- // Otherwise this block has not been seen before.
- BB = new BasicBlock("", CurFun.CurrentFunction);
- if (ID.Type == ValID::NameVal) {
- BB->setName(ID.Name);
+ ID.destroy(); // Free strdup'd memory
+ return BB;
+}
+
+/// getBBVal - get an existing BB value or create a forward reference for it.
+///
+static BasicBlock *getBBVal(const ValID &ID) {
+ assert(inFunctionScope() && "Can't get basic block at global scope!");
+
+ BasicBlock *BB = 0;
+
+ std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
+ if (BBI != CurFun.BBForwardRefs.end()) {
+ BB = BBI->second;
+ } if (ID.Type == ValID::LocalName) {
+ std::string Name = ID.getName();
+ Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name);
+ if (N)
+ if (N->getType()->getTypeID() == Type::LabelTyID)
+ BB = cast<BasicBlock>(N);
+ else
+ GenerateError("Reference to label '" + Name + "' is actually of type '"+
+ N->getType()->getDescription() + "'");
+ } else if (ID.Type == ValID::LocalID) {
+ if (ID.Num < CurFun.NextValNum && ID.Num < CurFun.Values.size()) {
+ if (CurFun.Values[ID.Num]->getType()->getTypeID() == Type::LabelTyID)
+ BB = cast<BasicBlock>(CurFun.Values[ID.Num]);
+ else
+ GenerateError("Reference to label '%" + utostr(ID.Num) +
+ "' is actually of type '"+
+ CurFun.Values[ID.Num]->getType()->getDescription() + "'");
+ }