1 files changed, 12 insertions, 1 deletions
diff --git a/include/llvm/MC/MCParser/MCAsmParser.h b/include/llvm/MC/MCParser/MCAsmParser.h
index c840958fa91e..ac8706d99505 100644
--- a/include/llvm/MC/MCParser/MCAsmParser.h
+++ b/include/llvm/MC/MCParser/MCAsmParser.h
@@ -197,12 +197,23 @@ public:
   /// \brief Ensure that we have a valid section set in the streamer. Otherwise,
   /// report an error and switch to .text.
   virtual void checkForValidSection() = 0;
+
+  /// \brief Parse an arbitrary expression of a specified parenthesis depth,
+  /// assuming that the initial '(' characters have already been consumed.
+  ///
+  /// \param ParenDepth - Specifies how many trailing expressions outside the
+  /// current parentheses we have to parse.
+  /// \param Res - The value of the expression. The result is undefined
+  /// on error.
+  /// \return - False on success.
+  virtual bool parseParenExprOfDepth(unsigned ParenDepth, const MCExpr *&Res,
+                                     SMLoc &EndLoc) = 0;
 };
 
 /// \brief Create an MCAsmParser instance.
 MCAsmParser *createMCAsmParser(SourceMgr &, MCContext &, MCStreamer &,
                                const MCAsmInfo &);
 
-} // namespace llvm
+} // End llvm namespace
 
 #endif