LLVM 23.0.0git
SelectionDAGDumper.cpp
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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"
31#include "llvm/Config/llvm-config.h"
32#include "llvm/IR/BasicBlock.h"
33#include "llvm/IR/Constants.h"
35#include "llvm/IR/DebugLoc.h"
36#include "llvm/IR/Function.h"
37#include "llvm/IR/Intrinsics.h"
39#include "llvm/IR/Value.h"
43#include "llvm/Support/Debug.h"
48#include <cstdint>
49#include <iterator>
50
51using namespace llvm;
52
53static cl::opt<bool>
54VerboseDAGDumping("dag-dump-verbose", cl::Hidden,
55 cl::desc("Display more information when dumping selection "
56 "DAG nodes."));
57
58static cl::opt<bool>
59 PrintSDNodeAddrs("print-sdnode-addrs", cl::Hidden,
60 cl::desc("Print addresses of SDNodes when dumping"));
61
62std::string SDNode::getOperationName(const SelectionDAG *G) const {
63 switch (getOpcode()) {
64 default:
66 return "<<Unknown DAG Node>>";
67 if (isMachineOpcode()) {
68 if (G)
69 if (const TargetInstrInfo *TII = G->getSubtarget().getInstrInfo())
70 if (getMachineOpcode() < TII->getNumOpcodes())
71 return std::string(TII->getName(getMachineOpcode()));
72 return "<<Unknown Machine Node #" + utostr(getOpcode()) + ">>";
73 }
74 if (G) {
75 const SelectionDAGTargetInfo &TSI = G->getSelectionDAGInfo();
76 if (const char *Name = TSI.getTargetNodeName(getOpcode()))
77 return Name;
78 const TargetLowering &TLI = G->getTargetLoweringInfo();
79 const char *Name = TLI.getTargetNodeName(getOpcode());
80 if (Name) return Name;
81 return "<<Unknown Target Node #" + utostr(getOpcode()) + ">>";
82 }
83 return "<<Unknown Node #" + utostr(getOpcode()) + ">>";
84
85 // clang-format off
86#ifndef NDEBUG
87 case ISD::DELETED_NODE: return "<<Deleted Node!>>";
88#endif
89 case ISD::PREFETCH: return "Prefetch";
90 case ISD::MEMBARRIER: return "MemBarrier";
91 case ISD::ATOMIC_FENCE: return "AtomicFence";
92 case ISD::ATOMIC_CMP_SWAP: return "AtomicCmpSwap";
93 case ISD::ATOMIC_CMP_SWAP_WITH_SUCCESS: return "AtomicCmpSwapWithSuccess";
94 case ISD::ATOMIC_SWAP: return "AtomicSwap";
95 case ISD::ATOMIC_LOAD_ADD: return "AtomicLoadAdd";
96 case ISD::ATOMIC_LOAD_SUB: return "AtomicLoadSub";
97 case ISD::ATOMIC_LOAD_AND: return "AtomicLoadAnd";
98 case ISD::ATOMIC_LOAD_CLR: return "AtomicLoadClr";
99 case ISD::ATOMIC_LOAD_OR: return "AtomicLoadOr";
100 case ISD::ATOMIC_LOAD_XOR: return "AtomicLoadXor";
101 case ISD::ATOMIC_LOAD_NAND: return "AtomicLoadNand";
102 case ISD::ATOMIC_LOAD_MIN: return "AtomicLoadMin";
103 case ISD::ATOMIC_LOAD_MAX: return "AtomicLoadMax";
104 case ISD::ATOMIC_LOAD_UMIN: return "AtomicLoadUMin";
105 case ISD::ATOMIC_LOAD_UMAX: return "AtomicLoadUMax";
106 case ISD::ATOMIC_LOAD_FADD: return "AtomicLoadFAdd";
107 case ISD::ATOMIC_LOAD_FSUB: return "AtomicLoadFSub";
108 case ISD::ATOMIC_LOAD_FMIN: return "AtomicLoadFMin";
109 case ISD::ATOMIC_LOAD_FMAX: return "AtomicLoadFMax";
110 case ISD::ATOMIC_LOAD_FMINIMUM: return "AtomicLoadFMinimum";
111 case ISD::ATOMIC_LOAD_FMAXIMUM: return "AtomicLoadFMaximum";
113 return "AtomicLoadUIncWrap";
115 return "AtomicLoadUDecWrap";
117 return "AtomicLoadUSubCond";
119 return "AtomicLoadUSubSat";
120 case ISD::ATOMIC_LOAD: return "AtomicLoad";
121 case ISD::ATOMIC_STORE: return "AtomicStore";
122 case ISD::PCMARKER: return "PCMarker";
123 case ISD::READCYCLECOUNTER: return "ReadCycleCounter";
124 case ISD::READSTEADYCOUNTER: return "ReadSteadyCounter";
125 case ISD::SRCVALUE: return "SrcValue";
126 case ISD::MDNODE_SDNODE: return "MDNode";
127 case ISD::EntryToken: return "EntryToken";
128 case ISD::TokenFactor: return "TokenFactor";
129 case ISD::AssertSext: return "AssertSext";
130 case ISD::AssertZext: return "AssertZext";
131 case ISD::AssertNoFPClass: return "AssertNoFPClass";
132 case ISD::AssertAlign: return "AssertAlign";
133
134 case ISD::BasicBlock: return "BasicBlock";
135 case ISD::VALUETYPE: return "ValueType";
136 case ISD::Register: return "Register";
137 case ISD::RegisterMask: return "RegisterMask";
138 case ISD::Constant:
139 if (cast<ConstantSDNode>(this)->isOpaque())
140 return "OpaqueConstant";
141 return "Constant";
142 case ISD::ConstantFP: return "ConstantFP";
143 case ISD::GlobalAddress: return "GlobalAddress";
144 case ISD::GlobalTLSAddress: return "GlobalTLSAddress";
145 case ISD::PtrAuthGlobalAddress: return "PtrAuthGlobalAddress";
146 case ISD::FrameIndex: return "FrameIndex";
147 case ISD::JumpTable: return "JumpTable";
149 return "JUMP_TABLE_DEBUG_INFO";
150 case ISD::GLOBAL_OFFSET_TABLE: return "GLOBAL_OFFSET_TABLE";
151 case ISD::RETURNADDR: return "RETURNADDR";
152 case ISD::ADDROFRETURNADDR: return "ADDROFRETURNADDR";
153 case ISD::FRAMEADDR: return "FRAMEADDR";
154 case ISD::SPONENTRY: return "SPONENTRY";
155 case ISD::STACKADDRESS: return "STACKADDRESS";
156 case ISD::LOCAL_RECOVER: return "LOCAL_RECOVER";
157 case ISD::READ_REGISTER: return "READ_REGISTER";
158 case ISD::WRITE_REGISTER: return "WRITE_REGISTER";
159 case ISD::FRAME_TO_ARGS_OFFSET: return "FRAME_TO_ARGS_OFFSET";
160 case ISD::EH_DWARF_CFA: return "EH_DWARF_CFA";
161 case ISD::EH_RETURN: return "EH_RETURN";
162 case ISD::EH_SJLJ_SETJMP: return "EH_SJLJ_SETJMP";
163 case ISD::EH_SJLJ_LONGJMP: return "EH_SJLJ_LONGJMP";
164 case ISD::EH_SJLJ_SETUP_DISPATCH: return "EH_SJLJ_SETUP_DISPATCH";
165 case ISD::ConstantPool: return "ConstantPool";
166 case ISD::TargetIndex: return "TargetIndex";
167 case ISD::ExternalSymbol: return "ExternalSymbol";
168 case ISD::BlockAddress: return "BlockAddress";
172 unsigned OpNo = getOpcode() == ISD::INTRINSIC_WO_CHAIN ? 0 : 1;
173 unsigned IID = getOperand(OpNo)->getAsZExtVal();
174 if (IID < Intrinsic::num_intrinsics)
176 if (!G)
177 return "Unknown intrinsic";
178 llvm_unreachable("Invalid intrinsic ID");
179 }
180
181 case ISD::BUILD_VECTOR: return "BUILD_VECTOR";
183 if (cast<ConstantSDNode>(this)->isOpaque())
184 return "OpaqueTargetConstant";
185 return "TargetConstant";
186
187 case ISD::TargetConstantFP: return "TargetConstantFP";
188 case ISD::TargetGlobalAddress: return "TargetGlobalAddress";
189 case ISD::TargetGlobalTLSAddress: return "TargetGlobalTLSAddress";
190 case ISD::TargetFrameIndex: return "TargetFrameIndex";
191 case ISD::TargetJumpTable: return "TargetJumpTable";
192 case ISD::TargetConstantPool: return "TargetConstantPool";
193 case ISD::TargetExternalSymbol: return "TargetExternalSymbol";
194 case ISD::MCSymbol: return "MCSymbol";
195 case ISD::TargetBlockAddress: return "TargetBlockAddress";
196
197 case ISD::CopyToReg: return "CopyToReg";
198 case ISD::CopyFromReg: return "CopyFromReg";
199 case ISD::UNDEF: return "undef";
200 case ISD::POISON: return "poison";
201 case ISD::VSCALE: return "vscale";
202 case ISD::MERGE_VALUES: return "merge_values";
203 case ISD::INLINEASM: return "inlineasm";
204 case ISD::INLINEASM_BR: return "inlineasm_br";
205 case ISD::EH_LABEL: return "eh_label";
206 case ISD::ANNOTATION_LABEL: return "annotation_label";
207 case ISD::HANDLENODE: return "handlenode";
208
209 // Unary operators
210 case ISD::FABS: return "fabs";
211 case ISD::FMINNUM: return "fminnum";
212 case ISD::STRICT_FMINNUM: return "strict_fminnum";
213 case ISD::FMAXNUM: return "fmaxnum";
214 case ISD::STRICT_FMAXNUM: return "strict_fmaxnum";
215 case ISD::FMINNUM_IEEE: return "fminnum_ieee";
216 case ISD::FMAXNUM_IEEE: return "fmaxnum_ieee";
217 case ISD::FMINIMUM: return "fminimum";
218 case ISD::STRICT_FMINIMUM: return "strict_fminimum";
219 case ISD::FMAXIMUM: return "fmaximum";
220 case ISD::STRICT_FMAXIMUM: return "strict_fmaximum";
221 case ISD::FMINIMUMNUM: return "fminimumnum";
222 case ISD::FMAXIMUMNUM: return "fmaximumnum";
223 case ISD::PSEUDO_FMIN: return "pseudo_fmin";
224 case ISD::PSEUDO_FMAX: return "pseudo_fmax";
225 case ISD::STRICT_PSEUDO_FMIN: return "strict_pseudo_fmin";
226 case ISD::STRICT_PSEUDO_FMAX: return "strict_pseudo_fmax";
227 case ISD::FNEG: return "fneg";
228 case ISD::FSQRT: return "fsqrt";
229 case ISD::STRICT_FSQRT: return "strict_fsqrt";
230 case ISD::FCBRT: return "fcbrt";
231 case ISD::FSIN: return "fsin";
232 case ISD::STRICT_FSIN: return "strict_fsin";
233 case ISD::FCOS: return "fcos";
234 case ISD::STRICT_FCOS: return "strict_fcos";
235 case ISD::FSINCOS: return "fsincos";
236 case ISD::FSINCOSPI: return "fsincospi";
237 case ISD::FMODF: return "fmodf";
238 case ISD::FTAN: return "ftan";
239 case ISD::STRICT_FTAN: return "strict_ftan";
240 case ISD::FASIN: return "fasin";
241 case ISD::STRICT_FASIN: return "strict_fasin";
242 case ISD::FACOS: return "facos";
243 case ISD::STRICT_FACOS: return "strict_facos";
244 case ISD::FATAN: return "fatan";
245 case ISD::STRICT_FATAN: return "strict_fatan";
246 case ISD::FATAN2: return "fatan2";
247 case ISD::STRICT_FATAN2: return "strict_fatan2";
248 case ISD::FSINH: return "fsinh";
249 case ISD::STRICT_FSINH: return "strict_fsinh";
250 case ISD::FCOSH: return "fcosh";
251 case ISD::STRICT_FCOSH: return "strict_fcosh";
252 case ISD::FTANH: return "ftanh";
253 case ISD::STRICT_FTANH: return "strict_ftanh";
254 case ISD::FTRUNC: return "ftrunc";
255 case ISD::STRICT_FTRUNC: return "strict_ftrunc";
256 case ISD::FFLOOR: return "ffloor";
257 case ISD::STRICT_FFLOOR: return "strict_ffloor";
258 case ISD::FCEIL: return "fceil";
259 case ISD::STRICT_FCEIL: return "strict_fceil";
260 case ISD::FRINT: return "frint";
261 case ISD::STRICT_FRINT: return "strict_frint";
262 case ISD::FNEARBYINT: return "fnearbyint";
263 case ISD::STRICT_FNEARBYINT: return "strict_fnearbyint";
264 case ISD::FROUND: return "fround";
265 case ISD::STRICT_FROUND: return "strict_fround";
266 case ISD::FROUNDEVEN: return "froundeven";
267 case ISD::STRICT_FROUNDEVEN: return "strict_froundeven";
268 case ISD::FEXP: return "fexp";
269 case ISD::STRICT_FEXP: return "strict_fexp";
270 case ISD::FEXP2: return "fexp2";
271 case ISD::STRICT_FEXP2: return "strict_fexp2";
272 case ISD::FEXP10: return "fexp10";
273 case ISD::FLOG: return "flog";
274 case ISD::STRICT_FLOG: return "strict_flog";
275 case ISD::FLOG2: return "flog2";
276 case ISD::STRICT_FLOG2: return "strict_flog2";
277 case ISD::FLOG10: return "flog10";
278 case ISD::STRICT_FLOG10: return "strict_flog10";
279
280 // Binary operators
281 case ISD::ADD: return "add";
282 case ISD::PTRADD: return "ptradd";
283 case ISD::SUB: return "sub";
284 case ISD::MUL: return "mul";
285 case ISD::MULHU: return "mulhu";
286 case ISD::MULHS: return "mulhs";
287 case ISD::AVGFLOORU: return "avgflooru";
288 case ISD::AVGFLOORS: return "avgfloors";
289 case ISD::AVGCEILU: return "avgceilu";
290 case ISD::AVGCEILS: return "avgceils";
291 case ISD::ABDS: return "abds";
292 case ISD::ABDU: return "abdu";
293 case ISD::SDIV: return "sdiv";
294 case ISD::UDIV: return "udiv";
295 case ISD::SREM: return "srem";
296 case ISD::UREM: return "urem";
297 case ISD::SMUL_LOHI: return "smul_lohi";
298 case ISD::UMUL_LOHI: return "umul_lohi";
299 case ISD::SDIVREM: return "sdivrem";
300 case ISD::UDIVREM: return "udivrem";
301 case ISD::AND: return "and";
302 case ISD::OR: return "or";
303 case ISD::XOR: return "xor";
304 case ISD::SHL: return "shl";
305 case ISD::SRA: return "sra";
306 case ISD::SRL: return "srl";
307 case ISD::ROTL: return "rotl";
308 case ISD::ROTR: return "rotr";
309 case ISD::FSHL: return "fshl";
310 case ISD::FSHR: return "fshr";
311 case ISD::CLMUL: return "clmul";
312 case ISD::CLMULR: return "clmulr";
313 case ISD::CLMULH: return "clmulh";
314 case ISD::PEXT: return "pext";
315 case ISD::PDEP: return "pdep";
316 case ISD::FADD: return "fadd";
317 case ISD::STRICT_FADD: return "strict_fadd";
318 case ISD::FSUB: return "fsub";
319 case ISD::STRICT_FSUB: return "strict_fsub";
320 case ISD::FMUL: return "fmul";
321 case ISD::STRICT_FMUL: return "strict_fmul";
322 case ISD::FDIV: return "fdiv";
323 case ISD::STRICT_FDIV: return "strict_fdiv";
324 case ISD::FMA: return "fma";
325 case ISD::STRICT_FMA: return "strict_fma";
326 case ISD::FMAD: return "fmad";
327 case ISD::FMULADD: return "fmuladd";
328 case ISD::FREM: return "frem";
329 case ISD::STRICT_FREM: return "strict_frem";
330 case ISD::FCOPYSIGN: return "fcopysign";
331 case ISD::FGETSIGN: return "fgetsign";
332 case ISD::FCANONICALIZE: return "fcanonicalize";
333 case ISD::IS_FPCLASS: return "is_fpclass";
334 case ISD::FPOW: return "fpow";
335 case ISD::STRICT_FPOW: return "strict_fpow";
336 case ISD::SMIN: return "smin";
337 case ISD::SMAX: return "smax";
338 case ISD::UMIN: return "umin";
339 case ISD::UMAX: return "umax";
340 case ISD::SCMP: return "scmp";
341 case ISD::UCMP: return "ucmp";
342
343 case ISD::FLDEXP: return "fldexp";
344 case ISD::STRICT_FLDEXP: return "strict_fldexp";
345 case ISD::FFREXP: return "ffrexp";
346 case ISD::FPOWI: return "fpowi";
347 case ISD::STRICT_FPOWI: return "strict_fpowi";
348 case ISD::SETCC: return "setcc";
349 case ISD::SETCCCARRY: return "setcccarry";
350 case ISD::STRICT_FSETCC: return "strict_fsetcc";
351 case ISD::STRICT_FSETCCS: return "strict_fsetccs";
352 case ISD::FPTRUNC_ROUND: return "fptrunc_round";
353 case ISD::SELECT: return "select";
354 case ISD::VSELECT: return "vselect";
355 case ISD::SELECT_CC: return "select_cc";
356 case ISD::INSERT_VECTOR_ELT: return "insert_vector_elt";
357 case ISD::EXTRACT_VECTOR_ELT: return "extract_vector_elt";
358 case ISD::CONCAT_VECTORS: return "concat_vectors";
359 case ISD::INSERT_SUBVECTOR: return "insert_subvector";
360 case ISD::EXTRACT_SUBVECTOR: return "extract_subvector";
361 case ISD::VECTOR_DEINTERLEAVE: return "vector_deinterleave";
362 case ISD::VECTOR_INTERLEAVE: return "vector_interleave";
363 case ISD::SCALAR_TO_VECTOR: return "scalar_to_vector";
364 case ISD::VECTOR_SHUFFLE: return "vector_shuffle";
365 case ISD::VECTOR_SPLICE_LEFT: return "vector_splice_left";
366 case ISD::VECTOR_SPLICE_RIGHT: return "vector_splice_right";
367 case ISD::SPLAT_VECTOR: return "splat_vector";
368 case ISD::SPLAT_VECTOR_PARTS: return "splat_vector_parts";
369 case ISD::VECTOR_REVERSE: return "vector_reverse";
370 case ISD::STEP_VECTOR: return "step_vector";
371 case ISD::CARRY_FALSE: return "carry_false";
372 case ISD::ADDC: return "addc";
373 case ISD::ADDE: return "adde";
374 case ISD::UADDO_CARRY: return "uaddo_carry";
375 case ISD::SADDO_CARRY: return "saddo_carry";
376 case ISD::SADDO: return "saddo";
377 case ISD::UADDO: return "uaddo";
378 case ISD::SSUBO: return "ssubo";
379 case ISD::USUBO: return "usubo";
380 case ISD::SMULO: return "smulo";
381 case ISD::UMULO: return "umulo";
382 case ISD::SUBC: return "subc";
383 case ISD::SUBE: return "sube";
384 case ISD::USUBO_CARRY: return "usubo_carry";
385 case ISD::SSUBO_CARRY: return "ssubo_carry";
386 case ISD::SHL_PARTS: return "shl_parts";
387 case ISD::SRA_PARTS: return "sra_parts";
388 case ISD::SRL_PARTS: return "srl_parts";
389
390 case ISD::SADDSAT: return "saddsat";
391 case ISD::UADDSAT: return "uaddsat";
392 case ISD::SSUBSAT: return "ssubsat";
393 case ISD::USUBSAT: return "usubsat";
394 case ISD::SSHLSAT: return "sshlsat";
395 case ISD::USHLSAT: return "ushlsat";
396
397 case ISD::SMULFIX: return "smulfix";
398 case ISD::SMULFIXSAT: return "smulfixsat";
399 case ISD::UMULFIX: return "umulfix";
400 case ISD::UMULFIXSAT: return "umulfixsat";
401
402 case ISD::SDIVFIX: return "sdivfix";
403 case ISD::SDIVFIXSAT: return "sdivfixsat";
404 case ISD::UDIVFIX: return "udivfix";
405 case ISD::UDIVFIXSAT: return "udivfixsat";
406
407 // Conversion operators.
408 case ISD::SIGN_EXTEND: return "sign_extend";
409 case ISD::ZERO_EXTEND: return "zero_extend";
410 case ISD::ANY_EXTEND: return "any_extend";
411 case ISD::SIGN_EXTEND_INREG: return "sign_extend_inreg";
412 case ISD::ANY_EXTEND_VECTOR_INREG: return "any_extend_vector_inreg";
413 case ISD::SIGN_EXTEND_VECTOR_INREG: return "sign_extend_vector_inreg";
414 case ISD::ZERO_EXTEND_VECTOR_INREG: return "zero_extend_vector_inreg";
415 case ISD::TRUNCATE: return "truncate";
416 case ISD::TRUNCATE_SSAT_S: return "truncate_ssat_s";
417 case ISD::TRUNCATE_SSAT_U: return "truncate_ssat_u";
418 case ISD::TRUNCATE_USAT_U: return "truncate_usat_u";
419 case ISD::FP_ROUND: return "fp_round";
420 case ISD::STRICT_FP_ROUND: return "strict_fp_round";
421 case ISD::FP_EXTEND: return "fp_extend";
422 case ISD::STRICT_FP_EXTEND: return "strict_fp_extend";
423
424 case ISD::SINT_TO_FP: return "sint_to_fp";
425 case ISD::STRICT_SINT_TO_FP: return "strict_sint_to_fp";
426 case ISD::UINT_TO_FP: return "uint_to_fp";
427 case ISD::STRICT_UINT_TO_FP: return "strict_uint_to_fp";
428 case ISD::FP_TO_SINT: return "fp_to_sint";
429 case ISD::STRICT_FP_TO_SINT: return "strict_fp_to_sint";
430 case ISD::FP_TO_UINT: return "fp_to_uint";
431 case ISD::STRICT_FP_TO_UINT: return "strict_fp_to_uint";
432 case ISD::FP_TO_SINT_SAT: return "fp_to_sint_sat";
433 case ISD::FP_TO_UINT_SAT: return "fp_to_uint_sat";
434 case ISD::BITCAST: return "bitcast";
435 case ISD::ADDRSPACECAST: return "addrspacecast";
436 case ISD::FP16_TO_FP: return "fp16_to_fp";
437 case ISD::STRICT_FP16_TO_FP: return "strict_fp16_to_fp";
438 case ISD::FP_TO_FP16: return "fp_to_fp16";
439 case ISD::STRICT_FP_TO_FP16: return "strict_fp_to_fp16";
440 case ISD::BF16_TO_FP: return "bf16_to_fp";
441 case ISD::STRICT_BF16_TO_FP: return "strict_bf16_to_fp";
442 case ISD::FP_TO_BF16: return "fp_to_bf16";
443 case ISD::STRICT_FP_TO_BF16: return "strict_fp_to_bf16";
444 case ISD::CONVERT_FROM_ARBITRARY_FP: return "convert_from_arbitrary_fp";
445 case ISD::CONVERT_TO_ARBITRARY_FP: return "convert_to_arbitrary_fp";
446 case ISD::LROUND: return "lround";
447 case ISD::STRICT_LROUND: return "strict_lround";
448 case ISD::LLROUND: return "llround";
449 case ISD::STRICT_LLROUND: return "strict_llround";
450 case ISD::LRINT: return "lrint";
451 case ISD::STRICT_LRINT: return "strict_lrint";
452 case ISD::LLRINT: return "llrint";
453 case ISD::STRICT_LLRINT: return "strict_llrint";
454
455 // Control flow instructions
456 case ISD::BR: return "br";
457 case ISD::BRIND: return "brind";
458 case ISD::BR_JT: return "br_jt";
459 case ISD::BRCOND: return "brcond";
460 case ISD::BR_CC: return "br_cc";
461 case ISD::CALLSEQ_START: return "callseq_start";
462 case ISD::CALLSEQ_END: return "callseq_end";
463
464 // EH instructions
465 case ISD::CATCHRET: return "catchret";
466 case ISD::CLEANUPRET: return "cleanupret";
467
468 // Other operators
469 case ISD::LOAD: return "load";
470 case ISD::STORE: return "store";
471 case ISD::MLOAD: return "masked_load";
472 case ISD::MSTORE: return "masked_store";
473 case ISD::MGATHER: return "masked_gather";
474 case ISD::MSCATTER: return "masked_scatter";
475 case ISD::VECTOR_COMPRESS: return "vector_compress";
476 case ISD::VAARG: return "vaarg";
477 case ISD::VACOPY: return "vacopy";
478 case ISD::VAEND: return "vaend";
479 case ISD::VASTART: return "vastart";
480 case ISD::DYNAMIC_STACKALLOC: return "dynamic_stackalloc";
481 case ISD::EXTRACT_ELEMENT: return "extract_element";
482 case ISD::BUILD_PAIR: return "build_pair";
483 case ISD::STACKSAVE: return "stacksave";
484 case ISD::STACKRESTORE: return "stackrestore";
485 case ISD::TRAP: return "trap";
486 case ISD::DEBUGTRAP: return "debugtrap";
487 case ISD::UBSANTRAP: return "ubsantrap";
488 case ISD::LIFETIME_START: return "lifetime.start";
489 case ISD::LIFETIME_END: return "lifetime.end";
490 case ISD::FAKE_USE:
491 return "fake_use";
492 case ISD::RELOC_NONE:
493 return "reloc_none";
494 case ISD::COND_LOOP:
495 return "cond_loop";
497 return "pseudoprobe";
498 case ISD::GC_TRANSITION_START: return "gc_transition.start";
499 case ISD::GC_TRANSITION_END: return "gc_transition.end";
500 case ISD::GET_DYNAMIC_AREA_OFFSET: return "get.dynamic.area.offset";
501 case ISD::FREEZE: return "freeze";
503 return "call_setup";
505 return "call_alloc";
506
507 // Floating point environment manipulation
508 case ISD::GET_ROUNDING: return "get_rounding";
509 case ISD::SET_ROUNDING: return "set_rounding";
510 case ISD::GET_FPENV: return "get_fpenv";
511 case ISD::SET_FPENV: return "set_fpenv";
512 case ISD::RESET_FPENV: return "reset_fpenv";
513 case ISD::GET_FPENV_MEM: return "get_fpenv_mem";
514 case ISD::SET_FPENV_MEM: return "set_fpenv_mem";
515 case ISD::GET_FPMODE: return "get_fpmode";
516 case ISD::SET_FPMODE: return "set_fpmode";
517 case ISD::RESET_FPMODE: return "reset_fpmode";
518
519 // Convergence control instructions
520 case ISD::CONVERGENCECTRL_ANCHOR: return "convergencectrl_anchor";
521 case ISD::CONVERGENCECTRL_ENTRY: return "convergencectrl_entry";
522 case ISD::CONVERGENCECTRL_LOOP: return "convergencectrl_loop";
523 case ISD::CONVERGENCECTRL_GLUE: return "convergencectrl_glue";
524
525 // Bit manipulation
526 case ISD::ABS: return "abs";
527 case ISD::ABS_MIN_POISON: return "abs_min_poison";
528 case ISD::BITREVERSE: return "bitreverse";
529 case ISD::BSWAP: return "bswap";
530 case ISD::CTPOP: return "ctpop";
531 case ISD::CTTZ: return "cttz";
532 case ISD::CTTZ_ZERO_POISON: return "cttz_zero_poison";
533 case ISD::CTLZ: return "ctlz";
534 case ISD::CTLZ_ZERO_POISON: return "ctlz_zero_poison";
535 case ISD::CTLS: return "ctls";
536 case ISD::PARITY: return "parity";
537
538 // Trampolines
539 case ISD::INIT_TRAMPOLINE: return "init_trampoline";
540 case ISD::ADJUST_TRAMPOLINE: return "adjust_trampoline";
541
542 // clang-format on
543
544 case ISD::CONDCODE:
545 switch (cast<CondCodeSDNode>(this)->get()) {
546 default: llvm_unreachable("Unknown setcc condition!");
547 case ISD::SETOEQ: return "setoeq";
548 case ISD::SETOGT: return "setogt";
549 case ISD::SETOGE: return "setoge";
550 case ISD::SETOLT: return "setolt";
551 case ISD::SETOLE: return "setole";
552 case ISD::SETONE: return "setone";
553
554 case ISD::SETO: return "seto";
555 case ISD::SETUO: return "setuo";
556 case ISD::SETUEQ: return "setueq";
557 case ISD::SETUGT: return "setugt";
558 case ISD::SETUGE: return "setuge";
559 case ISD::SETULT: return "setult";
560 case ISD::SETULE: return "setule";
561 case ISD::SETUNE: return "setune";
562
563 case ISD::SETEQ: return "seteq";
564 case ISD::SETGT: return "setgt";
565 case ISD::SETGE: return "setge";
566 case ISD::SETLT: return "setlt";
567 case ISD::SETLE: return "setle";
568 case ISD::SETNE: return "setne";
569
570 case ISD::SETTRUE: return "settrue";
571 case ISD::SETTRUE2: return "settrue2";
572 case ISD::SETFALSE: return "setfalse";
573 case ISD::SETFALSE2: return "setfalse2";
574 }
575 case ISD::VECREDUCE_FADD: return "vecreduce_fadd";
576 case ISD::VECREDUCE_SEQ_FADD: return "vecreduce_seq_fadd";
577 case ISD::VECREDUCE_FMUL: return "vecreduce_fmul";
578 case ISD::VECREDUCE_SEQ_FMUL: return "vecreduce_seq_fmul";
579 case ISD::VECREDUCE_ADD: return "vecreduce_add";
580 case ISD::VECREDUCE_MUL: return "vecreduce_mul";
581 case ISD::VECREDUCE_AND: return "vecreduce_and";
582 case ISD::VECREDUCE_OR: return "vecreduce_or";
583 case ISD::VECREDUCE_XOR: return "vecreduce_xor";
584 case ISD::VECREDUCE_SMAX: return "vecreduce_smax";
585 case ISD::VECREDUCE_SMIN: return "vecreduce_smin";
586 case ISD::VECREDUCE_UMAX: return "vecreduce_umax";
587 case ISD::VECREDUCE_UMIN: return "vecreduce_umin";
588 case ISD::VECREDUCE_FMAX: return "vecreduce_fmax";
589 case ISD::VECREDUCE_FMIN: return "vecreduce_fmin";
590 case ISD::VECREDUCE_FMAXIMUM: return "vecreduce_fmaximum";
591 case ISD::VECREDUCE_FMINIMUM: return "vecreduce_fminimum";
592 case ISD::STACKMAP:
593 return "stackmap";
594 case ISD::PATCHPOINT:
595 return "patchpoint";
596 case ISD::CLEAR_CACHE:
597 return "clear_cache";
598
600 return "histogram";
601
602 case ISD::CTTZ_ELTS:
603 return "cttz_elts";
605 return "cttz_elts_zero_poison";
606
608 return "find_last_active";
609
611 return "get_active_lane_mask";
612
614 return "partial_reduce_umla";
616 return "partial_reduce_smla";
618 return "partial_reduce_sumla";
620 return "partial_reduce_fmla";
622 return "loop_dep_war";
624 return "loop_dep_raw";
625 case ISD::MASKED_UDIV:
626 return "masked_udiv";
627 case ISD::MASKED_SDIV:
628 return "masked_sdiv";
629 case ISD::MASKED_UREM:
630 return "masked_urem";
631 case ISD::MASKED_SREM:
632 return "masked_srem";
633
634 // Vector Predication
635#define BEGIN_REGISTER_VP_SDNODE(SDID, LEGALARG, NAME, ...) \
636 case ISD::SDID: \
637 return #NAME;
638#include "llvm/IR/VPIntrinsics.def"
639 }
640}
641
643 switch (AM) {
644 default: return "";
645 case ISD::PRE_INC: return "<pre-inc>";
646 case ISD::PRE_DEC: return "<pre-dec>";
647 case ISD::POST_INC: return "<post-inc>";
648 case ISD::POST_DEC: return "<post-dec>";
649 }
650}
651
653 return Printable([&Node](raw_ostream &OS) {
654#ifndef NDEBUG
655 static const raw_ostream::Colors Color[] = {
659 };
660 OS.changeColor(Color[Node.PersistentId % std::size(Color)]);
661 OS << 't' << Node.PersistentId;
662 OS.resetColor();
663#else
664 OS << (const void*)&Node;
665#endif
666 });
667}
668
669// Print the MMO with more information from the SelectionDAG.
671 const MachineFunction *MF, const Module *M,
672 const MachineFrameInfo *MFI,
673 const TargetInstrInfo *TII, LLVMContext &Ctx) {
674 ModuleSlotTracker MST(M);
675 if (MF)
678 MMO.print(OS, MST, SSNs, Ctx, MFI, TII);
679}
680
682 const SelectionDAG *G) {
683 if (G) {
684 const MachineFunction *MF = &G->getMachineFunction();
685 return printMemOperand(OS, MMO, MF, MF->getFunction().getParent(),
686 &MF->getFrameInfo(),
687 G->getSubtarget().getInstrInfo(), *G->getContext());
688 }
689
690 LLVMContext Ctx;
691 return printMemOperand(OS, MMO, /*MF=*/nullptr, /*M=*/nullptr,
692 /*MFI=*/nullptr, /*TII=*/nullptr, Ctx);
693}
694
695#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
696LLVM_DUMP_METHOD void SDNode::dump() const { dump(nullptr); }
697
699 print(dbgs(), G);
700 dbgs() << '\n';
701}
702#endif
703
705 for (unsigned i = 0, e = getNumValues(); i != e; ++i) {
706 if (i) OS << ",";
707 if (getValueType(i) == MVT::Other)
708 OS << "ch";
709 else
710 OS << getValueType(i).getEVTString();
711 }
712}
713
716 OS << " nuw";
717
719 OS << " nsw";
720
721 if (getFlags().hasExact())
722 OS << " exact";
723
724 if (getFlags().hasDisjoint())
725 OS << " disjoint";
726
727 if (getFlags().hasSameSign())
728 OS << " samesign";
729
730 if (getFlags().hasInBounds())
731 OS << " inbounds";
732
733 if (getFlags().hasNonNeg())
734 OS << " nneg";
735
736 if (getFlags().hasNoNaNs())
737 OS << " nnan";
738
739 if (getFlags().hasNoInfs())
740 OS << " ninf";
741
742 if (getFlags().hasNoSignedZeros())
743 OS << " nsz";
744
745 if (getFlags().hasAllowReciprocal())
746 OS << " arcp";
747
748 if (getFlags().hasAllowContract())
749 OS << " contract";
750
751 if (getFlags().hasApproximateFuncs())
752 OS << " afn";
753
754 if (getFlags().hasAllowReassociation())
755 OS << " reassoc";
756
757 if (getFlags().hasNoFPExcept())
758 OS << " nofpexcept";
759
760 if (getFlags().hasNoConvergent())
761 OS << " noconvergent";
762
763 if (const MachineSDNode *MN = dyn_cast<MachineSDNode>(this)) {
764 if (!MN->memoperands_empty()) {
765 OS << "<";
766 OS << "Mem:";
767 for (MachineSDNode::mmo_iterator i = MN->memoperands_begin(),
768 e = MN->memoperands_end(); i != e; ++i) {
769 printMemOperand(OS, **i, G);
770 if (std::next(i) != e)
771 OS << " ";
772 }
773 OS << ">";
774 }
775 } else if (const ShuffleVectorSDNode *SVN =
777 OS << "<";
778 for (unsigned i = 0, e = ValueList[0].getVectorNumElements(); i != e; ++i) {
779 int Idx = SVN->getMaskElt(i);
780 if (i) OS << ",";
781 if (Idx < 0)
782 OS << "u";
783 else
784 OS << Idx;
785 }
786 OS << ">";
787 } else if (const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(this)) {
788 OS << '<' << CSDN->getAPIntValue() << '>';
789 } else if (const ConstantFPSDNode *CSDN = dyn_cast<ConstantFPSDNode>(this)) {
790 if (&CSDN->getValueAPF().getSemantics() == &APFloat::IEEEsingle())
791 OS << '<' << CSDN->getValueAPF().convertToFloat() << '>';
792 else if (&CSDN->getValueAPF().getSemantics() == &APFloat::IEEEdouble())
793 OS << '<' << CSDN->getValueAPF().convertToDouble() << '>';
794 else {
795 OS << "<APFloat(";
796 CSDN->getValueAPF().bitcastToAPInt().print(OS, false);
797 OS << ")>";
798 }
799 } else if (const GlobalAddressSDNode *GADN =
801 int64_t offset = GADN->getOffset();
802 OS << '<';
803 GADN->getGlobal()->printAsOperand(OS);
804 OS << '>';
805 if (offset > 0)
806 OS << " + " << offset;
807 else
808 OS << " " << offset;
809 if (unsigned int TF = GADN->getTargetFlags())
810 OS << " [TF=" << TF << ']';
811 } else if (const FrameIndexSDNode *FIDN = dyn_cast<FrameIndexSDNode>(this)) {
812 OS << "<" << FIDN->getIndex() << ">";
813 } else if (const JumpTableSDNode *JTDN = dyn_cast<JumpTableSDNode>(this)) {
814 OS << "<" << JTDN->getIndex() << ">";
815 if (unsigned int TF = JTDN->getTargetFlags())
816 OS << " [TF=" << TF << ']';
817 } else if (const ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(this)){
818 int offset = CP->getOffset();
819 if (CP->isMachineConstantPoolEntry())
820 OS << "<" << *CP->getMachineCPVal() << ">";
821 else
822 OS << "<" << *CP->getConstVal() << ">";
823 if (offset > 0)
824 OS << " + " << offset;
825 else
826 OS << " " << offset;
827 if (unsigned int TF = CP->getTargetFlags())
828 OS << " [TF=" << TF << ']';
829 } else if (const TargetIndexSDNode *TI = dyn_cast<TargetIndexSDNode>(this)) {
830 OS << "<" << TI->getIndex() << '+' << TI->getOffset() << ">";
831 if (unsigned TF = TI->getTargetFlags())
832 OS << " [TF=" << TF << ']';
833 } else if (const BasicBlockSDNode *BBDN = dyn_cast<BasicBlockSDNode>(this)) {
834 OS << "<";
835 const Value *LBB = (const Value*)BBDN->getBasicBlock()->getBasicBlock();
836 if (LBB)
837 OS << LBB->getName() << " ";
838 OS << (const void*)BBDN->getBasicBlock() << ">";
839 } else if (const RegisterSDNode *R = dyn_cast<RegisterSDNode>(this)) {
840 OS << ' ' << printReg(R->getReg(),
841 G ? G->getSubtarget().getRegisterInfo() : nullptr);
842 } else if (const ExternalSymbolSDNode *ES =
844 OS << "'" << ES->getSymbol() << "'";
845 if (unsigned int TF = ES->getTargetFlags())
846 OS << " [TF=" << TF << ']';
847 } else if (const SrcValueSDNode *M = dyn_cast<SrcValueSDNode>(this)) {
848 if (M->getValue())
849 OS << "<" << M->getValue() << ">";
850 else
851 OS << "<null>";
852 } else if (const MDNodeSDNode *MD = dyn_cast<MDNodeSDNode>(this)) {
853 if (MD->getMD())
854 OS << "<" << MD->getMD() << ">";
855 else
856 OS << "<null>";
857 } else if (const VTSDNode *N = dyn_cast<VTSDNode>(this)) {
858 OS << ":" << N->getVT();
859 }
860 else if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(this)) {
861 OS << "<";
862
863 printMemOperand(OS, *LD->getMemOperand(), G);
864
865 bool doExt = true;
866 switch (LD->getExtensionType()) {
867 default: doExt = false; break;
868 case ISD::EXTLOAD: OS << ", anyext"; break;
869 case ISD::SEXTLOAD: OS << ", sext"; break;
870 case ISD::ZEXTLOAD: OS << ", zext"; break;
871 }
872 if (doExt)
873 OS << " from " << LD->getMemoryVT();
874
875 const char *AM = getIndexedModeName(LD->getAddressingMode());
876 if (*AM)
877 OS << ", " << AM;
878
879 OS << ">";
880 } else if (const StoreSDNode *ST = dyn_cast<StoreSDNode>(this)) {
881 OS << "<";
882 printMemOperand(OS, *ST->getMemOperand(), G);
883
884 if (ST->isTruncatingStore())
885 OS << ", trunc to " << ST->getMemoryVT();
886
887 const char *AM = getIndexedModeName(ST->getAddressingMode());
888 if (*AM)
889 OS << ", " << AM;
890
891 OS << ">";
892 } else if (const MaskedLoadSDNode *MLd = dyn_cast<MaskedLoadSDNode>(this)) {
893 OS << "<";
894
895 printMemOperand(OS, *MLd->getMemOperand(), G);
896
897 bool doExt = true;
898 switch (MLd->getExtensionType()) {
899 default: doExt = false; break;
900 case ISD::EXTLOAD: OS << ", anyext"; break;
901 case ISD::SEXTLOAD: OS << ", sext"; break;
902 case ISD::ZEXTLOAD: OS << ", zext"; break;
903 }
904 if (doExt)
905 OS << " from " << MLd->getMemoryVT();
906
907 const char *AM = getIndexedModeName(MLd->getAddressingMode());
908 if (*AM)
909 OS << ", " << AM;
910
911 if (MLd->isExpandingLoad())
912 OS << ", expanding";
913
914 OS << ">";
915 } else if (const MaskedStoreSDNode *MSt = dyn_cast<MaskedStoreSDNode>(this)) {
916 OS << "<";
917 printMemOperand(OS, *MSt->getMemOperand(), G);
918
919 if (MSt->isTruncatingStore())
920 OS << ", trunc to " << MSt->getMemoryVT();
921
922 const char *AM = getIndexedModeName(MSt->getAddressingMode());
923 if (*AM)
924 OS << ", " << AM;
925
926 if (MSt->isCompressingStore())
927 OS << ", compressing";
928
929 OS << ">";
930 } else if (const auto *MGather = dyn_cast<MaskedGatherSDNode>(this)) {
931 OS << "<";
932 printMemOperand(OS, *MGather->getMemOperand(), G);
933
934 bool doExt = true;
935 switch (MGather->getExtensionType()) {
936 default: doExt = false; break;
937 case ISD::EXTLOAD: OS << ", anyext"; break;
938 case ISD::SEXTLOAD: OS << ", sext"; break;
939 case ISD::ZEXTLOAD: OS << ", zext"; break;
940 }
941 if (doExt)
942 OS << " from " << MGather->getMemoryVT();
943
944 auto Signed = MGather->isIndexSigned() ? "signed" : "unsigned";
945 auto Scaled = MGather->isIndexScaled() ? "scaled" : "unscaled";
946 OS << ", " << Signed << " " << Scaled << " offset";
947
948 OS << ">";
949 } else if (const auto *MScatter = dyn_cast<MaskedScatterSDNode>(this)) {
950 OS << "<";
951 printMemOperand(OS, *MScatter->getMemOperand(), G);
952
953 if (MScatter->isTruncatingStore())
954 OS << ", trunc to " << MScatter->getMemoryVT();
955
956 auto Signed = MScatter->isIndexSigned() ? "signed" : "unsigned";
957 auto Scaled = MScatter->isIndexScaled() ? "scaled" : "unscaled";
958 OS << ", " << Signed << " " << Scaled << " offset";
959
960 OS << ">";
961 } else if (const MemSDNode *M = dyn_cast<MemSDNode>(this)) {
962 OS << "<";
963 interleaveComma(M->memoperands(), OS, [&](const MachineMemOperand *MMO) {
964 printMemOperand(OS, *MMO, G);
965 });
966 if (auto *A = dyn_cast<AtomicSDNode>(M))
967 if (A->getOpcode() == ISD::ATOMIC_LOAD) {
968 bool doExt = true;
969 switch (A->getExtensionType()) {
970 default: doExt = false; break;
971 case ISD::EXTLOAD: OS << ", anyext"; break;
972 case ISD::SEXTLOAD: OS << ", sext"; break;
973 case ISD::ZEXTLOAD: OS << ", zext"; break;
974 }
975 if (doExt)
976 OS << " from " << A->getMemoryVT();
977 }
978 OS << ">";
979 } else if (const BlockAddressSDNode *BA =
981 int64_t offset = BA->getOffset();
982 OS << "<";
983 BA->getBlockAddress()->getFunction()->printAsOperand(OS, false);
984 OS << ", ";
985 BA->getBlockAddress()->getBasicBlock()->printAsOperand(OS, false);
986 OS << ">";
987 if (offset > 0)
988 OS << " + " << offset;
989 else
990 OS << " " << offset;
991 if (unsigned int TF = BA->getTargetFlags())
992 OS << " [TF=" << TF << ']';
993 } else if (const AddrSpaceCastSDNode *ASC =
995 OS << '['
996 << ASC->getSrcAddressSpace()
997 << " -> "
998 << ASC->getDestAddressSpace()
999 << ']';
1000 } else if (const auto *AA = dyn_cast<AssertAlignSDNode>(this)) {
1001 OS << '<' << AA->getAlign().value() << '>';
1002 }
1003
1004 if (VerboseDAGDumping) {
1005 if (unsigned Order = getIROrder())
1006 OS << " [ORD=" << Order << ']';
1007
1008 if (getNodeId() != -1)
1009 OS << " [ID=" << getNodeId() << ']';
1010 if (!(isa<ConstantSDNode>(this) || (isa<ConstantFPSDNode>(this))))
1011 OS << " # D:" << isDivergent();
1012
1013 if (G && !G->GetDbgValues(this).empty()) {
1014 OS << " [NoOfDbgValues=" << G->GetDbgValues(this).size() << ']';
1015 for (SDDbgValue *Dbg : G->GetDbgValues(this))
1016 if (!Dbg->isInvalidated())
1017 Dbg->print(OS);
1018 } else if (getHasDebugValue())
1019 OS << " [NoOfDbgValues>0]";
1020
1021 if (const auto *MD = G ? G->getPCSections(this) : nullptr) {
1022 OS << " [pcsections ";
1023 MD->printAsOperand(OS, G->getMachineFunction().getFunction().getParent());
1024 OS << ']';
1025 }
1026
1027 if (MDNode *MMRA = G ? G->getMMRAMetadata(this) : nullptr) {
1028 OS << " [mmra ";
1029 MMRA->printAsOperand(OS,
1030 G->getMachineFunction().getFunction().getParent());
1031 OS << ']';
1032 }
1033 }
1034}
1035
1037 OS << " DbgVal(Order=" << getOrder() << ')';
1038 if (isInvalidated())
1039 OS << "(Invalidated)";
1040 if (isEmitted())
1041 OS << "(Emitted)";
1042 OS << "(";
1043 bool Comma = false;
1044 for (const SDDbgOperand &Op : getLocationOps()) {
1045 if (Comma)
1046 OS << ", ";
1047 switch (Op.getKind()) {
1049 if (Op.getSDNode())
1050 OS << "SDNODE=" << PrintNodeId(*Op.getSDNode()) << ':' << Op.getResNo();
1051 else
1052 OS << "SDNODE";
1053 break;
1055 OS << "CONST";
1056 break;
1058 OS << "FRAMEIX=" << Op.getFrameIx();
1059 break;
1060 case SDDbgOperand::VREG:
1061 OS << "VREG=" << printReg(Op.getVReg());
1062 break;
1063 }
1064 Comma = true;
1065 }
1066 OS << ")";
1067 if (isIndirect()) OS << "(Indirect)";
1068 if (isVariadic())
1069 OS << "(Variadic)";
1070 OS << ":\"" << Var->getName() << '"';
1071#ifndef NDEBUG
1072 if (Expr->getNumElements())
1073 Expr->dump();
1074#endif
1075}
1076
1077#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
1079 if (isInvalidated())
1080 return;
1081 print(dbgs());
1082 dbgs() << "\n";
1083}
1084#endif
1085
1086/// Return true if this node is so simple that we should just print it inline
1087/// if it appears as an operand.
1088static bool shouldPrintInline(const SDNode &Node, const SelectionDAG *G) {
1089 // Avoid lots of cluttering when inline printing nodes with associated
1090 // DbgValues in verbose mode.
1091 if (VerboseDAGDumping && G && !G->GetDbgValues(&Node).empty())
1092 return false;
1093 if (Node.getOpcode() == ISD::EntryToken)
1094 return false;
1095 return Node.getNumOperands() == 0;
1096}
1097
1098#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
1099static void DumpNodes(const SDNode *N, unsigned indent, const SelectionDAG *G) {
1100 for (const SDValue &Op : N->op_values()) {
1101 if (shouldPrintInline(*Op.getNode(), G))
1102 continue;
1103 if (Op.getNode()->hasOneUse())
1104 DumpNodes(Op.getNode(), indent+2, G);
1105 }
1106
1107 dbgs().indent(indent);
1108 N->dump(G);
1109}
1110
1112
1113LLVM_DUMP_METHOD void SelectionDAG::dump(bool Sorted) const {
1114 dbgs() << "SelectionDAG has " << AllNodes.size() << " nodes:\n";
1115
1116 auto dumpEachNode = [this](const SDNode &N) {
1117 if (!N.hasOneUse() && &N != getRoot().getNode() &&
1118 (!shouldPrintInline(N, this) || N.use_empty()))
1119 DumpNodes(&N, 2, this);
1120 };
1121
1122 if (Sorted) {
1123 SmallVector<const SDNode *> SortedNodes;
1124 SortedNodes.reserve(AllNodes.size());
1125 getTopologicallyOrderedNodes(SortedNodes);
1126 for (const SDNode *N : SortedNodes)
1127 dumpEachNode(*N);
1128 } else {
1129 for (const SDNode &N : allnodes())
1130 dumpEachNode(N);
1131 }
1132
1133 if (getRoot().getNode()) DumpNodes(getRoot().getNode(), 2, this);
1134 dbgs() << "\n";
1135
1136 if (VerboseDAGDumping) {
1137 if (DbgBegin() != DbgEnd())
1138 dbgs() << "SDDbgValues:\n";
1139 for (auto *Dbg : make_range(DbgBegin(), DbgEnd()))
1140 Dbg->dump();
1142 dbgs() << "Byval SDDbgValues:\n";
1143 for (auto *Dbg : make_range(ByvalParmDbgBegin(), ByvalParmDbgEnd()))
1144 Dbg->dump();
1145 }
1146 dbgs() << "\n";
1147}
1148#endif
1149
1150void SDNode::printr(raw_ostream &OS, const SelectionDAG *G) const {
1151 OS << PrintNodeId(*this) << ": ";
1152 print_types(OS, G);
1153 OS << " = " << getOperationName(G);
1154 print_details(OS, G);
1155}
1156
1157static bool printOperand(raw_ostream &OS, const SelectionDAG *G,
1158 const SDValue Value) {
1159 if (!Value.getNode()) {
1160 OS << "<null>";
1161 return false;
1162 }
1163
1164 if (shouldPrintInline(*Value.getNode(), G)) {
1165 OS << Value->getOperationName(G) << ':';
1166 Value->print_types(OS, G);
1167 Value->print_details(OS, G);
1168 return true;
1169 }
1170
1171 OS << PrintNodeId(*Value.getNode());
1172 if (unsigned RN = Value.getResNo())
1173 OS << ':' << RN;
1174 return false;
1175}
1176
1177#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
1179
1180static void DumpNodesr(raw_ostream &OS, const SDNode *N, unsigned indent,
1181 const SelectionDAG *G, VisitedSDNodeSet &once) {
1182 if (!once.insert(N).second) // If we've been here before, return now.
1183 return;
1184
1185 // Dump the current SDNode, but don't end the line yet.
1186 OS.indent(indent);
1187 N->printr(OS, G);
1188
1189 // Having printed this SDNode, walk the children:
1190 for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
1191 if (i) OS << ",";
1192 OS << " ";
1193
1194 const SDValue Op = N->getOperand(i);
1195 bool printedInline = printOperand(OS, G, Op);
1196 if (printedInline)
1197 once.insert(Op.getNode());
1198 }
1199
1200 OS << "\n";
1201
1202 // Dump children that have grandchildren on their own line(s).
1203 for (const SDValue &Op : N->op_values())
1204 DumpNodesr(OS, Op.getNode(), indent+2, G, once);
1205}
1206
1208 VisitedSDNodeSet once;
1209 DumpNodesr(dbgs(), this, 0, nullptr, once);
1210}
1211
1213 VisitedSDNodeSet once;
1214 DumpNodesr(dbgs(), this, 0, G, once);
1215}
1216#endif
1217
1219 const SelectionDAG *G, unsigned depth,
1220 unsigned indent) {
1221 if (depth == 0)
1222 return;
1223
1224 OS.indent(indent);
1225
1226 N->print(OS, G);
1227
1228 for (const SDValue &Op : N->op_values()) {
1229 // Don't follow chain operands.
1230 if (Op.getValueType() == MVT::Other)
1231 continue;
1232 // Don't print children that were fully rendered inline.
1233 if (shouldPrintInline(*Op.getNode(), G))
1234 continue;
1235 OS << '\n';
1236 printrWithDepthHelper(OS, Op.getNode(), G, depth - 1, indent + 2);
1237 }
1238}
1239
1241 unsigned depth) const {
1242 printrWithDepthHelper(OS, this, G, depth, 0);
1243}
1244
1246 // Don't print impossibly deep things.
1247 printrWithDepth(OS, G, 10);
1248}
1249
1250#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
1252void SDNode::dumprWithDepth(const SelectionDAG *G, unsigned depth) const {
1253 printrWithDepth(dbgs(), G, depth);
1254}
1255
1257 // Don't print impossibly deep things.
1258 dumprWithDepth(G, 10);
1259}
1260#endif
1261
1262void SDNode::print(raw_ostream &OS, const SelectionDAG *G) const {
1263 printr(OS, G);
1264 // Under VerboseDAGDumping divergence will be printed always.
1266 OS << " # D:1";
1267 for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
1268 if (i) OS << ", "; else OS << " ";
1269 printOperand(OS, G, getOperand(i));
1270 }
1271 if (DebugLoc DL = getDebugLoc()) {
1272 OS << ", ";
1273 DL.print(OS);
1274 }
1275 if (PrintSDNodeAddrs)
1276 OS << " ; " << this;
1277}
This file declares a class to represent arbitrary precision floating point values and provide a varie...
This file implements a class to represent arbitrary precision integral constant values and operations...
@ Scaled
MachineBasicBlock MachineBasicBlock::iterator DebugLoc DL
static GCRegistry::Add< ErlangGC > A("erlang", "erlang-compatible garbage collector")
#define LLVM_DUMP_METHOD
Mark debug helper function definitions like dump() that should not be stripped from debug builds.
Definition Compiler.h:672
This file contains the declarations for the subclasses of Constant, which represent the different fla...
const HexagonInstrInfo * TII
static bool hasNoSignedWrap(BinaryOperator &I)
static bool hasNoUnsignedWrap(BinaryOperator &I)
#define G(x, y, z)
Definition MD5.cpp:55
This file declares the MachineConstantPool class which is an abstract constant pool to keep track of ...
static Printable PrintNodeId(const SDNode &Node)
SmallPtrSet< const SDNode *, 32 > VisitedSDNodeSet
static cl::opt< bool > VerboseDAGDumping("dag-dump-verbose", cl::Hidden, cl::desc("Display more information when dumping selection " "DAG nodes."))
static bool printOperand(raw_ostream &OS, const SelectionDAG *G, const SDValue Value)
static bool shouldPrintInline(const SDNode &Node, const SelectionDAG *G)
Return true if this node is so simple that we should just print it inline if it appears as an operand...
static void DumpNodesr(raw_ostream &OS, const SDNode *N, unsigned indent, const SelectionDAG *G, VisitedSDNodeSet &once)
static cl::opt< bool > PrintSDNodeAddrs("print-sdnode-addrs", cl::Hidden, cl::desc("Print addresses of SDNodes when dumping"))
static void printMemOperand(raw_ostream &OS, const MachineMemOperand &MMO, const MachineFunction *MF, const Module *M, const MachineFrameInfo *MFI, const TargetInstrInfo *TII, LLVMContext &Ctx)
static void DumpNodes(const SDNode *N, unsigned indent, const SelectionDAG *G)
static void printrWithDepthHelper(raw_ostream &OS, const SDNode *N, const SelectionDAG *G, unsigned depth, unsigned indent)
This file defines the SmallPtrSet class.
This file contains some functions that are useful when dealing with strings.
This file describes how to lower LLVM code to machine code.
static const fltSemantics & IEEEsingle()
Definition APFloat.h:297
static const fltSemantics & IEEEdouble()
Definition APFloat.h:298
A debug info location.
Definition DebugLoc.h:126
Module * getParent()
Get the module that this global value is contained inside of...
This is an important class for using LLVM in a threaded context.
Definition LLVMContext.h:68
This class is used to represent ISD::LOAD nodes.
Metadata node.
Definition Metadata.h:1069
The MachineFrameInfo class represents an abstract stack frame until prolog/epilog code is inserted.
MachineFrameInfo & getFrameInfo()
getFrameInfo - Return the frame info object for the current function.
Function & getFunction()
Return the LLVM function that this machine code represents.
A description of a memory reference used in the backend.
LLVM_ABI void print(raw_ostream &OS, ModuleSlotTracker &MST, SmallVectorImpl< StringRef > &SSNs, const LLVMContext &Context, const MachineFrameInfo *MFI, const TargetInstrInfo *TII) const
Support for operator<<.
An SDNode that represents everything that will be needed to construct a MachineInstr.
ArrayRef< MachineMemOperand * >::const_iterator mmo_iterator
This class is used to represent an MLOAD node.
This class is used to represent an MSTORE node.
This is an abstract virtual class for memory operations.
Manage lifetime of a slot tracker for printing IR.
void incorporateFunction(const Function &F)
Incorporate the given function.
A Module instance is used to store all the information related to an LLVM module.
Definition Module.h:67
Simple wrapper around std::function<void(raw_ostream&)>.
Definition Printable.h:38
Holds the information for a single machine location through SDISel; either an SDNode,...
@ VREG
Value is a virtual register.
@ FRAMEIX
Value is contents of a stack location.
@ SDNODE
Value is the result of an expression.
@ CONST
Value is a constant.
Holds the information from a dbg_value node through SDISel.
bool isEmitted() const
LLVM_DUMP_METHOD void print(raw_ostream &OS) const
unsigned getOrder() const
Returns the SDNodeOrder.
LLVM_DUMP_METHOD void dump() const
bool isInvalidated() const
ArrayRef< SDDbgOperand > getLocationOps() const
bool isIndirect() const
Returns whether this is an indirect value.
bool isVariadic() const
Represents one node in the SelectionDAG.
bool isMachineOpcode() const
Test if this node has a post-isel opcode, directly corresponding to a MachineInstr opcode.
LLVM_ABI void dumprFull(const SelectionDAG *G=nullptr) const
printrFull to dbgs().
int getNodeId() const
Return the unique node id.
LLVM_ABI void dump() const
Dump this node, for debugging.
unsigned getOpcode() const
Return the SelectionDAG opcode value for this node.
bool isDivergent() const
static LLVM_ABI const char * getIndexedModeName(ISD::MemIndexedMode AM)
unsigned getIROrder() const
Return the node ordering.
bool getHasDebugValue() const
LLVM_ABI void dumpr() const
Dump (recursively) this node and its use-def subgraph.
SDNodeFlags getFlags() const
LLVM_ABI std::string getOperationName(const SelectionDAG *G=nullptr) const
Return the opcode of this operation for printing.
LLVM_ABI void printrFull(raw_ostream &O, const SelectionDAG *G=nullptr) const
Print a SelectionDAG node and all children down to the leaves.
friend class SelectionDAG
LLVM_ABI void printr(raw_ostream &OS, const SelectionDAG *G=nullptr) const
uint64_t getAsZExtVal() const
Helper method returns the zero-extended integer value of a ConstantSDNode.
unsigned getNumValues() const
Return the number of values defined/returned by this operator.
unsigned getNumOperands() const
Return the number of values used by this operation.
unsigned getMachineOpcode() const
This may only be called if isMachineOpcode returns true.
const SDValue & getOperand(unsigned Num) const
LLVM_ABI void print(raw_ostream &OS, const SelectionDAG *G=nullptr) const
const DebugLoc & getDebugLoc() const
Return the source location info.
LLVM_ABI void printrWithDepth(raw_ostream &O, const SelectionDAG *G=nullptr, unsigned depth=100) const
Print a SelectionDAG node and children up to depth "depth." The given SelectionDAG allows target-spec...
LLVM_ABI void dumprWithDepth(const SelectionDAG *G=nullptr, unsigned depth=100) const
printrWithDepth to dbgs().
EVT getValueType(unsigned ResNo) const
Return the type of a specified result.
LLVM_ABI void print_details(raw_ostream &OS, const SelectionDAG *G) const
LLVM_ABI void print_types(raw_ostream &OS, const SelectionDAG *G) const
Unlike LLVM values, Selection DAG nodes may return multiple values as the result of a computation.
Targets can subclass this to parameterize the SelectionDAG lowering and instruction selection process...
virtual const char * getTargetNodeName(unsigned Opcode) const
Returns the name of the given target-specific opcode, suitable for debug printing.
This is used to represent a portion of an LLVM function in a low-level Data Dependence DAG representa...
const SDValue & getRoot() const
Return the root tag of the SelectionDAG.
SDDbgInfo::DbgIterator ByvalParmDbgEnd() const
SDDbgInfo::DbgIterator ByvalParmDbgBegin() const
SDDbgInfo::DbgIterator DbgEnd() const
LLVM_ABI void dump() const
Dump the textual format of this DAG.
SDDbgInfo::DbgIterator DbgBegin() const
iterator_range< allnodes_iterator > allnodes()
LLVM_ABI SDValue getNode(unsigned Opcode, const SDLoc &DL, EVT VT, ArrayRef< SDUse > Ops)
Gets or creates the specified node.
LLVM_ABI void getTopologicallyOrderedNodes(SmallVectorImpl< const SDNode * > &SortedNodes) const
Get all the nodes in their topological order without modifying any states.
This SDNode is used to implement the code generator support for the llvm IR shufflevector instruction...
std::pair< iterator, bool > insert(PtrType Ptr)
Inserts Ptr if and only if there is no element in the container equal to Ptr.
SmallPtrSet - This class implements a set which is optimized for holding SmallSize or less elements.
void reserve(size_type N)
This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.
An SDNode that holds an arbitrary LLVM IR Value.
This class is used to represent ISD::STORE nodes.
std::string str() const
Get the contents as an std::string.
Definition StringRef.h:222
Completely target-dependent object reference.
TargetInstrInfo - Interface to description of machine instruction set.
This class defines information used to lower LLVM code to legal SelectionDAG operators that the targe...
virtual const char * getTargetNodeName(unsigned Opcode) const
This method returns the name of a target specific DAG node.
This class is used to represent EVT's, which are used to parameterize some operations.
LLVM Value Representation.
Definition Value.h:75
LLVM_ABI StringRef getName() const
Return a constant reference to the value's name.
Definition Value.cpp:319
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition raw_ostream.h:53
virtual raw_ostream & changeColor(enum Colors Color, bool Bold=false, bool BG=false)
Changes the foreground color of text that will be output from this point forward.
virtual raw_ostream & resetColor()
Resets the colors to terminal defaults.
static constexpr Colors BLACK
static constexpr Colors GREEN
raw_ostream & indent(unsigned NumSpaces)
indent - Insert 'NumSpaces' spaces.
static constexpr Colors BLUE
static constexpr Colors RED
static constexpr Colors MAGENTA
static constexpr Colors YELLOW
static constexpr Colors CYAN
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
Abstract Attribute helper functions.
Definition Attributor.h:165
@ SETCC
SetCC operator - This evaluates to a true value iff the condition is true.
Definition ISDOpcodes.h:829
@ MERGE_VALUES
MERGE_VALUES - This node takes multiple discrete operands and returns them all as its individual resu...
Definition ISDOpcodes.h:261
@ STACKRESTORE
STACKRESTORE has two operands, an input chain and a pointer to restore to it returns an output chain.
@ STACKSAVE
STACKSAVE - STACKSAVE has one operand, an input chain.
@ TargetConstantPool
Definition ISDOpcodes.h:189
@ CONVERGENCECTRL_ANCHOR
The llvm.experimental.convergence.* intrinsics.
@ MDNODE_SDNODE
MDNODE_SDNODE - This is a node that holdes an MDNode*, which is used to reference metadata in the IR.
@ STRICT_FSETCC
STRICT_FSETCC/STRICT_FSETCCS - Constrained versions of SETCC, used for floating-point operands only.
Definition ISDOpcodes.h:513
@ PTRADD
PTRADD represents pointer arithmetic semantics, for targets that opt in using shouldPreservePtrArith(...
@ DELETED_NODE
DELETED_NODE - This is an illegal value that is used to catch errors.
Definition ISDOpcodes.h:45
@ POISON
POISON - A poison node.
Definition ISDOpcodes.h:236
@ SET_FPENV
Sets the current floating-point environment.
@ PARTIAL_REDUCE_SMLA
PARTIAL_REDUCE_[U|S]MLA(Accumulator, Input1, Input2) The partial reduction nodes sign or zero extend ...
@ LOOP_DEPENDENCE_RAW_MASK
@ VECREDUCE_SEQ_FADD
Generic reduction nodes.
@ COND_LOOP
COND_LOOP is a conditional branch to self, used for implementing efficient conditional traps.
@ MLOAD
Masked load and store - consecutive vector load and store operations with additional mask operand tha...
@ EH_SJLJ_LONGJMP
OUTCHAIN = EH_SJLJ_LONGJMP(INCHAIN, buffer) This corresponds to the eh.sjlj.longjmp intrinsic.
Definition ISDOpcodes.h:168
@ FGETSIGN
INT = FGETSIGN(FP) - Return the sign bit of the specified floating point value as an integer 0/1 valu...
Definition ISDOpcodes.h:540
@ SMUL_LOHI
SMUL_LOHI/UMUL_LOHI - Multiply two integers of type iN, producing a signed/unsigned value of type i[2...
Definition ISDOpcodes.h:275
@ INSERT_SUBVECTOR
INSERT_SUBVECTOR(VECTOR1, VECTOR2, IDX) - Returns a vector with VECTOR2 inserted into VECTOR1.
Definition ISDOpcodes.h:602
@ STACKADDRESS
STACKADDRESS - Represents the llvm.stackaddress intrinsic.
Definition ISDOpcodes.h:127
@ JUMP_TABLE_DEBUG_INFO
JUMP_TABLE_DEBUG_INFO - Jumptable debug info.
@ BSWAP
Byte Swap and Counting operators.
Definition ISDOpcodes.h:789
@ SMULFIX
RESULT = [US]MULFIX(LHS, RHS, SCALE) - Perform fixed point multiplication on 2 integers with the same...
Definition ISDOpcodes.h:394
@ VAEND
VAEND, VASTART - VAEND and VASTART have three operands: an input chain, pointer, and a SRCVALUE.
@ TargetBlockAddress
Definition ISDOpcodes.h:191
@ ATOMIC_STORE
OUTCHAIN = ATOMIC_STORE(INCHAIN, val, ptr) This corresponds to "store atomic" instruction.
@ ADDC
Carry-setting nodes for multiple precision addition and subtraction.
Definition ISDOpcodes.h:294
@ FRAME_TO_ARGS_OFFSET
FRAME_TO_ARGS_OFFSET - This node represents offset from frame pointer to first (possible) on-stack ar...
Definition ISDOpcodes.h:145
@ RESET_FPENV
Set floating-point environment to default state.
@ FMAD
FMAD - Perform a * b + c, while getting the same result as the separately rounded operations.
Definition ISDOpcodes.h:524
@ ADD
Simple integer binary arithmetic operators.
Definition ISDOpcodes.h:264
@ LOAD
LOAD and STORE have token chains as their first operand, then the same operands as an LLVM load/store...
@ SMULFIXSAT
Same as the corresponding unsaturated fixed point instructions, but the result is clamped between the...
Definition ISDOpcodes.h:400
@ SET_FPMODE
Sets the current dynamic floating-point control modes.
@ ANY_EXTEND
ANY_EXTEND - Used for integer types. The high bits are undefined.
Definition ISDOpcodes.h:863
@ CTTZ_ELTS
Returns the number of number of trailing (least significant) zero elements in a vector.
@ ATOMIC_LOAD_USUB_COND
@ FMA
FMA - Perform a * b + c with no intermediate rounding step.
Definition ISDOpcodes.h:520
@ VECTOR_FIND_LAST_ACTIVE
Finds the index of the last active mask element Operands: Mask.
@ FMODF
FMODF - Decomposes the operand into integral and fractional parts, each having the same type and sign...
@ PSEUDO_FMIN
PSEUDO_FMIN is strictly equivalent to op0 olt op1 ?
@ FATAN2
FATAN2 - atan2, inspired by libm.
@ FSINCOSPI
FSINCOSPI - Compute both the sine and cosine times pi more accurately than FSINCOS(pi*x),...
@ INTRINSIC_VOID
OUTCHAIN = INTRINSIC_VOID(INCHAIN, INTRINSICID, arg1, arg2, ...) This node represents a target intrin...
Definition ISDOpcodes.h:220
@ EH_SJLJ_SETUP_DISPATCH
OUTCHAIN = EH_SJLJ_SETUP_DISPATCH(INCHAIN) The target initializes the dispatch table here.
Definition ISDOpcodes.h:172
@ GlobalAddress
Definition ISDOpcodes.h:88
@ ATOMIC_CMP_SWAP_WITH_SUCCESS
Val, Success, OUTCHAIN = ATOMIC_CMP_SWAP_WITH_SUCCESS(INCHAIN, ptr, cmp, swap) N.b.
@ STRICT_FMINIMUM
Definition ISDOpcodes.h:473
@ SINT_TO_FP
[SU]INT_TO_FP - These operators convert integers (whose interpreted sign depends on the first letter)...
Definition ISDOpcodes.h:890
@ CONCAT_VECTORS
CONCAT_VECTORS(VECTOR0, VECTOR1, ...) - Given a number of values of vector type with the same length ...
Definition ISDOpcodes.h:586
@ VECREDUCE_FMAX
FMIN/FMAX nodes can have flags, for NaN/NoNaN variants.
@ FADD
Simple binary floating point operators.
Definition ISDOpcodes.h:417
@ VECREDUCE_FMAXIMUM
FMINIMUM/FMAXIMUM nodes propatate NaNs and signed zeroes using the llvm.minimum and llvm....
@ ABS
ABS - Determine the unsigned absolute value of a signed integer value of the same bitwidth.
Definition ISDOpcodes.h:749
@ MEMBARRIER
MEMBARRIER - Compiler barrier only; generate a no-op.
@ ATOMIC_FENCE
OUTCHAIN = ATOMIC_FENCE(INCHAIN, ordering, scope) This corresponds to the fence instruction.
@ RESET_FPMODE
Sets default dynamic floating-point control modes.
@ SIGN_EXTEND_VECTOR_INREG
SIGN_EXTEND_VECTOR_INREG(Vector) - This operator represents an in-register sign-extension of the low ...
Definition ISDOpcodes.h:920
@ SDIVREM
SDIVREM/UDIVREM - Divide two integers and produce both a quotient and remainder result.
Definition ISDOpcodes.h:280
@ FP16_TO_FP
FP16_TO_FP, FP_TO_FP16 - These operators are used to perform promotions and truncation for half-preci...
@ FMULADD
FMULADD - Performs a * b + c, with, or without, intermediate rounding.
Definition ISDOpcodes.h:530
@ FPTRUNC_ROUND
FPTRUNC_ROUND - This corresponds to the fptrunc_round intrinsic.
Definition ISDOpcodes.h:517
@ FAKE_USE
FAKE_USE represents a use of the operand but does not do anything.
@ BITCAST
BITCAST - This operator converts between integer, vector and FP values, as if the value was stored to...
@ STRICT_PSEUDO_FMAX
Definition ISDOpcodes.h:462
@ BUILD_PAIR
BUILD_PAIR - This is the opposite of EXTRACT_ELEMENT in some ways.
Definition ISDOpcodes.h:254
@ CLMUL
Carry-less multiplication operations.
Definition ISDOpcodes.h:780
@ INIT_TRAMPOLINE
INIT_TRAMPOLINE - This corresponds to the init_trampoline intrinsic.
@ FLDEXP
FLDEXP - ldexp, inspired by libm (op0 * 2**op1).
@ SDIVFIX
RESULT = [US]DIVFIX(LHS, RHS, SCALE) - Perform fixed point division on 2 integers with the same width...
Definition ISDOpcodes.h:407
@ STRICT_FSQRT
Constrained versions of libm-equivalent floating point intrinsics.
Definition ISDOpcodes.h:438
@ BUILTIN_OP_END
BUILTIN_OP_END - This must be the last enum value in this list.
@ GlobalTLSAddress
Definition ISDOpcodes.h:89
@ SRCVALUE
SRCVALUE - This is a node type that holds a Value* that is used to make reference to a value in the L...
@ CONVERT_FROM_ARBITRARY_FP
CONVERT_FROM_ARBITRARY_FP - This operator converts from an arbitrary floating-point represented as an...
@ EH_LABEL
EH_LABEL - Represents a label in mid basic block used to track locations needed for debug and excepti...
@ ATOMIC_LOAD_USUB_SAT
@ CTLZ_ZERO_POISON
Definition ISDOpcodes.h:798
@ EH_RETURN
OUTCHAIN = EH_RETURN(INCHAIN, OFFSET, HANDLER) - This node represents 'eh_return' gcc dwarf builtin,...
Definition ISDOpcodes.h:156
@ ANNOTATION_LABEL
ANNOTATION_LABEL - Represents a mid basic block label used by annotations.
@ SET_ROUNDING
Set rounding mode.
Definition ISDOpcodes.h:985
@ CONVERGENCECTRL_GLUE
This does not correspond to any convergence control intrinsic.
@ PARTIAL_REDUCE_UMLA
@ SIGN_EXTEND
Conversion operators.
Definition ISDOpcodes.h:854
@ AVGCEILS
AVGCEILS/AVGCEILU - Rounding averaging add - Add two integers using an integer of type i[N+2],...
Definition ISDOpcodes.h:717
@ STRICT_UINT_TO_FP
Definition ISDOpcodes.h:487
@ SCALAR_TO_VECTOR
SCALAR_TO_VECTOR(VAL) - This represents the operation of loading a scalar value into element 0 of the...
Definition ISDOpcodes.h:667
@ PREALLOCATED_SETUP
PREALLOCATED_SETUP - This has 2 operands: an input chain and a SRCVALUE with the preallocated call Va...
@ READSTEADYCOUNTER
READSTEADYCOUNTER - This corresponds to the readfixedcounter intrinsic.
@ ADDROFRETURNADDR
ADDROFRETURNADDR - Represents the llvm.addressofreturnaddress intrinsic.
Definition ISDOpcodes.h:117
@ TargetExternalSymbol
Definition ISDOpcodes.h:190
@ CONVERGENCECTRL_ENTRY
@ BR
Control flow instructions. These all have token chains.
@ VECREDUCE_FADD
These reductions have relaxed evaluation order semantics, and have a single vector operand.
@ TargetJumpTable
Definition ISDOpcodes.h:188
@ TargetIndex
TargetIndex - Like a constant pool entry, but with completely target-dependent semantics.
Definition ISDOpcodes.h:198
@ PARTIAL_REDUCE_FMLA
@ PREFETCH
PREFETCH - This corresponds to a prefetch intrinsic.
@ STRICT_PSEUDO_FMIN
Definition ISDOpcodes.h:461
@ TRUNCATE_SSAT_U
Definition ISDOpcodes.h:883
@ FSINCOS
FSINCOS - Compute both fsin and fcos as a single operation.
@ SETCCCARRY
Like SetCC, ops #0 and #1 are the LHS and RHS operands to compare, but op #2 is a boolean indicating ...
Definition ISDOpcodes.h:837
@ FNEG
Perform various unary floating-point operations inspired by libm.
@ BR_CC
BR_CC - Conditional branch.
@ SSUBO
Same for subtraction.
Definition ISDOpcodes.h:352
@ PREALLOCATED_ARG
PREALLOCATED_ARG - This has 3 operands: an input chain, a SRCVALUE with the preallocated call Value,...
@ BRIND
BRIND - Indirect branch.
@ BR_JT
BR_JT - Jumptable branch.
@ GC_TRANSITION_START
GC_TRANSITION_START/GC_TRANSITION_END - These operators mark the beginning and end of GC transition s...
@ VECTOR_INTERLEAVE
VECTOR_INTERLEAVE(VEC1, VEC2, ...) - Returns N vectors from N input vectors, where N is the factor to...
Definition ISDOpcodes.h:637
@ STEP_VECTOR
STEP_VECTOR(IMM) - Returns a scalable vector whose lanes are comprised of a linear sequence of unsign...
Definition ISDOpcodes.h:693
@ FCANONICALIZE
Returns platform specific canonical encoding of a floating point number.
Definition ISDOpcodes.h:543
@ IS_FPCLASS
Performs a check of floating point class property, defined by IEEE-754.
Definition ISDOpcodes.h:550
@ SSUBSAT
RESULT = [US]SUBSAT(LHS, RHS) - Perform saturation subtraction on 2 integers with the same bit width ...
Definition ISDOpcodes.h:374
@ SELECT
Select(COND, TRUEVAL, FALSEVAL).
Definition ISDOpcodes.h:806
@ ATOMIC_LOAD
Val, OUTCHAIN = ATOMIC_LOAD(INCHAIN, ptr) This corresponds to "load atomic" instruction.
@ UNDEF
UNDEF - An undefined node.
Definition ISDOpcodes.h:233
@ EXTRACT_ELEMENT
EXTRACT_ELEMENT - This is used to get the lower or upper (determined by a Constant,...
Definition ISDOpcodes.h:247
@ SPLAT_VECTOR
SPLAT_VECTOR(VAL) - Returns a vector with the scalar value VAL duplicated in all lanes.
Definition ISDOpcodes.h:674
@ AssertAlign
AssertAlign - These nodes record if a register contains a value that has a known alignment and the tr...
Definition ISDOpcodes.h:69
@ VACOPY
VACOPY - VACOPY has 5 operands: an input chain, a destination pointer, a source pointer,...
@ GET_ACTIVE_LANE_MASK
GET_ACTIVE_LANE_MASK - this corrosponds to the llvm.get.active.lane.mask intrinsic.
@ BasicBlock
Various leaf nodes.
Definition ISDOpcodes.h:81
@ CopyFromReg
CopyFromReg - This node indicates that the input value is a virtual or physical register that is defi...
Definition ISDOpcodes.h:230
@ SADDO
RESULT, BOOL = [SU]ADDO(LHS, RHS) - Overflow-aware nodes for addition.
Definition ISDOpcodes.h:348
@ TargetGlobalAddress
TargetGlobalAddress - Like GlobalAddress, but the DAG does no folding or anything else with this node...
Definition ISDOpcodes.h:185
@ CTLS
Count leading redundant sign bits.
Definition ISDOpcodes.h:802
@ VECREDUCE_ADD
Integer reductions may have a result type larger than the vector element type.
@ GET_ROUNDING
Returns current rounding mode: -1 Undefined 0 Round to 0 1 Round to nearest, ties to even 2 Round to ...
Definition ISDOpcodes.h:980
@ STRICT_FP_TO_FP16
@ MULHU
MULHU/MULHS - Multiply high - Multiply two integers of type iN, producing an unsigned/signed value of...
Definition ISDOpcodes.h:706
@ CLEANUPRET
CLEANUPRET - Represents a return from a cleanup block funclet.
@ ATOMIC_LOAD_FMAXIMUM
@ GET_FPMODE
Reads the current dynamic floating-point control modes.
@ STRICT_FP16_TO_FP
@ GET_FPENV
Gets the current floating-point environment.
@ SHL
Shift and rotation operations.
Definition ISDOpcodes.h:771
@ AssertNoFPClass
AssertNoFPClass - These nodes record if a register contains a float value that is known to be not som...
Definition ISDOpcodes.h:78
@ VECTOR_SHUFFLE
VECTOR_SHUFFLE(VEC1, VEC2) - Returns a vector, of the same type as VEC1/VEC2.
Definition ISDOpcodes.h:651
@ PtrAuthGlobalAddress
A ptrauth constant.
Definition ISDOpcodes.h:100
@ EXTRACT_SUBVECTOR
EXTRACT_SUBVECTOR(VECTOR, IDX) - Returns a subvector from VECTOR.
Definition ISDOpcodes.h:616
@ FMINNUM_IEEE
FMINNUM_IEEE/FMAXNUM_IEEE - Perform floating-point minimumNumber or maximumNumber on two values,...
@ STRICT_FMAXIMUM
Definition ISDOpcodes.h:472
@ EntryToken
EntryToken - This is the marker used to indicate the start of a region.
Definition ISDOpcodes.h:48
@ READ_REGISTER
READ_REGISTER, WRITE_REGISTER - This node represents llvm.register on the DAG, which implements the n...
Definition ISDOpcodes.h:139
@ EXTRACT_VECTOR_ELT
EXTRACT_VECTOR_ELT(VECTOR, IDX) - Returns a single element from VECTOR identified by the (potentially...
Definition ISDOpcodes.h:578
@ CopyToReg
CopyToReg - This node has three operands: a chain, a register number to set to this value,...
Definition ISDOpcodes.h:224
@ ZERO_EXTEND
ZERO_EXTEND - Used for integer types, zeroing the new bits.
Definition ISDOpcodes.h:860
@ TargetConstantFP
Definition ISDOpcodes.h:180
@ DEBUGTRAP
DEBUGTRAP - Trap intended to get the attention of a debugger.
@ SELECT_CC
Select with condition operator - This selects between a true value and a false value (ops #2 and #3) ...
Definition ISDOpcodes.h:821
@ VSCALE
VSCALE(IMM) - Returns the runtime scaling factor used to calculate the number of elements within a sc...
@ ATOMIC_CMP_SWAP
Val, OUTCHAIN = ATOMIC_CMP_SWAP(INCHAIN, ptr, cmp, swap) For double-word atomic operations: ValLo,...
@ LOCAL_RECOVER
LOCAL_RECOVER - Represents the llvm.localrecover intrinsic.
Definition ISDOpcodes.h:135
@ FMINNUM
FMINNUM/FMAXNUM - Perform floating-point minimum maximum on two values, following IEEE-754 definition...
@ UBSANTRAP
UBSANTRAP - Trap with an immediate describing the kind of sanitizer failure.
@ SSHLSAT
RESULT = [US]SHLSAT(LHS, RHS) - Perform saturation left shift.
Definition ISDOpcodes.h:386
@ PATCHPOINT
The llvm.experimental.patchpoint.
@ SMULO
Same for multiplication.
Definition ISDOpcodes.h:356
@ ATOMIC_LOAD_FMINIMUM
@ DYNAMIC_STACKALLOC
DYNAMIC_STACKALLOC - Allocate some number of bytes on the stack aligned to a specified boundary.
@ TargetFrameIndex
Definition ISDOpcodes.h:187
@ VECTOR_SPLICE_LEFT
VECTOR_SPLICE_LEFT(VEC1, VEC2, OFFSET) - Shifts CONCAT_VECTORS(VEC1, VEC2) left by OFFSET elements an...
Definition ISDOpcodes.h:655
@ ANY_EXTEND_VECTOR_INREG
ANY_EXTEND_VECTOR_INREG(Vector) - This operator represents an in-register any-extension of the low la...
Definition ISDOpcodes.h:909
@ SIGN_EXTEND_INREG
SIGN_EXTEND_INREG - This operator atomically performs a SHL/SRA pair to sign extend a small value in ...
Definition ISDOpcodes.h:898
@ SMIN
[US]{MIN/MAX} - Binary minimum or maximum of signed or unsigned integers.
Definition ISDOpcodes.h:729
@ MASKED_UDIV
Masked vector arithmetic that returns poison on disabled lanes.
@ VECTOR_REVERSE
VECTOR_REVERSE(VECTOR) - Returns a vector, of the same type as VECTOR, whose elements are shuffled us...
Definition ISDOpcodes.h:642
@ LIFETIME_START
This corresponds to the llvm.lifetime.
@ SDIVFIXSAT
Same as the corresponding unsaturated fixed point instructions, but the result is clamped between the...
Definition ISDOpcodes.h:413
@ FP_EXTEND
X = FP_EXTEND(Y) - Extend a smaller FP type into a larger FP type.
Definition ISDOpcodes.h:988
@ GLOBAL_OFFSET_TABLE
The address of the GOT.
Definition ISDOpcodes.h:103
@ VSELECT
Select with a vector condition (op #0) and two vector operands (ops #1 and #2), returning a vector re...
Definition ISDOpcodes.h:815
@ UADDO_CARRY
Carry-using nodes for multiple precision addition and subtraction.
Definition ISDOpcodes.h:328
@ STRICT_SINT_TO_FP
STRICT_[US]INT_TO_FP - Convert a signed or unsigned integer to a floating point value.
Definition ISDOpcodes.h:486
@ MGATHER
Masked gather and scatter - load and store operations for a vector of random addresses with additiona...
@ HANDLENODE
HANDLENODE node - Used as a handle for various purposes.
@ STRICT_BF16_TO_FP
@ PCMARKER
PCMARKER - This corresponds to the pcmarker intrinsic.
@ STRICT_FROUNDEVEN
Definition ISDOpcodes.h:466
@ INLINEASM_BR
INLINEASM_BR - Branching version of inline asm. Used by asm-goto.
@ EH_DWARF_CFA
EH_DWARF_CFA - This node represents the pointer to the DWARF Canonical Frame Address (CFA),...
Definition ISDOpcodes.h:150
@ BF16_TO_FP
BF16_TO_FP, FP_TO_BF16 - These operators are used to perform promotions and truncation for bfloat16.
@ FRAMEADDR
FRAMEADDR, RETURNADDR - These nodes represent llvm.frameaddress and llvm.returnaddress on the DAG.
Definition ISDOpcodes.h:110
@ ATOMIC_LOAD_UDEC_WRAP
@ STRICT_FP_TO_UINT
Definition ISDOpcodes.h:480
@ PEXT
Parallel bit extract (compress) and parallel bit deposit (expand).
Definition ISDOpcodes.h:785
@ STRICT_FP_ROUND
X = STRICT_FP_ROUND(Y, TRUNC) - Rounding 'Y' from a larger floating point type down to the precision ...
Definition ISDOpcodes.h:502
@ STRICT_FP_TO_SINT
STRICT_FP_TO_[US]INT - Convert a floating point value to a signed or unsigned integer.
Definition ISDOpcodes.h:479
@ FMINIMUM
FMINIMUM/FMAXIMUM - NaN-propagating minimum/maximum that also treat -0.0 as less than 0....
@ FP_TO_SINT
FP_TO_[US]INT - Convert a floating point value to a signed or unsigned integer.
Definition ISDOpcodes.h:936
@ READCYCLECOUNTER
READCYCLECOUNTER - This corresponds to the readcyclecounter intrinsic.
@ TargetConstant
TargetConstant* - Like Constant*, but the DAG does not do any folding, simplification,...
Definition ISDOpcodes.h:179
@ STRICT_FP_EXTEND
X = STRICT_FP_EXTEND(Y) - Extend a smaller FP type into a larger FP type.
Definition ISDOpcodes.h:507
@ RELOC_NONE
Issue a no-op relocation against a given symbol at the current location.
@ AND
Bitwise operators - logical and, logical or, logical xor.
Definition ISDOpcodes.h:741
@ TRAP
TRAP - Trapping instruction.
@ INTRINSIC_WO_CHAIN
RESULT = INTRINSIC_WO_CHAIN(INTRINSICID, arg1, arg2, ...) This node represents a target intrinsic fun...
Definition ISDOpcodes.h:205
@ GET_FPENV_MEM
Gets the current floating-point environment.
@ PSEUDO_PROBE
Pseudo probe for AutoFDO, as a place holder in a basic block to improve the sample counts quality.
@ STRICT_FP_TO_BF16
@ SCMP
[US]CMP - 3-way comparison of signed or unsigned integers.
Definition ISDOpcodes.h:737
@ CARRY_FALSE
CARRY_FALSE - This node is used when folding other nodes, like ADDC/SUBC, which indicate the carry re...
Definition ISDOpcodes.h:285
@ AVGFLOORS
AVGFLOORS/AVGFLOORU - Averaging add - Add two integers using an integer of type i[N+1],...
Definition ISDOpcodes.h:712
@ VECTOR_SPLICE_RIGHT
VECTOR_SPLICE_RIGHT(VEC1, VEC2, OFFSET) - Shifts CONCAT_VECTORS(VEC1,VEC2) right by OFFSET elements a...
Definition ISDOpcodes.h:659
@ ADDE
Carry-using nodes for multiple precision addition and subtraction.
Definition ISDOpcodes.h:304
@ STRICT_FADD
Constrained versions of the binary floating point operators.
Definition ISDOpcodes.h:427
@ STACKMAP
The llvm.experimental.stackmap intrinsic.
@ SPLAT_VECTOR_PARTS
SPLAT_VECTOR_PARTS(SCALAR1, SCALAR2, ...) - Returns a vector with the scalar values joined together a...
Definition ISDOpcodes.h:683
@ FREEZE
FREEZE - FREEZE(VAL) returns an arbitrary value if VAL is UNDEF (or is evaluated to UNDEF),...
Definition ISDOpcodes.h:241
@ INSERT_VECTOR_ELT
INSERT_VECTOR_ELT(VECTOR, VAL, IDX) - Returns VECTOR with the element at IDX replaced with VAL.
Definition ISDOpcodes.h:567
@ TokenFactor
TokenFactor - This node takes multiple tokens as input and produces a single token result.
Definition ISDOpcodes.h:53
@ ATOMIC_SWAP
Val, OUTCHAIN = ATOMIC_SWAP(INCHAIN, ptr, amt) Val, OUTCHAIN = ATOMIC_LOAD_[OpName](INCHAIN,...
@ CTTZ_ZERO_POISON
Bit counting operators with a poisoned result for zero inputs.
Definition ISDOpcodes.h:797
@ ExternalSymbol
Definition ISDOpcodes.h:93
@ FFREXP
FFREXP - frexp, extract fractional and exponent component of a floating-point value.
@ FP_ROUND
X = FP_ROUND(Y, TRUNC) - Rounding 'Y' from a larger floating point type down to the precision of the ...
Definition ISDOpcodes.h:969
@ VECTOR_COMPRESS
VECTOR_COMPRESS(Vec, Mask, Passthru) consecutively place vector elements based on mask e....
Definition ISDOpcodes.h:701
@ SPONENTRY
SPONENTRY - Represents the llvm.sponentry intrinsic.
Definition ISDOpcodes.h:122
@ CLEAR_CACHE
llvm.clear_cache intrinsic Operands: Input Chain, Start Addres, End Address Outputs: Output Chain
@ CONVERGENCECTRL_LOOP
@ ZERO_EXTEND_VECTOR_INREG
ZERO_EXTEND_VECTOR_INREG(Vector) - This operator represents an in-register zero-extension of the low ...
Definition ISDOpcodes.h:931
@ ADDRSPACECAST
ADDRSPACECAST - This operator converts between pointers of different address spaces.
@ EXPERIMENTAL_VECTOR_HISTOGRAM
Experimental vector histogram intrinsic Operands: Input Chain, Inc, Mask, Base, Index,...
@ INLINEASM
INLINEASM - Represents an inline asm block.
@ STRICT_FNEARBYINT
Definition ISDOpcodes.h:458
@ FP_TO_SINT_SAT
FP_TO_[US]INT_SAT - Convert floating point value in operand 0 to a signed or unsigned scalar integer ...
Definition ISDOpcodes.h:955
@ VECREDUCE_FMINIMUM
@ EH_SJLJ_SETJMP
RESULT, OUTCHAIN = EH_SJLJ_SETJMP(INCHAIN, buffer) This corresponds to the eh.sjlj....
Definition ISDOpcodes.h:162
@ TRUNCATE
TRUNCATE - Completely drop the high bits.
Definition ISDOpcodes.h:866
@ VAARG
VAARG - VAARG has four operands: an input chain, a pointer, a SRCVALUE, and the alignment.
@ BRCOND
BRCOND - Conditional branch.
@ VECREDUCE_SEQ_FMUL
@ CONVERT_TO_ARBITRARY_FP
CONVERT_TO_ARBITRARY_FP - Converts a native FP value to an arbitrary floating-point format,...
@ SHL_PARTS
SHL_PARTS/SRA_PARTS/SRL_PARTS - These operators are used for expanded integer shift operations.
Definition ISDOpcodes.h:843
@ CATCHRET
CATCHRET - Represents a return from a catch block funclet.
@ GC_TRANSITION_END
@ AssertSext
AssertSext, AssertZext - These nodes record if a register contains a value that has already been zero...
Definition ISDOpcodes.h:62
@ ATOMIC_LOAD_UINC_WRAP
@ FCOPYSIGN
FCOPYSIGN(X, Y) - Return the value of X with the sign of Y.
Definition ISDOpcodes.h:536
@ PARTIAL_REDUCE_SUMLA
@ SADDSAT
RESULT = [US]ADDSAT(LHS, RHS) - Perform saturation addition on 2 integers with the same bit width (W)...
Definition ISDOpcodes.h:365
@ CALLSEQ_START
CALLSEQ_START/CALLSEQ_END - These operators mark the beginning and end of a call sequence,...
@ VECTOR_DEINTERLEAVE
VECTOR_DEINTERLEAVE(VEC1, VEC2, ...) - Returns N vectors from N input vectors, where N is the factor ...
Definition ISDOpcodes.h:626
@ GET_DYNAMIC_AREA_OFFSET
GET_DYNAMIC_AREA_OFFSET - get offset from native SP to the address of the most recent dynamic alloca.
@ CTTZ_ELTS_ZERO_POISON
@ SET_FPENV_MEM
Sets the current floating point environment.
@ FMINIMUMNUM
FMINIMUMNUM/FMAXIMUMNUM - minimumnum/maximumnum that is same with FMINNUM_IEEE and FMAXNUM_IEEE besid...
@ TRUNCATE_SSAT_S
TRUNCATE_[SU]SAT_[SU] - Truncate for saturated operand [SU] located in middle, prefix for SAT means i...
Definition ISDOpcodes.h:881
@ ABDS
ABDS/ABDU - Absolute difference - Return the absolute difference between two numbers interpreted as s...
Definition ISDOpcodes.h:724
@ ADJUST_TRAMPOLINE
ADJUST_TRAMPOLINE - This corresponds to the adjust_trampoline intrinsic.
@ TRUNCATE_USAT_U
Definition ISDOpcodes.h:885
@ SADDO_CARRY
Carry-using overflow-aware nodes for multiple precision addition and subtraction.
Definition ISDOpcodes.h:338
@ INTRINSIC_W_CHAIN
RESULT,OUTCHAIN = INTRINSIC_W_CHAIN(INCHAIN, INTRINSICID, arg1, ...) This node represents a target in...
Definition ISDOpcodes.h:213
@ TargetGlobalTLSAddress
Definition ISDOpcodes.h:186
@ ABS_MIN_POISON
ABS with a poison result for INT_MIN.
Definition ISDOpcodes.h:753
@ BUILD_VECTOR
BUILD_VECTOR(ELT0, ELT1, ELT2, ELT3,...) - Return a fixed-width vector with the specified,...
Definition ISDOpcodes.h:558
@ LOOP_DEPENDENCE_WAR_MASK
The llvm.loop.dependence.
MemIndexedMode
MemIndexedMode enum - This enum defines the load / store indexed addressing modes.
LLVM_ABI StringRef getBaseName(ID id)
Return the LLVM name for an intrinsic, without encoded types for overloading, such as "llvm....
This is an optimization pass for GlobalISel generic memory operations.
decltype(auto) dyn_cast(const From &Val)
dyn_cast<X> - Return the argument parameter cast to the specified type.
Definition Casting.h:643
iterator_range< T > make_range(T x, T y)
Convenience function for iterating over sub-ranges.
void interleaveComma(const Container &c, StreamT &os, UnaryFunctor each_fn)
Definition STLExtras.h:2313
std::string utostr(uint64_t X, bool isNeg=false)
decltype(auto) get(const PointerIntPair< PointerTy, IntBits, IntType, PtrTraits, Info > &Pair)
LLVM_ABI raw_ostream & dbgs()
dbgs() - This returns a reference to a raw_ostream for debugging messages.
Definition Debug.cpp:209
bool isa(const From &Val)
isa<X> - Return true if the parameter to the template is an instance of one of the template type argu...
Definition Casting.h:547
DWARFExpression::Operation Op
decltype(auto) cast(const From &Val)
cast<X> - Return the argument parameter cast to the specified type.
Definition Casting.h:559
LLVM_ABI Printable printReg(Register Reg, const TargetRegisterInfo *TRI=nullptr, unsigned SubIdx=0, const MachineRegisterInfo *MRI=nullptr)
Prints virtual and physical registers with or without a TRI instance.
#define N
LLVM_ABI std::string getEVTString() const
This function returns value type as a string, e.g. "i32".