xref: /freebsd-src/contrib/llvm-project/llvm/lib/Passes/PassBuilder.cpp (revision 297eecfb02bb25902531dbb5c3b9a88caf8adf29)
1 //===- Parsing and selection of pass pipelines ----------------------------===//
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 /// \file
9 ///
10 /// This file provides the implementation of the PassBuilder based on our
11 /// static pass registry as well as related functionality. It also provides
12 /// helpers to aid in analyzing, debugging, and testing passes and pass
13 /// pipelines.
14 ///
15 //===----------------------------------------------------------------------===//
16 
17 #include "llvm/Passes/PassBuilder.h"
18 #include "llvm/ADT/StringSwitch.h"
19 #include "llvm/Analysis/AliasAnalysisEvaluator.h"
20 #include "llvm/Analysis/AliasSetTracker.h"
21 #include "llvm/Analysis/AssumptionCache.h"
22 #include "llvm/Analysis/BasicAliasAnalysis.h"
23 #include "llvm/Analysis/BlockFrequencyInfo.h"
24 #include "llvm/Analysis/BranchProbabilityInfo.h"
25 #include "llvm/Analysis/CFGPrinter.h"
26 #include "llvm/Analysis/CFGSCCPrinter.h"
27 #include "llvm/Analysis/CGSCCPassManager.h"
28 #include "llvm/Analysis/CallGraph.h"
29 #include "llvm/Analysis/CallPrinter.h"
30 #include "llvm/Analysis/CostModel.h"
31 #include "llvm/Analysis/CycleAnalysis.h"
32 #include "llvm/Analysis/DDG.h"
33 #include "llvm/Analysis/DDGPrinter.h"
34 #include "llvm/Analysis/Delinearization.h"
35 #include "llvm/Analysis/DemandedBits.h"
36 #include "llvm/Analysis/DependenceAnalysis.h"
37 #include "llvm/Analysis/DomPrinter.h"
38 #include "llvm/Analysis/DominanceFrontier.h"
39 #include "llvm/Analysis/FunctionPropertiesAnalysis.h"
40 #include "llvm/Analysis/GlobalsModRef.h"
41 #include "llvm/Analysis/IRSimilarityIdentifier.h"
42 #include "llvm/Analysis/IVUsers.h"
43 #include "llvm/Analysis/InlineAdvisor.h"
44 #include "llvm/Analysis/InlineSizeEstimatorAnalysis.h"
45 #include "llvm/Analysis/InstCount.h"
46 #include "llvm/Analysis/LazyCallGraph.h"
47 #include "llvm/Analysis/LazyValueInfo.h"
48 #include "llvm/Analysis/Lint.h"
49 #include "llvm/Analysis/LoopAccessAnalysis.h"
50 #include "llvm/Analysis/LoopCacheAnalysis.h"
51 #include "llvm/Analysis/LoopInfo.h"
52 #include "llvm/Analysis/LoopNestAnalysis.h"
53 #include "llvm/Analysis/MemDerefPrinter.h"
54 #include "llvm/Analysis/MemoryDependenceAnalysis.h"
55 #include "llvm/Analysis/MemorySSA.h"
56 #include "llvm/Analysis/ModuleDebugInfoPrinter.h"
57 #include "llvm/Analysis/ModuleSummaryAnalysis.h"
58 #include "llvm/Analysis/MustExecute.h"
59 #include "llvm/Analysis/ObjCARCAliasAnalysis.h"
60 #include "llvm/Analysis/OptimizationRemarkEmitter.h"
61 #include "llvm/Analysis/PhiValues.h"
62 #include "llvm/Analysis/PostDominators.h"
63 #include "llvm/Analysis/ProfileSummaryInfo.h"
64 #include "llvm/Analysis/RegionInfo.h"
65 #include "llvm/Analysis/ScalarEvolution.h"
66 #include "llvm/Analysis/ScalarEvolutionAliasAnalysis.h"
67 #include "llvm/Analysis/ScopedNoAliasAA.h"
68 #include "llvm/Analysis/StackLifetime.h"
69 #include "llvm/Analysis/StackSafetyAnalysis.h"
70 #include "llvm/Analysis/StructuralHash.h"
71 #include "llvm/Analysis/TargetLibraryInfo.h"
72 #include "llvm/Analysis/TargetTransformInfo.h"
73 #include "llvm/Analysis/TypeBasedAliasAnalysis.h"
74 #include "llvm/Analysis/UniformityAnalysis.h"
75 #include "llvm/CodeGen/AssignmentTrackingAnalysis.h"
76 #include "llvm/CodeGen/BasicBlockSectionsProfileReader.h"
77 #include "llvm/CodeGen/CallBrPrepare.h"
78 #include "llvm/CodeGen/CodeGenPrepare.h"
79 #include "llvm/CodeGen/DwarfEHPrepare.h"
80 #include "llvm/CodeGen/ExpandLargeDivRem.h"
81 #include "llvm/CodeGen/ExpandLargeFpConvert.h"
82 #include "llvm/CodeGen/ExpandMemCmp.h"
83 #include "llvm/CodeGen/GCMetadata.h"
84 #include "llvm/CodeGen/HardwareLoops.h"
85 #include "llvm/CodeGen/IndirectBrExpand.h"
86 #include "llvm/CodeGen/InterleavedAccess.h"
87 #include "llvm/CodeGen/InterleavedLoadCombine.h"
88 #include "llvm/CodeGen/JMCInstrumenter.h"
89 #include "llvm/CodeGen/LowerEmuTLS.h"
90 #include "llvm/CodeGen/SafeStack.h"
91 #include "llvm/CodeGen/SelectOptimize.h"
92 #include "llvm/CodeGen/ShadowStackGCLowering.h"
93 #include "llvm/CodeGen/SjLjEHPrepare.h"
94 #include "llvm/CodeGen/StackProtector.h"
95 #include "llvm/CodeGen/TypePromotion.h"
96 #include "llvm/CodeGen/WasmEHPrepare.h"
97 #include "llvm/CodeGen/WinEHPrepare.h"
98 #include "llvm/IR/DebugInfo.h"
99 #include "llvm/IR/Dominators.h"
100 #include "llvm/IR/PassManager.h"
101 #include "llvm/IR/PrintPasses.h"
102 #include "llvm/IR/SafepointIRVerifier.h"
103 #include "llvm/IR/Verifier.h"
104 #include "llvm/IRPrinter/IRPrintingPasses.h"
105 #include "llvm/Passes/OptimizationLevel.h"
106 #include "llvm/Support/CommandLine.h"
107 #include "llvm/Support/Debug.h"
108 #include "llvm/Support/ErrorHandling.h"
109 #include "llvm/Support/FormatVariadic.h"
110 #include "llvm/Support/Regex.h"
111 #include "llvm/Target/TargetMachine.h"
112 #include "llvm/Transforms/AggressiveInstCombine/AggressiveInstCombine.h"
113 #include "llvm/Transforms/CFGuard.h"
114 #include "llvm/Transforms/Coroutines/CoroCleanup.h"
115 #include "llvm/Transforms/Coroutines/CoroConditionalWrapper.h"
116 #include "llvm/Transforms/Coroutines/CoroEarly.h"
117 #include "llvm/Transforms/Coroutines/CoroElide.h"
118 #include "llvm/Transforms/Coroutines/CoroSplit.h"
119 #include "llvm/Transforms/HipStdPar/HipStdPar.h"
120 #include "llvm/Transforms/IPO/AlwaysInliner.h"
121 #include "llvm/Transforms/IPO/Annotation2Metadata.h"
122 #include "llvm/Transforms/IPO/ArgumentPromotion.h"
123 #include "llvm/Transforms/IPO/Attributor.h"
124 #include "llvm/Transforms/IPO/BlockExtractor.h"
125 #include "llvm/Transforms/IPO/CalledValuePropagation.h"
126 #include "llvm/Transforms/IPO/ConstantMerge.h"
127 #include "llvm/Transforms/IPO/CrossDSOCFI.h"
128 #include "llvm/Transforms/IPO/DeadArgumentElimination.h"
129 #include "llvm/Transforms/IPO/ElimAvailExtern.h"
130 #include "llvm/Transforms/IPO/EmbedBitcodePass.h"
131 #include "llvm/Transforms/IPO/ForceFunctionAttrs.h"
132 #include "llvm/Transforms/IPO/FunctionAttrs.h"
133 #include "llvm/Transforms/IPO/FunctionImport.h"
134 #include "llvm/Transforms/IPO/GlobalDCE.h"
135 #include "llvm/Transforms/IPO/GlobalOpt.h"
136 #include "llvm/Transforms/IPO/GlobalSplit.h"
137 #include "llvm/Transforms/IPO/HotColdSplitting.h"
138 #include "llvm/Transforms/IPO/IROutliner.h"
139 #include "llvm/Transforms/IPO/InferFunctionAttrs.h"
140 #include "llvm/Transforms/IPO/Inliner.h"
141 #include "llvm/Transforms/IPO/Internalize.h"
142 #include "llvm/Transforms/IPO/LoopExtractor.h"
143 #include "llvm/Transforms/IPO/LowerTypeTests.h"
144 #include "llvm/Transforms/IPO/MemProfContextDisambiguation.h"
145 #include "llvm/Transforms/IPO/MergeFunctions.h"
146 #include "llvm/Transforms/IPO/ModuleInliner.h"
147 #include "llvm/Transforms/IPO/OpenMPOpt.h"
148 #include "llvm/Transforms/IPO/PartialInlining.h"
149 #include "llvm/Transforms/IPO/SCCP.h"
150 #include "llvm/Transforms/IPO/SampleProfile.h"
151 #include "llvm/Transforms/IPO/SampleProfileProbe.h"
152 #include "llvm/Transforms/IPO/StripDeadPrototypes.h"
153 #include "llvm/Transforms/IPO/StripSymbols.h"
154 #include "llvm/Transforms/IPO/SyntheticCountsPropagation.h"
155 #include "llvm/Transforms/IPO/WholeProgramDevirt.h"
156 #include "llvm/Transforms/InstCombine/InstCombine.h"
157 #include "llvm/Transforms/Instrumentation.h"
158 #include "llvm/Transforms/Instrumentation/AddressSanitizer.h"
159 #include "llvm/Transforms/Instrumentation/BoundsChecking.h"
160 #include "llvm/Transforms/Instrumentation/CGProfile.h"
161 #include "llvm/Transforms/Instrumentation/ControlHeightReduction.h"
162 #include "llvm/Transforms/Instrumentation/DataFlowSanitizer.h"
163 #include "llvm/Transforms/Instrumentation/GCOVProfiler.h"
164 #include "llvm/Transforms/Instrumentation/HWAddressSanitizer.h"
165 #include "llvm/Transforms/Instrumentation/InstrOrderFile.h"
166 #include "llvm/Transforms/Instrumentation/InstrProfiling.h"
167 #include "llvm/Transforms/Instrumentation/KCFI.h"
168 #include "llvm/Transforms/Instrumentation/MemProfiler.h"
169 #include "llvm/Transforms/Instrumentation/MemorySanitizer.h"
170 #include "llvm/Transforms/Instrumentation/PGOInstrumentation.h"
171 #include "llvm/Transforms/Instrumentation/PoisonChecking.h"
172 #include "llvm/Transforms/Instrumentation/SanitizerBinaryMetadata.h"
173 #include "llvm/Transforms/Instrumentation/SanitizerCoverage.h"
174 #include "llvm/Transforms/Instrumentation/ThreadSanitizer.h"
175 #include "llvm/Transforms/ObjCARC.h"
176 #include "llvm/Transforms/Scalar/ADCE.h"
177 #include "llvm/Transforms/Scalar/AlignmentFromAssumptions.h"
178 #include "llvm/Transforms/Scalar/AnnotationRemarks.h"
179 #include "llvm/Transforms/Scalar/BDCE.h"
180 #include "llvm/Transforms/Scalar/CallSiteSplitting.h"
181 #include "llvm/Transforms/Scalar/ConstantHoisting.h"
182 #include "llvm/Transforms/Scalar/ConstraintElimination.h"
183 #include "llvm/Transforms/Scalar/CorrelatedValuePropagation.h"
184 #include "llvm/Transforms/Scalar/DCE.h"
185 #include "llvm/Transforms/Scalar/DFAJumpThreading.h"
186 #include "llvm/Transforms/Scalar/DeadStoreElimination.h"
187 #include "llvm/Transforms/Scalar/DivRemPairs.h"
188 #include "llvm/Transforms/Scalar/EarlyCSE.h"
189 #include "llvm/Transforms/Scalar/FlattenCFG.h"
190 #include "llvm/Transforms/Scalar/Float2Int.h"
191 #include "llvm/Transforms/Scalar/GVN.h"
192 #include "llvm/Transforms/Scalar/GuardWidening.h"
193 #include "llvm/Transforms/Scalar/IVUsersPrinter.h"
194 #include "llvm/Transforms/Scalar/IndVarSimplify.h"
195 #include "llvm/Transforms/Scalar/InductiveRangeCheckElimination.h"
196 #include "llvm/Transforms/Scalar/InferAddressSpaces.h"
197 #include "llvm/Transforms/Scalar/InferAlignment.h"
198 #include "llvm/Transforms/Scalar/InstSimplifyPass.h"
199 #include "llvm/Transforms/Scalar/JumpThreading.h"
200 #include "llvm/Transforms/Scalar/LICM.h"
201 #include "llvm/Transforms/Scalar/LoopAccessAnalysisPrinter.h"
202 #include "llvm/Transforms/Scalar/LoopBoundSplit.h"
203 #include "llvm/Transforms/Scalar/LoopDataPrefetch.h"
204 #include "llvm/Transforms/Scalar/LoopDeletion.h"
205 #include "llvm/Transforms/Scalar/LoopDistribute.h"
206 #include "llvm/Transforms/Scalar/LoopFlatten.h"
207 #include "llvm/Transforms/Scalar/LoopFuse.h"
208 #include "llvm/Transforms/Scalar/LoopIdiomRecognize.h"
209 #include "llvm/Transforms/Scalar/LoopInstSimplify.h"
210 #include "llvm/Transforms/Scalar/LoopInterchange.h"
211 #include "llvm/Transforms/Scalar/LoopLoadElimination.h"
212 #include "llvm/Transforms/Scalar/LoopPassManager.h"
213 #include "llvm/Transforms/Scalar/LoopPredication.h"
214 #include "llvm/Transforms/Scalar/LoopReroll.h"
215 #include "llvm/Transforms/Scalar/LoopRotation.h"
216 #include "llvm/Transforms/Scalar/LoopSimplifyCFG.h"
217 #include "llvm/Transforms/Scalar/LoopSink.h"
218 #include "llvm/Transforms/Scalar/LoopStrengthReduce.h"
219 #include "llvm/Transforms/Scalar/LoopUnrollAndJamPass.h"
220 #include "llvm/Transforms/Scalar/LoopUnrollPass.h"
221 #include "llvm/Transforms/Scalar/LoopVersioningLICM.h"
222 #include "llvm/Transforms/Scalar/LowerAtomicPass.h"
223 #include "llvm/Transforms/Scalar/LowerConstantIntrinsics.h"
224 #include "llvm/Transforms/Scalar/LowerExpectIntrinsic.h"
225 #include "llvm/Transforms/Scalar/LowerGuardIntrinsic.h"
226 #include "llvm/Transforms/Scalar/LowerMatrixIntrinsics.h"
227 #include "llvm/Transforms/Scalar/LowerWidenableCondition.h"
228 #include "llvm/Transforms/Scalar/MakeGuardsExplicit.h"
229 #include "llvm/Transforms/Scalar/MemCpyOptimizer.h"
230 #include "llvm/Transforms/Scalar/MergeICmps.h"
231 #include "llvm/Transforms/Scalar/MergedLoadStoreMotion.h"
232 #include "llvm/Transforms/Scalar/NaryReassociate.h"
233 #include "llvm/Transforms/Scalar/NewGVN.h"
234 #include "llvm/Transforms/Scalar/PartiallyInlineLibCalls.h"
235 #include "llvm/Transforms/Scalar/PlaceSafepoints.h"
236 #include "llvm/Transforms/Scalar/Reassociate.h"
237 #include "llvm/Transforms/Scalar/Reg2Mem.h"
238 #include "llvm/Transforms/Scalar/RewriteStatepointsForGC.h"
239 #include "llvm/Transforms/Scalar/SCCP.h"
240 #include "llvm/Transforms/Scalar/SROA.h"
241 #include "llvm/Transforms/Scalar/ScalarizeMaskedMemIntrin.h"
242 #include "llvm/Transforms/Scalar/Scalarizer.h"
243 #include "llvm/Transforms/Scalar/SeparateConstOffsetFromGEP.h"
244 #include "llvm/Transforms/Scalar/SimpleLoopUnswitch.h"
245 #include "llvm/Transforms/Scalar/SimplifyCFG.h"
246 #include "llvm/Transforms/Scalar/Sink.h"
247 #include "llvm/Transforms/Scalar/SpeculativeExecution.h"
248 #include "llvm/Transforms/Scalar/StraightLineStrengthReduce.h"
249 #include "llvm/Transforms/Scalar/StructurizeCFG.h"
250 #include "llvm/Transforms/Scalar/TLSVariableHoist.h"
251 #include "llvm/Transforms/Scalar/TailRecursionElimination.h"
252 #include "llvm/Transforms/Scalar/WarnMissedTransforms.h"
253 #include "llvm/Transforms/Utils/AddDiscriminators.h"
254 #include "llvm/Transforms/Utils/AssumeBundleBuilder.h"
255 #include "llvm/Transforms/Utils/BreakCriticalEdges.h"
256 #include "llvm/Transforms/Utils/CanonicalizeAliases.h"
257 #include "llvm/Transforms/Utils/CanonicalizeFreezeInLoops.h"
258 #include "llvm/Transforms/Utils/CountVisits.h"
259 #include "llvm/Transforms/Utils/DXILUpgrade.h"
260 #include "llvm/Transforms/Utils/Debugify.h"
261 #include "llvm/Transforms/Utils/EntryExitInstrumenter.h"
262 #include "llvm/Transforms/Utils/FixIrreducible.h"
263 #include "llvm/Transforms/Utils/HelloWorld.h"
264 #include "llvm/Transforms/Utils/InjectTLIMappings.h"
265 #include "llvm/Transforms/Utils/InstructionNamer.h"
266 #include "llvm/Transforms/Utils/LCSSA.h"
267 #include "llvm/Transforms/Utils/LibCallsShrinkWrap.h"
268 #include "llvm/Transforms/Utils/LoopSimplify.h"
269 #include "llvm/Transforms/Utils/LoopVersioning.h"
270 #include "llvm/Transforms/Utils/LowerGlobalDtors.h"
271 #include "llvm/Transforms/Utils/LowerIFunc.h"
272 #include "llvm/Transforms/Utils/LowerInvoke.h"
273 #include "llvm/Transforms/Utils/LowerSwitch.h"
274 #include "llvm/Transforms/Utils/Mem2Reg.h"
275 #include "llvm/Transforms/Utils/MetaRenamer.h"
276 #include "llvm/Transforms/Utils/MoveAutoInit.h"
277 #include "llvm/Transforms/Utils/NameAnonGlobals.h"
278 #include "llvm/Transforms/Utils/PredicateInfo.h"
279 #include "llvm/Transforms/Utils/RelLookupTableConverter.h"
280 #include "llvm/Transforms/Utils/StripGCRelocates.h"
281 #include "llvm/Transforms/Utils/StripNonLineTableDebugInfo.h"
282 #include "llvm/Transforms/Utils/SymbolRewriter.h"
283 #include "llvm/Transforms/Utils/UnifyFunctionExitNodes.h"
284 #include "llvm/Transforms/Utils/UnifyLoopExits.h"
285 #include "llvm/Transforms/Vectorize/LoadStoreVectorizer.h"
286 #include "llvm/Transforms/Vectorize/LoopVectorize.h"
287 #include "llvm/Transforms/Vectorize/SLPVectorizer.h"
288 #include "llvm/Transforms/Vectorize/VectorCombine.h"
289 #include <optional>
290 
291 using namespace llvm;
292 
293 static const Regex DefaultAliasRegex(
294     "^(default|thinlto-pre-link|thinlto|lto-pre-link|lto)<(O[0123sz])>$");
295 
296 namespace llvm {
297 cl::opt<bool> PrintPipelinePasses(
298     "print-pipeline-passes",
299     cl::desc("Print a '-passes' compatible string describing the pipeline "
300              "(best-effort only)."));
301 } // namespace llvm
302 
303 namespace {
304 
305 // The following passes/analyses have custom names, otherwise their name will
306 // include `(anonymous namespace)`. These are special since they are only for
307 // testing purposes and don't live in a header file.
308 
309 /// No-op module pass which does nothing.
310 struct NoOpModulePass : PassInfoMixin<NoOpModulePass> {
311   PreservedAnalyses run(Module &M, ModuleAnalysisManager &) {
312     return PreservedAnalyses::all();
313   }
314 
315   static StringRef name() { return "NoOpModulePass"; }
316 };
317 
318 /// No-op module analysis.
319 class NoOpModuleAnalysis : public AnalysisInfoMixin<NoOpModuleAnalysis> {
320   friend AnalysisInfoMixin<NoOpModuleAnalysis>;
321   static AnalysisKey Key;
322 
323 public:
324   struct Result {};
325   Result run(Module &, ModuleAnalysisManager &) { return Result(); }
326   static StringRef name() { return "NoOpModuleAnalysis"; }
327 };
328 
329 /// No-op CGSCC pass which does nothing.
330 struct NoOpCGSCCPass : PassInfoMixin<NoOpCGSCCPass> {
331   PreservedAnalyses run(LazyCallGraph::SCC &C, CGSCCAnalysisManager &,
332                         LazyCallGraph &, CGSCCUpdateResult &UR) {
333     return PreservedAnalyses::all();
334   }
335   static StringRef name() { return "NoOpCGSCCPass"; }
336 };
337 
338 /// No-op CGSCC analysis.
339 class NoOpCGSCCAnalysis : public AnalysisInfoMixin<NoOpCGSCCAnalysis> {
340   friend AnalysisInfoMixin<NoOpCGSCCAnalysis>;
341   static AnalysisKey Key;
342 
343 public:
344   struct Result {};
345   Result run(LazyCallGraph::SCC &, CGSCCAnalysisManager &, LazyCallGraph &G) {
346     return Result();
347   }
348   static StringRef name() { return "NoOpCGSCCAnalysis"; }
349 };
350 
351 /// No-op function pass which does nothing.
352 struct NoOpFunctionPass : PassInfoMixin<NoOpFunctionPass> {
353   PreservedAnalyses run(Function &F, FunctionAnalysisManager &) {
354     return PreservedAnalyses::all();
355   }
356   static StringRef name() { return "NoOpFunctionPass"; }
357 };
358 
359 /// No-op function analysis.
360 class NoOpFunctionAnalysis : public AnalysisInfoMixin<NoOpFunctionAnalysis> {
361   friend AnalysisInfoMixin<NoOpFunctionAnalysis>;
362   static AnalysisKey Key;
363 
364 public:
365   struct Result {};
366   Result run(Function &, FunctionAnalysisManager &) { return Result(); }
367   static StringRef name() { return "NoOpFunctionAnalysis"; }
368 };
369 
370 /// No-op loop nest pass which does nothing.
371 struct NoOpLoopNestPass : PassInfoMixin<NoOpLoopNestPass> {
372   PreservedAnalyses run(LoopNest &L, LoopAnalysisManager &,
373                         LoopStandardAnalysisResults &, LPMUpdater &) {
374     return PreservedAnalyses::all();
375   }
376   static StringRef name() { return "NoOpLoopNestPass"; }
377 };
378 
379 /// No-op loop pass which does nothing.
380 struct NoOpLoopPass : PassInfoMixin<NoOpLoopPass> {
381   PreservedAnalyses run(Loop &L, LoopAnalysisManager &,
382                         LoopStandardAnalysisResults &, LPMUpdater &) {
383     return PreservedAnalyses::all();
384   }
385   static StringRef name() { return "NoOpLoopPass"; }
386 };
387 
388 /// No-op loop analysis.
389 class NoOpLoopAnalysis : public AnalysisInfoMixin<NoOpLoopAnalysis> {
390   friend AnalysisInfoMixin<NoOpLoopAnalysis>;
391   static AnalysisKey Key;
392 
393 public:
394   struct Result {};
395   Result run(Loop &, LoopAnalysisManager &, LoopStandardAnalysisResults &) {
396     return Result();
397   }
398   static StringRef name() { return "NoOpLoopAnalysis"; }
399 };
400 
401 AnalysisKey NoOpModuleAnalysis::Key;
402 AnalysisKey NoOpCGSCCAnalysis::Key;
403 AnalysisKey NoOpFunctionAnalysis::Key;
404 AnalysisKey NoOpLoopAnalysis::Key;
405 
406 /// Whether or not we should populate a PassInstrumentationCallbacks's class to
407 /// pass name map.
408 ///
409 /// This is for optimization purposes so we don't populate it if we never use
410 /// it. This should be updated if new pass instrumentation wants to use the map.
411 /// We currently only use this for --print-before/after.
412 bool shouldPopulateClassToPassNames() {
413   return PrintPipelinePasses || !printBeforePasses().empty() ||
414          !printAfterPasses().empty() || !isFilterPassesEmpty();
415 }
416 
417 // A pass for testing -print-on-crash.
418 // DO NOT USE THIS EXCEPT FOR TESTING!
419 class TriggerCrashPass : public PassInfoMixin<TriggerCrashPass> {
420 public:
421   PreservedAnalyses run(Module &, ModuleAnalysisManager &) {
422     abort();
423     return PreservedAnalyses::all();
424   }
425   static StringRef name() { return "TriggerCrashPass"; }
426 };
427 
428 // A pass for testing message reporting of -verify-each failures.
429 // DO NOT USE THIS EXCEPT FOR TESTING!
430 class TriggerVerifierErrorPass
431     : public PassInfoMixin<TriggerVerifierErrorPass> {
432 public:
433   PreservedAnalyses run(Module &M, ModuleAnalysisManager &) {
434     // Intentionally break the Module by creating an alias without setting the
435     // aliasee.
436     auto *PtrTy = llvm::PointerType::getUnqual(M.getContext());
437     GlobalAlias::create(PtrTy, PtrTy->getAddressSpace(),
438                         GlobalValue::LinkageTypes::InternalLinkage,
439                         "__bad_alias", nullptr, &M);
440     return PreservedAnalyses::none();
441   }
442 
443   PreservedAnalyses run(Function &F, FunctionAnalysisManager &) {
444     // Intentionally break the Function by inserting a terminator
445     // instruction in the middle of a basic block.
446     BasicBlock &BB = F.getEntryBlock();
447     new UnreachableInst(F.getContext(), BB.getTerminator());
448     return PreservedAnalyses::none();
449   }
450 
451   static StringRef name() { return "TriggerVerifierErrorPass"; }
452 };
453 
454 } // namespace
455 
456 PassBuilder::PassBuilder(TargetMachine *TM, PipelineTuningOptions PTO,
457                          std::optional<PGOOptions> PGOOpt,
458                          PassInstrumentationCallbacks *PIC)
459     : TM(TM), PTO(PTO), PGOOpt(PGOOpt), PIC(PIC) {
460   bool ShouldPopulateClassToPassNames = PIC && shouldPopulateClassToPassNames();
461   if (TM)
462     TM->registerPassBuilderCallbacks(*this, ShouldPopulateClassToPassNames);
463   if (ShouldPopulateClassToPassNames) {
464 #define MODULE_PASS(NAME, CREATE_PASS)                                         \
465   PIC->addClassToPassName(decltype(CREATE_PASS)::name(), NAME);
466 #define MODULE_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)      \
467   PIC->addClassToPassName(CLASS, NAME);
468 #define MODULE_ANALYSIS(NAME, CREATE_PASS)                                     \
469   PIC->addClassToPassName(decltype(CREATE_PASS)::name(), NAME);
470 #define FUNCTION_PASS(NAME, CREATE_PASS)                                       \
471   PIC->addClassToPassName(decltype(CREATE_PASS)::name(), NAME);
472 #define FUNCTION_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)    \
473   PIC->addClassToPassName(CLASS, NAME);
474 #define FUNCTION_ANALYSIS(NAME, CREATE_PASS)                                   \
475   PIC->addClassToPassName(decltype(CREATE_PASS)::name(), NAME);
476 #define LOOPNEST_PASS(NAME, CREATE_PASS)                                       \
477   PIC->addClassToPassName(decltype(CREATE_PASS)::name(), NAME);
478 #define LOOP_PASS(NAME, CREATE_PASS)                                           \
479   PIC->addClassToPassName(decltype(CREATE_PASS)::name(), NAME);
480 #define LOOP_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)        \
481   PIC->addClassToPassName(CLASS, NAME);
482 #define LOOP_ANALYSIS(NAME, CREATE_PASS)                                       \
483   PIC->addClassToPassName(decltype(CREATE_PASS)::name(), NAME);
484 #define CGSCC_PASS(NAME, CREATE_PASS)                                          \
485   PIC->addClassToPassName(decltype(CREATE_PASS)::name(), NAME);
486 #define CGSCC_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)       \
487   PIC->addClassToPassName(CLASS, NAME);
488 #define CGSCC_ANALYSIS(NAME, CREATE_PASS)                                      \
489   PIC->addClassToPassName(decltype(CREATE_PASS)::name(), NAME);
490 #include "PassRegistry.def"
491   }
492 }
493 
494 void PassBuilder::registerModuleAnalyses(ModuleAnalysisManager &MAM) {
495 #define MODULE_ANALYSIS(NAME, CREATE_PASS)                                     \
496   MAM.registerPass([&] { return CREATE_PASS; });
497 #include "PassRegistry.def"
498 
499   for (auto &C : ModuleAnalysisRegistrationCallbacks)
500     C(MAM);
501 }
502 
503 void PassBuilder::registerCGSCCAnalyses(CGSCCAnalysisManager &CGAM) {
504 #define CGSCC_ANALYSIS(NAME, CREATE_PASS)                                      \
505   CGAM.registerPass([&] { return CREATE_PASS; });
506 #include "PassRegistry.def"
507 
508   for (auto &C : CGSCCAnalysisRegistrationCallbacks)
509     C(CGAM);
510 }
511 
512 void PassBuilder::registerFunctionAnalyses(FunctionAnalysisManager &FAM) {
513   // We almost always want the default alias analysis pipeline.
514   // If a user wants a different one, they can register their own before calling
515   // registerFunctionAnalyses().
516   FAM.registerPass([&] { return buildDefaultAAPipeline(); });
517 
518 #define FUNCTION_ANALYSIS(NAME, CREATE_PASS)                                   \
519   FAM.registerPass([&] { return CREATE_PASS; });
520 #include "PassRegistry.def"
521 
522   for (auto &C : FunctionAnalysisRegistrationCallbacks)
523     C(FAM);
524 }
525 
526 void PassBuilder::registerLoopAnalyses(LoopAnalysisManager &LAM) {
527 #define LOOP_ANALYSIS(NAME, CREATE_PASS)                                       \
528   LAM.registerPass([&] { return CREATE_PASS; });
529 #include "PassRegistry.def"
530 
531   for (auto &C : LoopAnalysisRegistrationCallbacks)
532     C(LAM);
533 }
534 
535 static std::optional<int> parseRepeatPassName(StringRef Name) {
536   if (!Name.consume_front("repeat<") || !Name.consume_back(">"))
537     return std::nullopt;
538   int Count;
539   if (Name.getAsInteger(0, Count) || Count <= 0)
540     return std::nullopt;
541   return Count;
542 }
543 
544 static std::optional<std::pair<bool, bool>>
545 parseFunctionPipelineName(StringRef Name) {
546   std::pair<bool, bool> Params;
547   if (!Name.consume_front("function"))
548     return std::nullopt;
549   if (Name.empty())
550     return Params;
551   if (!Name.consume_front("<") || !Name.consume_back(">"))
552     return std::nullopt;
553   while (!Name.empty()) {
554     auto [Front, Back] = Name.split(';');
555     Name = Back;
556     if (Front == "eager-inv")
557       Params.first = true;
558     else if (Front == "no-rerun")
559       Params.second = true;
560     else
561       return std::nullopt;
562   }
563   return Params;
564 }
565 
566 static std::optional<int> parseDevirtPassName(StringRef Name) {
567   if (!Name.consume_front("devirt<") || !Name.consume_back(">"))
568     return std::nullopt;
569   int Count;
570   if (Name.getAsInteger(0, Count) || Count < 0)
571     return std::nullopt;
572   return Count;
573 }
574 
575 static bool checkParametrizedPassName(StringRef Name, StringRef PassName) {
576   if (!Name.consume_front(PassName))
577     return false;
578   // normal pass name w/o parameters == default parameters
579   if (Name.empty())
580     return true;
581   return Name.starts_with("<") && Name.ends_with(">");
582 }
583 
584 static std::optional<OptimizationLevel> parseOptLevel(StringRef S) {
585   return StringSwitch<std::optional<OptimizationLevel>>(S)
586       .Case("O0", OptimizationLevel::O0)
587       .Case("O1", OptimizationLevel::O1)
588       .Case("O2", OptimizationLevel::O2)
589       .Case("O3", OptimizationLevel::O3)
590       .Case("Os", OptimizationLevel::Os)
591       .Case("Oz", OptimizationLevel::Oz)
592       .Default(std::nullopt);
593 }
594 
595 namespace {
596 
597 /// This performs customized parsing of pass name with parameters.
598 ///
599 /// We do not need parametrization of passes in textual pipeline very often,
600 /// yet on a rare occasion ability to specify parameters right there can be
601 /// useful.
602 ///
603 /// \p Name - parameterized specification of a pass from a textual pipeline
604 /// is a string in a form of :
605 ///      PassName '<' parameter-list '>'
606 ///
607 /// Parameter list is being parsed by the parser callable argument, \p Parser,
608 /// It takes a string-ref of parameters and returns either StringError or a
609 /// parameter list in a form of a custom parameters type, all wrapped into
610 /// Expected<> template class.
611 ///
612 template <typename ParametersParseCallableT>
613 auto parsePassParameters(ParametersParseCallableT &&Parser, StringRef Name,
614                          StringRef PassName) -> decltype(Parser(StringRef{})) {
615   using ParametersT = typename decltype(Parser(StringRef{}))::value_type;
616 
617   StringRef Params = Name;
618   if (!Params.consume_front(PassName)) {
619     assert(false &&
620            "unable to strip pass name from parametrized pass specification");
621   }
622   if (!Params.empty() &&
623       (!Params.consume_front("<") || !Params.consume_back(">"))) {
624     assert(false && "invalid format for parametrized pass name");
625   }
626 
627   Expected<ParametersT> Result = Parser(Params);
628   assert((Result || Result.template errorIsA<StringError>()) &&
629          "Pass parameter parser can only return StringErrors.");
630   return Result;
631 }
632 
633 /// Parser of parameters for HardwareLoops  pass.
634 Expected<HardwareLoopOptions> parseHardwareLoopOptions(StringRef Params) {
635   HardwareLoopOptions HardwareLoopOpts;
636 
637   while (!Params.empty()) {
638     StringRef ParamName;
639     std::tie(ParamName, Params) = Params.split(';');
640     if (ParamName.consume_front("hardware-loop-decrement=")) {
641       int Count;
642       if (ParamName.getAsInteger(0, Count))
643         return make_error<StringError>(
644             formatv("invalid HardwareLoopPass parameter '{0}' ", ParamName).str(),
645             inconvertibleErrorCode());
646       HardwareLoopOpts.setDecrement(Count);
647       continue;
648     }
649     if (ParamName.consume_front("hardware-loop-counter-bitwidth=")) {
650       int Count;
651       if (ParamName.getAsInteger(0, Count))
652         return make_error<StringError>(
653             formatv("invalid HardwareLoopPass parameter '{0}' ", ParamName).str(),
654             inconvertibleErrorCode());
655       HardwareLoopOpts.setCounterBitwidth(Count);
656       continue;
657     }
658     if (ParamName == "force-hardware-loops") {
659       HardwareLoopOpts.setForce(true);
660     } else if (ParamName == "force-hardware-loop-phi") {
661       HardwareLoopOpts.setForcePhi(true);
662     } else if (ParamName == "force-nested-hardware-loop") {
663       HardwareLoopOpts.setForceNested(true);
664     } else if (ParamName == "force-hardware-loop-guard") {
665       HardwareLoopOpts.setForceGuard(true);
666     } else {
667       return make_error<StringError>(
668           formatv("invalid HardwarePass parameter '{0}' ", ParamName).str(),
669           inconvertibleErrorCode());
670     }
671   }
672   return HardwareLoopOpts;
673 }
674 
675 /// Parser of parameters for LoopUnroll pass.
676 Expected<LoopUnrollOptions> parseLoopUnrollOptions(StringRef Params) {
677   LoopUnrollOptions UnrollOpts;
678   while (!Params.empty()) {
679     StringRef ParamName;
680     std::tie(ParamName, Params) = Params.split(';');
681     std::optional<OptimizationLevel> OptLevel = parseOptLevel(ParamName);
682     // Don't accept -Os/-Oz.
683     if (OptLevel && !OptLevel->isOptimizingForSize()) {
684       UnrollOpts.setOptLevel(OptLevel->getSpeedupLevel());
685       continue;
686     }
687     if (ParamName.consume_front("full-unroll-max=")) {
688       int Count;
689       if (ParamName.getAsInteger(0, Count))
690         return make_error<StringError>(
691             formatv("invalid LoopUnrollPass parameter '{0}' ", ParamName).str(),
692             inconvertibleErrorCode());
693       UnrollOpts.setFullUnrollMaxCount(Count);
694       continue;
695     }
696 
697     bool Enable = !ParamName.consume_front("no-");
698     if (ParamName == "partial") {
699       UnrollOpts.setPartial(Enable);
700     } else if (ParamName == "peeling") {
701       UnrollOpts.setPeeling(Enable);
702     } else if (ParamName == "profile-peeling") {
703       UnrollOpts.setProfileBasedPeeling(Enable);
704     } else if (ParamName == "runtime") {
705       UnrollOpts.setRuntime(Enable);
706     } else if (ParamName == "upperbound") {
707       UnrollOpts.setUpperBound(Enable);
708     } else {
709       return make_error<StringError>(
710           formatv("invalid LoopUnrollPass parameter '{0}' ", ParamName).str(),
711           inconvertibleErrorCode());
712     }
713   }
714   return UnrollOpts;
715 }
716 
717 Expected<bool> parseSinglePassOption(StringRef Params, StringRef OptionName,
718                                      StringRef PassName) {
719   bool Result = false;
720   while (!Params.empty()) {
721     StringRef ParamName;
722     std::tie(ParamName, Params) = Params.split(';');
723 
724     if (ParamName == OptionName) {
725       Result = true;
726     } else {
727       return make_error<StringError>(
728           formatv("invalid {1} pass parameter '{0}' ", ParamName, PassName)
729               .str(),
730           inconvertibleErrorCode());
731     }
732   }
733   return Result;
734 }
735 
736 Expected<bool> parseGlobalDCEPassOptions(StringRef Params) {
737   return parseSinglePassOption(Params, "vfe-linkage-unit-visibility", "GlobalDCE");
738 }
739 
740 Expected<bool> parseInlinerPassOptions(StringRef Params) {
741   return parseSinglePassOption(Params, "only-mandatory", "InlinerPass");
742 }
743 
744 Expected<bool> parseCoroSplitPassOptions(StringRef Params) {
745   return parseSinglePassOption(Params, "reuse-storage", "CoroSplitPass");
746 }
747 
748 Expected<bool> parsePostOrderFunctionAttrsPassOptions(StringRef Params) {
749   return parseSinglePassOption(Params, "skip-non-recursive-function-attrs",
750                                "PostOrderFunctionAttrs");
751 }
752 
753 Expected<CFGuardPass::Mechanism> parseCFGuardPassOptions(StringRef Params) {
754   if (Params.empty())
755     return CFGuardPass::Mechanism::Check;
756 
757   auto [Param, RHS] = Params.split(';');
758   if (!RHS.empty())
759     return make_error<StringError>(
760         formatv("too many CFGuardPass parameters '{0}' ", Params).str(),
761         inconvertibleErrorCode());
762 
763   if (Param == "check")
764     return CFGuardPass::Mechanism::Check;
765   if (Param == "dispatch")
766     return CFGuardPass::Mechanism::Dispatch;
767 
768   return make_error<StringError>(
769       formatv("invalid CFGuardPass mechanism: '{0}' ", Param).str(),
770       inconvertibleErrorCode());
771 }
772 
773 Expected<bool> parseEarlyCSEPassOptions(StringRef Params) {
774   return parseSinglePassOption(Params, "memssa", "EarlyCSE");
775 }
776 
777 Expected<bool> parseEntryExitInstrumenterPassOptions(StringRef Params) {
778   return parseSinglePassOption(Params, "post-inline", "EntryExitInstrumenter");
779 }
780 
781 Expected<bool> parseLoopExtractorPassOptions(StringRef Params) {
782   return parseSinglePassOption(Params, "single", "LoopExtractor");
783 }
784 
785 Expected<bool> parseLowerMatrixIntrinsicsPassOptions(StringRef Params) {
786   return parseSinglePassOption(Params, "minimal", "LowerMatrixIntrinsics");
787 }
788 
789 Expected<AddressSanitizerOptions> parseASanPassOptions(StringRef Params) {
790   AddressSanitizerOptions Result;
791   while (!Params.empty()) {
792     StringRef ParamName;
793     std::tie(ParamName, Params) = Params.split(';');
794 
795     if (ParamName == "kernel") {
796       Result.CompileKernel = true;
797     } else {
798       return make_error<StringError>(
799           formatv("invalid AddressSanitizer pass parameter '{0}' ", ParamName)
800               .str(),
801           inconvertibleErrorCode());
802     }
803   }
804   return Result;
805 }
806 
807 Expected<HWAddressSanitizerOptions> parseHWASanPassOptions(StringRef Params) {
808   HWAddressSanitizerOptions Result;
809   while (!Params.empty()) {
810     StringRef ParamName;
811     std::tie(ParamName, Params) = Params.split(';');
812 
813     if (ParamName == "recover") {
814       Result.Recover = true;
815     } else if (ParamName == "kernel") {
816       Result.CompileKernel = true;
817     } else {
818       return make_error<StringError>(
819           formatv("invalid HWAddressSanitizer pass parameter '{0}' ", ParamName)
820               .str(),
821           inconvertibleErrorCode());
822     }
823   }
824   return Result;
825 }
826 
827 Expected<MemorySanitizerOptions> parseMSanPassOptions(StringRef Params) {
828   MemorySanitizerOptions Result;
829   while (!Params.empty()) {
830     StringRef ParamName;
831     std::tie(ParamName, Params) = Params.split(';');
832 
833     if (ParamName == "recover") {
834       Result.Recover = true;
835     } else if (ParamName == "kernel") {
836       Result.Kernel = true;
837     } else if (ParamName.consume_front("track-origins=")) {
838       if (ParamName.getAsInteger(0, Result.TrackOrigins))
839         return make_error<StringError>(
840             formatv("invalid argument to MemorySanitizer pass track-origins "
841                     "parameter: '{0}' ",
842                     ParamName)
843                 .str(),
844             inconvertibleErrorCode());
845     } else if (ParamName == "eager-checks") {
846       Result.EagerChecks = true;
847     } else {
848       return make_error<StringError>(
849           formatv("invalid MemorySanitizer pass parameter '{0}' ", ParamName)
850               .str(),
851           inconvertibleErrorCode());
852     }
853   }
854   return Result;
855 }
856 
857 /// Parser of parameters for SimplifyCFG pass.
858 Expected<SimplifyCFGOptions> parseSimplifyCFGOptions(StringRef Params) {
859   SimplifyCFGOptions Result;
860   while (!Params.empty()) {
861     StringRef ParamName;
862     std::tie(ParamName, Params) = Params.split(';');
863 
864     bool Enable = !ParamName.consume_front("no-");
865     if (ParamName == "speculate-blocks") {
866       Result.speculateBlocks(Enable);
867     } else if (ParamName == "simplify-cond-branch") {
868       Result.setSimplifyCondBranch(Enable);
869     } else if (ParamName == "forward-switch-cond") {
870       Result.forwardSwitchCondToPhi(Enable);
871     } else if (ParamName == "switch-range-to-icmp") {
872       Result.convertSwitchRangeToICmp(Enable);
873     } else if (ParamName == "switch-to-lookup") {
874       Result.convertSwitchToLookupTable(Enable);
875     } else if (ParamName == "keep-loops") {
876       Result.needCanonicalLoops(Enable);
877     } else if (ParamName == "hoist-common-insts") {
878       Result.hoistCommonInsts(Enable);
879     } else if (ParamName == "sink-common-insts") {
880       Result.sinkCommonInsts(Enable);
881     } else if (Enable && ParamName.consume_front("bonus-inst-threshold=")) {
882       APInt BonusInstThreshold;
883       if (ParamName.getAsInteger(0, BonusInstThreshold))
884         return make_error<StringError>(
885             formatv("invalid argument to SimplifyCFG pass bonus-threshold "
886                     "parameter: '{0}' ",
887                     ParamName).str(),
888             inconvertibleErrorCode());
889       Result.bonusInstThreshold(BonusInstThreshold.getSExtValue());
890     } else {
891       return make_error<StringError>(
892           formatv("invalid SimplifyCFG pass parameter '{0}' ", ParamName).str(),
893           inconvertibleErrorCode());
894     }
895   }
896   return Result;
897 }
898 
899 Expected<InstCombineOptions> parseInstCombineOptions(StringRef Params) {
900   InstCombineOptions Result;
901   // When specifying "instcombine" in -passes enable fix-point verification by
902   // default, as this is what most tests should use.
903   Result.setVerifyFixpoint(true);
904   while (!Params.empty()) {
905     StringRef ParamName;
906     std::tie(ParamName, Params) = Params.split(';');
907 
908     bool Enable = !ParamName.consume_front("no-");
909     if (ParamName == "use-loop-info") {
910       Result.setUseLoopInfo(Enable);
911     } else if (ParamName == "verify-fixpoint") {
912       Result.setVerifyFixpoint(Enable);
913     } else if (Enable && ParamName.consume_front("max-iterations=")) {
914       APInt MaxIterations;
915       if (ParamName.getAsInteger(0, MaxIterations))
916         return make_error<StringError>(
917             formatv("invalid argument to InstCombine pass max-iterations "
918                     "parameter: '{0}' ",
919                     ParamName).str(),
920             inconvertibleErrorCode());
921       Result.setMaxIterations((unsigned)MaxIterations.getZExtValue());
922     } else {
923       return make_error<StringError>(
924           formatv("invalid InstCombine pass parameter '{0}' ", ParamName).str(),
925           inconvertibleErrorCode());
926     }
927   }
928   return Result;
929 }
930 
931 /// Parser of parameters for LoopVectorize pass.
932 Expected<LoopVectorizeOptions> parseLoopVectorizeOptions(StringRef Params) {
933   LoopVectorizeOptions Opts;
934   while (!Params.empty()) {
935     StringRef ParamName;
936     std::tie(ParamName, Params) = Params.split(';');
937 
938     bool Enable = !ParamName.consume_front("no-");
939     if (ParamName == "interleave-forced-only") {
940       Opts.setInterleaveOnlyWhenForced(Enable);
941     } else if (ParamName == "vectorize-forced-only") {
942       Opts.setVectorizeOnlyWhenForced(Enable);
943     } else {
944       return make_error<StringError>(
945           formatv("invalid LoopVectorize parameter '{0}' ", ParamName).str(),
946           inconvertibleErrorCode());
947     }
948   }
949   return Opts;
950 }
951 
952 Expected<std::pair<bool, bool>> parseLoopUnswitchOptions(StringRef Params) {
953   std::pair<bool, bool> Result = {false, true};
954   while (!Params.empty()) {
955     StringRef ParamName;
956     std::tie(ParamName, Params) = Params.split(';');
957 
958     bool Enable = !ParamName.consume_front("no-");
959     if (ParamName == "nontrivial") {
960       Result.first = Enable;
961     } else if (ParamName == "trivial") {
962       Result.second = Enable;
963     } else {
964       return make_error<StringError>(
965           formatv("invalid LoopUnswitch pass parameter '{0}' ", ParamName)
966               .str(),
967           inconvertibleErrorCode());
968     }
969   }
970   return Result;
971 }
972 
973 Expected<LICMOptions> parseLICMOptions(StringRef Params) {
974   LICMOptions Result;
975   while (!Params.empty()) {
976     StringRef ParamName;
977     std::tie(ParamName, Params) = Params.split(';');
978 
979     bool Enable = !ParamName.consume_front("no-");
980     if (ParamName == "allowspeculation") {
981       Result.AllowSpeculation = Enable;
982     } else {
983       return make_error<StringError>(
984           formatv("invalid LICM pass parameter '{0}' ", ParamName).str(),
985           inconvertibleErrorCode());
986     }
987   }
988   return Result;
989 }
990 
991 Expected<std::pair<bool, bool>> parseLoopRotateOptions(StringRef Params) {
992   std::pair<bool, bool> Result = {true, false};
993   while (!Params.empty()) {
994     StringRef ParamName;
995     std::tie(ParamName, Params) = Params.split(';');
996 
997     bool Enable = !ParamName.consume_front("no-");
998     if (ParamName == "header-duplication") {
999       Result.first = Enable;
1000     } else if (ParamName == "prepare-for-lto") {
1001       Result.second = Enable;
1002     } else {
1003       return make_error<StringError>(
1004           formatv("invalid LoopRotate pass parameter '{0}' ", ParamName).str(),
1005           inconvertibleErrorCode());
1006     }
1007   }
1008   return Result;
1009 }
1010 
1011 Expected<bool> parseMergedLoadStoreMotionOptions(StringRef Params) {
1012   bool Result = false;
1013   while (!Params.empty()) {
1014     StringRef ParamName;
1015     std::tie(ParamName, Params) = Params.split(';');
1016 
1017     bool Enable = !ParamName.consume_front("no-");
1018     if (ParamName == "split-footer-bb") {
1019       Result = Enable;
1020     } else {
1021       return make_error<StringError>(
1022           formatv("invalid MergedLoadStoreMotion pass parameter '{0}' ",
1023                   ParamName)
1024               .str(),
1025           inconvertibleErrorCode());
1026     }
1027   }
1028   return Result;
1029 }
1030 
1031 Expected<GVNOptions> parseGVNOptions(StringRef Params) {
1032   GVNOptions Result;
1033   while (!Params.empty()) {
1034     StringRef ParamName;
1035     std::tie(ParamName, Params) = Params.split(';');
1036 
1037     bool Enable = !ParamName.consume_front("no-");
1038     if (ParamName == "pre") {
1039       Result.setPRE(Enable);
1040     } else if (ParamName == "load-pre") {
1041       Result.setLoadPRE(Enable);
1042     } else if (ParamName == "split-backedge-load-pre") {
1043       Result.setLoadPRESplitBackedge(Enable);
1044     } else if (ParamName == "memdep") {
1045       Result.setMemDep(Enable);
1046     } else {
1047       return make_error<StringError>(
1048           formatv("invalid GVN pass parameter '{0}' ", ParamName).str(),
1049           inconvertibleErrorCode());
1050     }
1051   }
1052   return Result;
1053 }
1054 
1055 Expected<IPSCCPOptions> parseIPSCCPOptions(StringRef Params) {
1056   IPSCCPOptions Result;
1057   while (!Params.empty()) {
1058     StringRef ParamName;
1059     std::tie(ParamName, Params) = Params.split(';');
1060 
1061     bool Enable = !ParamName.consume_front("no-");
1062     if (ParamName == "func-spec")
1063       Result.setFuncSpec(Enable);
1064     else
1065       return make_error<StringError>(
1066           formatv("invalid IPSCCP pass parameter '{0}' ", ParamName).str(),
1067           inconvertibleErrorCode());
1068   }
1069   return Result;
1070 }
1071 
1072 Expected<SROAOptions> parseSROAOptions(StringRef Params) {
1073   if (Params.empty() || Params == "modify-cfg")
1074     return SROAOptions::ModifyCFG;
1075   if (Params == "preserve-cfg")
1076     return SROAOptions::PreserveCFG;
1077   return make_error<StringError>(
1078       formatv("invalid SROA pass parameter '{0}' (either preserve-cfg or "
1079               "modify-cfg can be specified)",
1080               Params)
1081           .str(),
1082       inconvertibleErrorCode());
1083 }
1084 
1085 Expected<StackLifetime::LivenessType>
1086 parseStackLifetimeOptions(StringRef Params) {
1087   StackLifetime::LivenessType Result = StackLifetime::LivenessType::May;
1088   while (!Params.empty()) {
1089     StringRef ParamName;
1090     std::tie(ParamName, Params) = Params.split(';');
1091 
1092     if (ParamName == "may") {
1093       Result = StackLifetime::LivenessType::May;
1094     } else if (ParamName == "must") {
1095       Result = StackLifetime::LivenessType::Must;
1096     } else {
1097       return make_error<StringError>(
1098           formatv("invalid StackLifetime parameter '{0}' ", ParamName).str(),
1099           inconvertibleErrorCode());
1100     }
1101   }
1102   return Result;
1103 }
1104 
1105 Expected<bool> parseDependenceAnalysisPrinterOptions(StringRef Params) {
1106   return parseSinglePassOption(Params, "normalized-results",
1107                                "DependenceAnalysisPrinter");
1108 }
1109 
1110 Expected<bool> parseSeparateConstOffsetFromGEPPassOptions(StringRef Params) {
1111   return parseSinglePassOption(Params, "lower-gep",
1112                                "SeparateConstOffsetFromGEP");
1113 }
1114 
1115 Expected<OptimizationLevel>
1116 parseFunctionSimplificationPipelineOptions(StringRef Params) {
1117   std::optional<OptimizationLevel> L = parseOptLevel(Params);
1118   if (!L || *L == OptimizationLevel::O0) {
1119     return make_error<StringError>(
1120         formatv("invalid function-simplification parameter '{0}' ", Params)
1121             .str(),
1122         inconvertibleErrorCode());
1123   };
1124   return *L;
1125 }
1126 
1127 Expected<bool> parseMemorySSAPrinterPassOptions(StringRef Params) {
1128   return parseSinglePassOption(Params, "no-ensure-optimized-uses",
1129                                "MemorySSAPrinterPass");
1130 }
1131 
1132 Expected<bool> parseSpeculativeExecutionPassOptions(StringRef Params) {
1133   return parseSinglePassOption(Params, "only-if-divergent-target",
1134                                "SpeculativeExecutionPass");
1135 }
1136 
1137 Expected<std::string> parseMemProfUsePassOptions(StringRef Params) {
1138   std::string Result;
1139   while (!Params.empty()) {
1140     StringRef ParamName;
1141     std::tie(ParamName, Params) = Params.split(';');
1142 
1143     if (ParamName.consume_front("profile-filename=")) {
1144       Result = ParamName.str();
1145     } else {
1146       return make_error<StringError>(
1147           formatv("invalid MemProfUse pass parameter '{0}' ", ParamName).str(),
1148           inconvertibleErrorCode());
1149     }
1150   }
1151   return Result;
1152 }
1153 
1154 Expected<bool> parseStructuralHashPrinterPassOptions(StringRef Params) {
1155   return parseSinglePassOption(Params, "detailed",
1156                                "StructuralHashPrinterPass");
1157 }
1158 
1159 Expected<bool> parseWinEHPrepareOptions(StringRef Params) {
1160   return parseSinglePassOption(Params, "demote-catchswitch-only",
1161                                "WinEHPreparePass");
1162 }
1163 
1164 } // namespace
1165 
1166 /// Tests whether a pass name starts with a valid prefix for a default pipeline
1167 /// alias.
1168 static bool startsWithDefaultPipelineAliasPrefix(StringRef Name) {
1169   return Name.starts_with("default") || Name.starts_with("thinlto") ||
1170          Name.starts_with("lto");
1171 }
1172 
1173 /// Tests whether registered callbacks will accept a given pass name.
1174 ///
1175 /// When parsing a pipeline text, the type of the outermost pipeline may be
1176 /// omitted, in which case the type is automatically determined from the first
1177 /// pass name in the text. This may be a name that is handled through one of the
1178 /// callbacks. We check this through the oridinary parsing callbacks by setting
1179 /// up a dummy PassManager in order to not force the client to also handle this
1180 /// type of query.
1181 template <typename PassManagerT, typename CallbacksT>
1182 static bool callbacksAcceptPassName(StringRef Name, CallbacksT &Callbacks) {
1183   if (!Callbacks.empty()) {
1184     PassManagerT DummyPM;
1185     for (auto &CB : Callbacks)
1186       if (CB(Name, DummyPM, {}))
1187         return true;
1188   }
1189   return false;
1190 }
1191 
1192 template <typename CallbacksT>
1193 static bool isModulePassName(StringRef Name, CallbacksT &Callbacks) {
1194   // Manually handle aliases for pre-configured pipeline fragments.
1195   if (startsWithDefaultPipelineAliasPrefix(Name))
1196     return DefaultAliasRegex.match(Name);
1197 
1198   StringRef NameNoBracket = Name.take_until([](char C) { return C == '<'; });
1199 
1200   // Explicitly handle pass manager names.
1201   if (Name == "module")
1202     return true;
1203   if (Name == "cgscc")
1204     return true;
1205   if (NameNoBracket == "function")
1206     return true;
1207   if (Name == "coro-cond")
1208     return true;
1209 
1210   // Explicitly handle custom-parsed pass names.
1211   if (parseRepeatPassName(Name))
1212     return true;
1213 
1214 #define MODULE_PASS(NAME, CREATE_PASS)                                         \
1215   if (Name == NAME)                                                            \
1216     return true;
1217 #define MODULE_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)      \
1218   if (checkParametrizedPassName(Name, NAME))                                   \
1219     return true;
1220 #define MODULE_ANALYSIS(NAME, CREATE_PASS)                                     \
1221   if (Name == "require<" NAME ">" || Name == "invalidate<" NAME ">")           \
1222     return true;
1223 #include "PassRegistry.def"
1224 
1225   return callbacksAcceptPassName<ModulePassManager>(Name, Callbacks);
1226 }
1227 
1228 template <typename CallbacksT>
1229 static bool isCGSCCPassName(StringRef Name, CallbacksT &Callbacks) {
1230   // Explicitly handle pass manager names.
1231   StringRef NameNoBracket = Name.take_until([](char C) { return C == '<'; });
1232   if (Name == "cgscc")
1233     return true;
1234   if (NameNoBracket == "function")
1235     return true;
1236 
1237   // Explicitly handle custom-parsed pass names.
1238   if (parseRepeatPassName(Name))
1239     return true;
1240   if (parseDevirtPassName(Name))
1241     return true;
1242 
1243 #define CGSCC_PASS(NAME, CREATE_PASS)                                          \
1244   if (Name == NAME)                                                            \
1245     return true;
1246 #define CGSCC_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)       \
1247   if (checkParametrizedPassName(Name, NAME))                                   \
1248     return true;
1249 #define CGSCC_ANALYSIS(NAME, CREATE_PASS)                                      \
1250   if (Name == "require<" NAME ">" || Name == "invalidate<" NAME ">")           \
1251     return true;
1252 #include "PassRegistry.def"
1253 
1254   return callbacksAcceptPassName<CGSCCPassManager>(Name, Callbacks);
1255 }
1256 
1257 template <typename CallbacksT>
1258 static bool isFunctionPassName(StringRef Name, CallbacksT &Callbacks) {
1259   // Explicitly handle pass manager names.
1260   StringRef NameNoBracket = Name.take_until([](char C) { return C == '<'; });
1261   if (NameNoBracket == "function")
1262     return true;
1263   if (Name == "loop" || Name == "loop-mssa")
1264     return true;
1265 
1266   // Explicitly handle custom-parsed pass names.
1267   if (parseRepeatPassName(Name))
1268     return true;
1269 
1270 #define FUNCTION_PASS(NAME, CREATE_PASS)                                       \
1271   if (Name == NAME)                                                            \
1272     return true;
1273 #define FUNCTION_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)    \
1274   if (checkParametrizedPassName(Name, NAME))                                   \
1275     return true;
1276 #define FUNCTION_ANALYSIS(NAME, CREATE_PASS)                                   \
1277   if (Name == "require<" NAME ">" || Name == "invalidate<" NAME ">")           \
1278     return true;
1279 #include "PassRegistry.def"
1280 
1281   return callbacksAcceptPassName<FunctionPassManager>(Name, Callbacks);
1282 }
1283 
1284 template <typename CallbacksT>
1285 static bool isLoopNestPassName(StringRef Name, CallbacksT &Callbacks,
1286                                bool &UseMemorySSA) {
1287   UseMemorySSA = false;
1288 
1289   // Explicitly handle custom-parsed pass names.
1290   if (parseRepeatPassName(Name))
1291     return true;
1292 
1293   if (checkParametrizedPassName(Name, "lnicm")) {
1294     UseMemorySSA = true;
1295     return true;
1296   }
1297 
1298 #define LOOPNEST_PASS(NAME, CREATE_PASS)                                       \
1299   if (Name == NAME)                                                            \
1300     return true;
1301 #include "PassRegistry.def"
1302 
1303   return callbacksAcceptPassName<LoopPassManager>(Name, Callbacks);
1304 }
1305 
1306 template <typename CallbacksT>
1307 static bool isLoopPassName(StringRef Name, CallbacksT &Callbacks,
1308                            bool &UseMemorySSA) {
1309   UseMemorySSA = false;
1310 
1311   // Explicitly handle custom-parsed pass names.
1312   if (parseRepeatPassName(Name))
1313     return true;
1314 
1315   if (checkParametrizedPassName(Name, "licm")) {
1316     UseMemorySSA = true;
1317     return true;
1318   }
1319 
1320 #define LOOP_PASS(NAME, CREATE_PASS)                                           \
1321   if (Name == NAME)                                                            \
1322     return true;
1323 #define LOOP_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)        \
1324   if (checkParametrizedPassName(Name, NAME))                                   \
1325     return true;
1326 #define LOOP_ANALYSIS(NAME, CREATE_PASS)                                       \
1327   if (Name == "require<" NAME ">" || Name == "invalidate<" NAME ">")           \
1328     return true;
1329 #include "PassRegistry.def"
1330 
1331   return callbacksAcceptPassName<LoopPassManager>(Name, Callbacks);
1332 }
1333 
1334 std::optional<std::vector<PassBuilder::PipelineElement>>
1335 PassBuilder::parsePipelineText(StringRef Text) {
1336   std::vector<PipelineElement> ResultPipeline;
1337 
1338   SmallVector<std::vector<PipelineElement> *, 4> PipelineStack = {
1339       &ResultPipeline};
1340   for (;;) {
1341     std::vector<PipelineElement> &Pipeline = *PipelineStack.back();
1342     size_t Pos = Text.find_first_of(",()");
1343     Pipeline.push_back({Text.substr(0, Pos), {}});
1344 
1345     // If we have a single terminating name, we're done.
1346     if (Pos == Text.npos)
1347       break;
1348 
1349     char Sep = Text[Pos];
1350     Text = Text.substr(Pos + 1);
1351     if (Sep == ',')
1352       // Just a name ending in a comma, continue.
1353       continue;
1354 
1355     if (Sep == '(') {
1356       // Push the inner pipeline onto the stack to continue processing.
1357       PipelineStack.push_back(&Pipeline.back().InnerPipeline);
1358       continue;
1359     }
1360 
1361     assert(Sep == ')' && "Bogus separator!");
1362     // When handling the close parenthesis, we greedily consume them to avoid
1363     // empty strings in the pipeline.
1364     do {
1365       // If we try to pop the outer pipeline we have unbalanced parentheses.
1366       if (PipelineStack.size() == 1)
1367         return std::nullopt;
1368 
1369       PipelineStack.pop_back();
1370     } while (Text.consume_front(")"));
1371 
1372     // Check if we've finished parsing.
1373     if (Text.empty())
1374       break;
1375 
1376     // Otherwise, the end of an inner pipeline always has to be followed by
1377     // a comma, and then we can continue.
1378     if (!Text.consume_front(","))
1379       return std::nullopt;
1380   }
1381 
1382   if (PipelineStack.size() > 1)
1383     // Unbalanced paretheses.
1384     return std::nullopt;
1385 
1386   assert(PipelineStack.back() == &ResultPipeline &&
1387          "Wrong pipeline at the bottom of the stack!");
1388   return {std::move(ResultPipeline)};
1389 }
1390 
1391 Error PassBuilder::parseModulePass(ModulePassManager &MPM,
1392                                    const PipelineElement &E) {
1393   auto &Name = E.Name;
1394   auto &InnerPipeline = E.InnerPipeline;
1395 
1396   // First handle complex passes like the pass managers which carry pipelines.
1397   if (!InnerPipeline.empty()) {
1398     if (Name == "module") {
1399       ModulePassManager NestedMPM;
1400       if (auto Err = parseModulePassPipeline(NestedMPM, InnerPipeline))
1401         return Err;
1402       MPM.addPass(std::move(NestedMPM));
1403       return Error::success();
1404     }
1405     if (Name == "coro-cond") {
1406       ModulePassManager NestedMPM;
1407       if (auto Err = parseModulePassPipeline(NestedMPM, InnerPipeline))
1408         return Err;
1409       MPM.addPass(CoroConditionalWrapper(std::move(NestedMPM)));
1410       return Error::success();
1411     }
1412     if (Name == "cgscc") {
1413       CGSCCPassManager CGPM;
1414       if (auto Err = parseCGSCCPassPipeline(CGPM, InnerPipeline))
1415         return Err;
1416       MPM.addPass(createModuleToPostOrderCGSCCPassAdaptor(std::move(CGPM)));
1417       return Error::success();
1418     }
1419     if (auto Params = parseFunctionPipelineName(Name)) {
1420       if (Params->second)
1421         return make_error<StringError>(
1422             "cannot have a no-rerun module to function adaptor",
1423             inconvertibleErrorCode());
1424       FunctionPassManager FPM;
1425       if (auto Err = parseFunctionPassPipeline(FPM, InnerPipeline))
1426         return Err;
1427       MPM.addPass(
1428           createModuleToFunctionPassAdaptor(std::move(FPM), Params->first));
1429       return Error::success();
1430     }
1431     if (auto Count = parseRepeatPassName(Name)) {
1432       ModulePassManager NestedMPM;
1433       if (auto Err = parseModulePassPipeline(NestedMPM, InnerPipeline))
1434         return Err;
1435       MPM.addPass(createRepeatedPass(*Count, std::move(NestedMPM)));
1436       return Error::success();
1437     }
1438 
1439     for (auto &C : ModulePipelineParsingCallbacks)
1440       if (C(Name, MPM, InnerPipeline))
1441         return Error::success();
1442 
1443     // Normal passes can't have pipelines.
1444     return make_error<StringError>(
1445         formatv("invalid use of '{0}' pass as module pipeline", Name).str(),
1446         inconvertibleErrorCode());
1447     ;
1448   }
1449 
1450   // Manually handle aliases for pre-configured pipeline fragments.
1451   if (startsWithDefaultPipelineAliasPrefix(Name)) {
1452     SmallVector<StringRef, 3> Matches;
1453     if (!DefaultAliasRegex.match(Name, &Matches))
1454       return make_error<StringError>(
1455           formatv("unknown default pipeline alias '{0}'", Name).str(),
1456           inconvertibleErrorCode());
1457 
1458     assert(Matches.size() == 3 && "Must capture two matched strings!");
1459 
1460     OptimizationLevel L = *parseOptLevel(Matches[2]);
1461 
1462     // This is consistent with old pass manager invoked via opt, but
1463     // inconsistent with clang. Clang doesn't enable loop vectorization
1464     // but does enable slp vectorization at Oz.
1465     PTO.LoopVectorization =
1466         L.getSpeedupLevel() > 1 && L != OptimizationLevel::Oz;
1467     PTO.SLPVectorization =
1468         L.getSpeedupLevel() > 1 && L != OptimizationLevel::Oz;
1469 
1470     if (Matches[1] == "default") {
1471       MPM.addPass(buildPerModuleDefaultPipeline(L));
1472     } else if (Matches[1] == "thinlto-pre-link") {
1473       MPM.addPass(buildThinLTOPreLinkDefaultPipeline(L));
1474     } else if (Matches[1] == "thinlto") {
1475       MPM.addPass(buildThinLTODefaultPipeline(L, nullptr));
1476     } else if (Matches[1] == "lto-pre-link") {
1477       if (PTO.UnifiedLTO)
1478         // When UnifiedLTO is enabled, use the ThinLTO pre-link pipeline. This
1479         // avoids compile-time performance regressions and keeps the pre-link
1480         // LTO pipeline "unified" for both LTO modes.
1481         MPM.addPass(buildThinLTOPreLinkDefaultPipeline(L));
1482       else
1483         MPM.addPass(buildLTOPreLinkDefaultPipeline(L));
1484     } else {
1485       assert(Matches[1] == "lto" && "Not one of the matched options!");
1486       MPM.addPass(buildLTODefaultPipeline(L, nullptr));
1487     }
1488     return Error::success();
1489   }
1490 
1491   // Finally expand the basic registered passes from the .inc file.
1492 #define MODULE_PASS(NAME, CREATE_PASS)                                         \
1493   if (Name == NAME) {                                                          \
1494     MPM.addPass(CREATE_PASS);                                                  \
1495     return Error::success();                                                   \
1496   }
1497 #define MODULE_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)      \
1498   if (checkParametrizedPassName(Name, NAME)) {                                 \
1499     auto Params = parsePassParameters(PARSER, Name, NAME);                     \
1500     if (!Params)                                                               \
1501       return Params.takeError();                                               \
1502     MPM.addPass(CREATE_PASS(Params.get()));                                    \
1503     return Error::success();                                                   \
1504   }
1505 #define MODULE_ANALYSIS(NAME, CREATE_PASS)                                     \
1506   if (Name == "require<" NAME ">") {                                           \
1507     MPM.addPass(                                                               \
1508         RequireAnalysisPass<                                                   \
1509             std::remove_reference_t<decltype(CREATE_PASS)>, Module>());        \
1510     return Error::success();                                                   \
1511   }                                                                            \
1512   if (Name == "invalidate<" NAME ">") {                                        \
1513     MPM.addPass(InvalidateAnalysisPass<                                        \
1514                 std::remove_reference_t<decltype(CREATE_PASS)>>());            \
1515     return Error::success();                                                   \
1516   }
1517 #define CGSCC_PASS(NAME, CREATE_PASS)                                          \
1518   if (Name == NAME) {                                                          \
1519     MPM.addPass(createModuleToPostOrderCGSCCPassAdaptor(CREATE_PASS));         \
1520     return Error::success();                                                   \
1521   }
1522 #define CGSCC_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)       \
1523   if (checkParametrizedPassName(Name, NAME)) {                                 \
1524     auto Params = parsePassParameters(PARSER, Name, NAME);                     \
1525     if (!Params)                                                               \
1526       return Params.takeError();                                               \
1527     MPM.addPass(                                                               \
1528         createModuleToPostOrderCGSCCPassAdaptor(CREATE_PASS(Params.get())));   \
1529     return Error::success();                                                   \
1530   }
1531 #define FUNCTION_PASS(NAME, CREATE_PASS)                                       \
1532   if (Name == NAME) {                                                          \
1533     MPM.addPass(createModuleToFunctionPassAdaptor(CREATE_PASS));               \
1534     return Error::success();                                                   \
1535   }
1536 #define FUNCTION_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)    \
1537   if (checkParametrizedPassName(Name, NAME)) {                                 \
1538     auto Params = parsePassParameters(PARSER, Name, NAME);                     \
1539     if (!Params)                                                               \
1540       return Params.takeError();                                               \
1541     MPM.addPass(createModuleToFunctionPassAdaptor(CREATE_PASS(Params.get()))); \
1542     return Error::success();                                                   \
1543   }
1544 #define LOOPNEST_PASS(NAME, CREATE_PASS)                                       \
1545   if (Name == NAME) {                                                          \
1546     MPM.addPass(createModuleToFunctionPassAdaptor(                             \
1547         createFunctionToLoopPassAdaptor(CREATE_PASS, false, false)));          \
1548     return Error::success();                                                   \
1549   }
1550 #define LOOP_PASS(NAME, CREATE_PASS)                                           \
1551   if (Name == NAME) {                                                          \
1552     MPM.addPass(createModuleToFunctionPassAdaptor(                             \
1553         createFunctionToLoopPassAdaptor(CREATE_PASS, false, false)));          \
1554     return Error::success();                                                   \
1555   }
1556 #define LOOP_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)        \
1557   if (checkParametrizedPassName(Name, NAME)) {                                 \
1558     auto Params = parsePassParameters(PARSER, Name, NAME);                     \
1559     if (!Params)                                                               \
1560       return Params.takeError();                                               \
1561     MPM.addPass(                                                               \
1562         createModuleToFunctionPassAdaptor(createFunctionToLoopPassAdaptor(     \
1563             CREATE_PASS(Params.get()), false, false)));                        \
1564     return Error::success();                                                   \
1565   }
1566 #include "PassRegistry.def"
1567 
1568   for (auto &C : ModulePipelineParsingCallbacks)
1569     if (C(Name, MPM, InnerPipeline))
1570       return Error::success();
1571   return make_error<StringError>(
1572       formatv("unknown module pass '{0}'", Name).str(),
1573       inconvertibleErrorCode());
1574 }
1575 
1576 Error PassBuilder::parseCGSCCPass(CGSCCPassManager &CGPM,
1577                                   const PipelineElement &E) {
1578   auto &Name = E.Name;
1579   auto &InnerPipeline = E.InnerPipeline;
1580 
1581   // First handle complex passes like the pass managers which carry pipelines.
1582   if (!InnerPipeline.empty()) {
1583     if (Name == "cgscc") {
1584       CGSCCPassManager NestedCGPM;
1585       if (auto Err = parseCGSCCPassPipeline(NestedCGPM, InnerPipeline))
1586         return Err;
1587       // Add the nested pass manager with the appropriate adaptor.
1588       CGPM.addPass(std::move(NestedCGPM));
1589       return Error::success();
1590     }
1591     if (auto Params = parseFunctionPipelineName(Name)) {
1592       FunctionPassManager FPM;
1593       if (auto Err = parseFunctionPassPipeline(FPM, InnerPipeline))
1594         return Err;
1595       // Add the nested pass manager with the appropriate adaptor.
1596       CGPM.addPass(createCGSCCToFunctionPassAdaptor(
1597           std::move(FPM), Params->first, Params->second));
1598       return Error::success();
1599     }
1600     if (auto Count = parseRepeatPassName(Name)) {
1601       CGSCCPassManager NestedCGPM;
1602       if (auto Err = parseCGSCCPassPipeline(NestedCGPM, InnerPipeline))
1603         return Err;
1604       CGPM.addPass(createRepeatedPass(*Count, std::move(NestedCGPM)));
1605       return Error::success();
1606     }
1607     if (auto MaxRepetitions = parseDevirtPassName(Name)) {
1608       CGSCCPassManager NestedCGPM;
1609       if (auto Err = parseCGSCCPassPipeline(NestedCGPM, InnerPipeline))
1610         return Err;
1611       CGPM.addPass(
1612           createDevirtSCCRepeatedPass(std::move(NestedCGPM), *MaxRepetitions));
1613       return Error::success();
1614     }
1615 
1616     for (auto &C : CGSCCPipelineParsingCallbacks)
1617       if (C(Name, CGPM, InnerPipeline))
1618         return Error::success();
1619 
1620     // Normal passes can't have pipelines.
1621     return make_error<StringError>(
1622         formatv("invalid use of '{0}' pass as cgscc pipeline", Name).str(),
1623         inconvertibleErrorCode());
1624   }
1625 
1626 // Now expand the basic registered passes from the .inc file.
1627 #define CGSCC_PASS(NAME, CREATE_PASS)                                          \
1628   if (Name == NAME) {                                                          \
1629     CGPM.addPass(CREATE_PASS);                                                 \
1630     return Error::success();                                                   \
1631   }
1632 #define CGSCC_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)       \
1633   if (checkParametrizedPassName(Name, NAME)) {                                 \
1634     auto Params = parsePassParameters(PARSER, Name, NAME);                     \
1635     if (!Params)                                                               \
1636       return Params.takeError();                                               \
1637     CGPM.addPass(CREATE_PASS(Params.get()));                                   \
1638     return Error::success();                                                   \
1639   }
1640 #define CGSCC_ANALYSIS(NAME, CREATE_PASS)                                      \
1641   if (Name == "require<" NAME ">") {                                           \
1642     CGPM.addPass(RequireAnalysisPass<                                          \
1643                  std::remove_reference_t<decltype(CREATE_PASS)>,               \
1644                  LazyCallGraph::SCC, CGSCCAnalysisManager, LazyCallGraph &,    \
1645                  CGSCCUpdateResult &>());                                      \
1646     return Error::success();                                                   \
1647   }                                                                            \
1648   if (Name == "invalidate<" NAME ">") {                                        \
1649     CGPM.addPass(InvalidateAnalysisPass<                                       \
1650                  std::remove_reference_t<decltype(CREATE_PASS)>>());           \
1651     return Error::success();                                                   \
1652   }
1653 #define FUNCTION_PASS(NAME, CREATE_PASS)                                       \
1654   if (Name == NAME) {                                                          \
1655     CGPM.addPass(createCGSCCToFunctionPassAdaptor(CREATE_PASS));               \
1656     return Error::success();                                                   \
1657   }
1658 #define FUNCTION_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)    \
1659   if (checkParametrizedPassName(Name, NAME)) {                                 \
1660     auto Params = parsePassParameters(PARSER, Name, NAME);                     \
1661     if (!Params)                                                               \
1662       return Params.takeError();                                               \
1663     CGPM.addPass(createCGSCCToFunctionPassAdaptor(CREATE_PASS(Params.get()))); \
1664     return Error::success();                                                   \
1665   }
1666 #define LOOPNEST_PASS(NAME, CREATE_PASS)                                       \
1667   if (Name == NAME) {                                                          \
1668     CGPM.addPass(createCGSCCToFunctionPassAdaptor(                             \
1669         createFunctionToLoopPassAdaptor(CREATE_PASS, false, false)));          \
1670     return Error::success();                                                   \
1671   }
1672 #define LOOP_PASS(NAME, CREATE_PASS)                                           \
1673   if (Name == NAME) {                                                          \
1674     CGPM.addPass(createCGSCCToFunctionPassAdaptor(                             \
1675         createFunctionToLoopPassAdaptor(CREATE_PASS, false, false)));          \
1676     return Error::success();                                                   \
1677   }
1678 #define LOOP_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)        \
1679   if (checkParametrizedPassName(Name, NAME)) {                                 \
1680     auto Params = parsePassParameters(PARSER, Name, NAME);                     \
1681     if (!Params)                                                               \
1682       return Params.takeError();                                               \
1683     CGPM.addPass(                                                              \
1684         createCGSCCToFunctionPassAdaptor(createFunctionToLoopPassAdaptor(      \
1685             CREATE_PASS(Params.get()), false, false)));                        \
1686     return Error::success();                                                   \
1687   }
1688 #include "PassRegistry.def"
1689 
1690   for (auto &C : CGSCCPipelineParsingCallbacks)
1691     if (C(Name, CGPM, InnerPipeline))
1692       return Error::success();
1693   return make_error<StringError>(
1694       formatv("unknown cgscc pass '{0}'", Name).str(),
1695       inconvertibleErrorCode());
1696 }
1697 
1698 Error PassBuilder::parseFunctionPass(FunctionPassManager &FPM,
1699                                      const PipelineElement &E) {
1700   auto &Name = E.Name;
1701   auto &InnerPipeline = E.InnerPipeline;
1702 
1703   // First handle complex passes like the pass managers which carry pipelines.
1704   if (!InnerPipeline.empty()) {
1705     if (Name == "function") {
1706       FunctionPassManager NestedFPM;
1707       if (auto Err = parseFunctionPassPipeline(NestedFPM, InnerPipeline))
1708         return Err;
1709       // Add the nested pass manager with the appropriate adaptor.
1710       FPM.addPass(std::move(NestedFPM));
1711       return Error::success();
1712     }
1713     if (Name == "loop" || Name == "loop-mssa") {
1714       LoopPassManager LPM;
1715       if (auto Err = parseLoopPassPipeline(LPM, InnerPipeline))
1716         return Err;
1717       // Add the nested pass manager with the appropriate adaptor.
1718       bool UseMemorySSA = (Name == "loop-mssa");
1719       bool UseBFI = llvm::any_of(InnerPipeline, [](auto Pipeline) {
1720         return Pipeline.Name.contains("simple-loop-unswitch");
1721       });
1722       bool UseBPI = llvm::any_of(InnerPipeline, [](auto Pipeline) {
1723         return Pipeline.Name == "loop-predication";
1724       });
1725       FPM.addPass(createFunctionToLoopPassAdaptor(std::move(LPM), UseMemorySSA,
1726                                                   UseBFI, UseBPI));
1727       return Error::success();
1728     }
1729     if (auto Count = parseRepeatPassName(Name)) {
1730       FunctionPassManager NestedFPM;
1731       if (auto Err = parseFunctionPassPipeline(NestedFPM, InnerPipeline))
1732         return Err;
1733       FPM.addPass(createRepeatedPass(*Count, std::move(NestedFPM)));
1734       return Error::success();
1735     }
1736 
1737     for (auto &C : FunctionPipelineParsingCallbacks)
1738       if (C(Name, FPM, InnerPipeline))
1739         return Error::success();
1740 
1741     // Normal passes can't have pipelines.
1742     return make_error<StringError>(
1743         formatv("invalid use of '{0}' pass as function pipeline", Name).str(),
1744         inconvertibleErrorCode());
1745   }
1746 
1747 // Now expand the basic registered passes from the .inc file.
1748 #define FUNCTION_PASS(NAME, CREATE_PASS)                                       \
1749   if (Name == NAME) {                                                          \
1750     FPM.addPass(CREATE_PASS);                                                  \
1751     return Error::success();                                                   \
1752   }
1753 #define FUNCTION_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)    \
1754   if (checkParametrizedPassName(Name, NAME)) {                                 \
1755     auto Params = parsePassParameters(PARSER, Name, NAME);                     \
1756     if (!Params)                                                               \
1757       return Params.takeError();                                               \
1758     FPM.addPass(CREATE_PASS(Params.get()));                                    \
1759     return Error::success();                                                   \
1760   }
1761 #define FUNCTION_ANALYSIS(NAME, CREATE_PASS)                                   \
1762   if (Name == "require<" NAME ">") {                                           \
1763     FPM.addPass(                                                               \
1764         RequireAnalysisPass<                                                   \
1765             std::remove_reference_t<decltype(CREATE_PASS)>, Function>());      \
1766     return Error::success();                                                   \
1767   }                                                                            \
1768   if (Name == "invalidate<" NAME ">") {                                        \
1769     FPM.addPass(InvalidateAnalysisPass<                                        \
1770                 std::remove_reference_t<decltype(CREATE_PASS)>>());            \
1771     return Error::success();                                                   \
1772   }
1773 // FIXME: UseMemorySSA is set to false. Maybe we could do things like:
1774 //        bool UseMemorySSA = !("canon-freeze" || "loop-predication" ||
1775 //                              "guard-widening");
1776 //        The risk is that it may become obsolete if we're not careful.
1777 #define LOOPNEST_PASS(NAME, CREATE_PASS)                                       \
1778   if (Name == NAME) {                                                          \
1779     FPM.addPass(createFunctionToLoopPassAdaptor(CREATE_PASS, false, false));   \
1780     return Error::success();                                                   \
1781   }
1782 #define LOOP_PASS(NAME, CREATE_PASS)                                           \
1783   if (Name == NAME) {                                                          \
1784     FPM.addPass(createFunctionToLoopPassAdaptor(CREATE_PASS, false, false));   \
1785     return Error::success();                                                   \
1786   }
1787 #define LOOP_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)        \
1788   if (checkParametrizedPassName(Name, NAME)) {                                 \
1789     auto Params = parsePassParameters(PARSER, Name, NAME);                     \
1790     if (!Params)                                                               \
1791       return Params.takeError();                                               \
1792     FPM.addPass(createFunctionToLoopPassAdaptor(CREATE_PASS(Params.get()),     \
1793                                                 false, false));                \
1794     return Error::success();                                                   \
1795   }
1796 #include "PassRegistry.def"
1797 
1798   for (auto &C : FunctionPipelineParsingCallbacks)
1799     if (C(Name, FPM, InnerPipeline))
1800       return Error::success();
1801   return make_error<StringError>(
1802       formatv("unknown function pass '{0}'", Name).str(),
1803       inconvertibleErrorCode());
1804 }
1805 
1806 Error PassBuilder::parseLoopPass(LoopPassManager &LPM,
1807                                  const PipelineElement &E) {
1808   StringRef Name = E.Name;
1809   auto &InnerPipeline = E.InnerPipeline;
1810 
1811   // First handle complex passes like the pass managers which carry pipelines.
1812   if (!InnerPipeline.empty()) {
1813     if (Name == "loop") {
1814       LoopPassManager NestedLPM;
1815       if (auto Err = parseLoopPassPipeline(NestedLPM, InnerPipeline))
1816         return Err;
1817       // Add the nested pass manager with the appropriate adaptor.
1818       LPM.addPass(std::move(NestedLPM));
1819       return Error::success();
1820     }
1821     if (auto Count = parseRepeatPassName(Name)) {
1822       LoopPassManager NestedLPM;
1823       if (auto Err = parseLoopPassPipeline(NestedLPM, InnerPipeline))
1824         return Err;
1825       LPM.addPass(createRepeatedPass(*Count, std::move(NestedLPM)));
1826       return Error::success();
1827     }
1828 
1829     for (auto &C : LoopPipelineParsingCallbacks)
1830       if (C(Name, LPM, InnerPipeline))
1831         return Error::success();
1832 
1833     // Normal passes can't have pipelines.
1834     return make_error<StringError>(
1835         formatv("invalid use of '{0}' pass as loop pipeline", Name).str(),
1836         inconvertibleErrorCode());
1837   }
1838 
1839 // Now expand the basic registered passes from the .inc file.
1840 #define LOOPNEST_PASS(NAME, CREATE_PASS)                                       \
1841   if (Name == NAME) {                                                          \
1842     LPM.addPass(CREATE_PASS);                                                  \
1843     return Error::success();                                                   \
1844   }
1845 #define LOOP_PASS(NAME, CREATE_PASS)                                           \
1846   if (Name == NAME) {                                                          \
1847     LPM.addPass(CREATE_PASS);                                                  \
1848     return Error::success();                                                   \
1849   }
1850 #define LOOP_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)        \
1851   if (checkParametrizedPassName(Name, NAME)) {                                 \
1852     auto Params = parsePassParameters(PARSER, Name, NAME);                     \
1853     if (!Params)                                                               \
1854       return Params.takeError();                                               \
1855     LPM.addPass(CREATE_PASS(Params.get()));                                    \
1856     return Error::success();                                                   \
1857   }
1858 #define LOOP_ANALYSIS(NAME, CREATE_PASS)                                       \
1859   if (Name == "require<" NAME ">") {                                           \
1860     LPM.addPass(RequireAnalysisPass<                                           \
1861                 std::remove_reference_t<decltype(CREATE_PASS)>, Loop,          \
1862                 LoopAnalysisManager, LoopStandardAnalysisResults &,            \
1863                 LPMUpdater &>());                                              \
1864     return Error::success();                                                   \
1865   }                                                                            \
1866   if (Name == "invalidate<" NAME ">") {                                        \
1867     LPM.addPass(InvalidateAnalysisPass<                                        \
1868                 std::remove_reference_t<decltype(CREATE_PASS)>>());            \
1869     return Error::success();                                                   \
1870   }
1871 #include "PassRegistry.def"
1872 
1873   for (auto &C : LoopPipelineParsingCallbacks)
1874     if (C(Name, LPM, InnerPipeline))
1875       return Error::success();
1876   return make_error<StringError>(formatv("unknown loop pass '{0}'", Name).str(),
1877                                  inconvertibleErrorCode());
1878 }
1879 
1880 bool PassBuilder::parseAAPassName(AAManager &AA, StringRef Name) {
1881 #define MODULE_ALIAS_ANALYSIS(NAME, CREATE_PASS)                               \
1882   if (Name == NAME) {                                                          \
1883     AA.registerModuleAnalysis<                                                 \
1884         std::remove_reference_t<decltype(CREATE_PASS)>>();                     \
1885     return true;                                                               \
1886   }
1887 #define FUNCTION_ALIAS_ANALYSIS(NAME, CREATE_PASS)                             \
1888   if (Name == NAME) {                                                          \
1889     AA.registerFunctionAnalysis<                                               \
1890         std::remove_reference_t<decltype(CREATE_PASS)>>();                     \
1891     return true;                                                               \
1892   }
1893 #include "PassRegistry.def"
1894 
1895   for (auto &C : AAParsingCallbacks)
1896     if (C(Name, AA))
1897       return true;
1898   return false;
1899 }
1900 
1901 Error PassBuilder::parseLoopPassPipeline(LoopPassManager &LPM,
1902                                          ArrayRef<PipelineElement> Pipeline) {
1903   for (const auto &Element : Pipeline) {
1904     if (auto Err = parseLoopPass(LPM, Element))
1905       return Err;
1906   }
1907   return Error::success();
1908 }
1909 
1910 Error PassBuilder::parseFunctionPassPipeline(
1911     FunctionPassManager &FPM, ArrayRef<PipelineElement> Pipeline) {
1912   for (const auto &Element : Pipeline) {
1913     if (auto Err = parseFunctionPass(FPM, Element))
1914       return Err;
1915   }
1916   return Error::success();
1917 }
1918 
1919 Error PassBuilder::parseCGSCCPassPipeline(CGSCCPassManager &CGPM,
1920                                           ArrayRef<PipelineElement> Pipeline) {
1921   for (const auto &Element : Pipeline) {
1922     if (auto Err = parseCGSCCPass(CGPM, Element))
1923       return Err;
1924   }
1925   return Error::success();
1926 }
1927 
1928 void PassBuilder::crossRegisterProxies(LoopAnalysisManager &LAM,
1929                                        FunctionAnalysisManager &FAM,
1930                                        CGSCCAnalysisManager &CGAM,
1931                                        ModuleAnalysisManager &MAM) {
1932   MAM.registerPass([&] { return FunctionAnalysisManagerModuleProxy(FAM); });
1933   MAM.registerPass([&] { return CGSCCAnalysisManagerModuleProxy(CGAM); });
1934   CGAM.registerPass([&] { return ModuleAnalysisManagerCGSCCProxy(MAM); });
1935   FAM.registerPass([&] { return CGSCCAnalysisManagerFunctionProxy(CGAM); });
1936   FAM.registerPass([&] { return ModuleAnalysisManagerFunctionProxy(MAM); });
1937   FAM.registerPass([&] { return LoopAnalysisManagerFunctionProxy(LAM); });
1938   LAM.registerPass([&] { return FunctionAnalysisManagerLoopProxy(FAM); });
1939 }
1940 
1941 Error PassBuilder::parseModulePassPipeline(ModulePassManager &MPM,
1942                                            ArrayRef<PipelineElement> Pipeline) {
1943   for (const auto &Element : Pipeline) {
1944     if (auto Err = parseModulePass(MPM, Element))
1945       return Err;
1946   }
1947   return Error::success();
1948 }
1949 
1950 // Primary pass pipeline description parsing routine for a \c ModulePassManager
1951 // FIXME: Should this routine accept a TargetMachine or require the caller to
1952 // pre-populate the analysis managers with target-specific stuff?
1953 Error PassBuilder::parsePassPipeline(ModulePassManager &MPM,
1954                                      StringRef PipelineText) {
1955   auto Pipeline = parsePipelineText(PipelineText);
1956   if (!Pipeline || Pipeline->empty())
1957     return make_error<StringError>(
1958         formatv("invalid pipeline '{0}'", PipelineText).str(),
1959         inconvertibleErrorCode());
1960 
1961   // If the first name isn't at the module layer, wrap the pipeline up
1962   // automatically.
1963   StringRef FirstName = Pipeline->front().Name;
1964 
1965   if (!isModulePassName(FirstName, ModulePipelineParsingCallbacks)) {
1966     bool UseMemorySSA;
1967     if (isCGSCCPassName(FirstName, CGSCCPipelineParsingCallbacks)) {
1968       Pipeline = {{"cgscc", std::move(*Pipeline)}};
1969     } else if (isFunctionPassName(FirstName,
1970                                   FunctionPipelineParsingCallbacks)) {
1971       Pipeline = {{"function", std::move(*Pipeline)}};
1972     } else if (isLoopNestPassName(FirstName, LoopPipelineParsingCallbacks,
1973                                   UseMemorySSA)) {
1974       Pipeline = {{"function", {{UseMemorySSA ? "loop-mssa" : "loop",
1975                                  std::move(*Pipeline)}}}};
1976     } else if (isLoopPassName(FirstName, LoopPipelineParsingCallbacks,
1977                               UseMemorySSA)) {
1978       Pipeline = {{"function", {{UseMemorySSA ? "loop-mssa" : "loop",
1979                                  std::move(*Pipeline)}}}};
1980     } else {
1981       for (auto &C : TopLevelPipelineParsingCallbacks)
1982         if (C(MPM, *Pipeline))
1983           return Error::success();
1984 
1985       // Unknown pass or pipeline name!
1986       auto &InnerPipeline = Pipeline->front().InnerPipeline;
1987       return make_error<StringError>(
1988           formatv("unknown {0} name '{1}'",
1989                   (InnerPipeline.empty() ? "pass" : "pipeline"), FirstName)
1990               .str(),
1991           inconvertibleErrorCode());
1992     }
1993   }
1994 
1995   if (auto Err = parseModulePassPipeline(MPM, *Pipeline))
1996     return Err;
1997   return Error::success();
1998 }
1999 
2000 // Primary pass pipeline description parsing routine for a \c CGSCCPassManager
2001 Error PassBuilder::parsePassPipeline(CGSCCPassManager &CGPM,
2002                                      StringRef PipelineText) {
2003   auto Pipeline = parsePipelineText(PipelineText);
2004   if (!Pipeline || Pipeline->empty())
2005     return make_error<StringError>(
2006         formatv("invalid pipeline '{0}'", PipelineText).str(),
2007         inconvertibleErrorCode());
2008 
2009   StringRef FirstName = Pipeline->front().Name;
2010   if (!isCGSCCPassName(FirstName, CGSCCPipelineParsingCallbacks))
2011     return make_error<StringError>(
2012         formatv("unknown cgscc pass '{0}' in pipeline '{1}'", FirstName,
2013                 PipelineText)
2014             .str(),
2015         inconvertibleErrorCode());
2016 
2017   if (auto Err = parseCGSCCPassPipeline(CGPM, *Pipeline))
2018     return Err;
2019   return Error::success();
2020 }
2021 
2022 // Primary pass pipeline description parsing routine for a \c
2023 // FunctionPassManager
2024 Error PassBuilder::parsePassPipeline(FunctionPassManager &FPM,
2025                                      StringRef PipelineText) {
2026   auto Pipeline = parsePipelineText(PipelineText);
2027   if (!Pipeline || Pipeline->empty())
2028     return make_error<StringError>(
2029         formatv("invalid pipeline '{0}'", PipelineText).str(),
2030         inconvertibleErrorCode());
2031 
2032   StringRef FirstName = Pipeline->front().Name;
2033   if (!isFunctionPassName(FirstName, FunctionPipelineParsingCallbacks))
2034     return make_error<StringError>(
2035         formatv("unknown function pass '{0}' in pipeline '{1}'", FirstName,
2036                 PipelineText)
2037             .str(),
2038         inconvertibleErrorCode());
2039 
2040   if (auto Err = parseFunctionPassPipeline(FPM, *Pipeline))
2041     return Err;
2042   return Error::success();
2043 }
2044 
2045 // Primary pass pipeline description parsing routine for a \c LoopPassManager
2046 Error PassBuilder::parsePassPipeline(LoopPassManager &CGPM,
2047                                      StringRef PipelineText) {
2048   auto Pipeline = parsePipelineText(PipelineText);
2049   if (!Pipeline || Pipeline->empty())
2050     return make_error<StringError>(
2051         formatv("invalid pipeline '{0}'", PipelineText).str(),
2052         inconvertibleErrorCode());
2053 
2054   if (auto Err = parseLoopPassPipeline(CGPM, *Pipeline))
2055     return Err;
2056 
2057   return Error::success();
2058 }
2059 
2060 Error PassBuilder::parseAAPipeline(AAManager &AA, StringRef PipelineText) {
2061   // If the pipeline just consists of the word 'default' just replace the AA
2062   // manager with our default one.
2063   if (PipelineText == "default") {
2064     AA = buildDefaultAAPipeline();
2065     return Error::success();
2066   }
2067 
2068   while (!PipelineText.empty()) {
2069     StringRef Name;
2070     std::tie(Name, PipelineText) = PipelineText.split(',');
2071     if (!parseAAPassName(AA, Name))
2072       return make_error<StringError>(
2073           formatv("unknown alias analysis name '{0}'", Name).str(),
2074           inconvertibleErrorCode());
2075   }
2076 
2077   return Error::success();
2078 }
2079 
2080 static void printPassName(StringRef PassName, raw_ostream &OS) {
2081   OS << "  " << PassName << "\n";
2082 }
2083 static void printPassName(StringRef PassName, StringRef Params,
2084                           raw_ostream &OS) {
2085   OS << "  " << PassName << "<" << Params << ">\n";
2086 }
2087 
2088 void PassBuilder::printPassNames(raw_ostream &OS) {
2089   // TODO: print pass descriptions when they are available
2090 
2091   OS << "Module passes:\n";
2092 #define MODULE_PASS(NAME, CREATE_PASS) printPassName(NAME, OS);
2093 #include "PassRegistry.def"
2094 
2095   OS << "Module passes with params:\n";
2096 #define MODULE_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)      \
2097   printPassName(NAME, PARAMS, OS);
2098 #include "PassRegistry.def"
2099 
2100   OS << "Module analyses:\n";
2101 #define MODULE_ANALYSIS(NAME, CREATE_PASS) printPassName(NAME, OS);
2102 #include "PassRegistry.def"
2103 
2104   OS << "Module alias analyses:\n";
2105 #define MODULE_ALIAS_ANALYSIS(NAME, CREATE_PASS) printPassName(NAME, OS);
2106 #include "PassRegistry.def"
2107 
2108   OS << "CGSCC passes:\n";
2109 #define CGSCC_PASS(NAME, CREATE_PASS) printPassName(NAME, OS);
2110 #include "PassRegistry.def"
2111 
2112   OS << "CGSCC passes with params:\n";
2113 #define CGSCC_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)       \
2114   printPassName(NAME, PARAMS, OS);
2115 #include "PassRegistry.def"
2116 
2117   OS << "CGSCC analyses:\n";
2118 #define CGSCC_ANALYSIS(NAME, CREATE_PASS) printPassName(NAME, OS);
2119 #include "PassRegistry.def"
2120 
2121   OS << "Function passes:\n";
2122 #define FUNCTION_PASS(NAME, CREATE_PASS) printPassName(NAME, OS);
2123 #include "PassRegistry.def"
2124 
2125   OS << "Function passes with params:\n";
2126 #define FUNCTION_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)    \
2127   printPassName(NAME, PARAMS, OS);
2128 #include "PassRegistry.def"
2129 
2130   OS << "Function analyses:\n";
2131 #define FUNCTION_ANALYSIS(NAME, CREATE_PASS) printPassName(NAME, OS);
2132 #include "PassRegistry.def"
2133 
2134   OS << "Function alias analyses:\n";
2135 #define FUNCTION_ALIAS_ANALYSIS(NAME, CREATE_PASS) printPassName(NAME, OS);
2136 #include "PassRegistry.def"
2137 
2138   OS << "LoopNest passes:\n";
2139 #define LOOPNEST_PASS(NAME, CREATE_PASS) printPassName(NAME, OS);
2140 #include "PassRegistry.def"
2141 
2142   OS << "Loop passes:\n";
2143 #define LOOP_PASS(NAME, CREATE_PASS) printPassName(NAME, OS);
2144 #include "PassRegistry.def"
2145 
2146   OS << "Loop passes with params:\n";
2147 #define LOOP_PASS_WITH_PARAMS(NAME, CLASS, CREATE_PASS, PARSER, PARAMS)        \
2148   printPassName(NAME, PARAMS, OS);
2149 #include "PassRegistry.def"
2150 
2151   OS << "Loop analyses:\n";
2152 #define LOOP_ANALYSIS(NAME, CREATE_PASS) printPassName(NAME, OS);
2153 #include "PassRegistry.def"
2154 }
2155 
2156 void PassBuilder::registerParseTopLevelPipelineCallback(
2157     const std::function<bool(ModulePassManager &, ArrayRef<PipelineElement>)>
2158         &C) {
2159   TopLevelPipelineParsingCallbacks.push_back(C);
2160 }
2161