================
@@ -10,21 +10,76 @@
namespace clang::lifetimes::internal {
-void PathLoan::dump(llvm::raw_ostream &OS) const {
- OS << getID() << " (Path: ";
- if (const clang::ValueDecl *VD = Path.getAsValueDecl())
+void AccessPath::dump(llvm::raw_ostream &OS) const {
+ if (const clang::ValueDecl *VD = getAsValueDecl())
OS << VD->getNameAsString();
else if (const clang::MaterializeTemporaryExpr *MTE =
- Path.getAsMaterializeTemporaryExpr())
- // No nice "name" for the temporary, so deferring to LLVM default
+ getAsMaterializeTemporaryExpr())
OS << "MaterializeTemporaryExpr at " << MTE;
- else
- llvm_unreachable("access path is not one of any supported types");
+ else if (const PlaceholderBase *PB = getAsPlaceholderBase()) {
+ if (const auto *PVD = PB->getParmVarDecl())
+ OS << "$" << PVD->getNameAsString();
+ else if (PB->getMethodDecl())
+ OS << "$this";
+ } else
+ llvm_unreachable("access path base invalid");
+ for (const auto &E : Elements)
+ E.dump(OS);
+}
+
+void Loan::dump(llvm::raw_ostream &OS) const {
+ OS << getID() << " (Path: ";
+ Path.dump(OS);
OS << ")";
}
-void PlaceholderLoan::dump(llvm::raw_ostream &OS) const {
- OS << getID() << " (Placeholder loan)";
+const PlaceholderBase *
+LoanManager::getOrCreatePlaceholderBase(const ParmVarDecl *PVD) {
+ llvm::FoldingSetNodeID ID;
+ ID.AddPointer(PVD);
+ void *InsertPos = nullptr;
+ if (PlaceholderBase *Existing =
+ PlaceholderBases.FindNodeOrInsertPos(ID, InsertPos))
+ return Existing;
+
+ void *Mem = LoanAllocator.Allocate<PlaceholderBase>();
+ PlaceholderBase *NewPB = new (Mem) PlaceholderBase(PVD);
+ PlaceholderBases.InsertNode(NewPB, InsertPos);
+ return NewPB;
}
+const PlaceholderBase *
+LoanManager::getOrCreatePlaceholderBase(const CXXMethodDecl *MD) {
+ llvm::FoldingSetNodeID ID;
+ ID.AddPointer(MD);
+ void *InsertPos = nullptr;
+ if (PlaceholderBase *Existing =
+ PlaceholderBases.FindNodeOrInsertPos(ID, InsertPos))
+ return Existing;
+
+ void *Mem = LoanAllocator.Allocate<PlaceholderBase>();
+ PlaceholderBase *NewPB = new (Mem) PlaceholderBase(MD);
+ PlaceholderBases.InsertNode(NewPB, InsertPos);
+ return NewPB;
+}
+
+Loan *LoanManager::getOrCreateExtendedLoan(LoanID BaseLoanID,
+ PathElement Element) {
+
+ ExtensionCacheKey Key = {BaseLoanID, Element};
+ auto It = ExtensionCache.find(Key);
----------------
Xazax-hun wrote:
Some lookups might be saved by using `try_emplace` style APIs?
https://github.com/llvm/llvm-project/pull/180369
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