Don't cache the instruction and register info from the TargetMachine, because
the internals of TargetMachine could change.

No functionality change intended.

llvm-svn: 183494
diff --git a/llvm/lib/Target/PowerPC/PPCHazardRecognizers.h b/llvm/lib/Target/PowerPC/PPCHazardRecognizers.h
index 55b45d0..84b8e6d 100644
--- a/llvm/lib/Target/PowerPC/PPCHazardRecognizers.h
+++ b/llvm/lib/Target/PowerPC/PPCHazardRecognizers.h
@@ -43,7 +43,7 @@
 /// setting the CTR register then branching through it within a dispatch group),
 /// or storing then loading from the same address within a dispatch group.
 class PPCHazardRecognizer970 : public ScheduleHazardRecognizer {
-  const TargetInstrInfo &TII;
+  const TargetMachine &TM;
 
   unsigned NumIssued;  // Number of insts issued, including advanced cycles.
 
@@ -64,7 +64,7 @@
   unsigned NumStores;
 
 public:
-  PPCHazardRecognizer970(const TargetInstrInfo &TII);
+  PPCHazardRecognizer970(const TargetMachine &TM);
   virtual HazardType getHazardType(SUnit *SU, int Stalls);
   virtual void EmitInstruction(SUnit *SU);
   virtual void AdvanceCycle();