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_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 30 | return "ppc-32"; |
| 31 | #else |
| 32 | return "ppc-64"; |
| 33 | #endif |
| 34 | } |
| 35 | |
| 36 | /* Length of an instruction word. |
| 37 | Both for ppc-32 and ppc-64. */ |
| 38 | typedef sljit_ui sljit_ins; |
| 39 | |
| 40 | static void ppc_cache_flush(sljit_ins *from, sljit_ins *to) |
| 41 | { |
| 42 | while (from < to) { |
| 43 | #ifdef __GNUC__ |
| 44 | asm volatile ( "icbi 0, %0" : : "r"(from) ); |
| 45 | #else |
| 46 | #error "Must implement icbi" |
| 47 | #endif |
| 48 | from++; |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | #define TMP_REG1 (SLJIT_NO_REGISTERS + 1) |
| 53 | #define TMP_REG2 (SLJIT_NO_REGISTERS + 2) |
| 54 | #define TMP_REG3 (SLJIT_NO_REGISTERS + 3) |
| 55 | #define ZERO_REG (SLJIT_NO_REGISTERS + 4) |
| 56 | #define REAL_STACK_PTR (SLJIT_NO_REGISTERS + 5) |
| 57 | |
| 58 | #define TMP_FREG1 (SLJIT_FLOAT_REG4 + 1) |
| 59 | #define TMP_FREG2 (SLJIT_FLOAT_REG4 + 2) |
| 60 | |
| 61 | /* --------------------------------------------------------------------- */ |
| 62 | /* Instrucion forms */ |
| 63 | /* --------------------------------------------------------------------- */ |
| 64 | #define D(d) (reg_map[d] << 21) |
| 65 | #define S(s) (reg_map[s] << 21) |
| 66 | #define A(a) (reg_map[a] << 16) |
| 67 | #define B(b) (reg_map[b] << 11) |
| 68 | #define C(c) (reg_map[c] << 6) |
| 69 | #define FD(fd) ((fd) << 21) |
| 70 | #define FA(fa) ((fa) << 16) |
| 71 | #define FB(fb) ((fb) << 11) |
| 72 | #define FC(fc) ((fc) << 6) |
| 73 | #define IMM(imm) ((imm) & 0xffff) |
| 74 | #define CRD(d) ((d) << 21) |
| 75 | |
| 76 | /* Instruction bit sections. |
| 77 | OE and Rc flag (see ALT_SET_FLAGS). */ |
| 78 | #define OERC(flags) (((flags & ALT_SET_FLAGS) >> 15) | ((flags & ALT_SET_FLAGS) >> 5)) |
| 79 | /* Rc flag (see ALT_SET_FLAGS). */ |
| 80 | #define RC(flags) ((flags & ALT_SET_FLAGS) >> 15) |
| 81 | #define HI(opcode) ((opcode) << 26) |
| 82 | #define LO(opcode) ((opcode) << 1) |
| 83 | |
| 84 | #define ADD (HI(31) | LO(266)) |
| 85 | #define ADDC (HI(31) | LO(10)) |
| 86 | #define ADDE (HI(31) | LO(138)) |
| 87 | #define ADDI (HI(14)) |
| 88 | #define ADDIC (HI(13)) |
| 89 | #define ADDIS (HI(15)) |
| 90 | #define ADDME (HI(31) | LO(234)) |
| 91 | #define AND (HI(31) | LO(28)) |
| 92 | #define ANDI (HI(28)) |
| 93 | #define ANDIS (HI(29)) |
| 94 | #define Bx (HI(18)) |
| 95 | #define BCx (HI(16)) |
| 96 | #define BCCTR (HI(19) | LO(528) | (3 << 11)) |
| 97 | #define BLR (HI(19) | LO(16) | (0x14 << 21)) |
| 98 | #define CNTLZD (HI(31) | LO(58)) |
| 99 | #define CNTLZW (HI(31) | LO(26)) |
| 100 | #define CMPI (HI(11)) |
| 101 | #define CMPL (HI(31) | LO(32)) |
| 102 | #define CMPLI (HI(10)) |
| 103 | #define CROR (HI(19) | LO(449)) |
| 104 | #define EXTSB (HI(31) | LO(954)) |
| 105 | #define EXTSH (HI(31) | LO(922)) |
| 106 | #define EXTSW (HI(31) | LO(986)) |
| 107 | #define FABS (HI(63) | LO(264)) |
| 108 | #define FADD (HI(63) | LO(21)) |
| 109 | #define FCMPU (HI(63) | LO(0)) |
| 110 | #define FDIV (HI(63) | LO(18)) |
| 111 | #define FMR (HI(63) | LO(72)) |
| 112 | #define FMUL (HI(63) | LO(25)) |
| 113 | #define FNEG (HI(63) | LO(40)) |
| 114 | #define FSUB (HI(63) | LO(20)) |
| 115 | #define LD (HI(58) | 0) |
| 116 | #define LFD (HI(50)) |
| 117 | #define LFDUX (HI(31) | LO(631)) |
| 118 | #define LFDX (HI(31) | LO(599)) |
| 119 | #define LWZ (HI(32)) |
| 120 | #define MFCR (HI(31) | LO(19)) |
| 121 | #define MFLR (HI(31) | LO(339) | 0x80000) |
| 122 | #define MFXER (HI(31) | LO(339) | 0x10000) |
| 123 | #define MTCTR (HI(31) | LO(467) | 0x90000) |
| 124 | #define MTLR (HI(31) | LO(467) | 0x80000) |
| 125 | #define MTXER (HI(31) | LO(467) | 0x10000) |
| 126 | #define MULLD (HI(31) | LO(233)) |
| 127 | #define MULLI (HI(7)) |
| 128 | #define MULLW (HI(31) | LO(235)) |
| 129 | #define NEG (HI(31) | LO(104)) |
| 130 | #define NOP (HI(24)) |
| 131 | #define NOR (HI(31) | LO(124)) |
| 132 | #define OR (HI(31) | LO(444)) |
| 133 | #define ORI (HI(24)) |
| 134 | #define ORIS (HI(25)) |
| 135 | #define RLDICL (HI(30)) |
| 136 | #define RLWINM (HI(21)) |
| 137 | #define SLD (HI(31) | LO(27)) |
| 138 | #define SLW (HI(31) | LO(24)) |
| 139 | #define SRAD (HI(31) | LO(794)) |
| 140 | #define SRADI (HI(31) | LO(413 << 1)) |
| 141 | #define SRAW (HI(31) | LO(792)) |
| 142 | #define SRAWI (HI(31) | LO(824)) |
| 143 | #define SRD (HI(31) | LO(539)) |
| 144 | #define SRW (HI(31) | LO(536)) |
| 145 | #define STD (HI(62) | 0) |
| 146 | #define STDU (HI(62) | 1) |
| 147 | #define STDUX (HI(31) | LO(181)) |
| 148 | #define STFD (HI(54)) |
| 149 | #define STFDUX (HI(31) | LO(759)) |
| 150 | #define STFDX (HI(31) | LO(727)) |
| 151 | #define STW (HI(36)) |
| 152 | #define STWU (HI(37)) |
| 153 | #define STWUX (HI(31) | LO(183)) |
| 154 | #define SUBF (HI(31) | LO(40)) |
| 155 | #define SUBFC (HI(31) | LO(8)) |
| 156 | #define SUBFE (HI(31) | LO(136)) |
| 157 | #define SUBFIC (HI(8)) |
| 158 | #define XOR (HI(31) | LO(316)) |
| 159 | #define XORI (HI(26)) |
| 160 | #define XORIS (HI(27)) |
| 161 | |
| 162 | #define SIMM_MAX (0x7fff) |
| 163 | #define SIMM_MIN (-0x8000) |
| 164 | #define UIMM_MAX (0xffff) |
| 165 | |
| 166 | /* SLJIT_LOCALS_REG is not the real stack register, since it must |
| 167 | point to the head of the stack chain. */ |
| 168 | static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 6] = { |
| 169 | 0, 3, 4, 5, 6, 7, 29, 28, 27, 26, 25, 31, 8, 9, 10, 30, 1 |
| 170 | }; |
| 171 | |
| 172 | static int push_inst(struct sljit_compiler *compiler, sljit_ins ins) |
| 173 | { |
| 174 | sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins)); |
| 175 | FAIL_IF(!ptr); |
| 176 | *ptr = ins; |
| 177 | compiler->size++; |
| 178 | return SLJIT_SUCCESS; |
| 179 | } |
| 180 | |
| 181 | static SLJIT_INLINE int optimize_jump(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code) |
| 182 | { |
| 183 | sljit_w diff; |
| 184 | sljit_uw target_addr; |
| 185 | |
| 186 | if (jump->flags & SLJIT_REWRITABLE_JUMP) |
| 187 | return 0; |
| 188 | |
| 189 | if (jump->flags & JUMP_ADDR) |
| 190 | target_addr = jump->u.target; |
| 191 | else { |
| 192 | SLJIT_ASSERT(jump->flags & JUMP_LABEL); |
| 193 | target_addr = (sljit_uw)(code + jump->u.label->size); |
| 194 | } |
| 195 | diff = ((sljit_w)target_addr - (sljit_w)(code_ptr)) & ~0x3l; |
| 196 | |
| 197 | if (jump->flags & UNCOND_B) { |
| 198 | if (diff <= 0x01ffffff && diff >= -0x02000000) { |
| 199 | jump->flags |= PATCH_B; |
| 200 | return 1; |
| 201 | } |
| 202 | if (target_addr <= 0x03ffffff) { |
| 203 | jump->flags |= PATCH_B | ABSOLUTE_B; |
| 204 | return 1; |
| 205 | } |
| 206 | } |
| 207 | else { |
| 208 | if (diff <= 0x7fff && diff >= -0x8000) { |
| 209 | jump->flags |= PATCH_B; |
| 210 | return 1; |
| 211 | } |
| 212 | if (target_addr <= 0xffff) { |
| 213 | jump->flags |= PATCH_B | ABSOLUTE_B; |
| 214 | return 1; |
| 215 | } |
| 216 | } |
| 217 | return 0; |
| 218 | } |
| 219 | |
| 220 | SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler) |
| 221 | { |
| 222 | struct sljit_memory_fragment *buf; |
| 223 | sljit_ins *code; |
| 224 | sljit_ins *code_ptr; |
| 225 | sljit_ins *buf_ptr; |
| 226 | sljit_ins *buf_end; |
| 227 | sljit_uw word_count; |
| 228 | sljit_uw addr; |
| 229 | |
| 230 | struct sljit_label *label; |
| 231 | struct sljit_jump *jump; |
| 232 | struct sljit_const *const_; |
| 233 | |
| 234 | CHECK_ERROR_PTR(); |
| 235 | check_sljit_generate_code(compiler); |
| 236 | reverse_buf(compiler); |
| 237 | |
| 238 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 239 | compiler->size += (compiler->size & 0x1) + (sizeof(struct sljit_function_context) / sizeof(sljit_ins)); |
| 240 | #endif |
| 241 | code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins)); |
| 242 | PTR_FAIL_WITH_EXEC_IF(code); |
| 243 | buf = compiler->buf; |
| 244 | |
| 245 | code_ptr = code; |
| 246 | word_count = 0; |
| 247 | label = compiler->labels; |
| 248 | jump = compiler->jumps; |
| 249 | const_ = compiler->consts; |
| 250 | do { |
| 251 | buf_ptr = (sljit_ins*)buf->memory; |
| 252 | buf_end = buf_ptr + (buf->used_size >> 2); |
| 253 | do { |
| 254 | *code_ptr = *buf_ptr++; |
| 255 | SLJIT_ASSERT(!label || label->size >= word_count); |
| 256 | SLJIT_ASSERT(!jump || jump->addr >= word_count); |
| 257 | SLJIT_ASSERT(!const_ || const_->addr >= word_count); |
| 258 | /* These structures are ordered by their address. */ |
| 259 | if (label && label->size == word_count) { |
| 260 | /* Just recording the address. */ |
| 261 | label->addr = (sljit_uw)code_ptr; |
| 262 | label->size = code_ptr - code; |
| 263 | label = label->next; |
| 264 | } |
| 265 | if (jump && jump->addr == word_count) { |
| 266 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 267 | jump->addr = (sljit_uw)(code_ptr - 3); |
| 268 | #else |
| 269 | jump->addr = (sljit_uw)(code_ptr - 6); |
| 270 | #endif |
| 271 | if (optimize_jump(jump, code_ptr, code)) { |
| 272 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 273 | code_ptr[-3] = code_ptr[0]; |
| 274 | code_ptr -= 3; |
| 275 | #else |
| 276 | code_ptr[-6] = code_ptr[0]; |
| 277 | code_ptr -= 6; |
| 278 | #endif |
| 279 | } |
| 280 | jump = jump->next; |
| 281 | } |
| 282 | if (const_ && const_->addr == word_count) { |
| 283 | /* Just recording the address. */ |
| 284 | const_->addr = (sljit_uw)code_ptr; |
| 285 | const_ = const_->next; |
| 286 | } |
| 287 | code_ptr ++; |
| 288 | word_count ++; |
| 289 | } while (buf_ptr < buf_end); |
| 290 | |
| 291 | buf = buf->next; |
| 292 | } while (buf); |
| 293 | |
| 294 | if (label && label->size == word_count) { |
| 295 | label->addr = (sljit_uw)code_ptr; |
| 296 | label->size = code_ptr - code; |
| 297 | label = label->next; |
| 298 | } |
| 299 | |
| 300 | SLJIT_ASSERT(!label); |
| 301 | SLJIT_ASSERT(!jump); |
| 302 | SLJIT_ASSERT(!const_); |
| 303 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 304 | SLJIT_ASSERT(code_ptr - code <= (int)compiler->size - ((compiler->size & 0x1) ? 3 : 2)); |
| 305 | #else |
| 306 | SLJIT_ASSERT(code_ptr - code <= (int)compiler->size); |
| 307 | #endif |
| 308 | |
| 309 | jump = compiler->jumps; |
| 310 | while (jump) { |
| 311 | do { |
| 312 | addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target; |
| 313 | buf_ptr = (sljit_ins*)jump->addr; |
| 314 | if (jump->flags & PATCH_B) { |
| 315 | if (jump->flags & UNCOND_B) { |
| 316 | if (!(jump->flags & ABSOLUTE_B)) { |
| 317 | addr = addr - jump->addr; |
| 318 | SLJIT_ASSERT((sljit_w)addr <= 0x01ffffff && (sljit_w)addr >= -0x02000000); |
| 319 | *buf_ptr = Bx | (addr & 0x03fffffc) | ((*buf_ptr) & 0x1); |
| 320 | } |
| 321 | else { |
| 322 | SLJIT_ASSERT(addr <= 0x03ffffff); |
| 323 | *buf_ptr = Bx | (addr & 0x03fffffc) | 0x2 | ((*buf_ptr) & 0x1); |
| 324 | } |
| 325 | } |
| 326 | else { |
| 327 | if (!(jump->flags & ABSOLUTE_B)) { |
| 328 | addr = addr - jump->addr; |
| 329 | SLJIT_ASSERT((sljit_w)addr <= 0x7fff && (sljit_w)addr >= -0x8000); |
| 330 | *buf_ptr = BCx | (addr & 0xfffc) | ((*buf_ptr) & 0x03ff0001); |
| 331 | } |
| 332 | else { |
| 333 | addr = addr & ~0x3l; |
| 334 | SLJIT_ASSERT(addr <= 0xffff); |
| 335 | *buf_ptr = BCx | (addr & 0xfffc) | 0x2 | ((*buf_ptr) & 0x03ff0001); |
| 336 | } |
| 337 | |
| 338 | } |
| 339 | break; |
| 340 | } |
| 341 | /* Set the fields of immediate loads. */ |
| 342 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 343 | buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff); |
| 344 | buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff); |
| 345 | #else |
| 346 | buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff); |
| 347 | buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff); |
| 348 | buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff); |
| 349 | buf_ptr[4] = (buf_ptr[4] & 0xffff0000) | (addr & 0xffff); |
| 350 | #endif |
| 351 | } while (0); |
| 352 | jump = jump->next; |
| 353 | } |
| 354 | |
| 355 | SLJIT_CACHE_FLUSH(code, code_ptr); |
| 356 | compiler->error = SLJIT_ERR_COMPILED; |
| 357 | compiler->executable_size = compiler->size * sizeof(sljit_ins); |
| 358 | |
| 359 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 360 | if (((sljit_w)code_ptr) & 0x4) |
| 361 | code_ptr++; |
| 362 | sljit_set_function_context(NULL, (struct sljit_function_context*)code_ptr, (sljit_w)code, sljit_generate_code); |
| 363 | return code_ptr; |
| 364 | #else |
| 365 | return code; |
| 366 | #endif |
| 367 | } |
| 368 | |
| 369 | /* inp_flags: */ |
| 370 | |
| 371 | /* Creates an index in data_transfer_insts array. */ |
| 372 | #define WORD_DATA 0x00 |
| 373 | #define BYTE_DATA 0x01 |
| 374 | #define HALF_DATA 0x02 |
| 375 | #define INT_DATA 0x03 |
| 376 | #define SIGNED_DATA 0x04 |
| 377 | #define LOAD_DATA 0x08 |
| 378 | #define WRITE_BACK 0x10 |
| 379 | #define INDEXED 0x20 |
| 380 | |
| 381 | #define MEM_MASK 0x3f |
| 382 | |
| 383 | /* Other inp_flags. */ |
| 384 | |
| 385 | #define ARG_TEST 0x0100 |
| 386 | #define ALT_FORM1 0x0200 |
| 387 | #define ALT_FORM2 0x0400 |
| 388 | #define ALT_FORM3 0x0800 |
| 389 | #define ALT_FORM4 0x1000 |
| 390 | #define ALT_FORM5 0x2000 |
| 391 | /* Integer opertion and set flags -> requires exts on 64 bit systems. */ |
| 392 | #define ALT_SIGN_EXT 0x4000 |
| 393 | /* This flag affects the RC() and OERC() macros. */ |
| 394 | #define ALT_SET_FLAGS 0x8000 |
| 395 | |
| 396 | /* Source and destination is register. */ |
| 397 | #define REG_DEST 0x0001 |
| 398 | #define REG1_SOURCE 0x0002 |
| 399 | #define REG2_SOURCE 0x0004 |
| 400 | /* getput_arg_fast returned true. */ |
| 401 | #define FAST_DEST 0x0008 |
| 402 | /* Multiple instructions are required. */ |
| 403 | #define SLOW_DEST 0x0010 |
| 404 | /* ALT_FORM1 0x0200 |
| 405 | ALT_FORM2 0x0400 |
| 406 | ALT_FORM3 0x0800 |
| 407 | ALT_FORM4 0x1000 |
| 408 | ALT_FORM5 0x2000 |
| 409 | ALT_SIGN_EXT 0x4000 |
| 410 | ALT_SET_FLAGS 0x8000 */ |
| 411 | |
| 412 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 413 | #include "sljitNativePPC_32.c" |
| 414 | #else |
| 415 | #include "sljitNativePPC_64.c" |
| 416 | #endif |
| 417 | |
| 418 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 419 | #define STACK_STORE STW |
| 420 | #define STACK_LOAD LWZ |
| 421 | #else |
| 422 | #define STACK_STORE STD |
| 423 | #define STACK_LOAD LD |
| 424 | #endif |
| 425 | |
| 426 | static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags, |
| 427 | int dst, sljit_w dstw, |
| 428 | int src1, sljit_w src1w, |
| 429 | int src2, sljit_w src2w); |
| 430 | |
| 431 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int generals, int local_size) |
| 432 | { |
| 433 | CHECK_ERROR(); |
| 434 | check_sljit_emit_enter(compiler, args, temporaries, generals, local_size); |
| 435 | |
| 436 | compiler->temporaries = temporaries; |
| 437 | compiler->generals = generals; |
| 438 | compiler->has_locals = local_size > 0; |
| 439 | |
| 440 | FAIL_IF(push_inst(compiler, MFLR | D(0))); |
| 441 | if (compiler->has_locals) |
| 442 | FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_LOCALS_REG) | A(REAL_STACK_PTR) | IMM(-(int)(sizeof(sljit_w))) )); |
| 443 | FAIL_IF(push_inst(compiler, STACK_STORE | S(ZERO_REG) | A(REAL_STACK_PTR) | IMM(-2 * (int)(sizeof(sljit_w))) )); |
| 444 | if (generals >= 1) |
| 445 | FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_GENERAL_REG1) | A(REAL_STACK_PTR) | IMM(-3 * (int)(sizeof(sljit_w))) )); |
| 446 | if (generals >= 2) |
| 447 | FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_GENERAL_REG2) | A(REAL_STACK_PTR) | IMM(-4 * (int)(sizeof(sljit_w))) )); |
| 448 | if (generals >= 3) |
| 449 | FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_GENERAL_REG3) | A(REAL_STACK_PTR) | IMM(-5 * (int)(sizeof(sljit_w))) )); |
| 450 | if (generals >= 4) |
| 451 | FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_GENERAL_EREG1) | A(REAL_STACK_PTR) | IMM(-6 * (int)(sizeof(sljit_w))) )); |
| 452 | if (generals >= 5) |
| 453 | FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_GENERAL_EREG2) | A(REAL_STACK_PTR) | IMM(-7 * (int)(sizeof(sljit_w))) )); |
| 454 | FAIL_IF(push_inst(compiler, STACK_STORE | S(0) | A(REAL_STACK_PTR) | IMM(sizeof(sljit_w)) )); |
| 455 | |
| 456 | FAIL_IF(push_inst(compiler, ADDI | D(ZERO_REG) | A(0) | 0)); |
| 457 | if (args >= 1) |
| 458 | FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG1) | A(SLJIT_GENERAL_REG1) | B(SLJIT_TEMPORARY_REG1))); |
| 459 | if (args >= 2) |
| 460 | FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG2) | A(SLJIT_GENERAL_REG2) | B(SLJIT_TEMPORARY_REG2))); |
| 461 | if (args >= 3) |
| 462 | FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG3) | A(SLJIT_GENERAL_REG3) | B(SLJIT_TEMPORARY_REG3))); |
| 463 | |
| 464 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 465 | compiler->local_size = (2 + generals + 2) * sizeof(sljit_w) + local_size; |
| 466 | #else |
| 467 | compiler->local_size = (2 + generals + 7 + 8) * sizeof(sljit_w) + local_size; |
| 468 | #endif |
| 469 | compiler->local_size = (compiler->local_size + 15) & ~0xf; |
| 470 | |
| 471 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 472 | if (compiler->local_size <= SIMM_MAX) |
| 473 | FAIL_IF(push_inst(compiler, STWU | S(REAL_STACK_PTR) | A(REAL_STACK_PTR) | IMM(-compiler->local_size))); |
| 474 | else { |
| 475 | FAIL_IF(load_immediate(compiler, 0, -compiler->local_size)); |
| 476 | FAIL_IF(push_inst(compiler, STWUX | S(REAL_STACK_PTR) | A(REAL_STACK_PTR) | B(0))); |
| 477 | } |
| 478 | if (compiler->has_locals) |
| 479 | FAIL_IF(push_inst(compiler, ADDI | D(SLJIT_LOCALS_REG) | A(REAL_STACK_PTR) | IMM(2 * sizeof(sljit_w)))); |
| 480 | #else |
| 481 | if (compiler->local_size <= SIMM_MAX) |
| 482 | FAIL_IF(push_inst(compiler, STDU | S(REAL_STACK_PTR) | A(REAL_STACK_PTR) | IMM(-compiler->local_size))); |
| 483 | else { |
| 484 | FAIL_IF(load_immediate(compiler, 0, -compiler->local_size)); |
| 485 | FAIL_IF(push_inst(compiler, STDUX | S(REAL_STACK_PTR) | A(REAL_STACK_PTR) | B(0))); |
| 486 | } |
| 487 | if (compiler->has_locals) |
| 488 | FAIL_IF(push_inst(compiler, ADDI | D(SLJIT_LOCALS_REG) | A(REAL_STACK_PTR) | IMM((7 + 8) * sizeof(sljit_w)))); |
| 489 | #endif |
| 490 | |
| 491 | return SLJIT_SUCCESS; |
| 492 | } |
| 493 | |
| 494 | SLJIT_API_FUNC_ATTRIBUTE void sljit_fake_enter(struct sljit_compiler *compiler, int args, int temporaries, int generals, int local_size) |
| 495 | { |
| 496 | CHECK_ERROR_VOID(); |
| 497 | check_sljit_fake_enter(compiler, args, temporaries, generals, local_size); |
| 498 | |
| 499 | compiler->temporaries = temporaries; |
| 500 | compiler->generals = generals; |
| 501 | |
| 502 | compiler->has_locals = local_size > 0; |
| 503 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 504 | compiler->local_size = (2 + generals + 2) * sizeof(sljit_w) + local_size; |
| 505 | #else |
| 506 | compiler->local_size = (2 + generals + 7 + 8) * sizeof(sljit_w) + local_size; |
| 507 | #endif |
| 508 | compiler->local_size = (compiler->local_size + 15) & ~0xf; |
| 509 | } |
| 510 | |
| 511 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int src, sljit_w srcw) |
| 512 | { |
| 513 | CHECK_ERROR(); |
| 514 | check_sljit_emit_return(compiler, src, srcw); |
| 515 | |
| 516 | if (src != SLJIT_UNUSED && src != SLJIT_RETURN_REG) |
| 517 | FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, SLJIT_RETURN_REG, 0, TMP_REG1, 0, src, srcw)); |
| 518 | |
| 519 | if (compiler->local_size <= SIMM_MAX) |
| 520 | FAIL_IF(push_inst(compiler, ADDI | D(REAL_STACK_PTR) | A(REAL_STACK_PTR) | IMM(compiler->local_size))); |
| 521 | else { |
| 522 | FAIL_IF(load_immediate(compiler, 0, compiler->local_size)); |
| 523 | FAIL_IF(push_inst(compiler, ADD | D(REAL_STACK_PTR) | A(REAL_STACK_PTR) | B(0))); |
| 524 | } |
| 525 | |
| 526 | FAIL_IF(push_inst(compiler, STACK_LOAD | D(0) | A(REAL_STACK_PTR) | IMM(sizeof(sljit_w)))); |
| 527 | if (compiler->generals >= 5) |
| 528 | FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_GENERAL_EREG2) | A(REAL_STACK_PTR) | IMM(-7 * (int)(sizeof(sljit_w))) )); |
| 529 | if (compiler->generals >= 4) |
| 530 | FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_GENERAL_EREG1) | A(REAL_STACK_PTR) | IMM(-6 * (int)(sizeof(sljit_w))) )); |
| 531 | if (compiler->generals >= 3) |
| 532 | FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_GENERAL_REG3) | A(REAL_STACK_PTR) | IMM(-5 * (int)(sizeof(sljit_w))) )); |
| 533 | if (compiler->generals >= 2) |
| 534 | FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_GENERAL_REG2) | A(REAL_STACK_PTR) | IMM(-4 * (int)(sizeof(sljit_w))) )); |
| 535 | if (compiler->generals >= 1) |
| 536 | FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_GENERAL_REG1) | A(REAL_STACK_PTR) | IMM(-3 * (int)(sizeof(sljit_w))) )); |
| 537 | FAIL_IF(push_inst(compiler, STACK_LOAD | D(ZERO_REG) | A(REAL_STACK_PTR) | IMM(-2 * (int)(sizeof(sljit_w))) )); |
| 538 | if (compiler->has_locals) |
| 539 | FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_LOCALS_REG) | A(REAL_STACK_PTR) | IMM(-(int)(sizeof(sljit_w))) )); |
| 540 | |
| 541 | FAIL_IF(push_inst(compiler, MTLR | S(0))); |
| 542 | FAIL_IF(push_inst(compiler, BLR)); |
| 543 | |
| 544 | return SLJIT_SUCCESS; |
| 545 | } |
| 546 | |
| 547 | #undef STACK_STORE |
| 548 | #undef STACK_LOAD |
| 549 | |
| 550 | /* --------------------------------------------------------------------- */ |
| 551 | /* Operators */ |
| 552 | /* --------------------------------------------------------------------- */ |
| 553 | |
| 554 | /* i/x - immediate/indexed form |
| 555 | n/w - no write-back / write-back (1 bit) |
| 556 | s/l - store/load (1 bit) |
| 557 | u/s - signed/unsigned (1 bit) |
| 558 | w/b/h/i - word/byte/half/int allowed (2 bit) |
| 559 | It contans 32 items, but not all are different. */ |
| 560 | |
| 561 | /* 64 bit only: [reg+imm] must be aligned to 4 bytes. */ |
| 562 | #define ADDR_MODE2 0x10000 |
| 563 | /* 64-bit only: there is no lwau instruction. */ |
| 564 | #define UPDATE_REQ 0x20000 |
| 565 | |
| 566 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 567 | #define ARCH_DEPEND(a, b) a |
| 568 | #define GET_INST_CODE(inst) (inst) |
| 569 | #else |
| 570 | #define ARCH_DEPEND(a, b) b |
| 571 | #define GET_INST_CODE(index) ((inst) & ~(ADDR_MODE2 | UPDATE_REQ)) |
| 572 | #endif |
| 573 | |
| 574 | static SLJIT_CONST sljit_ins data_transfer_insts[64] = { |
| 575 | |
| 576 | /* No write-back. */ |
| 577 | |
| 578 | /* i n s u w */ ARCH_DEPEND(HI(36) /* stw */, HI(62) | ADDR_MODE2 | 0x0 /* std */), |
| 579 | /* i n s u b */ HI(38) /* stb */, |
| 580 | /* i n s u h */ HI(44) /* sth*/, |
| 581 | /* i n s u i */ HI(36) /* stw */, |
| 582 | |
| 583 | /* i n s s w */ ARCH_DEPEND(HI(36) /* stw */, HI(62) | ADDR_MODE2 | 0x0 /* std */), |
| 584 | /* i n s s b */ HI(38) /* stb */, |
| 585 | /* i n s s h */ HI(44) /* sth*/, |
| 586 | /* i n s s i */ HI(36) /* stw */, |
| 587 | |
| 588 | /* i n l u w */ ARCH_DEPEND(HI(32) /* lwz */, HI(58) | ADDR_MODE2 | 0x0 /* ld */), |
| 589 | /* i n l u b */ HI(34) /* lbz */, |
| 590 | /* i n l u h */ HI(40) /* lhz */, |
| 591 | /* i n l u i */ HI(32) /* lwz */, |
| 592 | |
| 593 | /* i n l s w */ ARCH_DEPEND(HI(32) /* lwz */, HI(58) | ADDR_MODE2 | 0x0 /* ld */), |
| 594 | /* i n l s b */ HI(34) /* lbz */ /* EXTS_REQ */, |
| 595 | /* i n l s h */ HI(42) /* lha */, |
| 596 | /* i n l s i */ ARCH_DEPEND(HI(32) /* lwz */, HI(58) | ADDR_MODE2 | 0x2 /* lwa */), |
| 597 | |
| 598 | /* Write-back. */ |
| 599 | |
| 600 | /* i w s u w */ ARCH_DEPEND(HI(37) /* stwu */, HI(62) | ADDR_MODE2 | 0x1 /* stdu */), |
| 601 | /* i w s u b */ HI(39) /* stbu */, |
| 602 | /* i w s u h */ HI(45) /* sthu */, |
| 603 | /* i w s u i */ HI(37) /* stwu */, |
| 604 | |
| 605 | /* i w s s w */ ARCH_DEPEND(HI(37) /* stwu */, HI(62) | ADDR_MODE2 | 0x1 /* stdu */), |
| 606 | /* i w s s b */ HI(39) /* stbu */, |
| 607 | /* i w s s h */ HI(45) /* sthu */, |
| 608 | /* i w s s i */ HI(37) /* stwu */, |
| 609 | |
| 610 | /* i w l u w */ ARCH_DEPEND(HI(33) /* lwzu */, HI(58) | ADDR_MODE2 | 0x1 /* ldu */), |
| 611 | /* i w l u b */ HI(35) /* lbzu */, |
| 612 | /* i w l u h */ HI(41) /* lhzu */, |
| 613 | /* i w l u i */ HI(33) /* lwzu */, |
| 614 | |
| 615 | /* i w l s w */ ARCH_DEPEND(HI(33) /* lwzu */, HI(58) | ADDR_MODE2 | 0x1 /* ldu */), |
| 616 | /* i w l s b */ HI(35) /* lbzu */ /* EXTS_REQ */, |
| 617 | /* i w l s h */ HI(43) /* lhau */, |
| 618 | /* i w l s i */ ARCH_DEPEND(HI(33) /* lwzu */, HI(58) | ADDR_MODE2 | UPDATE_REQ | 0x2 /* lwa */), |
| 619 | |
| 620 | /* ---------- */ |
| 621 | /* Indexed */ |
| 622 | /* ---------- */ |
| 623 | |
| 624 | /* No write-back. */ |
| 625 | |
| 626 | /* x n s u w */ ARCH_DEPEND(HI(31) | LO(151) /* stwx */, HI(31) | LO(149) /* stdx */), |
| 627 | /* x n s u b */ HI(31) | LO(215) /* stbx */, |
| 628 | /* x n s u h */ HI(31) | LO(407) /* sthx */, |
| 629 | /* x n s u i */ HI(31) | LO(151) /* stwx */, |
| 630 | |
| 631 | /* x n s s w */ ARCH_DEPEND(HI(31) | LO(151) /* stwx */, HI(31) | LO(149) /* stdx */), |
| 632 | /* x n s s b */ HI(31) | LO(215) /* stbx */, |
| 633 | /* x n s s h */ HI(31) | LO(407) /* sthx */, |
| 634 | /* x n s s i */ HI(31) | LO(151) /* stwx */, |
| 635 | |
| 636 | /* x n l u w */ ARCH_DEPEND(HI(31) | LO(23) /* lwzx */, HI(31) | LO(21) /* ldx */), |
| 637 | /* x n l u b */ HI(31) | LO(87) /* lbzx */, |
| 638 | /* x n l u h */ HI(31) | LO(279) /* lhzx */, |
| 639 | /* x n l u i */ HI(31) | LO(23) /* lwzx */, |
| 640 | |
| 641 | /* x n l s w */ ARCH_DEPEND(HI(31) | LO(23) /* lwzx */, HI(31) | LO(21) /* ldx */), |
| 642 | /* x n l s b */ HI(31) | LO(87) /* lbzx */ /* EXTS_REQ */, |
| 643 | /* x n l s h */ HI(31) | LO(343) /* lhax */, |
| 644 | /* x n l s i */ ARCH_DEPEND(HI(31) | LO(23) /* lwzx */, HI(31) | LO(341) /* lwax */), |
| 645 | |
| 646 | /* Write-back. */ |
| 647 | |
| 648 | /* x w s u w */ ARCH_DEPEND(HI(31) | LO(183) /* stwux */, HI(31) | LO(181) /* stdux */), |
| 649 | /* x w s u b */ HI(31) | LO(247) /* stbux */, |
| 650 | /* x w s u h */ HI(31) | LO(439) /* sthux */, |
| 651 | /* x w s u i */ HI(31) | LO(183) /* stwux */, |
| 652 | |
| 653 | /* x w s s w */ ARCH_DEPEND(HI(31) | LO(183) /* stwux */, HI(31) | LO(181) /* stdux */), |
| 654 | /* x w s s b */ HI(31) | LO(247) /* stbux */, |
| 655 | /* x w s s h */ HI(31) | LO(439) /* sthux */, |
| 656 | /* x w s s i */ HI(31) | LO(183) /* stwux */, |
| 657 | |
| 658 | /* x w l u w */ ARCH_DEPEND(HI(31) | LO(55) /* lwzux */, HI(31) | LO(53) /* ldux */), |
| 659 | /* x w l u b */ HI(31) | LO(119) /* lbzux */, |
| 660 | /* x w l u h */ HI(31) | LO(311) /* lhzux */, |
| 661 | /* x w l u i */ HI(31) | LO(55) /* lwzux */, |
| 662 | |
| 663 | /* x w l s w */ ARCH_DEPEND(HI(31) | LO(55) /* lwzux */, HI(31) | LO(53) /* ldux */), |
| 664 | /* x w l s b */ HI(31) | LO(119) /* lbzux */ /* EXTS_REQ */, |
| 665 | /* x w l s h */ HI(31) | LO(375) /* lhaux */, |
| 666 | /* x w l s i */ ARCH_DEPEND(HI(31) | LO(55) /* lwzux */, HI(31) | LO(373) /* lwaux */) |
| 667 | |
| 668 | }; |
| 669 | |
| 670 | #undef ARCH_DEPEND |
| 671 | |
| 672 | /* Simple cases, (no caching is required). */ |
| 673 | static int getput_arg_fast(struct sljit_compiler *compiler, int inp_flags, int reg, int arg, sljit_w argw) |
| 674 | { |
| 675 | sljit_ins inst; |
| 676 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 677 | int tmp_reg; |
| 678 | #endif |
| 679 | |
| 680 | SLJIT_ASSERT(arg & SLJIT_MEM); |
| 681 | if (!(arg & 0xf)) { |
| 682 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 683 | if (argw <= SIMM_MAX && argw >= SIMM_MIN) { |
| 684 | if (inp_flags & ARG_TEST) |
| 685 | return 1; |
| 686 | |
| 687 | inst = data_transfer_insts[(inp_flags & ~WRITE_BACK) & MEM_MASK]; |
| 688 | SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ))); |
| 689 | push_inst(compiler, GET_INST_CODE(inst) | D(reg) | IMM(argw)); |
| 690 | return -1; |
| 691 | } |
| 692 | #else |
| 693 | inst = data_transfer_insts[(inp_flags & ~WRITE_BACK) & MEM_MASK]; |
| 694 | if (argw <= SIMM_MAX && argw >= SIMM_MIN && |
| 695 | (!(inst & ADDR_MODE2) || (argw & 0x3) == 0)) { |
| 696 | if (inp_flags & ARG_TEST) |
| 697 | return 1; |
| 698 | |
| 699 | push_inst(compiler, GET_INST_CODE(inst) | D(reg) | IMM(argw)); |
| 700 | return -1; |
| 701 | } |
| 702 | #endif |
| 703 | return (inp_flags & ARG_TEST) ? SLJIT_SUCCESS : 0; |
| 704 | } |
| 705 | |
| 706 | if (!(arg & 0xf0)) { |
| 707 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 708 | if (argw <= SIMM_MAX && argw >= SIMM_MIN) { |
| 709 | if (inp_flags & ARG_TEST) |
| 710 | return 1; |
| 711 | |
| 712 | inst = data_transfer_insts[inp_flags & MEM_MASK]; |
| 713 | SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ))); |
| 714 | push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | IMM(argw)); |
| 715 | return -1; |
| 716 | } |
| 717 | #else |
| 718 | inst = data_transfer_insts[inp_flags & MEM_MASK]; |
| 719 | if (argw <= SIMM_MAX && argw >= SIMM_MIN && (!(inst & ADDR_MODE2) || (argw & 0x3) == 0)) { |
| 720 | if (inp_flags & ARG_TEST) |
| 721 | return 1; |
| 722 | |
| 723 | if ((inp_flags & WRITE_BACK) && (inst & UPDATE_REQ)) { |
| 724 | tmp_reg = (inp_flags & LOAD_DATA) ? (arg & 0xf) : TMP_REG3; |
| 725 | if (push_inst(compiler, ADDI | D(tmp_reg) | A(arg & 0xf) | IMM(argw))) |
| 726 | return -1; |
| 727 | arg = tmp_reg | SLJIT_MEM; |
| 728 | argw = 0; |
| 729 | } |
| 730 | push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | IMM(argw)); |
| 731 | return -1; |
| 732 | } |
| 733 | #endif |
| 734 | } |
| 735 | else if (!(argw & 0x3)) { |
| 736 | if (inp_flags & ARG_TEST) |
| 737 | return 1; |
| 738 | inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK]; |
| 739 | SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ))); |
| 740 | push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B((arg >> 4) & 0xf)); |
| 741 | return -1; |
| 742 | } |
| 743 | return (inp_flags & ARG_TEST) ? SLJIT_SUCCESS : 0; |
| 744 | } |
| 745 | |
| 746 | /* See getput_arg below. |
| 747 | Note: can_cache is called only for binary operators. Those operator always |
| 748 | uses word arguments without write back. */ |
| 749 | static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw) |
| 750 | { |
| 751 | SLJIT_ASSERT(arg & SLJIT_MEM); |
| 752 | SLJIT_ASSERT(next_arg & SLJIT_MEM); |
| 753 | |
| 754 | if (!(arg & 0xf)) { |
| 755 | if ((next_arg & SLJIT_MEM) && ((sljit_uw)argw - (sljit_uw)next_argw <= SIMM_MAX || (sljit_uw)next_argw - (sljit_uw)argw <= SIMM_MAX)) |
| 756 | return 1; |
| 757 | return 0; |
| 758 | } |
| 759 | |
| 760 | if (arg & 0xf0) |
| 761 | return 0; |
| 762 | |
| 763 | if (argw <= SIMM_MAX && argw >= SIMM_MIN) { |
| 764 | if (arg == next_arg && (next_argw >= SIMM_MAX && next_argw <= SIMM_MIN)) |
| 765 | return 1; |
| 766 | } |
| 767 | |
| 768 | if (arg == next_arg && ((sljit_uw)argw - (sljit_uw)next_argw <= SIMM_MAX || (sljit_uw)next_argw - (sljit_uw)argw <= SIMM_MAX)) |
| 769 | return 1; |
| 770 | |
| 771 | return 0; |
| 772 | } |
| 773 | |
| 774 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 775 | #define ADJUST_CACHED_IMM(imm) \ |
| 776 | if ((inst & ADDR_MODE2) && (imm & 0x3)) { \ |
| 777 | /* Adjust cached value. Fortunately this is really a rare case */ \ |
| 778 | compiler->cache_argw += imm & 0x3; \ |
| 779 | FAIL_IF(push_inst(compiler, ADDI | D(TMP_REG3) | A(TMP_REG3) | (imm & 0x3))); \ |
| 780 | imm &= ~0x3; \ |
| 781 | } |
| 782 | #else |
| 783 | #define ADJUST_CACHED_IMM(imm) |
| 784 | #endif |
| 785 | |
| 786 | /* Emit the necessary instructions. See can_cache above. */ |
| 787 | static int getput_arg(struct sljit_compiler *compiler, int inp_flags, int reg, int arg, sljit_w argw, int next_arg, sljit_w next_argw) |
| 788 | { |
| 789 | int tmp_r; |
| 790 | sljit_ins inst; |
| 791 | |
| 792 | SLJIT_ASSERT(arg & SLJIT_MEM); |
| 793 | |
| 794 | tmp_r = (inp_flags & LOAD_DATA) ? reg : TMP_REG3; |
| 795 | if ((arg & 0xf) == tmp_r) { |
| 796 | /* Special case for "mov reg, [reg, ... ]". |
| 797 | Caching would not happen anyway. */ |
| 798 | tmp_r = TMP_REG3; |
| 799 | compiler->cache_arg = 0; |
| 800 | compiler->cache_argw = 0; |
| 801 | } |
| 802 | |
| 803 | if (!(arg & 0xf)) { |
| 804 | inst = data_transfer_insts[(inp_flags & ~WRITE_BACK) & MEM_MASK]; |
| 805 | if ((compiler->cache_arg & SLJIT_IMM) && (((sljit_uw)argw - (sljit_uw)compiler->cache_argw) <= SIMM_MAX || ((sljit_uw)compiler->cache_argw - (sljit_uw)argw) <= SIMM_MAX)) { |
| 806 | argw = argw - compiler->cache_argw; |
| 807 | ADJUST_CACHED_IMM(argw); |
| 808 | SLJIT_ASSERT(!(inst & UPDATE_REQ)); |
| 809 | return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(TMP_REG3) | IMM(argw)); |
| 810 | } |
| 811 | |
| 812 | if ((next_arg & SLJIT_MEM) && (argw - next_argw <= SIMM_MAX || next_argw - argw <= SIMM_MAX)) { |
| 813 | SLJIT_ASSERT(inp_flags & LOAD_DATA); |
| 814 | |
| 815 | compiler->cache_arg = SLJIT_IMM; |
| 816 | compiler->cache_argw = argw; |
| 817 | tmp_r = TMP_REG3; |
| 818 | } |
| 819 | |
| 820 | FAIL_IF(load_immediate(compiler, tmp_r, argw)); |
| 821 | return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(tmp_r)); |
| 822 | } |
| 823 | |
| 824 | if (SLJIT_UNLIKELY(arg & 0xf0)) { |
| 825 | argw &= 0x3; |
| 826 | /* Otherwise getput_arg_fast would capture it. */ |
| 827 | SLJIT_ASSERT(argw); |
| 828 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 829 | FAIL_IF(push_inst(compiler, RLWINM | S((arg >> 4) & 0xf) | A(tmp_r) | (argw << 11) | ((31 - argw) << 1))); |
| 830 | #else |
| 831 | FAIL_IF(push_inst(compiler, RLDI(tmp_r, (arg >> 4) & 0xf, argw, 63 - argw, 1))); |
| 832 | #endif |
| 833 | inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK]; |
| 834 | SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ))); |
| 835 | return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(tmp_r)); |
| 836 | } |
| 837 | |
| 838 | inst = data_transfer_insts[inp_flags & MEM_MASK]; |
| 839 | |
| 840 | if (compiler->cache_arg == arg && ((sljit_uw)argw - (sljit_uw)compiler->cache_argw <= SIMM_MAX || (sljit_uw)compiler->cache_argw - (sljit_uw)argw <= SIMM_MAX)) { |
| 841 | SLJIT_ASSERT(!(inp_flags & WRITE_BACK)); |
| 842 | argw = argw - compiler->cache_argw; |
| 843 | ADJUST_CACHED_IMM(argw); |
| 844 | return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(TMP_REG3) | IMM(argw)); |
| 845 | } |
| 846 | |
| 847 | if ((compiler->cache_arg & SLJIT_IMM) && compiler->cache_argw == argw) { |
| 848 | inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK]; |
| 849 | SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ))); |
| 850 | return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(TMP_REG3)); |
| 851 | } |
| 852 | |
| 853 | if (argw == next_argw && (next_arg & SLJIT_MEM)) { |
| 854 | SLJIT_ASSERT(inp_flags & LOAD_DATA); |
| 855 | FAIL_IF(load_immediate(compiler, TMP_REG3, argw)); |
| 856 | |
| 857 | compiler->cache_arg = SLJIT_IMM; |
| 858 | compiler->cache_argw = argw; |
| 859 | |
| 860 | inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK]; |
| 861 | SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ))); |
| 862 | return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(TMP_REG3)); |
| 863 | } |
| 864 | |
| 865 | if (arg == next_arg && !(inp_flags & WRITE_BACK) && ((sljit_uw)argw - (sljit_uw)next_argw <= SIMM_MAX || (sljit_uw)next_argw - (sljit_uw)argw <= SIMM_MAX)) { |
| 866 | SLJIT_ASSERT(inp_flags & LOAD_DATA); |
| 867 | FAIL_IF(load_immediate(compiler, TMP_REG3, argw)); |
| 868 | FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | A(TMP_REG3) | B(arg & 0xf))); |
| 869 | |
| 870 | compiler->cache_arg = arg; |
| 871 | compiler->cache_argw = argw; |
| 872 | |
| 873 | return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(TMP_REG3)); |
| 874 | } |
| 875 | |
| 876 | /* Get the indexed version instead of the normal one. */ |
| 877 | inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK]; |
| 878 | SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ))); |
| 879 | FAIL_IF(load_immediate(compiler, tmp_r, argw)); |
| 880 | return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(tmp_r)); |
| 881 | } |
| 882 | |
| 883 | static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags, |
| 884 | int dst, sljit_w dstw, |
| 885 | int src1, sljit_w src1w, |
| 886 | int src2, sljit_w src2w) |
| 887 | { |
| 888 | /* arg1 goes to TMP_REG1 or src reg |
| 889 | arg2 goes to TMP_REG2, imm or src reg |
| 890 | TMP_REG3 can be used for caching |
| 891 | result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */ |
| 892 | int dst_r; |
| 893 | int src1_r; |
| 894 | int src2_r; |
| 895 | int sugg_src2_r = TMP_REG2; |
| 896 | int flags = inp_flags & (ALT_FORM1 | ALT_FORM2 | ALT_FORM3 | ALT_FORM4 | ALT_FORM5 | ALT_SIGN_EXT | ALT_SET_FLAGS); |
| 897 | |
| 898 | compiler->cache_arg = 0; |
| 899 | compiler->cache_argw = 0; |
| 900 | |
| 901 | /* Destination check. */ |
| 902 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= ZERO_REG) { |
| 903 | dst_r = dst; |
| 904 | flags |= REG_DEST; |
| 905 | if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) |
| 906 | sugg_src2_r = dst_r; |
| 907 | } |
| 908 | else if (dst == SLJIT_UNUSED) { |
| 909 | if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM)) |
| 910 | return SLJIT_SUCCESS; |
| 911 | dst_r = TMP_REG2; |
| 912 | } |
| 913 | else { |
| 914 | SLJIT_ASSERT(dst & SLJIT_MEM); |
| 915 | if (getput_arg_fast(compiler, inp_flags | ARG_TEST, TMP_REG2, dst, dstw)) { |
| 916 | flags |= FAST_DEST; |
| 917 | dst_r = TMP_REG2; |
| 918 | } |
| 919 | else { |
| 920 | flags |= SLOW_DEST; |
| 921 | dst_r = 0; |
| 922 | } |
| 923 | } |
| 924 | |
| 925 | /* Source 1. */ |
| 926 | if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= ZERO_REG) { |
| 927 | src1_r = src1; |
| 928 | flags |= REG1_SOURCE; |
| 929 | } |
| 930 | else if (src1 & SLJIT_IMM) { |
| 931 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 932 | if ((inp_flags & 0x3) == INT_DATA) { |
| 933 | if (inp_flags & SIGNED_DATA) |
| 934 | src1w = (signed int)src1w; |
| 935 | else |
| 936 | src1w = (unsigned int)src1w; |
| 937 | } |
| 938 | #endif |
| 939 | FAIL_IF(load_immediate(compiler, TMP_REG1, src1w)); |
| 940 | src1_r = TMP_REG1; |
| 941 | } |
| 942 | else if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w)) { |
| 943 | FAIL_IF(compiler->error); |
| 944 | src1_r = TMP_REG1; |
| 945 | } |
| 946 | else |
| 947 | src1_r = 0; |
| 948 | |
| 949 | /* Source 2. */ |
| 950 | if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= ZERO_REG) { |
| 951 | src2_r = src2; |
| 952 | flags |= REG2_SOURCE; |
| 953 | if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) |
| 954 | dst_r = src2_r; |
| 955 | } |
| 956 | else if (src2 & SLJIT_IMM) { |
| 957 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 958 | if ((inp_flags & 0x3) == INT_DATA) { |
| 959 | if (inp_flags & SIGNED_DATA) |
| 960 | src2w = (signed int)src2w; |
| 961 | else |
| 962 | src2w = (unsigned int)src2w; |
| 963 | } |
| 964 | #endif |
| 965 | FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w)); |
| 966 | src2_r = sugg_src2_r; |
| 967 | } |
| 968 | else if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w)) { |
| 969 | FAIL_IF(compiler->error); |
| 970 | src2_r = sugg_src2_r; |
| 971 | } |
| 972 | else |
| 973 | src2_r = 0; |
| 974 | |
| 975 | /* src1_r, src2_r and dst_r can be zero (=unprocessed). |
| 976 | All arguments are complex addressing modes, and it is a binary operator. */ |
| 977 | if (src1_r == 0 && src2_r == 0 && dst_r == 0) { |
| 978 | if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { |
| 979 | FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w)); |
| 980 | FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw)); |
| 981 | } |
| 982 | else { |
| 983 | FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w)); |
| 984 | FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw)); |
| 985 | } |
| 986 | src1_r = TMP_REG1; |
| 987 | src2_r = TMP_REG2; |
| 988 | } |
| 989 | else if (src1_r == 0 && src2_r == 0) { |
| 990 | FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w)); |
| 991 | src1_r = TMP_REG1; |
| 992 | } |
| 993 | else if (src1_r == 0 && dst_r == 0) { |
| 994 | FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw)); |
| 995 | src1_r = TMP_REG1; |
| 996 | } |
| 997 | else if (src2_r == 0 && dst_r == 0) { |
| 998 | FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw)); |
| 999 | src2_r = sugg_src2_r; |
| 1000 | } |
| 1001 | |
| 1002 | if (dst_r == 0) |
| 1003 | dst_r = TMP_REG2; |
| 1004 | |
| 1005 | if (src1_r == 0) { |
| 1006 | FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, 0, 0)); |
| 1007 | src1_r = TMP_REG1; |
| 1008 | } |
| 1009 | |
| 1010 | if (src2_r == 0) { |
| 1011 | FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, 0, 0)); |
| 1012 | src2_r = sugg_src2_r; |
| 1013 | } |
| 1014 | |
| 1015 | FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r)); |
| 1016 | |
| 1017 | if (flags & (FAST_DEST | SLOW_DEST)) { |
| 1018 | if (flags & FAST_DEST) |
| 1019 | FAIL_IF(getput_arg_fast(compiler, inp_flags, dst_r, dst, dstw)); |
| 1020 | else |
| 1021 | FAIL_IF(getput_arg(compiler, inp_flags, dst_r, dst, dstw, 0, 0)); |
| 1022 | } |
| 1023 | return SLJIT_SUCCESS; |
| 1024 | } |
| 1025 | |
| 1026 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op) |
| 1027 | { |
| 1028 | CHECK_ERROR(); |
| 1029 | check_sljit_emit_op0(compiler, op); |
| 1030 | |
| 1031 | op = GET_OPCODE(op); |
| 1032 | switch (op) { |
| 1033 | case SLJIT_BREAKPOINT: |
| 1034 | case SLJIT_NOP: |
| 1035 | return push_inst(compiler, NOP); |
| 1036 | break; |
| 1037 | } |
| 1038 | |
| 1039 | return SLJIT_SUCCESS; |
| 1040 | } |
| 1041 | |
| 1042 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op, |
| 1043 | int dst, sljit_w dstw, |
| 1044 | int src, sljit_w srcw) |
| 1045 | { |
| 1046 | int inp_flags = GET_FLAGS(op) ? ALT_SET_FLAGS : 0; |
| 1047 | |
| 1048 | CHECK_ERROR(); |
| 1049 | check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw); |
| 1050 | |
| 1051 | if ((src & SLJIT_IMM) && srcw == 0) |
| 1052 | src = ZERO_REG; |
| 1053 | |
| 1054 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 1055 | if (op & SLJIT_INT_OP) { |
| 1056 | inp_flags |= INT_DATA | SIGNED_DATA; |
| 1057 | if (src & SLJIT_IMM) |
| 1058 | srcw = (int)srcw; |
| 1059 | } |
| 1060 | #endif |
| 1061 | if (op & SLJIT_SET_O) |
| 1062 | FAIL_IF(push_inst(compiler, MTXER | S(ZERO_REG))); |
| 1063 | |
| 1064 | switch (GET_OPCODE(op)) { |
| 1065 | case SLJIT_MOV: |
| 1066 | return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw); |
| 1067 | |
| 1068 | case SLJIT_MOV_UI: |
| 1069 | return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw); |
| 1070 | |
| 1071 | case SLJIT_MOV_SI: |
| 1072 | return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw); |
| 1073 | |
| 1074 | case SLJIT_MOV_UB: |
| 1075 | return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw); |
| 1076 | |
| 1077 | case SLJIT_MOV_SB: |
| 1078 | 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); |
| 1079 | |
| 1080 | case SLJIT_MOV_UH: |
| 1081 | return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw); |
| 1082 | |
| 1083 | case SLJIT_MOV_SH: |
| 1084 | 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); |
| 1085 | |
| 1086 | case SLJIT_MOVU: |
| 1087 | return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); |
| 1088 | |
| 1089 | case SLJIT_MOVU_UI: |
| 1090 | return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); |
| 1091 | |
| 1092 | case SLJIT_MOVU_SI: |
| 1093 | return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); |
| 1094 | |
| 1095 | case SLJIT_MOVU_UB: |
| 1096 | 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); |
| 1097 | |
| 1098 | case SLJIT_MOVU_SB: |
| 1099 | 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); |
| 1100 | |
| 1101 | case SLJIT_MOVU_UH: |
| 1102 | 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); |
| 1103 | |
| 1104 | case SLJIT_MOVU_SH: |
| 1105 | 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); |
| 1106 | |
| 1107 | case SLJIT_NOT: |
| 1108 | return emit_op(compiler, SLJIT_NOT, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw); |
| 1109 | |
| 1110 | case SLJIT_NEG: |
| 1111 | return emit_op(compiler, SLJIT_NEG, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw); |
| 1112 | |
| 1113 | case SLJIT_CLZ: |
| 1114 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 1115 | return emit_op(compiler, SLJIT_CLZ, inp_flags | (!(op & SLJIT_INT_OP) ? 0 : ALT_FORM1), dst, dstw, TMP_REG1, 0, src, srcw); |
| 1116 | #else |
| 1117 | return emit_op(compiler, SLJIT_CLZ, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw); |
| 1118 | #endif |
| 1119 | } |
| 1120 | |
| 1121 | return SLJIT_SUCCESS; |
| 1122 | } |
| 1123 | |
| 1124 | #define TEST_SL_IMM(src, srcw) \ |
| 1125 | (((src) & SLJIT_IMM) && (srcw) <= SIMM_MAX && (srcw) >= SIMM_MIN) |
| 1126 | |
| 1127 | #define TEST_UL_IMM(src, srcw) \ |
| 1128 | (((src) & SLJIT_IMM) && !((srcw) & ~0xffff)) |
| 1129 | |
| 1130 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 1131 | #define TEST_SH_IMM(src, srcw) \ |
| 1132 | (((src) & SLJIT_IMM) && !((srcw) & 0xffff) && (srcw) <= SLJIT_W(0x7fffffff) && (srcw) >= SLJIT_W(-0x80000000)) |
| 1133 | #else |
| 1134 | #define TEST_SH_IMM(src, srcw) \ |
| 1135 | (((src) & SLJIT_IMM) && !((srcw) & 0xffff)) |
| 1136 | #endif |
| 1137 | |
| 1138 | #define TEST_UH_IMM(src, srcw) \ |
| 1139 | (((src) & SLJIT_IMM) && !((srcw) & ~0xffff0000)) |
| 1140 | |
| 1141 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 1142 | #define TEST_UI_IMM(src, srcw) \ |
| 1143 | (((src) & SLJIT_IMM) && !((srcw) & ~0xffffffff)) |
| 1144 | #else |
| 1145 | #define TEST_UI_IMM(src, srcw) \ |
| 1146 | ((src) & SLJIT_IMM) |
| 1147 | #endif |
| 1148 | |
| 1149 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op, |
| 1150 | int dst, sljit_w dstw, |
| 1151 | int src1, sljit_w src1w, |
| 1152 | int src2, sljit_w src2w) |
| 1153 | { |
| 1154 | int inp_flags = GET_FLAGS(op) ? ALT_SET_FLAGS : 0; |
| 1155 | |
| 1156 | CHECK_ERROR(); |
| 1157 | check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w); |
| 1158 | |
| 1159 | if ((src1 & SLJIT_IMM) && src1w == 0) |
| 1160 | src1 = ZERO_REG; |
| 1161 | if ((src2 & SLJIT_IMM) && src2w == 0) |
| 1162 | src2 = ZERO_REG; |
| 1163 | |
| 1164 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 1165 | if (op & SLJIT_INT_OP) { |
| 1166 | inp_flags |= INT_DATA | SIGNED_DATA; |
| 1167 | if (src1 & SLJIT_IMM) |
| 1168 | src1w = (src1w << 32) >> 32; |
| 1169 | if (src2 & SLJIT_IMM) |
| 1170 | src2w = (src2w << 32) >> 32; |
| 1171 | if (GET_FLAGS(op)) |
| 1172 | inp_flags |= ALT_SIGN_EXT; |
| 1173 | } |
| 1174 | #endif |
| 1175 | if (op & SLJIT_SET_O) |
| 1176 | FAIL_IF(push_inst(compiler, MTXER | S(ZERO_REG))); |
| 1177 | |
| 1178 | switch (GET_OPCODE(op)) { |
| 1179 | case SLJIT_ADD: |
| 1180 | if (!GET_FLAGS(op)) { |
| 1181 | if (TEST_SL_IMM(src2, src2w)) { |
| 1182 | compiler->imm = src2w & 0xffff; |
| 1183 | return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1184 | } |
| 1185 | if (TEST_SL_IMM(src1, src1w)) { |
| 1186 | compiler->imm = src1w & 0xffff; |
| 1187 | return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0); |
| 1188 | } |
| 1189 | if (TEST_SH_IMM(src2, src2w)) { |
| 1190 | compiler->imm = (src2w >> 16) & 0xffff; |
| 1191 | return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1192 | } |
| 1193 | if (TEST_SH_IMM(src1, src1w)) { |
| 1194 | compiler->imm = (src1w >> 16) & 0xffff; |
| 1195 | return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0); |
| 1196 | } |
| 1197 | } |
| 1198 | if (!(GET_FLAGS(op) & (SLJIT_SET_E | SLJIT_SET_O))) { |
| 1199 | if (TEST_SL_IMM(src2, src2w)) { |
| 1200 | compiler->imm = src2w & 0xffff; |
| 1201 | return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1202 | } |
| 1203 | if (TEST_SL_IMM(src1, src1w)) { |
| 1204 | compiler->imm = src1w & 0xffff; |
| 1205 | return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM3, dst, dstw, src2, src2w, TMP_REG2, 0); |
| 1206 | } |
| 1207 | } |
| 1208 | return emit_op(compiler, SLJIT_ADD, inp_flags, dst, dstw, src1, src1w, src2, src2w); |
| 1209 | |
| 1210 | case SLJIT_ADDC: |
| 1211 | return emit_op(compiler, SLJIT_ADDC, inp_flags | (!(op & SLJIT_KEEP_FLAGS) ? 0 : ALT_FORM1), dst, dstw, src1, src1w, src2, src2w); |
| 1212 | |
| 1213 | case SLJIT_SUB: |
| 1214 | if (!GET_FLAGS(op)) { |
| 1215 | if (TEST_SL_IMM(src2, -src2w)) { |
| 1216 | compiler->imm = (-src2w) & 0xffff; |
| 1217 | return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1218 | } |
| 1219 | if (TEST_SL_IMM(src1, src1w)) { |
| 1220 | compiler->imm = src1w & 0xffff; |
| 1221 | return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0); |
| 1222 | } |
| 1223 | if (TEST_SH_IMM(src2, -src2w)) { |
| 1224 | compiler->imm = ((-src2w) >> 16) & 0xffff; |
| 1225 | return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1226 | } |
| 1227 | } |
| 1228 | if (dst == SLJIT_UNUSED && !(GET_FLAGS(op) & ~(SLJIT_SET_E | SLJIT_SET_S))) { |
| 1229 | /* We know ALT_SIGN_EXT is set if it is an SLJIT_INT_OP on 64 bit systems. */ |
| 1230 | if (TEST_SL_IMM(src2, src2w)) { |
| 1231 | compiler->imm = src2w & 0xffff; |
| 1232 | return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1233 | } |
| 1234 | if (GET_FLAGS(op) == SLJIT_SET_E && TEST_SL_IMM(src1, src1w)) { |
| 1235 | compiler->imm = src1w & 0xffff; |
| 1236 | return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0); |
| 1237 | } |
| 1238 | } |
| 1239 | if (dst == SLJIT_UNUSED && GET_FLAGS(op) == SLJIT_SET_U) { |
| 1240 | /* We know ALT_SIGN_EXT is set if it is an SLJIT_INT_OP on 64 bit systems. */ |
| 1241 | if (TEST_UL_IMM(src2, src2w)) { |
| 1242 | compiler->imm = src2w & 0xffff; |
| 1243 | return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1244 | } |
| 1245 | return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM4, dst, dstw, src1, src1w, src2, src2w); |
| 1246 | } |
| 1247 | if (!(op & (SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_O))) { |
| 1248 | if (TEST_SL_IMM(src2, -src2w)) { |
| 1249 | compiler->imm = (-src2w) & 0xffff; |
| 1250 | return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1251 | } |
| 1252 | } |
| 1253 | /* We know ALT_SIGN_EXT is set if it is an SLJIT_INT_OP on 64 bit systems. */ |
| 1254 | return emit_op(compiler, SLJIT_SUB, inp_flags | (!(op & SLJIT_SET_U) ? 0 : ALT_FORM5), dst, dstw, src1, src1w, src2, src2w); |
| 1255 | |
| 1256 | case SLJIT_SUBC: |
| 1257 | return emit_op(compiler, SLJIT_SUBC, inp_flags | (!(op & SLJIT_KEEP_FLAGS) ? 0 : ALT_FORM1), dst, dstw, src1, src1w, src2, src2w); |
| 1258 | |
| 1259 | case SLJIT_MUL: |
| 1260 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 1261 | if (op & SLJIT_INT_OP) |
| 1262 | inp_flags |= ALT_FORM2; |
| 1263 | #endif |
| 1264 | if (!GET_FLAGS(op)) { |
| 1265 | if (TEST_SL_IMM(src2, src2w)) { |
| 1266 | compiler->imm = src2w & 0xffff; |
| 1267 | return emit_op(compiler, SLJIT_MUL, inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1268 | } |
| 1269 | if (TEST_SL_IMM(src1, src1w)) { |
| 1270 | compiler->imm = src1w & 0xffff; |
| 1271 | return emit_op(compiler, SLJIT_MUL, inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0); |
| 1272 | } |
| 1273 | } |
| 1274 | return emit_op(compiler, SLJIT_MUL, inp_flags, dst, dstw, src1, src1w, src2, src2w); |
| 1275 | |
| 1276 | case SLJIT_AND: |
| 1277 | case SLJIT_OR: |
| 1278 | case SLJIT_XOR: |
| 1279 | /* Commutative unsigned operations. */ |
| 1280 | if (!GET_FLAGS(op) || GET_OPCODE(op) == SLJIT_AND) { |
| 1281 | if (TEST_UL_IMM(src2, src2w)) { |
| 1282 | compiler->imm = src2w; |
| 1283 | return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1284 | } |
| 1285 | if (TEST_UL_IMM(src1, src1w)) { |
| 1286 | compiler->imm = src1w; |
| 1287 | return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0); |
| 1288 | } |
| 1289 | if (TEST_UH_IMM(src2, src2w)) { |
| 1290 | compiler->imm = (src2w >> 16) & 0xffff; |
| 1291 | return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1292 | } |
| 1293 | if (TEST_UH_IMM(src1, src1w)) { |
| 1294 | compiler->imm = (src1w >> 16) & 0xffff; |
| 1295 | return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0); |
| 1296 | } |
| 1297 | } |
| 1298 | if (!GET_FLAGS(op) && GET_OPCODE(op) != SLJIT_AND) { |
| 1299 | if (TEST_UI_IMM(src2, src2w)) { |
| 1300 | compiler->imm = src2w; |
| 1301 | return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1302 | } |
| 1303 | if (TEST_UI_IMM(src1, src1w)) { |
| 1304 | compiler->imm = src1w; |
| 1305 | return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM3, dst, dstw, src2, src2w, TMP_REG2, 0); |
| 1306 | } |
| 1307 | } |
| 1308 | return emit_op(compiler, GET_OPCODE(op), inp_flags, dst, dstw, src1, src1w, src2, src2w); |
| 1309 | |
| 1310 | case SLJIT_SHL: |
| 1311 | case SLJIT_LSHR: |
| 1312 | case SLJIT_ASHR: |
| 1313 | #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) |
| 1314 | if (op & SLJIT_INT_OP) |
| 1315 | inp_flags |= ALT_FORM2; |
| 1316 | #endif |
| 1317 | if (src2 & SLJIT_IMM) { |
| 1318 | compiler->imm = src2w; |
| 1319 | return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0); |
| 1320 | } |
| 1321 | return emit_op(compiler, GET_OPCODE(op), inp_flags, dst, dstw, src1, src1w, src2, src2w); |
| 1322 | } |
| 1323 | |
| 1324 | return SLJIT_SUCCESS; |
| 1325 | } |
| 1326 | |
| 1327 | /* --------------------------------------------------------------------- */ |
| 1328 | /* Floating point operators */ |
| 1329 | /* --------------------------------------------------------------------- */ |
| 1330 | |
| 1331 | SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void) |
| 1332 | { |
| 1333 | /* Always available. */ |
| 1334 | return 1; |
| 1335 | } |
| 1336 | |
| 1337 | static int emit_fpu_data_transfer(struct sljit_compiler *compiler, int fpu_reg, int load, int arg, sljit_w argw) |
| 1338 | { |
| 1339 | SLJIT_ASSERT(arg & SLJIT_MEM); |
| 1340 | |
| 1341 | /* Fast loads and stores. */ |
| 1342 | if (!(arg & 0xf0)) { |
| 1343 | /* Both for (arg & 0xf) == SLJIT_UNUSED and (arg & 0xf) != SLJIT_UNUSED. */ |
| 1344 | if (argw <= SIMM_MAX && argw >= SIMM_MIN) |
| 1345 | return push_inst(compiler, (load ? LFD : STFD) | FD(fpu_reg) | A(arg & 0xf) | IMM(argw)); |
| 1346 | } |
| 1347 | |
| 1348 | if (arg & 0xf0) { |
| 1349 | argw &= 0x3; |
| 1350 | if (argw) { |
| 1351 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 1352 | FAIL_IF(push_inst(compiler, RLWINM | S((arg >> 4) & 0xf) | A(TMP_REG2) | (argw << 11) | ((31 - argw) << 1))); |
| 1353 | #else |
| 1354 | FAIL_IF(push_inst(compiler, RLDI(TMP_REG2, (arg >> 4) & 0xf, argw, 63 - argw, 1))); |
| 1355 | #endif |
| 1356 | return push_inst(compiler, (load ? LFDX : STFDX) | FD(fpu_reg) | A(arg & 0xf) | B(TMP_REG2)); |
| 1357 | } |
| 1358 | return push_inst(compiler, (load ? LFDX : STFDX) | FD(fpu_reg) | A(arg & 0xf) | B((arg >> 4) & 0xf)); |
| 1359 | } |
| 1360 | |
| 1361 | /* Use cache. */ |
| 1362 | if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) |
| 1363 | return push_inst(compiler, (load ? LFD : STFD) | FD(fpu_reg) | A(TMP_REG3) | IMM(argw - compiler->cache_argw)); |
| 1364 | |
| 1365 | /* Put value to cache. */ |
| 1366 | compiler->cache_arg = arg; |
| 1367 | compiler->cache_argw = argw; |
| 1368 | |
| 1369 | FAIL_IF(load_immediate(compiler, TMP_REG3, argw)); |
| 1370 | if (!(arg & 0xf)) |
| 1371 | return push_inst(compiler, (load ? LFDX : STFDX) | FD(fpu_reg) | A(0) | B(TMP_REG3)); |
| 1372 | return push_inst(compiler, (load ? LFDUX : STFDUX) | FD(fpu_reg) | A(TMP_REG3) | B(arg & 0xf)); |
| 1373 | } |
| 1374 | |
| 1375 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op, |
| 1376 | int dst, sljit_w dstw, |
| 1377 | int src, sljit_w srcw) |
| 1378 | { |
| 1379 | int dst_fr; |
| 1380 | |
| 1381 | CHECK_ERROR(); |
| 1382 | check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw); |
| 1383 | |
| 1384 | compiler->cache_arg = 0; |
| 1385 | compiler->cache_argw = 0; |
| 1386 | |
| 1387 | if (GET_OPCODE(op) == SLJIT_FCMP) { |
| 1388 | if (dst > SLJIT_FLOAT_REG4) { |
| 1389 | FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, dst, dstw)); |
| 1390 | dst = TMP_FREG1; |
| 1391 | } |
| 1392 | if (src > SLJIT_FLOAT_REG4) { |
| 1393 | FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src, srcw)); |
| 1394 | src = TMP_FREG2; |
| 1395 | } |
| 1396 | return push_inst(compiler, FCMPU | CRD(4) | FA(dst) | FB(src)); |
| 1397 | } |
| 1398 | |
| 1399 | dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst; |
| 1400 | |
| 1401 | if (src > SLJIT_FLOAT_REG4) { |
| 1402 | FAIL_IF(emit_fpu_data_transfer(compiler, dst_fr, 1, src, srcw)); |
| 1403 | src = dst_fr; |
| 1404 | } |
| 1405 | |
| 1406 | switch (op) { |
| 1407 | case SLJIT_FMOV: |
| 1408 | if (src != dst_fr && dst_fr != TMP_FREG1) |
| 1409 | FAIL_IF(push_inst(compiler, FMR | FD(dst_fr) | FB(src))); |
| 1410 | break; |
| 1411 | case SLJIT_FNEG: |
| 1412 | FAIL_IF(push_inst(compiler, FNEG | FD(dst_fr) | FB(src))); |
| 1413 | break; |
| 1414 | case SLJIT_FABS: |
| 1415 | FAIL_IF(push_inst(compiler, FABS | FD(dst_fr) | FB(src))); |
| 1416 | break; |
| 1417 | } |
| 1418 | |
| 1419 | if (dst_fr == TMP_FREG1) |
| 1420 | FAIL_IF(emit_fpu_data_transfer(compiler, src, 0, dst, dstw)); |
| 1421 | |
| 1422 | return SLJIT_SUCCESS; |
| 1423 | } |
| 1424 | |
| 1425 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op, |
| 1426 | int dst, sljit_w dstw, |
| 1427 | int src1, sljit_w src1w, |
| 1428 | int src2, sljit_w src2w) |
| 1429 | { |
| 1430 | int dst_fr; |
| 1431 | |
| 1432 | CHECK_ERROR(); |
| 1433 | check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w); |
| 1434 | |
| 1435 | compiler->cache_arg = 0; |
| 1436 | compiler->cache_argw = 0; |
| 1437 | |
| 1438 | dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst; |
| 1439 | |
| 1440 | if (src2 > SLJIT_FLOAT_REG4) { |
| 1441 | FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src2, src2w)); |
| 1442 | src2 = TMP_FREG2; |
| 1443 | } |
| 1444 | |
| 1445 | if (src1 > SLJIT_FLOAT_REG4) { |
| 1446 | FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, src1, src1w)); |
| 1447 | src1 = TMP_FREG1; |
| 1448 | } |
| 1449 | |
| 1450 | switch (op) { |
| 1451 | case SLJIT_FADD: |
| 1452 | FAIL_IF(push_inst(compiler, FADD | FD(dst_fr) | FA(src1) | FB(src2))); |
| 1453 | break; |
| 1454 | |
| 1455 | case SLJIT_FSUB: |
| 1456 | FAIL_IF(push_inst(compiler, FSUB | FD(dst_fr) | FA(src1) | FB(src2))); |
| 1457 | break; |
| 1458 | |
| 1459 | case SLJIT_FMUL: |
| 1460 | FAIL_IF(push_inst(compiler, FMUL | FD(dst_fr) | FA(src1) | FC(src2) /* FMUL use FC as src2 */)); |
| 1461 | break; |
| 1462 | |
| 1463 | case SLJIT_FDIV: |
| 1464 | FAIL_IF(push_inst(compiler, FDIV | FD(dst_fr) | FA(src1) | FB(src2))); |
| 1465 | break; |
| 1466 | } |
| 1467 | |
| 1468 | if (dst_fr == TMP_FREG1) |
| 1469 | FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 0, dst, dstw)); |
| 1470 | |
| 1471 | return SLJIT_SUCCESS; |
| 1472 | } |
| 1473 | |
| 1474 | /* --------------------------------------------------------------------- */ |
| 1475 | /* Other instructions */ |
| 1476 | /* --------------------------------------------------------------------- */ |
| 1477 | |
| 1478 | 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) |
| 1479 | { |
| 1480 | CHECK_ERROR(); |
| 1481 | check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, generals, local_size); |
| 1482 | |
| 1483 | compiler->temporaries = temporaries; |
| 1484 | compiler->generals = generals; |
| 1485 | |
| 1486 | compiler->has_locals = local_size > 0; |
| 1487 | #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) |
| 1488 | compiler->local_size = (2 + generals + 2) * sizeof(sljit_w) + local_size; |
| 1489 | #else |
| 1490 | compiler->local_size = (2 + generals + 7 + 8) * sizeof(sljit_w) + local_size; |
| 1491 | #endif |
| 1492 | compiler->local_size = (compiler->local_size + 15) & ~0xf; |
| 1493 | |
| 1494 | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) |
| 1495 | return push_inst(compiler, MFLR | D(dst)); |
| 1496 | else if (dst & SLJIT_MEM) { |
| 1497 | FAIL_IF(push_inst(compiler, MFLR | D(TMP_REG2))); |
| 1498 | return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0); |
| 1499 | } |
| 1500 | |
| 1501 | return SLJIT_SUCCESS; |
| 1502 | } |
| 1503 | |
| 1504 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw) |
| 1505 | { |
| 1506 | CHECK_ERROR(); |
| 1507 | check_sljit_emit_fast_return(compiler, src, srcw); |
| 1508 | |
| 1509 | if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS) |
| 1510 | FAIL_IF(push_inst(compiler, MTLR | S(src))); |
| 1511 | else { |
| 1512 | if (src & SLJIT_MEM) |
| 1513 | FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw)); |
| 1514 | else if (src & SLJIT_IMM) |
| 1515 | FAIL_IF(load_immediate(compiler, TMP_REG2, srcw)); |
| 1516 | FAIL_IF(push_inst(compiler, MTLR | S(TMP_REG2))); |
| 1517 | } |
| 1518 | return push_inst(compiler, BLR); |
| 1519 | } |
| 1520 | |
| 1521 | /* --------------------------------------------------------------------- */ |
| 1522 | /* Conditional instructions */ |
| 1523 | /* --------------------------------------------------------------------- */ |
| 1524 | |
| 1525 | SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler) |
| 1526 | { |
| 1527 | struct sljit_label *label; |
| 1528 | |
| 1529 | CHECK_ERROR_PTR(); |
| 1530 | check_sljit_emit_label(compiler); |
| 1531 | |
| 1532 | if (compiler->last_label && compiler->last_label->size == compiler->size) |
| 1533 | return compiler->last_label; |
| 1534 | |
| 1535 | label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label)); |
| 1536 | PTR_FAIL_IF(!label); |
| 1537 | set_label(label, compiler); |
| 1538 | return label; |
| 1539 | } |
| 1540 | |
| 1541 | static sljit_ins get_bo_bi_flags(struct sljit_compiler *compiler, int type) |
| 1542 | { |
| 1543 | switch (type) { |
| 1544 | case SLJIT_C_EQUAL: |
| 1545 | return (12 << 21) | (2 << 16); |
| 1546 | |
| 1547 | case SLJIT_C_NOT_EQUAL: |
| 1548 | return (4 << 21) | (2 << 16); |
| 1549 | |
| 1550 | case SLJIT_C_LESS: |
| 1551 | case SLJIT_C_FLOAT_LESS: |
| 1552 | return (12 << 21) | ((4 + 0) << 16); |
| 1553 | |
| 1554 | case SLJIT_C_GREATER_EQUAL: |
| 1555 | case SLJIT_C_FLOAT_GREATER_EQUAL: |
| 1556 | return (4 << 21) | ((4 + 0) << 16); |
| 1557 | |
| 1558 | case SLJIT_C_GREATER: |
| 1559 | case SLJIT_C_FLOAT_GREATER: |
| 1560 | return (12 << 21) | ((4 + 1) << 16); |
| 1561 | |
| 1562 | case SLJIT_C_LESS_EQUAL: |
| 1563 | case SLJIT_C_FLOAT_LESS_EQUAL: |
| 1564 | return (4 << 21) | ((4 + 1) << 16); |
| 1565 | |
| 1566 | case SLJIT_C_SIG_LESS: |
| 1567 | return (12 << 21) | (0 << 16); |
| 1568 | |
| 1569 | case SLJIT_C_SIG_GREATER_EQUAL: |
| 1570 | return (4 << 21) | (0 << 16); |
| 1571 | |
| 1572 | case SLJIT_C_SIG_GREATER: |
| 1573 | return (12 << 21) | (1 << 16); |
| 1574 | |
| 1575 | case SLJIT_C_SIG_LESS_EQUAL: |
| 1576 | return (4 << 21) | (1 << 16); |
| 1577 | |
| 1578 | case SLJIT_C_OVERFLOW: |
| 1579 | case SLJIT_C_MUL_OVERFLOW: |
| 1580 | return (12 << 21) | (3 << 16); |
| 1581 | |
| 1582 | case SLJIT_C_NOT_OVERFLOW: |
| 1583 | case SLJIT_C_MUL_NOT_OVERFLOW: |
| 1584 | return (4 << 21) | (3 << 16); |
| 1585 | |
| 1586 | case SLJIT_C_FLOAT_EQUAL: |
| 1587 | return (12 << 21) | ((4 + 2) << 16); |
| 1588 | |
| 1589 | case SLJIT_C_FLOAT_NOT_EQUAL: |
| 1590 | return (4 << 21) | ((4 + 2) << 16); |
| 1591 | |
| 1592 | case SLJIT_C_FLOAT_NAN: |
| 1593 | return (12 << 21) | ((4 + 3) << 16); |
| 1594 | |
| 1595 | case SLJIT_C_FLOAT_NOT_NAN: |
| 1596 | return (4 << 21) | ((4 + 3) << 16); |
| 1597 | |
| 1598 | default: |
| 1599 | SLJIT_ASSERT(type >= SLJIT_JUMP && type <= SLJIT_CALL3); |
| 1600 | return (20 << 21); |
| 1601 | } |
| 1602 | } |
| 1603 | |
| 1604 | SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type) |
| 1605 | { |
| 1606 | struct sljit_jump *jump; |
| 1607 | sljit_ins bo_bi_flags; |
| 1608 | |
| 1609 | CHECK_ERROR_PTR(); |
| 1610 | check_sljit_emit_jump(compiler, type); |
| 1611 | |
| 1612 | bo_bi_flags = get_bo_bi_flags(compiler, type & 0xff); |
| 1613 | if (!bo_bi_flags) |
| 1614 | return NULL; |
| 1615 | |
| 1616 | jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); |
| 1617 | PTR_FAIL_IF(!jump); |
| 1618 | set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); |
| 1619 | type &= 0xff; |
| 1620 | |
| 1621 | /* In PPC, we don't need to touch the arguments. */ |
| 1622 | if (type >= SLJIT_JUMP) |
| 1623 | jump->flags |= UNCOND_B; |
| 1624 | |
| 1625 | PTR_FAIL_IF(emit_const(compiler, TMP_REG1, 0)); |
| 1626 | PTR_FAIL_IF(push_inst(compiler, MTCTR | S(TMP_REG1))); |
| 1627 | jump->addr = compiler->size; |
| 1628 | PTR_FAIL_IF(push_inst(compiler, BCCTR | bo_bi_flags | (type >= SLJIT_FAST_CALL ? 1 : 0))); |
| 1629 | return jump; |
| 1630 | } |
| 1631 | |
| 1632 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw) |
| 1633 | { |
| 1634 | sljit_ins bo_bi_flags; |
| 1635 | struct sljit_jump *jump = NULL; |
| 1636 | int src_r; |
| 1637 | |
| 1638 | CHECK_ERROR(); |
| 1639 | check_sljit_emit_ijump(compiler, type, src, srcw); |
| 1640 | |
| 1641 | bo_bi_flags = get_bo_bi_flags(compiler, type); |
| 1642 | FAIL_IF(!bo_bi_flags); |
| 1643 | |
| 1644 | if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS) |
| 1645 | src_r = src; |
| 1646 | else if (src & SLJIT_IMM) { |
| 1647 | jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); |
| 1648 | FAIL_IF(!jump); |
| 1649 | set_jump(jump, compiler, JUMP_ADDR | UNCOND_B); |
| 1650 | jump->u.target = srcw; |
| 1651 | |
| 1652 | FAIL_IF(emit_const(compiler, TMP_REG2, 0)); |
| 1653 | src_r = TMP_REG2; |
| 1654 | } |
| 1655 | else { |
| 1656 | FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw)); |
| 1657 | src_r = TMP_REG2; |
| 1658 | } |
| 1659 | |
| 1660 | FAIL_IF(push_inst(compiler, MTCTR | S(src_r))); |
| 1661 | if (jump) |
| 1662 | jump->addr = compiler->size; |
| 1663 | return push_inst(compiler, BCCTR | bo_bi_flags | (type >= SLJIT_FAST_CALL ? 1 : 0)); |
| 1664 | } |
| 1665 | |
| 1666 | /* Get a bit from CR, all other bits are zeroed. */ |
| 1667 | #define GET_CR_BIT(bit, dst) \ |
| 1668 | FAIL_IF(push_inst(compiler, MFCR | D(dst))); \ |
| 1669 | FAIL_IF(push_inst(compiler, RLWINM | S(dst) | A(dst) | ((1 + (bit)) << 11) | (31 << 6) | (31 << 1))); |
| 1670 | |
| 1671 | #define INVERT_BIT(dst) \ |
| 1672 | FAIL_IF(push_inst(compiler, XORI | S(dst) | A(dst) | 0x1)); |
| 1673 | |
| 1674 | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type) |
| 1675 | { |
| 1676 | int reg; |
| 1677 | |
| 1678 | CHECK_ERROR(); |
| 1679 | check_sljit_emit_cond_value(compiler, op, dst, dstw, type); |
| 1680 | |
| 1681 | if (dst == SLJIT_UNUSED) |
| 1682 | return SLJIT_SUCCESS; |
| 1683 | |
| 1684 | reg = (op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2; |
| 1685 | |
| 1686 | switch (type) { |
| 1687 | case SLJIT_C_EQUAL: |
| 1688 | GET_CR_BIT(2, reg); |
| 1689 | break; |
| 1690 | |
| 1691 | case SLJIT_C_NOT_EQUAL: |
| 1692 | GET_CR_BIT(2, reg); |
| 1693 | INVERT_BIT(reg); |
| 1694 | break; |
| 1695 | |
| 1696 | case SLJIT_C_LESS: |
| 1697 | case SLJIT_C_FLOAT_LESS: |
| 1698 | GET_CR_BIT(4 + 0, reg); |
| 1699 | break; |
| 1700 | |
| 1701 | case SLJIT_C_GREATER_EQUAL: |
| 1702 | case SLJIT_C_FLOAT_GREATER_EQUAL: |
| 1703 | GET_CR_BIT(4 + 0, reg); |
| 1704 | INVERT_BIT(reg); |
| 1705 | break; |
| 1706 | |
| 1707 | case SLJIT_C_GREATER: |
| 1708 | case SLJIT_C_FLOAT_GREATER: |
| 1709 | GET_CR_BIT(4 + 1, reg); |
| 1710 | break; |
| 1711 | |
| 1712 | case SLJIT_C_LESS_EQUAL: |
| 1713 | case SLJIT_C_FLOAT_LESS_EQUAL: |
| 1714 | GET_CR_BIT(4 + 1, reg); |
| 1715 | INVERT_BIT(reg); |
| 1716 | break; |
| 1717 | |
| 1718 | case SLJIT_C_SIG_LESS: |
| 1719 | GET_CR_BIT(0, reg); |
| 1720 | break; |
| 1721 | |
| 1722 | case SLJIT_C_SIG_GREATER_EQUAL: |
| 1723 | GET_CR_BIT(0, reg); |
| 1724 | INVERT_BIT(reg); |
| 1725 | break; |
| 1726 | |
| 1727 | case SLJIT_C_SIG_GREATER: |
| 1728 | GET_CR_BIT(1, reg); |
| 1729 | break; |
| 1730 | |
| 1731 | case SLJIT_C_SIG_LESS_EQUAL: |
| 1732 | GET_CR_BIT(1, reg); |
| 1733 | INVERT_BIT(reg); |
| 1734 | break; |
| 1735 | |
| 1736 | case SLJIT_C_OVERFLOW: |
| 1737 | case SLJIT_C_MUL_OVERFLOW: |
| 1738 | GET_CR_BIT(3, reg); |
| 1739 | break; |
| 1740 | |
| 1741 | case SLJIT_C_NOT_OVERFLOW: |
| 1742 | case SLJIT_C_MUL_NOT_OVERFLOW: |
| 1743 | GET_CR_BIT(3, reg); |
| 1744 | INVERT_BIT(reg); |
| 1745 | break; |
| 1746 | |
| 1747 | case SLJIT_C_FLOAT_EQUAL: |
| 1748 | GET_CR_BIT(4 + 2, reg); |
| 1749 | break; |
| 1750 | |
| 1751 | case SLJIT_C_FLOAT_NOT_EQUAL: |
| 1752 | GET_CR_BIT(4 + 2, reg); |
| 1753 | INVERT_BIT(reg); |
| 1754 | break; |
| 1755 | |
| 1756 | case SLJIT_C_FLOAT_NAN: |
| 1757 | GET_CR_BIT(4 + 3, reg); |
| 1758 | break; |
| 1759 | |
| 1760 | case SLJIT_C_FLOAT_NOT_NAN: |
| 1761 | GET_CR_BIT(4 + 3, reg); |
| 1762 | INVERT_BIT(reg); |
| 1763 | break; |
| 1764 | |
| 1765 | default: |
| 1766 | SLJIT_ASSERT_STOP(); |
| 1767 | break; |
| 1768 | } |
| 1769 | |
| 1770 | if (GET_OPCODE(op) == SLJIT_OR) |
| 1771 | return emit_op(compiler, GET_OPCODE(op), GET_FLAGS(op) ? ALT_SET_FLAGS : 0, dst, dstw, dst, dstw, TMP_REG2, 0); |
| 1772 | |
| 1773 | if (reg == TMP_REG2) |
| 1774 | return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0); |
| 1775 | return SLJIT_SUCCESS; |
| 1776 | } |
| 1777 | |
| 1778 | SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value) |
| 1779 | { |
| 1780 | struct sljit_const *const_; |
| 1781 | int reg; |
| 1782 | |
| 1783 | CHECK_ERROR_PTR(); |
| 1784 | check_sljit_emit_const(compiler, dst, dstw, init_value); |
| 1785 | |
| 1786 | const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const)); |
| 1787 | PTR_FAIL_IF(!const_); |
| 1788 | set_const(const_, compiler); |
| 1789 | |
| 1790 | reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2; |
| 1791 | |
| 1792 | PTR_FAIL_IF(emit_const(compiler, reg, init_value)); |
| 1793 | |
| 1794 | if (dst & SLJIT_MEM) |
| 1795 | PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0)); |
| 1796 | return const_; |
| 1797 | } |