From 1a0bbe25e32ef03119c743eb1da50d280640041f Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Tue, 27 Apr 2010 20:54:45 +0000
Subject: Ignore DBG_VALUE instructions that points to undef values.

llvm-svn: 102463
---
 llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 5 -----
 1 file changed, 5 deletions(-)

(limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 9d239c1bd7c..d663521abaf 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -3834,15 +3834,10 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
         return 0;
       DAG.AddDbgValue(SDV, N.getNode(), isParameter);
     } else {
-      // Generating Undefs here seems to be actively harmful because it
-      // affects the line numbers.
-      return 0;
-#if 0
       // This isn't useful, but it shows what we're missing.
       SDV = DAG.getDbgValue(Variable, UndefValue::get(Address->getType()),
                             0, dl, SDNodeOrder);
       DAG.AddDbgValue(SDV, 0, isParameter);
-#endif
     }
     return 0;
   }
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