[llvm-mca] Move namespace mca inside llvm::

Summary: This allows to remove `using namespace llvm;` in those *.cpp files

When we want to revisit the decision (everything resides in llvm::mca::*) in the future, we can move things to a nested namespace of llvm::mca::, to conceptually make them separate from the rest of llvm::mca::*

Reviewers: andreadb, mattd

Reviewed By: andreadb

Subscribers: javed.absar, tschuett, gbedwell, llvm-commits

Differential Revision: https://reviews.llvm.org/D53407

llvm-svn: 345612

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/tools/llvm-mca/Views/SummaryView.cpp b/llvm/tools/llvm-mca/Views/SummaryView.cpp
index 2007746b81f..fdf27600c93 100644
--- a/llvm/tools/llvm-mca/Views/SummaryView.cpp
+++ b/llvm/tools/llvm-mca/Views/SummaryView.cpp
@@ -18,12 +18,11 @@
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Support/Format.h"
 
+namespace llvm {
 namespace mca {
 
 #define DEBUG_TYPE "llvm-mca"
 
-using namespace llvm;
-
 SummaryView::SummaryView(const MCSchedModel &Model, ArrayRef<MCInst> S,
                          unsigned Width)
     : SM(Model), Source(S), DispatchWidth(Width), LastInstructionIdx(0),
@@ -88,3 +87,4 @@ void SummaryView::printView(raw_ostream &OS) const {
   OS << Buffer;
 }
 } // namespace mca.
+} // namespace llvm