src/gallium/drivers/nv50/codegen/nv50_ir_print.cpp

   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 "nv50_ir.h"
  24 #include "nv50_ir_target.h"
  25
  26 #define __STDC_FORMAT_MACROS
  27 #include <inttypes.h>
  28
  29 namespace nv50_ir {
  30
  31 enum TextStyle
  32 {
  33    TXT_DEFAULT,
  34    TXT_GPR,
  35    TXT_REGISTER,
  36    TXT_FLAGS,
  37    TXT_MEM,
  38    TXT_IMMD,
  39    TXT_BRA,
  40    TXT_INSN
  41 };
  42
  43 static const char *_colour[8] =
  44 {
  45    "\x1b[00m",
  46    "\x1b[34m",
  47    "\x1b[35m",
  48    "\x1b[35m",
  49    "\x1b[36m",
  50    "\x1b[33m",
  51    "\x1b[37m",
  52    "\x1b[32m"
  53 };
  54
  55 static const char *_nocolour[8] =
  56 {
  57       "", "", "", "", "", "", "", ""
  58 };
  59
  60 static const char **colour;
  61
  62 static void init_colours()
  63 {
  64    if (getenv("NV50_PROG_DEBUG_NO_COLORS") != NULL)
  65       colour = _nocolour;
  66    else
  67       colour = _colour;
  68 }
  69
  70 const char *operationStr[OP_LAST + 1] =
  71 {
  72    "nop",
  73    "phi",
  74    "union",
  75    "split",
  76    "merge",
  77    "consec",
  78    "mov",
  79    "ld",
  80    "st",
  81    "add",
  82    "sub",
  83    "mul",
  84    "div",
  85    "mod",
  86    "mad",
  87    "fma",
  88    "sad",
  89    "abs",
  90    "neg",
  91    "not",
  92    "and",
  93    "or",
  94    "xor",
  95    "shl",
  96    "shr",
  97    "max",
  98    "min",
  99    "sat",
 100    "ceil",
 101    "floor",
 102    "trunc",
 103    "cvt",
 104    "set and",
 105    "set or",
 106    "set xor",
 107    "set",
 108    "selp",
 109    "slct",
 110    "rcp",
 111    "rsq",
 112    "lg2",
 113    "sin",
 114    "cos",
 115    "ex2",
 116    "exp",
 117    "log",
 118    "presin",
 119    "preex2",
 120    "sqrt",
 121    "pow",
 122    "bra",
 123    "call",
 124    "ret",
 125    "cont",
 126    "break",
 127    "preret",
 128    "precont",
 129    "prebreak",
 130    "brkpt",
 131    "joinat",
 132    "join",
 133    "discard",
 134    "exit",
 135    "membar",
 136    "vfetch",
 137    "pfetch",
 138    "export",
 139    "linterp",
 140    "pinterp",
 141    "emit",
 142    "restart",
 143    "tex",
 144    "texbias",
 145    "texlod",
 146    "texfetch",
 147    "texquery",
 148    "texgrad",
 149    "texgather",
 150    "texcsaa",
 151    "texprep",
 152    "suldb",
 153    "suldp",
 154    "sustb",
 155    "sustp",
 156    "suredb",
 157    "suredp",
 158    "sulea",
 159    "subfm",
 160    "suclamp",
 161    "sueau",
 162    "madsp",
 163    "texbar",
 164    "dfdx",
 165    "dfdy",
 166    "rdsv",
 167    "wrsv",
 168    "quadop",
 169    "quadon",
 170    "quadpop",
 171    "popcnt",
 172    "insbf",
 173    "extbf",
 174    "permt",
 175    "atom",
 176    "bar",
 177    "vadd",
 178    "vavg",
 179    "vmin",
 180    "vmax",
 181    "vsad",
 182    "vset",
 183    "vshr",
 184    "vshl",
 185    "vsel",
 186    "cctl",
 187    "(invalid)"
 188 };
 189
 190 static const char *atomSubOpStr[] =
 191 {
 192    "add", "min", "max", "inc", "dec", "and", "or", "xor", "cas", "exch"
 193 };
 194
 195 static const char *DataTypeStr[] =
 196 {
 197    "-",
 198    "u8", "s8",
 199    "u16", "s16",
 200    "u32", "s32",
 201    "u64", "s64",
 202    "f16", "f32", "f64",
 203    "b96", "b128"
 204 };
 205
 206 static const char *RoundModeStr[] =
 207 {
 208    "", "rm", "rz", "rp", "rni", "rmi", "rzi", "rpi"
 209 };
 210
 211 static const char *CondCodeStr[] =
 212 {
 213    "never",
 214    "lt",
 215    "eq",
 216    "le",
 217    "gt",
 218    "ne",
 219    "ge",
 220    "",
 221    "(invalid)",
 222    "ltu",
 223    "equ",
 224    "leu",
 225    "gtu",
 226    "neu",
 227    "geu",
 228    "",
 229    "no",
 230    "nc",
 231    "ns",
 232    "na",
 233    "a",
 234    "s",
 235    "c",
 236    "o"
 237 };
 238
 239 static const char *SemanticStr[SV_LAST + 1] =
 240 {
 241    "POSITION",
 242    "VERTEX_ID",
 243    "INSTANCE_ID",
 244    "INVOCATION_ID",
 245    "PRIMITIVE_ID",
 246    "VERTEX_COUNT",
 247    "LAYER",
 248    "VIEWPORT_INDEX",
 249    "Y_DIR",
 250    "FACE",
 251    "POINT_SIZE",
 252    "POINT_COORD",
 253    "CLIP_DISTANCE",
 254    "SAMPLE_INDEX",
 255    "TESS_FACTOR",
 256    "TESS_COORD",
 257    "TID",
 258    "CTAID",
 259    "NTID",
 260    "GRIDID",
 261    "NCTAID",
 262    "LANEID",
 263    "PHYSID",
 264    "NPHYSID",
 265    "CLOCK",
 266    "LBASE",
 267    "SBASE",
 268    "?",
 269    "(INVALID)"
 270 };
 271
 272 static const char *interpStr[16] =
 273 {
 274    "pass",
 275    "mul",
 276    "flat",
 277    "sc",
 278    "cent pass",
 279    "cent mul",
 280    "cent flat",
 281    "cent sc",
 282    "off pass",
 283    "off mul",
 284    "off flat",
 285    "off sc",
 286    "samp pass",
 287    "samp mul",
 288    "samp flat",
 289    "samp sc"
 290 };
 291
 292 #define PRINT(args...)                                \
 293    do {                                               \
 294       pos += snprintf(&buf[pos], size - pos, args);   \
 295    } while(0)
 296
 297 #define SPACE_PRINT(cond, args...)                      \
 298    do {                                                 \
 299       if (cond)                                         \
 300          buf[pos++] = ' ';                              \
 301       pos += snprintf(&buf[pos], size - pos, args);     \
 302    } while(0)
 303
 304 #define SPACE()                                    \
 305    do {                                            \
 306       if (pos < size)                              \
 307          buf[pos++] = ' ';                         \
 308    } while(0)
 309
 310 int Modifier::print(char *buf, size_t size) const
 311 {
 312    size_t pos = 0;
 313
 314    if (bits)
 315       PRINT("%s", colour[TXT_INSN]);
 316
 317    size_t base = pos;
 318
 319    if (bits & NV50_IR_MOD_NOT)
 320       PRINT("not");
 321    if (bits & NV50_IR_MOD_SAT)
 322       SPACE_PRINT(pos > base && pos < size, "sat");
 323    if (bits & NV50_IR_MOD_NEG)
 324       SPACE_PRINT(pos > base && pos < size, "neg");
 325    if (bits & NV50_IR_MOD_ABS)
 326       SPACE_PRINT(pos > base && pos < size, "abs");
 327
 328    return pos;
 329 }
 330
 331 int LValue::print(char *buf, size_t size, DataType ty) const
 332 {
 333    const char *postFix = "";
 334    size_t pos = 0;
 335    int idx = join->reg.data.id >= 0 ? join->reg.data.id : id;
 336    char p = join->reg.data.id >= 0 ? '$' : '%';
 337    char r;
 338    int col = TXT_DEFAULT;
 339
 340    switch (reg.file) {
 341    case FILE_GPR:
 342       r = 'r'; col = TXT_GPR;
 343       if (reg.size == 2) {
 344          if (p == '$') {
 345             postFix = (idx & 1) ? "h" : "l";
 346             idx /= 2;
 347          } else {
 348             postFix = "s";
 349          }
 350       } else
 351       if (reg.size == 8) {
 352          postFix = "d";
 353       } else
 354       if (reg.size == 16) {
 355          postFix = "q";
 356       } else
 357       if (reg.size == 12) {
 358          postFix = "t";
 359       }
 360       break;
 361    case FILE_PREDICATE:
 362       r = 'p'; col = TXT_REGISTER;
 363       if (reg.size == 2)
 364          postFix = "d";
 365       else
 366       if (reg.size == 4)
 367          postFix = "q";
 368       break;
 369    case FILE_FLAGS:
 370       r = 'c'; col = TXT_FLAGS;
 371       break;
 372    case FILE_ADDRESS:
 373       r = 'a'; col = TXT_REGISTER;
 374       break;
 375    default:
 376       assert(!"invalid file for lvalue");
 377       r = '?';
 378       break;
 379    }
 380
 381    PRINT("%s%c%c%i%s", colour[col], p, r, idx, postFix);
 382
 383    return pos;
 384 }
 385
 386 int ImmediateValue::print(char *buf, size_t size, DataType ty) const
 387 {
 388    size_t pos = 0;
 389
 390    PRINT("%s", colour[TXT_IMMD]);
 391
 392    switch (ty) {
 393    case TYPE_F32: PRINT("%f", reg.data.f32); break;
 394    case TYPE_F64: PRINT("%f", reg.data.f64); break;
 395    case TYPE_U8:  PRINT("0x%02x", reg.data.u8); break;
 396    case TYPE_S8:  PRINT("%i", reg.data.s8); break;
 397    case TYPE_U16: PRINT("0x%04x", reg.data.u16); break;
 398    case TYPE_S16: PRINT("%i", reg.data.s16); break;
 399    case TYPE_U32: PRINT("0x%08x", reg.data.u32); break;
 400    case TYPE_S32: PRINT("%i", reg.data.s32); break;
 401    case TYPE_U64:
 402    case TYPE_S64:
 403    default:
 404       PRINT("0x%016"PRIx64, reg.data.u64);
 405       break;
 406    }
 407    return pos;
 408 }
 409
 410 int Symbol::print(char *buf, size_t size, DataType ty) const
 411 {
 412    return print(buf, size, NULL, NULL, ty);
 413 }
 414
 415 int Symbol::print(char *buf, size_t size,
 416                   Value *rel, Value *dimRel, DataType ty) const
 417 {
 418    size_t pos = 0;
 419    char c;
 420
 421    if (ty == TYPE_NONE)
 422       ty = typeOfSize(reg.size);
 423
 424    if (reg.file == FILE_SYSTEM_VALUE) {
 425       PRINT("%ssv[%s%s:%i%s", colour[TXT_MEM],
 426             colour[TXT_REGISTER],
 427             SemanticStr[reg.data.sv.sv], reg.data.sv.index, colour[TXT_MEM]);
 428       if (rel) {
 429          PRINT("%s+", colour[TXT_DEFAULT]);
 430          pos += rel->print(&buf[pos], size - pos);
 431       }
 432       PRINT("%s]", colour[TXT_MEM]);
 433       return pos;
 434    }
 435
 436    switch (reg.file) {
 437    case FILE_MEMORY_CONST:  c = 'c'; break;
 438    case FILE_SHADER_INPUT:  c = 'a'; break;
 439    case FILE_SHADER_OUTPUT: c = 'o'; break;
 440    case FILE_MEMORY_GLOBAL: c = 'g'; break;
 441    case FILE_MEMORY_SHARED: c = 's'; break;
 442    case FILE_MEMORY_LOCAL:  c = 'l'; break;
 443    default:
 444       assert(!"invalid file");
 445       c = '?';
 446       break;
 447    }
 448
 449    if (c == 'c')
 450       PRINT("%s%c%i[", colour[TXT_MEM], c, reg.fileIndex);
 451    else
 452       PRINT("%s%c[", colour[TXT_MEM], c);
 453
 454    if (dimRel) {
 455       pos += dimRel->print(&buf[pos], size - pos, TYPE_S32);
 456       PRINT("%s][", colour[TXT_MEM]);
 457    }
 458
 459    if (rel) {
 460       pos += rel->print(&buf[pos], size - pos);
 461       PRINT("%s%c", colour[TXT_DEFAULT], (reg.data.offset < 0) ? '-' : '+');
 462    } else {
 463       assert(reg.data.offset >= 0);
 464    }
 465    PRINT("%s0x%x%s]", colour[TXT_IMMD], abs(reg.data.offset), colour[TXT_MEM]);
 466
 467    return pos;
 468 }
 469
 470 void Instruction::print() const
 471 {
 472    #define BUFSZ 512
 473
 474    const size_t size = BUFSZ;
 475
 476    char buf[BUFSZ];
 477    int s, d;
 478    size_t pos = 0;
 479
 480    PRINT("%s", colour[TXT_INSN]);
 481
 482    if (join)
 483       PRINT("join ");
 484
 485    if (predSrc >= 0) {
 486       const size_t pre = pos;
 487       if (getSrc(predSrc)->reg.file == FILE_PREDICATE) {
 488          if (cc == CC_NOT_P)
 489             PRINT("not");
 490       } else {
 491          PRINT("%s", CondCodeStr[cc]);
 492       }
 493       if (pos > pre)
 494          SPACE();
 495       pos += getSrc(predSrc)->print(&buf[pos], BUFSZ - pos);
 496       PRINT(" %s", colour[TXT_INSN]);
 497    }
 498
 499    if (saturate)
 500       PRINT("sat ");
 501
 502    if (asFlow()) {
 503       PRINT("%s", operationStr[op]);
 504       if (asFlow()->indirect)
 505          PRINT(" ind");
 506       if (asFlow()->absolute)
 507          PRINT(" abs");
 508       if (op == OP_CALL && asFlow()->builtin) {
 509          PRINT(" %sBUILTIN:%i", colour[TXT_BRA], asFlow()->target.builtin);
 510       } else
 511       if (op == OP_CALL && asFlow()->target.fn) {
 512          PRINT(" %s%s:%i", colour[TXT_BRA],
 513                asFlow()->target.fn->getName(),
 514                asFlow()->target.fn->getLabel());
 515       } else
 516       if (asFlow()->target.bb)
 517          PRINT(" %sBB:%i", colour[TXT_BRA], asFlow()->target.bb->getId());
 518    } else {
 519       PRINT("%s ", operationStr[op]);
 520       if (op == OP_LINTERP || op == OP_PINTERP)
 521          PRINT("%s ", interpStr[ipa]);
 522       switch (op) {
 523       case OP_SUREDP:
 524       case OP_ATOM:
 525          if (subOp < Elements(atomSubOpStr))
 526             PRINT("%s ", atomSubOpStr[subOp]);
 527          break;
 528       default:
 529          if (subOp)
 530             PRINT("(SUBOP:%u) ", subOp);
 531          break;
 532       }
 533       if (perPatch)
 534          PRINT("patch ");
 535       if (asTex())
 536          PRINT("%s %s$r%u $s%u %s", asTex()->tex.target.getName(),
 537                colour[TXT_MEM], asTex()->tex.r, asTex()->tex.s,
 538                colour[TXT_INSN]);
 539       if (postFactor)
 540          PRINT("x2^%i ", postFactor);
 541       PRINT("%s%s", dnz ? "dnz " : (ftz ? "ftz " : ""),  DataTypeStr[dType]);
 542    }
 543
 544    if (rnd != ROUND_N)
 545       PRINT(" %s", RoundModeStr[rnd]);
 546
 547    if (defExists(1))
 548       PRINT(" {");
 549    for (d = 0; defExists(d); ++d) {
 550       SPACE();
 551       pos += getDef(d)->print(&buf[pos], size - pos);
 552    }
 553    if (d > 1)
 554       PRINT(" %s}", colour[TXT_INSN]);
 555    else
 556    if (!d && !asFlow())
 557       PRINT(" %s#", colour[TXT_INSN]);
 558
 559    if (asCmp())
 560       PRINT(" %s%s", colour[TXT_INSN], CondCodeStr[asCmp()->setCond]);
 561
 562    if (sType != dType)
 563       PRINT(" %s%s", colour[TXT_INSN], DataTypeStr[sType]);
 564
 565    for (s = 0; srcExists(s); ++s) {
 566       if (s == predSrc || src(s).usedAsPtr)
 567          continue;
 568       const size_t pre = pos;
 569       SPACE();
 570       pos += src(s).mod.print(&buf[pos], BUFSZ - pos);
 571       if (pos > pre + 1)
 572          SPACE();
 573       if (src(s).isIndirect(0) || src(s).isIndirect(1))
 574          pos += getSrc(s)->asSym()->print(&buf[pos], BUFSZ - pos,
 575                                           getIndirect(s, 0),
 576                                           getIndirect(s, 1));
 577       else
 578          pos += getSrc(s)->print(&buf[pos], BUFSZ - pos, sType);
 579    }
 580    if (exit)
 581       PRINT("%s exit", colour[TXT_INSN]);
 582
 583    PRINT("%s", colour[TXT_DEFAULT]);
 584
 585    buf[MIN2(pos, BUFSZ - 1)] = 0;
 586
 587    INFO("%s (%u)\n", buf, encSize);
 588 }
 589
 590 class PrintPass : public Pass
 591 {
 592 public:
 593    PrintPass() : serial(0) { }
 594
 595    virtual bool visit(Function *);
 596    virtual bool visit(BasicBlock *);
 597    virtual bool visit(Instruction *);
 598
 599 private:
 600    int serial;
 601 };
 602
 603 bool
 604 PrintPass::visit(Function *fn)
 605 {
 606    char str[16];
 607
 608    INFO("\n%s:%i (", fn->getName(), fn->getLabel());
 609
 610    if (!fn->outs.empty())
 611       INFO("out");
 612    for (std::deque<ValueRef>::iterator it = fn->outs.begin();
 613         it != fn->outs.end();
 614         ++it) {
 615       it->get()->print(str, sizeof(str), typeOfSize(it->get()->reg.size));
 616       INFO(" %s", str);
 617    }
 618
 619    if (!fn->ins.empty())
 620       INFO("%s%sin", colour[TXT_DEFAULT], fn->outs.empty() ? "" : ", ");
 621    for (std::deque<ValueDef>::iterator it = fn->ins.begin();
 622         it != fn->ins.end();
 623         ++it) {
 624       it->get()->print(str, sizeof(str), typeOfSize(it->get()->reg.size));
 625       INFO(" %s", str);
 626    }
 627    INFO("%s)\n", colour[TXT_DEFAULT]);
 628
 629    return true;
 630 }
 631
 632 bool
 633 PrintPass::visit(BasicBlock *bb)
 634 {
 635 #if 0
 636    INFO("---\n");
 637    for (Graph::EdgeIterator ei = bb->cfg.incident(); !ei.end(); ei.next())
 638       INFO(" <- BB:%i (%s)\n",
 639            BasicBlock::get(ei.getNode())->getId(),
 640            ei.getEdge()->typeStr());
 641 #endif
 642    INFO("BB:%i (%u instructions) - ", bb->getId(), bb->getInsnCount());
 643
 644    if (bb->idom())
 645       INFO("idom = BB:%i, ", bb->idom()->getId());
 646
 647    INFO("df = { ");
 648    for (DLList::Iterator df = bb->getDF().iterator(); !df.end(); df.next())
 649       INFO("BB:%i ", BasicBlock::get(df)->getId());
 650
 651    INFO("}\n");
 652
 653    for (Graph::EdgeIterator ei = bb->cfg.outgoing(); !ei.end(); ei.next())
 654       INFO(" -> BB:%i (%s)\n",
 655            BasicBlock::get(ei.getNode())->getId(),
 656            ei.getEdge()->typeStr());
 657
 658    return true;
 659 }
 660
 661 bool
 662 PrintPass::visit(Instruction *insn)
 663 {
 664    INFO("%3i: ", serial++);
 665    insn->print();
 666    return true;
 667 }
 668
 669 void
 670 Function::print()
 671 {
 672    PrintPass pass;
 673    pass.run(this, true, false);
 674 }
 675
 676 void
 677 Program::print()
 678 {
 679    PrintPass pass;
 680    init_colours();
 681    pass.run(this, true, false);
 682 }
 683
 684 void
 685 Function::printLiveIntervals() const
 686 {
 687    INFO("printing live intervals ...\n");
 688
 689    for (ArrayList::Iterator it = allLValues.iterator(); !it.end(); it.next()) {
 690       const Value *lval = Value::get(it)->asLValue();
 691       if (lval && !lval->livei.isEmpty()) {
 692          INFO("livei(%%%i): ", lval->id);
 693          lval->livei.print();
 694       }
 695    }
 696 }
 697
 698 } // namespace nv50_ir