diff --git a/llvm/include/llvm/Support/X86FoldTablesUtils.h b/llvm/include/llvm/Support/X86FoldTablesUtils.h
--- a/llvm/include/llvm/Support/X86FoldTablesUtils.h
+++ b/llvm/include/llvm/Support/X86FoldTablesUtils.h
@@ -9,7 +9,7 @@
 #ifndef LLVM_SUPPORT_X86FOLDTABLESUTILS_H
 #define LLVM_SUPPORT_X86FOLDTABLESUTILS_H
 
-namespace {
+namespace llvm {
 enum {
   // Select which memory operand is being unfolded.
   // (stored in bits 0 - 2)
@@ -55,5 +55,5 @@
 
   // Unused bits 14-15
 };
-}
-#endif // LLVM_SUPPORT_X86FOLDTABLESUTILS_H
\ No newline at end of file
+} // namespace llvm
+#endif // LLVM_SUPPORT_X86FOLDTABLESUTILS_H