Assign the ordering of SDNodes in a much less intrusive fashion. After the

"visit*" method is called, take the newly created nodes, walk them in a DFS
fashion, and if they don't have an ordering set, then give it one.

llvm-svn: 94757

1 files changed, 5 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
index db656e35a4a..bc4b33dff12 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
@@ -342,6 +342,11 @@ public:
 
   void CopyValueToVirtualRegister(Value *V, unsigned Reg);
 
+  /// AssignOrderingToNode - Assign an ordering to the node. The order is gotten
+  /// from how the code appeared in the source. The ordering is used by the
+  /// scheduler to effectively turn off scheduling.
+  void AssignOrderingToNode(const SDNode *Node);
+
   void visit(Instruction &I);
 
   void visit(unsigned Opcode, User &I);