Provide an interface to transfer SDDbgValue from one SDNode to another.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124245 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/CodeGen/SelectionDAG/SDNodeDbgValue.h b/lib/CodeGen/SelectionDAG/SDNodeDbgValue.h
index 2dcb229573..e5cd23a6c9 100644
--- a/lib/CodeGen/SelectionDAG/SDNodeDbgValue.h
+++ b/lib/CodeGen/SelectionDAG/SDNodeDbgValue.h
@@ -83,6 +83,14 @@ public:
   // Returns the SDNode* for a register ref
   SDNode *getSDNode() { assert (kind==SDNODE); return u.s.Node; }
 
+  // setSDNode - If underlying SDNode is replaced by another node then
+  // SelectionDAG can use this to transfer DbgValue.
+  void setSDNode(SDNode *N, unsigned R) { 
+    assert (kind==SDNODE); 
+    u.s.Node = N; 
+    u.s.ResNo = R;
+  }
+
   // Returns the ResNo for a register ref
   unsigned getResNo() { assert (kind==SDNODE); return u.s.ResNo; }