add comment explaining previous commit

 see 'XCore target -fexceptions flag handling'

llvm-svn: 201311

diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 6099292..39bffe4 100644 (file)
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -1533,6 +1533,7 @@ namespace {
   };
 } // end anonymous namespace.
 
+// exceptionSettings() exists to share the logic between -cc1 and linker invocations.
 static ExceptionSettings exceptionSettings(const ArgList &Args,
                                            const llvm::Triple &Triple) {
   ExceptionSettings ES;