Index: lib/Format/UnwrappedLineParser.h
===================================================================
--- lib/Format/UnwrappedLineParser.h
+++ lib/Format/UnwrappedLineParser.h
@@ -19,6 +19,7 @@
 #include "FormatToken.h"
 #include "clang/Basic/IdentifierTable.h"
 #include "clang/Format/Format.h"
+#include "llvm/ADT/Optional.h"
 #include "llvm/Support/Regex.h"
 #include <list>
 #include <stack>
@@ -123,9 +124,9 @@
   void tryToParseJSFunction();
   void addUnwrappedLine();
   bool eof() const;
-  void nextToken();
+  void nextToken(llvm::Optional<unsigned> InitialLevel = None);
   const FormatToken *getPreviousToken();
-  void readToken();
+  void readToken(llvm::Optional<unsigned> InitialLevel = None);
 
   // Decides which comment tokens should be added to the current line and which
   // should be added as comments before the next token.
Index: lib/Format/UnwrappedLineParser.cpp
===================================================================
--- lib/Format/UnwrappedLineParser.cpp
+++ lib/Format/UnwrappedLineParser.cpp
@@ -486,7 +486,7 @@
     return;
   }
 
-  nextToken(); // Munch the closing brace.
+  nextToken(InitialLevel); // Munch the closing brace.
 
   if (MacroBlock && FormatTok->is(tok::l_paren))
     parseParens();
@@ -2287,13 +2287,13 @@
   CommentsBeforeNextToken.clear();
 }
 
-void UnwrappedLineParser::nextToken() {
+void UnwrappedLineParser::nextToken(llvm::Optional<unsigned> InitialLevel) {
   if (eof())
     return;
   flushComments(isOnNewLine(*FormatTok));
   pushToken(FormatTok);
   if (Style.Language != FormatStyle::LK_JavaScript)
-    readToken();
+    readToken(InitialLevel);
   else
     readTokenWithJavaScriptASI();
 }
@@ -2362,7 +2362,7 @@
   }
 }
 
-void UnwrappedLineParser::readToken() {
+void UnwrappedLineParser::readToken(llvm::Optional<unsigned> InitialLevel) {
   SmallVector<FormatToken *, 1> Comments;
   do {
     FormatTok = Tokens->getNextToken();
@@ -2375,6 +2375,8 @@
       // directives only after that unwrapped line was finished later.
       bool SwitchToPreprocessorLines = !Line->Tokens.empty();
       ScopedLineState BlockState(*this, SwitchToPreprocessorLines);
+      if (InitialLevel)
+        Line->Level = *InitialLevel;
       // Comments stored before the preprocessor directive need to be output
       // before the preprocessor directive, at the same level as the
       // preprocessor directive, as we consider them to apply to the directive.
Index: unittests/Format/FormatTestComments.cpp
===================================================================
--- unittests/Format/FormatTestComments.cpp
+++ unittests/Format/FormatTestComments.cpp
@@ -836,6 +836,25 @@
                    "  int j;\n"
                    "}"));
 
+  EXPECT_EQ("int f(int i) {\n"
+            "  if (true) {\n"
+            "    ++i;\n"
+            "  }\n"
+            "  // comment\n"
+            "#ifdef A\n"
+            "  int j;\n"
+            "#endif\n"
+            "}",
+            format("int f(int i) {\n"
+                   "  if (true) {\n"
+                   "    ++i;\n"
+                   "  }\n"
+                   "  // comment\n"
+                   "#ifdef A\n"
+                   "  int j;\n"
+                   "#endif\n"
+                   "}"));
+
   // Keep the current level if there is an empty line between the comment and
   // the preprocessor directive.
   EXPECT_EQ("void f() {\n"
@@ -853,6 +872,46 @@
                    "  int j;\n"
                    "}"));
 
+  EXPECT_EQ("void f() {\n"
+            "  int i;\n"
+            "  return i;\n"
+            "}\n"
+            "// comment\n"
+            "\n"
+            "#ifdef A\n"
+            "int i;\n"
+            "#endif // A",
+            format("void f() {\n"
+                   "  int i;\n"
+                   "  return i;\n"
+                   "}\n"
+                   "// comment\n"
+                   "\n"
+                   "#ifdef A\n"
+                   "int i;\n"
+                   "#endif // A"));
+
+  EXPECT_EQ("int f(int i) {\n"
+            "  if (true) {\n"
+            "    ++i;\n"
+            "  }\n"
+            "  // comment\n"
+            "\n"
+            "#ifdef A\n"
+            "  int j;\n"
+            "#endif\n"
+            "}",
+            format("int f(int i) {\n"
+                   "  if (true) {\n"
+                   "    ++i;\n"
+                   "  }\n"
+                   "  // comment\n"
+                   "\n"
+                   "#ifdef A\n"
+                   "  int j;\n"
+                   "#endif\n"
+                   "}"));
+
   // Align with the preprocessor directive if the comment was originally aligned
   // with the preprocessor directive.
   EXPECT_EQ("void f() {\n"
@@ -867,6 +926,25 @@
                    "#ifdef A\n"
                    "  int j;\n"
                    "}"));
+
+  EXPECT_EQ("int f(int i) {\n"
+            "  if (true) {\n"
+            "    ++i;\n"
+            "  }\n"
+            "// comment\n"
+            "#ifdef A\n"
+            "  int j;\n"
+            "#endif\n"
+            "}",
+            format("int f(int i) {\n"
+                   "  if (true) {\n"
+                   "    ++i;\n"
+                   "  }\n"
+                   "// comment\n"
+                   "#ifdef A\n"
+                   "  int j;\n"
+                   "#endif\n"
+                   "}"));
 }
 
 TEST_F(FormatTestComments, SplitsLongLinesInComments) {