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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: OptimizationRemarkEmitter.h

//===- OptimizationRemarkEmitter.h - Optimization Diagnostic ----*- 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
//
//===----------------------------------------------------------------------===//
//
// Optimization diagnostic interfaces.  It's packaged as an analysis pass so
// that by using this service passes become dependent on BFI as well.  BFI is
// used to compute the "hotness" of the diagnostic message.
//===----------------------------------------------------------------------===//

#ifndef LLVM_IR_OPTIMIZATIONDIAGNOSTICINFO_H
#define LLVM_IR_OPTIMIZATIONDIAGNOSTICINFO_H

#include "llvm/ADT/Optional.h"
#include "llvm/Analysis/BlockFrequencyInfo.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"

namespace llvm {
class Function;
class Value;

/// The optimization diagnostic interface.
///
/// It allows reporting when optimizations are performed and when they are not
/// along with the reasons for it.  Hotness information of the corresponding
/// code region can be included in the remark if DiagnosticsHotnessRequested is
/// enabled in the LLVM context.
class OptimizationRemarkEmitter {
public:
  OptimizationRemarkEmitter(const Function *F, BlockFrequencyInfo *BFI)
      : F(F), BFI(BFI) {}

/// This variant can be used to generate ORE on demand (without the
  /// analysis pass).
  ///
  /// Note that this ctor has a very different cost depending on whether
  /// F->getContext().getDiagnosticsHotnessRequested() is on or not.  If it's off
  /// the operation is free.
  ///
  /// Whereas if DiagnosticsHotnessRequested is on, it is fairly expensive
  /// operation since BFI and all its required analyses are computed.  This is
  /// for example useful for CGSCC passes that can't use function analyses
  /// passes in the old PM.
  OptimizationRemarkEmitter(const Function *F);

OptimizationRemarkEmitter(OptimizationRemarkEmitter &&Arg)
      : F(Arg.F), BFI(Arg.BFI) {}

OptimizationRemarkEmitter &operator=(OptimizationRemarkEmitter &&RHS) {
    F = RHS.F;
    BFI = RHS.BFI;
    return *this;
  }

/// Handle invalidation events in the new pass manager.
  bool invalidate(Function &F, const PreservedAnalyses &PA,
                  FunctionAnalysisManager::Invalidator &Inv);

/// Output the remark via the diagnostic handler and to the
  /// optimization record file.
  void emit(DiagnosticInfoOptimizationBase &OptDiag);

/// Take a lambda that returns a remark which will be emitted.  Second
  /// argument is only used to restrict this to functions.
  template <typename T>
  void emit(T RemarkBuilder, decltype(RemarkBuilder()) * = nullptr) {
    // Avoid building the remark unless we know there are at least *some*
    // remarks enabled. We can't currently check whether remarks are requested
    // for the calling pass since that requires actually building the remark.

if (F->getContext().getLLVMRemarkStreamer() ||
        F->getContext().getDiagHandlerPtr()->isAnyRemarkEnabled()) {
      auto R = RemarkBuilder();
      emit((DiagnosticInfoOptimizationBase &)R);
    }
  }

/// Whether we allow for extra compile-time budget to perform more
  /// analysis to produce fewer false positives.
  ///
  /// This is useful when reporting missed optimizations.  In this case we can
  /// use the extra analysis (1) to filter trivial false positives or (2) to
  /// provide more context so that non-trivial false positives can be quickly
  /// detected by the user.
  bool allowExtraAnalysis(StringRef PassName) const {
    return (F->getContext().getLLVMRemarkStreamer() ||
            F->getContext().getDiagHandlerPtr()->isAnyRemarkEnabled(PassName));
  }

private:
  const Function *F;

BlockFrequencyInfo *BFI;

/// If we generate BFI on demand, we need to free it when ORE is freed.
  std::unique_ptr<BlockFrequencyInfo> OwnedBFI;

/// Compute hotness from IR value (currently assumed to be a block) if PGO is
  /// available.
  Optional<uint64_t> computeHotness(const Value *V);

/// Similar but use value from \p OptDiag and update hotness there.
  void computeHotness(DiagnosticInfoIROptimization &OptDiag);

/// Only allow verbose messages if we know we're filtering by hotness
  /// (BFI is only set in this case).
  bool shouldEmitVerbose() { return BFI != nullptr; }

OptimizationRemarkEmitter(const OptimizationRemarkEmitter &) = delete;
  void operator=(const OptimizationRemarkEmitter &) = delete;
};

/// Add a small namespace to avoid name clashes with the classes used in
/// the streaming interface.  We want these to be short for better
/// write/readability.
namespace ore {
using NV = DiagnosticInfoOptimizationBase::Argument;
using setIsVerbose = DiagnosticInfoOptimizationBase::setIsVerbose;
using setExtraArgs = DiagnosticInfoOptimizationBase::setExtraArgs;
}

/// OptimizationRemarkEmitter legacy analysis pass
///
/// Note that this pass shouldn't generally be marked as preserved by other
/// passes.  It's holding onto BFI, so if the pass does not preserve BFI, BFI
/// could be freed.
class OptimizationRemarkEmitterWrapperPass : public FunctionPass {
  std::unique_ptr<OptimizationRemarkEmitter> ORE;

public:
  OptimizationRemarkEmitterWrapperPass();

bool runOnFunction(Function &F) override;

void getAnalysisUsage(AnalysisUsage &AU) const override;

OptimizationRemarkEmitter &getORE() {
    assert(ORE && "pass not run yet");
    return *ORE;
  }

static char ID;
};

class OptimizationRemarkEmitterAnalysis
    : public AnalysisInfoMixin<OptimizationRemarkEmitterAnalysis> {
  friend AnalysisInfoMixin<OptimizationRemarkEmitterAnalysis>;
  static AnalysisKey Key;

public:
  /// Provide the result typedef for this analysis pass.
  typedef OptimizationRemarkEmitter Result;

/// Run the analysis pass over a function and produce BFI.
  Result run(Function &F, FunctionAnalysisManager &AM);
};
}
#endif // LLVM_IR_OPTIMIZATIONDIAGNOSTICINFO_H

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