add comment explaining previous commit

 see 'XCore target -fexceptions flag handling'

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@201311 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 60992929b265caa24e56dedcf8c3286e1e8ab1c9..39bffe42e269db28339aca12f4a4fc98edc81952 100644 (file)
--- a/lib/Driver/Tools.cpp
+++ b/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;