inorder: update branch predictor

- use InOrderBPred instead of Resource for DPRINTFs
- account for DELAY SLOT in updating RAS and in squashing
- don't let squashed instructions update the predictor
- the BTB needs to use the ASID not the TID to work for multithreaded programs
- add stats for BTB hits

1 files changed, 2 insertions, 0 deletions

diff --git a/src/cpu/inorder/resources/bpred_unit.hh b/src/cpu/inorder/resources/bpred_unit.hh
index 72229ca70..b17200fd2 100644
--- a/src/cpu/inorder/resources/bpred_unit.hh
+++ b/src/cpu/inorder/resources/bpred_unit.hh
@@ -219,6 +219,7 @@ class BPredUnit
     };
 
     typedef std::list<PredictorHistory> History;
+    typedef History::iterator HistoryIt;
 
     /**
      * The per-thread predictor history. This is used to update the predictor
@@ -255,6 +256,7 @@ class BPredUnit
     Stats::Scalar usedRAS;
     /** Stat for number of times the RAS is incorrect. */
     Stats::Scalar RASIncorrect;
+    Stats::Formula BTBHitPct;
 };
 
 #endif // __CPU_INORDER_BPRED_UNIT_HH__