sljitNativeMIPS_32.c revision 1.1.1.2.4.2
1 /* 2 * Stack-less Just-In-Time compiler 3 * 4 * Copyright 2009-2012 Zoltan Herczeg (hzmester (at) freemail.hu). All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without modification, are 7 * permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, this list of 10 * conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 13 * of conditions and the following disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 /* mips 32-bit arch dependent functions. */ 28 29 static int load_immediate(struct sljit_compiler *compiler, int dst_ar, sljit_w imm) 30 { 31 if (!(imm & ~0xffff)) 32 return push_inst(compiler, ORI | SA(0) | TA(dst_ar) | IMM(imm), dst_ar); 33 34 if (imm < 0 && imm >= SIMM_MIN) 35 return push_inst(compiler, ADDIU | SA(0) | TA(dst_ar) | IMM(imm), dst_ar); 36 37 FAIL_IF(push_inst(compiler, LUI | TA(dst_ar) | IMM(imm >> 16), dst_ar)); 38 return (imm & 0xffff) ? push_inst(compiler, ORI | SA(dst_ar) | TA(dst_ar) | IMM(imm), dst_ar) : SLJIT_SUCCESS; 39 } 40 41 #define EMIT_LOGICAL(op_imm, op_norm) \ 42 if (flags & SRC2_IMM) { \ 43 if (op & SLJIT_SET_E) \ 44 FAIL_IF(push_inst(compiler, op_imm | S(src1) | TA(EQUAL_FLAG) | IMM(src2), EQUAL_FLAG)); \ 45 if (CHECK_FLAGS(SLJIT_SET_E)) \ 46 FAIL_IF(push_inst(compiler, op_imm | S(src1) | T(dst) | IMM(src2), DR(dst))); \ 47 } \ 48 else { \ 49 if (op & SLJIT_SET_E) \ 50 FAIL_IF(push_inst(compiler, op_norm | S(src1) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG)); \ 51 if (CHECK_FLAGS(SLJIT_SET_E)) \ 52 FAIL_IF(push_inst(compiler, op_norm | S(src1) | T(src2) | D(dst), DR(dst))); \ 53 } 54 55 #define EMIT_SHIFT(op_imm, op_norm) \ 56 if (flags & SRC2_IMM) { \ 57 if (op & SLJIT_SET_E) \ 58 FAIL_IF(push_inst(compiler, op_imm | T(src1) | DA(EQUAL_FLAG) | SH_IMM(src2), EQUAL_FLAG)); \ 59 if (CHECK_FLAGS(SLJIT_SET_E)) \ 60 FAIL_IF(push_inst(compiler, op_imm | T(src1) | D(dst) | SH_IMM(src2), DR(dst))); \ 61 } \ 62 else { \ 63 if (op & SLJIT_SET_E) \ 64 FAIL_IF(push_inst(compiler, op_norm | S(src2) | T(src1) | DA(EQUAL_FLAG), EQUAL_FLAG)); \ 65 if (CHECK_FLAGS(SLJIT_SET_E)) \ 66 FAIL_IF(push_inst(compiler, op_norm | S(src2) | T(src1) | D(dst), DR(dst))); \ 67 } 68 69 static SLJIT_INLINE int emit_single_op(struct sljit_compiler *compiler, int op, int flags, 70 int dst, int src1, sljit_w src2) 71 { 72 int overflow_ra = 0; 73 74 switch (GET_OPCODE(op)) { 75 case SLJIT_MOV: 76 case SLJIT_MOV_UI: 77 case SLJIT_MOV_SI: 78 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); 79 if (dst != src2) 80 return push_inst(compiler, ADDU | S(src2) | TA(0) | D(dst), DR(dst)); 81 return SLJIT_SUCCESS; 82 83 case SLJIT_MOV_UB: 84 case SLJIT_MOV_SB: 85 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); 86 if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) { 87 if (op == SLJIT_MOV_SB) { 88 #if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) 89 return push_inst(compiler, SEB | T(src2) | D(dst), DR(dst)); 90 #else 91 FAIL_IF(push_inst(compiler, SLL | T(src2) | D(dst) | SH_IMM(24), DR(dst))); 92 return push_inst(compiler, SRA | T(dst) | D(dst) | SH_IMM(24), DR(dst)); 93 #endif 94 } 95 return push_inst(compiler, ANDI | S(src2) | T(dst) | IMM(0xff), DR(dst)); 96 } 97 else if (dst != src2) 98 SLJIT_ASSERT_STOP(); 99 return SLJIT_SUCCESS; 100 101 case SLJIT_MOV_UH: 102 case SLJIT_MOV_SH: 103 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); 104 if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) { 105 if (op == SLJIT_MOV_SH) { 106 #if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) 107 return push_inst(compiler, SEH | T(src2) | D(dst), DR(dst)); 108 #else 109 FAIL_IF(push_inst(compiler, SLL | T(src2) | D(dst) | SH_IMM(16), DR(dst))); 110 return push_inst(compiler, SRA | T(dst) | D(dst) | SH_IMM(16), DR(dst)); 111 #endif 112 } 113 return push_inst(compiler, ANDI | S(src2) | T(dst) | IMM(0xffff), DR(dst)); 114 } 115 else if (dst != src2) 116 SLJIT_ASSERT_STOP(); 117 return SLJIT_SUCCESS; 118 119 case SLJIT_NOT: 120 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); 121 if (op & SLJIT_SET_E) 122 FAIL_IF(push_inst(compiler, NOR | S(src2) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG)); 123 if (CHECK_FLAGS(SLJIT_SET_E)) 124 FAIL_IF(push_inst(compiler, NOR | S(src2) | T(src2) | D(dst), DR(dst))); 125 return SLJIT_SUCCESS; 126 127 case SLJIT_CLZ: 128 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); 129 #if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) 130 if (op & SLJIT_SET_E) 131 FAIL_IF(push_inst(compiler, CLZ | S(src2) | TA(EQUAL_FLAG) | DA(EQUAL_FLAG), EQUAL_FLAG)); 132 if (CHECK_FLAGS(SLJIT_SET_E)) 133 FAIL_IF(push_inst(compiler, CLZ | S(src2) | T(dst) | D(dst), DR(dst))); 134 #else 135 if (SLJIT_UNLIKELY(flags & UNUSED_DEST)) { 136 FAIL_IF(push_inst(compiler, SRL | T(src2) | DA(EQUAL_FLAG) | SH_IMM(31), EQUAL_FLAG)); 137 return push_inst(compiler, XORI | SA(EQUAL_FLAG) | TA(EQUAL_FLAG) | IMM(1), EQUAL_FLAG); 138 } 139 /* Nearly all instructions are unmovable in the following sequence. */ 140 FAIL_IF(push_inst(compiler, ADDU_W | S(src2) | TA(0) | D(TMP_REG1), DR(TMP_REG1))); 141 /* Check zero. */ 142 FAIL_IF(push_inst(compiler, BEQ | S(TMP_REG1) | TA(0) | IMM(5), UNMOVABLE_INS)); 143 FAIL_IF(push_inst(compiler, ORI | SA(0) | T(dst) | IMM(32), UNMOVABLE_INS)); 144 FAIL_IF(push_inst(compiler, ADDIU_W | SA(0) | T(dst) | IMM(-1), DR(dst))); 145 /* Loop for searching the highest bit. */ 146 FAIL_IF(push_inst(compiler, ADDIU_W | S(dst) | T(dst) | IMM(1), DR(dst))); 147 FAIL_IF(push_inst(compiler, BGEZ | S(TMP_REG1) | IMM(-2), UNMOVABLE_INS)); 148 FAIL_IF(push_inst(compiler, SLL | T(TMP_REG1) | D(TMP_REG1) | SH_IMM(1), UNMOVABLE_INS)); 149 if (op & SLJIT_SET_E) 150 return push_inst(compiler, ADDU_W | S(dst) | TA(0) | DA(EQUAL_FLAG), EQUAL_FLAG); 151 #endif 152 return SLJIT_SUCCESS; 153 154 case SLJIT_ADD: 155 if (flags & SRC2_IMM) { 156 if (op & SLJIT_SET_O) { 157 FAIL_IF(push_inst(compiler, SRL | T(src1) | DA(TMP_EREG1) | SH_IMM(31), TMP_EREG1)); 158 if (src2 < 0) 159 FAIL_IF(push_inst(compiler, XORI | SA(TMP_EREG1) | TA(TMP_EREG1) | IMM(1), TMP_EREG1)); 160 } 161 if (op & SLJIT_SET_E) 162 FAIL_IF(push_inst(compiler, ADDIU | S(src1) | TA(EQUAL_FLAG) | IMM(src2), EQUAL_FLAG)); 163 if (op & SLJIT_SET_C) { 164 if (src2 >= 0) 165 FAIL_IF(push_inst(compiler, ORI | S(src1) | TA(ULESS_FLAG) | IMM(src2), ULESS_FLAG)); 166 else { 167 FAIL_IF(push_inst(compiler, ADDIU | SA(0) | TA(ULESS_FLAG) | IMM(src2), ULESS_FLAG)); 168 FAIL_IF(push_inst(compiler, OR | S(src1) | TA(ULESS_FLAG) | DA(ULESS_FLAG), ULESS_FLAG)); 169 } 170 } 171 /* dst may be the same as src1 or src2. */ 172 if (CHECK_FLAGS(SLJIT_SET_E)) 173 FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(src2), DR(dst))); 174 if (op & SLJIT_SET_O) { 175 FAIL_IF(push_inst(compiler, SRL | T(dst) | DA(OVERFLOW_FLAG) | SH_IMM(31), OVERFLOW_FLAG)); 176 if (src2 < 0) 177 FAIL_IF(push_inst(compiler, XORI | SA(OVERFLOW_FLAG) | TA(OVERFLOW_FLAG) | IMM(1), OVERFLOW_FLAG)); 178 } 179 } 180 else { 181 if (op & SLJIT_SET_O) { 182 FAIL_IF(push_inst(compiler, XOR | S(src1) | T(src2) | DA(TMP_EREG1), TMP_EREG1)); 183 FAIL_IF(push_inst(compiler, SRL | TA(TMP_EREG1) | DA(TMP_EREG1) | SH_IMM(31), TMP_EREG1)); 184 if (src1 != dst) 185 overflow_ra = DR(src1); 186 else if (src2 != dst) 187 overflow_ra = DR(src2); 188 else { 189 /* Rare ocasion. */ 190 FAIL_IF(push_inst(compiler, ADDU | S(src1) | TA(0) | DA(TMP_EREG2), TMP_EREG2)); 191 overflow_ra = TMP_EREG2; 192 } 193 } 194 if (op & SLJIT_SET_E) 195 FAIL_IF(push_inst(compiler, ADDU | S(src1) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG)); 196 if (op & SLJIT_SET_C) 197 FAIL_IF(push_inst(compiler, OR | S(src1) | T(src2) | DA(ULESS_FLAG), ULESS_FLAG)); 198 /* dst may be the same as src1 or src2. */ 199 if (CHECK_FLAGS(SLJIT_SET_E)) 200 FAIL_IF(push_inst(compiler, ADDU | S(src1) | T(src2) | D(dst), DR(dst))); 201 if (op & SLJIT_SET_O) { 202 FAIL_IF(push_inst(compiler, XOR | S(dst) | TA(overflow_ra) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG)); 203 FAIL_IF(push_inst(compiler, SRL | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG) | SH_IMM(31), OVERFLOW_FLAG)); 204 } 205 } 206 207 /* a + b >= a | b (otherwise, the carry should be set to 1). */ 208 if (op & SLJIT_SET_C) 209 FAIL_IF(push_inst(compiler, SLTU | S(dst) | TA(ULESS_FLAG) | DA(ULESS_FLAG), ULESS_FLAG)); 210 if (op & SLJIT_SET_O) 211 return push_inst(compiler, MOVN | SA(0) | TA(TMP_EREG1) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG); 212 return SLJIT_SUCCESS; 213 214 case SLJIT_ADDC: 215 if (flags & SRC2_IMM) { 216 if (op & SLJIT_SET_C) { 217 if (src2 >= 0) 218 FAIL_IF(push_inst(compiler, ORI | S(src1) | TA(TMP_EREG1) | IMM(src2), TMP_EREG1)); 219 else { 220 FAIL_IF(push_inst(compiler, ADDIU | SA(0) | TA(TMP_EREG1) | IMM(src2), TMP_EREG1)); 221 FAIL_IF(push_inst(compiler, OR | S(src1) | TA(TMP_EREG1) | DA(TMP_EREG1), TMP_EREG1)); 222 } 223 } 224 FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(src2), DR(dst))); 225 } else { 226 if (op & SLJIT_SET_C) 227 FAIL_IF(push_inst(compiler, OR | S(src1) | T(src2) | DA(TMP_EREG1), TMP_EREG1)); 228 /* dst may be the same as src1 or src2. */ 229 FAIL_IF(push_inst(compiler, ADDU | S(src1) | T(src2) | D(dst), DR(dst))); 230 } 231 if (op & SLJIT_SET_C) 232 FAIL_IF(push_inst(compiler, SLTU | S(dst) | TA(TMP_EREG1) | DA(TMP_EREG1), TMP_EREG1)); 233 234 FAIL_IF(push_inst(compiler, ADDU | S(dst) | TA(ULESS_FLAG) | D(dst), DR(dst))); 235 if (!(op & SLJIT_SET_C)) 236 return SLJIT_SUCCESS; 237 238 /* Set TMP_EREG2 (dst == 0) && (ULESS_FLAG == 1). */ 239 FAIL_IF(push_inst(compiler, SLTIU | S(dst) | TA(TMP_EREG2) | IMM(1), TMP_EREG2)); 240 FAIL_IF(push_inst(compiler, AND | SA(TMP_EREG2) | TA(ULESS_FLAG) | DA(TMP_EREG2), TMP_EREG2)); 241 /* Set carry flag. */ 242 return push_inst(compiler, OR | SA(TMP_EREG2) | TA(TMP_EREG1) | DA(ULESS_FLAG), ULESS_FLAG); 243 244 case SLJIT_SUB: 245 if ((flags & SRC2_IMM) && ((op & (SLJIT_SET_S | SLJIT_SET_U)) || src2 == SIMM_MIN)) { 246 FAIL_IF(push_inst(compiler, ADDIU | SA(0) | T(TMP_REG2) | IMM(src2), DR(TMP_REG2))); 247 src2 = TMP_REG2; 248 flags &= ~SRC2_IMM; 249 } 250 251 if (flags & SRC2_IMM) { 252 if (op & SLJIT_SET_O) { 253 FAIL_IF(push_inst(compiler, SRL | T(src1) | DA(TMP_EREG1) | SH_IMM(31), TMP_EREG1)); 254 if (src2 < 0) 255 FAIL_IF(push_inst(compiler, XORI | SA(TMP_EREG1) | TA(TMP_EREG1) | IMM(1), TMP_EREG1)); 256 if (src1 != dst) 257 overflow_ra = DR(src1); 258 else { 259 /* Rare ocasion. */ 260 FAIL_IF(push_inst(compiler, ADDU | S(src1) | TA(0) | DA(TMP_EREG2), TMP_EREG2)); 261 overflow_ra = TMP_EREG2; 262 } 263 } 264 if (op & SLJIT_SET_E) 265 FAIL_IF(push_inst(compiler, ADDIU | S(src1) | TA(EQUAL_FLAG) | IMM(-src2), EQUAL_FLAG)); 266 if (op & SLJIT_SET_C) 267 FAIL_IF(push_inst(compiler, SLTIU | S(src1) | TA(ULESS_FLAG) | IMM(src2), ULESS_FLAG)); 268 /* dst may be the same as src1 or src2. */ 269 if (CHECK_FLAGS(SLJIT_SET_E)) 270 FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(-src2), DR(dst))); 271 } 272 else { 273 if (op & SLJIT_SET_O) { 274 FAIL_IF(push_inst(compiler, XOR | S(src1) | T(src2) | DA(TMP_EREG1), TMP_EREG1)); 275 FAIL_IF(push_inst(compiler, SRL | TA(TMP_EREG1) | DA(TMP_EREG1) | SH_IMM(31), TMP_EREG1)); 276 if (src1 != dst) 277 overflow_ra = DR(src1); 278 else { 279 /* Rare ocasion. */ 280 FAIL_IF(push_inst(compiler, ADDU | S(src1) | TA(0) | DA(TMP_EREG2), TMP_EREG2)); 281 overflow_ra = TMP_EREG2; 282 } 283 } 284 if (op & SLJIT_SET_E) 285 FAIL_IF(push_inst(compiler, SUBU | S(src1) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG)); 286 if (op & (SLJIT_SET_U | SLJIT_SET_C)) 287 FAIL_IF(push_inst(compiler, SLTU | S(src1) | T(src2) | DA(ULESS_FLAG), ULESS_FLAG)); 288 if (op & SLJIT_SET_U) 289 FAIL_IF(push_inst(compiler, SLTU | S(src2) | T(src1) | DA(UGREATER_FLAG), UGREATER_FLAG)); 290 if (op & SLJIT_SET_S) { 291 FAIL_IF(push_inst(compiler, SLT | S(src1) | T(src2) | DA(LESS_FLAG), LESS_FLAG)); 292 FAIL_IF(push_inst(compiler, SLT | S(src2) | T(src1) | DA(GREATER_FLAG), GREATER_FLAG)); 293 } 294 /* dst may be the same as src1 or src2. */ 295 if (CHECK_FLAGS(SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_C)) 296 FAIL_IF(push_inst(compiler, SUBU | S(src1) | T(src2) | D(dst), DR(dst))); 297 } 298 299 if (op & SLJIT_SET_O) { 300 FAIL_IF(push_inst(compiler, XOR | S(dst) | TA(overflow_ra) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG)); 301 FAIL_IF(push_inst(compiler, SRL | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG) | SH_IMM(31), OVERFLOW_FLAG)); 302 return push_inst(compiler, MOVZ | SA(0) | TA(TMP_EREG1) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG); 303 } 304 return SLJIT_SUCCESS; 305 306 case SLJIT_SUBC: 307 if ((flags & SRC2_IMM) && src2 == SIMM_MIN) { 308 FAIL_IF(push_inst(compiler, ADDIU | SA(0) | T(TMP_REG2) | IMM(src2), DR(TMP_REG2))); 309 src2 = TMP_REG2; 310 flags &= ~SRC2_IMM; 311 } 312 313 if (flags & SRC2_IMM) { 314 if (op & SLJIT_SET_C) 315 FAIL_IF(push_inst(compiler, SLTIU | S(src1) | TA(TMP_EREG1) | IMM(-src2), TMP_EREG1)); 316 /* dst may be the same as src1 or src2. */ 317 FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(-src2), DR(dst))); 318 } 319 else { 320 if (op & SLJIT_SET_C) 321 FAIL_IF(push_inst(compiler, SLTU | S(src1) | T(src2) | DA(TMP_EREG1), TMP_EREG1)); 322 /* dst may be the same as src1 or src2. */ 323 FAIL_IF(push_inst(compiler, SUBU | S(src1) | T(src2) | D(dst), DR(dst))); 324 } 325 326 if (op & SLJIT_SET_C) 327 FAIL_IF(push_inst(compiler, MOVZ | SA(ULESS_FLAG) | T(dst) | DA(TMP_EREG1), TMP_EREG1)); 328 329 FAIL_IF(push_inst(compiler, SUBU | S(dst) | TA(ULESS_FLAG) | D(dst), DR(dst))); 330 331 if (op & SLJIT_SET_C) 332 FAIL_IF(push_inst(compiler, ADDU | SA(TMP_EREG1) | TA(0) | DA(ULESS_FLAG), ULESS_FLAG)); 333 334 return SLJIT_SUCCESS; 335 336 case SLJIT_MUL: 337 SLJIT_ASSERT(!(flags & SRC2_IMM)); 338 if (!(op & SLJIT_SET_O)) { 339 #if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) 340 return push_inst(compiler, MUL | S(src1) | T(src2) | D(dst), DR(dst)); 341 #else 342 FAIL_IF(push_inst(compiler, MULT | S(src1) | T(src2), MOVABLE_INS)); 343 return push_inst(compiler, MFLO | D(dst), DR(dst)); 344 #endif 345 } 346 FAIL_IF(push_inst(compiler, MULT | S(src1) | T(src2), MOVABLE_INS)); 347 FAIL_IF(push_inst(compiler, MFHI | DA(TMP_EREG1), TMP_EREG1)); 348 FAIL_IF(push_inst(compiler, MFLO | D(dst), DR(dst))); 349 FAIL_IF(push_inst(compiler, SRA | T(dst) | DA(TMP_EREG2) | SH_IMM(31), TMP_EREG2)); 350 return push_inst(compiler, SUBU | SA(TMP_EREG1) | TA(TMP_EREG2) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG); 351 352 case SLJIT_AND: 353 EMIT_LOGICAL(ANDI, AND); 354 return SLJIT_SUCCESS; 355 356 case SLJIT_OR: 357 EMIT_LOGICAL(ORI, OR); 358 return SLJIT_SUCCESS; 359 360 case SLJIT_XOR: 361 EMIT_LOGICAL(XORI, XOR); 362 return SLJIT_SUCCESS; 363 364 case SLJIT_SHL: 365 EMIT_SHIFT(SLL, SLLV); 366 return SLJIT_SUCCESS; 367 368 case SLJIT_LSHR: 369 EMIT_SHIFT(SRL, SRLV); 370 return SLJIT_SUCCESS; 371 372 case SLJIT_ASHR: 373 EMIT_SHIFT(SRA, SRAV); 374 return SLJIT_SUCCESS; 375 } 376 377 SLJIT_ASSERT_STOP(); 378 return SLJIT_SUCCESS; 379 } 380 381 static SLJIT_INLINE int emit_const(struct sljit_compiler *compiler, int dst, sljit_w init_value) 382 { 383 FAIL_IF(push_inst(compiler, LUI | T(dst) | IMM(init_value >> 16), DR(dst))); 384 return push_inst(compiler, ORI | S(dst) | T(dst) | IMM(init_value), DR(dst)); 385 } 386 387 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr) 388 { 389 sljit_ins *inst = (sljit_ins*)addr; 390 391 inst[0] = (inst[0] & 0xffff0000) | ((new_addr >> 16) & 0xffff); 392 inst[1] = (inst[1] & 0xffff0000) | (new_addr & 0xffff); 393 SLJIT_CACHE_FLUSH(inst, inst + 2); 394 } 395 396 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant) 397 { 398 sljit_ins *inst = (sljit_ins*)addr; 399 400 inst[0] = (inst[0] & 0xffff0000) | ((new_constant >> 16) & 0xffff); 401 inst[1] = (inst[1] & 0xffff0000) | (new_constant & 0xffff); 402 SLJIT_CACHE_FLUSH(inst, inst + 2); 403 } 404
Indexes created Sun Oct 19 18:09:56 GMT 2025