1//===- SelectionDAGDumper.cpp - Implement SelectionDAG::dump() ------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This implements the SelectionDAG::dump method and friends.
10//
11//===----------------------------------------------------------------------===//
12
13#include "llvm/ADT/APFloat.h"
14#include "llvm/ADT/APInt.h"
15#include "llvm/ADT/None.h"
16#include "llvm/ADT/SmallPtrSet.h"
17#include "llvm/ADT/StringExtras.h"
18#include "llvm/CodeGen/ISDOpcodes.h"
19#include "llvm/CodeGen/MachineBasicBlock.h"
20#include "llvm/CodeGen/MachineConstantPool.h"
21#include "llvm/CodeGen/MachineMemOperand.h"
22#include "llvm/CodeGen/SelectionDAG.h"
23#include "llvm/CodeGen/SelectionDAGNodes.h"
24#include "llvm/CodeGen/TargetInstrInfo.h"
25#include "llvm/CodeGen/TargetLowering.h"
26#include "llvm/CodeGen/TargetRegisterInfo.h"
27#include "llvm/CodeGen/TargetSubtargetInfo.h"
28#include "llvm/CodeGen/ValueTypes.h"
29#include "llvm/Config/llvm-config.h"
30#include "llvm/IR/BasicBlock.h"
31#include "llvm/IR/Constants.h"
32#include "llvm/IR/DebugInfoMetadata.h"
33#include "llvm/IR/DebugLoc.h"
34#include "llvm/IR/Function.h"
35#include "llvm/IR/Intrinsics.h"
36#include "llvm/IR/ModuleSlotTracker.h"
37#include "llvm/IR/Value.h"
38#include "llvm/Support/Casting.h"
39#include "llvm/Support/CommandLine.h"
40#include "llvm/Support/Compiler.h"
41#include "llvm/Support/Debug.h"
42#include "llvm/Support/ErrorHandling.h"
43#include "llvm/Support/MachineValueType.h"
44#include "llvm/Support/Printable.h"
45#include "llvm/Support/raw_ostream.h"
46#include "llvm/Target/TargetIntrinsicInfo.h"
47#include "llvm/Target/TargetMachine.h"
48#include "SDNodeDbgValue.h"
49#include <cstdint>
50#include <iterator>
51
52using namespace llvm;
53
54static cl::opt<bool>
55VerboseDAGDumping("dag-dump-verbose", cl::Hidden,
56                  cl::desc("Display more information when dumping selection "
57                           "DAG nodes."));
58
59std::string SDNode::getOperationName(const SelectionDAG *G) const {
60  switch (getOpcode()) {
61  default:
62    if (getOpcode() < ISD::BUILTIN_OP_END)
63      return "<<Unknown DAG Node>>";
64    if (isMachineOpcode()) {
65      if (G)
66        if (const TargetInstrInfo *TII = G->getSubtarget().getInstrInfo())
67          if (getMachineOpcode() < TII->getNumOpcodes())
68            return TII->getName(getMachineOpcode());
69      return "<<Unknown Machine Node #" + utostr(getOpcode()) + ">>";
70    }
71    if (G) {
72      const TargetLowering &TLI = G->getTargetLoweringInfo();
73      const char *Name = TLI.getTargetNodeName(getOpcode());
74      if (Name) return Name;
75      return "<<Unknown Target Node #" + utostr(getOpcode()) + ">>";
76    }
77    return "<<Unknown Node #" + utostr(getOpcode()) + ">>";
78
79#ifndef NDEBUG
80  case ISD::DELETED_NODE:               return "<<Deleted Node!>>";
81#endif
82  case ISD::PREFETCH:                   return "Prefetch";
83  case ISD::ATOMIC_FENCE:               return "AtomicFence";
84  case ISD::ATOMIC_CMP_SWAP:            return "AtomicCmpSwap";
85  case ISD::ATOMIC_CMP_SWAP_WITH_SUCCESS: return "AtomicCmpSwapWithSuccess";
86  case ISD::ATOMIC_SWAP:                return "AtomicSwap";
87  case ISD::ATOMIC_LOAD_ADD:            return "AtomicLoadAdd";
88  case ISD::ATOMIC_LOAD_SUB:            return "AtomicLoadSub";
89  case ISD::ATOMIC_LOAD_AND:            return "AtomicLoadAnd";
90  case ISD::ATOMIC_LOAD_CLR:            return "AtomicLoadClr";
91  case ISD::ATOMIC_LOAD_OR:             return "AtomicLoadOr";
92  case ISD::ATOMIC_LOAD_XOR:            return "AtomicLoadXor";
93  case ISD::ATOMIC_LOAD_NAND:           return "AtomicLoadNand";
94  case ISD::ATOMIC_LOAD_MIN:            return "AtomicLoadMin";
95  case ISD::ATOMIC_LOAD_MAX:            return "AtomicLoadMax";
96  case ISD::ATOMIC_LOAD_UMIN:           return "AtomicLoadUMin";
97  case ISD::ATOMIC_LOAD_UMAX:           return "AtomicLoadUMax";
98  case ISD::ATOMIC_LOAD_FADD:           return "AtomicLoadFAdd";
99  case ISD::ATOMIC_LOAD:                return "AtomicLoad";
100  case ISD::ATOMIC_STORE:               return "AtomicStore";
101  case ISD::PCMARKER:                   return "PCMarker";
102  case ISD::READCYCLECOUNTER:           return "ReadCycleCounter";
103  case ISD::SRCVALUE:                   return "SrcValue";
104  case ISD::MDNODE_SDNODE:              return "MDNode";
105  case ISD::EntryToken:                 return "EntryToken";
106  case ISD::TokenFactor:                return "TokenFactor";
107  case ISD::AssertSext:                 return "AssertSext";
108  case ISD::AssertZext:                 return "AssertZext";
109
110  case ISD::BasicBlock:                 return "BasicBlock";
111  case ISD::VALUETYPE:                  return "ValueType";
112  case ISD::Register:                   return "Register";
113  case ISD::RegisterMask:               return "RegisterMask";
114  case ISD::Constant:
115    if (cast<ConstantSDNode>(this)->isOpaque())
116      return "OpaqueConstant";
117    return "Constant";
118  case ISD::ConstantFP:                 return "ConstantFP";
119  case ISD::GlobalAddress:              return "GlobalAddress";
120  case ISD::GlobalTLSAddress:           return "GlobalTLSAddress";
121  case ISD::FrameIndex:                 return "FrameIndex";
122  case ISD::JumpTable:                  return "JumpTable";
123  case ISD::GLOBAL_OFFSET_TABLE:        return "GLOBAL_OFFSET_TABLE";
124  case ISD::RETURNADDR:                 return "RETURNADDR";
125  case ISD::ADDROFRETURNADDR:           return "ADDROFRETURNADDR";
126  case ISD::FRAMEADDR:                  return "FRAMEADDR";
127  case ISD::SPONENTRY:                  return "SPONENTRY";
128  case ISD::LOCAL_RECOVER:              return "LOCAL_RECOVER";
129  case ISD::READ_REGISTER:              return "READ_REGISTER";
130  case ISD::WRITE_REGISTER:             return "WRITE_REGISTER";
131  case ISD::FRAME_TO_ARGS_OFFSET:       return "FRAME_TO_ARGS_OFFSET";
132  case ISD::EH_DWARF_CFA:               return "EH_DWARF_CFA";
133  case ISD::EH_RETURN:                  return "EH_RETURN";
134  case ISD::EH_SJLJ_SETJMP:             return "EH_SJLJ_SETJMP";
135  case ISD::EH_SJLJ_LONGJMP:            return "EH_SJLJ_LONGJMP";
136  case ISD::EH_SJLJ_SETUP_DISPATCH:     return "EH_SJLJ_SETUP_DISPATCH";
137  case ISD::ConstantPool:               return "ConstantPool";
138  case ISD::TargetIndex:                return "TargetIndex";
139  case ISD::ExternalSymbol:             return "ExternalSymbol";
140  case ISD::BlockAddress:               return "BlockAddress";
141  case ISD::INTRINSIC_WO_CHAIN:
142  case ISD::INTRINSIC_VOID:
143  case ISD::INTRINSIC_W_CHAIN: {
144    unsigned OpNo = getOpcode() == ISD::INTRINSIC_WO_CHAIN ? 0 : 1;
145    unsigned IID = cast<ConstantSDNode>(getOperand(OpNo))->getZExtValue();
146    if (IID < Intrinsic::num_intrinsics)
147      return Intrinsic::getName((Intrinsic::ID)IID, None);
148    else if (!G)
149      return "Unknown intrinsic";
150    else if (const TargetIntrinsicInfo *TII = G->getTarget().getIntrinsicInfo())
151      return TII->getName(IID);
152    llvm_unreachable("Invalid intrinsic ID");
153  }
154
155  case ISD::BUILD_VECTOR:               return "BUILD_VECTOR";
156  case ISD::TargetConstant:
157    if (cast<ConstantSDNode>(this)->isOpaque())
158      return "OpaqueTargetConstant";
159    return "TargetConstant";
160  case ISD::TargetConstantFP:           return "TargetConstantFP";
161  case ISD::TargetGlobalAddress:        return "TargetGlobalAddress";
162  case ISD::TargetGlobalTLSAddress:     return "TargetGlobalTLSAddress";
163  case ISD::TargetFrameIndex:           return "TargetFrameIndex";
164  case ISD::TargetJumpTable:            return "TargetJumpTable";
165  case ISD::TargetConstantPool:         return "TargetConstantPool";
166  case ISD::TargetExternalSymbol:       return "TargetExternalSymbol";
167  case ISD::MCSymbol:                   return "MCSymbol";
168  case ISD::TargetBlockAddress:         return "TargetBlockAddress";
169
170  case ISD::CopyToReg:                  return "CopyToReg";
171  case ISD::CopyFromReg:                return "CopyFromReg";
172  case ISD::UNDEF:                      return "undef";
173  case ISD::MERGE_VALUES:               return "merge_values";
174  case ISD::INLINEASM:                  return "inlineasm";
175  case ISD::INLINEASM_BR:               return "inlineasm_br";
176  case ISD::EH_LABEL:                   return "eh_label";
177  case ISD::ANNOTATION_LABEL:           return "annotation_label";
178  case ISD::HANDLENODE:                 return "handlenode";
179
180  // Unary operators
181  case ISD::FABS:                       return "fabs";
182  case ISD::FMINNUM:                    return "fminnum";
183  case ISD::STRICT_FMINNUM:             return "strict_fminnum";
184  case ISD::FMAXNUM:                    return "fmaxnum";
185  case ISD::STRICT_FMAXNUM:             return "strict_fmaxnum";
186  case ISD::FMINNUM_IEEE:               return "fminnum_ieee";
187  case ISD::FMAXNUM_IEEE:               return "fmaxnum_ieee";
188  case ISD::FMINIMUM:                   return "fminimum";
189  case ISD::STRICT_FMINIMUM:            return "strict_fminimum";
190  case ISD::FMAXIMUM:                   return "fmaximum";
191  case ISD::STRICT_FMAXIMUM:            return "strict_fmaximum";
192  case ISD::FNEG:                       return "fneg";
193  case ISD::FSQRT:                      return "fsqrt";
194  case ISD::STRICT_FSQRT:               return "strict_fsqrt";
195  case ISD::FCBRT:                      return "fcbrt";
196  case ISD::FSIN:                       return "fsin";
197  case ISD::STRICT_FSIN:                return "strict_fsin";
198  case ISD::FCOS:                       return "fcos";
199  case ISD::STRICT_FCOS:                return "strict_fcos";
200  case ISD::FSINCOS:                    return "fsincos";
201  case ISD::FTRUNC:                     return "ftrunc";
202  case ISD::STRICT_FTRUNC:              return "strict_ftrunc";
203  case ISD::FFLOOR:                     return "ffloor";
204  case ISD::STRICT_FFLOOR:              return "strict_ffloor";
205  case ISD::FCEIL:                      return "fceil";
206  case ISD::STRICT_FCEIL:               return "strict_fceil";
207  case ISD::FRINT:                      return "frint";
208  case ISD::STRICT_FRINT:               return "strict_frint";
209  case ISD::FNEARBYINT:                 return "fnearbyint";
210  case ISD::STRICT_FNEARBYINT:          return "strict_fnearbyint";
211  case ISD::FROUND:                     return "fround";
212  case ISD::STRICT_FROUND:              return "strict_fround";
213  case ISD::FEXP:                       return "fexp";
214  case ISD::STRICT_FEXP:                return "strict_fexp";
215  case ISD::FEXP2:                      return "fexp2";
216  case ISD::STRICT_FEXP2:               return "strict_fexp2";
217  case ISD::FLOG:                       return "flog";
218  case ISD::STRICT_FLOG:                return "strict_flog";
219  case ISD::FLOG2:                      return "flog2";
220  case ISD::STRICT_FLOG2:               return "strict_flog2";
221  case ISD::FLOG10:                     return "flog10";
222  case ISD::STRICT_FLOG10:              return "strict_flog10";
223
224  // Binary operators
225  case ISD::ADD:                        return "add";
226  case ISD::SUB:                        return "sub";
227  case ISD::MUL:                        return "mul";
228  case ISD::MULHU:                      return "mulhu";
229  case ISD::MULHS:                      return "mulhs";
230  case ISD::SDIV:                       return "sdiv";
231  case ISD::UDIV:                       return "udiv";
232  case ISD::SREM:                       return "srem";
233  case ISD::UREM:                       return "urem";
234  case ISD::SMUL_LOHI:                  return "smul_lohi";
235  case ISD::UMUL_LOHI:                  return "umul_lohi";
236  case ISD::SDIVREM:                    return "sdivrem";
237  case ISD::UDIVREM:                    return "udivrem";
238  case ISD::AND:                        return "and";
239  case ISD::OR:                         return "or";
240  case ISD::XOR:                        return "xor";
241  case ISD::SHL:                        return "shl";
242  case ISD::SRA:                        return "sra";
243  case ISD::SRL:                        return "srl";
244  case ISD::ROTL:                       return "rotl";
245  case ISD::ROTR:                       return "rotr";
246  case ISD::FSHL:                       return "fshl";
247  case ISD::FSHR:                       return "fshr";
248  case ISD::FADD:                       return "fadd";
249  case ISD::STRICT_FADD:                return "strict_fadd";
250  case ISD::FSUB:                       return "fsub";
251  case ISD::STRICT_FSUB:                return "strict_fsub";
252  case ISD::FMUL:                       return "fmul";
253  case ISD::STRICT_FMUL:                return "strict_fmul";
254  case ISD::FDIV:                       return "fdiv";
255  case ISD::STRICT_FDIV:                return "strict_fdiv";
256  case ISD::FMA:                        return "fma";
257  case ISD::STRICT_FMA:                 return "strict_fma";
258  case ISD::FMAD:                       return "fmad";
259  case ISD::FREM:                       return "frem";
260  case ISD::STRICT_FREM:                return "strict_frem";
261  case ISD::FCOPYSIGN:                  return "fcopysign";
262  case ISD::FGETSIGN:                   return "fgetsign";
263  case ISD::FCANONICALIZE:              return "fcanonicalize";
264  case ISD::FPOW:                       return "fpow";
265  case ISD::STRICT_FPOW:                return "strict_fpow";
266  case ISD::SMIN:                       return "smin";
267  case ISD::SMAX:                       return "smax";
268  case ISD::UMIN:                       return "umin";
269  case ISD::UMAX:                       return "umax";
270
271  case ISD::FPOWI:                      return "fpowi";
272  case ISD::STRICT_FPOWI:               return "strict_fpowi";
273  case ISD::SETCC:                      return "setcc";
274  case ISD::SETCCCARRY:                 return "setcccarry";
275  case ISD::STRICT_FSETCC:              return "strict_fsetcc";
276  case ISD::STRICT_FSETCCS:             return "strict_fsetccs";
277  case ISD::SELECT:                     return "select";
278  case ISD::VSELECT:                    return "vselect";
279  case ISD::SELECT_CC:                  return "select_cc";
280  case ISD::INSERT_VECTOR_ELT:          return "insert_vector_elt";
281  case ISD::EXTRACT_VECTOR_ELT:         return "extract_vector_elt";
282  case ISD::CONCAT_VECTORS:             return "concat_vectors";
283  case ISD::INSERT_SUBVECTOR:           return "insert_subvector";
284  case ISD::EXTRACT_SUBVECTOR:          return "extract_subvector";
285  case ISD::SCALAR_TO_VECTOR:           return "scalar_to_vector";
286  case ISD::VECTOR_SHUFFLE:             return "vector_shuffle";
287  case ISD::SPLAT_VECTOR:               return "splat_vector";
288  case ISD::CARRY_FALSE:                return "carry_false";
289  case ISD::ADDC:                       return "addc";
290  case ISD::ADDE:                       return "adde";
291  case ISD::ADDCARRY:                   return "addcarry";
292  case ISD::SADDO:                      return "saddo";
293  case ISD::UADDO:                      return "uaddo";
294  case ISD::SSUBO:                      return "ssubo";
295  case ISD::USUBO:                      return "usubo";
296  case ISD::SMULO:                      return "smulo";
297  case ISD::UMULO:                      return "umulo";
298  case ISD::SUBC:                       return "subc";
299  case ISD::SUBE:                       return "sube";
300  case ISD::SUBCARRY:                   return "subcarry";
301  case ISD::SHL_PARTS:                  return "shl_parts";
302  case ISD::SRA_PARTS:                  return "sra_parts";
303  case ISD::SRL_PARTS:                  return "srl_parts";
304
305  case ISD::SADDSAT:                    return "saddsat";
306  case ISD::UADDSAT:                    return "uaddsat";
307  case ISD::SSUBSAT:                    return "ssubsat";
308  case ISD::USUBSAT:                    return "usubsat";
309
310  case ISD::SMULFIX:                    return "smulfix";
311  case ISD::SMULFIXSAT:                 return "smulfixsat";
312  case ISD::UMULFIX:                    return "umulfix";
313  case ISD::UMULFIXSAT:                 return "umulfixsat";
314
315  case ISD::SDIVFIX:                    return "sdivfix";
316  case ISD::UDIVFIX:                    return "udivfix";
317
318  // Conversion operators.
319  case ISD::SIGN_EXTEND:                return "sign_extend";
320  case ISD::ZERO_EXTEND:                return "zero_extend";
321  case ISD::ANY_EXTEND:                 return "any_extend";
322  case ISD::SIGN_EXTEND_INREG:          return "sign_extend_inreg";
323  case ISD::ANY_EXTEND_VECTOR_INREG:    return "any_extend_vector_inreg";
324  case ISD::SIGN_EXTEND_VECTOR_INREG:   return "sign_extend_vector_inreg";
325  case ISD::ZERO_EXTEND_VECTOR_INREG:   return "zero_extend_vector_inreg";
326  case ISD::TRUNCATE:                   return "truncate";
327  case ISD::FP_ROUND:                   return "fp_round";
328  case ISD::STRICT_FP_ROUND:            return "strict_fp_round";
329  case ISD::FLT_ROUNDS_:                return "flt_rounds";
330  case ISD::FP_EXTEND:                  return "fp_extend";
331  case ISD::STRICT_FP_EXTEND:           return "strict_fp_extend";
332
333  case ISD::SINT_TO_FP:                 return "sint_to_fp";
334  case ISD::STRICT_SINT_TO_FP:          return "strict_sint_to_fp";
335  case ISD::UINT_TO_FP:                 return "uint_to_fp";
336  case ISD::STRICT_UINT_TO_FP:          return "strict_uint_to_fp";
337  case ISD::FP_TO_SINT:                 return "fp_to_sint";
338  case ISD::STRICT_FP_TO_SINT:          return "strict_fp_to_sint";
339  case ISD::FP_TO_UINT:                 return "fp_to_uint";
340  case ISD::STRICT_FP_TO_UINT:          return "strict_fp_to_uint";
341  case ISD::BITCAST:                    return "bitcast";
342  case ISD::ADDRSPACECAST:              return "addrspacecast";
343  case ISD::FP16_TO_FP:                 return "fp16_to_fp";
344  case ISD::FP_TO_FP16:                 return "fp_to_fp16";
345  case ISD::LROUND:                     return "lround";
346  case ISD::STRICT_LROUND:              return "strict_lround";
347  case ISD::LLROUND:                    return "llround";
348  case ISD::STRICT_LLROUND:             return "strict_llround";
349  case ISD::LRINT:                      return "lrint";
350  case ISD::STRICT_LRINT:               return "strict_lrint";
351  case ISD::LLRINT:                     return "llrint";
352  case ISD::STRICT_LLRINT:              return "strict_llrint";
353
354    // Control flow instructions
355  case ISD::BR:                         return "br";
356  case ISD::BRIND:                      return "brind";
357  case ISD::BR_JT:                      return "br_jt";
358  case ISD::BRCOND:                     return "brcond";
359  case ISD::BR_CC:                      return "br_cc";
360  case ISD::CALLSEQ_START:              return "callseq_start";
361  case ISD::CALLSEQ_END:                return "callseq_end";
362
363    // EH instructions
364  case ISD::CATCHRET:                   return "catchret";
365  case ISD::CLEANUPRET:                 return "cleanupret";
366
367    // Other operators
368  case ISD::LOAD:                       return "load";
369  case ISD::STORE:                      return "store";
370  case ISD::MLOAD:                      return "masked_load";
371  case ISD::MSTORE:                     return "masked_store";
372  case ISD::MGATHER:                    return "masked_gather";
373  case ISD::MSCATTER:                   return "masked_scatter";
374  case ISD::VAARG:                      return "vaarg";
375  case ISD::VACOPY:                     return "vacopy";
376  case ISD::VAEND:                      return "vaend";
377  case ISD::VASTART:                    return "vastart";
378  case ISD::DYNAMIC_STACKALLOC:         return "dynamic_stackalloc";
379  case ISD::EXTRACT_ELEMENT:            return "extract_element";
380  case ISD::BUILD_PAIR:                 return "build_pair";
381  case ISD::STACKSAVE:                  return "stacksave";
382  case ISD::STACKRESTORE:               return "stackrestore";
383  case ISD::TRAP:                       return "trap";
384  case ISD::DEBUGTRAP:                  return "debugtrap";
385  case ISD::LIFETIME_START:             return "lifetime.start";
386  case ISD::LIFETIME_END:               return "lifetime.end";
387  case ISD::GC_TRANSITION_START:        return "gc_transition.start";
388  case ISD::GC_TRANSITION_END:          return "gc_transition.end";
389  case ISD::GET_DYNAMIC_AREA_OFFSET:    return "get.dynamic.area.offset";
390
391  // Bit manipulation
392  case ISD::ABS:                        return "abs";
393  case ISD::BITREVERSE:                 return "bitreverse";
394  case ISD::BSWAP:                      return "bswap";
395  case ISD::CTPOP:                      return "ctpop";
396  case ISD::CTTZ:                       return "cttz";
397  case ISD::CTTZ_ZERO_UNDEF:            return "cttz_zero_undef";
398  case ISD::CTLZ:                       return "ctlz";
399  case ISD::CTLZ_ZERO_UNDEF:            return "ctlz_zero_undef";
400
401  // Trampolines
402  case ISD::INIT_TRAMPOLINE:            return "init_trampoline";
403  case ISD::ADJUST_TRAMPOLINE:          return "adjust_trampoline";
404
405  case ISD::CONDCODE:
406    switch (cast<CondCodeSDNode>(this)->get()) {
407    default: llvm_unreachable("Unknown setcc condition!");
408    case ISD::SETOEQ:                   return "setoeq";
409    case ISD::SETOGT:                   return "setogt";
410    case ISD::SETOGE:                   return "setoge";
411    case ISD::SETOLT:                   return "setolt";
412    case ISD::SETOLE:                   return "setole";
413    case ISD::SETONE:                   return "setone";
414
415    case ISD::SETO:                     return "seto";
416    case ISD::SETUO:                    return "setuo";
417    case ISD::SETUEQ:                   return "setueq";
418    case ISD::SETUGT:                   return "setugt";
419    case ISD::SETUGE:                   return "setuge";
420    case ISD::SETULT:                   return "setult";
421    case ISD::SETULE:                   return "setule";
422    case ISD::SETUNE:                   return "setune";
423
424    case ISD::SETEQ:                    return "seteq";
425    case ISD::SETGT:                    return "setgt";
426    case ISD::SETGE:                    return "setge";
427    case ISD::SETLT:                    return "setlt";
428    case ISD::SETLE:                    return "setle";
429    case ISD::SETNE:                    return "setne";
430
431    case ISD::SETTRUE:                  return "settrue";
432    case ISD::SETTRUE2:                 return "settrue2";
433    case ISD::SETFALSE:                 return "setfalse";
434    case ISD::SETFALSE2:                return "setfalse2";
435    }
436  case ISD::VECREDUCE_FADD:             return "vecreduce_fadd";
437  case ISD::VECREDUCE_STRICT_FADD:      return "vecreduce_strict_fadd";
438  case ISD::VECREDUCE_FMUL:             return "vecreduce_fmul";
439  case ISD::VECREDUCE_STRICT_FMUL:      return "vecreduce_strict_fmul";
440  case ISD::VECREDUCE_ADD:              return "vecreduce_add";
441  case ISD::VECREDUCE_MUL:              return "vecreduce_mul";
442  case ISD::VECREDUCE_AND:              return "vecreduce_and";
443  case ISD::VECREDUCE_OR:               return "vecreduce_or";
444  case ISD::VECREDUCE_XOR:              return "vecreduce_xor";
445  case ISD::VECREDUCE_SMAX:             return "vecreduce_smax";
446  case ISD::VECREDUCE_SMIN:             return "vecreduce_smin";
447  case ISD::VECREDUCE_UMAX:             return "vecreduce_umax";
448  case ISD::VECREDUCE_UMIN:             return "vecreduce_umin";
449  case ISD::VECREDUCE_FMAX:             return "vecreduce_fmax";
450  case ISD::VECREDUCE_FMIN:             return "vecreduce_fmin";
451  }
452}
453
454const char *SDNode::getIndexedModeName(ISD::MemIndexedMode AM) {
455  switch (AM) {
456  default:              return "";
457  case ISD::PRE_INC:    return "<pre-inc>";
458  case ISD::PRE_DEC:    return "<pre-dec>";
459  case ISD::POST_INC:   return "<post-inc>";
460  case ISD::POST_DEC:   return "<post-dec>";
461  }
462}
463
464static Printable PrintNodeId(const SDNode &Node) {
465  return Printable([&Node](raw_ostream &OS) {
466#ifndef NDEBUG
467    OS << 't' << Node.PersistentId;
468#else
469    OS << (const void*)&Node;
470#endif
471  });
472}
473
474// Print the MMO with more information from the SelectionDAG.
475static void printMemOperand(raw_ostream &OS, const MachineMemOperand &MMO,
476                            const MachineFunction *MF, const Module *M,
477                            const MachineFrameInfo *MFI,
478                            const TargetInstrInfo *TII, LLVMContext &Ctx) {
479  ModuleSlotTracker MST(M);
480  if (MF)
481    MST.incorporateFunction(MF->getFunction());
482  SmallVector<StringRef, 0> SSNs;
483  MMO.print(OS, MST, SSNs, Ctx, MFI, TII);
484}
485
486static void printMemOperand(raw_ostream &OS, const MachineMemOperand &MMO,
487                            const SelectionDAG *G) {
488  if (G) {
489    const MachineFunction *MF = &G->getMachineFunction();
490    return printMemOperand(OS, MMO, MF, MF->getFunction().getParent(),
491                           &MF->getFrameInfo(), G->getSubtarget().getInstrInfo(),
492                           *G->getContext());
493  } else {
494    LLVMContext Ctx;
495    return printMemOperand(OS, MMO, /*MF=*/nullptr, /*M=*/nullptr,
496                           /*MFI=*/nullptr, /*TII=*/nullptr, Ctx);
497  }
498}
499
500#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
501LLVM_DUMP_METHOD void SDNode::dump() const { dump(nullptr); }
502
503LLVM_DUMP_METHOD void SDNode::dump(const SelectionDAG *G) const {
504  print(dbgs(), G);
505  dbgs() << '\n';
506}
507#endif
508
509void SDNode::print_types(raw_ostream &OS, const SelectionDAG *G) const {
510  for (unsigned i = 0, e = getNumValues(); i != e; ++i) {
511    if (i) OS << ",";
512    if (getValueType(i) == MVT::Other)
513      OS << "ch";
514    else
515      OS << getValueType(i).getEVTString();
516  }
517}
518
519void SDNode::print_details(raw_ostream &OS, const SelectionDAG *G) const {
520  if (getFlags().hasNoUnsignedWrap())
521    OS << " nuw";
522
523  if (getFlags().hasNoSignedWrap())
524    OS << " nsw";
525
526  if (getFlags().hasExact())
527    OS << " exact";
528
529  if (getFlags().hasNoNaNs())
530    OS << " nnan";
531
532  if (getFlags().hasNoInfs())
533    OS << " ninf";
534
535  if (getFlags().hasNoSignedZeros())
536    OS << " nsz";
537
538  if (getFlags().hasAllowReciprocal())
539    OS << " arcp";
540
541  if (getFlags().hasAllowContract())
542    OS << " contract";
543
544  if (getFlags().hasApproximateFuncs())
545    OS << " afn";
546
547  if (getFlags().hasAllowReassociation())
548    OS << " reassoc";
549
550  if (getFlags().hasVectorReduction())
551    OS << " vector-reduction";
552
553  if (getFlags().hasNoFPExcept())
554    OS << " nofpexcept";
555
556  if (const MachineSDNode *MN = dyn_cast<MachineSDNode>(this)) {
557    if (!MN->memoperands_empty()) {
558      OS << "<";
559      OS << "Mem:";
560      for (MachineSDNode::mmo_iterator i = MN->memoperands_begin(),
561           e = MN->memoperands_end(); i != e; ++i) {
562        printMemOperand(OS, **i, G);
563        if (std::next(i) != e)
564          OS << " ";
565      }
566      OS << ">";
567    }
568  } else if (const ShuffleVectorSDNode *SVN =
569               dyn_cast<ShuffleVectorSDNode>(this)) {
570    OS << "<";
571    for (unsigned i = 0, e = ValueList[0].getVectorNumElements(); i != e; ++i) {
572      int Idx = SVN->getMaskElt(i);
573      if (i) OS << ",";
574      if (Idx < 0)
575        OS << "u";
576      else
577        OS << Idx;
578    }
579    OS << ">";
580  } else if (const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(this)) {
581    OS << '<' << CSDN->getAPIntValue() << '>';
582  } else if (const ConstantFPSDNode *CSDN = dyn_cast<ConstantFPSDNode>(this)) {
583    if (&CSDN->getValueAPF().getSemantics() == &APFloat::IEEEsingle())
584      OS << '<' << CSDN->getValueAPF().convertToFloat() << '>';
585    else if (&CSDN->getValueAPF().getSemantics() == &APFloat::IEEEdouble())
586      OS << '<' << CSDN->getValueAPF().convertToDouble() << '>';
587    else {
588      OS << "<APFloat(";
589      CSDN->getValueAPF().bitcastToAPInt().print(OS, false);
590      OS << ")>";
591    }
592  } else if (const GlobalAddressSDNode *GADN =
593             dyn_cast<GlobalAddressSDNode>(this)) {
594    int64_t offset = GADN->getOffset();
595    OS << '<';
596    GADN->getGlobal()->printAsOperand(OS);
597    OS << '>';
598    if (offset > 0)
599      OS << " + " << offset;
600    else
601      OS << " " << offset;
602    if (unsigned int TF = GADN->getTargetFlags())
603      OS << " [TF=" << TF << ']';
604  } else if (const FrameIndexSDNode *FIDN = dyn_cast<FrameIndexSDNode>(this)) {
605    OS << "<" << FIDN->getIndex() << ">";
606  } else if (const JumpTableSDNode *JTDN = dyn_cast<JumpTableSDNode>(this)) {
607    OS << "<" << JTDN->getIndex() << ">";
608    if (unsigned int TF = JTDN->getTargetFlags())
609      OS << " [TF=" << TF << ']';
610  } else if (const ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(this)){
611    int offset = CP->getOffset();
612    if (CP->isMachineConstantPoolEntry())
613      OS << "<" << *CP->getMachineCPVal() << ">";
614    else
615      OS << "<" << *CP->getConstVal() << ">";
616    if (offset > 0)
617      OS << " + " << offset;
618    else
619      OS << " " << offset;
620    if (unsigned int TF = CP->getTargetFlags())
621      OS << " [TF=" << TF << ']';
622  } else if (const TargetIndexSDNode *TI = dyn_cast<TargetIndexSDNode>(this)) {
623    OS << "<" << TI->getIndex() << '+' << TI->getOffset() << ">";
624    if (unsigned TF = TI->getTargetFlags())
625      OS << " [TF=" << TF << ']';
626  } else if (const BasicBlockSDNode *BBDN = dyn_cast<BasicBlockSDNode>(this)) {
627    OS << "<";
628    const Value *LBB = (const Value*)BBDN->getBasicBlock()->getBasicBlock();
629    if (LBB)
630      OS << LBB->getName() << " ";
631    OS << (const void*)BBDN->getBasicBlock() << ">";
632  } else if (const RegisterSDNode *R = dyn_cast<RegisterSDNode>(this)) {
633    OS << ' ' << printReg(R->getReg(),
634                          G ? G->getSubtarget().getRegisterInfo() : nullptr);
635  } else if (const ExternalSymbolSDNode *ES =
636             dyn_cast<ExternalSymbolSDNode>(this)) {
637    OS << "'" << ES->getSymbol() << "'";
638    if (unsigned int TF = ES->getTargetFlags())
639      OS << " [TF=" << TF << ']';
640  } else if (const SrcValueSDNode *M = dyn_cast<SrcValueSDNode>(this)) {
641    if (M->getValue())
642      OS << "<" << M->getValue() << ">";
643    else
644      OS << "<null>";
645  } else if (const MDNodeSDNode *MD = dyn_cast<MDNodeSDNode>(this)) {
646    if (MD->getMD())
647      OS << "<" << MD->getMD() << ">";
648    else
649      OS << "<null>";
650  } else if (const VTSDNode *N = dyn_cast<VTSDNode>(this)) {
651    OS << ":" << N->getVT().getEVTString();
652  }
653  else if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(this)) {
654    OS << "<";
655
656    printMemOperand(OS, *LD->getMemOperand(), G);
657
658    bool doExt = true;
659    switch (LD->getExtensionType()) {
660    default: doExt = false; break;
661    case ISD::EXTLOAD:  OS << ", anyext"; break;
662    case ISD::SEXTLOAD: OS << ", sext"; break;
663    case ISD::ZEXTLOAD: OS << ", zext"; break;
664    }
665    if (doExt)
666      OS << " from " << LD->getMemoryVT().getEVTString();
667
668    const char *AM = getIndexedModeName(LD->getAddressingMode());
669    if (*AM)
670      OS << ", " << AM;
671
672    OS << ">";
673  } else if (const StoreSDNode *ST = dyn_cast<StoreSDNode>(this)) {
674    OS << "<";
675    printMemOperand(OS, *ST->getMemOperand(), G);
676
677    if (ST->isTruncatingStore())
678      OS << ", trunc to " << ST->getMemoryVT().getEVTString();
679
680    const char *AM = getIndexedModeName(ST->getAddressingMode());
681    if (*AM)
682      OS << ", " << AM;
683
684    OS << ">";
685  } else if (const MaskedLoadSDNode *MLd = dyn_cast<MaskedLoadSDNode>(this)) {
686    OS << "<";
687
688    printMemOperand(OS, *MLd->getMemOperand(), G);
689
690    bool doExt = true;
691    switch (MLd->getExtensionType()) {
692    default: doExt = false; break;
693    case ISD::EXTLOAD:  OS << ", anyext"; break;
694    case ISD::SEXTLOAD: OS << ", sext"; break;
695    case ISD::ZEXTLOAD: OS << ", zext"; break;
696    }
697    if (doExt)
698      OS << " from " << MLd->getMemoryVT().getEVTString();
699
700    const char *AM = getIndexedModeName(MLd->getAddressingMode());
701    if (*AM)
702      OS << ", " << AM;
703
704    if (MLd->isExpandingLoad())
705      OS << ", expanding";
706
707    OS << ">";
708  } else if (const MaskedStoreSDNode *MSt = dyn_cast<MaskedStoreSDNode>(this)) {
709    OS << "<";
710    printMemOperand(OS, *MSt->getMemOperand(), G);
711
712    if (MSt->isTruncatingStore())
713      OS << ", trunc to " << MSt->getMemoryVT().getEVTString();
714
715    const char *AM = getIndexedModeName(MSt->getAddressingMode());
716    if (*AM)
717      OS << ", " << AM;
718
719    if (MSt->isCompressingStore())
720      OS << ", compressing";
721
722    OS << ">";
723  } else if (const MemSDNode* M = dyn_cast<MemSDNode>(this)) {
724    OS << "<";
725    printMemOperand(OS, *M->getMemOperand(), G);
726    OS << ">";
727  } else if (const BlockAddressSDNode *BA =
728               dyn_cast<BlockAddressSDNode>(this)) {
729    int64_t offset = BA->getOffset();
730    OS << "<";
731    BA->getBlockAddress()->getFunction()->printAsOperand(OS, false);
732    OS << ", ";
733    BA->getBlockAddress()->getBasicBlock()->printAsOperand(OS, false);
734    OS << ">";
735    if (offset > 0)
736      OS << " + " << offset;
737    else
738      OS << " " << offset;
739    if (unsigned int TF = BA->getTargetFlags())
740      OS << " [TF=" << TF << ']';
741  } else if (const AddrSpaceCastSDNode *ASC =
742               dyn_cast<AddrSpaceCastSDNode>(this)) {
743    OS << '['
744       << ASC->getSrcAddressSpace()
745       << " -> "
746       << ASC->getDestAddressSpace()
747       << ']';
748  } else if (const LifetimeSDNode *LN = dyn_cast<LifetimeSDNode>(this)) {
749    if (LN->hasOffset())
750      OS << "<" << LN->getOffset() << " to " << LN->getOffset() + LN->getSize() << ">";
751  }
752
753  if (VerboseDAGDumping) {
754    if (unsigned Order = getIROrder())
755        OS << " [ORD=" << Order << ']';
756
757    if (getNodeId() != -1)
758      OS << " [ID=" << getNodeId() << ']';
759    if (!(isa<ConstantSDNode>(this) || (isa<ConstantFPSDNode>(this))))
760      OS << " # D:" << isDivergent();
761
762    if (G && !G->GetDbgValues(this).empty()) {
763      OS << " [NoOfDbgValues=" << G->GetDbgValues(this).size() << ']';
764      for (SDDbgValue *Dbg : G->GetDbgValues(this))
765        if (!Dbg->isInvalidated())
766          Dbg->print(OS);
767    } else if (getHasDebugValue())
768      OS << " [NoOfDbgValues>0]";
769  }
770}
771
772LLVM_DUMP_METHOD void SDDbgValue::print(raw_ostream &OS) const {
773  OS << " DbgVal(Order=" << getOrder() << ')';
774  if (isInvalidated()) OS << "(Invalidated)";
775  if (isEmitted()) OS << "(Emitted)";
776  switch (getKind()) {
777  case SDNODE:
778    if (getSDNode())
779      OS << "(SDNODE=" << PrintNodeId(*getSDNode()) << ':' <<  getResNo() << ')';
780    else
781      OS << "(SDNODE)";
782    break;
783  case CONST:
784    OS << "(CONST)";
785    break;
786  case FRAMEIX:
787    OS << "(FRAMEIX=" << getFrameIx() << ')';
788    break;
789  case VREG:
790    OS << "(VREG=" << getVReg() << ')';
791    break;
792  }
793  if (isIndirect()) OS << "(Indirect)";
794  OS << ":\"" << Var->getName() << '"';
795#ifndef NDEBUG
796  if (Expr->getNumElements())
797    Expr->dump();
798#endif
799}
800
801#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
802LLVM_DUMP_METHOD void SDDbgValue::dump() const {
803  if (isInvalidated())
804    return;
805  print(dbgs());
806  dbgs() << "\n";
807}
808#endif
809
810/// Return true if this node is so simple that we should just print it inline
811/// if it appears as an operand.
812static bool shouldPrintInline(const SDNode &Node, const SelectionDAG *G) {
813  // Avoid lots of cluttering when inline printing nodes with associated
814  // DbgValues in verbose mode.
815  if (VerboseDAGDumping && G && !G->GetDbgValues(&Node).empty())
816    return false;
817  if (Node.getOpcode() == ISD::EntryToken)
818    return false;
819  return Node.getNumOperands() == 0;
820}
821
822#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
823static void DumpNodes(const SDNode *N, unsigned indent, const SelectionDAG *G) {
824  for (const SDValue &Op : N->op_values()) {
825    if (shouldPrintInline(*Op.getNode(), G))
826      continue;
827    if (Op.getNode()->hasOneUse())
828      DumpNodes(Op.getNode(), indent+2, G);
829  }
830
831  dbgs().indent(indent);
832  N->dump(G);
833}
834
835LLVM_DUMP_METHOD void SelectionDAG::dump() const {
836  dbgs() << "SelectionDAG has " << AllNodes.size() << " nodes:\n";
837
838  for (allnodes_const_iterator I = allnodes_begin(), E = allnodes_end();
839       I != E; ++I) {
840    const SDNode *N = &*I;
841    if (!N->hasOneUse() && N != getRoot().getNode() &&
842        (!shouldPrintInline(*N, this) || N->use_empty()))
843      DumpNodes(N, 2, this);
844  }
845
846  if (getRoot().getNode()) DumpNodes(getRoot().getNode(), 2, this);
847  dbgs() << "\n";
848
849  if (VerboseDAGDumping) {
850    if (DbgBegin() != DbgEnd())
851      dbgs() << "SDDbgValues:\n";
852    for (auto *Dbg : make_range(DbgBegin(), DbgEnd()))
853      Dbg->dump();
854    if (ByvalParmDbgBegin() != ByvalParmDbgEnd())
855      dbgs() << "Byval SDDbgValues:\n";
856    for (auto *Dbg : make_range(ByvalParmDbgBegin(), ByvalParmDbgEnd()))
857      Dbg->dump();
858  }
859  dbgs() << "\n";
860}
861#endif
862
863void SDNode::printr(raw_ostream &OS, const SelectionDAG *G) const {
864  OS << PrintNodeId(*this) << ": ";
865  print_types(OS, G);
866  OS << " = " << getOperationName(G);
867  print_details(OS, G);
868}
869
870static bool printOperand(raw_ostream &OS, const SelectionDAG *G,
871                         const SDValue Value) {
872  if (!Value.getNode()) {
873    OS << "<null>";
874    return false;
875  } else if (shouldPrintInline(*Value.getNode(), G)) {
876    OS << Value->getOperationName(G) << ':';
877    Value->print_types(OS, G);
878    Value->print_details(OS, G);
879    return true;
880  } else {
881    OS << PrintNodeId(*Value.getNode());
882    if (unsigned RN = Value.getResNo())
883      OS << ':' << RN;
884    return false;
885  }
886}
887
888#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
889using VisitedSDNodeSet = SmallPtrSet<const SDNode *, 32>;
890
891static void DumpNodesr(raw_ostream &OS, const SDNode *N, unsigned indent,
892                       const SelectionDAG *G, VisitedSDNodeSet &once) {
893  if (!once.insert(N).second) // If we've been here before, return now.
894    return;
895
896  // Dump the current SDNode, but don't end the line yet.
897  OS.indent(indent);
898  N->printr(OS, G);
899
900  // Having printed this SDNode, walk the children:
901  for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
902    if (i) OS << ",";
903    OS << " ";
904
905    const SDValue Op = N->getOperand(i);
906    bool printedInline = printOperand(OS, G, Op);
907    if (printedInline)
908      once.insert(Op.getNode());
909  }
910
911  OS << "\n";
912
913  // Dump children that have grandchildren on their own line(s).
914  for (const SDValue &Op : N->op_values())
915    DumpNodesr(OS, Op.getNode(), indent+2, G, once);
916}
917
918LLVM_DUMP_METHOD void SDNode::dumpr() const {
919  VisitedSDNodeSet once;
920  DumpNodesr(dbgs(), this, 0, nullptr, once);
921}
922
923LLVM_DUMP_METHOD void SDNode::dumpr(const SelectionDAG *G) const {
924  VisitedSDNodeSet once;
925  DumpNodesr(dbgs(), this, 0, G, once);
926}
927#endif
928
929static void printrWithDepthHelper(raw_ostream &OS, const SDNode *N,
930                                  const SelectionDAG *G, unsigned depth,
931                                  unsigned indent) {
932  if (depth == 0)
933    return;
934
935  OS.indent(indent);
936
937  N->print(OS, G);
938
939  if (depth < 1)
940    return;
941
942  for (const SDValue &Op : N->op_values()) {
943    // Don't follow chain operands.
944    if (Op.getValueType() == MVT::Other)
945      continue;
946    OS << '\n';
947    printrWithDepthHelper(OS, Op.getNode(), G, depth-1, indent+2);
948  }
949}
950
951void SDNode::printrWithDepth(raw_ostream &OS, const SelectionDAG *G,
952                            unsigned depth) const {
953  printrWithDepthHelper(OS, this, G, depth, 0);
954}
955
956void SDNode::printrFull(raw_ostream &OS, const SelectionDAG *G) const {
957  // Don't print impossibly deep things.
958  printrWithDepth(OS, G, 10);
959}
960
961#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
962LLVM_DUMP_METHOD
963void SDNode::dumprWithDepth(const SelectionDAG *G, unsigned depth) const {
964  printrWithDepth(dbgs(), G, depth);
965}
966
967LLVM_DUMP_METHOD void SDNode::dumprFull(const SelectionDAG *G) const {
968  // Don't print impossibly deep things.
969  dumprWithDepth(G, 10);
970}
971#endif
972
973void SDNode::print(raw_ostream &OS, const SelectionDAG *G) const {
974  printr(OS, G);
975  for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
976    if (i) OS << ", "; else OS << " ";
977    printOperand(OS, G, getOperand(i));
978  }
979  if (DebugLoc DL = getDebugLoc()) {
980    OS << ", ";
981    DL.print(OS);
982  }
983}
984