Fix Clang-tidy modernize-use-nullptr warnings in source directories; other minor cleanups

Patch by Eugene Zelenko!

Differential Revision: http://reviews.llvm.org/D13406

llvm-svn: 249484

1 files changed, 2 insertions, 2 deletions

diff --git a/clang/lib/CodeGen/CodeGenPGO.cpp b/clang/lib/CodeGen/CodeGenPGO.cpp
index 8dffefc871f..a1d06cb80b1 100644
--- a/clang/lib/CodeGen/CodeGenPGO.cpp
+++ b/clang/lib/CodeGen/CodeGenPGO.cpp
@@ -604,7 +604,7 @@ struct ComputeRegionCounts : public ConstStmtVisitor<ComputeRegionCounts> {
     RecordNextStmtCount = true;
   }
 };
-}
+} // end anonymous namespace
 
 void PGOHash::combine(HashType Type) {
   // Check that we never combine 0 and only have six bits.
@@ -763,7 +763,7 @@ CodeGenPGO::applyFunctionAttributes(llvm::IndexedInstrProfReader *PGOReader,
     return;
 
   uint64_t MaxFunctionCount = PGOReader->getMaximumFunctionCount();
-  uint64_t FunctionCount = getRegionCount(0);
+  uint64_t FunctionCount = getRegionCount(nullptr);
   if (FunctionCount >= (uint64_t)(0.3 * (double)MaxFunctionCount))
     // Turn on InlineHint attribute for hot functions.
     // FIXME: 30% is from preliminary tuning on SPEC, it may not be optimal.