Put all LLVM code into the llvm namespace, as per bug 109.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/DAGBuilder.cpp b/lib/CodeGen/SelectionDAG/DAGBuilder.cpp
index a972ddf..fd4e7a9 100644
--- a/lib/CodeGen/SelectionDAG/DAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGBuilder.cpp
@@ -21,6 +21,8 @@
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Support/InstVisitor.h"
 
+namespace llvm {
+
 struct SelectionDAGBuilder : public InstVisitor<SelectionDAGBuilder> {
   // DAG - the current dag we are building.
   SelectionDAG &DAG;
@@ -270,3 +272,5 @@
     SDB.visitBB(const_cast<BasicBlock&>(*I));
   Root = SDB.CurRoot;
 }
+
+} // End llvm namespace