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 
52 using namespace llvm;
53 
54 static cl::opt<bool>
55 VerboseDAGDumping("dag-dump-verbose", cl::Hidden,
56                   cl::desc("Display more information when dumping selection "
57                            "DAG nodes."));
58 
59 std::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 std::string(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   case ISD::AssertAlign:                return "AssertAlign";
110 
111   case ISD::BasicBlock:                 return "BasicBlock";
112   case ISD::VALUETYPE:                  return "ValueType";
113   case ISD::Register:                   return "Register";
114   case ISD::RegisterMask:               return "RegisterMask";
115   case ISD::Constant:
116     if (cast<ConstantSDNode>(this)->isOpaque())
117       return "OpaqueConstant";
118     return "Constant";
119   case ISD::ConstantFP:                 return "ConstantFP";
120   case ISD::GlobalAddress:              return "GlobalAddress";
121   case ISD::GlobalTLSAddress:           return "GlobalTLSAddress";
122   case ISD::FrameIndex:                 return "FrameIndex";
123   case ISD::JumpTable:                  return "JumpTable";
124   case ISD::GLOBAL_OFFSET_TABLE:        return "GLOBAL_OFFSET_TABLE";
125   case ISD::RETURNADDR:                 return "RETURNADDR";
126   case ISD::ADDROFRETURNADDR:           return "ADDROFRETURNADDR";
127   case ISD::FRAMEADDR:                  return "FRAMEADDR";
128   case ISD::SPONENTRY:                  return "SPONENTRY";
129   case ISD::LOCAL_RECOVER:              return "LOCAL_RECOVER";
130   case ISD::READ_REGISTER:              return "READ_REGISTER";
131   case ISD::WRITE_REGISTER:             return "WRITE_REGISTER";
132   case ISD::FRAME_TO_ARGS_OFFSET:       return "FRAME_TO_ARGS_OFFSET";
133   case ISD::EH_DWARF_CFA:               return "EH_DWARF_CFA";
134   case ISD::EH_RETURN:                  return "EH_RETURN";
135   case ISD::EH_SJLJ_SETJMP:             return "EH_SJLJ_SETJMP";
136   case ISD::EH_SJLJ_LONGJMP:            return "EH_SJLJ_LONGJMP";
137   case ISD::EH_SJLJ_SETUP_DISPATCH:     return "EH_SJLJ_SETUP_DISPATCH";
138   case ISD::ConstantPool:               return "ConstantPool";
139   case ISD::TargetIndex:                return "TargetIndex";
140   case ISD::ExternalSymbol:             return "ExternalSymbol";
141   case ISD::BlockAddress:               return "BlockAddress";
142   case ISD::INTRINSIC_WO_CHAIN:
143   case ISD::INTRINSIC_VOID:
144   case ISD::INTRINSIC_W_CHAIN: {
145     unsigned OpNo = getOpcode() == ISD::INTRINSIC_WO_CHAIN ? 0 : 1;
146     unsigned IID = cast<ConstantSDNode>(getOperand(OpNo))->getZExtValue();
147     if (IID < Intrinsic::num_intrinsics)
148       return Intrinsic::getName((Intrinsic::ID)IID, None);
149     else if (!G)
150       return "Unknown intrinsic";
151     else if (const TargetIntrinsicInfo *TII = G->getTarget().getIntrinsicInfo())
152       return TII->getName(IID);
153     llvm_unreachable("Invalid intrinsic ID");
154   }
155 
156   case ISD::BUILD_VECTOR:               return "BUILD_VECTOR";
157   case ISD::TargetConstant:
158     if (cast<ConstantSDNode>(this)->isOpaque())
159       return "OpaqueTargetConstant";
160     return "TargetConstant";
161   case ISD::TargetConstantFP:           return "TargetConstantFP";
162   case ISD::TargetGlobalAddress:        return "TargetGlobalAddress";
163   case ISD::TargetGlobalTLSAddress:     return "TargetGlobalTLSAddress";
164   case ISD::TargetFrameIndex:           return "TargetFrameIndex";
165   case ISD::TargetJumpTable:            return "TargetJumpTable";
166   case ISD::TargetConstantPool:         return "TargetConstantPool";
167   case ISD::TargetExternalSymbol:       return "TargetExternalSymbol";
168   case ISD::MCSymbol:                   return "MCSymbol";
169   case ISD::TargetBlockAddress:         return "TargetBlockAddress";
170 
171   case ISD::CopyToReg:                  return "CopyToReg";
172   case ISD::CopyFromReg:                return "CopyFromReg";
173   case ISD::UNDEF:                      return "undef";
174   case ISD::VSCALE:                     return "vscale";
175   case ISD::MERGE_VALUES:               return "merge_values";
176   case ISD::INLINEASM:                  return "inlineasm";
177   case ISD::INLINEASM_BR:               return "inlineasm_br";
178   case ISD::EH_LABEL:                   return "eh_label";
179   case ISD::ANNOTATION_LABEL:           return "annotation_label";
180   case ISD::HANDLENODE:                 return "handlenode";
181 
182   // Unary operators
183   case ISD::FABS:                       return "fabs";
184   case ISD::FMINNUM:                    return "fminnum";
185   case ISD::STRICT_FMINNUM:             return "strict_fminnum";
186   case ISD::FMAXNUM:                    return "fmaxnum";
187   case ISD::STRICT_FMAXNUM:             return "strict_fmaxnum";
188   case ISD::FMINNUM_IEEE:               return "fminnum_ieee";
189   case ISD::FMAXNUM_IEEE:               return "fmaxnum_ieee";
190   case ISD::FMINIMUM:                   return "fminimum";
191   case ISD::STRICT_FMINIMUM:            return "strict_fminimum";
192   case ISD::FMAXIMUM:                   return "fmaximum";
193   case ISD::STRICT_FMAXIMUM:            return "strict_fmaximum";
194   case ISD::FNEG:                       return "fneg";
195   case ISD::FSQRT:                      return "fsqrt";
196   case ISD::STRICT_FSQRT:               return "strict_fsqrt";
197   case ISD::FCBRT:                      return "fcbrt";
198   case ISD::FSIN:                       return "fsin";
199   case ISD::STRICT_FSIN:                return "strict_fsin";
200   case ISD::FCOS:                       return "fcos";
201   case ISD::STRICT_FCOS:                return "strict_fcos";
202   case ISD::FSINCOS:                    return "fsincos";
203   case ISD::FTRUNC:                     return "ftrunc";
204   case ISD::STRICT_FTRUNC:              return "strict_ftrunc";
205   case ISD::FFLOOR:                     return "ffloor";
206   case ISD::STRICT_FFLOOR:              return "strict_ffloor";
207   case ISD::FCEIL:                      return "fceil";
208   case ISD::STRICT_FCEIL:               return "strict_fceil";
209   case ISD::FRINT:                      return "frint";
210   case ISD::STRICT_FRINT:               return "strict_frint";
211   case ISD::FNEARBYINT:                 return "fnearbyint";
212   case ISD::STRICT_FNEARBYINT:          return "strict_fnearbyint";
213   case ISD::FROUND:                     return "fround";
214   case ISD::STRICT_FROUND:              return "strict_fround";
215   case ISD::FROUNDEVEN:                 return "froundeven";
216   case ISD::STRICT_FROUNDEVEN:          return "strict_froundeven";
217   case ISD::FEXP:                       return "fexp";
218   case ISD::STRICT_FEXP:                return "strict_fexp";
219   case ISD::FEXP2:                      return "fexp2";
220   case ISD::STRICT_FEXP2:               return "strict_fexp2";
221   case ISD::FLOG:                       return "flog";
222   case ISD::STRICT_FLOG:                return "strict_flog";
223   case ISD::FLOG2:                      return "flog2";
224   case ISD::STRICT_FLOG2:               return "strict_flog2";
225   case ISD::FLOG10:                     return "flog10";
226   case ISD::STRICT_FLOG10:              return "strict_flog10";
227 
228   // Binary operators
229   case ISD::ADD:                        return "add";
230   case ISD::SUB:                        return "sub";
231   case ISD::MUL:                        return "mul";
232   case ISD::MULHU:                      return "mulhu";
233   case ISD::MULHS:                      return "mulhs";
234   case ISD::SDIV:                       return "sdiv";
235   case ISD::UDIV:                       return "udiv";
236   case ISD::SREM:                       return "srem";
237   case ISD::UREM:                       return "urem";
238   case ISD::SMUL_LOHI:                  return "smul_lohi";
239   case ISD::UMUL_LOHI:                  return "umul_lohi";
240   case ISD::SDIVREM:                    return "sdivrem";
241   case ISD::UDIVREM:                    return "udivrem";
242   case ISD::AND:                        return "and";
243   case ISD::OR:                         return "or";
244   case ISD::XOR:                        return "xor";
245   case ISD::SHL:                        return "shl";
246   case ISD::SRA:                        return "sra";
247   case ISD::SRL:                        return "srl";
248   case ISD::ROTL:                       return "rotl";
249   case ISD::ROTR:                       return "rotr";
250   case ISD::FSHL:                       return "fshl";
251   case ISD::FSHR:                       return "fshr";
252   case ISD::FADD:                       return "fadd";
253   case ISD::STRICT_FADD:                return "strict_fadd";
254   case ISD::FSUB:                       return "fsub";
255   case ISD::STRICT_FSUB:                return "strict_fsub";
256   case ISD::FMUL:                       return "fmul";
257   case ISD::STRICT_FMUL:                return "strict_fmul";
258   case ISD::FDIV:                       return "fdiv";
259   case ISD::STRICT_FDIV:                return "strict_fdiv";
260   case ISD::FMA:                        return "fma";
261   case ISD::STRICT_FMA:                 return "strict_fma";
262   case ISD::FMAD:                       return "fmad";
263   case ISD::FREM:                       return "frem";
264   case ISD::STRICT_FREM:                return "strict_frem";
265   case ISD::FCOPYSIGN:                  return "fcopysign";
266   case ISD::FGETSIGN:                   return "fgetsign";
267   case ISD::FCANONICALIZE:              return "fcanonicalize";
268   case ISD::FPOW:                       return "fpow";
269   case ISD::STRICT_FPOW:                return "strict_fpow";
270   case ISD::SMIN:                       return "smin";
271   case ISD::SMAX:                       return "smax";
272   case ISD::UMIN:                       return "umin";
273   case ISD::UMAX:                       return "umax";
274 
275   case ISD::FPOWI:                      return "fpowi";
276   case ISD::STRICT_FPOWI:               return "strict_fpowi";
277   case ISD::SETCC:                      return "setcc";
278   case ISD::SETCCCARRY:                 return "setcccarry";
279   case ISD::STRICT_FSETCC:              return "strict_fsetcc";
280   case ISD::STRICT_FSETCCS:             return "strict_fsetccs";
281   case ISD::SELECT:                     return "select";
282   case ISD::VSELECT:                    return "vselect";
283   case ISD::SELECT_CC:                  return "select_cc";
284   case ISD::INSERT_VECTOR_ELT:          return "insert_vector_elt";
285   case ISD::EXTRACT_VECTOR_ELT:         return "extract_vector_elt";
286   case ISD::CONCAT_VECTORS:             return "concat_vectors";
287   case ISD::INSERT_SUBVECTOR:           return "insert_subvector";
288   case ISD::EXTRACT_SUBVECTOR:          return "extract_subvector";
289   case ISD::SCALAR_TO_VECTOR:           return "scalar_to_vector";
290   case ISD::VECTOR_SHUFFLE:             return "vector_shuffle";
291   case ISD::VECTOR_SPLICE:              return "vector_splice";
292   case ISD::SPLAT_VECTOR:               return "splat_vector";
293   case ISD::VECTOR_REVERSE:             return "vector_reverse";
294   case ISD::CARRY_FALSE:                return "carry_false";
295   case ISD::ADDC:                       return "addc";
296   case ISD::ADDE:                       return "adde";
297   case ISD::ADDCARRY:                   return "addcarry";
298   case ISD::SADDO_CARRY:                return "saddo_carry";
299   case ISD::SADDO:                      return "saddo";
300   case ISD::UADDO:                      return "uaddo";
301   case ISD::SSUBO:                      return "ssubo";
302   case ISD::USUBO:                      return "usubo";
303   case ISD::SMULO:                      return "smulo";
304   case ISD::UMULO:                      return "umulo";
305   case ISD::SUBC:                       return "subc";
306   case ISD::SUBE:                       return "sube";
307   case ISD::SUBCARRY:                   return "subcarry";
308   case ISD::SSUBO_CARRY:                return "ssubo_carry";
309   case ISD::SHL_PARTS:                  return "shl_parts";
310   case ISD::SRA_PARTS:                  return "sra_parts";
311   case ISD::SRL_PARTS:                  return "srl_parts";
312 
313   case ISD::SADDSAT:                    return "saddsat";
314   case ISD::UADDSAT:                    return "uaddsat";
315   case ISD::SSUBSAT:                    return "ssubsat";
316   case ISD::USUBSAT:                    return "usubsat";
317   case ISD::SSHLSAT:                    return "sshlsat";
318   case ISD::USHLSAT:                    return "ushlsat";
319 
320   case ISD::SMULFIX:                    return "smulfix";
321   case ISD::SMULFIXSAT:                 return "smulfixsat";
322   case ISD::UMULFIX:                    return "umulfix";
323   case ISD::UMULFIXSAT:                 return "umulfixsat";
324 
325   case ISD::SDIVFIX:                    return "sdivfix";
326   case ISD::SDIVFIXSAT:                 return "sdivfixsat";
327   case ISD::UDIVFIX:                    return "udivfix";
328   case ISD::UDIVFIXSAT:                 return "udivfixsat";
329 
330   // Conversion operators.
331   case ISD::SIGN_EXTEND:                return "sign_extend";
332   case ISD::ZERO_EXTEND:                return "zero_extend";
333   case ISD::ANY_EXTEND:                 return "any_extend";
334   case ISD::SIGN_EXTEND_INREG:          return "sign_extend_inreg";
335   case ISD::ANY_EXTEND_VECTOR_INREG:    return "any_extend_vector_inreg";
336   case ISD::SIGN_EXTEND_VECTOR_INREG:   return "sign_extend_vector_inreg";
337   case ISD::ZERO_EXTEND_VECTOR_INREG:   return "zero_extend_vector_inreg";
338   case ISD::TRUNCATE:                   return "truncate";
339   case ISD::FP_ROUND:                   return "fp_round";
340   case ISD::STRICT_FP_ROUND:            return "strict_fp_round";
341   case ISD::FP_EXTEND:                  return "fp_extend";
342   case ISD::STRICT_FP_EXTEND:           return "strict_fp_extend";
343 
344   case ISD::SINT_TO_FP:                 return "sint_to_fp";
345   case ISD::STRICT_SINT_TO_FP:          return "strict_sint_to_fp";
346   case ISD::UINT_TO_FP:                 return "uint_to_fp";
347   case ISD::STRICT_UINT_TO_FP:          return "strict_uint_to_fp";
348   case ISD::FP_TO_SINT:                 return "fp_to_sint";
349   case ISD::STRICT_FP_TO_SINT:          return "strict_fp_to_sint";
350   case ISD::FP_TO_UINT:                 return "fp_to_uint";
351   case ISD::STRICT_FP_TO_UINT:          return "strict_fp_to_uint";
352   case ISD::FP_TO_SINT_SAT:             return "fp_to_sint_sat";
353   case ISD::FP_TO_UINT_SAT:             return "fp_to_uint_sat";
354   case ISD::BITCAST:                    return "bitcast";
355   case ISD::ADDRSPACECAST:              return "addrspacecast";
356   case ISD::FP16_TO_FP:                 return "fp16_to_fp";
357   case ISD::STRICT_FP16_TO_FP:          return "strict_fp16_to_fp";
358   case ISD::FP_TO_FP16:                 return "fp_to_fp16";
359   case ISD::STRICT_FP_TO_FP16:          return "strict_fp_to_fp16";
360   case ISD::LROUND:                     return "lround";
361   case ISD::STRICT_LROUND:              return "strict_lround";
362   case ISD::LLROUND:                    return "llround";
363   case ISD::STRICT_LLROUND:             return "strict_llround";
364   case ISD::LRINT:                      return "lrint";
365   case ISD::STRICT_LRINT:               return "strict_lrint";
366   case ISD::LLRINT:                     return "llrint";
367   case ISD::STRICT_LLRINT:              return "strict_llrint";
368 
369     // Control flow instructions
370   case ISD::BR:                         return "br";
371   case ISD::BRIND:                      return "brind";
372   case ISD::BR_JT:                      return "br_jt";
373   case ISD::BRCOND:                     return "brcond";
374   case ISD::BR_CC:                      return "br_cc";
375   case ISD::CALLSEQ_START:              return "callseq_start";
376   case ISD::CALLSEQ_END:                return "callseq_end";
377 
378     // EH instructions
379   case ISD::CATCHRET:                   return "catchret";
380   case ISD::CLEANUPRET:                 return "cleanupret";
381 
382     // Other operators
383   case ISD::LOAD:                       return "load";
384   case ISD::STORE:                      return "store";
385   case ISD::MLOAD:                      return "masked_load";
386   case ISD::MSTORE:                     return "masked_store";
387   case ISD::MGATHER:                    return "masked_gather";
388   case ISD::MSCATTER:                   return "masked_scatter";
389   case ISD::VAARG:                      return "vaarg";
390   case ISD::VACOPY:                     return "vacopy";
391   case ISD::VAEND:                      return "vaend";
392   case ISD::VASTART:                    return "vastart";
393   case ISD::DYNAMIC_STACKALLOC:         return "dynamic_stackalloc";
394   case ISD::EXTRACT_ELEMENT:            return "extract_element";
395   case ISD::BUILD_PAIR:                 return "build_pair";
396   case ISD::STACKSAVE:                  return "stacksave";
397   case ISD::STACKRESTORE:               return "stackrestore";
398   case ISD::TRAP:                       return "trap";
399   case ISD::DEBUGTRAP:                  return "debugtrap";
400   case ISD::UBSANTRAP:                  return "ubsantrap";
401   case ISD::LIFETIME_START:             return "lifetime.start";
402   case ISD::LIFETIME_END:               return "lifetime.end";
403   case ISD::PSEUDO_PROBE:
404     return "pseudoprobe";
405   case ISD::GC_TRANSITION_START:        return "gc_transition.start";
406   case ISD::GC_TRANSITION_END:          return "gc_transition.end";
407   case ISD::GET_DYNAMIC_AREA_OFFSET:    return "get.dynamic.area.offset";
408   case ISD::FREEZE:                     return "freeze";
409   case ISD::PREALLOCATED_SETUP:
410     return "call_setup";
411   case ISD::PREALLOCATED_ARG:
412     return "call_alloc";
413 
414   // Floating point environment manipulation
415   case ISD::FLT_ROUNDS_:                return "flt_rounds";
416   case ISD::SET_ROUNDING:               return "set_rounding";
417 
418   // Bit manipulation
419   case ISD::ABS:                        return "abs";
420   case ISD::BITREVERSE:                 return "bitreverse";
421   case ISD::BSWAP:                      return "bswap";
422   case ISD::CTPOP:                      return "ctpop";
423   case ISD::CTTZ:                       return "cttz";
424   case ISD::CTTZ_ZERO_UNDEF:            return "cttz_zero_undef";
425   case ISD::CTLZ:                       return "ctlz";
426   case ISD::CTLZ_ZERO_UNDEF:            return "ctlz_zero_undef";
427   case ISD::PARITY:                     return "parity";
428 
429   // Trampolines
430   case ISD::INIT_TRAMPOLINE:            return "init_trampoline";
431   case ISD::ADJUST_TRAMPOLINE:          return "adjust_trampoline";
432 
433   case ISD::CONDCODE:
434     switch (cast<CondCodeSDNode>(this)->get()) {
435     default: llvm_unreachable("Unknown setcc condition!");
436     case ISD::SETOEQ:                   return "setoeq";
437     case ISD::SETOGT:                   return "setogt";
438     case ISD::SETOGE:                   return "setoge";
439     case ISD::SETOLT:                   return "setolt";
440     case ISD::SETOLE:                   return "setole";
441     case ISD::SETONE:                   return "setone";
442 
443     case ISD::SETO:                     return "seto";
444     case ISD::SETUO:                    return "setuo";
445     case ISD::SETUEQ:                   return "setueq";
446     case ISD::SETUGT:                   return "setugt";
447     case ISD::SETUGE:                   return "setuge";
448     case ISD::SETULT:                   return "setult";
449     case ISD::SETULE:                   return "setule";
450     case ISD::SETUNE:                   return "setune";
451 
452     case ISD::SETEQ:                    return "seteq";
453     case ISD::SETGT:                    return "setgt";
454     case ISD::SETGE:                    return "setge";
455     case ISD::SETLT:                    return "setlt";
456     case ISD::SETLE:                    return "setle";
457     case ISD::SETNE:                    return "setne";
458 
459     case ISD::SETTRUE:                  return "settrue";
460     case ISD::SETTRUE2:                 return "settrue2";
461     case ISD::SETFALSE:                 return "setfalse";
462     case ISD::SETFALSE2:                return "setfalse2";
463     }
464   case ISD::VECREDUCE_FADD:             return "vecreduce_fadd";
465   case ISD::VECREDUCE_SEQ_FADD:         return "vecreduce_seq_fadd";
466   case ISD::VECREDUCE_FMUL:             return "vecreduce_fmul";
467   case ISD::VECREDUCE_SEQ_FMUL:         return "vecreduce_seq_fmul";
468   case ISD::VECREDUCE_ADD:              return "vecreduce_add";
469   case ISD::VECREDUCE_MUL:              return "vecreduce_mul";
470   case ISD::VECREDUCE_AND:              return "vecreduce_and";
471   case ISD::VECREDUCE_OR:               return "vecreduce_or";
472   case ISD::VECREDUCE_XOR:              return "vecreduce_xor";
473   case ISD::VECREDUCE_SMAX:             return "vecreduce_smax";
474   case ISD::VECREDUCE_SMIN:             return "vecreduce_smin";
475   case ISD::VECREDUCE_UMAX:             return "vecreduce_umax";
476   case ISD::VECREDUCE_UMIN:             return "vecreduce_umin";
477   case ISD::VECREDUCE_FMAX:             return "vecreduce_fmax";
478   case ISD::VECREDUCE_FMIN:             return "vecreduce_fmin";
479 
480     // Vector Predication
481 #define BEGIN_REGISTER_VP_SDNODE(SDID, LEGALARG, NAME, ...)                    \
482   case ISD::SDID:                                                              \
483     return #NAME;
484 #include "llvm/IR/VPIntrinsics.def"
485   }
486 }
487 
488 const char *SDNode::getIndexedModeName(ISD::MemIndexedMode AM) {
489   switch (AM) {
490   default:              return "";
491   case ISD::PRE_INC:    return "<pre-inc>";
492   case ISD::PRE_DEC:    return "<pre-dec>";
493   case ISD::POST_INC:   return "<post-inc>";
494   case ISD::POST_DEC:   return "<post-dec>";
495   }
496 }
497 
498 static Printable PrintNodeId(const SDNode &Node) {
499   return Printable([&Node](raw_ostream &OS) {
500 #ifndef NDEBUG
501     OS << 't' << Node.PersistentId;
502 #else
503     OS << (const void*)&Node;
504 #endif
505   });
506 }
507 
508 // Print the MMO with more information from the SelectionDAG.
509 static void printMemOperand(raw_ostream &OS, const MachineMemOperand &MMO,
510                             const MachineFunction *MF, const Module *M,
511                             const MachineFrameInfo *MFI,
512                             const TargetInstrInfo *TII, LLVMContext &Ctx) {
513   ModuleSlotTracker MST(M);
514   if (MF)
515     MST.incorporateFunction(MF->getFunction());
516   SmallVector<StringRef, 0> SSNs;
517   MMO.print(OS, MST, SSNs, Ctx, MFI, TII);
518 }
519 
520 static void printMemOperand(raw_ostream &OS, const MachineMemOperand &MMO,
521                             const SelectionDAG *G) {
522   if (G) {
523     const MachineFunction *MF = &G->getMachineFunction();
524     return printMemOperand(OS, MMO, MF, MF->getFunction().getParent(),
525                            &MF->getFrameInfo(), G->getSubtarget().getInstrInfo(),
526                            *G->getContext());
527   } else {
528     LLVMContext Ctx;
529     return printMemOperand(OS, MMO, /*MF=*/nullptr, /*M=*/nullptr,
530                            /*MFI=*/nullptr, /*TII=*/nullptr, Ctx);
531   }
532 }
533 
534 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
535 LLVM_DUMP_METHOD void SDNode::dump() const { dump(nullptr); }
536 
537 LLVM_DUMP_METHOD void SDNode::dump(const SelectionDAG *G) const {
538   print(dbgs(), G);
539   dbgs() << '\n';
540 }
541 #endif
542 
543 void SDNode::print_types(raw_ostream &OS, const SelectionDAG *G) const {
544   for (unsigned i = 0, e = getNumValues(); i != e; ++i) {
545     if (i) OS << ",";
546     if (getValueType(i) == MVT::Other)
547       OS << "ch";
548     else
549       OS << getValueType(i).getEVTString();
550   }
551 }
552 
553 void SDNode::print_details(raw_ostream &OS, const SelectionDAG *G) const {
554   if (getFlags().hasNoUnsignedWrap())
555     OS << " nuw";
556 
557   if (getFlags().hasNoSignedWrap())
558     OS << " nsw";
559 
560   if (getFlags().hasExact())
561     OS << " exact";
562 
563   if (getFlags().hasNoNaNs())
564     OS << " nnan";
565 
566   if (getFlags().hasNoInfs())
567     OS << " ninf";
568 
569   if (getFlags().hasNoSignedZeros())
570     OS << " nsz";
571 
572   if (getFlags().hasAllowReciprocal())
573     OS << " arcp";
574 
575   if (getFlags().hasAllowContract())
576     OS << " contract";
577 
578   if (getFlags().hasApproximateFuncs())
579     OS << " afn";
580 
581   if (getFlags().hasAllowReassociation())
582     OS << " reassoc";
583 
584   if (getFlags().hasNoFPExcept())
585     OS << " nofpexcept";
586 
587   if (const MachineSDNode *MN = dyn_cast<MachineSDNode>(this)) {
588     if (!MN->memoperands_empty()) {
589       OS << "<";
590       OS << "Mem:";
591       for (MachineSDNode::mmo_iterator i = MN->memoperands_begin(),
592            e = MN->memoperands_end(); i != e; ++i) {
593         printMemOperand(OS, **i, G);
594         if (std::next(i) != e)
595           OS << " ";
596       }
597       OS << ">";
598     }
599   } else if (const ShuffleVectorSDNode *SVN =
600                dyn_cast<ShuffleVectorSDNode>(this)) {
601     OS << "<";
602     for (unsigned i = 0, e = ValueList[0].getVectorNumElements(); i != e; ++i) {
603       int Idx = SVN->getMaskElt(i);
604       if (i) OS << ",";
605       if (Idx < 0)
606         OS << "u";
607       else
608         OS << Idx;
609     }
610     OS << ">";
611   } else if (const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(this)) {
612     OS << '<' << CSDN->getAPIntValue() << '>';
613   } else if (const ConstantFPSDNode *CSDN = dyn_cast<ConstantFPSDNode>(this)) {
614     if (&CSDN->getValueAPF().getSemantics() == &APFloat::IEEEsingle())
615       OS << '<' << CSDN->getValueAPF().convertToFloat() << '>';
616     else if (&CSDN->getValueAPF().getSemantics() == &APFloat::IEEEdouble())
617       OS << '<' << CSDN->getValueAPF().convertToDouble() << '>';
618     else {
619       OS << "<APFloat(";
620       CSDN->getValueAPF().bitcastToAPInt().print(OS, false);
621       OS << ")>";
622     }
623   } else if (const GlobalAddressSDNode *GADN =
624              dyn_cast<GlobalAddressSDNode>(this)) {
625     int64_t offset = GADN->getOffset();
626     OS << '<';
627     GADN->getGlobal()->printAsOperand(OS);
628     OS << '>';
629     if (offset > 0)
630       OS << " + " << offset;
631     else
632       OS << " " << offset;
633     if (unsigned int TF = GADN->getTargetFlags())
634       OS << " [TF=" << TF << ']';
635   } else if (const FrameIndexSDNode *FIDN = dyn_cast<FrameIndexSDNode>(this)) {
636     OS << "<" << FIDN->getIndex() << ">";
637   } else if (const JumpTableSDNode *JTDN = dyn_cast<JumpTableSDNode>(this)) {
638     OS << "<" << JTDN->getIndex() << ">";
639     if (unsigned int TF = JTDN->getTargetFlags())
640       OS << " [TF=" << TF << ']';
641   } else if (const ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(this)){
642     int offset = CP->getOffset();
643     if (CP->isMachineConstantPoolEntry())
644       OS << "<" << *CP->getMachineCPVal() << ">";
645     else
646       OS << "<" << *CP->getConstVal() << ">";
647     if (offset > 0)
648       OS << " + " << offset;
649     else
650       OS << " " << offset;
651     if (unsigned int TF = CP->getTargetFlags())
652       OS << " [TF=" << TF << ']';
653   } else if (const TargetIndexSDNode *TI = dyn_cast<TargetIndexSDNode>(this)) {
654     OS << "<" << TI->getIndex() << '+' << TI->getOffset() << ">";
655     if (unsigned TF = TI->getTargetFlags())
656       OS << " [TF=" << TF << ']';
657   } else if (const BasicBlockSDNode *BBDN = dyn_cast<BasicBlockSDNode>(this)) {
658     OS << "<";
659     const Value *LBB = (const Value*)BBDN->getBasicBlock()->getBasicBlock();
660     if (LBB)
661       OS << LBB->getName() << " ";
662     OS << (const void*)BBDN->getBasicBlock() << ">";
663   } else if (const RegisterSDNode *R = dyn_cast<RegisterSDNode>(this)) {
664     OS << ' ' << printReg(R->getReg(),
665                           G ? G->getSubtarget().getRegisterInfo() : nullptr);
666   } else if (const ExternalSymbolSDNode *ES =
667              dyn_cast<ExternalSymbolSDNode>(this)) {
668     OS << "'" << ES->getSymbol() << "'";
669     if (unsigned int TF = ES->getTargetFlags())
670       OS << " [TF=" << TF << ']';
671   } else if (const SrcValueSDNode *M = dyn_cast<SrcValueSDNode>(this)) {
672     if (M->getValue())
673       OS << "<" << M->getValue() << ">";
674     else
675       OS << "<null>";
676   } else if (const MDNodeSDNode *MD = dyn_cast<MDNodeSDNode>(this)) {
677     if (MD->getMD())
678       OS << "<" << MD->getMD() << ">";
679     else
680       OS << "<null>";
681   } else if (const VTSDNode *N = dyn_cast<VTSDNode>(this)) {
682     OS << ":" << N->getVT().getEVTString();
683   }
684   else if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(this)) {
685     OS << "<";
686 
687     printMemOperand(OS, *LD->getMemOperand(), G);
688 
689     bool doExt = true;
690     switch (LD->getExtensionType()) {
691     default: doExt = false; break;
692     case ISD::EXTLOAD:  OS << ", anyext"; break;
693     case ISD::SEXTLOAD: OS << ", sext"; break;
694     case ISD::ZEXTLOAD: OS << ", zext"; break;
695     }
696     if (doExt)
697       OS << " from " << LD->getMemoryVT().getEVTString();
698 
699     const char *AM = getIndexedModeName(LD->getAddressingMode());
700     if (*AM)
701       OS << ", " << AM;
702 
703     OS << ">";
704   } else if (const StoreSDNode *ST = dyn_cast<StoreSDNode>(this)) {
705     OS << "<";
706     printMemOperand(OS, *ST->getMemOperand(), G);
707 
708     if (ST->isTruncatingStore())
709       OS << ", trunc to " << ST->getMemoryVT().getEVTString();
710 
711     const char *AM = getIndexedModeName(ST->getAddressingMode());
712     if (*AM)
713       OS << ", " << AM;
714 
715     OS << ">";
716   } else if (const MaskedLoadSDNode *MLd = dyn_cast<MaskedLoadSDNode>(this)) {
717     OS << "<";
718 
719     printMemOperand(OS, *MLd->getMemOperand(), G);
720 
721     bool doExt = true;
722     switch (MLd->getExtensionType()) {
723     default: doExt = false; break;
724     case ISD::EXTLOAD:  OS << ", anyext"; break;
725     case ISD::SEXTLOAD: OS << ", sext"; break;
726     case ISD::ZEXTLOAD: OS << ", zext"; break;
727     }
728     if (doExt)
729       OS << " from " << MLd->getMemoryVT().getEVTString();
730 
731     const char *AM = getIndexedModeName(MLd->getAddressingMode());
732     if (*AM)
733       OS << ", " << AM;
734 
735     if (MLd->isExpandingLoad())
736       OS << ", expanding";
737 
738     OS << ">";
739   } else if (const MaskedStoreSDNode *MSt = dyn_cast<MaskedStoreSDNode>(this)) {
740     OS << "<";
741     printMemOperand(OS, *MSt->getMemOperand(), G);
742 
743     if (MSt->isTruncatingStore())
744       OS << ", trunc to " << MSt->getMemoryVT().getEVTString();
745 
746     const char *AM = getIndexedModeName(MSt->getAddressingMode());
747     if (*AM)
748       OS << ", " << AM;
749 
750     if (MSt->isCompressingStore())
751       OS << ", compressing";
752 
753     OS << ">";
754   } else if (const auto *MGather = dyn_cast<MaskedGatherSDNode>(this)) {
755     OS << "<";
756     printMemOperand(OS, *MGather->getMemOperand(), G);
757 
758     bool doExt = true;
759     switch (MGather->getExtensionType()) {
760     default: doExt = false; break;
761     case ISD::EXTLOAD:  OS << ", anyext"; break;
762     case ISD::SEXTLOAD: OS << ", sext"; break;
763     case ISD::ZEXTLOAD: OS << ", zext"; break;
764     }
765     if (doExt)
766       OS << " from " << MGather->getMemoryVT().getEVTString();
767 
768     auto Signed = MGather->isIndexSigned() ? "signed" : "unsigned";
769     auto Scaled = MGather->isIndexScaled() ? "scaled" : "unscaled";
770     OS << ", " << Signed << " " << Scaled << " offset";
771 
772     OS << ">";
773   } else if (const auto *MScatter = dyn_cast<MaskedScatterSDNode>(this)) {
774     OS << "<";
775     printMemOperand(OS, *MScatter->getMemOperand(), G);
776 
777     if (MScatter->isTruncatingStore())
778       OS << ", trunc to " << MScatter->getMemoryVT().getEVTString();
779 
780     auto Signed = MScatter->isIndexSigned() ? "signed" : "unsigned";
781     auto Scaled = MScatter->isIndexScaled() ? "scaled" : "unscaled";
782     OS << ", " << Signed << " " << Scaled << " offset";
783 
784     OS << ">";
785   } else if (const MemSDNode *M = dyn_cast<MemSDNode>(this)) {
786     OS << "<";
787     printMemOperand(OS, *M->getMemOperand(), G);
788     OS << ">";
789   } else if (const BlockAddressSDNode *BA =
790                dyn_cast<BlockAddressSDNode>(this)) {
791     int64_t offset = BA->getOffset();
792     OS << "<";
793     BA->getBlockAddress()->getFunction()->printAsOperand(OS, false);
794     OS << ", ";
795     BA->getBlockAddress()->getBasicBlock()->printAsOperand(OS, false);
796     OS << ">";
797     if (offset > 0)
798       OS << " + " << offset;
799     else
800       OS << " " << offset;
801     if (unsigned int TF = BA->getTargetFlags())
802       OS << " [TF=" << TF << ']';
803   } else if (const AddrSpaceCastSDNode *ASC =
804                dyn_cast<AddrSpaceCastSDNode>(this)) {
805     OS << '['
806        << ASC->getSrcAddressSpace()
807        << " -> "
808        << ASC->getDestAddressSpace()
809        << ']';
810   } else if (const LifetimeSDNode *LN = dyn_cast<LifetimeSDNode>(this)) {
811     if (LN->hasOffset())
812       OS << "<" << LN->getOffset() << " to " << LN->getOffset() + LN->getSize() << ">";
813   }
814 
815   if (VerboseDAGDumping) {
816     if (unsigned Order = getIROrder())
817         OS << " [ORD=" << Order << ']';
818 
819     if (getNodeId() != -1)
820       OS << " [ID=" << getNodeId() << ']';
821     if (!(isa<ConstantSDNode>(this) || (isa<ConstantFPSDNode>(this))))
822       OS << " # D:" << isDivergent();
823 
824     if (G && !G->GetDbgValues(this).empty()) {
825       OS << " [NoOfDbgValues=" << G->GetDbgValues(this).size() << ']';
826       for (SDDbgValue *Dbg : G->GetDbgValues(this))
827         if (!Dbg->isInvalidated())
828           Dbg->print(OS);
829     } else if (getHasDebugValue())
830       OS << " [NoOfDbgValues>0]";
831   }
832 }
833 
834 LLVM_DUMP_METHOD void SDDbgValue::print(raw_ostream &OS) const {
835   OS << " DbgVal(Order=" << getOrder() << ')';
836   if (isInvalidated())
837     OS << "(Invalidated)";
838   if (isEmitted())
839     OS << "(Emitted)";
840   OS << "(";
841   bool Comma = false;
842   for (const SDDbgOperand &Op : getLocationOps()) {
843     if (Comma)
844       OS << ", ";
845     switch (Op.getKind()) {
846     case SDDbgOperand::SDNODE:
847       if (Op.getSDNode())
848         OS << "SDNODE=" << PrintNodeId(*Op.getSDNode()) << ':' << Op.getResNo();
849       else
850         OS << "SDNODE";
851       break;
852     case SDDbgOperand::CONST:
853       OS << "CONST";
854       break;
855     case SDDbgOperand::FRAMEIX:
856       OS << "FRAMEIX=" << Op.getFrameIx();
857       break;
858     case SDDbgOperand::VREG:
859       OS << "VREG=" << Op.getVReg();
860       break;
861     }
862     Comma = true;
863   }
864   OS << ")";
865   if (isIndirect()) OS << "(Indirect)";
866   if (isVariadic())
867     OS << "(Variadic)";
868   OS << ":\"" << Var->getName() << '"';
869 #ifndef NDEBUG
870   if (Expr->getNumElements())
871     Expr->dump();
872 #endif
873 }
874 
875 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
876 LLVM_DUMP_METHOD void SDDbgValue::dump() const {
877   if (isInvalidated())
878     return;
879   print(dbgs());
880   dbgs() << "\n";
881 }
882 #endif
883 
884 /// Return true if this node is so simple that we should just print it inline
885 /// if it appears as an operand.
886 static bool shouldPrintInline(const SDNode &Node, const SelectionDAG *G) {
887   // Avoid lots of cluttering when inline printing nodes with associated
888   // DbgValues in verbose mode.
889   if (VerboseDAGDumping && G && !G->GetDbgValues(&Node).empty())
890     return false;
891   if (Node.getOpcode() == ISD::EntryToken)
892     return false;
893   return Node.getNumOperands() == 0;
894 }
895 
896 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
897 static void DumpNodes(const SDNode *N, unsigned indent, const SelectionDAG *G) {
898   for (const SDValue &Op : N->op_values()) {
899     if (shouldPrintInline(*Op.getNode(), G))
900       continue;
901     if (Op.getNode()->hasOneUse())
902       DumpNodes(Op.getNode(), indent+2, G);
903   }
904 
905   dbgs().indent(indent);
906   N->dump(G);
907 }
908 
909 LLVM_DUMP_METHOD void SelectionDAG::dump() const {
910   dbgs() << "SelectionDAG has " << AllNodes.size() << " nodes:\n";
911 
912   for (const SDNode &N : allnodes()) {
913     if (!N.hasOneUse() && &N != getRoot().getNode() &&
914         (!shouldPrintInline(N, this) || N.use_empty()))
915       DumpNodes(&N, 2, this);
916   }
917 
918   if (getRoot().getNode()) DumpNodes(getRoot().getNode(), 2, this);
919   dbgs() << "\n";
920 
921   if (VerboseDAGDumping) {
922     if (DbgBegin() != DbgEnd())
923       dbgs() << "SDDbgValues:\n";
924     for (auto *Dbg : make_range(DbgBegin(), DbgEnd()))
925       Dbg->dump();
926     if (ByvalParmDbgBegin() != ByvalParmDbgEnd())
927       dbgs() << "Byval SDDbgValues:\n";
928     for (auto *Dbg : make_range(ByvalParmDbgBegin(), ByvalParmDbgEnd()))
929       Dbg->dump();
930   }
931   dbgs() << "\n";
932 }
933 #endif
934 
935 void SDNode::printr(raw_ostream &OS, const SelectionDAG *G) const {
936   OS << PrintNodeId(*this) << ": ";
937   print_types(OS, G);
938   OS << " = " << getOperationName(G);
939   print_details(OS, G);
940 }
941 
942 static bool printOperand(raw_ostream &OS, const SelectionDAG *G,
943                          const SDValue Value) {
944   if (!Value.getNode()) {
945     OS << "<null>";
946     return false;
947   } else if (shouldPrintInline(*Value.getNode(), G)) {
948     OS << Value->getOperationName(G) << ':';
949     Value->print_types(OS, G);
950     Value->print_details(OS, G);
951     return true;
952   } else {
953     OS << PrintNodeId(*Value.getNode());
954     if (unsigned RN = Value.getResNo())
955       OS << ':' << RN;
956     return false;
957   }
958 }
959 
960 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
961 using VisitedSDNodeSet = SmallPtrSet<const SDNode *, 32>;
962 
963 static void DumpNodesr(raw_ostream &OS, const SDNode *N, unsigned indent,
964                        const SelectionDAG *G, VisitedSDNodeSet &once) {
965   if (!once.insert(N).second) // If we've been here before, return now.
966     return;
967 
968   // Dump the current SDNode, but don't end the line yet.
969   OS.indent(indent);
970   N->printr(OS, G);
971 
972   // Having printed this SDNode, walk the children:
973   for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
974     if (i) OS << ",";
975     OS << " ";
976 
977     const SDValue Op = N->getOperand(i);
978     bool printedInline = printOperand(OS, G, Op);
979     if (printedInline)
980       once.insert(Op.getNode());
981   }
982 
983   OS << "\n";
984 
985   // Dump children that have grandchildren on their own line(s).
986   for (const SDValue &Op : N->op_values())
987     DumpNodesr(OS, Op.getNode(), indent+2, G, once);
988 }
989 
990 LLVM_DUMP_METHOD void SDNode::dumpr() const {
991   VisitedSDNodeSet once;
992   DumpNodesr(dbgs(), this, 0, nullptr, once);
993 }
994 
995 LLVM_DUMP_METHOD void SDNode::dumpr(const SelectionDAG *G) const {
996   VisitedSDNodeSet once;
997   DumpNodesr(dbgs(), this, 0, G, once);
998 }
999 #endif
1000 
1001 static void printrWithDepthHelper(raw_ostream &OS, const SDNode *N,
1002                                   const SelectionDAG *G, unsigned depth,
1003                                   unsigned indent) {
1004   if (depth == 0)
1005     return;
1006 
1007   OS.indent(indent);
1008 
1009   N->print(OS, G);
1010 
1011   if (depth < 1)
1012     return;
1013 
1014   for (const SDValue &Op : N->op_values()) {
1015     // Don't follow chain operands.
1016     if (Op.getValueType() == MVT::Other)
1017       continue;
1018     OS << '\n';
1019     printrWithDepthHelper(OS, Op.getNode(), G, depth-1, indent+2);
1020   }
1021 }
1022 
1023 void SDNode::printrWithDepth(raw_ostream &OS, const SelectionDAG *G,
1024                             unsigned depth) const {
1025   printrWithDepthHelper(OS, this, G, depth, 0);
1026 }
1027 
1028 void SDNode::printrFull(raw_ostream &OS, const SelectionDAG *G) const {
1029   // Don't print impossibly deep things.
1030   printrWithDepth(OS, G, 10);
1031 }
1032 
1033 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
1034 LLVM_DUMP_METHOD
1035 void SDNode::dumprWithDepth(const SelectionDAG *G, unsigned depth) const {
1036   printrWithDepth(dbgs(), G, depth);
1037 }
1038 
1039 LLVM_DUMP_METHOD void SDNode::dumprFull(const SelectionDAG *G) const {
1040   // Don't print impossibly deep things.
1041   dumprWithDepth(G, 10);
1042 }
1043 #endif
1044 
1045 void SDNode::print(raw_ostream &OS, const SelectionDAG *G) const {
1046   printr(OS, G);
1047   for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
1048     if (i) OS << ", "; else OS << " ";
1049     printOperand(OS, G, getOperand(i));
1050   }
1051   if (DebugLoc DL = getDebugLoc()) {
1052     OS << ", ";
1053     DL.print(OS);
1054   }
1055 }
1056