X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTableGen%2FError.cpp;h=8d9ae20dd52eda1a6dc0b0c24a1f0b870553f0b5;hb=184c0f8b2f6dfcca8137b019190fef52a3ff10e2;hp=ec84a72454f65a90a23e74ceea79b920c76d87f6;hpb=d04a8d4b33ff316ca4cf961e06c9e312eff8e64f;p=oota-llvm.git

diff --git a/lib/TableGen/Error.cpp b/lib/TableGen/Error.cpp
index ec84a72454f..8d9ae20dd52 100644
--- a/lib/TableGen/Error.cpp
+++ b/lib/TableGen/Error.cpp
@@ -20,9 +20,15 @@
 namespace llvm {
 
 SourceMgr SrcMgr;
+unsigned ErrorsPrinted = 0;
 
 static void PrintMessage(ArrayRef<SMLoc> Loc, SourceMgr::DiagKind Kind,
                          const Twine &Msg) {
+  // Count the total number of errors printed.
+  // This is used to exit with an error code if there were any errors.
+  if (Kind == SourceMgr::DK_Error)
+    ++ErrorsPrinted;
+
   SMLoc NullLoc;
   if (Loc.empty())
     Loc = NullLoc;
@@ -56,12 +62,12 @@ void PrintError(const Twine &Msg) {
   errs() << "error:" << Msg << "\n";
 }
 
-void PrintFatalError(const std::string &Msg) {
-  PrintError(Twine(Msg));
+void PrintFatalError(const Twine &Msg) {
+  PrintError(Msg);
   std::exit(1);
 }
 
-void PrintFatalError(ArrayRef<SMLoc> ErrorLoc, const std::string &Msg) {
+void PrintFatalError(ArrayRef<SMLoc> ErrorLoc, const Twine &Msg) {
   PrintError(ErrorLoc, Msg);
   std::exit(1);
 }