split the giant encoder loop into two new helper functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119129 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/CodeEmitterGen.h

@@ -23,6 +23,7 @@ namespace llvm {
 
 class RecordVal;
 class BitsInit;
+class CodeGenTarget;
 
 class CodeEmitterGen : public TableGenBackend {
   RecordKeeper &Records;
@@ -36,6 +37,12 @@ private:
   void emitGetValueBit(raw_ostream &o, const std::string &Namespace);
   void reverseBits(std::vector<Record*> &Insts);
   int getVariableBit(const std::string &VarName, BitsInit *BI, int bit);
+  std::string getInstructionCase(Record *R, CodeGenTarget &Target);
+  void
+  AddCodeToMergeInOperand(Record *R, BitsInit *BI, const std::string &VarName,
+                          unsigned &NumberedOp,
+                          std::string &Case, CodeGenTarget &Target);
+    
 };
 
 } // End llvm namespace