remove some old hacky code that tried to infer whether a store 
occured in a pattern, but failed miserably.  The new code works for
any instruction that has a store in its pattern, including all the 
x86 mem op mem instructions.

The only target-independent code that uses this is branch folding,
so this won't change anything in practice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45648 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/InstrInfoEmitter.h b/utils/TableGen/InstrInfoEmitter.h
index b721adc..a223f24 100644
--- a/utils/TableGen/InstrInfoEmitter.h
+++ b/utils/TableGen/InstrInfoEmitter.h
@@ -29,7 +29,7 @@
 
 class InstrInfoEmitter : public TableGenBackend {
   RecordKeeper &Records;
-  CodeGenDAGPatterns CDP;
+  const CodeGenDAGPatterns CDP;
   std::map<std::string, unsigned> ItinClassMap;
   
 public: