Move code into anonymous namespaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145154 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/IndVarSimplify.cpp b/lib/Transforms/Scalar/IndVarSimplify.cpp
index 1f21108..1f5ba51 100644
--- a/lib/Transforms/Scalar/IndVarSimplify.cpp
+++ b/lib/Transforms/Scalar/IndVarSimplify.cpp
@@ -58,18 +58,16 @@
 STATISTIC(NumElimExt     , "Number of IV sign/zero extends eliminated");
 STATISTIC(NumElimIV      , "Number of congruent IVs eliminated");
 
-namespace llvm {
-  cl::opt<bool> EnableIVRewrite(
-    "enable-iv-rewrite", cl::Hidden,
-    cl::desc("Enable canonical induction variable rewriting"));
+static cl::opt<bool> EnableIVRewrite(
+  "enable-iv-rewrite", cl::Hidden,
+  cl::desc("Enable canonical induction variable rewriting"));
 
-  // Trip count verification can be enabled by default under NDEBUG if we
-  // implement a strong expression equivalence checker in SCEV. Until then, we
-  // use the verify-indvars flag, which may assert in some cases.
-  cl::opt<bool> VerifyIndvars(
-    "verify-indvars", cl::Hidden,
-    cl::desc("Verify the ScalarEvolution result after running indvars"));
-}
+// Trip count verification can be enabled by default under NDEBUG if we
+// implement a strong expression equivalence checker in SCEV. Until then, we
+// use the verify-indvars flag, which may assert in some cases.
+static cl::opt<bool> VerifyIndvars(
+  "verify-indvars", cl::Hidden,
+  cl::desc("Verify the ScalarEvolution result after running indvars"));
 
 namespace {
   class IndVarSimplify : public LoopPass {