MC/AsmParser: Push the burdon of emitting diagnostics about unmatched

instructions onto the target specific parser, which can do a better job.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110889 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 1 deletions

diff --git a/include/llvm/Target/TargetAsmParser.h b/include/llvm/Target/TargetAsmParser.h
index 4d37ad3d75..5830d1f99f 100644
--- a/include/llvm/Target/TargetAsmParser.h
+++ b/include/llvm/Target/TargetAsmParser.h
@@ -73,8 +73,12 @@ public:
   /// MatchInstruction - Recognize a series of operands of a parsed instruction
   /// as an actual MCInst.  This returns false and fills in Inst on success and
   /// returns true on failure to match.
+  ///
+  /// On failure, the target parser is responsible for emitting a diagnostic
+  /// explaining the match failure.
   virtual bool 
-  MatchInstruction(const SmallVectorImpl<MCParsedAsmOperand*> &Operands,
+  MatchInstruction(SMLoc IDLoc,
+                   const SmallVectorImpl<MCParsedAsmOperand*> &Operands,
                    MCInst &Inst) = 0;
   
 };