Add z9 and z10 target processors. Mark z10-only instructions as such.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75977 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/SystemZ/SystemZSubtarget.h b/lib/Target/SystemZ/SystemZSubtarget.h
index 6c51695..41a3741 100644
--- a/lib/Target/SystemZ/SystemZSubtarget.h
+++ b/lib/Target/SystemZ/SystemZSubtarget.h
@@ -23,17 +23,20 @@
 class TargetMachine;
 
 class SystemZSubtarget : public TargetSubtarget {
-  bool DummyFeature;
+  bool HasZ10Insts;
 public:
   /// This constructor initializes the data members to match that
   /// of the specified module.
   ///
   SystemZSubtarget(const TargetMachine &TM, const Module &M,
-                  const std::string &FS);
+                   const std::string &FS);
 
   /// ParseSubtargetFeatures - Parses features string setting specified
   /// subtarget options.  Definition of function is auto generated by tblgen.
-  std::string ParseSubtargetFeatures(const std::string &FS, const std::string &CPU);
+  std::string ParseSubtargetFeatures(const std::string &FS,
+                                     const std::string &CPU);
+
+  bool isZ10() const { return HasZ10Insts; }
 };
 } // End llvm namespace