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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94757 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
index db656e3..bc4b33d 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
@@ -342,6 +342,11 @@
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);