OS << " memset(ISelQueued, 0, NumBytes);\n";
OS << " memset(ISelSelected, 0, NumBytes);\n";
OS << "\n";
- OS << " SDOperand ResNode;\n";
- OS << " Select(ResNode, Root);\n";
+ OS << " // Create a dummy node (which is not added to allnodes), that adds\n"
+ << " // a reference to the root node, preventing it from being deleted,\n"
+ << " // and tracking any changes of the root.\n"
+ << " HandleSDNode Dummy(CurDAG->getRoot());\n"
+ << " ISelQueue.push_back(CurDAG->getRoot().Val);\n";
OS << " while (!ISelQueue.empty()) {\n";
OS << " SDOperand Tmp;\n";
OS << " SDNode *Node = ISelQueue.front();\n";
OS << " ISelQueued = NULL;\n";
OS << " delete[] ISelSelected;\n";
OS << " ISelSelected = NULL;\n";
- OS << " return ResNode;\n";
+ OS << " return Dummy.getValue();\n";
OS << "}\n";
Intrinsics = LoadIntrinsics(Records);