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📄 AliasAnalysis.h(51.98 KB)
📄 AliasAnalysisEvaluator.h(2.7 KB)
📄 AliasSetTracker.h(15.42 KB)
📄 AssumeBundleQueries.h(6.66 KB)
📄 AssumptionCache.h(8.39 KB)
📄 BasicAliasAnalysis.h(10.2 KB)
📄 BlockFrequencyInfo.h(5.59 KB)
📄 BlockFrequencyInfoImpl.h(56.46 KB)
📄 BranchProbabilityInfo.h(10.1 KB)
📄 CFG.h(7.76 KB)
📄 CFGPrinter.h(9.31 KB)
📄 CFLAliasAnalysisUtils.h(1.66 KB)
📄 CFLAndersAliasAnalysis.h(3.97 KB)
📄 CFLSteensAliasAnalysis.h(4.58 KB)
📄 CGSCCPassManager.h(41.2 KB)
📄 CallGraph.h(18.88 KB)
📄 CallGraphSCCPass.h(5.01 KB)
📄 CallPrinter.h(799 B)
📄 CaptureTracking.h(4.78 KB)
📄 CmpInstAnalysis.h(2.57 KB)
📄 CodeMetrics.h(3.15 KB)
📄 ConstantFolding.h(8.01 KB)
📄 DDG.h(19.15 KB)
📄 DOTGraphTraitsPass.h(5.5 KB)
📄 DemandedBits.h(4.07 KB)
📄 DependenceAnalysis.h(41.83 KB)
📄 DependenceGraphBuilder.h(7.74 KB)
📄 DivergenceAnalysis.h(7.38 KB)
📄 DomPrinter.h(1.04 KB)
📄 DomTreeUpdater.h(13.2 KB)
📄 DominanceFrontier.h(6.63 KB)
📄 DominanceFrontierImpl.h(7.12 KB)
📄 EHPersonalities.h(3.22 KB)
📄 GlobalsModRef.h(5.96 KB)
📄 GuardUtils.h(2.11 KB)
📄 HeatUtils.h(1.16 KB)
📄 IVDescriptors.h(14.56 KB)
📄 IVUsers.h(6.07 KB)
📄 IndirectCallPromotionAnalysis.h(2.61 KB)
📄 IndirectCallVisitor.h(1.16 KB)
📄 InlineAdvisor.h(8.71 KB)
📄 InlineCost.h(11.33 KB)
📄 InlineFeaturesAnalysis.h(1.5 KB)
📄 InlineModelFeatureMaps.h(3.41 KB)
📄 InlineSizeEstimatorAnalysis.h(1.07 KB)
📄 InstructionPrecedenceTracking.h(5.9 KB)
📄 InstructionSimplify.h(13.36 KB)
📄 Interval.h(4.84 KB)
📄 IntervalIterator.h(10.64 KB)
📄 IntervalPartition.h(4.05 KB)
📄 IteratedDominanceFrontier.h(2.62 KB)
📄 LazyBlockFrequencyInfo.h(4.34 KB)
📄 LazyBranchProbabilityInfo.h(4.21 KB)
📄 LazyCallGraph.h(50.13 KB)
📄 LazyValueInfo.h(5.4 KB)
📄 LegacyDivergenceAnalysis.h(2.53 KB)
📄 Lint.h(1.35 KB)
📄 Loads.h(7.86 KB)
📄 LoopAccessAnalysis.h(29.75 KB)
📄 LoopAnalysisManager.h(5.83 KB)
📄 LoopCacheAnalysis.h(11.91 KB)
📄 LoopInfo.h(48.27 KB)
📄 LoopInfoImpl.h(27.14 KB)
📄 LoopIterator.h(8.83 KB)
📄 LoopNestAnalysis.h(5.61 KB)
📄 LoopPass.h(4.29 KB)
📄 LoopUnrollAnalyzer.h(3.42 KB)
📄 MLInlineAdvisor.h(3.48 KB)
📄 MLModelRunner.h(1.16 KB)
📄 MemoryBuiltins.h(13.42 KB)
📄 MemoryDependenceAnalysis.h(20.82 KB)
📄 MemoryLocation.h(10.99 KB)
📄 MemorySSA.h(45.92 KB)
📄 MemorySSAUpdater.h(14.55 KB)
📄 ModuleSummaryAnalysis.h(3.44 KB)
📄 MustExecute.h(20.2 KB)
📄 ObjCARCAliasAnalysis.h(3.35 KB)
📄 ObjCARCAnalysisUtils.h(10.22 KB)
📄 ObjCARCInstKind.h(4.87 KB)
📄 OptimizationRemarkEmitter.h(5.93 KB)
📄 PHITransAddr.h(4.77 KB)
📄 Passes.h(3.88 KB)
📄 PhiValues.h(5.25 KB)
📄 PostDominators.h(3.41 KB)
📄 ProfileSummaryInfo.h(9.3 KB)
📄 PtrUseVisitor.h(9.96 KB)
📄 RegionInfo.h(35.23 KB)
📄 RegionInfoImpl.h(25.16 KB)
📄 RegionIterator.h(14.07 KB)
📄 RegionPass.h(4.05 KB)
📄 RegionPrinter.h(2.25 KB)
📄 ScalarEvolution.h(89.21 KB)
📄 ScalarEvolutionAliasAnalysis.h(2.09 KB)
📄 ScalarEvolutionDivision.h(2.48 KB)
📄 ScalarEvolutionExpressions.h(28.61 KB)
📄 ScalarEvolutionNormalization.h(2.47 KB)
📄 ScopedNoAliasAA.h(2.83 KB)
📄 SparsePropagation.h(19.43 KB)
📄 StackLifetime.h(6.16 KB)
📄 StackSafetyAnalysis.h(4.91 KB)
📄 SyncDependenceAnalysis.h(2.85 KB)
📄 SyntheticCountsUtils.h(1.85 KB)
📄 TargetFolder.h(11.04 KB)
📄 TargetLibraryInfo.def(55.35 KB)
📄 TargetLibraryInfo.h(16.86 KB)
📄 TargetTransformInfo.h(96.51 KB)
📄 TargetTransformInfoImpl.h(37.63 KB)
📄 Trace.h(4.1 KB)
📄 TypeBasedAliasAnalysis.h(3.05 KB)
📄 TypeMetadataUtils.h(1.94 KB)
📁 Utils
📄 ValueLattice.h(15.14 KB)
📄 ValueLatticeUtils.h(1.66 KB)
📄 ValueTracking.h(35.82 KB)
📄 VecFuncs.def(10.94 KB)
📄 VectorUtils.h(37.26 KB)

Editing: Trace.h

//===- llvm/Analysis/Trace.h - Represent one trace of LLVM code -*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This class represents a single trace of LLVM basic blocks.  A trace is a
// single entry, multiple exit, region of code that is often hot.  Trace-based
// optimizations treat traces almost like they are a large, strange, basic
// block: because the trace path is assumed to be hot, optimizations for the
// fall-through path are made at the expense of the non-fall-through paths.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_ANALYSIS_TRACE_H
#define LLVM_ANALYSIS_TRACE_H

#include <cassert>
#include <vector>

namespace llvm {

class BasicBlock;
class Function;
class Module;
class raw_ostream;

class Trace {
  using BasicBlockListType = std::vector<BasicBlock *>;

BasicBlockListType BasicBlocks;

public:
  /// Trace ctor - Make a new trace from a vector of basic blocks,
  /// residing in the function which is the parent of the first
  /// basic block in the vector.
  Trace(const std::vector<BasicBlock *> &vBB) : BasicBlocks (vBB) {}

/// getEntryBasicBlock - Return the entry basic block (first block)
  /// of the trace.
  BasicBlock *getEntryBasicBlock () const { return BasicBlocks[0]; }

/// operator[]/getBlock - Return basic block N in the trace.
  BasicBlock *operator[](unsigned i) const { return BasicBlocks[i]; }
  BasicBlock *getBlock(unsigned i)   const { return BasicBlocks[i]; }

/// getFunction - Return this trace's parent function.
  Function *getFunction () const;

/// getModule - Return this Module that contains this trace's parent
  /// function.
  Module *getModule () const;

/// getBlockIndex - Return the index of the specified basic block in the
  /// trace, or -1 if it is not in the trace.
  int getBlockIndex(const BasicBlock *X) const {
    for (unsigned i = 0, e = BasicBlocks.size(); i != e; ++i)
      if (BasicBlocks[i] == X)
        return i;
    return -1;
  }

/// contains - Returns true if this trace contains the given basic
  /// block.
  bool contains(const BasicBlock *X) const {
    return getBlockIndex(X) != -1;
  }

/// Returns true if B1 occurs before B2 in the trace, or if it is the same
  /// block as B2..  Both blocks must be in the trace.
  bool dominates(const BasicBlock *B1, const BasicBlock *B2) const {
    int B1Idx = getBlockIndex(B1), B2Idx = getBlockIndex(B2);
    assert(B1Idx != -1 && B2Idx != -1 && "Block is not in the trace!");
    return B1Idx <= B2Idx;
  }

// BasicBlock iterators...
  using iterator = BasicBlockListType::iterator;
  using const_iterator = BasicBlockListType::const_iterator;
  using reverse_iterator = std::reverse_iterator<iterator>;
  using const_reverse_iterator = std::reverse_iterator<const_iterator>;

iterator                begin()       { return BasicBlocks.begin(); }
  const_iterator          begin() const { return BasicBlocks.begin(); }
  iterator                end  ()       { return BasicBlocks.end();   }
  const_iterator          end  () const { return BasicBlocks.end();   }

reverse_iterator       rbegin()       { return BasicBlocks.rbegin(); }
  const_reverse_iterator rbegin() const { return BasicBlocks.rbegin(); }
  reverse_iterator       rend  ()       { return BasicBlocks.rend();   }
  const_reverse_iterator rend  () const { return BasicBlocks.rend();   }

unsigned                 size() const { return BasicBlocks.size(); }
  bool                    empty() const { return BasicBlocks.empty(); }

iterator erase(iterator q)               { return BasicBlocks.erase (q); }
  iterator erase(iterator q1, iterator q2) { return BasicBlocks.erase (q1, q2); }

/// print - Write trace to output stream.
  void print(raw_ostream &O) const;

/// dump - Debugger convenience method; writes trace to standard error
  /// output stream.
  void dump() const;
};

} // end namespace llvm

#endif // LLVM_ANALYSIS_TRACE_H

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