AssignNodeIds assign each node in the DAG an unique id.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29337 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 07b7c88..77904bf 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2698,6 +2698,18 @@
}
+/// AssignNodeIds - Assign a unique node id for each node in the DAG. It returns
+/// the maximum id.
+int SelectionDAG::AssignNodeIds() {
+ int Id = 0;
+ for (allnodes_iterator I = allnodes_begin(), E = allnodes_end(); I != E; ++I){
+ SDNode *N = I;
+ N->setNodeId(Id++);
+ }
+ return Id;
+}
+
+
//===----------------------------------------------------------------------===//
// SDNode Class
//===----------------------------------------------------------------------===//