diff --git a/llvm/lib/Transforms/Scalar/NewGVN.cpp b/llvm/lib/Transforms/Scalar/NewGVN.cpp
index 80aa98d59d3c6..5a8f18a60da25 100644
--- a/llvm/lib/Transforms/Scalar/NewGVN.cpp
+++ b/llvm/lib/Transforms/Scalar/NewGVN.cpp
@@ -160,9 +160,6 @@ static cl::opt<bool> EnablePhiOfOps("enable-phi-of-ops", cl::init(true),
 //===----------------------------------------------------------------------===//
 
 // Anchor methods.
-namespace llvm {
-namespace GVNExpression {
-
 Expression::~Expression() = default;
 BasicExpression::~BasicExpression() = default;
 CallExpression::~CallExpression() = default;
@@ -171,9 +168,6 @@ StoreExpression::~StoreExpression() = default;
 AggregateValueExpression::~AggregateValueExpression() = default;
 PHIExpression::~PHIExpression() = default;
 
-} // end namespace GVNExpression
-} // end namespace llvm
-
 namespace {
 
 // Tarjan's SCC finding algorithm with Nuutila's improvements