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[clang][dataflow] Extend debug output for Environment. #79982

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merged 1 commit into from
Jan 31, 2024
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[clang][dataflow] Extend debug output for Environment. #79982

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36 changes: 30 additions & 6 deletions clang/lib/Analysis/FlowSensitive/DataflowEnvironment.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1009,12 +1009,15 @@ bool Environment::allows(const Formula &F) const {
}

void Environment::dump(raw_ostream &OS) const {
// FIXME: add printing for remaining fields and allow caller to decide what
// fields are printed.
OS << "DeclToLoc:\n";
for (auto [D, L] : DeclToLoc)
OS << " [" << D->getNameAsString() << ", " << L << "]\n";
llvm::DenseMap<const StorageLocation *, std::string> LocToName;
if (ThisPointeeLoc != nullptr)
LocToName[ThisPointeeLoc] = "this";

OS << "DeclToLoc:\n";
for (auto [D, L] : DeclToLoc) {
auto Iter = LocToName.insert({L, D->getNameAsString()}).first;
OS << " [" << Iter->second << ", " << L << "]\n";
}
OS << "ExprToLoc:\n";
for (auto [E, L] : ExprToLoc)
OS << " [" << E << ", " << L << "]\n";
Expand All @@ -1025,7 +1028,28 @@ void Environment::dump(raw_ostream &OS) const {

OS << "LocToVal:\n";
for (auto [L, V] : LocToVal) {
OS << " [" << L << ", " << V << ": " << *V << "]\n";
OS << " [" << L;
if (auto Iter = LocToName.find(L); Iter != LocToName.end())
OS << " (" << Iter->second << ")";
OS << ", " << V << ": " << *V << "]\n";
}

if (const FunctionDecl *Func = getCurrentFunc()) {
if (Func->getReturnType()->isReferenceType()) {
OS << "ReturnLoc: " << ReturnLoc;
if (auto Iter = LocToName.find(ReturnLoc); Iter != LocToName.end())
OS << " (" << Iter->second << ")";
OS << "\n";
} else if (!Func->getReturnType()->isVoidType()) {
if (ReturnVal == nullptr)
OS << "ReturnVal: nullptr\n";
else
OS << "ReturnVal: " << *ReturnVal << "\n";
}

if (isa<CXXMethodDecl>(Func)) {
OS << "ThisPointeeLoc: " << ThisPointeeLoc << "\n";
}
}

OS << "\n";
Expand Down