X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTableGen%2FError.cpp;h=8d9ae20dd52eda1a6dc0b0c24a1f0b870553f0b5;hb=fd0a8133e56e6c48d04e395290da69c3926a48d1;hp=0bb86b0686a0cd25265beb494930bac0126edbf2;hpb=61131ab15fd593a2e295d79fe2714e7bc21f2ec8;p=oota-llvm.git

diff --git a/lib/TableGen/Error.cpp b/lib/TableGen/Error.cpp
index 0bb86b0686a..8d9ae20dd52 100644
--- a/lib/TableGen/Error.cpp
+++ b/lib/TableGen/Error.cpp
@@ -15,15 +15,20 @@
 #include "llvm/TableGen/Error.h"
 #include "llvm/ADT/Twine.h"
 #include "llvm/Support/raw_ostream.h"
-
 #include <cstdlib>
 
 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;
@@ -57,12 +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);
 }