src/llvm/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp

   1 //===-- SelectionDAGDumper.cpp - Implement SelectionDAG::dump() -----------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This implements the SelectionDAG::dump method and friends.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "llvm/CodeGen/SelectionDAG.h"
  15 #include "ScheduleDAGSDNodes.h"
  16 #include "llvm/ADT/StringExtras.h"
  17 #include "llvm/CodeGen/MachineConstantPool.h"
  18 #include "llvm/CodeGen/MachineFunction.h"
  19 #include "llvm/CodeGen/MachineModuleInfo.h"
  20 #include "llvm/IR/DebugInfo.h"
  21 #include "llvm/IR/Function.h"
  22 #include "llvm/IR/Intrinsics.h"
  23 #include "llvm/Support/Debug.h"
  24 #include "llvm/Support/GraphWriter.h"
  25 #include "llvm/Support/raw_ostream.h"
  26 #include "llvm/Target/TargetInstrInfo.h"
  27 #include "llvm/Target/TargetIntrinsicInfo.h"
  28 #include "llvm/Target/TargetMachine.h"
  29 #include "llvm/Target/TargetRegisterInfo.h"
  30 #include "llvm/Target/TargetSubtargetInfo.h"
  31 using namespace llvm;
  32
  33 std::string SDNode::getOperationName(const SelectionDAG *G) const {
  34   switch (getOpcode()) {
  35   default:
  36     if (getOpcode() < ISD::BUILTIN_OP_END)
  37       return "<<Unknown DAG Node>>";
  38     if (isMachineOpcode()) {
  39       if (G)
  40         if (const TargetInstrInfo *TII = G->getSubtarget().getInstrInfo())
  41           if (getMachineOpcode() < TII->getNumOpcodes())
  42             return TII->getName(getMachineOpcode());
  43       return "<<Unknown Machine Node #" + utostr(getOpcode()) + ">>";
  44     }
  45     if (G) {
  46       const TargetLowering &TLI = G->getTargetLoweringInfo();
  47       const char *Name = TLI.getTargetNodeName(getOpcode());
  48       if (Name) return Name;
  49       return "<<Unknown Target Node #" + utostr(getOpcode()) + ">>";
  50     }
  51     return "<<Unknown Node #" + utostr(getOpcode()) + ">>";
  52
  53 #ifndef NDEBUG
  54   case ISD::DELETED_NODE:               return "<<Deleted Node!>>";
  55 #endif
  56   case ISD::PREFETCH:                   return "Prefetch";
  57   case ISD::ATOMIC_FENCE:               return "AtomicFence";
  58   case ISD::ATOMIC_CMP_SWAP:            return "AtomicCmpSwap";
  59   case ISD::ATOMIC_CMP_SWAP_WITH_SUCCESS: return "AtomicCmpSwapWithSuccess";
  60   case ISD::ATOMIC_SWAP:                return "AtomicSwap";
  61   case ISD::ATOMIC_LOAD_ADD:            return "AtomicLoadAdd";
  62   case ISD::ATOMIC_LOAD_SUB:            return "AtomicLoadSub";
  63   case ISD::ATOMIC_LOAD_AND:            return "AtomicLoadAnd";
  64   case ISD::ATOMIC_LOAD_OR:             return "AtomicLoadOr";
  65   case ISD::ATOMIC_LOAD_XOR:            return "AtomicLoadXor";
  66   case ISD::ATOMIC_LOAD_NAND:           return "AtomicLoadNand";
  67   case ISD::ATOMIC_LOAD_MIN:            return "AtomicLoadMin";
  68   case ISD::ATOMIC_LOAD_MAX:            return "AtomicLoadMax";
  69   case ISD::ATOMIC_LOAD_UMIN:           return "AtomicLoadUMin";
  70   case ISD::ATOMIC_LOAD_UMAX:           return "AtomicLoadUMax";
  71   case ISD::ATOMIC_LOAD:                return "AtomicLoad";
  72   case ISD::ATOMIC_STORE:               return "AtomicStore";
  73   case ISD::PCMARKER:                   return "PCMarker";
  74   case ISD::READCYCLECOUNTER:           return "ReadCycleCounter";
  75   case ISD::SRCVALUE:                   return "SrcValue";
  76   case ISD::MDNODE_SDNODE:              return "MDNode";
  77   case ISD::EntryToken:                 return "EntryToken";
  78   case ISD::TokenFactor:                return "TokenFactor";
  79   case ISD::AssertSext:                 return "AssertSext";
  80   case ISD::AssertZext:                 return "AssertZext";
  81
  82   case ISD::BasicBlock:                 return "BasicBlock";
  83   case ISD::VALUETYPE:                  return "ValueType";
  84   case ISD::Register:                   return "Register";
  85   case ISD::RegisterMask:               return "RegisterMask";
  86   case ISD::Constant:
  87     if (cast<ConstantSDNode>(this)->isOpaque())
  88       return "OpaqueConstant";
  89     return "Constant";
  90   case ISD::ConstantFP:                 return "ConstantFP";
  91   case ISD::GlobalAddress:              return "GlobalAddress";
  92   case ISD::GlobalTLSAddress:           return "GlobalTLSAddress";
  93   case ISD::FrameIndex:                 return "FrameIndex";
  94   case ISD::JumpTable:                  return "JumpTable";
  95   case ISD::GLOBAL_OFFSET_TABLE:        return "GLOBAL_OFFSET_TABLE";
  96   case ISD::RETURNADDR:                 return "RETURNADDR";
  97   case ISD::FRAMEADDR:                  return "FRAMEADDR";
  98   case ISD::READ_REGISTER:              return "READ_REGISTER";
  99   case ISD::WRITE_REGISTER:             return "WRITE_REGISTER";
 100   case ISD::FRAME_TO_ARGS_OFFSET:       return "FRAME_TO_ARGS_OFFSET";
 101   case ISD::EH_RETURN:                  return "EH_RETURN";
 102   case ISD::EH_SJLJ_SETJMP:             return "EH_SJLJ_SETJMP";
 103   case ISD::EH_SJLJ_LONGJMP:            return "EH_SJLJ_LONGJMP";
 104   case ISD::ConstantPool:               return "ConstantPool";
 105   case ISD::TargetIndex:                return "TargetIndex";
 106   case ISD::ExternalSymbol:             return "ExternalSymbol";
 107   case ISD::BlockAddress:               return "BlockAddress";
 108   case ISD::INTRINSIC_WO_CHAIN:
 109   case ISD::INTRINSIC_VOID:
 110   case ISD::INTRINSIC_W_CHAIN: {
 111     unsigned OpNo = getOpcode() == ISD::INTRINSIC_WO_CHAIN ? 0 : 1;
 112     unsigned IID = cast<ConstantSDNode>(getOperand(OpNo))->getZExtValue();
 113     if (IID < Intrinsic::num_intrinsics)
 114       return Intrinsic::getName((Intrinsic::ID)IID);
 115     else if (const TargetIntrinsicInfo *TII = G->getTarget().getIntrinsicInfo())
 116       return TII->getName(IID);
 117     llvm_unreachable("Invalid intrinsic ID");
 118   }
 119
 120   case ISD::BUILD_VECTOR:               return "BUILD_VECTOR";
 121   case ISD::TargetConstant:
 122     if (cast<ConstantSDNode>(this)->isOpaque())
 123       return "OpaqueTargetConstant";
 124     return "TargetConstant";
 125   case ISD::TargetConstantFP:           return "TargetConstantFP";
 126   case ISD::TargetGlobalAddress:        return "TargetGlobalAddress";
 127   case ISD::TargetGlobalTLSAddress:     return "TargetGlobalTLSAddress";
 128   case ISD::TargetFrameIndex:           return "TargetFrameIndex";
 129   case ISD::TargetJumpTable:            return "TargetJumpTable";
 130   case ISD::TargetConstantPool:         return "TargetConstantPool";
 131   case ISD::TargetExternalSymbol:       return "TargetExternalSymbol";
 132   case ISD::TargetBlockAddress:         return "TargetBlockAddress";
 133
 134   case ISD::CopyToReg:                  return "CopyToReg";
 135   case ISD::CopyFromReg:                return "CopyFromReg";
 136   case ISD::UNDEF:                      return "undef";
 137   case ISD::MERGE_VALUES:               return "merge_values";
 138   case ISD::INLINEASM:                  return "inlineasm";
 139   case ISD::EH_LABEL:                   return "eh_label";
 140   case ISD::HANDLENODE:                 return "handlenode";
 141
 142   // Unary operators
 143   case ISD::FABS:                       return "fabs";
 144   case ISD::FMINNUM:                    return "fminnum";
 145   case ISD::FMAXNUM:                    return "fmaxnum";
 146   case ISD::FNEG:                       return "fneg";
 147   case ISD::FSQRT:                      return "fsqrt";
 148   case ISD::FSIN:                       return "fsin";
 149   case ISD::FCOS:                       return "fcos";
 150   case ISD::FSINCOS:                    return "fsincos";
 151   case ISD::FTRUNC:                     return "ftrunc";
 152   case ISD::FFLOOR:                     return "ffloor";
 153   case ISD::FCEIL:                      return "fceil";
 154   case ISD::FRINT:                      return "frint";
 155   case ISD::FNEARBYINT:                 return "fnearbyint";
 156   case ISD::FROUND:                     return "fround";
 157   case ISD::FEXP:                       return "fexp";
 158   case ISD::FEXP2:                      return "fexp2";
 159   case ISD::FLOG:                       return "flog";
 160   case ISD::FLOG2:                      return "flog2";
 161   case ISD::FLOG10:                     return "flog10";
 162
 163   // Binary operators
 164   case ISD::ADD:                        return "add";
 165   case ISD::SUB:                        return "sub";
 166   case ISD::MUL:                        return "mul";
 167   case ISD::MULHU:                      return "mulhu";
 168   case ISD::MULHS:                      return "mulhs";
 169   case ISD::SDIV:                       return "sdiv";
 170   case ISD::UDIV:                       return "udiv";
 171   case ISD::SREM:                       return "srem";
 172   case ISD::UREM:                       return "urem";
 173   case ISD::SMUL_LOHI:                  return "smul_lohi";
 174   case ISD::UMUL_LOHI:                  return "umul_lohi";
 175   case ISD::SDIVREM:                    return "sdivrem";
 176   case ISD::UDIVREM:                    return "udivrem";
 177   case ISD::AND:                        return "and";
 178   case ISD::OR:                         return "or";
 179   case ISD::XOR:                        return "xor";
 180   case ISD::SHL:                        return "shl";
 181   case ISD::SRA:                        return "sra";
 182   case ISD::SRL:                        return "srl";
 183   case ISD::ROTL:                       return "rotl";
 184   case ISD::ROTR:                       return "rotr";
 185   case ISD::FADD:                       return "fadd";
 186   case ISD::FSUB:                       return "fsub";
 187   case ISD::FMUL:                       return "fmul";
 188   case ISD::FDIV:                       return "fdiv";
 189   case ISD::FMA:                        return "fma";
 190   case ISD::FREM:                       return "frem";
 191   case ISD::FCOPYSIGN:                  return "fcopysign";
 192   case ISD::FGETSIGN:                   return "fgetsign";
 193   case ISD::FPOW:                       return "fpow";
 194
 195   case ISD::FPOWI:                      return "fpowi";
 196   case ISD::SETCC:                      return "setcc";
 197   case ISD::SELECT:                     return "select";
 198   case ISD::VSELECT:                    return "vselect";
 199   case ISD::SELECT_CC:                  return "select_cc";
 200   case ISD::INSERT_VECTOR_ELT:          return "insert_vector_elt";
 201   case ISD::EXTRACT_VECTOR_ELT:         return "extract_vector_elt";
 202   case ISD::CONCAT_VECTORS:             return "concat_vectors";
 203   case ISD::INSERT_SUBVECTOR:           return "insert_subvector";
 204   case ISD::EXTRACT_SUBVECTOR:          return "extract_subvector";
 205   case ISD::SCALAR_TO_VECTOR:           return "scalar_to_vector";
 206   case ISD::VECTOR_SHUFFLE:             return "vector_shuffle";
 207   case ISD::CARRY_FALSE:                return "carry_false";
 208   case ISD::ADDC:                       return "addc";
 209   case ISD::ADDE:                       return "adde";
 210   case ISD::SADDO:                      return "saddo";
 211   case ISD::UADDO:                      return "uaddo";
 212   case ISD::SSUBO:                      return "ssubo";
 213   case ISD::USUBO:                      return "usubo";
 214   case ISD::SMULO:                      return "smulo";
 215   case ISD::UMULO:                      return "umulo";
 216   case ISD::SUBC:                       return "subc";
 217   case ISD::SUBE:                       return "sube";
 218   case ISD::SHL_PARTS:                  return "shl_parts";
 219   case ISD::SRA_PARTS:                  return "sra_parts";
 220   case ISD::SRL_PARTS:                  return "srl_parts";
 221
 222   // Conversion operators.
 223   case ISD::SIGN_EXTEND:                return "sign_extend";
 224   case ISD::ZERO_EXTEND:                return "zero_extend";
 225   case ISD::ANY_EXTEND:                 return "any_extend";
 226   case ISD::SIGN_EXTEND_INREG:          return "sign_extend_inreg";
 227   case ISD::ANY_EXTEND_VECTOR_INREG:    return "any_extend_vector_inreg";
 228   case ISD::SIGN_EXTEND_VECTOR_INREG:   return "sign_extend_vector_inreg";
 229   case ISD::ZERO_EXTEND_VECTOR_INREG:   return "zero_extend_vector_inreg";
 230   case ISD::TRUNCATE:                   return "truncate";
 231   case ISD::FP_ROUND:                   return "fp_round";
 232   case ISD::FLT_ROUNDS_:                return "flt_rounds";
 233   case ISD::FP_ROUND_INREG:             return "fp_round_inreg";
 234   case ISD::FP_EXTEND:                  return "fp_extend";
 235
 236   case ISD::SINT_TO_FP:                 return "sint_to_fp";
 237   case ISD::UINT_TO_FP:                 return "uint_to_fp";
 238   case ISD::FP_TO_SINT:                 return "fp_to_sint";
 239   case ISD::FP_TO_UINT:                 return "fp_to_uint";
 240   case ISD::BITCAST:                    return "bitcast";
 241   case ISD::ADDRSPACECAST:              return "addrspacecast";
 242   case ISD::FP16_TO_FP:                 return "fp16_to_fp";
 243   case ISD::FP_TO_FP16:                 return "fp_to_fp16";
 244
 245   case ISD::CONVERT_RNDSAT: {
 246     switch (cast<CvtRndSatSDNode>(this)->getCvtCode()) {
 247     default: llvm_unreachable("Unknown cvt code!");
 248     case ISD::CVT_FF:                   return "cvt_ff";
 249     case ISD::CVT_FS:                   return "cvt_fs";
 250     case ISD::CVT_FU:                   return "cvt_fu";
 251     case ISD::CVT_SF:                   return "cvt_sf";
 252     case ISD::CVT_UF:                   return "cvt_uf";
 253     case ISD::CVT_SS:                   return "cvt_ss";
 254     case ISD::CVT_SU:                   return "cvt_su";
 255     case ISD::CVT_US:                   return "cvt_us";
 256     case ISD::CVT_UU:                   return "cvt_uu";
 257     }
 258   }
 259
 260     // Control flow instructions
 261   case ISD::BR:                         return "br";
 262   case ISD::BRIND:                      return "brind";
 263   case ISD::BR_JT:                      return "br_jt";
 264   case ISD::BRCOND:                     return "brcond";
 265   case ISD::BR_CC:                      return "br_cc";
 266   case ISD::CALLSEQ_START:              return "callseq_start";
 267   case ISD::CALLSEQ_END:                return "callseq_end";
 268
 269     // Other operators
 270   case ISD::LOAD:                       return "load";
 271   case ISD::STORE:                      return "store";
 272   case ISD::MLOAD:                      return "masked_load";
 273   case ISD::MSTORE:                     return "masked_store";
 274   case ISD::VAARG:                      return "vaarg";
 275   case ISD::VACOPY:                     return "vacopy";
 276   case ISD::VAEND:                      return "vaend";
 277   case ISD::VASTART:                    return "vastart";
 278   case ISD::DYNAMIC_STACKALLOC:         return "dynamic_stackalloc";
 279   case ISD::EXTRACT_ELEMENT:            return "extract_element";
 280   case ISD::BUILD_PAIR:                 return "build_pair";
 281   case ISD::STACKSAVE:                  return "stacksave";
 282   case ISD::STACKRESTORE:               return "stackrestore";
 283   case ISD::TRAP:                       return "trap";
 284   case ISD::DEBUGTRAP:                  return "debugtrap";
 285   case ISD::LIFETIME_START:             return "lifetime.start";
 286   case ISD::LIFETIME_END:               return "lifetime.end";
 287
 288   // Bit manipulation
 289   case ISD::BSWAP:                      return "bswap";
 290   case ISD::CTPOP:                      return "ctpop";
 291   case ISD::CTTZ:                       return "cttz";
 292   case ISD::CTTZ_ZERO_UNDEF:            return "cttz_zero_undef";
 293   case ISD::CTLZ:                       return "ctlz";
 294   case ISD::CTLZ_ZERO_UNDEF:            return "ctlz_zero_undef";
 295
 296   // Trampolines
 297   case ISD::INIT_TRAMPOLINE:            return "init_trampoline";
 298   case ISD::ADJUST_TRAMPOLINE:          return "adjust_trampoline";
 299
 300   case ISD::CONDCODE:
 301     switch (cast<CondCodeSDNode>(this)->get()) {
 302     default: llvm_unreachable("Unknown setcc condition!");
 303     case ISD::SETOEQ:                   return "setoeq";
 304     case ISD::SETOGT:                   return "setogt";
 305     case ISD::SETOGE:                   return "setoge";
 306     case ISD::SETOLT:                   return "setolt";
 307     case ISD::SETOLE:                   return "setole";
 308     case ISD::SETONE:                   return "setone";
 309
 310     case ISD::SETO:                     return "seto";
 311     case ISD::SETUO:                    return "setuo";
 312     case ISD::SETUEQ:                   return "setue";
 313     case ISD::SETUGT:                   return "setugt";
 314     case ISD::SETUGE:                   return "setuge";
 315     case ISD::SETULT:                   return "setult";
 316     case ISD::SETULE:                   return "setule";
 317     case ISD::SETUNE:                   return "setune";
 318
 319     case ISD::SETEQ:                    return "seteq";
 320     case ISD::SETGT:                    return "setgt";
 321     case ISD::SETGE:                    return "setge";
 322     case ISD::SETLT:                    return "setlt";
 323     case ISD::SETLE:                    return "setle";
 324     case ISD::SETNE:                    return "setne";
 325
 326     case ISD::SETTRUE:                  return "settrue";
 327     case ISD::SETTRUE2:                 return "settrue2";
 328     case ISD::SETFALSE:                 return "setfalse";
 329     case ISD::SETFALSE2:                return "setfalse2";
 330     }
 331   }
 332 }
 333
 334 const char *SDNode::getIndexedModeName(ISD::MemIndexedMode AM) {
 335   switch (AM) {
 336   default:              return "";
 337   case ISD::PRE_INC:    return "<pre-inc>";
 338   case ISD::PRE_DEC:    return "<pre-dec>";
 339   case ISD::POST_INC:   return "<post-inc>";
 340   case ISD::POST_DEC:   return "<post-dec>";
 341   }
 342 }
 343
 344 void SDNode::dump() const { dump(nullptr); }
 345 void SDNode::dump(const SelectionDAG *G) const {
 346   print(dbgs(), G);
 347   dbgs() << '\n';
 348 }
 349
 350 void SDNode::print_types(raw_ostream &OS, const SelectionDAG *G) const {
 351   OS << (const void*)this << ": ";
 352
 353   for (unsigned i = 0, e = getNumValues(); i != e; ++i) {
 354     if (i) OS << ",";
 355     if (getValueType(i) == MVT::Other)
 356       OS << "ch";
 357     else
 358       OS << getValueType(i).getEVTString();
 359   }
 360   OS << " = " << getOperationName(G);
 361 }
 362
 363 void SDNode::print_details(raw_ostream &OS, const SelectionDAG *G) const {
 364   if (const MachineSDNode *MN = dyn_cast<MachineSDNode>(this)) {
 365     if (!MN->memoperands_empty()) {
 366       OS << "<";
 367       OS << "Mem:";
 368       for (MachineSDNode::mmo_iterator i = MN->memoperands_begin(),
 369            e = MN->memoperands_end(); i != e; ++i) {
 370         OS << **i;
 371         if (std::next(i) != e)
 372           OS << " ";
 373       }
 374       OS << ">";
 375     }
 376   } else if (const ShuffleVectorSDNode *SVN =
 377                dyn_cast<ShuffleVectorSDNode>(this)) {
 378     OS << "<";
 379     for (unsigned i = 0, e = ValueList[0].getVectorNumElements(); i != e; ++i) {
 380       int Idx = SVN->getMaskElt(i);
 381       if (i) OS << ",";
 382       if (Idx < 0)
 383         OS << "u";
 384       else
 385         OS << Idx;
 386     }
 387     OS << ">";
 388   } else if (const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(this)) {
 389     OS << '<' << CSDN->getAPIntValue() << '>';
 390   } else if (const ConstantFPSDNode *CSDN = dyn_cast<ConstantFPSDNode>(this)) {
 391     if (&CSDN->getValueAPF().getSemantics()==&APFloat::IEEEsingle)
 392       OS << '<' << CSDN->getValueAPF().convertToFloat() << '>';
 393     else if (&CSDN->getValueAPF().getSemantics()==&APFloat::IEEEdouble)
 394       OS << '<' << CSDN->getValueAPF().convertToDouble() << '>';
 395     else {
 396       OS << "<APFloat(";
 397       CSDN->getValueAPF().bitcastToAPInt().dump();
 398       OS << ")>";
 399     }
 400   } else if (const GlobalAddressSDNode *GADN =
 401              dyn_cast<GlobalAddressSDNode>(this)) {
 402     int64_t offset = GADN->getOffset();
 403     OS << '<';
 404     GADN->getGlobal()->printAsOperand(OS);
 405     OS << '>';
 406     if (offset > 0)
 407       OS << " + " << offset;
 408     else
 409       OS << " " << offset;
 410     if (unsigned int TF = GADN->getTargetFlags())
 411       OS << " [TF=" << TF << ']';
 412   } else if (const FrameIndexSDNode *FIDN = dyn_cast<FrameIndexSDNode>(this)) {
 413     OS << "<" << FIDN->getIndex() << ">";
 414   } else if (const JumpTableSDNode *JTDN = dyn_cast<JumpTableSDNode>(this)) {
 415     OS << "<" << JTDN->getIndex() << ">";
 416     if (unsigned int TF = JTDN->getTargetFlags())
 417       OS << " [TF=" << TF << ']';
 418   } else if (const ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(this)){
 419     int offset = CP->getOffset();
 420     if (CP->isMachineConstantPoolEntry())
 421       OS << "<" << *CP->getMachineCPVal() << ">";
 422     else
 423       OS << "<" << *CP->getConstVal() << ">";
 424     if (offset > 0)
 425       OS << " + " << offset;
 426     else
 427       OS << " " << offset;
 428     if (unsigned int TF = CP->getTargetFlags())
 429       OS << " [TF=" << TF << ']';
 430   } else if (const TargetIndexSDNode *TI = dyn_cast<TargetIndexSDNode>(this)) {
 431     OS << "<" << TI->getIndex() << '+' << TI->getOffset() << ">";
 432     if (unsigned TF = TI->getTargetFlags())
 433       OS << " [TF=" << TF << ']';
 434   } else if (const BasicBlockSDNode *BBDN = dyn_cast<BasicBlockSDNode>(this)) {
 435     OS << "<";
 436     const Value *LBB = (const Value*)BBDN->getBasicBlock()->getBasicBlock();
 437     if (LBB)
 438       OS << LBB->getName() << " ";
 439     OS << (const void*)BBDN->getBasicBlock() << ">";
 440   } else if (const RegisterSDNode *R = dyn_cast<RegisterSDNode>(this)) {
 441     OS << ' ' << PrintReg(R->getReg(),
 442                           G ? G->getSubtarget().getRegisterInfo() : nullptr);
 443   } else if (const ExternalSymbolSDNode *ES =
 444              dyn_cast<ExternalSymbolSDNode>(this)) {
 445     OS << "'" << ES->getSymbol() << "'";
 446     if (unsigned int TF = ES->getTargetFlags())
 447       OS << " [TF=" << TF << ']';
 448   } else if (const SrcValueSDNode *M = dyn_cast<SrcValueSDNode>(this)) {
 449     if (M->getValue())
 450       OS << "<" << M->getValue() << ">";
 451     else
 452       OS << "<null>";
 453   } else if (const MDNodeSDNode *MD = dyn_cast<MDNodeSDNode>(this)) {
 454     if (MD->getMD())
 455       OS << "<" << MD->getMD() << ">";
 456     else
 457       OS << "<null>";
 458   } else if (const VTSDNode *N = dyn_cast<VTSDNode>(this)) {
 459     OS << ":" << N->getVT().getEVTString();
 460   }
 461   else if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(this)) {
 462     OS << "<" << *LD->getMemOperand();
 463
 464     bool doExt = true;
 465     switch (LD->getExtensionType()) {
 466     default: doExt = false; break;
 467     case ISD::EXTLOAD:  OS << ", anyext"; break;
 468     case ISD::SEXTLOAD: OS << ", sext"; break;
 469     case ISD::ZEXTLOAD: OS << ", zext"; break;
 470     }
 471     if (doExt)
 472       OS << " from " << LD->getMemoryVT().getEVTString();
 473
 474     const char *AM = getIndexedModeName(LD->getAddressingMode());
 475     if (*AM)
 476       OS << ", " << AM;
 477
 478     OS << ">";
 479   } else if (const StoreSDNode *ST = dyn_cast<StoreSDNode>(this)) {
 480     OS << "<" << *ST->getMemOperand();
 481
 482     if (ST->isTruncatingStore())
 483       OS << ", trunc to " << ST->getMemoryVT().getEVTString();
 484
 485     const char *AM = getIndexedModeName(ST->getAddressingMode());
 486     if (*AM)
 487       OS << ", " << AM;
 488
 489     OS << ">";
 490   } else if (const MemSDNode* M = dyn_cast<MemSDNode>(this)) {
 491     OS << "<" << *M->getMemOperand() << ">";
 492   } else if (const BlockAddressSDNode *BA =
 493                dyn_cast<BlockAddressSDNode>(this)) {
 494     int64_t offset = BA->getOffset();
 495     OS << "<";
 496     BA->getBlockAddress()->getFunction()->printAsOperand(OS, false);
 497     OS << ", ";
 498     BA->getBlockAddress()->getBasicBlock()->printAsOperand(OS, false);
 499     OS << ">";
 500     if (offset > 0)
 501       OS << " + " << offset;
 502     else
 503       OS << " " << offset;
 504     if (unsigned int TF = BA->getTargetFlags())
 505       OS << " [TF=" << TF << ']';
 506   } else if (const AddrSpaceCastSDNode *ASC =
 507                dyn_cast<AddrSpaceCastSDNode>(this)) {
 508     OS << '['
 509        << ASC->getSrcAddressSpace()
 510        << " -> "
 511        << ASC->getDestAddressSpace()
 512        << ']';
 513   }
 514
 515   if (unsigned Order = getIROrder())
 516       OS << " [ORD=" << Order << ']';
 517
 518   if (getNodeId() != -1)
 519     OS << " [ID=" << getNodeId() << ']';
 520
 521   DebugLoc dl = getDebugLoc();
 522   if (G && !dl.isUnknown()) {
 523     DIScope
 524       Scope(dl.getScope(G->getMachineFunction().getFunction()->getContext()));
 525     OS << " dbg:";
 526     assert((!Scope || Scope.isScope()) &&
 527       "Scope of a DebugLoc should be null or a DIScope.");
 528     // Omit the directory, since it's usually long and uninteresting.
 529     if (Scope)
 530       OS << Scope.getFilename();
 531     else
 532       OS << "<unknown>";
 533     OS << ':' << dl.getLine();
 534     if (dl.getCol() != 0)
 535       OS << ':' << dl.getCol();
 536   }
 537 }
 538
 539 static void DumpNodes(const SDNode *N, unsigned indent, const SelectionDAG *G) {
 540   for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
 541     if (N->getOperand(i).getNode()->hasOneUse())
 542       DumpNodes(N->getOperand(i).getNode(), indent+2, G);
 543     else
 544       dbgs() << "\n" << std::string(indent+2, ' ')
 545              << (void*)N->getOperand(i).getNode() << ": <multiple use>";
 546
 547   dbgs() << '\n';
 548   dbgs().indent(indent);
 549   N->dump(G);
 550 }
 551
 552 void SelectionDAG::dump() const {
 553   dbgs() << "SelectionDAG has " << AllNodes.size() << " nodes:";
 554
 555   for (allnodes_const_iterator I = allnodes_begin(), E = allnodes_end();
 556        I != E; ++I) {
 557     const SDNode *N = I;
 558     if (!N->hasOneUse() && N != getRoot().getNode())
 559       DumpNodes(N, 2, this);
 560   }
 561
 562   if (getRoot().getNode()) DumpNodes(getRoot().getNode(), 2, this);
 563   dbgs() << "\n\n";
 564 }
 565
 566 void SDNode::printr(raw_ostream &OS, const SelectionDAG *G) const {
 567   print_types(OS, G);
 568   print_details(OS, G);
 569 }
 570
 571 typedef SmallPtrSet<const SDNode *, 128> VisitedSDNodeSet;
 572 static void DumpNodesr(raw_ostream &OS, const SDNode *N, unsigned indent,
 573                        const SelectionDAG *G, VisitedSDNodeSet &once) {
 574   if (!once.insert(N).second) // If we've been here before, return now.
 575     return;
 576
 577   // Dump the current SDNode, but don't end the line yet.
 578   OS.indent(indent);
 579   N->printr(OS, G);
 580
 581   // Having printed this SDNode, walk the children:
 582   for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
 583     const SDNode *child = N->getOperand(i).getNode();
 584
 585     if (i) OS << ",";
 586     OS << " ";
 587
 588     if (child->getNumOperands() == 0) {
 589       // This child has no grandchildren; print it inline right here.
 590       child->printr(OS, G);
 591       once.insert(child);
 592     } else {         // Just the address. FIXME: also print the child's opcode.
 593       OS << (const void*)child;
 594       if (unsigned RN = N->getOperand(i).getResNo())
 595         OS << ":" << RN;
 596     }
 597   }
 598
 599   OS << "\n";
 600
 601   // Dump children that have grandchildren on their own line(s).
 602   for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
 603     const SDNode *child = N->getOperand(i).getNode();
 604     DumpNodesr(OS, child, indent+2, G, once);
 605   }
 606 }
 607
 608 void SDNode::dumpr() const {
 609   VisitedSDNodeSet once;
 610   DumpNodesr(dbgs(), this, 0, nullptr, once);
 611 }
 612
 613 void SDNode::dumpr(const SelectionDAG *G) const {
 614   VisitedSDNodeSet once;
 615   DumpNodesr(dbgs(), this, 0, G, once);
 616 }
 617
 618 static void printrWithDepthHelper(raw_ostream &OS, const SDNode *N,
 619                                   const SelectionDAG *G, unsigned depth,
 620                                   unsigned indent) {
 621   if (depth == 0)
 622     return;
 623
 624   OS.indent(indent);
 625
 626   N->print(OS, G);
 627
 628   if (depth < 1)
 629     return;
 630
 631   for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
 632     // Don't follow chain operands.
 633     if (N->getOperand(i).getValueType() == MVT::Other)
 634       continue;
 635     OS << '\n';
 636     printrWithDepthHelper(OS, N->getOperand(i).getNode(), G, depth-1, indent+2);
 637   }
 638 }
 639
 640 void SDNode::printrWithDepth(raw_ostream &OS, const SelectionDAG *G,
 641                             unsigned depth) const {
 642   printrWithDepthHelper(OS, this, G, depth, 0);
 643 }
 644
 645 void SDNode::printrFull(raw_ostream &OS, const SelectionDAG *G) const {
 646   // Don't print impossibly deep things.
 647   printrWithDepth(OS, G, 10);
 648 }
 649
 650 void SDNode::dumprWithDepth(const SelectionDAG *G, unsigned depth) const {
 651   printrWithDepth(dbgs(), G, depth);
 652 }
 653
 654 void SDNode::dumprFull(const SelectionDAG *G) const {
 655   // Don't print impossibly deep things.
 656   dumprWithDepth(G, 10);
 657 }
 658
 659 void SDNode::print(raw_ostream &OS, const SelectionDAG *G) const {
 660   print_types(OS, G);
 661   for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
 662     if (i) OS << ", "; else OS << " ";
 663     OS << (void*)getOperand(i).getNode();
 664     if (unsigned RN = getOperand(i).getResNo())
 665       OS << ":" << RN;
 666   }
 667   print_details(OS, G);
 668 }