Hide the call to InitMCInstrInfo into tblgen generated ctor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134244 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PTX/PTXInstrInfo.cpp b/lib/Target/PTX/PTXInstrInfo.cpp
index 1bbd8d5..7f0fa8b 100644
--- a/lib/Target/PTX/PTXInstrInfo.cpp
+++ b/lib/Target/PTX/PTXInstrInfo.cpp
@@ -21,13 +21,14 @@
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
 
+#define GET_INSTRINFO_CTOR
 #define GET_INSTRINFO_MC_DESC
 #include "PTXGenInstrInfo.inc"
 
 using namespace llvm;
 
 PTXInstrInfo::PTXInstrInfo(PTXTargetMachine &_TM)
-  : TargetInstrInfoImpl(PTXInsts, array_lengthof(PTXInsts)),
+  : PTXGenInstrInfo(),
     RI(_TM, *this), TM(_TM) {}
 
 static const struct map_entry {