[Preprocessor] Only check for -Wunused-macros if the translation unit kind is TU_Comp...

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@203360 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Lex/PPLexerChange.cpp b/lib/Lex/PPLexerChange.cpp
index 80f863dcdaa49f87b3b21bca42dda63d7438ac37..949cd632620e09152a7245db48db3f9701f63f72 100644 (file)
--- a/lib/Lex/PPLexerChange.cpp
+++ b/lib/Lex/PPLexerChange.cpp
@@ -427,7 +427,7 @@ bool Preprocessor::HandleEndOfFile(Token &Result, bool isEndOfMacro) {
   if (!isIncrementalProcessingEnabled())
     CurPPLexer = 0;
 
-  if (TUKind != TU_Prefix) {
+  if (TUKind == TU_Complete) {
     // This is the end of the top-level file. 'WarnUnusedMacroLocs' has
     // collected all macro locations that we need to warn because they are not
     // used.