MCTargetAsmParser target match predicate support.

Allow a target assembly parser to do context sensitive constraint checking
on a potential instruction match. This will be used, for example, to handle
Thumb2 IT block parsing.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137675 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/MBlaze/AsmParser/MBlazeAsmParser.cpp

@@ -323,6 +323,7 @@ MatchAndEmitInstruction(SMLoc IDLoc,
   unsigned ErrorInfo;
 
   switch (MatchInstructionImpl(Operands, Inst, ErrorInfo)) {
+  default: break;
   case Match_Success:
     Out.EmitInstruction(Inst);
     return false;