1 /* 2 * Copyright 2011 Christoph Bumiller 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 */ 22 23 #include "codegen/nv50_ir_target_nv50.h" 24 25 namespace nv50_ir { 26 27 Target *getTargetNV50(unsigned int chipset) 28 { 29 return new TargetNV50(chipset); 30 } 31 32 TargetNV50::TargetNV50(unsigned int card) : Target(true, true, false) 33 { 34 chipset = card; 35 36 wposMask = 0; 37 for (unsigned int i = 0; i <= SV_LAST; ++i) 38 sysvalLocation[i] = ~0; 39 40 initOpInfo(); 41 } 42 43 #if 0 44 // BULTINS / LIBRARY FUNCTIONS: 45 46 // TODO 47 static const uint32_t nvc0_builtin_code[] = 48 { 49 }; 50 51 static const uint16_t nvc0_builtin_offsets[NV50_BUILTIN_COUNT] = 52 { 53 }; 54 #endif 55 56 void 57 TargetNV50::getBuiltinCode(const uint32_t **code, uint32_t *size) const 58 { 59 *code = NULL; 60 *size = 0; 61 } 62 63 uint32_t 64 TargetNV50::getBuiltinOffset(int builtin) const 65 { 66 return 0; 67 } 68 69 struct opProperties 70 { 71 operation op; 72 unsigned int mNeg : 4; 73 unsigned int mAbs : 4; 74 unsigned int mNot : 4; 75 unsigned int mSat : 4; 76 unsigned int fConst : 3; 77 unsigned int fShared : 3; 78 unsigned int fAttrib : 3; 79 unsigned int fImm : 3; 80 }; 81 82 static const struct opProperties _initProps[] = 83 { 84 // neg abs not sat c[] s[], a[], imm 85 { OP_ADD, 0x3, 0x0, 0x0, 0x8, 0x2, 0x1, 0x1, 0x2 }, 86 { OP_SUB, 0x3, 0x0, 0x0, 0x8, 0x2, 0x1, 0x1, 0x2 }, 87 { OP_MUL, 0x3, 0x0, 0x0, 0x0, 0x2, 0x1, 0x1, 0x2 }, 88 { OP_MAX, 0x3, 0x3, 0x0, 0x0, 0x2, 0x1, 0x1, 0x0 }, 89 { OP_MIN, 0x3, 0x3, 0x0, 0x0, 0x2, 0x1, 0x1, 0x0 }, 90 { OP_MAD, 0x7, 0x0, 0x0, 0x8, 0x6, 0x1, 0x1, 0x0 }, // special constraint 91 { OP_ABS, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0 }, 92 { OP_NEG, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0 }, 93 { OP_CVT, 0x1, 0x1, 0x0, 0x8, 0x0, 0x1, 0x1, 0x0 }, 94 { OP_AND, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x2 }, 95 { OP_OR, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x2 }, 96 { OP_XOR, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x2 }, 97 { OP_SHL, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2 }, 98 { OP_SHR, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2 }, 99 { OP_SET, 0x3, 0x3, 0x0, 0x0, 0x2, 0x1, 0x1, 0x0 }, 100 { OP_PREEX2, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 }, 101 { OP_PRESIN, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 }, 102 { OP_EX2, 0x0, 0x0, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0 }, 103 { OP_LG2, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 }, 104 { OP_RCP, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 }, 105 { OP_RSQ, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 }, 106 { OP_DFDX, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 }, 107 { OP_DFDY, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 }, 108 }; 109 110 void TargetNV50::initOpInfo() 111 { 112 unsigned int i, j; 113 114 static const uint32_t commutative[(OP_LAST + 31) / 32] = 115 { 116 // ADD, MUL, MAD, FMA, AND, OR, XOR, MAX, MIN, SET_AND, SET_OR, SET_XOR, 117 // SET, SELP, SLCT 118 0x0ce0ca00, 0x0000007e, 0x00000000, 0x00000000 119 }; 120 static const uint32_t shortForm[(OP_LAST + 31) / 32] = 121 { 122 // MOV, ADD, SUB, MUL, MAD, SAD, RCP, L/PINTERP, TEX, TXF 123 0x00014e40, 0x00000080, 0x00001260, 0x00000000 124 }; 125 static const operation noDestList[] = 126 { 127 OP_STORE, OP_WRSV, OP_EXPORT, OP_BRA, OP_CALL, OP_RET, OP_EXIT, 128 OP_DISCARD, OP_CONT, OP_BREAK, OP_PRECONT, OP_PREBREAK, OP_PRERET, 129 OP_JOIN, OP_JOINAT, OP_BRKPT, OP_MEMBAR, OP_EMIT, OP_RESTART, 130 OP_QUADON, OP_QUADPOP, OP_TEXBAR, OP_SUSTB, OP_SUSTP, OP_SUREDP, 131 OP_SUREDB, OP_BAR 132 }; 133 static const operation noPredList[] = 134 { 135 OP_CALL, OP_PREBREAK, OP_PRERET, OP_QUADON, OP_QUADPOP, OP_JOINAT, 136 OP_EMIT, OP_RESTART 137 }; 138 139 for (i = 0; i < DATA_FILE_COUNT; ++i) 140 nativeFileMap[i] = (DataFile)i; 141 nativeFileMap[FILE_PREDICATE] = FILE_FLAGS; 142 143 for (i = 0; i < OP_LAST; ++i) { 144 opInfo[i].variants = NULL; 145 opInfo[i].op = (operation)i; 146 opInfo[i].srcTypes = 1 << (int)TYPE_F32; 147 opInfo[i].dstTypes = 1 << (int)TYPE_F32; 148 opInfo[i].immdBits = 0xffffffff; 149 opInfo[i].srcNr = operationSrcNr[i]; 150 151 for (j = 0; j < opInfo[i].srcNr; ++j) { 152 opInfo[i].srcMods[j] = 0; 153 opInfo[i].srcFiles[j] = 1 << (int)FILE_GPR; 154 } 155 opInfo[i].dstMods = 0; 156 opInfo[i].dstFiles = 1 << (int)FILE_GPR; 157 158 opInfo[i].hasDest = 1; 159 opInfo[i].vector = (i >= OP_TEX && i <= OP_TEXCSAA); 160 opInfo[i].commutative = (commutative[i / 32] >> (i % 32)) & 1; 161 opInfo[i].pseudo = (i < OP_MOV); 162 opInfo[i].predicate = !opInfo[i].pseudo; 163 opInfo[i].flow = (i >= OP_BRA && i <= OP_JOIN); 164 opInfo[i].minEncSize = (shortForm[i / 32] & (1 << (i % 32))) ? 4 : 8; 165 } 166 for (i = 0; i < sizeof(noDestList) / sizeof(noDestList[0]); ++i) 167 opInfo[noDestList[i]].hasDest = 0; 168 for (i = 0; i < sizeof(noPredList) / sizeof(noPredList[0]); ++i) 169 opInfo[noPredList[i]].predicate = 0; 170 171 for (i = 0; i < sizeof(_initProps) / sizeof(_initProps[0]); ++i) { 172 const struct opProperties *prop = &_initProps[i]; 173 174 for (int s = 0; s < 3; ++s) { 175 if (prop->mNeg & (1 << s)) 176 opInfo[prop->op].srcMods[s] |= NV50_IR_MOD_NEG; 177 if (prop->mAbs & (1 << s)) 178 opInfo[prop->op].srcMods[s] |= NV50_IR_MOD_ABS; 179 if (prop->mNot & (1 << s)) 180 opInfo[prop->op].srcMods[s] |= NV50_IR_MOD_NOT; 181 if (prop->fConst & (1 << s)) 182 opInfo[prop->op].srcFiles[s] |= 1 << (int)FILE_MEMORY_CONST; 183 if (prop->fShared & (1 << s)) 184 opInfo[prop->op].srcFiles[s] |= 1 << (int)FILE_MEMORY_SHARED; 185 if (prop->fAttrib & (1 << s)) 186 opInfo[prop->op].srcFiles[s] |= 1 << (int)FILE_SHADER_INPUT; 187 if (prop->fImm & (1 << s)) 188 opInfo[prop->op].srcFiles[s] |= 1 << (int)FILE_IMMEDIATE; 189 } 190 if (prop->mSat & 8) 191 opInfo[prop->op].dstMods = NV50_IR_MOD_SAT; 192 } 193 194 if (chipset >= 0xa0) 195 opInfo[OP_MUL].dstMods = NV50_IR_MOD_SAT; 196 } 197 198 unsigned int 199 TargetNV50::getFileSize(DataFile file) const 200 { 201 switch (file) { 202 case FILE_NULL: return 0; 203 case FILE_GPR: return 256; // in 16-bit units ** 204 case FILE_PREDICATE: return 0; 205 case FILE_FLAGS: return 4; 206 case FILE_ADDRESS: return 4; 207 case FILE_IMMEDIATE: return 0; 208 case FILE_MEMORY_CONST: return 65536; 209 case FILE_SHADER_INPUT: return 0x200; 210 case FILE_SHADER_OUTPUT: return 0x200; 211 case FILE_MEMORY_BUFFER: return 0xffffffff; 212 case FILE_MEMORY_GLOBAL: return 0xffffffff; 213 case FILE_MEMORY_SHARED: return 16 << 10; 214 case FILE_MEMORY_LOCAL: return 48 << 10; 215 case FILE_SYSTEM_VALUE: return 16; 216 default: 217 assert(!"invalid file"); 218 return 0; 219 } 220 // ** only first 128 units encodable for 16-bit regs 221 } 222 223 unsigned int 224 TargetNV50::getFileUnit(DataFile file) const 225 { 226 if (file == FILE_GPR || file == FILE_ADDRESS) 227 return 1; 228 if (file == FILE_SYSTEM_VALUE) 229 return 2; 230 return 0; 231 } 232 233 uint32_t 234 TargetNV50::getSVAddress(DataFile shaderFile, const Symbol *sym) const 235 { 236 switch (sym->reg.data.sv.sv) { 237 case SV_FACE: 238 return 0x3fc; 239 case SV_POSITION: 240 { 241 uint32_t addr = sysvalLocation[sym->reg.data.sv.sv]; 242 for (int c = 0; c < sym->reg.data.sv.index; ++c) 243 if (wposMask & (1 << c)) 244 addr += 4; 245 return addr; 246 } 247 case SV_PRIMITIVE_ID: 248 return shaderFile == FILE_SHADER_INPUT ? 0x18 : 249 sysvalLocation[sym->reg.data.sv.sv]; 250 case SV_NCTAID: 251 return 0x8 + 2 * sym->reg.data.sv.index; 252 case SV_CTAID: 253 return 0xc + 2 * sym->reg.data.sv.index; 254 case SV_NTID: 255 return 0x2 + 2 * sym->reg.data.sv.index; 256 case SV_TID: 257 return 0; 258 case SV_SAMPLE_POS: 259 return 0; /* sample position is handled differently */ 260 default: 261 return sysvalLocation[sym->reg.data.sv.sv]; 262 } 263 } 264 265 // long: rrr, arr, rcr, acr, rrc, arc, gcr, grr 266 // short: rr, ar, rc, gr 267 // immd: ri, gi 268 bool 269 TargetNV50::insnCanLoad(const Instruction *i, int s, 270 const Instruction *ld) const 271 { 272 DataFile sf = ld->src(0).getFile(); 273 274 // immediate 0 can be represented by GPR $r63/$r127 275 if (sf == FILE_IMMEDIATE && ld->getSrc(0)->reg.data.u64 == 0) 276 return (!i->isPseudo() && 277 !i->asTex() && 278 i->op != OP_EXPORT && i->op != OP_STORE); 279 280 if (sf == FILE_IMMEDIATE && (i->predSrc >= 0 || i->flagsDef >= 0)) 281 return false; 282 if (s >= opInfo[i->op].srcNr) 283 return false; 284 if (!(opInfo[i->op].srcFiles[s] & (1 << (int)sf))) 285 return false; 286 if (s == 2 && i->src(1).getFile() != FILE_GPR) 287 return false; 288 289 // NOTE: don't rely on flagsDef 290 if (sf == FILE_IMMEDIATE) 291 for (int d = 0; i->defExists(d); ++d) 292 if (i->def(d).getFile() == FILE_FLAGS) 293 return false; 294 295 unsigned mode = 0; 296 297 for (int z = 0; z < Target::operationSrcNr[i->op]; ++z) { 298 DataFile zf = (z == s) ? sf : i->src(z).getFile(); 299 switch (zf) { 300 case FILE_GPR: 301 break; 302 case FILE_MEMORY_SHARED: 303 case FILE_SHADER_INPUT: 304 mode |= 1 << (z * 2); 305 break; 306 case FILE_MEMORY_CONST: 307 mode |= 2 << (z * 2); 308 break; 309 case FILE_IMMEDIATE: 310 mode |= 3 << (z * 2); 311 default: 312 break; 313 } 314 } 315 316 switch (mode) { 317 case 0x00: 318 case 0x01: 319 case 0x03: 320 case 0x08: 321 case 0x0c: 322 case 0x20: 323 case 0x21: 324 break; 325 case 0x09: 326 // Shader inputs get transformed to p[] in geometry shaders, and those 327 // aren't allowed to be used at the same time as c[]. 328 if (ld->bb->getProgram()->getType() == Program::TYPE_GEOMETRY) 329 return false; 330 break; 331 case 0x0d: 332 if (ld->bb->getProgram()->getType() != Program::TYPE_GEOMETRY) 333 return false; 334 break; 335 default: 336 return false; 337 } 338 339 uint8_t ldSize; 340 341 if ((i->op == OP_MUL || i->op == OP_MAD) && !isFloatType(i->dType)) { 342 // 32-bit MUL will be split into 16-bit MULs 343 if (ld->src(0).isIndirect(0)) 344 return false; 345 if (sf == FILE_IMMEDIATE) 346 return false; 347 if (i->subOp == NV50_IR_SUBOP_MUL_HIGH && sf == FILE_MEMORY_CONST) 348 return false; 349 ldSize = 2; 350 } else { 351 ldSize = typeSizeof(ld->dType); 352 } 353 354 if (sf == FILE_IMMEDIATE) 355 return ldSize <= 4; 356 357 358 // Check if memory access is encodable: 359 360 if (ldSize < 4 && sf == FILE_SHADER_INPUT) // no < 4-byte aligned a[] access 361 return false; 362 if (ld->getSrc(0)->reg.data.offset > (int32_t)(127 * ldSize)) 363 return false; 364 365 if (ld->src(0).isIndirect(0)) { 366 for (int z = 0; i->srcExists(z); ++z) 367 if (i->src(z).isIndirect(0)) 368 return false; 369 370 // s[] access only possible in CP, $aX always applies 371 if (sf == FILE_MEMORY_SHARED) 372 return true; 373 if (!ld->bb) // can't check type ... 374 return false; 375 Program::Type pt = ld->bb->getProgram()->getType(); 376 377 // $aX applies to c[] only in VP, FP, GP if p[] is not accessed 378 if (pt == Program::TYPE_COMPUTE) 379 return false; 380 if (pt == Program::TYPE_GEOMETRY) { 381 if (sf == FILE_MEMORY_CONST) 382 return i->src(s).getFile() != FILE_SHADER_INPUT; 383 return sf == FILE_SHADER_INPUT; 384 } 385 return sf == FILE_MEMORY_CONST; 386 } 387 return true; 388 } 389 390 bool 391 TargetNV50::insnCanLoadOffset(const Instruction *i, int s, int offset) const 392 { 393 if (!i->src(s).isIndirect(0)) 394 return true; 395 offset += i->src(s).get()->reg.data.offset; 396 if (i->op == OP_LOAD || i->op == OP_STORE) { 397 // There are some restrictions in theory, but in practice they're never 398 // going to be hit. When we enable shared/global memory, this will 399 // become more important. 400 return true; 401 } 402 return offset >= 0 && offset <= (int32_t)(127 * i->src(s).get()->reg.size); 403 } 404 405 bool 406 TargetNV50::isAccessSupported(DataFile file, DataType ty) const 407 { 408 if (ty == TYPE_B96 || ty == TYPE_NONE) 409 return false; 410 if (typeSizeof(ty) > 4) 411 return (file == FILE_MEMORY_LOCAL) || (file == FILE_MEMORY_GLOBAL) || 412 (file == FILE_MEMORY_BUFFER); 413 return true; 414 } 415 416 bool 417 TargetNV50::isOpSupported(operation op, DataType ty) const 418 { 419 if (ty == TYPE_F64 && chipset < 0xa0) 420 return false; 421 422 switch (op) { 423 case OP_PRERET: 424 return chipset >= 0xa0; 425 case OP_TXG: 426 return chipset >= 0xa3 && chipset != 0xaa && chipset != 0xac; 427 case OP_POW: 428 case OP_SQRT: 429 case OP_DIV: 430 case OP_MOD: 431 case OP_SET_AND: 432 case OP_SET_OR: 433 case OP_SET_XOR: 434 case OP_SLCT: 435 case OP_SELP: 436 case OP_POPCNT: 437 case OP_INSBF: 438 case OP_EXTBF: 439 case OP_EXIT: // want exit modifier instead (on NOP if required) 440 case OP_MEMBAR: 441 case OP_SHLADD: 442 return false; 443 case OP_SAD: 444 return ty == TYPE_S32; 445 case OP_SET: 446 return !isFloatType(ty); 447 default: 448 return true; 449 } 450 } 451 452 bool 453 TargetNV50::isModSupported(const Instruction *insn, int s, Modifier mod) const 454 { 455 if (!isFloatType(insn->dType)) { 456 switch (insn->op) { 457 case OP_ABS: 458 case OP_NEG: 459 case OP_CVT: 460 case OP_CEIL: 461 case OP_FLOOR: 462 case OP_TRUNC: 463 case OP_AND: 464 case OP_OR: 465 case OP_XOR: 466 break; 467 case OP_ADD: 468 if (insn->src(s ? 0 : 1).mod.neg()) 469 return false; 470 break; 471 case OP_SUB: 472 if (s == 0) 473 return insn->src(1).mod.neg() ? false : true; 474 break; 475 case OP_SET: 476 if (insn->sType != TYPE_F32) 477 return false; 478 break; 479 default: 480 return false; 481 } 482 } 483 if (s >= opInfo[insn->op].srcNr || s >= 3) 484 return false; 485 return (mod & Modifier(opInfo[insn->op].srcMods[s])) == mod; 486 } 487 488 bool 489 TargetNV50::mayPredicate(const Instruction *insn, const Value *pred) const 490 { 491 if (insn->getPredicate() || insn->flagsSrc >= 0) 492 return false; 493 for (int s = 0; insn->srcExists(s); ++s) 494 if (insn->src(s).getFile() == FILE_IMMEDIATE) 495 return false; 496 return opInfo[insn->op].predicate; 497 } 498 499 bool 500 TargetNV50::isSatSupported(const Instruction *insn) const 501 { 502 if (insn->op == OP_CVT) 503 return true; 504 if (insn->dType != TYPE_F32) 505 return false; 506 return opInfo[insn->op].dstMods & NV50_IR_MOD_SAT; 507 } 508 509 int TargetNV50::getLatency(const Instruction *i) const 510 { 511 // TODO: tune these values 512 if (i->op == OP_LOAD) { 513 switch (i->src(0).getFile()) { 514 case FILE_MEMORY_LOCAL: 515 case FILE_MEMORY_GLOBAL: 516 case FILE_MEMORY_BUFFER: 517 return 100; // really 400 to 800 518 default: 519 return 22; 520 } 521 } 522 return 22; 523 } 524 525 // These are "inverse" throughput values, i.e. the number of cycles required 526 // to issue a specific instruction for a full warp (32 threads). 527 // 528 // Assuming we have more than 1 warp in flight, a higher issue latency results 529 // in a lower result latency since the MP will have spent more time with other 530 // warps. 531 // This also helps to determine the number of cycles between instructions in 532 // a single warp. 533 // 534 int TargetNV50::getThroughput(const Instruction *i) const 535 { 536 // TODO: tune these values 537 if (i->dType == TYPE_F32) { 538 switch (i->op) { 539 case OP_RCP: 540 case OP_RSQ: 541 case OP_LG2: 542 case OP_SIN: 543 case OP_COS: 544 case OP_PRESIN: 545 case OP_PREEX2: 546 return 16; 547 default: 548 return 4; 549 } 550 } else 551 if (i->dType == TYPE_U32 || i->dType == TYPE_S32) { 552 return 4; 553 } else 554 if (i->dType == TYPE_F64) { 555 return 32; 556 } else { 557 return 1; 558 } 559 } 560 561 static void 562 recordLocation(uint16_t *locs, uint8_t *masks, 563 const struct nv50_ir_varying *var) 564 { 565 uint16_t addr = var->slot[0] * 4; 566 567 switch (var->sn) { 568 case TGSI_SEMANTIC_POSITION: locs[SV_POSITION] = addr; break; 569 case TGSI_SEMANTIC_INSTANCEID: locs[SV_INSTANCE_ID] = addr; break; 570 case TGSI_SEMANTIC_VERTEXID: locs[SV_VERTEX_ID] = addr; break; 571 case TGSI_SEMANTIC_PRIMID: locs[SV_PRIMITIVE_ID] = addr; break; 572 case TGSI_SEMANTIC_LAYER: locs[SV_LAYER] = addr; break; 573 case TGSI_SEMANTIC_VIEWPORT_INDEX: locs[SV_VIEWPORT_INDEX] = addr; break; 574 default: 575 break; 576 } 577 if (var->sn == TGSI_SEMANTIC_POSITION && masks) 578 masks[0] = var->mask; 579 } 580 581 void 582 TargetNV50::parseDriverInfo(const struct nv50_ir_prog_info *info) 583 { 584 unsigned int i; 585 for (i = 0; i < info->numOutputs; ++i) 586 recordLocation(sysvalLocation, NULL, &info->out[i]); 587 for (i = 0; i < info->numInputs; ++i) 588 recordLocation(sysvalLocation, &wposMask, &info->in[i]); 589 for (i = 0; i < info->numSysVals; ++i) 590 recordLocation(sysvalLocation, NULL, &info->sv[i]); 591 592 if (sysvalLocation[SV_POSITION] >= 0x200) { 593 // not assigned by driver, but we need it internally 594 wposMask = 0x8; 595 sysvalLocation[SV_POSITION] = 0; 596 } 597 598 Target::parseDriverInfo(info); 599 } 600 601 } // namespace nv50_ir 602