Explain why this is here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63342 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp
index ace15e5180de86b9c0a25aa1060bf81b64e67cc2..773b06aa3946acd453f68f89ea8a1ea1b102c0cc 100644 (file)
--- a/utils/TableGen/DAGISelEmitter.cpp
+++ b/utils/TableGen/DAGISelEmitter.cpp
@@ -1060,6 +1060,7 @@ public:
       std::string Code = "Opc" + utostr(OpcNo);
 
       if (!isRoot || (InputHasChain && !NodeHasChain))
+        // For call to "getTargetNode()".
         Code += ", N.getDebugLoc()";
 
       emitOpcode(II.Namespace + "::" + II.TheDef->getName());