clang-tidy: Add llvm namespace comments

llvm commonly adds a comment to the closing brace of a namespace to indicate
which namespace is closed. clang-tidy provides with llvm-namespace-comment
a handy tool to check for this habit. We use it to ensure we consitently use
namespace comments in Polly.

There are slightly different styles in how namespaces are closed in LLVM. As
there is no large difference between the different comment styles we go for the
style clang-tidy suggests by default.

To reproduce this fix run:

for i in `ls tools/polly/lib/*/*.cpp`; \
  clang-tidy -checks='-*,llvm-namespace-comment' -p build $i -fix \
  -header-filter=".*"; \
done

This cleanup was suggested by Eugene Zelenko <eugene.zelenko@gmail.com> in
http://reviews.llvm.org/D21488 and was split out to increase readability.

llvm-svn: 273621

1 files changed, 2 insertions, 2 deletions

diff --git a/polly/lib/Support/SCEVValidator.cpp b/polly/lib/Support/SCEVValidator.cpp
index 4b8516338e6..6b70ff72ee8 100644
--- a/polly/lib/Support/SCEVValidator.cpp
+++ b/polly/lib/Support/SCEVValidator.cpp
@@ -32,7 +32,7 @@ enum TYPE {
   // An invalid expression.
   INVALID
 };
-}
+} // namespace SCEVType
 
 /// @brief The result the validator returns for a SCEV expression.
 class ValidatorResult {
@@ -635,4 +635,4 @@ extractConstantFactor(const SCEV *S, ScalarEvolution &SE) {
 
   return std::make_pair(ConstPart, LeftOver);
 }
-}
+} // namespace polly