3 files changed, 4 insertions, 4 deletions
diff --git a/clang/unittests/AST/ASTVectorTest.cpp b/clang/unittests/AST/ASTVectorTest.cpp
index a92e86b3cd8..ce6d0a07ce8 100644
--- a/clang/unittests/AST/ASTVectorTest.cpp
+++ b/clang/unittests/AST/ASTVectorTest.cpp
@@ -18,7 +18,7 @@
 using namespace clang;
 
 LLVM_ATTRIBUTE_UNUSED void CompileTest() {
-  ASTContext *C = 0;
+  ASTContext *C = nullptr;
   ASTVector<int> V;
   V.insert(*C, V.begin(), 0);
 }
diff --git a/clang/unittests/AST/CommentParser.cpp b/clang/unittests/AST/CommentParser.cpp
index 0064078d869..ae1410f377f 100644
--- a/clang/unittests/AST/CommentParser.cpp
+++ b/clang/unittests/AST/CommentParser.cpp
@@ -60,7 +60,7 @@ FullComment *CommentParserTest::parseString(const char *Source) {
 
   Lexer L(Allocator, Diags, Traits, Begin, Source, Source + strlen(Source));
 
-  Sema S(Allocator, SourceMgr, Diags, Traits, /*PP=*/ NULL);
+  Sema S(Allocator, SourceMgr, Diags, Traits, /*PP=*/ nullptr);
   Parser P(L, S, Allocator, SourceMgr, Diags, Traits);
   FullComment *FC = P.parseFullComment();
 
@@ -74,7 +74,7 @@ FullComment *CommentParserTest::parseString(const char *Source) {
   if (Tok.is(tok::eof))
     return FC;
   else
-    return NULL;
+    return nullptr;
 }
 
 ::testing::AssertionResult HasChildCount(const Comment *C, size_t Count) {
diff --git a/clang/unittests/AST/StmtPrinterTest.cpp b/clang/unittests/AST/StmtPrinterTest.cpp
index d7265176d12..0b334e768ff 100644
--- a/clang/unittests/AST/StmtPrinterTest.cpp
+++ b/clang/unittests/AST/StmtPrinterTest.cpp
@@ -33,7 +33,7 @@ namespace {
 
 void PrintStmt(raw_ostream &Out, const ASTContext *Context, const Stmt *S) {
   PrintingPolicy Policy = Context->getPrintingPolicy();
-  S->printPretty(Out, /*Helper*/ 0, Policy);
+  S->printPretty(Out, /*Helper*/ nullptr, Policy);
 }
 
 class PrintMatch : public MatchFinder::MatchCallback {