Re-enable 102565 with fixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102602 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 7c4ad6d..b8ebe8a 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -212,15 +212,12 @@
 
   SelectAllBasicBlocks(Fn);
 
-  FuncInfo->clear();
-
-  // If the first basic block in the function has live ins that need to be
+ // If the first basic block in the function has live ins that need to be
   // copied into vregs, emit the copies into the top of the block before
   // emitting the code for the block.
   MachineBasicBlock *EntryMBB = MF->begin();
   RegInfo->EmitLiveInCopies(EntryMBB, TRI, TII);
 
-#if 0
   // Insert DBG_VALUE instructions for function arguments to the entry block.
   for (unsigned i = 0, e = FuncInfo->ArgDbgValues.size(); i != e; ++i) {
     MachineInstr *MI = FuncInfo->ArgDbgValues[e-i-1];
@@ -237,7 +234,6 @@
   // Release function-specific state. SDB and CurDAG are already cleared
   // at this point.
   FuncInfo->clear();
-#endif
 
   return true;
 }