Update clang to r339409.

Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2
diff --git a/linux-x64/clang/include/llvm/Analysis/BlockFrequencyInfo.h b/linux-x64/clang/include/llvm/Analysis/BlockFrequencyInfo.h
index 89370cb..ca12db6 100644
--- a/linux-x64/clang/include/llvm/Analysis/BlockFrequencyInfo.h
+++ b/linux-x64/clang/include/llvm/Analysis/BlockFrequencyInfo.h
@@ -65,17 +65,17 @@
   /// floating points.
   BlockFrequency getBlockFreq(const BasicBlock *BB) const;
 
-  /// \brief Returns the estimated profile count of \p BB.
+  /// Returns the estimated profile count of \p BB.
   /// This computes the relative block frequency of \p BB and multiplies it by
   /// the enclosing function's count (if available) and returns the value.
   Optional<uint64_t> getBlockProfileCount(const BasicBlock *BB) const;
 
-  /// \brief Returns the estimated profile count of \p Freq.
+  /// Returns the estimated profile count of \p Freq.
   /// This uses the frequency \p Freq and multiplies it by
   /// the enclosing function's count (if available) and returns the value.
   Optional<uint64_t> getProfileCountFromFreq(uint64_t Freq) const;
 
-  /// \brief Returns true if \p BB is an irreducible loop header
+  /// Returns true if \p BB is an irreducible loop header
   /// block. Otherwise false.
   bool isIrrLoopHeader(const BasicBlock *BB);
 
@@ -105,7 +105,7 @@
   void print(raw_ostream &OS) const;
 };
 
-/// \brief Analysis pass which computes \c BlockFrequencyInfo.
+/// Analysis pass which computes \c BlockFrequencyInfo.
 class BlockFrequencyAnalysis
     : public AnalysisInfoMixin<BlockFrequencyAnalysis> {
   friend AnalysisInfoMixin<BlockFrequencyAnalysis>;
@@ -113,14 +113,14 @@
   static AnalysisKey Key;
 
 public:
-  /// \brief Provide the result type for this analysis pass.
+  /// Provide the result type for this analysis pass.
   using Result = BlockFrequencyInfo;
 
-  /// \brief Run the analysis pass over a function and produce BFI.
+  /// Run the analysis pass over a function and produce BFI.
   Result run(Function &F, FunctionAnalysisManager &AM);
 };
 
-/// \brief Printer pass for the \c BlockFrequencyInfo results.
+/// Printer pass for the \c BlockFrequencyInfo results.
 class BlockFrequencyPrinterPass
     : public PassInfoMixin<BlockFrequencyPrinterPass> {
   raw_ostream &OS;
@@ -131,7 +131,7 @@
   PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
 };
 
-/// \brief Legacy analysis pass which computes \c BlockFrequencyInfo.
+/// Legacy analysis pass which computes \c BlockFrequencyInfo.
 class BlockFrequencyInfoWrapperPass : public FunctionPass {
   BlockFrequencyInfo BFI;