While replacing all uses of a SDValue with another value, do not forget to transfer SDDbgValue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131907 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index dd33205..7e4c12b 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -5150,6 +5150,9 @@
"Cannot replace with this method!");
assert(From != To.getNode() && "Cannot replace uses of with self");
+ // Transfer debug values.
+ TransferDbgValues(FromN, To);
+
// Iterate over all the existing uses of From. New uses will be added
// to the beginning of the use list, which we avoid visiting.
// This specifically avoids visiting uses of From that arise while the