3 files changed, 5 insertions, 2 deletions
diff --git a/include/llvm/MC/MCParser/MCAsmLexer.h b/include/llvm/MC/MCParser/MCAsmLexer.h
index 606725a..47c580f 100644
--- a/include/llvm/MC/MCParser/MCAsmLexer.h
+++ b/include/llvm/MC/MCParser/MCAsmLexer.h
@@ -44,6 +44,7 @@ public:
     Colon,
     Plus, Minus, Tilde,
     Slash,    // '/'
+    BackSlash, // '\'
     LParen, RParen, LBrac, RBrac, LCurly, RCurly,
     Star, Dot, Comma, Dollar, Equal, EqualEqual,
 
diff --git a/include/llvm/MC/MCParser/MCAsmParser.h b/include/llvm/MC/MCParser/MCAsmParser.h
index 54979d9..7376693 100644
--- a/include/llvm/MC/MCParser/MCAsmParser.h
+++ b/include/llvm/MC/MCParser/MCAsmParser.h
@@ -71,7 +71,9 @@ public:
 
   /// Warning - Emit a warning at the location \arg L, with the message \arg
   /// Msg.
-  virtual void Warning(SMLoc L, const Twine &Msg) = 0;
+  ///
+  /// \return The return value is true, if warnings are fatal.
+  virtual bool Warning(SMLoc L, const Twine &Msg) = 0;
 
   /// Error - Emit an error at the location \arg L, with the message \arg
   /// Msg.
diff --git a/include/llvm/MC/MCParser/MCAsmParserExtension.h b/include/llvm/MC/MCParser/MCAsmParserExtension.h
index ceb57f5..4e2aee9 100644
--- a/include/llvm/MC/MCParser/MCAsmParserExtension.h
+++ b/include/llvm/MC/MCParser/MCAsmParserExtension.h
@@ -56,7 +56,7 @@ public:
   MCAsmParser &getParser() { return *Parser; }
   SourceMgr &getSourceManager() { return getParser().getSourceManager(); }
   MCStreamer &getStreamer() { return getParser().getStreamer(); }
-  void Warning(SMLoc L, const Twine &Msg) {
+  bool Warning(SMLoc L, const Twine &Msg) {
     return getParser().Warning(L, Msg);
   }
   bool Error(SMLoc L, const Twine &Msg) {