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
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index f6aea1f..e751e22 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -5424,6 +5424,23 @@
SD->setHasDebugValue(true);
}
+/// TransferDbgValues - Transfer SDDbgValues.
+void SelectionDAG::TransferDbgValues(SDValue From, SDValue To) {
+ if (From == To || !From.getNode()->getHasDebugValue())
+ return;
+ SDNode *FromNode = From.getNode();
+ SDNode *ToNode = To.getNode();
+ SmallVector<SDDbgValue*,2> &DVs = GetDbgValues(FromNode);
+ DbgInfo->removeSDDbgValues(FromNode);
+ for (SmallVector<SDDbgValue *, 2>::iterator I = DVs.begin(), E = DVs.end();
+ I != E; ++I) {
+ if ((*I)->getKind() == SDDbgValue::SDNODE) {
+ AddDbgValue(*I, ToNode, false);
+ (*I)->setSDNode(ToNode, To.getResNo());
+ }
+ }
+}
+
//===----------------------------------------------------------------------===//
// SDNode Class
//===----------------------------------------------------------------------===//