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_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 30 | return "mips-32"; |
| 31 | #else |
| 32 | #error "mips-64 is not yet supported" |
| 33 | #endif |
| 34 | } |
| 35 | |
| 36 | /* Latest MIPS architecture. */ |
| 37 | /* Detect SLJIT_MIPS_32_64 */ |
| 38 | |
| 39 | /* Length of an instruction word |
| 40 | Both for mips-32 and mips-64 */ |
| 41 | typedef sljit_ui sljit_ins; |
| 42 | |
| 43 | #define TMP_REG1 (SLJIT_NO_REGISTERS + 1) |
| 44 | #define TMP_REG2 (SLJIT_NO_REGISTERS + 2) |
| 45 | #define TMP_REG3 (SLJIT_NO_REGISTERS + 3) |
| 46 | #define REAL_STACK_PTR (SLJIT_NO_REGISTERS + 4) |
| 47 | |
| 48 | /* For position independent code, t9 must contain the function address. */ |
| 49 | #define PIC_ADDR_REG TMP_REG2 |
| 50 | |
| 51 | /* TMP_EREG1 is used mainly for literal encoding on 64 bit. */ |
| 52 | #define TMP_EREG1 15 |
| 53 | #define TMP_EREG2 24 |
| 54 | /* Floating point status register. */ |
| 55 | #define FCSR_REG 31 |
| 56 | /* Return address register. */ |
| 57 | #define RETURN_ADDR_REG 31 |
| 58 | |
| 59 | /* Flags are keept in volatile registers. */ |
| 60 | #define EQUAL_FLAG 7 |
| 61 | /* And carry flag as well. */ |
| 62 | #define ULESS_FLAG 10 |
| 63 | #define UGREATER_FLAG 11 |
| 64 | #define LESS_FLAG 12 |
| 65 | #define GREATER_FLAG 13 |
| 66 | #define OVERFLOW_FLAG 14 |
| 67 | |
| 68 | #define TMP_FREG1 (SLJIT_FLOAT_REG4 + 1) |
| 69 | #define TMP_FREG2 (SLJIT_FLOAT_REG4 + 2) |
| 70 | |
| 71 | /* --------------------------------------------------------------------- */ |
| 72 | /* Instrucion forms */ |
| 73 | /* --------------------------------------------------------------------- */ |
| 74 | |
| 75 | #define S(s) (reg_map[s] << 21) |
| 76 | #define T(t) (reg_map[t] << 16) |
| 77 | #define D(d) (reg_map[d] << 11) |
| 78 | /* Absolute registers. */ |
| 79 | #define SA(s) ((s) << 21) |
| 80 | #define TA(t) ((t) << 16) |
| 81 | #define DA(d) ((d) << 11) |
| 82 | #define FT(t) ((t) << (16 + 1)) |
| 83 | #define FS(s) ((s) << (11 + 1)) |
| 84 | #define FD(d) ((d) << (6 + 1)) |
| 85 | #define IMM(imm) ((imm) & 0xffff) |
| 86 | #define SH_IMM(imm) ((imm & 0x1f) << 6) |
| 87 | |
| 88 | #define DR(dr) (reg_map[dr]) |
| 89 | #define HI(opcode) ((opcode) << 26) |
| 90 | #define LO(opcode) (opcode) |
| 91 | #define FMT_D (17 << 21) |
| 92 | |
| 93 | #define ABS_D (HI(17) | FMT_D | LO(5)) |
| 94 | #define ADD_D (HI(17) | FMT_D | LO(0)) |
| 95 | #define ADDU (HI(0) | LO(33)) |
| 96 | #define ADDIU (HI(9)) |
| 97 | #define AND (HI(0) | LO(36)) |
| 98 | #define ANDI (HI(12)) |
| 99 | #define B (HI(4)) |
| 100 | #define BAL (HI(1) | (17 << 16)) |
| 101 | #define BC1F (HI(17) | (8 << 21)) |
| 102 | #define BC1T (HI(17) | (8 << 21) | (1 << 16)) |
| 103 | #define BEQ (HI(4)) |
| 104 | #define BGEZ (HI(1) | (1 << 16)) |
| 105 | #define BGTZ (HI(7)) |
| 106 | #define BLEZ (HI(6)) |
| 107 | #define BLTZ (HI(1) | (0 << 16)) |
| 108 | #define BNE (HI(5)) |
| 109 | #define BREAK (HI(0) | LO(13)) |
| 110 | #define C_UN_D (HI(17) | FMT_D | LO(49)) |
| 111 | #define C_UEQ_D (HI(17) | FMT_D | LO(51)) |
| 112 | #define C_ULT_D (HI(17) | FMT_D | LO(53)) |
| 113 | #define DIV_D (HI(17) | FMT_D | LO(3)) |
| 114 | #define J (HI(2)) |
| 115 | #define JAL (HI(3)) |
| 116 | #define JALR (HI(0) | LO(9)) |
| 117 | #define JR (HI(0) | LO(8)) |
| 118 | #define LD (HI(55)) |
| 119 | #define LDC1 (HI(53)) |
| 120 | #define LUI (HI(15)) |
| 121 | #define LW (HI(35)) |
| 122 | #define NEG_D (HI(17) | FMT_D | LO(7)) |
| 123 | #define MFHI (HI(0) | LO(16)) |
| 124 | #define MFLO (HI(0) | LO(18)) |
| 125 | #define MOV_D (HI(17) | FMT_D | LO(6)) |
| 126 | #define CFC1 (HI(17) | (2 << 21)) |
| 127 | #define MOVN (HI(0) | LO(11)) |
| 128 | #define MOVZ (HI(0) | LO(10)) |
| 129 | #define MUL_D (HI(17) | FMT_D | LO(2)) |
| 130 | #define MULT (HI(0) | LO(24)) |
| 131 | #define NOP (HI(0) | LO(0)) |
| 132 | #define NOR (HI(0) | LO(39)) |
| 133 | #define OR (HI(0) | LO(37)) |
| 134 | #define ORI (HI(13)) |
| 135 | #define SD (HI(63)) |
| 136 | #define SDC1 (HI(61)) |
| 137 | #define SLT (HI(0) | LO(42)) |
| 138 | #define SLTI (HI(10)) |
| 139 | #define SLTIU (HI(11)) |
| 140 | #define SLTU (HI(0) | LO(43)) |
| 141 | #define SLL (HI(0) | LO(0)) |
| 142 | #define SLLV (HI(0) | LO(4)) |
| 143 | #define SRL (HI(0) | LO(2)) |
| 144 | #define SRLV (HI(0) | LO(6)) |
| 145 | #define SRA (HI(0) | LO(3)) |
| 146 | #define SRAV (HI(0) | LO(7)) |
| 147 | #define SUB_D (HI(17) | FMT_D | LO(1)) |
| 148 | #define SUBU (HI(0) | LO(35)) |
| 149 | #define SW (HI(43)) |
| 150 | #define XOR (HI(0) | LO(38)) |
| 151 | #define XORI (HI(14)) |
| 152 | |
| 153 | #if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) |
| 154 | #define CLZ (HI(28) | LO(32)) |
| 155 | #define MUL (HI(28) | LO(2)) |
| 156 | #define SEB (HI(31) | (16 << 6) | LO(32)) |
| 157 | #define SEH (HI(31) | (24 << 6) | LO(32)) |
| 158 | #endif |
| 159 | |
| 160 | #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 161 | #define ADDU_W ADDU |
| 162 | #define ADDIU_W ADDIU |
| 163 | #define SLL_W SLL |
| 164 | #define SUBU_W SUBU |
| 165 | #else |
| 166 | #define ADDU_W DADDU |
| 167 | #define ADDIU_W DADDIU |
| 168 | #define SLL_W DSLL |
| 169 | #define SUBU_W DSUBU |
| 170 | #endif |
| 171 | |
| 172 | #define SIMM_MAX (0x7fff) |
| 173 | #define SIMM_MIN (-0x8000) |
| 174 | #define UIMM_MAX (0xffff) |
| 175 | |
| 176 | static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 6] = { |
| 177 | 0, 2, 5, 6, 3, 8, 17, 18, 19, 20, 21, 16, 4, 25, 9, 29 |
| 178 | }; |
| 179 | |
| 180 | /* dest_reg is the absolute name of the register |
| 181 | Useful for reordering instructions in the delay slot. */ |
| 182 | static int push_inst(struct sljit_compiler *compiler, sljit_ins ins, int delay_slot) |
| 183 | { |
| 184 | sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins)); |
| 185 | FAIL_IF(!ptr); |
| 186 | *ptr = ins; |
| 187 | compiler->size++; |
| 188 | compiler->delay_slot = delay_slot; |
| 189 | return SLJIT_SUCCESS; |
| 190 | } |
| 191 | |
| 192 | static SLJIT_INLINE sljit_ins invert_branch(int flags) |
| 193 | { |
| 194 | return (flags & IS_BIT26_COND) ? (1 << 26) : (1 << 16); |
| 195 | } |
| 196 | |
| 197 | static SLJIT_INLINE sljit_ins* optimize_jump(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code) |
| 198 | { |
| 199 | sljit_w diff; |
| 200 | sljit_uw target_addr; |
| 201 | sljit_ins *inst; |
| 202 | sljit_ins saved_inst; |
| 203 | |
| 204 | if (jump->flags & SLJIT_REWRITABLE_JUMP) |
| 205 | return code_ptr; |
| 206 | |
| 207 | if (jump->flags & JUMP_ADDR) |
| 208 | target_addr = jump->u.target; |
| 209 | else { |
| 210 | SLJIT_ASSERT(jump->flags & JUMP_LABEL); |
| 211 | target_addr = (sljit_uw)(code + jump->u.label->size); |
| 212 | } |
| 213 | inst = (sljit_ins*)jump->addr; |
| 214 | if (jump->flags & IS_COND) |
| 215 | inst--; |
| 216 | |
| 217 | /* B instructions. */ |
| 218 | if (jump->flags & IS_MOVABLE) { |
| 219 | diff = ((sljit_w)target_addr - (sljit_w)(inst)) >> 2; |
| 220 | if (diff <= SIMM_MAX && diff >= SIMM_MIN) { |
| 221 | jump->flags |= PATCH_B; |
| 222 | |
| 223 | if (!(jump->flags & IS_COND)) { |
| 224 | inst[0] = inst[-1]; |
| 225 | inst[-1] = (jump->flags & IS_JAL) ? BAL : B; |
| 226 | jump->addr -= sizeof(sljit_ins); |
| 227 | return inst; |
| 228 | } |
| 229 | saved_inst = inst[0]; |
| 230 | inst[0] = inst[-1]; |
| 231 | inst[-1] = saved_inst ^ invert_branch(jump->flags); |
| 232 | jump->addr -= 2 * sizeof(sljit_ins); |
| 233 | return inst; |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | diff = ((sljit_w)target_addr - (sljit_w)(inst + 1)) >> 2; |
| 238 | if (diff <= SIMM_MAX && diff >= SIMM_MIN) { |
| 239 | jump->flags |= PATCH_B; |
| 240 | |
| 241 | if (!(jump->flags & IS_COND)) { |
| 242 | inst[0] = (jump->flags & IS_JAL) ? BAL : B; |
| 243 | inst[1] = NOP; |
| 244 | return inst + 1; |
| 245 | } |
| 246 | inst[0] = inst[0] ^ invert_branch(jump->flags); |
| 247 | inst[1] = NOP; |
| 248 | jump->addr -= sizeof(sljit_ins); |
| 249 | return inst + 1; |
| 250 | } |
| 251 | |
| 252 | if (jump->flags & IS_COND) { |
| 253 | if ((target_addr & ~0xfffffff) == ((jump->addr + 3 * sizeof(sljit_ins)) & ~0xfffffff)) { |
| 254 | jump->flags |= PATCH_J; |
| 255 | inst[0] = (inst[0] & 0xffff0000) | 3; |
| 256 | inst[1] = NOP; |
| 257 | inst[2] = J; |
| 258 | inst[3] = NOP; |
| 259 | jump->addr += sizeof(sljit_ins); |
| 260 | return inst + 3; |
| 261 | } |
| 262 | return code_ptr; |
| 263 | } |
| 264 | |
| 265 | /* J instuctions. */ |
| 266 | if (jump->flags & IS_MOVABLE) { |
| 267 | if ((target_addr & ~0xfffffff) == (jump->addr & ~0xfffffff)) { |
| 268 | jump->flags |= PATCH_J; |
| 269 | inst[0] = inst[-1]; |
| 270 | inst[-1] = (jump->flags & IS_JAL) ? JAL : J; |
| 271 | jump->addr -= sizeof(sljit_ins); |
| 272 | return inst; |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | if ((target_addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)) { |
| 277 | jump->flags |= PATCH_J; |
| 278 | inst[0] = (jump->flags & IS_JAL) ? JAL : J; |
| 279 | inst[1] = NOP; |
| 280 | return inst + 1; |
| 281 | } |
| 282 | |
| 283 | return code_ptr; |
| 284 | } |
| 285 | |
| 286 | #ifdef __GNUC__ |
| 287 | static __attribute__ ((noinline)) void sljit_cache_flush(void* code, void* code_ptr) |
| 288 | { |
| 289 | SLJIT_CACHE_FLUSH(code, code_ptr); |
| 290 | } |
| 291 | #endif |
| 292 | |
| 293 | SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler) |
| 294 | { |
| 295 | struct sljit_memory_fragment *buf; |
| 296 | sljit_ins *code; |
| 297 | sljit_ins *code_ptr; |
| 298 | sljit_ins *buf_ptr; |
| 299 | sljit_ins *buf_end; |
| 300 | sljit_uw word_count; |
| 301 | sljit_uw addr; |
| 302 | |
| 303 | struct sljit_label *label; |
| 304 | struct sljit_jump *jump; |
| 305 | struct sljit_const *const_; |
| 306 | |
| 307 | CHECK_ERROR_PTR(); |
| 308 | check_sljit_generate_code(compiler); |
| 309 | reverse_buf(compiler); |
| 310 | |
| 311 | code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins)); |
| 312 | PTR_FAIL_WITH_EXEC_IF(code); |
| 313 | buf = compiler->buf; |
| 314 | |
| 315 | code_ptr = code; |
| 316 | word_count = 0; |
| 317 | label = compiler->labels; |
| 318 | jump = compiler->jumps; |
| 319 | const_ = compiler->consts; |
| 320 | do { |
| 321 | buf_ptr = (sljit_ins*)buf->memory; |
| 322 | buf_end = buf_ptr + (buf->used_size >> 2); |
| 323 | do { |
| 324 | *code_ptr = *buf_ptr++; |
| 325 | SLJIT_ASSERT(!label || label->size >= word_count); |
| 326 | SLJIT_ASSERT(!jump || jump->addr >= word_count); |
| 327 | SLJIT_ASSERT(!const_ || const_->addr >= word_count); |
| 328 | /* These structures are ordered by their address. */ |
| 329 | if (label && label->size == word_count) { |
| 330 | /* Just recording the address. */ |
| 331 | label->addr = (sljit_uw)code_ptr; |
| 332 | label->size = code_ptr - code; |
| 333 | label = label->next; |
| 334 | } |
| 335 | if (jump && jump->addr == word_count) { |
| 336 | #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 337 | jump->addr = (sljit_uw)(code_ptr - 3); |
| 338 | #else |
| 339 | jump->addr = (sljit_uw)(code_ptr - 6); |
| 340 | #endif |
| 341 | code_ptr = optimize_jump(jump, code_ptr, code); |
| 342 | jump = jump->next; |
| 343 | } |
| 344 | if (const_ && const_->addr == word_count) { |
| 345 | /* Just recording the address. */ |
| 346 | const_->addr = (sljit_uw)code_ptr; |
| 347 | const_ = const_->next; |
| 348 | } |
| 349 | code_ptr ++; |
| 350 | word_count ++; |
| 351 | } while (buf_ptr < buf_end); |
| 352 | |
| 353 | buf = buf->next; |
| 354 | } while (buf); |
| 355 | |
| 356 | if (label && label->size == word_count) { |
| 357 | label->addr = (sljit_uw)code_ptr; |
| 358 | label->size = code_ptr - code; |
| 359 | label = label->next; |
| 360 | } |
| 361 | |
| 362 | SLJIT_ASSERT(!label); |
| 363 | SLJIT_ASSERT(!jump); |
| 364 | SLJIT_ASSERT(!const_); |
| 365 | SLJIT_ASSERT(code_ptr - code <= (int)compiler->size); |
| 366 | |
| 367 | jump = compiler->jumps; |
| 368 | while (jump) { |
| 369 | do { |
| 370 | addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target; |
| 371 | buf_ptr = (sljit_ins*)jump->addr; |
| 372 | |
| 373 | if (jump->flags & PATCH_B) { |
| 374 | addr = (sljit_w)(addr - (jump->addr + sizeof(sljit_ins))) >> 2; |
| 375 | SLJIT_ASSERT((sljit_w)addr <= SIMM_MAX && (sljit_w)addr >= SIMM_MIN); |
| 376 | buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | (addr & 0xffff); |
| 377 | break; |
| 378 | } |
| 379 | if (jump->flags & PATCH_J) { |
| 380 | SLJIT_ASSERT((addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)); |
| 381 | buf_ptr[0] |= (addr >> 2) & 0x03ffffff; |
| 382 | break; |
| 383 | } |
| 384 | |
| 385 | /* Set the fields of immediate loads. */ |
| 386 | #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 387 | buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff); |
| 388 | buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff); |
| 389 | #else |
| 390 | buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff); |
| 391 | buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff); |
| 392 | buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff); |
| 393 | buf_ptr[4] = (buf_ptr[4] & 0xffff0000) | (addr & 0xffff); |
| 394 | #endif |
| 395 | } while (0); |
| 396 | jump = jump->next; |
| 397 | } |
| 398 | |
| 399 | compiler->error = SLJIT_ERR_COMPILED; |
| 400 | compiler->executable_size = compiler->size * sizeof(sljit_ins); |
| 401 | #ifndef __GNUC__ |
| 402 | SLJIT_CACHE_FLUSH(code, code_ptr); |
| 403 | #else |
| 404 | /* GCC workaround for invalid code generation with -O2. */ |
| 405 | sljit_cache_flush(code, code_ptr); |
| 406 | #endif |
| 407 | return code; |
| 408 | } |
| 409 | |
| 410 | /* Creates an index in data_transfer_insts array. */ |
| 411 | #define WORD_DATA 0x00 |
| 412 | #define BYTE_DATA 0x01 |
| 413 | #define HALF_DATA 0x02 |
| 414 | #define INT_DATA 0x03 |
| 415 | #define SIGNED_DATA 0x04 |
| 416 | #define LOAD_DATA 0x08 |
| 417 | |
| 418 | #define MEM_MASK 0x0f |
| 419 | |
| 420 | #define WRITE_BACK 0x00010 |
| 421 | #define ARG_TEST 0x00020 |
| 422 | #define CUMULATIVE_OP 0x00040 |
| 423 | #define LOGICAL_OP 0x00080 |
| 424 | #define IMM_OP 0x00100 |
| 425 | #define SRC2_IMM 0x00200 |
| 426 | |
| 427 | #define UNUSED_DEST 0x00400 |
| 428 | #define REG_DEST 0x00800 |
| 429 | #define REG1_SOURCE 0x01000 |
| 430 | #define REG2_SOURCE 0x02000 |
| 431 | #define SLOW_SRC1 0x04000 |
| 432 | #define SLOW_SRC2 0x08000 |
| 433 | #define SLOW_DEST 0x10000 |
| 434 | |
| 435 | /* Only these flags are set. UNUSED_DEST is not set when no flags should be set. */ |
| 436 | #define CHECK_FLAGS(list) \ |
| 437 | (!(flags & UNUSED_DEST) || (op & GET_FLAGS(~(list)))) |
| 438 | |
| 439 | #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 440 | #include "sljitNativeMIPS_32.c" |
| 441 | #else |
| 442 | #include "sljitNativeMIPS_64.c" |
| 443 | #endif |
| 444 | |
| 445 | #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 446 | #define STACK_STORE SW |
| 447 | #define STACK_LOAD LW |
| 448 | #else |
| 449 | #define STACK_STORE SD |
| 450 | #define STACK_LOAD LD |
| 451 | #endif |
| 452 | |
| 453 | static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags, |
| 454 | int dst, sljit_w dstw, |
| 455 | int src1, sljit_w src1w, |
| 456 | int src2, sljit_w src2w); |
| 457 | |
| 458 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int generals, int local_size) |
| 459 | { |
| 460 | sljit_ins base; |
| 461 | |
| 462 | CHECK_ERROR(); |
| 463 | check_sljit_emit_enter(compiler, args, temporaries, generals, local_size); |
| 464 | |
| 465 | compiler->temporaries = temporaries; |
| 466 | compiler->generals = generals; |
| 467 | |
| 468 | compiler->has_locals = local_size > 0; |
| 469 | local_size += (generals + 2 + 4) * sizeof(sljit_w); |
| 470 | local_size = (local_size + 15) & ~0xf; |
| 471 | compiler->local_size = local_size; |
| 472 | |
| 473 | if (local_size <= SIMM_MAX) { |
| 474 | /* Frequent case. */ |
| 475 | FAIL_IF(push_inst(compiler, ADDIU_W | S(REAL_STACK_PTR) | T(REAL_STACK_PTR) | IMM(-local_size), DR(REAL_STACK_PTR))); |
| 476 | base = S(REAL_STACK_PTR); |
| 477 | } |
| 478 | else { |
| 479 | FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size)); |
| 480 | FAIL_IF(push_inst(compiler, ADDU_W | S(REAL_STACK_PTR) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); |
| 481 | FAIL_IF(push_inst(compiler, SUBU_W | S(REAL_STACK_PTR) | T(TMP_REG1) | D(REAL_STACK_PTR), DR(REAL_STACK_PTR))); |
| 482 | base = S(TMP_REG2); |
| 483 | local_size = 0; |
| 484 | } |
| 485 | |
| 486 | FAIL_IF(push_inst(compiler, STACK_STORE | base | TA(RETURN_ADDR_REG) | IMM(local_size - 1 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| 487 | if (compiler->has_locals) |
| 488 | FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_LOCALS_REG) | IMM(local_size - 2 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| 489 | if (generals >= 1) |
| 490 | FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_REG1) | IMM(local_size - 3 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| 491 | if (generals >= 2) |
| 492 | FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_REG2) | IMM(local_size - 4 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| 493 | if (generals >= 3) |
| 494 | FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_REG3) | IMM(local_size - 5 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| 495 | if (generals >= 4) |
| 496 | FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_EREG1) | IMM(local_size - 6 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| 497 | if (generals >= 5) |
| 498 | FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_EREG2) | IMM(local_size - 7 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| 499 | |
| 500 | if (compiler->has_locals) |
| 501 | FAIL_IF(push_inst(compiler, ADDIU_W | S(REAL_STACK_PTR) | T(SLJIT_LOCALS_REG) | IMM(4 * sizeof(sljit_w)), DR(SLJIT_LOCALS_REG))); |
| 502 | |
| 503 | if (args >= 1) |
| 504 | FAIL_IF(push_inst(compiler, ADDU_W | SA(4) | TA(0) | D(SLJIT_GENERAL_REG1), DR(SLJIT_GENERAL_REG1))); |
| 505 | if (args >= 2) |
| 506 | FAIL_IF(push_inst(compiler, ADDU_W | SA(5) | TA(0) | D(SLJIT_GENERAL_REG2), DR(SLJIT_GENERAL_REG2))); |
| 507 | if (args >= 3) |
| 508 | FAIL_IF(push_inst(compiler, ADDU_W | SA(6) | TA(0) | D(SLJIT_GENERAL_REG3), DR(SLJIT_GENERAL_REG3))); |
| 509 | |
| 510 | return SLJIT_SUCCESS; |
| 511 | } |
| 512 | |
| 513 | SLJIT_API_FUNC_ATTRIBUTE void sljit_fake_enter(struct sljit_compiler *compiler, int args, int temporaries, int generals, int local_size) |
| 514 | { |
| 515 | CHECK_ERROR_VOID(); |
| 516 | check_sljit_fake_enter(compiler, args, temporaries, generals, local_size); |
| 517 | |
| 518 | compiler->temporaries = temporaries; |
| 519 | compiler->generals = generals; |
| 520 | |
| 521 | compiler->has_locals = local_size > 0; |
| 522 | local_size += (generals + 2 + 4) * sizeof(sljit_w); |
| 523 | compiler->local_size = (local_size + 15) & ~0xf; |
| 524 | } |
| 525 | |
| 526 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int src, sljit_w srcw) |
| 527 | { |
| 528 | int local_size; |
| 529 | sljit_ins base; |
| 530 | |
| 531 | CHECK_ERROR(); |
| 532 | check_sljit_emit_return(compiler, src, srcw); |
| 533 | |
| 534 | local_size = compiler->local_size; |
| 535 | |
| 536 | if (src != SLJIT_UNUSED && src != SLJIT_RETURN_REG) |
| 537 | FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, SLJIT_RETURN_REG, 0, TMP_REG1, 0, src, srcw)); |
| 538 | |
| 539 | if (local_size <= SIMM_MAX) |
| 540 | base = S(REAL_STACK_PTR); |
| 541 | else { |
| 542 | FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size)); |
| 543 | FAIL_IF(push_inst(compiler, ADDU_W | S(REAL_STACK_PTR) | T(TMP_REG1) | D(TMP_REG1), DR(TMP_REG1))); |
| 544 | base = S(TMP_REG1); |
| 545 | local_size = 0; |
| 546 | } |
| 547 | |
| 548 | FAIL_IF(push_inst(compiler, STACK_LOAD | base | TA(RETURN_ADDR_REG) | IMM(local_size - 1 * (int)sizeof(sljit_w)), RETURN_ADDR_REG)); |
| 549 | if (compiler->generals >= 5) |
| 550 | FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_EREG2) | IMM(local_size - 7 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_EREG2))); |
| 551 | if (compiler->generals >= 4) |
| 552 | FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_EREG1) | IMM(local_size - 6 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_EREG1))); |
| 553 | if (compiler->generals >= 3) |
| 554 | FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_REG3) | IMM(local_size - 5 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_REG3))); |
| 555 | if (compiler->generals >= 2) |
| 556 | FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_REG2) | IMM(local_size - 4 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_REG2))); |
| 557 | if (compiler->generals >= 1) |
| 558 | FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_REG1) | IMM(local_size - 3 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_REG1))); |
| 559 | if (compiler->has_locals) |
| 560 | FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_LOCALS_REG) | IMM(local_size - 2 * (int)sizeof(sljit_w)), DR(SLJIT_LOCALS_REG))); |
| 561 | |
| 562 | FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS)); |
| 563 | if (compiler->local_size <= SIMM_MAX) |
| 564 | return push_inst(compiler, ADDIU_W | S(REAL_STACK_PTR) | T(REAL_STACK_PTR) | IMM(compiler->local_size), UNMOVABLE_INS); |
| 565 | else |
| 566 | return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(REAL_STACK_PTR), UNMOVABLE_INS); |
| 567 | } |
| 568 | |
| 569 | #undef STACK_STORE |
| 570 | #undef STACK_LOAD |
| 571 | |
| 572 | /* --------------------------------------------------------------------- */ |
| 573 | /* Operators */ |
| 574 | /* --------------------------------------------------------------------- */ |
| 575 | |
| 576 | #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 577 | #define ARCH_DEPEND(a, b) a |
| 578 | #else |
| 579 | #define ARCH_DEPEND(a, b) b |
| 580 | #endif |
| 581 | |
| 582 | static SLJIT_CONST sljit_ins data_transfer_insts[16] = { |
| 583 | /* s u w */ ARCH_DEPEND(HI(43) /* sw */, HI(63) /* sd */), |
| 584 | /* s u b */ HI(40) /* sb */, |
| 585 | /* s u h */ HI(41) /* sh*/, |
| 586 | /* s u i */ HI(43) /* sw */, |
| 587 | |
| 588 | /* s s w */ ARCH_DEPEND(HI(43) /* sw */, HI(63) /* sd */), |
| 589 | /* s s b */ HI(40) /* sb */, |
| 590 | /* s s h */ HI(41) /* sh*/, |
| 591 | /* s s i */ HI(43) /* sw */, |
| 592 | |
| 593 | /* l u w */ ARCH_DEPEND(HI(35) /* lw */, HI(55) /* ld */), |
| 594 | /* l u b */ HI(36) /* lbu */, |
| 595 | /* l u h */ HI(37) /* lhu */, |
| 596 | /* l u i */ ARCH_DEPEND(HI(35) /* lw */, HI(39) /* lwu */), |
| 597 | |
| 598 | /* l s w */ ARCH_DEPEND(HI(35) /* lw */, HI(55) /* ld */), |
| 599 | /* l s b */ HI(32) /* lb */, |
| 600 | /* l s h */ HI(33) /* lh */, |
| 601 | /* l s i */ HI(35) /* lw */, |
| 602 | }; |
| 603 | |
| 604 | /* reg_ar is an absoulute register! */ |
| 605 | |
| 606 | /* Can perform an operation using at most 1 instruction. */ |
| 607 | static int getput_arg_fast(struct sljit_compiler *compiler, int flags, int reg_ar, int arg, sljit_w argw) |
| 608 | { |
| 609 | SLJIT_ASSERT(arg & SLJIT_MEM); |
| 610 | |
| 611 | if (!(flags & WRITE_BACK) && !(arg & 0xf0) && argw <= SIMM_MAX && argw >= SIMM_MIN) { |
| 612 | /* Works for both absoulte and relative addresses. */ |
| 613 | if (SLJIT_UNLIKELY(flags & ARG_TEST)) |
| 614 | return 1; |
| 615 | FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(arg & 0xf) | TA(reg_ar) | IMM(argw), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS)); |
| 616 | return -1; |
| 617 | } |
| 618 | return (flags & ARG_TEST) ? SLJIT_SUCCESS : 0; |
| 619 | } |
| 620 | |
| 621 | /* See getput_arg below. |
| 622 | Note: can_cache is called only for binary operators. Those |
| 623 | operators always uses word arguments without write back. */ |
| 624 | static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw) |
| 625 | { |
| 626 | if (!(next_arg & SLJIT_MEM)) |
| 627 | return 0; |
| 628 | |
| 629 | /* Simple operation except for updates. */ |
| 630 | if (arg & 0xf0) { |
| 631 | argw &= 0x3; |
| 632 | next_argw &= 0x3; |
| 633 | if (argw && argw == next_argw && (arg == next_arg || (arg & 0xf0) == (next_arg & 0xf0))) |
| 634 | return 1; |
| 635 | return 0; |
| 636 | } |
| 637 | |
| 638 | if (arg == next_arg) { |
| 639 | if (((sljit_uw)(next_argw - argw) <= SIMM_MAX && (sljit_uw)(next_argw - argw) >= SIMM_MIN)) |
| 640 | return 1; |
| 641 | return 0; |
| 642 | } |
| 643 | |
| 644 | return 0; |
| 645 | } |
| 646 | |
| 647 | /* Emit the necessary instructions. See can_cache above. */ |
| 648 | static int getput_arg(struct sljit_compiler *compiler, int flags, int reg_ar, int arg, sljit_w argw, int next_arg, sljit_w next_argw) |
| 649 | { |
| 650 | int tmp_ar; |
| 651 | int base; |
| 652 | |
| 653 | SLJIT_ASSERT(arg & SLJIT_MEM); |
| 654 | if (!(next_arg & SLJIT_MEM)) { |
| 655 | next_arg = 0; |
| 656 | next_argw = 0; |
| 657 | } |
| 658 | |
| 659 | tmp_ar = (flags & LOAD_DATA) ? reg_ar : DR(TMP_REG3); |
| 660 | base = arg & 0xf; |
| 661 | |
| 662 | if (SLJIT_UNLIKELY(arg & 0xf0)) { |
| 663 | argw &= 0x3; |
| 664 | if ((flags & WRITE_BACK) && reg_ar == DR(base)) { |
| 665 | SLJIT_ASSERT(!(flags & LOAD_DATA) && DR(TMP_REG1) != reg_ar); |
| 666 | FAIL_IF(push_inst(compiler, ADDU_W | SA(reg_ar) | TA(0) | D(TMP_REG1), DR(TMP_REG1))); |
| 667 | reg_ar = DR(TMP_REG1); |
| 668 | } |
| 669 | |
| 670 | /* Using the cache. */ |
| 671 | if (argw == compiler->cache_argw) { |
| 672 | if (!(flags & WRITE_BACK)) { |
| 673 | if (arg == compiler->cache_arg) |
| 674 | return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| 675 | if ((SLJIT_MEM | (arg & 0xf0)) == compiler->cache_arg) { |
| 676 | if (arg == next_arg && argw == (next_argw & 0x3)) { |
| 677 | compiler->cache_arg = arg; |
| 678 | compiler->cache_argw = argw; |
| 679 | FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(TMP_REG3), DR(TMP_REG3))); |
| 680 | return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| 681 | } |
| 682 | FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | DA(tmp_ar), tmp_ar)); |
| 683 | return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| 684 | } |
| 685 | } |
| 686 | else { |
| 687 | if ((SLJIT_MEM | (arg & 0xf0)) == compiler->cache_arg) { |
| 688 | FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); |
| 689 | return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| 690 | } |
| 691 | } |
| 692 | } |
| 693 | |
| 694 | if (SLJIT_UNLIKELY(argw)) { |
| 695 | compiler->cache_arg = SLJIT_MEM | (arg & 0xf0); |
| 696 | compiler->cache_argw = argw; |
| 697 | FAIL_IF(push_inst(compiler, SLL_W | T((arg >> 4) & 0xf) | D(TMP_REG3) | SH_IMM(argw), DR(TMP_REG3))); |
| 698 | } |
| 699 | |
| 700 | if (!(flags & WRITE_BACK)) { |
| 701 | if (arg == next_arg && argw == (next_argw & 0x3)) { |
| 702 | compiler->cache_arg = arg; |
| 703 | compiler->cache_argw = argw; |
| 704 | FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? ((arg >> 4) & 0xf) : TMP_REG3) | D(TMP_REG3), DR(TMP_REG3))); |
| 705 | tmp_ar = DR(TMP_REG3); |
| 706 | } |
| 707 | else |
| 708 | FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? ((arg >> 4) & 0xf) : TMP_REG3) | DA(tmp_ar), tmp_ar)); |
| 709 | return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| 710 | } |
| 711 | FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? ((arg >> 4) & 0xf) : TMP_REG3) | D(base), DR(base))); |
| 712 | return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| 713 | } |
| 714 | |
| 715 | if (SLJIT_UNLIKELY(flags & WRITE_BACK) && base) { |
| 716 | /* Update only applies if a base register exists. */ |
| 717 | if (reg_ar == DR(base)) { |
| 718 | SLJIT_ASSERT(!(flags & LOAD_DATA) && DR(TMP_REG1) != reg_ar); |
| 719 | if (argw <= SIMM_MAX && argw >= SIMM_MIN) { |
| 720 | FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar) | IMM(argw), MOVABLE_INS)); |
| 721 | if (argw) |
| 722 | return push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base)); |
| 723 | return SLJIT_SUCCESS; |
| 724 | } |
| 725 | FAIL_IF(push_inst(compiler, ADDU_W | SA(reg_ar) | TA(0) | D(TMP_REG1), DR(TMP_REG1))); |
| 726 | reg_ar = DR(TMP_REG1); |
| 727 | } |
| 728 | |
| 729 | if (argw <= SIMM_MAX && argw >= SIMM_MIN) { |
| 730 | if (argw) |
| 731 | FAIL_IF(push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base))); |
| 732 | } |
| 733 | else { |
| 734 | if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { |
| 735 | if (argw != compiler->cache_argw) { |
| 736 | FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); |
| 737 | compiler->cache_argw = argw; |
| 738 | } |
| 739 | FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); |
| 740 | } |
| 741 | else { |
| 742 | compiler->cache_arg = SLJIT_MEM; |
| 743 | compiler->cache_argw = argw; |
| 744 | FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); |
| 745 | FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); |
| 746 | } |
| 747 | } |
| 748 | return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| 749 | } |
| 750 | |
| 751 | if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { |
| 752 | if (argw != compiler->cache_argw) { |
| 753 | FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); |
| 754 | compiler->cache_argw = argw; |
| 755 | } |
| 756 | return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| 757 | } |
| 758 | |
| 759 | if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { |
| 760 | if (argw != compiler->cache_argw) |
| 761 | FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); |
| 762 | } |
| 763 | else { |
| 764 | compiler->cache_arg = SLJIT_MEM; |
| 765 | FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); |
| 766 | } |
| 767 | compiler->cache_argw = argw; |
| 768 | |
| 769 | if (!base) |
| 770 | return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| 771 | |
| 772 | if (arg == next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN) { |
| 773 | compiler->cache_arg = arg; |
| 774 | FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | D(TMP_REG3), DR(TMP_REG3))); |
| 775 | return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| 776 | } |
| 777 | |
| 778 | FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | DA(tmp_ar), tmp_ar)); |
| 779 | return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| 780 | } |
| 781 | |
| 782 | static SLJIT_INLINE int emit_op_mem(struct sljit_compiler *compiler, int flags, int reg_ar, int arg, sljit_w argw) |
| 783 | { |
| 784 | if (getput_arg_fast(compiler, flags, reg_ar, arg, argw)) |
| 785 | return compiler->error; |
| 786 | compiler->cache_arg = 0; |
| 787 | compiler->cache_argw = 0; |
| 788 | return getput_arg(compiler, flags, reg_ar, arg, argw, 0, 0); |
| 789 | } |
| 790 | |
| 791 | static int emit_op(struct sljit_compiler *compiler, int op, int flags, |
| 792 | int dst, sljit_w dstw, |
| 793 | int src1, sljit_w src1w, |
| 794 | int src2, sljit_w src2w) |
| 795 | { |
| 796 | /* arg1 goes to TMP_REG1 or src reg |
| 797 | arg2 goes to TMP_REG2, imm or src reg |
| 798 | TMP_REG3 can be used for caching |
| 799 | result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */ |
| 800 | int dst_r = TMP_REG2; |
| 801 | int src1_r; |
| 802 | sljit_w src2_r = 0; |
| 803 | int sugg_src2_r = TMP_REG2; |
| 804 | |
| 805 | compiler->cache_arg = 0; |
| 806 | compiler->cache_argw = 0; |
| 807 | |
| 808 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REG3) { |
| 809 | dst_r = dst; |
| 810 | flags |= REG_DEST; |
| 811 | if (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI) |
| 812 | sugg_src2_r = dst_r; |
| 813 | } |
| 814 | else if (dst == SLJIT_UNUSED) { |
| 815 | if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM)) |
| 816 | return SLJIT_SUCCESS; |
| 817 | if (GET_FLAGS(op)) |
| 818 | flags |= UNUSED_DEST; |
| 819 | } |
| 820 | else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, DR(TMP_REG1), dst, dstw)) |
| 821 | flags |= SLOW_DEST; |
| 822 | |
| 823 | if (flags & IMM_OP) { |
| 824 | if ((src2 & SLJIT_IMM) && src2w) { |
| 825 | if ((!(flags & LOGICAL_OP) && (src2w <= SIMM_MAX && src2w >= SIMM_MIN)) |
| 826 | || ((flags & LOGICAL_OP) && !(src2w & ~UIMM_MAX))) { |
| 827 | flags |= SRC2_IMM; |
| 828 | src2_r = src2w; |
| 829 | } |
| 830 | } |
| 831 | if ((src1 & SLJIT_IMM) && src1w && (flags & CUMULATIVE_OP) && !(flags & SRC2_IMM)) { |
| 832 | if ((!(flags & LOGICAL_OP) && (src1w <= SIMM_MAX && src1w >= SIMM_MIN)) |
| 833 | || ((flags & LOGICAL_OP) && !(src1w & ~UIMM_MAX))) { |
| 834 | flags |= SRC2_IMM; |
| 835 | src2_r = src1w; |
| 836 | |
| 837 | /* And swap arguments. */ |
| 838 | src1 = src2; |
| 839 | src1w = src2w; |
| 840 | src2 = SLJIT_IMM; |
| 841 | /* src2w = src2_r unneeded. */ |
| 842 | } |
| 843 | } |
| 844 | } |
| 845 | |
| 846 | /* Source 1. */ |
| 847 | if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= TMP_REG3) { |
| 848 | src1_r = src1; |
| 849 | flags |= REG1_SOURCE; |
| 850 | } |
| 851 | else if (src1 & SLJIT_IMM) { |
| 852 | if (src1w) { |
| 853 | FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); |
| 854 | src1_r = TMP_REG1; |
| 855 | } |
| 856 | else |
| 857 | src1_r = 0; |
| 858 | } |
| 859 | else { |
| 860 | if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w)) |
| 861 | FAIL_IF(compiler->error); |
| 862 | else |
| 863 | flags |= SLOW_SRC1; |
| 864 | src1_r = TMP_REG1; |
| 865 | } |
| 866 | |
| 867 | /* Source 2. */ |
| 868 | if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= TMP_REG3) { |
| 869 | src2_r = src2; |
| 870 | flags |= REG2_SOURCE; |
| 871 | if (!(flags & REG_DEST) && GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI) |
| 872 | dst_r = src2_r; |
| 873 | } |
| 874 | else if (src2 & SLJIT_IMM) { |
| 875 | if (!(flags & SRC2_IMM)) { |
| 876 | if (src2w || (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI)) { |
| 877 | FAIL_IF(load_immediate(compiler, DR(sugg_src2_r), src2w)); |
| 878 | src2_r = sugg_src2_r; |
| 879 | } |
| 880 | else |
| 881 | src2_r = 0; |
| 882 | } |
| 883 | } |
| 884 | else { |
| 885 | if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w)) |
| 886 | FAIL_IF(compiler->error); |
| 887 | else |
| 888 | flags |= SLOW_SRC2; |
| 889 | src2_r = sugg_src2_r; |
| 890 | } |
| 891 | |
| 892 | if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { |
| 893 | SLJIT_ASSERT(src2_r == TMP_REG2); |
| 894 | if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { |
| 895 | FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, src1, src1w)); |
| 896 | FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw)); |
| 897 | } |
| 898 | else { |
| 899 | FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, src2, src2w)); |
| 900 | FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, dst, dstw)); |
| 901 | } |
| 902 | } |
| 903 | else if (flags & SLOW_SRC1) |
| 904 | FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw)); |
| 905 | else if (flags & SLOW_SRC2) |
| 906 | FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w, dst, dstw)); |
| 907 | |
| 908 | FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r)); |
| 909 | |
| 910 | if (dst & SLJIT_MEM) { |
| 911 | if (!(flags & SLOW_DEST)) { |
| 912 | getput_arg_fast(compiler, flags, DR(dst_r), dst, dstw); |
| 913 | return compiler->error; |
| 914 | } |
| 915 | return getput_arg(compiler, flags, DR(dst_r), dst, dstw, 0, 0); |
| 916 | } |
| 917 | |
| 918 | return SLJIT_SUCCESS; |
| 919 | } |
| 920 | |
| 921 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op) |
| 922 | { |
| 923 | CHECK_ERROR(); |
| 924 | check_sljit_emit_op0(compiler, op); |
| 925 | |
| 926 | op = GET_OPCODE(op); |
| 927 | switch (op) { |
| 928 | case SLJIT_BREAKPOINT: |
| 929 | return push_inst(compiler, BREAK, UNMOVABLE_INS); |
| 930 | case SLJIT_NOP: |
| 931 | return push_inst(compiler, NOP, UNMOVABLE_INS); |
| 932 | } |
| 933 | |
| 934 | return SLJIT_SUCCESS; |
| 935 | } |
| 936 | |
| 937 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op, |
| 938 | int dst, sljit_w dstw, |
| 939 | int src, sljit_w srcw) |
| 940 | { |
| 941 | #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 942 | #define inp_flags 0 |
| 943 | #endif |
| 944 | |
| 945 | CHECK_ERROR(); |
| 946 | check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw); |
| 947 | |
| 948 | SLJIT_COMPILE_ASSERT(SLJIT_MOV + 7 == SLJIT_MOVU, movu_offset); |
| 949 | |
| 950 | switch (GET_OPCODE(op)) { |
| 951 | case SLJIT_MOV: |
| 952 | return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw); |
| 953 | |
| 954 | case SLJIT_MOV_UI: |
| 955 | return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw); |
| 956 | |
| 957 | case SLJIT_MOV_SI: |
| 958 | return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw); |
| 959 | |
| 960 | case SLJIT_MOV_UB: |
| 961 | return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw); |
| 962 | |
| 963 | case SLJIT_MOV_SB: |
| 964 | return emit_op(compiler, SLJIT_MOV_SB, inp_flags | BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw); |
| 965 | |
| 966 | case SLJIT_MOV_UH: |
| 967 | return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw); |
| 968 | |
| 969 | case SLJIT_MOV_SH: |
| 970 | return emit_op(compiler, SLJIT_MOV_SH, inp_flags | HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw); |
| 971 | |
| 972 | case SLJIT_MOVU: |
| 973 | return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); |
| 974 | |
| 975 | case SLJIT_MOVU_UI: |
| 976 | return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); |
| 977 | |
| 978 | case SLJIT_MOVU_SI: |
| 979 | return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); |
| 980 | |
| 981 | case SLJIT_MOVU_UB: |
| 982 | return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw); |
| 983 | |
| 984 | case SLJIT_MOVU_SB: |
| 985 | return emit_op(compiler, SLJIT_MOV_SB, inp_flags | BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw); |
| 986 | |
| 987 | case SLJIT_MOVU_UH: |
| 988 | return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw); |
| 989 | |
| 990 | case SLJIT_MOVU_SH: |
| 991 | return emit_op(compiler, SLJIT_MOV_SH, inp_flags | HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw); |
| 992 | |
| 993 | case SLJIT_NOT: |
| 994 | return emit_op(compiler, op, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw); |
| 995 | |
| 996 | case SLJIT_NEG: |
| 997 | return emit_op(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), inp_flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw); |
| 998 | |
| 999 | case SLJIT_CLZ: |
| 1000 | return emit_op(compiler, op, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw); |
| 1001 | } |
| 1002 | |
| 1003 | return SLJIT_SUCCESS; |
| 1004 | #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 1005 | #undef inp_flags |
| 1006 | #endif |
| 1007 | } |
| 1008 | |
| 1009 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op, |
| 1010 | int dst, sljit_w dstw, |
| 1011 | int src1, sljit_w src1w, |
| 1012 | int src2, sljit_w src2w) |
| 1013 | { |
| 1014 | #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 1015 | #define inp_flags 0 |
| 1016 | #endif |
| 1017 | |
| 1018 | CHECK_ERROR(); |
| 1019 | check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w); |
| 1020 | |
| 1021 | switch (GET_OPCODE(op)) { |
| 1022 | case SLJIT_ADD: |
| 1023 | case SLJIT_ADDC: |
| 1024 | return emit_op(compiler, op, inp_flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); |
| 1025 | |
| 1026 | case SLJIT_SUB: |
| 1027 | case SLJIT_SUBC: |
| 1028 | return emit_op(compiler, op, inp_flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); |
| 1029 | |
| 1030 | case SLJIT_MUL: |
| 1031 | return emit_op(compiler, op, inp_flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w); |
| 1032 | |
| 1033 | case SLJIT_AND: |
| 1034 | case SLJIT_OR: |
| 1035 | case SLJIT_XOR: |
| 1036 | return emit_op(compiler, op, inp_flags | CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); |
| 1037 | |
| 1038 | case SLJIT_SHL: |
| 1039 | case SLJIT_LSHR: |
| 1040 | case SLJIT_ASHR: |
| 1041 | #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 1042 | if (src2 & SLJIT_IMM) |
| 1043 | src2w &= 0x1f; |
| 1044 | #else |
| 1045 | if (src2 & SLJIT_IMM) |
| 1046 | src2w &= 0x3f; |
| 1047 | #endif |
| 1048 | return emit_op(compiler, op, inp_flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); |
| 1049 | } |
| 1050 | |
| 1051 | return SLJIT_SUCCESS; |
| 1052 | #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 1053 | #undef inp_flags |
| 1054 | #endif |
| 1055 | } |
| 1056 | |
| 1057 | /* --------------------------------------------------------------------- */ |
| 1058 | /* Floating point operators */ |
| 1059 | /* --------------------------------------------------------------------- */ |
| 1060 | |
| 1061 | SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void) |
| 1062 | { |
| 1063 | #if (defined SLJIT_QEMU && SLJIT_QEMU) |
| 1064 | /* Qemu says fir is 0 by default. */ |
| 1065 | return 1; |
| 1066 | #elif defined(__GNUC__) |
| 1067 | sljit_w fir; |
| 1068 | asm ("cfc1 %0, $0" : "=r"(fir)); |
| 1069 | return (fir >> 22) & 0x1; |
| 1070 | #else |
| 1071 | #error "FIR check is not implemented for this architecture" |
| 1072 | #endif |
| 1073 | } |
| 1074 | |
| 1075 | static int emit_fpu_data_transfer(struct sljit_compiler *compiler, int fpu_reg, int load, int arg, sljit_w argw) |
| 1076 | { |
| 1077 | int hi_reg; |
| 1078 | |
| 1079 | SLJIT_ASSERT(arg & SLJIT_MEM); |
| 1080 | |
| 1081 | /* Fast loads and stores. */ |
| 1082 | if (!(arg & 0xf0)) { |
| 1083 | /* Both for (arg & 0xf) == SLJIT_UNUSED and (arg & 0xf) != SLJIT_UNUSED. */ |
| 1084 | if (argw <= SIMM_MAX && argw >= SIMM_MIN) |
| 1085 | return push_inst(compiler, (load ? LDC1 : SDC1) | S(arg & 0xf) | FT(fpu_reg) | IMM(argw), MOVABLE_INS); |
| 1086 | } |
| 1087 | |
| 1088 | if (arg & 0xf0) { |
| 1089 | argw &= 0x3; |
| 1090 | hi_reg = (arg >> 4) & 0xf; |
| 1091 | if (argw) { |
| 1092 | FAIL_IF(push_inst(compiler, SLL_W | T(hi_reg) | D(TMP_REG1) | SH_IMM(argw), DR(TMP_REG1))); |
| 1093 | hi_reg = TMP_REG1; |
| 1094 | } |
| 1095 | FAIL_IF(push_inst(compiler, ADDU_W | S(hi_reg) | T(arg & 0xf) | D(TMP_REG1), DR(TMP_REG1))); |
| 1096 | return push_inst(compiler, (load ? LDC1 : SDC1) | S(TMP_REG1) | FT(fpu_reg) | IMM(0), MOVABLE_INS); |
| 1097 | } |
| 1098 | |
| 1099 | /* Use cache. */ |
| 1100 | if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) |
| 1101 | return push_inst(compiler, (load ? LDC1 : SDC1) | S(TMP_REG3) | FT(fpu_reg) | IMM(argw - compiler->cache_argw), MOVABLE_INS); |
| 1102 | |
| 1103 | /* Put value to cache. */ |
| 1104 | compiler->cache_arg = arg; |
| 1105 | compiler->cache_argw = argw; |
| 1106 | |
| 1107 | FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); |
| 1108 | if (arg & 0xf) |
| 1109 | FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(arg & 0xf) | D(TMP_REG3), DR(TMP_REG3))); |
| 1110 | return push_inst(compiler, (load ? LDC1 : SDC1) | S(TMP_REG3) | FT(fpu_reg) | IMM(0), MOVABLE_INS); |
| 1111 | } |
| 1112 | |
| 1113 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op, |
| 1114 | int dst, sljit_w dstw, |
| 1115 | int src, sljit_w srcw) |
| 1116 | { |
| 1117 | int dst_fr; |
| 1118 | |
| 1119 | CHECK_ERROR(); |
| 1120 | check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw); |
| 1121 | |
| 1122 | compiler->cache_arg = 0; |
| 1123 | compiler->cache_argw = 0; |
| 1124 | |
| 1125 | if (GET_OPCODE(op) == SLJIT_FCMP) { |
| 1126 | if (dst > SLJIT_FLOAT_REG4) { |
| 1127 | FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, dst, dstw)); |
| 1128 | dst = TMP_FREG1; |
| 1129 | } |
| 1130 | if (src > SLJIT_FLOAT_REG4) { |
| 1131 | FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src, srcw)); |
| 1132 | src = TMP_FREG2; |
| 1133 | } |
| 1134 | |
| 1135 | /* src and dst are swapped. */ |
| 1136 | if (op & SLJIT_SET_E) { |
| 1137 | FAIL_IF(push_inst(compiler, C_UEQ_D | FT(src) | FS(dst), UNMOVABLE_INS)); |
| 1138 | FAIL_IF(push_inst(compiler, CFC1 | TA(EQUAL_FLAG) | DA(FCSR_REG), EQUAL_FLAG)); |
| 1139 | FAIL_IF(push_inst(compiler, SRL | TA(EQUAL_FLAG) | DA(EQUAL_FLAG) | SH_IMM(23), EQUAL_FLAG)); |
| 1140 | FAIL_IF(push_inst(compiler, ANDI | SA(EQUAL_FLAG) | TA(EQUAL_FLAG) | IMM(1), EQUAL_FLAG)); |
| 1141 | } |
| 1142 | if (op & SLJIT_SET_S) { |
| 1143 | /* Mixing the instructions for the two checks. */ |
| 1144 | FAIL_IF(push_inst(compiler, C_ULT_D | FT(src) | FS(dst), UNMOVABLE_INS)); |
| 1145 | FAIL_IF(push_inst(compiler, CFC1 | TA(ULESS_FLAG) | DA(FCSR_REG), ULESS_FLAG)); |
| 1146 | FAIL_IF(push_inst(compiler, C_ULT_D | FT(dst) | FS(src), UNMOVABLE_INS)); |
| 1147 | FAIL_IF(push_inst(compiler, SRL | TA(ULESS_FLAG) | DA(ULESS_FLAG) | SH_IMM(23), ULESS_FLAG)); |
| 1148 | FAIL_IF(push_inst(compiler, ANDI | SA(ULESS_FLAG) | TA(ULESS_FLAG) | IMM(1), ULESS_FLAG)); |
| 1149 | FAIL_IF(push_inst(compiler, CFC1 | TA(UGREATER_FLAG) | DA(FCSR_REG), UGREATER_FLAG)); |
| 1150 | FAIL_IF(push_inst(compiler, SRL | TA(UGREATER_FLAG) | DA(UGREATER_FLAG) | SH_IMM(23), UGREATER_FLAG)); |
| 1151 | FAIL_IF(push_inst(compiler, ANDI | SA(UGREATER_FLAG) | TA(UGREATER_FLAG) | IMM(1), UGREATER_FLAG)); |
| 1152 | } |
| 1153 | return push_inst(compiler, C_UN_D | FT(src) | FS(dst), FCSR_FCC); |
| 1154 | } |
| 1155 | |
| 1156 | dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst; |
| 1157 | |
| 1158 | if (src > SLJIT_FLOAT_REG4) { |
| 1159 | FAIL_IF(emit_fpu_data_transfer(compiler, dst_fr, 1, src, srcw)); |
| 1160 | src = dst_fr; |
| 1161 | } |
| 1162 | |
| 1163 | switch (op) { |
| 1164 | case SLJIT_FMOV: |
| 1165 | if (src != dst_fr && dst_fr != TMP_FREG1) |
| 1166 | FAIL_IF(push_inst(compiler, MOV_D | FS(src) | FD(dst_fr), MOVABLE_INS)); |
| 1167 | break; |
| 1168 | case SLJIT_FNEG: |
| 1169 | FAIL_IF(push_inst(compiler, NEG_D | FS(src) | FD(dst_fr), MOVABLE_INS)); |
| 1170 | break; |
| 1171 | case SLJIT_FABS: |
| 1172 | FAIL_IF(push_inst(compiler, ABS_D | FS(src) | FD(dst_fr), MOVABLE_INS)); |
| 1173 | break; |
| 1174 | } |
| 1175 | |
| 1176 | if (dst_fr == TMP_FREG1) |
| 1177 | FAIL_IF(emit_fpu_data_transfer(compiler, src, 0, dst, dstw)); |
| 1178 | |
| 1179 | return SLJIT_SUCCESS; |
| 1180 | } |
| 1181 | |
| 1182 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op, |
| 1183 | int dst, sljit_w dstw, |
| 1184 | int src1, sljit_w src1w, |
| 1185 | int src2, sljit_w src2w) |
| 1186 | { |
| 1187 | int dst_fr; |
| 1188 | |
| 1189 | CHECK_ERROR(); |
| 1190 | check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w); |
| 1191 | |
| 1192 | compiler->cache_arg = 0; |
| 1193 | compiler->cache_argw = 0; |
| 1194 | |
| 1195 | dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst; |
| 1196 | |
| 1197 | if (src2 > SLJIT_FLOAT_REG4) { |
| 1198 | FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src2, src2w)); |
| 1199 | src2 = TMP_FREG2; |
| 1200 | } |
| 1201 | |
| 1202 | if (src1 > SLJIT_FLOAT_REG4) { |
| 1203 | FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, src1, src1w)); |
| 1204 | src1 = TMP_FREG1; |
| 1205 | } |
| 1206 | |
| 1207 | switch (op) { |
| 1208 | case SLJIT_FADD: |
| 1209 | FAIL_IF(push_inst(compiler, ADD_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS)); |
| 1210 | break; |
| 1211 | |
| 1212 | case SLJIT_FSUB: |
| 1213 | FAIL_IF(push_inst(compiler, SUB_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS)); |
| 1214 | break; |
| 1215 | |
| 1216 | case SLJIT_FMUL: |
| 1217 | FAIL_IF(push_inst(compiler, MUL_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS)); |
| 1218 | break; |
| 1219 | |
| 1220 | case SLJIT_FDIV: |
| 1221 | FAIL_IF(push_inst(compiler, DIV_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS)); |
| 1222 | break; |
| 1223 | } |
| 1224 | |
| 1225 | if (dst_fr == TMP_FREG1) |
| 1226 | FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 0, dst, dstw)); |
| 1227 | |
| 1228 | return SLJIT_SUCCESS; |
| 1229 | } |
| 1230 | |
| 1231 | /* --------------------------------------------------------------------- */ |
| 1232 | /* Other instructions */ |
| 1233 | /* --------------------------------------------------------------------- */ |
| 1234 | |
| 1235 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw, int args, int temporaries, int generals, int local_size) |
| 1236 | { |
| 1237 | CHECK_ERROR(); |
| 1238 | check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, generals, local_size); |
| 1239 | |
| 1240 | compiler->temporaries = temporaries; |
| 1241 | compiler->generals = generals; |
| 1242 | |
| 1243 | compiler->has_locals = local_size > 0; |
| 1244 | local_size += (generals + 2 + 4) * sizeof(sljit_w); |
| 1245 | compiler->local_size = (local_size + 15) & ~0xf; |
| 1246 | |
| 1247 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) |
| 1248 | return push_inst(compiler, ADDU_W | SA(RETURN_ADDR_REG) | TA(0) | D(dst), DR(dst)); |
| 1249 | else if (dst & SLJIT_MEM) |
| 1250 | return emit_op_mem(compiler, WORD_DATA, RETURN_ADDR_REG, dst, dstw); |
| 1251 | return SLJIT_SUCCESS; |
| 1252 | } |
| 1253 | |
| 1254 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw) |
| 1255 | { |
| 1256 | CHECK_ERROR(); |
| 1257 | check_sljit_emit_fast_return(compiler, src, srcw); |
| 1258 | |
| 1259 | if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS) |
| 1260 | FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | DA(RETURN_ADDR_REG), RETURN_ADDR_REG)); |
| 1261 | else if (src & SLJIT_MEM) |
| 1262 | FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, RETURN_ADDR_REG, src, srcw)); |
| 1263 | else if (src & SLJIT_IMM) |
| 1264 | FAIL_IF(load_immediate(compiler, RETURN_ADDR_REG, srcw)); |
| 1265 | |
| 1266 | FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS)); |
| 1267 | return push_inst(compiler, NOP, UNMOVABLE_INS); |
| 1268 | } |
| 1269 | |
| 1270 | /* --------------------------------------------------------------------- */ |
| 1271 | /* Conditional instructions */ |
| 1272 | /* --------------------------------------------------------------------- */ |
| 1273 | |
| 1274 | SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler) |
| 1275 | { |
| 1276 | struct sljit_label *label; |
| 1277 | |
| 1278 | CHECK_ERROR_PTR(); |
| 1279 | check_sljit_emit_label(compiler); |
| 1280 | |
| 1281 | if (compiler->last_label && compiler->last_label->size == compiler->size) |
| 1282 | return compiler->last_label; |
| 1283 | |
| 1284 | label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label)); |
| 1285 | PTR_FAIL_IF(!label); |
| 1286 | set_label(label, compiler); |
| 1287 | compiler->delay_slot = UNMOVABLE_INS; |
| 1288 | return label; |
| 1289 | } |
| 1290 | |
| 1291 | #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| 1292 | #define JUMP_LENGTH 4 |
| 1293 | #else |
| 1294 | #define JUMP_LENGTH 7 |
| 1295 | #endif |
| 1296 | |
| 1297 | #define BR_Z(src) \ |
| 1298 | inst = BEQ | SA(src) | TA(0) | JUMP_LENGTH; \ |
| 1299 | flags = IS_BIT26_COND; \ |
| 1300 | delay_check = src; |
| 1301 | |
| 1302 | #define BR_NZ(src) \ |
| 1303 | inst = BNE | SA(src) | TA(0) | JUMP_LENGTH; \ |
| 1304 | flags = IS_BIT26_COND; \ |
| 1305 | delay_check = src; |
| 1306 | |
| 1307 | #define BR_T() \ |
| 1308 | inst = BC1T | JUMP_LENGTH; \ |
| 1309 | flags = IS_BIT16_COND; \ |
| 1310 | delay_check = FCSR_FCC; |
| 1311 | |
| 1312 | #define BR_F() \ |
| 1313 | inst = BC1F | JUMP_LENGTH; \ |
| 1314 | flags = IS_BIT16_COND; \ |
| 1315 | delay_check = FCSR_FCC; |
| 1316 | |
| 1317 | SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type) |
| 1318 | { |
| 1319 | struct sljit_jump *jump; |
| 1320 | sljit_ins inst; |
| 1321 | int flags = 0; |
| 1322 | int delay_check = UNMOVABLE_INS; |
| 1323 | |
| 1324 | CHECK_ERROR_PTR(); |
| 1325 | check_sljit_emit_jump(compiler, type); |
| 1326 | |
| 1327 | jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); |
| 1328 | PTR_FAIL_IF(!jump); |
| 1329 | set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); |
| 1330 | type &= 0xff; |
| 1331 | |
| 1332 | switch (type) { |
| 1333 | case SLJIT_C_EQUAL: |
| 1334 | case SLJIT_C_FLOAT_NOT_EQUAL: |
| 1335 | BR_NZ(EQUAL_FLAG); |
| 1336 | break; |
| 1337 | case SLJIT_C_NOT_EQUAL: |
| 1338 | case SLJIT_C_FLOAT_EQUAL: |
| 1339 | BR_Z(EQUAL_FLAG); |
| 1340 | break; |
| 1341 | case SLJIT_C_LESS: |
| 1342 | case SLJIT_C_FLOAT_LESS: |
| 1343 | BR_Z(ULESS_FLAG); |
| 1344 | break; |
| 1345 | case SLJIT_C_GREATER_EQUAL: |
| 1346 | case SLJIT_C_FLOAT_GREATER_EQUAL: |
| 1347 | BR_NZ(ULESS_FLAG); |
| 1348 | break; |
| 1349 | case SLJIT_C_GREATER: |
| 1350 | case SLJIT_C_FLOAT_GREATER: |
| 1351 | BR_Z(UGREATER_FLAG); |
| 1352 | break; |
| 1353 | case SLJIT_C_LESS_EQUAL: |
| 1354 | case SLJIT_C_FLOAT_LESS_EQUAL: |
| 1355 | BR_NZ(UGREATER_FLAG); |
| 1356 | break; |
| 1357 | case SLJIT_C_SIG_LESS: |
| 1358 | BR_Z(LESS_FLAG); |
| 1359 | break; |
| 1360 | case SLJIT_C_SIG_GREATER_EQUAL: |
| 1361 | BR_NZ(LESS_FLAG); |
| 1362 | break; |
| 1363 | case SLJIT_C_SIG_GREATER: |
| 1364 | BR_Z(GREATER_FLAG); |
| 1365 | break; |
| 1366 | case SLJIT_C_SIG_LESS_EQUAL: |
| 1367 | BR_NZ(GREATER_FLAG); |
| 1368 | break; |
| 1369 | case SLJIT_C_OVERFLOW: |
| 1370 | case SLJIT_C_MUL_OVERFLOW: |
| 1371 | BR_Z(OVERFLOW_FLAG); |
| 1372 | break; |
| 1373 | case SLJIT_C_NOT_OVERFLOW: |
| 1374 | case SLJIT_C_MUL_NOT_OVERFLOW: |
| 1375 | BR_NZ(OVERFLOW_FLAG); |
| 1376 | break; |
| 1377 | case SLJIT_C_FLOAT_NAN: |
| 1378 | BR_F(); |
| 1379 | break; |
| 1380 | case SLJIT_C_FLOAT_NOT_NAN: |
| 1381 | BR_T(); |
| 1382 | break; |
| 1383 | default: |
| 1384 | /* Not conditional branch. */ |
| 1385 | inst = 0; |
| 1386 | break; |
| 1387 | } |
| 1388 | |
| 1389 | jump->flags |= flags; |
| 1390 | if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != delay_check)) |
| 1391 | jump->flags |= IS_MOVABLE; |
| 1392 | |
| 1393 | if (inst) |
| 1394 | PTR_FAIL_IF(push_inst(compiler, inst, UNMOVABLE_INS)); |
| 1395 | |
| 1396 | PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); |
| 1397 | if (type <= SLJIT_JUMP) { |
| 1398 | PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); |
| 1399 | jump->addr = compiler->size; |
| 1400 | PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); |
| 1401 | } else { |
| 1402 | SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG2); |
| 1403 | /* Cannot be optimized out if type is >= CALL0. */ |
| 1404 | jump->flags |= IS_JAL | (type >= SLJIT_CALL0 ? SLJIT_REWRITABLE_JUMP : 0); |
| 1405 | PTR_FAIL_IF(push_inst(compiler, JALR | S(TMP_REG2) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); |
| 1406 | jump->addr = compiler->size; |
| 1407 | /* A NOP if type < CALL1. */ |
| 1408 | PTR_FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_TEMPORARY_REG1) | TA(0) | DA(4), UNMOVABLE_INS)); |
| 1409 | } |
| 1410 | return jump; |
| 1411 | } |
| 1412 | |
| 1413 | #define RESOLVE_IMM1() \ |
| 1414 | if (src1 & SLJIT_IMM) { \ |
| 1415 | if (src1w) { \ |
| 1416 | PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); \ |
| 1417 | src1 = TMP_REG1; \ |
| 1418 | } \ |
| 1419 | else \ |
| 1420 | src1 = 0; \ |
| 1421 | } |
| 1422 | |
| 1423 | #define RESOLVE_IMM2() \ |
| 1424 | if (src2 & SLJIT_IMM) { \ |
| 1425 | if (src2w) { \ |
| 1426 | PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG2), src2w)); \ |
| 1427 | src2 = TMP_REG2; \ |
| 1428 | } \ |
| 1429 | else \ |
| 1430 | src2 = 0; \ |
| 1431 | } |
| 1432 | |
| 1433 | SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, int type, |
| 1434 | int src1, sljit_w src1w, |
| 1435 | int src2, sljit_w src2w) |
| 1436 | { |
| 1437 | struct sljit_jump *jump; |
| 1438 | int flags; |
| 1439 | sljit_ins inst; |
| 1440 | |
| 1441 | CHECK_ERROR_PTR(); |
| 1442 | check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w); |
| 1443 | |
| 1444 | compiler->cache_arg = 0; |
| 1445 | compiler->cache_argw = 0; |
| 1446 | flags = ((type & SLJIT_INT_OP) ? INT_DATA : WORD_DATA) | LOAD_DATA; |
| 1447 | if (src1 & SLJIT_MEM) { |
| 1448 | if (getput_arg_fast(compiler, flags, DR(TMP_REG1), src1, src1w)) |
| 1449 | PTR_FAIL_IF(compiler->error); |
| 1450 | else |
| 1451 | PTR_FAIL_IF(getput_arg(compiler, flags, DR(TMP_REG1), src1, src1w, src2, src2w)); |
| 1452 | src1 = TMP_REG1; |
| 1453 | } |
| 1454 | if (src2 & SLJIT_MEM) { |
| 1455 | if (getput_arg_fast(compiler, flags, DR(TMP_REG2), src2, src2w)) |
| 1456 | PTR_FAIL_IF(compiler->error); |
| 1457 | else |
| 1458 | PTR_FAIL_IF(getput_arg(compiler, flags, DR(TMP_REG2), src2, src2w, 0, 0)); |
| 1459 | src2 = TMP_REG2; |
| 1460 | } |
| 1461 | |
| 1462 | jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); |
| 1463 | PTR_FAIL_IF(!jump); |
| 1464 | set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); |
| 1465 | type &= 0xff; |
| 1466 | |
| 1467 | if (type <= SLJIT_C_NOT_EQUAL) { |
| 1468 | RESOLVE_IMM1(); |
| 1469 | RESOLVE_IMM2(); |
| 1470 | jump->flags |= IS_BIT26_COND; |
| 1471 | if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != DR(src1) && compiler->delay_slot != DR(src2))) |
| 1472 | jump->flags |= IS_MOVABLE; |
| 1473 | PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_C_EQUAL ? BNE : BEQ) | S(src1) | T(src2) | JUMP_LENGTH, UNMOVABLE_INS)); |
| 1474 | } |
| 1475 | else if (type >= SLJIT_C_SIG_LESS && (((src1 & SLJIT_IMM) && (src1w == 0)) || ((src2 & SLJIT_IMM) && (src2w == 0)))) { |
| 1476 | inst = NOP; |
| 1477 | if ((src1 & SLJIT_IMM) && (src1w == 0)) { |
| 1478 | RESOLVE_IMM2(); |
| 1479 | switch (type) { |
| 1480 | case SLJIT_C_SIG_LESS: |
| 1481 | inst = BLEZ; |
| 1482 | jump->flags |= IS_BIT26_COND; |
| 1483 | break; |
| 1484 | case SLJIT_C_SIG_GREATER_EQUAL: |
| 1485 | inst = BGTZ; |
| 1486 | jump->flags |= IS_BIT26_COND; |
| 1487 | break; |
| 1488 | case SLJIT_C_SIG_GREATER: |
| 1489 | inst = BGEZ; |
| 1490 | jump->flags |= IS_BIT16_COND; |
| 1491 | break; |
| 1492 | case SLJIT_C_SIG_LESS_EQUAL: |
| 1493 | inst = BLTZ; |
| 1494 | jump->flags |= IS_BIT16_COND; |
| 1495 | break; |
| 1496 | } |
| 1497 | src1 = src2; |
| 1498 | } |
| 1499 | else { |
| 1500 | RESOLVE_IMM1(); |
| 1501 | switch (type) { |
| 1502 | case SLJIT_C_SIG_LESS: |
| 1503 | inst = BGEZ; |
| 1504 | jump->flags |= IS_BIT16_COND; |
| 1505 | break; |
| 1506 | case SLJIT_C_SIG_GREATER_EQUAL: |
| 1507 | inst = BLTZ; |
| 1508 | jump->flags |= IS_BIT16_COND; |
| 1509 | break; |
| 1510 | case SLJIT_C_SIG_GREATER: |
| 1511 | inst = BLEZ; |
| 1512 | jump->flags |= IS_BIT26_COND; |
| 1513 | break; |
| 1514 | case SLJIT_C_SIG_LESS_EQUAL: |
| 1515 | inst = BGTZ; |
| 1516 | jump->flags |= IS_BIT26_COND; |
| 1517 | break; |
| 1518 | } |
| 1519 | } |
| 1520 | PTR_FAIL_IF(push_inst(compiler, inst | S(src1) | JUMP_LENGTH, UNMOVABLE_INS)); |
| 1521 | } |
| 1522 | else { |
| 1523 | if (type == SLJIT_C_LESS || type == SLJIT_C_GREATER_EQUAL || type == SLJIT_C_SIG_LESS || type == SLJIT_C_SIG_GREATER_EQUAL) { |
| 1524 | RESOLVE_IMM1(); |
| 1525 | if ((src2 & SLJIT_IMM) && src2w <= SIMM_MAX && src2w >= SIMM_MIN) |
| 1526 | PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTIU : SLTI) | S(src1) | T(TMP_REG1) | IMM(src2w), DR(TMP_REG1))); |
| 1527 | else { |
| 1528 | RESOLVE_IMM2(); |
| 1529 | PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTU : SLT) | S(src1) | T(src2) | D(TMP_REG1), DR(TMP_REG1))); |
| 1530 | } |
| 1531 | type = (type == SLJIT_C_LESS || type == SLJIT_C_SIG_LESS) ? SLJIT_C_NOT_EQUAL : SLJIT_C_EQUAL; |
| 1532 | } |
| 1533 | else { |
| 1534 | RESOLVE_IMM2(); |
| 1535 | if ((src1 & SLJIT_IMM) && src1w <= SIMM_MAX && src1w >= SIMM_MIN) |
| 1536 | PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTIU : SLTI) | S(src2) | T(TMP_REG1) | IMM(src1w), DR(TMP_REG1))); |
| 1537 | else { |
| 1538 | RESOLVE_IMM1(); |
| 1539 | PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTU : SLT) | S(src2) | T(src1) | D(TMP_REG1), DR(TMP_REG1))); |
| 1540 | } |
| 1541 | type = (type == SLJIT_C_GREATER || type == SLJIT_C_SIG_GREATER) ? SLJIT_C_NOT_EQUAL : SLJIT_C_EQUAL; |
| 1542 | } |
| 1543 | |
| 1544 | jump->flags |= IS_BIT26_COND; |
| 1545 | PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_C_EQUAL ? BNE : BEQ) | S(TMP_REG1) | TA(0) | JUMP_LENGTH, UNMOVABLE_INS)); |
| 1546 | } |
| 1547 | |
| 1548 | PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); |
| 1549 | PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); |
| 1550 | jump->addr = compiler->size; |
| 1551 | PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); |
| 1552 | return jump; |
| 1553 | } |
| 1554 | |
| 1555 | #undef RESOLVE_IMM1 |
| 1556 | #undef RESOLVE_IMM2 |
| 1557 | |
| 1558 | #undef JUMP_LENGTH |
| 1559 | #undef BR_Z |
| 1560 | #undef BR_NZ |
| 1561 | #undef BR_T |
| 1562 | #undef BR_F |
| 1563 | |
| 1564 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw) |
| 1565 | { |
| 1566 | int src_r = TMP_REG2; |
| 1567 | struct sljit_jump *jump = NULL; |
| 1568 | |
| 1569 | CHECK_ERROR(); |
| 1570 | check_sljit_emit_ijump(compiler, type, src, srcw); |
| 1571 | |
| 1572 | if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS) { |
| 1573 | if (DR(src) != 4) |
| 1574 | src_r = src; |
| 1575 | else |
| 1576 | FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); |
| 1577 | } |
| 1578 | |
| 1579 | if (type >= SLJIT_CALL0) { |
| 1580 | SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG2); |
| 1581 | if (src & (SLJIT_IMM | SLJIT_MEM)) { |
| 1582 | if (src & SLJIT_IMM) |
| 1583 | FAIL_IF(load_immediate(compiler, DR(PIC_ADDR_REG), srcw)); |
| 1584 | else { |
| 1585 | SLJIT_ASSERT(src_r == TMP_REG2 && (src & SLJIT_MEM)); |
| 1586 | FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw)); |
| 1587 | } |
| 1588 | FAIL_IF(push_inst(compiler, JALR | S(PIC_ADDR_REG) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); |
| 1589 | /* We need an extra instruction in any case. */ |
| 1590 | return push_inst(compiler, ADDU_W | S(SLJIT_TEMPORARY_REG1) | TA(0) | DA(4), UNMOVABLE_INS); |
| 1591 | } |
| 1592 | |
| 1593 | /* Register input. */ |
| 1594 | if (type >= SLJIT_CALL1) |
| 1595 | FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_TEMPORARY_REG1) | TA(0) | DA(4), 4)); |
| 1596 | FAIL_IF(push_inst(compiler, JALR | S(src_r) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); |
| 1597 | return push_inst(compiler, ADDU_W | S(src_r) | TA(0) | D(PIC_ADDR_REG), UNMOVABLE_INS); |
| 1598 | } |
| 1599 | |
| 1600 | if (src & SLJIT_IMM) { |
| 1601 | jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); |
| 1602 | FAIL_IF(!jump); |
| 1603 | set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_JAL : 0)); |
| 1604 | jump->u.target = srcw; |
| 1605 | |
| 1606 | if (compiler->delay_slot != UNMOVABLE_INS) |
| 1607 | jump->flags |= IS_MOVABLE; |
| 1608 | |
| 1609 | FAIL_IF(emit_const(compiler, TMP_REG2, 0)); |
| 1610 | } |
| 1611 | else if (src & SLJIT_MEM) |
| 1612 | FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw)); |
| 1613 | |
| 1614 | FAIL_IF(push_inst(compiler, JR | S(src_r), UNMOVABLE_INS)); |
| 1615 | if (jump) |
| 1616 | jump->addr = compiler->size; |
| 1617 | FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); |
| 1618 | return SLJIT_SUCCESS; |
| 1619 | } |
| 1620 | |
| 1621 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type) |
| 1622 | { |
| 1623 | int sugg_dst_ar, dst_ar; |
| 1624 | |
| 1625 | CHECK_ERROR(); |
| 1626 | check_sljit_emit_cond_value(compiler, op, dst, dstw, type); |
| 1627 | |
| 1628 | if (dst == SLJIT_UNUSED) |
| 1629 | return SLJIT_SUCCESS; |
| 1630 | |
| 1631 | sugg_dst_ar = DR((op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2); |
| 1632 | |
| 1633 | switch (type) { |
| 1634 | case SLJIT_C_EQUAL: |
| 1635 | case SLJIT_C_NOT_EQUAL: |
| 1636 | FAIL_IF(push_inst(compiler, SLTIU | SA(EQUAL_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); |
| 1637 | dst_ar = sugg_dst_ar; |
| 1638 | break; |
| 1639 | case SLJIT_C_LESS: |
| 1640 | case SLJIT_C_GREATER_EQUAL: |
| 1641 | case SLJIT_C_FLOAT_LESS: |
| 1642 | case SLJIT_C_FLOAT_GREATER_EQUAL: |
| 1643 | dst_ar = ULESS_FLAG; |
| 1644 | break; |
| 1645 | case SLJIT_C_GREATER: |
| 1646 | case SLJIT_C_LESS_EQUAL: |
| 1647 | case SLJIT_C_FLOAT_GREATER: |
| 1648 | case SLJIT_C_FLOAT_LESS_EQUAL: |
| 1649 | dst_ar = UGREATER_FLAG; |
| 1650 | break; |
| 1651 | case SLJIT_C_SIG_LESS: |
| 1652 | case SLJIT_C_SIG_GREATER_EQUAL: |
| 1653 | dst_ar = LESS_FLAG; |
| 1654 | break; |
| 1655 | case SLJIT_C_SIG_GREATER: |
| 1656 | case SLJIT_C_SIG_LESS_EQUAL: |
| 1657 | dst_ar = GREATER_FLAG; |
| 1658 | break; |
| 1659 | case SLJIT_C_OVERFLOW: |
| 1660 | case SLJIT_C_NOT_OVERFLOW: |
| 1661 | dst_ar = OVERFLOW_FLAG; |
| 1662 | break; |
| 1663 | case SLJIT_C_MUL_OVERFLOW: |
| 1664 | case SLJIT_C_MUL_NOT_OVERFLOW: |
| 1665 | FAIL_IF(push_inst(compiler, SLTIU | SA(OVERFLOW_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); |
| 1666 | dst_ar = sugg_dst_ar; |
| 1667 | type ^= 0x1; /* Flip type bit for the XORI below. */ |
| 1668 | break; |
| 1669 | case SLJIT_C_FLOAT_EQUAL: |
| 1670 | case SLJIT_C_FLOAT_NOT_EQUAL: |
| 1671 | dst_ar = EQUAL_FLAG; |
| 1672 | break; |
| 1673 | |
| 1674 | case SLJIT_C_FLOAT_NAN: |
| 1675 | case SLJIT_C_FLOAT_NOT_NAN: |
| 1676 | FAIL_IF(push_inst(compiler, CFC1 | TA(sugg_dst_ar) | DA(FCSR_REG), sugg_dst_ar)); |
| 1677 | FAIL_IF(push_inst(compiler, SRL | TA(sugg_dst_ar) | DA(sugg_dst_ar) | SH_IMM(23), sugg_dst_ar)); |
| 1678 | FAIL_IF(push_inst(compiler, ANDI | SA(sugg_dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); |
| 1679 | dst_ar = sugg_dst_ar; |
| 1680 | break; |
| 1681 | |
| 1682 | default: |
| 1683 | SLJIT_ASSERT_STOP(); |
| 1684 | dst_ar = sugg_dst_ar; |
| 1685 | break; |
| 1686 | } |
| 1687 | |
| 1688 | if (type & 0x1) { |
| 1689 | FAIL_IF(push_inst(compiler, XORI | SA(dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); |
| 1690 | dst_ar = sugg_dst_ar; |
| 1691 | } |
| 1692 | |
| 1693 | if (GET_OPCODE(op) == SLJIT_OR) { |
| 1694 | if (DR(TMP_REG2) != dst_ar) |
| 1695 | FAIL_IF(push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); |
| 1696 | return emit_op(compiler, op, CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, dst, dstw, TMP_REG2, 0); |
| 1697 | } |
| 1698 | |
| 1699 | if (dst & SLJIT_MEM) |
| 1700 | return emit_op_mem(compiler, WORD_DATA, dst_ar, dst, dstw); |
| 1701 | |
| 1702 | if (sugg_dst_ar != dst_ar) |
| 1703 | return push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | DA(sugg_dst_ar), sugg_dst_ar); |
| 1704 | return SLJIT_SUCCESS; |
| 1705 | } |
| 1706 | |
| 1707 | SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value) |
| 1708 | { |
| 1709 | struct sljit_const *const_; |
| 1710 | int reg; |
| 1711 | |
| 1712 | CHECK_ERROR_PTR(); |
| 1713 | check_sljit_emit_const(compiler, dst, dstw, init_value); |
| 1714 | |
| 1715 | const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const)); |
| 1716 | PTR_FAIL_IF(!const_); |
| 1717 | set_const(const_, compiler); |
| 1718 | |
| 1719 | reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2; |
| 1720 | |
| 1721 | PTR_FAIL_IF(emit_const(compiler, reg, init_value)); |
| 1722 | |
| 1723 | if (dst & SLJIT_MEM) |
| 1724 | PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0)); |
| 1725 | return const_; |
| 1726 | } |