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 "SDNodeDbgValue.h"
14 #include "llvm/ADT/APFloat.h"
15 #include "llvm/ADT/APInt.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/MachineValueType.h"
23 #include "llvm/CodeGen/SelectionDAG.h"
24 #include "llvm/CodeGen/SelectionDAGNodes.h"
25 #include "llvm/CodeGen/TargetInstrInfo.h"
26 #include "llvm/CodeGen/TargetLowering.h"
27 #include "llvm/CodeGen/TargetRegisterInfo.h"
28 #include "llvm/CodeGen/TargetSubtargetInfo.h"
29 #include "llvm/CodeGen/ValueTypes.h"
30 #include "llvm/Config/llvm-config.h"
31 #include "llvm/IR/BasicBlock.h"
32 #include "llvm/IR/Constants.h"
33 #include "llvm/IR/DebugInfoMetadata.h"
34 #include "llvm/IR/DebugLoc.h"
35 #include "llvm/IR/Function.h"
36 #include "llvm/IR/Intrinsics.h"
37 #include "llvm/IR/ModuleSlotTracker.h"
38 #include "llvm/IR/Value.h"
39 #include "llvm/Support/Casting.h"
40 #include "llvm/Support/CommandLine.h"
41 #include "llvm/Support/Compiler.h"
42 #include "llvm/Support/Debug.h"
43 #include "llvm/Support/ErrorHandling.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 <cstdint>
49 #include <iterator>
50 
51 using namespace llvm;
52 
53 static cl::opt<bool>
54 VerboseDAGDumping("dag-dump-verbose", cl::Hidden,
55                   cl::desc("Display more information when dumping selection "
56                            "DAG nodes."));
57 
getOperationName(const SelectionDAG * G) const58 std::string SDNode::getOperationName(const SelectionDAG *G) const {
59   switch (getOpcode()) {
60   default:
61     if (getOpcode() < ISD::BUILTIN_OP_END)
62       return "<<Unknown DAG Node>>";
63     if (isMachineOpcode()) {
64       if (G)
65         if (const TargetInstrInfo *TII = G->getSubtarget().getInstrInfo())
66           if (getMachineOpcode() < TII->getNumOpcodes())
67             return std::string(TII->getName(getMachineOpcode()));
68       return "<<Unknown Machine Node #" + utostr(getOpcode()) + ">>";
69     }
70     if (G) {
71       const TargetLowering &TLI = G->getTargetLoweringInfo();
72       const char *Name = TLI.getTargetNodeName(getOpcode());
73       if (Name) return Name;
74       return "<<Unknown Target Node #" + utostr(getOpcode()) + ">>";
75     }
76     return "<<Unknown Node #" + utostr(getOpcode()) + ">>";
77 
78 #ifndef NDEBUG
79   case ISD::DELETED_NODE:               return "<<Deleted Node!>>";
80 #endif
81   case ISD::PREFETCH:                   return "Prefetch";
82   case ISD::MEMBARRIER:                 return "MemBarrier";
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_UINC_WRAP:
100     return "AtomicLoadUIncWrap";
101   case ISD::ATOMIC_LOAD_UDEC_WRAP:
102     return "AtomicLoadUDecWrap";
103   case ISD::ATOMIC_LOAD:                return "AtomicLoad";
104   case ISD::ATOMIC_STORE:               return "AtomicStore";
105   case ISD::PCMARKER:                   return "PCMarker";
106   case ISD::READCYCLECOUNTER:           return "ReadCycleCounter";
107   case ISD::SRCVALUE:                   return "SrcValue";
108   case ISD::MDNODE_SDNODE:              return "MDNode";
109   case ISD::EntryToken:                 return "EntryToken";
110   case ISD::TokenFactor:                return "TokenFactor";
111   case ISD::AssertSext:                 return "AssertSext";
112   case ISD::AssertZext:                 return "AssertZext";
113   case ISD::AssertAlign:                return "AssertAlign";
114 
115   case ISD::BasicBlock:                 return "BasicBlock";
116   case ISD::VALUETYPE:                  return "ValueType";
117   case ISD::Register:                   return "Register";
118   case ISD::RegisterMask:               return "RegisterMask";
119   case ISD::Constant:
120     if (cast<ConstantSDNode>(this)->isOpaque())
121       return "OpaqueConstant";
122     return "Constant";
123   case ISD::ConstantFP:                 return "ConstantFP";
124   case ISD::GlobalAddress:              return "GlobalAddress";
125   case ISD::GlobalTLSAddress:           return "GlobalTLSAddress";
126   case ISD::FrameIndex:                 return "FrameIndex";
127   case ISD::JumpTable:                  return "JumpTable";
128   case ISD::JUMP_TABLE_DEBUG_INFO:
129     return "JUMP_TABLE_DEBUG_INFO";
130   case ISD::GLOBAL_OFFSET_TABLE:        return "GLOBAL_OFFSET_TABLE";
131   case ISD::RETURNADDR:                 return "RETURNADDR";
132   case ISD::ADDROFRETURNADDR:           return "ADDROFRETURNADDR";
133   case ISD::FRAMEADDR:                  return "FRAMEADDR";
134   case ISD::SPONENTRY:                  return "SPONENTRY";
135   case ISD::LOCAL_RECOVER:              return "LOCAL_RECOVER";
136   case ISD::READ_REGISTER:              return "READ_REGISTER";
137   case ISD::WRITE_REGISTER:             return "WRITE_REGISTER";
138   case ISD::FRAME_TO_ARGS_OFFSET:       return "FRAME_TO_ARGS_OFFSET";
139   case ISD::EH_DWARF_CFA:               return "EH_DWARF_CFA";
140   case ISD::EH_RETURN:                  return "EH_RETURN";
141   case ISD::EH_SJLJ_SETJMP:             return "EH_SJLJ_SETJMP";
142   case ISD::EH_SJLJ_LONGJMP:            return "EH_SJLJ_LONGJMP";
143   case ISD::EH_SJLJ_SETUP_DISPATCH:     return "EH_SJLJ_SETUP_DISPATCH";
144   case ISD::ConstantPool:               return "ConstantPool";
145   case ISD::TargetIndex:                return "TargetIndex";
146   case ISD::ExternalSymbol:             return "ExternalSymbol";
147   case ISD::BlockAddress:               return "BlockAddress";
148   case ISD::INTRINSIC_WO_CHAIN:
149   case ISD::INTRINSIC_VOID:
150   case ISD::INTRINSIC_W_CHAIN: {
151     unsigned OpNo = getOpcode() == ISD::INTRINSIC_WO_CHAIN ? 0 : 1;
152     unsigned IID = getOperand(OpNo)->getAsZExtVal();
153     if (IID < Intrinsic::num_intrinsics)
154       return Intrinsic::getBaseName((Intrinsic::ID)IID).str();
155     if (!G)
156       return "Unknown intrinsic";
157     if (const TargetIntrinsicInfo *TII = G->getTarget().getIntrinsicInfo())
158       return TII->getName(IID);
159     llvm_unreachable("Invalid intrinsic ID");
160   }
161 
162   case ISD::BUILD_VECTOR:               return "BUILD_VECTOR";
163   case ISD::TargetConstant:
164     if (cast<ConstantSDNode>(this)->isOpaque())
165       return "OpaqueTargetConstant";
166     return "TargetConstant";
167   case ISD::TargetConstantFP:           return "TargetConstantFP";
168   case ISD::TargetGlobalAddress:        return "TargetGlobalAddress";
169   case ISD::TargetGlobalTLSAddress:     return "TargetGlobalTLSAddress";
170   case ISD::TargetFrameIndex:           return "TargetFrameIndex";
171   case ISD::TargetJumpTable:            return "TargetJumpTable";
172   case ISD::TargetConstantPool:         return "TargetConstantPool";
173   case ISD::TargetExternalSymbol:       return "TargetExternalSymbol";
174   case ISD::MCSymbol:                   return "MCSymbol";
175   case ISD::TargetBlockAddress:         return "TargetBlockAddress";
176 
177   case ISD::CopyToReg:                  return "CopyToReg";
178   case ISD::CopyFromReg:                return "CopyFromReg";
179   case ISD::UNDEF:                      return "undef";
180   case ISD::VSCALE:                     return "vscale";
181   case ISD::MERGE_VALUES:               return "merge_values";
182   case ISD::INLINEASM:                  return "inlineasm";
183   case ISD::INLINEASM_BR:               return "inlineasm_br";
184   case ISD::EH_LABEL:                   return "eh_label";
185   case ISD::ANNOTATION_LABEL:           return "annotation_label";
186   case ISD::HANDLENODE:                 return "handlenode";
187 
188   // Unary operators
189   case ISD::FABS:                       return "fabs";
190   case ISD::FMINNUM:                    return "fminnum";
191   case ISD::STRICT_FMINNUM:             return "strict_fminnum";
192   case ISD::FMAXNUM:                    return "fmaxnum";
193   case ISD::STRICT_FMAXNUM:             return "strict_fmaxnum";
194   case ISD::FMINNUM_IEEE:               return "fminnum_ieee";
195   case ISD::FMAXNUM_IEEE:               return "fmaxnum_ieee";
196   case ISD::FMINIMUM:                   return "fminimum";
197   case ISD::STRICT_FMINIMUM:            return "strict_fminimum";
198   case ISD::FMAXIMUM:                   return "fmaximum";
199   case ISD::STRICT_FMAXIMUM:            return "strict_fmaximum";
200   case ISD::FNEG:                       return "fneg";
201   case ISD::FSQRT:                      return "fsqrt";
202   case ISD::STRICT_FSQRT:               return "strict_fsqrt";
203   case ISD::FCBRT:                      return "fcbrt";
204   case ISD::FSIN:                       return "fsin";
205   case ISD::STRICT_FSIN:                return "strict_fsin";
206   case ISD::FCOS:                       return "fcos";
207   case ISD::STRICT_FCOS:                return "strict_fcos";
208   case ISD::FSINCOS:                    return "fsincos";
209   case ISD::FTRUNC:                     return "ftrunc";
210   case ISD::STRICT_FTRUNC:              return "strict_ftrunc";
211   case ISD::FFLOOR:                     return "ffloor";
212   case ISD::STRICT_FFLOOR:              return "strict_ffloor";
213   case ISD::FCEIL:                      return "fceil";
214   case ISD::STRICT_FCEIL:               return "strict_fceil";
215   case ISD::FRINT:                      return "frint";
216   case ISD::STRICT_FRINT:               return "strict_frint";
217   case ISD::FNEARBYINT:                 return "fnearbyint";
218   case ISD::STRICT_FNEARBYINT:          return "strict_fnearbyint";
219   case ISD::FROUND:                     return "fround";
220   case ISD::STRICT_FROUND:              return "strict_fround";
221   case ISD::FROUNDEVEN:                 return "froundeven";
222   case ISD::STRICT_FROUNDEVEN:          return "strict_froundeven";
223   case ISD::FEXP:                       return "fexp";
224   case ISD::STRICT_FEXP:                return "strict_fexp";
225   case ISD::FEXP2:                      return "fexp2";
226   case ISD::STRICT_FEXP2:               return "strict_fexp2";
227   case ISD::FEXP10:                     return "fexp10";
228   case ISD::FLOG:                       return "flog";
229   case ISD::STRICT_FLOG:                return "strict_flog";
230   case ISD::FLOG2:                      return "flog2";
231   case ISD::STRICT_FLOG2:               return "strict_flog2";
232   case ISD::FLOG10:                     return "flog10";
233   case ISD::STRICT_FLOG10:              return "strict_flog10";
234 
235   // Binary operators
236   case ISD::ADD:                        return "add";
237   case ISD::SUB:                        return "sub";
238   case ISD::MUL:                        return "mul";
239   case ISD::MULHU:                      return "mulhu";
240   case ISD::MULHS:                      return "mulhs";
241   case ISD::AVGFLOORU:                  return "avgflooru";
242   case ISD::AVGFLOORS:                  return "avgfloors";
243   case ISD::AVGCEILU:                   return "avgceilu";
244   case ISD::AVGCEILS:                   return "avgceils";
245   case ISD::ABDS:                       return "abds";
246   case ISD::ABDU:                       return "abdu";
247   case ISD::SDIV:                       return "sdiv";
248   case ISD::UDIV:                       return "udiv";
249   case ISD::SREM:                       return "srem";
250   case ISD::UREM:                       return "urem";
251   case ISD::SMUL_LOHI:                  return "smul_lohi";
252   case ISD::UMUL_LOHI:                  return "umul_lohi";
253   case ISD::SDIVREM:                    return "sdivrem";
254   case ISD::UDIVREM:                    return "udivrem";
255   case ISD::AND:                        return "and";
256   case ISD::OR:                         return "or";
257   case ISD::XOR:                        return "xor";
258   case ISD::SHL:                        return "shl";
259   case ISD::SRA:                        return "sra";
260   case ISD::SRL:                        return "srl";
261   case ISD::ROTL:                       return "rotl";
262   case ISD::ROTR:                       return "rotr";
263   case ISD::FSHL:                       return "fshl";
264   case ISD::FSHR:                       return "fshr";
265   case ISD::FADD:                       return "fadd";
266   case ISD::STRICT_FADD:                return "strict_fadd";
267   case ISD::FSUB:                       return "fsub";
268   case ISD::STRICT_FSUB:                return "strict_fsub";
269   case ISD::FMUL:                       return "fmul";
270   case ISD::STRICT_FMUL:                return "strict_fmul";
271   case ISD::FDIV:                       return "fdiv";
272   case ISD::STRICT_FDIV:                return "strict_fdiv";
273   case ISD::FMA:                        return "fma";
274   case ISD::STRICT_FMA:                 return "strict_fma";
275   case ISD::FMAD:                       return "fmad";
276   case ISD::FREM:                       return "frem";
277   case ISD::STRICT_FREM:                return "strict_frem";
278   case ISD::FCOPYSIGN:                  return "fcopysign";
279   case ISD::FGETSIGN:                   return "fgetsign";
280   case ISD::FCANONICALIZE:              return "fcanonicalize";
281   case ISD::IS_FPCLASS:                 return "is_fpclass";
282   case ISD::FPOW:                       return "fpow";
283   case ISD::STRICT_FPOW:                return "strict_fpow";
284   case ISD::SMIN:                       return "smin";
285   case ISD::SMAX:                       return "smax";
286   case ISD::UMIN:                       return "umin";
287   case ISD::UMAX:                       return "umax";
288 
289   case ISD::FLDEXP:                     return "fldexp";
290   case ISD::STRICT_FLDEXP:              return "strict_fldexp";
291   case ISD::FFREXP:                     return "ffrexp";
292   case ISD::FPOWI:                      return "fpowi";
293   case ISD::STRICT_FPOWI:               return "strict_fpowi";
294   case ISD::SETCC:                      return "setcc";
295   case ISD::SETCCCARRY:                 return "setcccarry";
296   case ISD::STRICT_FSETCC:              return "strict_fsetcc";
297   case ISD::STRICT_FSETCCS:             return "strict_fsetccs";
298   case ISD::SELECT:                     return "select";
299   case ISD::VSELECT:                    return "vselect";
300   case ISD::SELECT_CC:                  return "select_cc";
301   case ISD::INSERT_VECTOR_ELT:          return "insert_vector_elt";
302   case ISD::EXTRACT_VECTOR_ELT:         return "extract_vector_elt";
303   case ISD::CONCAT_VECTORS:             return "concat_vectors";
304   case ISD::INSERT_SUBVECTOR:           return "insert_subvector";
305   case ISD::EXTRACT_SUBVECTOR:          return "extract_subvector";
306   case ISD::VECTOR_DEINTERLEAVE:        return "vector_deinterleave";
307   case ISD::VECTOR_INTERLEAVE:          return "vector_interleave";
308   case ISD::SCALAR_TO_VECTOR:           return "scalar_to_vector";
309   case ISD::VECTOR_SHUFFLE:             return "vector_shuffle";
310   case ISD::VECTOR_SPLICE:              return "vector_splice";
311   case ISD::SPLAT_VECTOR:               return "splat_vector";
312   case ISD::SPLAT_VECTOR_PARTS:         return "splat_vector_parts";
313   case ISD::VECTOR_REVERSE:             return "vector_reverse";
314   case ISD::STEP_VECTOR:                return "step_vector";
315   case ISD::CARRY_FALSE:                return "carry_false";
316   case ISD::ADDC:                       return "addc";
317   case ISD::ADDE:                       return "adde";
318   case ISD::UADDO_CARRY:                return "uaddo_carry";
319   case ISD::SADDO_CARRY:                return "saddo_carry";
320   case ISD::SADDO:                      return "saddo";
321   case ISD::UADDO:                      return "uaddo";
322   case ISD::SSUBO:                      return "ssubo";
323   case ISD::USUBO:                      return "usubo";
324   case ISD::SMULO:                      return "smulo";
325   case ISD::UMULO:                      return "umulo";
326   case ISD::SUBC:                       return "subc";
327   case ISD::SUBE:                       return "sube";
328   case ISD::USUBO_CARRY:                return "usubo_carry";
329   case ISD::SSUBO_CARRY:                return "ssubo_carry";
330   case ISD::SHL_PARTS:                  return "shl_parts";
331   case ISD::SRA_PARTS:                  return "sra_parts";
332   case ISD::SRL_PARTS:                  return "srl_parts";
333 
334   case ISD::SADDSAT:                    return "saddsat";
335   case ISD::UADDSAT:                    return "uaddsat";
336   case ISD::SSUBSAT:                    return "ssubsat";
337   case ISD::USUBSAT:                    return "usubsat";
338   case ISD::SSHLSAT:                    return "sshlsat";
339   case ISD::USHLSAT:                    return "ushlsat";
340 
341   case ISD::SMULFIX:                    return "smulfix";
342   case ISD::SMULFIXSAT:                 return "smulfixsat";
343   case ISD::UMULFIX:                    return "umulfix";
344   case ISD::UMULFIXSAT:                 return "umulfixsat";
345 
346   case ISD::SDIVFIX:                    return "sdivfix";
347   case ISD::SDIVFIXSAT:                 return "sdivfixsat";
348   case ISD::UDIVFIX:                    return "udivfix";
349   case ISD::UDIVFIXSAT:                 return "udivfixsat";
350 
351   // Conversion operators.
352   case ISD::SIGN_EXTEND:                return "sign_extend";
353   case ISD::ZERO_EXTEND:                return "zero_extend";
354   case ISD::ANY_EXTEND:                 return "any_extend";
355   case ISD::SIGN_EXTEND_INREG:          return "sign_extend_inreg";
356   case ISD::ANY_EXTEND_VECTOR_INREG:    return "any_extend_vector_inreg";
357   case ISD::SIGN_EXTEND_VECTOR_INREG:   return "sign_extend_vector_inreg";
358   case ISD::ZERO_EXTEND_VECTOR_INREG:   return "zero_extend_vector_inreg";
359   case ISD::TRUNCATE:                   return "truncate";
360   case ISD::FP_ROUND:                   return "fp_round";
361   case ISD::STRICT_FP_ROUND:            return "strict_fp_round";
362   case ISD::FP_EXTEND:                  return "fp_extend";
363   case ISD::STRICT_FP_EXTEND:           return "strict_fp_extend";
364 
365   case ISD::SINT_TO_FP:                 return "sint_to_fp";
366   case ISD::STRICT_SINT_TO_FP:          return "strict_sint_to_fp";
367   case ISD::UINT_TO_FP:                 return "uint_to_fp";
368   case ISD::STRICT_UINT_TO_FP:          return "strict_uint_to_fp";
369   case ISD::FP_TO_SINT:                 return "fp_to_sint";
370   case ISD::STRICT_FP_TO_SINT:          return "strict_fp_to_sint";
371   case ISD::FP_TO_UINT:                 return "fp_to_uint";
372   case ISD::STRICT_FP_TO_UINT:          return "strict_fp_to_uint";
373   case ISD::FP_TO_SINT_SAT:             return "fp_to_sint_sat";
374   case ISD::FP_TO_UINT_SAT:             return "fp_to_uint_sat";
375   case ISD::BITCAST:                    return "bitcast";
376   case ISD::ADDRSPACECAST:              return "addrspacecast";
377   case ISD::FP16_TO_FP:                 return "fp16_to_fp";
378   case ISD::STRICT_FP16_TO_FP:          return "strict_fp16_to_fp";
379   case ISD::FP_TO_FP16:                 return "fp_to_fp16";
380   case ISD::STRICT_FP_TO_FP16:          return "strict_fp_to_fp16";
381   case ISD::BF16_TO_FP:                 return "bf16_to_fp";
382   case ISD::FP_TO_BF16:                 return "fp_to_bf16";
383   case ISD::LROUND:                     return "lround";
384   case ISD::STRICT_LROUND:              return "strict_lround";
385   case ISD::LLROUND:                    return "llround";
386   case ISD::STRICT_LLROUND:             return "strict_llround";
387   case ISD::LRINT:                      return "lrint";
388   case ISD::STRICT_LRINT:               return "strict_lrint";
389   case ISD::LLRINT:                     return "llrint";
390   case ISD::STRICT_LLRINT:              return "strict_llrint";
391 
392     // Control flow instructions
393   case ISD::BR:                         return "br";
394   case ISD::BRIND:                      return "brind";
395   case ISD::BR_JT:                      return "br_jt";
396   case ISD::BRCOND:                     return "brcond";
397   case ISD::BR_CC:                      return "br_cc";
398   case ISD::CALLSEQ_START:              return "callseq_start";
399   case ISD::CALLSEQ_END:                return "callseq_end";
400 
401     // EH instructions
402   case ISD::CATCHRET:                   return "catchret";
403   case ISD::CLEANUPRET:                 return "cleanupret";
404 
405     // Other operators
406   case ISD::LOAD:                       return "load";
407   case ISD::STORE:                      return "store";
408   case ISD::MLOAD:                      return "masked_load";
409   case ISD::MSTORE:                     return "masked_store";
410   case ISD::MGATHER:                    return "masked_gather";
411   case ISD::MSCATTER:                   return "masked_scatter";
412   case ISD::VAARG:                      return "vaarg";
413   case ISD::VACOPY:                     return "vacopy";
414   case ISD::VAEND:                      return "vaend";
415   case ISD::VASTART:                    return "vastart";
416   case ISD::DYNAMIC_STACKALLOC:         return "dynamic_stackalloc";
417   case ISD::EXTRACT_ELEMENT:            return "extract_element";
418   case ISD::BUILD_PAIR:                 return "build_pair";
419   case ISD::STACKSAVE:                  return "stacksave";
420   case ISD::STACKRESTORE:               return "stackrestore";
421   case ISD::TRAP:                       return "trap";
422   case ISD::DEBUGTRAP:                  return "debugtrap";
423   case ISD::UBSANTRAP:                  return "ubsantrap";
424   case ISD::LIFETIME_START:             return "lifetime.start";
425   case ISD::LIFETIME_END:               return "lifetime.end";
426   case ISD::PSEUDO_PROBE:
427     return "pseudoprobe";
428   case ISD::GC_TRANSITION_START:        return "gc_transition.start";
429   case ISD::GC_TRANSITION_END:          return "gc_transition.end";
430   case ISD::GET_DYNAMIC_AREA_OFFSET:    return "get.dynamic.area.offset";
431   case ISD::FREEZE:                     return "freeze";
432   case ISD::PREALLOCATED_SETUP:
433     return "call_setup";
434   case ISD::PREALLOCATED_ARG:
435     return "call_alloc";
436 
437   // Floating point environment manipulation
438   case ISD::GET_ROUNDING:               return "get_rounding";
439   case ISD::SET_ROUNDING:               return "set_rounding";
440   case ISD::GET_FPENV:                  return "get_fpenv";
441   case ISD::SET_FPENV:                  return "set_fpenv";
442   case ISD::RESET_FPENV:                return "reset_fpenv";
443   case ISD::GET_FPENV_MEM:              return "get_fpenv_mem";
444   case ISD::SET_FPENV_MEM:              return "set_fpenv_mem";
445   case ISD::GET_FPMODE:                 return "get_fpmode";
446   case ISD::SET_FPMODE:                 return "set_fpmode";
447   case ISD::RESET_FPMODE:               return "reset_fpmode";
448 
449   // Bit manipulation
450   case ISD::ABS:                        return "abs";
451   case ISD::BITREVERSE:                 return "bitreverse";
452   case ISD::BSWAP:                      return "bswap";
453   case ISD::CTPOP:                      return "ctpop";
454   case ISD::CTTZ:                       return "cttz";
455   case ISD::CTTZ_ZERO_UNDEF:            return "cttz_zero_undef";
456   case ISD::CTLZ:                       return "ctlz";
457   case ISD::CTLZ_ZERO_UNDEF:            return "ctlz_zero_undef";
458   case ISD::PARITY:                     return "parity";
459 
460   // Trampolines
461   case ISD::INIT_TRAMPOLINE:            return "init_trampoline";
462   case ISD::ADJUST_TRAMPOLINE:          return "adjust_trampoline";
463 
464   case ISD::CONDCODE:
465     switch (cast<CondCodeSDNode>(this)->get()) {
466     default: llvm_unreachable("Unknown setcc condition!");
467     case ISD::SETOEQ:                   return "setoeq";
468     case ISD::SETOGT:                   return "setogt";
469     case ISD::SETOGE:                   return "setoge";
470     case ISD::SETOLT:                   return "setolt";
471     case ISD::SETOLE:                   return "setole";
472     case ISD::SETONE:                   return "setone";
473 
474     case ISD::SETO:                     return "seto";
475     case ISD::SETUO:                    return "setuo";
476     case ISD::SETUEQ:                   return "setueq";
477     case ISD::SETUGT:                   return "setugt";
478     case ISD::SETUGE:                   return "setuge";
479     case ISD::SETULT:                   return "setult";
480     case ISD::SETULE:                   return "setule";
481     case ISD::SETUNE:                   return "setune";
482 
483     case ISD::SETEQ:                    return "seteq";
484     case ISD::SETGT:                    return "setgt";
485     case ISD::SETGE:                    return "setge";
486     case ISD::SETLT:                    return "setlt";
487     case ISD::SETLE:                    return "setle";
488     case ISD::SETNE:                    return "setne";
489 
490     case ISD::SETTRUE:                  return "settrue";
491     case ISD::SETTRUE2:                 return "settrue2";
492     case ISD::SETFALSE:                 return "setfalse";
493     case ISD::SETFALSE2:                return "setfalse2";
494     }
495   case ISD::VECREDUCE_FADD:             return "vecreduce_fadd";
496   case ISD::VECREDUCE_SEQ_FADD:         return "vecreduce_seq_fadd";
497   case ISD::VECREDUCE_FMUL:             return "vecreduce_fmul";
498   case ISD::VECREDUCE_SEQ_FMUL:         return "vecreduce_seq_fmul";
499   case ISD::VECREDUCE_ADD:              return "vecreduce_add";
500   case ISD::VECREDUCE_MUL:              return "vecreduce_mul";
501   case ISD::VECREDUCE_AND:              return "vecreduce_and";
502   case ISD::VECREDUCE_OR:               return "vecreduce_or";
503   case ISD::VECREDUCE_XOR:              return "vecreduce_xor";
504   case ISD::VECREDUCE_SMAX:             return "vecreduce_smax";
505   case ISD::VECREDUCE_SMIN:             return "vecreduce_smin";
506   case ISD::VECREDUCE_UMAX:             return "vecreduce_umax";
507   case ISD::VECREDUCE_UMIN:             return "vecreduce_umin";
508   case ISD::VECREDUCE_FMAX:             return "vecreduce_fmax";
509   case ISD::VECREDUCE_FMIN:             return "vecreduce_fmin";
510   case ISD::VECREDUCE_FMAXIMUM:         return "vecreduce_fmaximum";
511   case ISD::VECREDUCE_FMINIMUM:         return "vecreduce_fminimum";
512   case ISD::STACKMAP:
513     return "stackmap";
514   case ISD::PATCHPOINT:
515     return "patchpoint";
516 
517     // Vector Predication
518 #define BEGIN_REGISTER_VP_SDNODE(SDID, LEGALARG, NAME, ...)                    \
519   case ISD::SDID:                                                              \
520     return #NAME;
521 #include "llvm/IR/VPIntrinsics.def"
522   }
523 }
524 
getIndexedModeName(ISD::MemIndexedMode AM)525 const char *SDNode::getIndexedModeName(ISD::MemIndexedMode AM) {
526   switch (AM) {
527   default:              return "";
528   case ISD::PRE_INC:    return "<pre-inc>";
529   case ISD::PRE_DEC:    return "<pre-dec>";
530   case ISD::POST_INC:   return "<post-inc>";
531   case ISD::POST_DEC:   return "<post-dec>";
532   }
533 }
534 
PrintNodeId(const SDNode & Node)535 static Printable PrintNodeId(const SDNode &Node) {
536   return Printable([&Node](raw_ostream &OS) {
537 #ifndef NDEBUG
538     OS << 't' << Node.PersistentId;
539 #else
540     OS << (const void*)&Node;
541 #endif
542   });
543 }
544 
545 // Print the MMO with more information from the SelectionDAG.
printMemOperand(raw_ostream & OS,const MachineMemOperand & MMO,const MachineFunction * MF,const Module * M,const MachineFrameInfo * MFI,const TargetInstrInfo * TII,LLVMContext & Ctx)546 static void printMemOperand(raw_ostream &OS, const MachineMemOperand &MMO,
547                             const MachineFunction *MF, const Module *M,
548                             const MachineFrameInfo *MFI,
549                             const TargetInstrInfo *TII, LLVMContext &Ctx) {
550   ModuleSlotTracker MST(M);
551   if (MF)
552     MST.incorporateFunction(MF->getFunction());
553   SmallVector<StringRef, 0> SSNs;
554   MMO.print(OS, MST, SSNs, Ctx, MFI, TII);
555 }
556 
printMemOperand(raw_ostream & OS,const MachineMemOperand & MMO,const SelectionDAG * G)557 static void printMemOperand(raw_ostream &OS, const MachineMemOperand &MMO,
558                             const SelectionDAG *G) {
559   if (G) {
560     const MachineFunction *MF = &G->getMachineFunction();
561     return printMemOperand(OS, MMO, MF, MF->getFunction().getParent(),
562                            &MF->getFrameInfo(),
563                            G->getSubtarget().getInstrInfo(), *G->getContext());
564   }
565 
566   LLVMContext Ctx;
567   return printMemOperand(OS, MMO, /*MF=*/nullptr, /*M=*/nullptr,
568                          /*MFI=*/nullptr, /*TII=*/nullptr, Ctx);
569 }
570 
571 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
dump() const572 LLVM_DUMP_METHOD void SDNode::dump() const { dump(nullptr); }
573 
dump(const SelectionDAG * G) const574 LLVM_DUMP_METHOD void SDNode::dump(const SelectionDAG *G) const {
575   print(dbgs(), G);
576   dbgs() << '\n';
577 }
578 #endif
579 
print_types(raw_ostream & OS,const SelectionDAG * G) const580 void SDNode::print_types(raw_ostream &OS, const SelectionDAG *G) const {
581   for (unsigned i = 0, e = getNumValues(); i != e; ++i) {
582     if (i) OS << ",";
583     if (getValueType(i) == MVT::Other)
584       OS << "ch";
585     else
586       OS << getValueType(i).getEVTString();
587   }
588 }
589 
print_details(raw_ostream & OS,const SelectionDAG * G) const590 void SDNode::print_details(raw_ostream &OS, const SelectionDAG *G) const {
591   if (getFlags().hasNoUnsignedWrap())
592     OS << " nuw";
593 
594   if (getFlags().hasNoSignedWrap())
595     OS << " nsw";
596 
597   if (getFlags().hasExact())
598     OS << " exact";
599 
600   if (getFlags().hasDisjoint())
601     OS << " disjoint";
602 
603   if (getFlags().hasNonNeg())
604     OS << " nneg";
605 
606   if (getFlags().hasNoNaNs())
607     OS << " nnan";
608 
609   if (getFlags().hasNoInfs())
610     OS << " ninf";
611 
612   if (getFlags().hasNoSignedZeros())
613     OS << " nsz";
614 
615   if (getFlags().hasAllowReciprocal())
616     OS << " arcp";
617 
618   if (getFlags().hasAllowContract())
619     OS << " contract";
620 
621   if (getFlags().hasApproximateFuncs())
622     OS << " afn";
623 
624   if (getFlags().hasAllowReassociation())
625     OS << " reassoc";
626 
627   if (getFlags().hasNoFPExcept())
628     OS << " nofpexcept";
629 
630   if (const MachineSDNode *MN = dyn_cast<MachineSDNode>(this)) {
631     if (!MN->memoperands_empty()) {
632       OS << "<";
633       OS << "Mem:";
634       for (MachineSDNode::mmo_iterator i = MN->memoperands_begin(),
635            e = MN->memoperands_end(); i != e; ++i) {
636         printMemOperand(OS, **i, G);
637         if (std::next(i) != e)
638           OS << " ";
639       }
640       OS << ">";
641     }
642   } else if (const ShuffleVectorSDNode *SVN =
643                dyn_cast<ShuffleVectorSDNode>(this)) {
644     OS << "<";
645     for (unsigned i = 0, e = ValueList[0].getVectorNumElements(); i != e; ++i) {
646       int Idx = SVN->getMaskElt(i);
647       if (i) OS << ",";
648       if (Idx < 0)
649         OS << "u";
650       else
651         OS << Idx;
652     }
653     OS << ">";
654   } else if (const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(this)) {
655     OS << '<' << CSDN->getAPIntValue() << '>';
656   } else if (const ConstantFPSDNode *CSDN = dyn_cast<ConstantFPSDNode>(this)) {
657     if (&CSDN->getValueAPF().getSemantics() == &APFloat::IEEEsingle())
658       OS << '<' << CSDN->getValueAPF().convertToFloat() << '>';
659     else if (&CSDN->getValueAPF().getSemantics() == &APFloat::IEEEdouble())
660       OS << '<' << CSDN->getValueAPF().convertToDouble() << '>';
661     else {
662       OS << "<APFloat(";
663       CSDN->getValueAPF().bitcastToAPInt().print(OS, false);
664       OS << ")>";
665     }
666   } else if (const GlobalAddressSDNode *GADN =
667              dyn_cast<GlobalAddressSDNode>(this)) {
668     int64_t offset = GADN->getOffset();
669     OS << '<';
670     GADN->getGlobal()->printAsOperand(OS);
671     OS << '>';
672     if (offset > 0)
673       OS << " + " << offset;
674     else
675       OS << " " << offset;
676     if (unsigned int TF = GADN->getTargetFlags())
677       OS << " [TF=" << TF << ']';
678   } else if (const FrameIndexSDNode *FIDN = dyn_cast<FrameIndexSDNode>(this)) {
679     OS << "<" << FIDN->getIndex() << ">";
680   } else if (const JumpTableSDNode *JTDN = dyn_cast<JumpTableSDNode>(this)) {
681     OS << "<" << JTDN->getIndex() << ">";
682     if (unsigned int TF = JTDN->getTargetFlags())
683       OS << " [TF=" << TF << ']';
684   } else if (const ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(this)){
685     int offset = CP->getOffset();
686     if (CP->isMachineConstantPoolEntry())
687       OS << "<" << *CP->getMachineCPVal() << ">";
688     else
689       OS << "<" << *CP->getConstVal() << ">";
690     if (offset > 0)
691       OS << " + " << offset;
692     else
693       OS << " " << offset;
694     if (unsigned int TF = CP->getTargetFlags())
695       OS << " [TF=" << TF << ']';
696   } else if (const TargetIndexSDNode *TI = dyn_cast<TargetIndexSDNode>(this)) {
697     OS << "<" << TI->getIndex() << '+' << TI->getOffset() << ">";
698     if (unsigned TF = TI->getTargetFlags())
699       OS << " [TF=" << TF << ']';
700   } else if (const BasicBlockSDNode *BBDN = dyn_cast<BasicBlockSDNode>(this)) {
701     OS << "<";
702     const Value *LBB = (const Value*)BBDN->getBasicBlock()->getBasicBlock();
703     if (LBB)
704       OS << LBB->getName() << " ";
705     OS << (const void*)BBDN->getBasicBlock() << ">";
706   } else if (const RegisterSDNode *R = dyn_cast<RegisterSDNode>(this)) {
707     OS << ' ' << printReg(R->getReg(),
708                           G ? G->getSubtarget().getRegisterInfo() : nullptr);
709   } else if (const ExternalSymbolSDNode *ES =
710              dyn_cast<ExternalSymbolSDNode>(this)) {
711     OS << "'" << ES->getSymbol() << "'";
712     if (unsigned int TF = ES->getTargetFlags())
713       OS << " [TF=" << TF << ']';
714   } else if (const SrcValueSDNode *M = dyn_cast<SrcValueSDNode>(this)) {
715     if (M->getValue())
716       OS << "<" << M->getValue() << ">";
717     else
718       OS << "<null>";
719   } else if (const MDNodeSDNode *MD = dyn_cast<MDNodeSDNode>(this)) {
720     if (MD->getMD())
721       OS << "<" << MD->getMD() << ">";
722     else
723       OS << "<null>";
724   } else if (const VTSDNode *N = dyn_cast<VTSDNode>(this)) {
725     OS << ":" << N->getVT();
726   }
727   else if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(this)) {
728     OS << "<";
729 
730     printMemOperand(OS, *LD->getMemOperand(), G);
731 
732     bool doExt = true;
733     switch (LD->getExtensionType()) {
734     default: doExt = false; break;
735     case ISD::EXTLOAD:  OS << ", anyext"; break;
736     case ISD::SEXTLOAD: OS << ", sext"; break;
737     case ISD::ZEXTLOAD: OS << ", zext"; break;
738     }
739     if (doExt)
740       OS << " from " << LD->getMemoryVT();
741 
742     const char *AM = getIndexedModeName(LD->getAddressingMode());
743     if (*AM)
744       OS << ", " << AM;
745 
746     OS << ">";
747   } else if (const StoreSDNode *ST = dyn_cast<StoreSDNode>(this)) {
748     OS << "<";
749     printMemOperand(OS, *ST->getMemOperand(), G);
750 
751     if (ST->isTruncatingStore())
752       OS << ", trunc to " << ST->getMemoryVT();
753 
754     const char *AM = getIndexedModeName(ST->getAddressingMode());
755     if (*AM)
756       OS << ", " << AM;
757 
758     OS << ">";
759   } else if (const MaskedLoadSDNode *MLd = dyn_cast<MaskedLoadSDNode>(this)) {
760     OS << "<";
761 
762     printMemOperand(OS, *MLd->getMemOperand(), G);
763 
764     bool doExt = true;
765     switch (MLd->getExtensionType()) {
766     default: doExt = false; break;
767     case ISD::EXTLOAD:  OS << ", anyext"; break;
768     case ISD::SEXTLOAD: OS << ", sext"; break;
769     case ISD::ZEXTLOAD: OS << ", zext"; break;
770     }
771     if (doExt)
772       OS << " from " << MLd->getMemoryVT();
773 
774     const char *AM = getIndexedModeName(MLd->getAddressingMode());
775     if (*AM)
776       OS << ", " << AM;
777 
778     if (MLd->isExpandingLoad())
779       OS << ", expanding";
780 
781     OS << ">";
782   } else if (const MaskedStoreSDNode *MSt = dyn_cast<MaskedStoreSDNode>(this)) {
783     OS << "<";
784     printMemOperand(OS, *MSt->getMemOperand(), G);
785 
786     if (MSt->isTruncatingStore())
787       OS << ", trunc to " << MSt->getMemoryVT();
788 
789     const char *AM = getIndexedModeName(MSt->getAddressingMode());
790     if (*AM)
791       OS << ", " << AM;
792 
793     if (MSt->isCompressingStore())
794       OS << ", compressing";
795 
796     OS << ">";
797   } else if (const auto *MGather = dyn_cast<MaskedGatherSDNode>(this)) {
798     OS << "<";
799     printMemOperand(OS, *MGather->getMemOperand(), G);
800 
801     bool doExt = true;
802     switch (MGather->getExtensionType()) {
803     default: doExt = false; break;
804     case ISD::EXTLOAD:  OS << ", anyext"; break;
805     case ISD::SEXTLOAD: OS << ", sext"; break;
806     case ISD::ZEXTLOAD: OS << ", zext"; break;
807     }
808     if (doExt)
809       OS << " from " << MGather->getMemoryVT();
810 
811     auto Signed = MGather->isIndexSigned() ? "signed" : "unsigned";
812     auto Scaled = MGather->isIndexScaled() ? "scaled" : "unscaled";
813     OS << ", " << Signed << " " << Scaled << " offset";
814 
815     OS << ">";
816   } else if (const auto *MScatter = dyn_cast<MaskedScatterSDNode>(this)) {
817     OS << "<";
818     printMemOperand(OS, *MScatter->getMemOperand(), G);
819 
820     if (MScatter->isTruncatingStore())
821       OS << ", trunc to " << MScatter->getMemoryVT();
822 
823     auto Signed = MScatter->isIndexSigned() ? "signed" : "unsigned";
824     auto Scaled = MScatter->isIndexScaled() ? "scaled" : "unscaled";
825     OS << ", " << Signed << " " << Scaled << " offset";
826 
827     OS << ">";
828   } else if (const MemSDNode *M = dyn_cast<MemSDNode>(this)) {
829     OS << "<";
830     printMemOperand(OS, *M->getMemOperand(), G);
831     OS << ">";
832   } else if (const BlockAddressSDNode *BA =
833                dyn_cast<BlockAddressSDNode>(this)) {
834     int64_t offset = BA->getOffset();
835     OS << "<";
836     BA->getBlockAddress()->getFunction()->printAsOperand(OS, false);
837     OS << ", ";
838     BA->getBlockAddress()->getBasicBlock()->printAsOperand(OS, false);
839     OS << ">";
840     if (offset > 0)
841       OS << " + " << offset;
842     else
843       OS << " " << offset;
844     if (unsigned int TF = BA->getTargetFlags())
845       OS << " [TF=" << TF << ']';
846   } else if (const AddrSpaceCastSDNode *ASC =
847                dyn_cast<AddrSpaceCastSDNode>(this)) {
848     OS << '['
849        << ASC->getSrcAddressSpace()
850        << " -> "
851        << ASC->getDestAddressSpace()
852        << ']';
853   } else if (const LifetimeSDNode *LN = dyn_cast<LifetimeSDNode>(this)) {
854     if (LN->hasOffset())
855       OS << "<" << LN->getOffset() << " to " << LN->getOffset() + LN->getSize() << ">";
856   } else if (const auto *AA = dyn_cast<AssertAlignSDNode>(this)) {
857     OS << '<' << AA->getAlign().value() << '>';
858   }
859 
860   if (VerboseDAGDumping) {
861     if (unsigned Order = getIROrder())
862         OS << " [ORD=" << Order << ']';
863 
864     if (getNodeId() != -1)
865       OS << " [ID=" << getNodeId() << ']';
866     if (!(isa<ConstantSDNode>(this) || (isa<ConstantFPSDNode>(this))))
867       OS << " # D:" << isDivergent();
868 
869     if (G && !G->GetDbgValues(this).empty()) {
870       OS << " [NoOfDbgValues=" << G->GetDbgValues(this).size() << ']';
871       for (SDDbgValue *Dbg : G->GetDbgValues(this))
872         if (!Dbg->isInvalidated())
873           Dbg->print(OS);
874     } else if (getHasDebugValue())
875       OS << " [NoOfDbgValues>0]";
876 
877     if (const auto *MD = G ? G->getPCSections(this) : nullptr) {
878       OS << " [pcsections ";
879       MD->printAsOperand(OS, G->getMachineFunction().getFunction().getParent());
880       OS << ']';
881     }
882   }
883 }
884 
print(raw_ostream & OS) const885 LLVM_DUMP_METHOD void SDDbgValue::print(raw_ostream &OS) const {
886   OS << " DbgVal(Order=" << getOrder() << ')';
887   if (isInvalidated())
888     OS << "(Invalidated)";
889   if (isEmitted())
890     OS << "(Emitted)";
891   OS << "(";
892   bool Comma = false;
893   for (const SDDbgOperand &Op : getLocationOps()) {
894     if (Comma)
895       OS << ", ";
896     switch (Op.getKind()) {
897     case SDDbgOperand::SDNODE:
898       if (Op.getSDNode())
899         OS << "SDNODE=" << PrintNodeId(*Op.getSDNode()) << ':' << Op.getResNo();
900       else
901         OS << "SDNODE";
902       break;
903     case SDDbgOperand::CONST:
904       OS << "CONST";
905       break;
906     case SDDbgOperand::FRAMEIX:
907       OS << "FRAMEIX=" << Op.getFrameIx();
908       break;
909     case SDDbgOperand::VREG:
910       OS << "VREG=" << Op.getVReg();
911       break;
912     }
913     Comma = true;
914   }
915   OS << ")";
916   if (isIndirect()) OS << "(Indirect)";
917   if (isVariadic())
918     OS << "(Variadic)";
919   OS << ":\"" << Var->getName() << '"';
920 #ifndef NDEBUG
921   if (Expr->getNumElements())
922     Expr->dump();
923 #endif
924 }
925 
926 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
dump() const927 LLVM_DUMP_METHOD void SDDbgValue::dump() const {
928   if (isInvalidated())
929     return;
930   print(dbgs());
931   dbgs() << "\n";
932 }
933 #endif
934 
935 /// Return true if this node is so simple that we should just print it inline
936 /// if it appears as an operand.
shouldPrintInline(const SDNode & Node,const SelectionDAG * G)937 static bool shouldPrintInline(const SDNode &Node, const SelectionDAG *G) {
938   // Avoid lots of cluttering when inline printing nodes with associated
939   // DbgValues in verbose mode.
940   if (VerboseDAGDumping && G && !G->GetDbgValues(&Node).empty())
941     return false;
942   if (Node.getOpcode() == ISD::EntryToken)
943     return false;
944   return Node.getNumOperands() == 0;
945 }
946 
947 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
DumpNodes(const SDNode * N,unsigned indent,const SelectionDAG * G)948 static void DumpNodes(const SDNode *N, unsigned indent, const SelectionDAG *G) {
949   for (const SDValue &Op : N->op_values()) {
950     if (shouldPrintInline(*Op.getNode(), G))
951       continue;
952     if (Op.getNode()->hasOneUse())
953       DumpNodes(Op.getNode(), indent+2, G);
954   }
955 
956   dbgs().indent(indent);
957   N->dump(G);
958 }
959 
dump() const960 LLVM_DUMP_METHOD void SelectionDAG::dump() const {
961   dbgs() << "SelectionDAG has " << AllNodes.size() << " nodes:\n";
962 
963   for (const SDNode &N : allnodes()) {
964     if (!N.hasOneUse() && &N != getRoot().getNode() &&
965         (!shouldPrintInline(N, this) || N.use_empty()))
966       DumpNodes(&N, 2, this);
967   }
968 
969   if (getRoot().getNode()) DumpNodes(getRoot().getNode(), 2, this);
970   dbgs() << "\n";
971 
972   if (VerboseDAGDumping) {
973     if (DbgBegin() != DbgEnd())
974       dbgs() << "SDDbgValues:\n";
975     for (auto *Dbg : make_range(DbgBegin(), DbgEnd()))
976       Dbg->dump();
977     if (ByvalParmDbgBegin() != ByvalParmDbgEnd())
978       dbgs() << "Byval SDDbgValues:\n";
979     for (auto *Dbg : make_range(ByvalParmDbgBegin(), ByvalParmDbgEnd()))
980       Dbg->dump();
981   }
982   dbgs() << "\n";
983 }
984 #endif
985 
printr(raw_ostream & OS,const SelectionDAG * G) const986 void SDNode::printr(raw_ostream &OS, const SelectionDAG *G) const {
987   OS << PrintNodeId(*this) << ": ";
988   print_types(OS, G);
989   OS << " = " << getOperationName(G);
990   print_details(OS, G);
991 }
992 
printOperand(raw_ostream & OS,const SelectionDAG * G,const SDValue Value)993 static bool printOperand(raw_ostream &OS, const SelectionDAG *G,
994                          const SDValue Value) {
995   if (!Value.getNode()) {
996     OS << "<null>";
997     return false;
998   }
999 
1000   if (shouldPrintInline(*Value.getNode(), G)) {
1001     OS << Value->getOperationName(G) << ':';
1002     Value->print_types(OS, G);
1003     Value->print_details(OS, G);
1004     return true;
1005   }
1006 
1007   OS << PrintNodeId(*Value.getNode());
1008   if (unsigned RN = Value.getResNo())
1009     OS << ':' << RN;
1010   return false;
1011 }
1012 
1013 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
1014 using VisitedSDNodeSet = SmallPtrSet<const SDNode *, 32>;
1015 
DumpNodesr(raw_ostream & OS,const SDNode * N,unsigned indent,const SelectionDAG * G,VisitedSDNodeSet & once)1016 static void DumpNodesr(raw_ostream &OS, const SDNode *N, unsigned indent,
1017                        const SelectionDAG *G, VisitedSDNodeSet &once) {
1018   if (!once.insert(N).second) // If we've been here before, return now.
1019     return;
1020 
1021   // Dump the current SDNode, but don't end the line yet.
1022   OS.indent(indent);
1023   N->printr(OS, G);
1024 
1025   // Having printed this SDNode, walk the children:
1026   for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
1027     if (i) OS << ",";
1028     OS << " ";
1029 
1030     const SDValue Op = N->getOperand(i);
1031     bool printedInline = printOperand(OS, G, Op);
1032     if (printedInline)
1033       once.insert(Op.getNode());
1034   }
1035 
1036   OS << "\n";
1037 
1038   // Dump children that have grandchildren on their own line(s).
1039   for (const SDValue &Op : N->op_values())
1040     DumpNodesr(OS, Op.getNode(), indent+2, G, once);
1041 }
1042 
dumpr() const1043 LLVM_DUMP_METHOD void SDNode::dumpr() const {
1044   VisitedSDNodeSet once;
1045   DumpNodesr(dbgs(), this, 0, nullptr, once);
1046 }
1047 
dumpr(const SelectionDAG * G) const1048 LLVM_DUMP_METHOD void SDNode::dumpr(const SelectionDAG *G) const {
1049   VisitedSDNodeSet once;
1050   DumpNodesr(dbgs(), this, 0, G, once);
1051 }
1052 #endif
1053 
printrWithDepthHelper(raw_ostream & OS,const SDNode * N,const SelectionDAG * G,unsigned depth,unsigned indent)1054 static void printrWithDepthHelper(raw_ostream &OS, const SDNode *N,
1055                                   const SelectionDAG *G, unsigned depth,
1056                                   unsigned indent) {
1057   if (depth == 0)
1058     return;
1059 
1060   OS.indent(indent);
1061 
1062   N->print(OS, G);
1063 
1064   for (const SDValue &Op : N->op_values()) {
1065     // Don't follow chain operands.
1066     if (Op.getValueType() == MVT::Other)
1067       continue;
1068     OS << '\n';
1069     printrWithDepthHelper(OS, Op.getNode(), G, depth - 1, indent + 2);
1070   }
1071 }
1072 
printrWithDepth(raw_ostream & OS,const SelectionDAG * G,unsigned depth) const1073 void SDNode::printrWithDepth(raw_ostream &OS, const SelectionDAG *G,
1074                             unsigned depth) const {
1075   printrWithDepthHelper(OS, this, G, depth, 0);
1076 }
1077 
printrFull(raw_ostream & OS,const SelectionDAG * G) const1078 void SDNode::printrFull(raw_ostream &OS, const SelectionDAG *G) const {
1079   // Don't print impossibly deep things.
1080   printrWithDepth(OS, G, 10);
1081 }
1082 
1083 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
1084 LLVM_DUMP_METHOD
dumprWithDepth(const SelectionDAG * G,unsigned depth) const1085 void SDNode::dumprWithDepth(const SelectionDAG *G, unsigned depth) const {
1086   printrWithDepth(dbgs(), G, depth);
1087 }
1088 
dumprFull(const SelectionDAG * G) const1089 LLVM_DUMP_METHOD void SDNode::dumprFull(const SelectionDAG *G) const {
1090   // Don't print impossibly deep things.
1091   dumprWithDepth(G, 10);
1092 }
1093 #endif
1094 
print(raw_ostream & OS,const SelectionDAG * G) const1095 void SDNode::print(raw_ostream &OS, const SelectionDAG *G) const {
1096   printr(OS, G);
1097   // Under VerboseDAGDumping divergence will be printed always.
1098   if (isDivergent() && !VerboseDAGDumping)
1099     OS << " # D:1";
1100   for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
1101     if (i) OS << ", "; else OS << " ";
1102     printOperand(OS, G, getOperand(i));
1103   }
1104   if (DebugLoc DL = getDebugLoc()) {
1105     OS << ", ";
1106     DL.print(OS);
1107   }
1108 }
1109