Do not generate duplicate dbg_value instructions for function arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102585 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
index b07d70a..f52c0e0 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
@@ -502,7 +502,7 @@
   /// function argument, create the corresponding DBG_VALUE machine instruction
   /// for it now. At the end of instruction selection, they will be inserted to
   /// the entry BB.
-  void EmitFuncArgumentDbgValue(const DbgValueInst &DI,
+  bool EmitFuncArgumentDbgValue(const DbgValueInst &DI,
                                 const Value *V, MDNode *Variable,
                                 uint64_t Offset, SDValue &N);
 };