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op, |
| 2005 | #else |
| 2006 | static int sljit_emit_sse2_fop2(struct sljit_compiler *compiler, int op, |
| 2007 | #endif |
| 2008 | int dst, sljit_w dstw, |
| 2009 | int src1, sljit_w src1w, |
| 2010 | int src2, sljit_w src2w) |
| 2011 | { |
| 2012 | int dst_r; |
| 2013 | |
| 2014 | CHECK_ERROR(); |
| 2015 | check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w); |
| 2016 | |
| 2017 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 2018 | compiler->mode32 = 1; |
| 2019 | #endif |
| 2020 | |
| 2021 | if (dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4) { |
| 2022 | dst_r = dst; |
| 2023 | if (dst == src1) |
| 2024 | ; /* Do nothing here. */ |
| 2025 | else if (dst == src2 && (op == SLJIT_FADD || op == SLJIT_FMUL)) { |
| 2026 | /* Swap arguments. */ |
| 2027 | src2 = src1; |
| 2028 | src2w = src1w; |
| 2029 | } |
| 2030 | else if (dst != src2) |
| 2031 | FAIL_IF(emit_sse2_load(compiler, dst_r, src1, src1w)); |
| 2032 | else { |
| 2033 | dst_r = TMP_FREG; |
| 2034 | FAIL_IF(emit_sse2_load(compiler, TMP_FREG, src1, src1w)); |
| 2035 | } |
| 2036 | } |
| 2037 | else { |
| 2038 | dst_r = TMP_FREG; |
| 2039 | FAIL_IF(emit_sse2_load(compiler, TMP_FREG, src1, src1w)); |
| 2040 | } |
| 2041 | |
| 2042 | switch (op) { |
| 2043 | case SLJIT_FADD: |
| 2044 | FAIL_IF(emit_sse2(compiler, 0x58, dst_r, src2, src2w)); |
| 2045 | break; |
| 2046 | |
| 2047 | case SLJIT_FSUB: |
| 2048 | FAIL_IF(emit_sse2(compiler, 0x5c, dst_r, src2, src2w)); |
| 2049 | break; |
| 2050 | |
| 2051 | case SLJIT_FMUL: |
| 2052 | FAIL_IF(emit_sse2(compiler, 0x59, dst_r, src2, src2w)); |
| 2053 | break; |
| 2054 | |
| 2055 | case SLJIT_FDIV: |
| 2056 | FAIL_IF(emit_sse2(compiler, 0x5e, dst_r, src2, src2w)); |
| 2057 | break; |
| 2058 | } |
| 2059 | |
| 2060 | if (dst_r == TMP_FREG) |
| 2061 | return emit_sse2_store(compiler, dst, dstw, TMP_FREG); |
| 2062 | return SLJIT_SUCCESS; |
| 2063 | } |
| 2064 | |
| 2065 | #endif |
| 2066 | |
| 2067 | #if (defined SLJIT_SSE2_AUTO && SLJIT_SSE2_AUTO) || !(defined SLJIT_SSE2 && SLJIT_SSE2) |
| 2068 | |
| 2069 | static int emit_fld(struct sljit_compiler *compiler, |
| 2070 | int src, sljit_w srcw) |
| 2071 | { |
| 2072 | sljit_ub *buf; |
| 2073 | |
| 2074 | if (src >= SLJIT_FLOAT_REG1 && src <= SLJIT_FLOAT_REG4) { |
| 2075 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 2); |
| 2076 | FAIL_IF(!buf); |
| 2077 | INC_SIZE(2); |
| 2078 | *buf++ = 0xd9; |
| 2079 | *buf = 0xc0 + src - 1; |
| 2080 | return SLJIT_SUCCESS; |
| 2081 | } |
| 2082 | |
| 2083 | buf = emit_x86_instruction(compiler, 1, 0, 0, src, srcw); |
| 2084 | FAIL_IF(!buf); |
| 2085 | *buf = 0xdd; |
| 2086 | return SLJIT_SUCCESS; |
| 2087 | } |
| 2088 | |
| 2089 | static int emit_fop(struct sljit_compiler *compiler, |
| 2090 | sljit_ub st_arg, sljit_ub st_arg2, |
| 2091 | sljit_ub m64fp_arg, sljit_ub m64fp_arg2, |
| 2092 | int src, sljit_w srcw) |
| 2093 | { |
| 2094 | sljit_ub *buf; |
| 2095 | |
| 2096 | if (src >= SLJIT_FLOAT_REG1 && src <= SLJIT_FLOAT_REG4) { |
| 2097 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 2); |
| 2098 | FAIL_IF(!buf); |
| 2099 | INC_SIZE(2); |
| 2100 | *buf++ = st_arg; |
| 2101 | *buf = st_arg2 + src; |
| 2102 | return SLJIT_SUCCESS; |
| 2103 | } |
| 2104 | |
| 2105 | buf = emit_x86_instruction(compiler, 1, 0, 0, src, srcw); |
| 2106 | FAIL_IF(!buf); |
| 2107 | *buf++ = m64fp_arg; |
| 2108 | *buf |= m64fp_arg2; |
| 2109 | return SLJIT_SUCCESS; |
| 2110 | } |
| 2111 | |
| 2112 | static int emit_fop_regs(struct sljit_compiler *compiler, |
| 2113 | sljit_ub st_arg, sljit_ub st_arg2, |
| 2114 | int src) |
| 2115 | { |
| 2116 | sljit_ub *buf; |
| 2117 | |
| 2118 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 2); |
| 2119 | FAIL_IF(!buf); |
| 2120 | INC_SIZE(2); |
| 2121 | *buf++ = st_arg; |
| 2122 | *buf = st_arg2 + src; |
| 2123 | return SLJIT_SUCCESS; |
| 2124 | } |
| 2125 | |
| 2126 | #if !(defined SLJIT_SSE2_AUTO && SLJIT_SSE2_AUTO) |
| 2127 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op, |
| 2128 | #else |
| 2129 | static int sljit_emit_fpu_fop1(struct sljit_compiler *compiler, int op, |
| 2130 | #endif |
| 2131 | int dst, sljit_w dstw, |
| 2132 | int src, sljit_w srcw) |
| 2133 | { |
| 2134 | #if !(defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 2135 | sljit_ub *buf; |
| 2136 | #endif |
| 2137 | |
| 2138 | CHECK_ERROR(); |
| 2139 | check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw); |
| 2140 | |
| 2141 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 2142 | compiler->mode32 = 1; |
| 2143 | #endif |
| 2144 | |
| 2145 | if (GET_OPCODE(op) == SLJIT_FCMP) { |
| 2146 | compiler->flags_saved = 0; |
| 2147 | #if !(defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 2148 | FAIL_IF(emit_fld(compiler, dst, dstw)); |
| 2149 | FAIL_IF(emit_fop(compiler, 0xd8, 0xd8, 0xdc, 0x3 << 3, src, srcw)); |
| 2150 | |
| 2151 | /* Copy flags. */ |
| 2152 | EMIT_MOV(compiler, TMP_REGISTER, 0, SLJIT_TEMPORARY_REG1, 0); |
| 2153 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 3); |
| 2154 | FAIL_IF(!buf); |
| 2155 | INC_SIZE(3); |
| 2156 | *buf++ = 0xdf; |
| 2157 | *buf++ = 0xe0; |
| 2158 | /* Note: lahf is not supported on all x86-64 architectures. */ |
| 2159 | *buf++ = 0x9e; |
| 2160 | EMIT_MOV(compiler, SLJIT_TEMPORARY_REG1, 0, TMP_REGISTER, 0); |
| 2161 | #else |
| 2162 | if (src >= SLJIT_FLOAT_REG1 && src <= SLJIT_FLOAT_REG4) { |
| 2163 | FAIL_IF(emit_fld(compiler, dst, dstw)); |
| 2164 | FAIL_IF(emit_fop_regs(compiler, 0xdf, 0xe8, src)); |
| 2165 | } else { |
| 2166 | FAIL_IF(emit_fld(compiler, src, srcw)); |
| 2167 | FAIL_IF(emit_fld(compiler, dst + ((dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4) ? 1 : 0), dstw)); |
| 2168 | FAIL_IF(emit_fop_regs(compiler, 0xdf, 0xe8, src)); |
| 2169 | FAIL_IF(emit_fop_regs(compiler, 0xdd, 0xd8, 0)); |
| 2170 | } |
| 2171 | #endif |
| 2172 | return SLJIT_SUCCESS; |
| 2173 | } |
| 2174 | |
| 2175 | FAIL_IF(emit_fld(compiler, src, srcw)); |
| 2176 | |
| 2177 | switch (op) { |
| 2178 | case SLJIT_FNEG: |
| 2179 | FAIL_IF(emit_fop_regs(compiler, 0xd9, 0xe0, 0)); |
| 2180 | break; |
| 2181 | case SLJIT_FABS: |
| 2182 | FAIL_IF(emit_fop_regs(compiler, 0xd9, 0xe1, 0)); |
| 2183 | break; |
| 2184 | } |
| 2185 | |
| 2186 | FAIL_IF(emit_fop(compiler, 0xdd, 0xd8, 0xdd, 0x3 << 3, dst, dstw)); |
| 2187 | |
| 2188 | return SLJIT_SUCCESS; |
| 2189 | } |
| 2190 | |
| 2191 | #if !(defined SLJIT_SSE2_AUTO && SLJIT_SSE2_AUTO) |
| 2192 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op, |
| 2193 | #else |
| 2194 | static int sljit_emit_fpu_fop2(struct sljit_compiler *compiler, int op, |
| 2195 | #endif |
| 2196 | int dst, sljit_w dstw, |
| 2197 | int src1, sljit_w src1w, |
| 2198 | int src2, sljit_w src2w) |
| 2199 | { |
| 2200 | CHECK_ERROR(); |
| 2201 | check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w); |
| 2202 | |
| 2203 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 2204 | compiler->mode32 = 1; |
| 2205 | #endif |
| 2206 | |
| 2207 | if (src1 >= SLJIT_FLOAT_REG1 && src1 <= SLJIT_FLOAT_REG4 && dst == src1) { |
| 2208 | FAIL_IF(emit_fld(compiler, src2, src2w)); |
| 2209 | |
| 2210 | switch (op) { |
| 2211 | case SLJIT_FADD: |
| 2212 | FAIL_IF(emit_fop_regs(compiler, 0xde, 0xc0, src1)); |
| 2213 | break; |
| 2214 | case SLJIT_FSUB: |
| 2215 | FAIL_IF(emit_fop_regs(compiler, 0xde, 0xe8, src1)); |
| 2216 | break; |
| 2217 | case SLJIT_FMUL: |
| 2218 | FAIL_IF(emit_fop_regs(compiler, 0xde, 0xc8, src1)); |
| 2219 | break; |
| 2220 | case SLJIT_FDIV: |
| 2221 | FAIL_IF(emit_fop_regs(compiler, 0xde, 0xf8, src1)); |
| 2222 | break; |
| 2223 | } |
| 2224 | return SLJIT_SUCCESS; |
| 2225 | } |
| 2226 | |
| 2227 | FAIL_IF(emit_fld(compiler, src1, src1w)); |
| 2228 | |
| 2229 | if (src2 >= SLJIT_FLOAT_REG1 && src2 <= SLJIT_FLOAT_REG4 && dst == src2) { |
| 2230 | switch (op) { |
| 2231 | case SLJIT_FADD: |
| 2232 | FAIL_IF(emit_fop_regs(compiler, 0xde, 0xc0, src2)); |
| 2233 | break; |
| 2234 | case SLJIT_FSUB: |
| 2235 | FAIL_IF(emit_fop_regs(compiler, 0xde, 0xe0, src2)); |
| 2236 | break; |
| 2237 | case SLJIT_FMUL: |
| 2238 | FAIL_IF(emit_fop_regs(compiler, 0xde, 0xc8, src2)); |
| 2239 | break; |
| 2240 | case SLJIT_FDIV: |
| 2241 | FAIL_IF(emit_fop_regs(compiler, 0xde, 0xf0, src2)); |
| 2242 | break; |
| 2243 | } |
| 2244 | return SLJIT_SUCCESS; |
| 2245 | } |
| 2246 | |
| 2247 | switch (op) { |
| 2248 | case SLJIT_FADD: |
| 2249 | FAIL_IF(emit_fop(compiler, 0xd8, 0xc0, 0xdc, 0x0 << 3, src2, src2w)); |
| 2250 | break; |
| 2251 | case SLJIT_FSUB: |
| 2252 | FAIL_IF(emit_fop(compiler, 0xd8, 0xe0, 0xdc, 0x4 << 3, src2, src2w)); |
| 2253 | break; |
| 2254 | case SLJIT_FMUL: |
| 2255 | FAIL_IF(emit_fop(compiler, 0xd8, 0xc8, 0xdc, 0x1 << 3, src2, src2w)); |
| 2256 | break; |
| 2257 | case SLJIT_FDIV: |
| 2258 | FAIL_IF(emit_fop(compiler, 0xd8, 0xf0, 0xdc, 0x6 << 3, src2, src2w)); |
| 2259 | break; |
| 2260 | } |
| 2261 | |
| 2262 | FAIL_IF(emit_fop(compiler, 0xdd, 0xd8, 0xdd, 0x3 << 3, dst, dstw)); |
| 2263 | |
| 2264 | return SLJIT_SUCCESS; |
| 2265 | } |
| 2266 | #endif |
| 2267 | |
| 2268 | #if (defined SLJIT_SSE2_AUTO && SLJIT_SSE2_AUTO) |
| 2269 | |
| 2270 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op, |
| 2271 | int dst, sljit_w dstw, |
| 2272 | int src, sljit_w srcw) |
| 2273 | { |
| 2274 | if (sse2_available) |
| 2275 | return sljit_emit_sse2_fop1(compiler, op, dst, dstw, src, srcw); |
| 2276 | else |
| 2277 | return sljit_emit_fpu_fop1(compiler, op, dst, dstw, src, srcw); |
| 2278 | } |
| 2279 | |
| 2280 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op, |
| 2281 | int dst, sljit_w dstw, |
| 2282 | int src1, sljit_w src1w, |
| 2283 | int src2, sljit_w src2w) |
| 2284 | { |
| 2285 | if (sse2_available) |
| 2286 | return sljit_emit_sse2_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w); |
| 2287 | else |
| 2288 | return sljit_emit_fpu_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w); |
| 2289 | } |
| 2290 | |
| 2291 | #endif |
| 2292 | |
| 2293 | /* --------------------------------------------------------------------- */ |
| 2294 | /* Conditional instructions */ |
| 2295 | /* --------------------------------------------------------------------- */ |
| 2296 | |
| 2297 | SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler) |
| 2298 | { |
| 2299 | sljit_ub *buf; |
| 2300 | struct sljit_label *label; |
| 2301 | |
| 2302 | CHECK_ERROR_PTR(); |
| 2303 | check_sljit_emit_label(compiler); |
| 2304 | |
| 2305 | /* We should restore the flags before the label, |
| 2306 | since other taken jumps has their own flags as well. */ |
| 2307 | if (SLJIT_UNLIKELY(compiler->flags_saved)) |
| 2308 | PTR_FAIL_IF(emit_restore_flags(compiler, 0)); |
| 2309 | |
| 2310 | if (compiler->last_label && compiler->last_label->size == compiler->size) |
| 2311 | return compiler->last_label; |
| 2312 | |
| 2313 | label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label)); |
| 2314 | PTR_FAIL_IF(!label); |
| 2315 | set_label(label, compiler); |
| 2316 | |
| 2317 | buf = (sljit_ub*)ensure_buf(compiler, 2); |
| 2318 | PTR_FAIL_IF(!buf); |
| 2319 | |
| 2320 | *buf++ = 0; |
| 2321 | *buf++ = 0; |
| 2322 | |
| 2323 | return label; |
| 2324 | } |
| 2325 | |
| 2326 | SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type) |
| 2327 | { |
| 2328 | sljit_ub *buf; |
| 2329 | struct sljit_jump *jump; |
| 2330 | |
| 2331 | CHECK_ERROR_PTR(); |
| 2332 | check_sljit_emit_jump(compiler, type); |
| 2333 | |
| 2334 | if (SLJIT_UNLIKELY(compiler->flags_saved)) { |
| 2335 | if ((type & 0xff) <= SLJIT_JUMP) |
| 2336 | PTR_FAIL_IF(emit_restore_flags(compiler, 0)); |
| 2337 | compiler->flags_saved = 0; |
| 2338 | } |
| 2339 | |
| 2340 | jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); |
| 2341 | PTR_FAIL_IF_NULL(jump); |
| 2342 | set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); |
| 2343 | type &= 0xff; |
| 2344 | |
| 2345 | if (type >= SLJIT_CALL1) |
| 2346 | PTR_FAIL_IF(call_with_args(compiler, type)); |
| 2347 | |
| 2348 | /* Worst case size. */ |
| 2349 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 2350 | compiler->size += (type >= SLJIT_JUMP) ? 5 : 6; |
| 2351 | #else |
| 2352 | compiler->size += (type >= SLJIT_JUMP) ? (10 + 3) : (2 + 10 + 3); |
| 2353 | #endif |
| 2354 | |
| 2355 | buf = (sljit_ub*)ensure_buf(compiler, 2); |
| 2356 | PTR_FAIL_IF_NULL(buf); |
| 2357 | |
| 2358 | *buf++ = 0; |
| 2359 | *buf++ = type + 4; |
| 2360 | return jump; |
| 2361 | } |
| 2362 | |
| 2363 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw) |
| 2364 | { |
| 2365 | sljit_ub *code; |
| 2366 | struct sljit_jump *jump; |
| 2367 | |
| 2368 | CHECK_ERROR(); |
| 2369 | check_sljit_emit_ijump(compiler, type, src, srcw); |
| 2370 | |
| 2371 | CHECK_EXTRA_REGS(src, srcw, (void)0); |
| 2372 | if (SLJIT_UNLIKELY(compiler->flags_saved)) { |
| 2373 | if (type <= SLJIT_JUMP) |
| 2374 | FAIL_IF(emit_restore_flags(compiler, 0)); |
| 2375 | compiler->flags_saved = 0; |
| 2376 | } |
| 2377 | |
| 2378 | if (type >= SLJIT_CALL1) { |
| 2379 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 2380 | #if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL) |
| 2381 | if (src == SLJIT_TEMPORARY_REG3) { |
| 2382 | EMIT_MOV(compiler, TMP_REGISTER, 0, src, 0); |
| 2383 | src = TMP_REGISTER; |
| 2384 | } |
| 2385 | if ((src & SLJIT_MEM) && (src & 0xf) == SLJIT_LOCALS_REG && type >= SLJIT_CALL3) { |
| 2386 | if (src & 0xf0) { |
| 2387 | EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw); |
| 2388 | src = TMP_REGISTER; |
| 2389 | } |
| 2390 | else |
| 2391 | srcw += sizeof(sljit_w); |
| 2392 | } |
| 2393 | #else |
| 2394 | if ((src & SLJIT_MEM) && (src & 0xf) == SLJIT_LOCALS_REG) { |
| 2395 | if (src & 0xf0) { |
| 2396 | EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw); |
| 2397 | src = TMP_REGISTER; |
| 2398 | } |
| 2399 | else |
| 2400 | srcw += sizeof(sljit_w) * (type - SLJIT_CALL0); |
| 2401 | } |
| 2402 | #endif |
| 2403 | #endif |
| 2404 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) && defined(_WIN64) |
| 2405 | if (src == SLJIT_TEMPORARY_REG3) { |
| 2406 | EMIT_MOV(compiler, TMP_REGISTER, 0, src, 0); |
| 2407 | src = TMP_REGISTER; |
| 2408 | } |
| 2409 | #endif |
| 2410 | FAIL_IF(call_with_args(compiler, type)); |
| 2411 | } |
| 2412 | |
| 2413 | if (src == SLJIT_IMM) { |
| 2414 | jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); |
| 2415 | FAIL_IF_NULL(jump); |
| 2416 | set_jump(jump, compiler, JUMP_ADDR); |
| 2417 | jump->u.target = srcw; |
| 2418 | |
| 2419 | /* Worst case size. */ |
| 2420 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 2421 | compiler->size += 5; |
| 2422 | #else |
| 2423 | compiler->size += 10 + 3; |
| 2424 | #endif |
| 2425 | |
| 2426 | code = (sljit_ub*)ensure_buf(compiler, 2); |
| 2427 | FAIL_IF_NULL(code); |
| 2428 | |
| 2429 | *code++ = 0; |
| 2430 | *code++ = type + 4; |
| 2431 | } |
| 2432 | else { |
| 2433 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 2434 | /* REX_W is not necessary (src is not immediate). */ |
| 2435 | compiler->mode32 = 1; |
| 2436 | #endif |
| 2437 | code = emit_x86_instruction(compiler, 1, 0, 0, src, srcw); |
| 2438 | FAIL_IF(!code); |
| 2439 | *code++ = 0xff; |
| 2440 | *code |= (type >= SLJIT_FAST_CALL) ? (2 << 3) : (4 << 3); |
| 2441 | } |
| 2442 | return SLJIT_SUCCESS; |
| 2443 | } |
| 2444 | |
| 2445 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type) |
| 2446 | { |
| 2447 | sljit_ub *buf; |
| 2448 | sljit_ub cond_set = 0; |
| 2449 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 2450 | int reg; |
| 2451 | #endif |
| 2452 | |
| 2453 | CHECK_ERROR(); |
| 2454 | check_sljit_emit_cond_value(compiler, op, dst, dstw, type); |
| 2455 | |
| 2456 | if (dst == SLJIT_UNUSED) |
| 2457 | return SLJIT_SUCCESS; |
| 2458 | |
| 2459 | CHECK_EXTRA_REGS(dst, dstw, (void)0); |
| 2460 | if (SLJIT_UNLIKELY(compiler->flags_saved)) |
| 2461 | FAIL_IF(emit_restore_flags(compiler, 0)); |
| 2462 | |
| 2463 | switch (type) { |
| 2464 | case SLJIT_C_EQUAL: |
| 2465 | case SLJIT_C_FLOAT_EQUAL: |
| 2466 | cond_set = 0x94; |
| 2467 | break; |
| 2468 | |
| 2469 | case SLJIT_C_NOT_EQUAL: |
| 2470 | case SLJIT_C_FLOAT_NOT_EQUAL: |
| 2471 | cond_set = 0x95; |
| 2472 | break; |
| 2473 | |
| 2474 | case SLJIT_C_LESS: |
| 2475 | case SLJIT_C_FLOAT_LESS: |
| 2476 | cond_set = 0x92; |
| 2477 | break; |
| 2478 | |
| 2479 | case SLJIT_C_GREATER_EQUAL: |
| 2480 | case SLJIT_C_FLOAT_GREATER_EQUAL: |
| 2481 | cond_set = 0x93; |
| 2482 | break; |
| 2483 | |
| 2484 | case SLJIT_C_GREATER: |
| 2485 | case SLJIT_C_FLOAT_GREATER: |
| 2486 | cond_set = 0x97; |
| 2487 | break; |
| 2488 | |
| 2489 | case SLJIT_C_LESS_EQUAL: |
| 2490 | case SLJIT_C_FLOAT_LESS_EQUAL: |
| 2491 | cond_set = 0x96; |
| 2492 | break; |
| 2493 | |
| 2494 | case SLJIT_C_SIG_LESS: |
| 2495 | cond_set = 0x9c; |
| 2496 | break; |
| 2497 | |
| 2498 | case SLJIT_C_SIG_GREATER_EQUAL: |
| 2499 | cond_set = 0x9d; |
| 2500 | break; |
| 2501 | |
| 2502 | case SLJIT_C_SIG_GREATER: |
| 2503 | cond_set = 0x9f; |
| 2504 | break; |
| 2505 | |
| 2506 | case SLJIT_C_SIG_LESS_EQUAL: |
| 2507 | cond_set = 0x9e; |
| 2508 | break; |
| 2509 | |
| 2510 | case SLJIT_C_OVERFLOW: |
| 2511 | case SLJIT_C_MUL_OVERFLOW: |
| 2512 | cond_set = 0x90; |
| 2513 | break; |
| 2514 | |
| 2515 | case SLJIT_C_NOT_OVERFLOW: |
| 2516 | case SLJIT_C_MUL_NOT_OVERFLOW: |
| 2517 | cond_set = 0x91; |
| 2518 | break; |
| 2519 | |
| 2520 | case SLJIT_C_FLOAT_NAN: |
| 2521 | cond_set = 0x9a; |
| 2522 | break; |
| 2523 | |
| 2524 | case SLJIT_C_FLOAT_NOT_NAN: |
| 2525 | cond_set = 0x9b; |
| 2526 | break; |
| 2527 | } |
| 2528 | |
| 2529 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 2530 | reg = (op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REGISTER; |
| 2531 | |
| 2532 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 4 + 4); |
| 2533 | FAIL_IF(!buf); |
| 2534 | INC_SIZE(4 + 4); |
| 2535 | /* Set low register to conditional flag. */ |
| 2536 | *buf++ = (reg_map[reg] <= 7) ? 0x40 : REX_B; |
| 2537 | *buf++ = 0x0f; |
| 2538 | *buf++ = cond_set; |
| 2539 | *buf++ = 0xC0 | reg_lmap[reg]; |
| 2540 | *buf++ = REX_W | (reg_map[reg] <= 7 ? 0 : (REX_B | REX_R)); |
| 2541 | *buf++ = 0x0f; |
| 2542 | *buf++ = 0xb6; |
| 2543 | *buf = 0xC0 | (reg_lmap[reg] << 3) | reg_lmap[reg]; |
| 2544 | |
| 2545 | if (reg == TMP_REGISTER) { |
| 2546 | if (op == SLJIT_MOV) { |
| 2547 | compiler->mode32 = 0; |
| 2548 | EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0); |
| 2549 | } |
| 2550 | else { |
| 2551 | #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG) |
| 2552 | compiler->skip_checks = 1; |
| 2553 | #endif |
| 2554 | return sljit_emit_op2(compiler, op, dst, dstw, dst, dstw, TMP_REGISTER, 0); |
| 2555 | } |
| 2556 | } |
| 2557 | #else |
| 2558 | if (op == SLJIT_MOV) { |
| 2559 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_TEMPORARY_REG3) { |
| 2560 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 3 + 3); |
| 2561 | FAIL_IF(!buf); |
| 2562 | INC_SIZE(3 + 3); |
| 2563 | /* Set low byte to conditional flag. */ |
| 2564 | *buf++ = 0x0f; |
| 2565 | *buf++ = cond_set; |
| 2566 | *buf++ = 0xC0 | reg_map[dst]; |
| 2567 | |
| 2568 | *buf++ = 0x0f; |
| 2569 | *buf++ = 0xb6; |
| 2570 | *buf = 0xC0 | (reg_map[dst] << 3) | reg_map[dst]; |
| 2571 | } |
| 2572 | else { |
| 2573 | EMIT_MOV(compiler, TMP_REGISTER, 0, SLJIT_TEMPORARY_REG1, 0); |
| 2574 | |
| 2575 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 3 + 3); |
| 2576 | FAIL_IF(!buf); |
| 2577 | INC_SIZE(3 + 3); |
| 2578 | /* Set al to conditional flag. */ |
| 2579 | *buf++ = 0x0f; |
| 2580 | *buf++ = cond_set; |
| 2581 | *buf++ = 0xC0; |
| 2582 | |
| 2583 | *buf++ = 0x0f; |
| 2584 | *buf++ = 0xb6; |
| 2585 | if (dst >= SLJIT_GENERAL_REG1 && dst <= SLJIT_NO_REGISTERS) |
| 2586 | *buf = 0xC0 | (reg_map[dst] << 3); |
| 2587 | else { |
| 2588 | *buf = 0xC0; |
| 2589 | EMIT_MOV(compiler, dst, dstw, SLJIT_TEMPORARY_REG1, 0); |
| 2590 | } |
| 2591 | |
| 2592 | EMIT_MOV(compiler, SLJIT_TEMPORARY_REG1, 0, TMP_REGISTER, 0); |
| 2593 | } |
| 2594 | } |
| 2595 | else { |
| 2596 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_TEMPORARY_REG3) { |
| 2597 | EMIT_MOV(compiler, TMP_REGISTER, 0, dst, 0); |
| 2598 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 3); |
| 2599 | FAIL_IF(!buf); |
| 2600 | INC_SIZE(3); |
| 2601 | |
| 2602 | *buf++ = 0x0f; |
| 2603 | *buf++ = cond_set; |
| 2604 | *buf++ = 0xC0 | reg_map[dst]; |
| 2605 | } |
| 2606 | else { |
| 2607 | EMIT_MOV(compiler, TMP_REGISTER, 0, SLJIT_TEMPORARY_REG1, 0); |
| 2608 | |
| 2609 | buf = (sljit_ub*)ensure_buf(compiler, 1 + 3 + 3 + 1); |
| 2610 | FAIL_IF(!buf); |
| 2611 | INC_SIZE(3 + 3 + 1); |
| 2612 | /* Set al to conditional flag. */ |
| 2613 | *buf++ = 0x0f; |
| 2614 | *buf++ = cond_set; |
| 2615 | *buf++ = 0xC0; |
| 2616 | |
| 2617 | *buf++ = 0x0f; |
| 2618 | *buf++ = 0xb6; |
| 2619 | *buf++ = 0xC0; |
| 2620 | |
| 2621 | *buf++ = 0x90 + reg_map[TMP_REGISTER]; |
| 2622 | } |
| 2623 | #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG) |
| 2624 | compiler->skip_checks = 1; |
| 2625 | #endif |
| 2626 | return sljit_emit_op2(compiler, op, dst, dstw, dst, dstw, TMP_REGISTER, 0); |
| 2627 | } |
| 2628 | #endif |
| 2629 | |
| 2630 | return SLJIT_SUCCESS; |
| 2631 | } |
| 2632 | |
| 2633 | SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value) |
| 2634 | { |
| 2635 | sljit_ub *buf; |
| 2636 | struct sljit_const *const_; |
| 2637 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 2638 | int reg; |
| 2639 | #endif |
| 2640 | |
| 2641 | CHECK_ERROR_PTR(); |
| 2642 | check_sljit_emit_const(compiler, dst, dstw, init_value); |
| 2643 | |
| 2644 | CHECK_EXTRA_REGS(dst, dstw, (void)0); |
| 2645 | |
| 2646 | const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const)); |
| 2647 | PTR_FAIL_IF(!const_); |
| 2648 | set_const(const_, compiler); |
| 2649 | |
| 2650 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 2651 | compiler->mode32 = 0; |
| 2652 | reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REGISTER; |
| 2653 | |
| 2654 | if (emit_load_imm64(compiler, reg, init_value)) |
| 2655 | return NULL; |
| 2656 | #else |
| 2657 | if (dst == SLJIT_UNUSED) |
| 2658 | dst = TMP_REGISTER; |
| 2659 | |
| 2660 | if (emit_mov(compiler, dst, dstw, SLJIT_IMM, init_value)) |
| 2661 | return NULL; |
| 2662 | #endif |
| 2663 | |
| 2664 | buf = (sljit_ub*)ensure_buf(compiler, 2); |
| 2665 | PTR_FAIL_IF(!buf); |
| 2666 | |
| 2667 | *buf++ = 0; |
| 2668 | *buf++ = 1; |
| 2669 | |
| 2670 | #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) |
| 2671 | if (reg == TMP_REGISTER && dst != SLJIT_UNUSED) |
| 2672 | if (emit_mov(compiler, dst, dstw, TMP_REGISTER, 0)) |
| 2673 | return NULL; |
| 2674 | #endif |
| 2675 | |
| 2676 | return const_; |
| 2677 | } |
| 2678 | |
| 2679 | SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr) |
| 2680 | { |
| 2681 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 2682 | *(sljit_w*)addr = new_addr - (addr + 4); |
| 2683 | #else |
| 2684 | *(sljit_uw*)addr = new_addr; |
| 2685 | #endif |
| 2686 | } |
| 2687 | |
| 2688 | SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant) |
| 2689 | { |
| 2690 | *(sljit_w*)addr = new_constant; |
| 2691 | } |