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📄 AliasAnalysis.cpp(33.55 KB)
📄 AliasAnalysisEvaluator.cpp(15.64 KB)
📄 AliasAnalysisSummary.cpp(3.49 KB)
📄 AliasAnalysisSummary.h(10.17 KB)
📄 AliasSetTracker.cpp(25.86 KB)
📄 Analysis.cpp(5.29 KB)
📄 AssumeBundleQueries.cpp(7.96 KB)
📄 AssumptionCache.cpp(10.94 KB)
📄 BasicAliasAnalysis.cpp(85.81 KB)
📄 BlockFrequencyInfo.cpp(12.39 KB)
📄 BlockFrequencyInfoImpl.cpp(28.6 KB)
📄 BranchProbabilityInfo.cpp(43.48 KB)
📄 CFG.cpp(9.9 KB)
📄 CFGPrinter.cpp(11.2 KB)
📄 CFLAndersAliasAnalysis.cpp(33.01 KB)
📄 CFLGraph.h(21.23 KB)
📄 CFLSteensAliasAnalysis.cpp(13.24 KB)
📄 CGSCCPassManager.cpp(31.2 KB)
📄 CallGraph.cpp(12.86 KB)
📄 CallGraphSCCPass.cpp(26.31 KB)
📄 CallPrinter.cpp(9.48 KB)
📄 CaptureTracking.cpp(15.38 KB)
📄 CmpInstAnalysis.cpp(4.63 KB)
📄 CodeMetrics.cpp(6.99 KB)
📄 ConstantFolding.cpp(105.15 KB)
📄 CostModel.cpp(3.87 KB)
📄 DDG.cpp(11.29 KB)
📄 Delinearization.cpp(4.49 KB)
📄 DemandedBits.cpp(16.27 KB)
📄 DependenceAnalysis.cpp(150.78 KB)
📄 DependenceGraphBuilder.cpp(19.24 KB)
📄 DivergenceAnalysis.cpp(15.59 KB)
📄 DomPrinter.cpp(9.67 KB)
📄 DomTreeUpdater.cpp(15.21 KB)
📄 DominanceFrontier.cpp(3.2 KB)
📄 EHPersonalities.cpp(5.89 KB)
📄 GlobalsModRef.cpp(41 KB)
📄 GuardUtils.cpp(3.27 KB)
📄 HeatUtils.cpp(2.85 KB)
📄 IVDescriptors.cpp(42.28 KB)
📄 IVUsers.cpp(16.12 KB)
📄 IndirectCallPromotionAnalysis.cpp(4.33 KB)
📄 InlineAdvisor.cpp(15.28 KB)
📄 InlineCost.cpp(99.47 KB)
📄 InlineFeaturesAnalysis.cpp(1.59 KB)
📄 InlineSizeEstimatorAnalysis.cpp(10.95 KB)
📄 InstCount.cpp(2.45 KB)
📄 InstructionPrecedenceTracking.cpp(4.8 KB)
📄 InstructionSimplify.cpp(216.91 KB)
📄 Interval.cpp(1.78 KB)
📄 IntervalPartition.cpp(4.5 KB)
📄 LazyBlockFrequencyInfo.cpp(2.81 KB)
📄 LazyBranchProbabilityInfo.cpp(2.96 KB)
📄 LazyCallGraph.cpp(67.33 KB)
📄 LazyValueInfo.cpp(76.38 KB)
📄 LegacyDivergenceAnalysis.cpp(14.82 KB)
📄 Lint.cpp(29.07 KB)
📄 Loads.cpp(20.6 KB)
📄 LoopAccessAnalysis.cpp(88.02 KB)
📄 LoopAnalysisManager.cpp(6.6 KB)
📄 LoopCacheAnalysis.cpp(23.53 KB)
📄 LoopInfo.cpp(37.15 KB)
📄 LoopNestAnalysis.cpp(10.62 KB)
📄 LoopPass.cpp(12.89 KB)
📄 LoopUnrollAnalyzer.cpp(7.26 KB)
📄 MLInlineAdvisor.cpp(11.36 KB)
📄 MemDepPrinter.cpp(5.13 KB)
📄 MemDerefPrinter.cpp(2.53 KB)
📄 MemoryBuiltins.cpp(41.14 KB)
📄 MemoryDependenceAnalysis.cpp(69.89 KB)
📄 MemoryLocation.cpp(7.92 KB)
📄 MemorySSA.cpp(90.16 KB)
📄 MemorySSAUpdater.cpp(57.9 KB)
📄 ModuleDebugInfoPrinter.cpp(4.02 KB)
📄 ModuleSummaryAnalysis.cpp(38.13 KB)
📄 MustExecute.cpp(31.18 KB)
📄 ObjCARCAliasAnalysis.cpp(5.81 KB)
📄 ObjCARCAnalysisUtils.cpp(1.07 KB)
📄 ObjCARCInstKind.cpp(23.15 KB)
📄 OptimizationRemarkEmitter.cpp(4.23 KB)
📄 PHITransAddr.cpp(16.05 KB)
📄 PhiValues.cpp(8.4 KB)
📄 PostDominators.cpp(3.59 KB)
📄 ProfileSummaryInfo.cpp(18.07 KB)
📄 PtrUseVisitor.cpp(1.28 KB)
📄 RegionInfo.cpp(6.5 KB)
📄 RegionPass.cpp(9.23 KB)
📄 RegionPrinter.cpp(8.61 KB)
📄 ReleaseModeModelRunner.cpp(2.83 KB)
📄 ScalarEvolution.cpp(475.26 KB)
📄 ScalarEvolutionAliasAnalysis.cpp(5.96 KB)
📄 ScalarEvolutionDivision.cpp(7.51 KB)
📄 ScalarEvolutionNormalization.cpp(4.59 KB)
📄 ScopedNoAliasAA.cpp(7.38 KB)
📄 StackLifetime.cpp(12.22 KB)
📄 StackSafetyAnalysis.cpp(31.81 KB)
📄 StratifiedSets.h(18.67 KB)
📄 SyncDependenceAnalysis.cpp(12.97 KB)
📄 SyntheticCountsUtils.cpp(3.81 KB)
📄 TFUtils.cpp(8.99 KB)
📄 TargetLibraryInfo.cpp(58.98 KB)
📄 TargetTransformInfo.cpp(48.15 KB)
📄 Trace.cpp(1.8 KB)
📄 TypeBasedAliasAnalysis.cpp(26.04 KB)
📄 TypeMetadataUtils.cpp(5.93 KB)
📄 VFABIDemangling.cpp(16.46 KB)
📄 ValueLattice.cpp(1.19 KB)
📄 ValueLatticeUtils.cpp(1.53 KB)
📄 ValueTracking.cpp(243.08 KB)
📄 VectorUtils.cpp(48.57 KB)
📁 models

Editing: EHPersonalities.cpp

//===- EHPersonalities.cpp - Compute EH-related information ---------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

#include "llvm/Analysis/EHPersonalities.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/IR/CFG.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/Instructions.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;

/// See if the given exception handling personality function is one that we
/// understand.  If so, return a description of it; otherwise return Unknown.
EHPersonality llvm::classifyEHPersonality(const Value *Pers) {
  const Function *F =
      Pers ? dyn_cast<Function>(Pers->stripPointerCasts()) : nullptr;
  if (!F)
    return EHPersonality::Unknown;
  return StringSwitch<EHPersonality>(F->getName())
    .Case("__gnat_eh_personality",     EHPersonality::GNU_Ada)
    .Case("__gxx_personality_v0",      EHPersonality::GNU_CXX)
    .Case("__gxx_personality_seh0",    EHPersonality::GNU_CXX)
    .Case("__gxx_personality_sj0",     EHPersonality::GNU_CXX_SjLj)
    .Case("__gcc_personality_v0",      EHPersonality::GNU_C)
    .Case("__gcc_personality_seh0",    EHPersonality::GNU_C)
    .Case("__gcc_personality_sj0",     EHPersonality::GNU_C_SjLj)
    .Case("__objc_personality_v0",     EHPersonality::GNU_ObjC)
    .Case("_except_handler3",          EHPersonality::MSVC_X86SEH)
    .Case("_except_handler4",          EHPersonality::MSVC_X86SEH)
    .Case("__C_specific_handler",      EHPersonality::MSVC_Win64SEH)
    .Case("__CxxFrameHandler3",        EHPersonality::MSVC_CXX)
    .Case("ProcessCLRException",       EHPersonality::CoreCLR)
    .Case("rust_eh_personality",       EHPersonality::Rust)
    .Case("__gxx_wasm_personality_v0", EHPersonality::Wasm_CXX)
    .Default(EHPersonality::Unknown);
}

StringRef llvm::getEHPersonalityName(EHPersonality Pers) {
  switch (Pers) {
  case EHPersonality::GNU_Ada:       return "__gnat_eh_personality";
  case EHPersonality::GNU_CXX:       return "__gxx_personality_v0";
  case EHPersonality::GNU_CXX_SjLj:  return "__gxx_personality_sj0";
  case EHPersonality::GNU_C:         return "__gcc_personality_v0";
  case EHPersonality::GNU_C_SjLj:    return "__gcc_personality_sj0";
  case EHPersonality::GNU_ObjC:      return "__objc_personality_v0";
  case EHPersonality::MSVC_X86SEH:   return "_except_handler3";
  case EHPersonality::MSVC_Win64SEH: return "__C_specific_handler";
  case EHPersonality::MSVC_CXX:      return "__CxxFrameHandler3";
  case EHPersonality::CoreCLR:       return "ProcessCLRException";
  case EHPersonality::Rust:          return "rust_eh_personality";
  case EHPersonality::Wasm_CXX:      return "__gxx_wasm_personality_v0";
  case EHPersonality::Unknown:       llvm_unreachable("Unknown EHPersonality!");
  }

llvm_unreachable("Invalid EHPersonality!");
}

EHPersonality llvm::getDefaultEHPersonality(const Triple &T) {
  return EHPersonality::GNU_C;
}

bool llvm::canSimplifyInvokeNoUnwind(const Function *F) {
  EHPersonality Personality = classifyEHPersonality(F->getPersonalityFn());
  // We can't simplify any invokes to nounwind functions if the personality
  // function wants to catch asynch exceptions.  The nounwind attribute only
  // implies that the function does not throw synchronous exceptions.
  return !isAsynchronousEHPersonality(Personality);
}

DenseMap<BasicBlock *, ColorVector> llvm::colorEHFunclets(Function &F) {
  SmallVector<std::pair<BasicBlock *, BasicBlock *>, 16> Worklist;
  BasicBlock *EntryBlock = &F.getEntryBlock();
  DenseMap<BasicBlock *, ColorVector> BlockColors;

// Build up the color map, which maps each block to its set of 'colors'.
  // For any block B the "colors" of B are the set of funclets F (possibly
  // including a root "funclet" representing the main function) such that
  // F will need to directly contain B or a copy of B (where the term "directly
  // contain" is used to distinguish from being "transitively contained" in
  // a nested funclet).
  //
  // Note: Despite not being a funclet in the truest sense, a catchswitch is
  // considered to belong to its own funclet for the purposes of coloring.

DEBUG_WITH_TYPE("winehprepare-coloring", dbgs() << "\nColoring funclets for "
                                                  << F.getName() << "\n");

Worklist.push_back({EntryBlock, EntryBlock});

while (!Worklist.empty()) {
    BasicBlock *Visiting;
    BasicBlock *Color;
    std::tie(Visiting, Color) = Worklist.pop_back_val();
    DEBUG_WITH_TYPE("winehprepare-coloring",
                    dbgs() << "Visiting " << Visiting->getName() << ", "
                           << Color->getName() << "\n");
    Instruction *VisitingHead = Visiting->getFirstNonPHI();
    if (VisitingHead->isEHPad()) {
      // Mark this funclet head as a member of itself.
      Color = Visiting;
    }
    // Note that this is a member of the given color.
    ColorVector &Colors = BlockColors[Visiting];
    if (!is_contained(Colors, Color))
      Colors.push_back(Color);
    else
      continue;

DEBUG_WITH_TYPE("winehprepare-coloring",
                    dbgs() << "  Assigned color \'" << Color->getName()
                           << "\' to block \'" << Visiting->getName()
                           << "\'.\n");

BasicBlock *SuccColor = Color;
    Instruction *Terminator = Visiting->getTerminator();
    if (auto *CatchRet = dyn_cast<CatchReturnInst>(Terminator)) {
      Value *ParentPad = CatchRet->getCatchSwitchParentPad();
      if (isa<ConstantTokenNone>(ParentPad))
        SuccColor = EntryBlock;
      else
        SuccColor = cast<Instruction>(ParentPad)->getParent();
    }

for (BasicBlock *Succ : successors(Visiting))
      Worklist.push_back({Succ, SuccColor});
  }
  return BlockColors;
}

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Editing: EHPersonalities.cpp

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