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| author | Dibakar Gope <gope@wisc.edu> | 2015-04-13 17:33:57 -0500 |
|---|---|---|
| committer | Dibakar Gope <gope@wisc.edu> | 2015-04-13 17:33:57 -0500 |
| commit | 34ad1123ee5927e3b1503f07649620a533d3eab9 (patch) | |
| tree | e655941704abbbafad01966bfa188449a336aaef /src/cpu/pred/bpred_unit.hh | |
| parent | e596e524985cfb1f4d46aceebe69bb7fcd94cf04 (diff) | |
| download | gem5-34ad1123ee5927e3b1503f07649620a533d3eab9.tar.xz | |
cpu: re-organizes the branch predictor structure.
Committed by: Nilay Vaish <nilay@cs.wisc.edu>
Diffstat (limited to 'src/cpu/pred/bpred_unit.hh')
| -rw-r--r-- | src/cpu/pred/bpred_unit.hh | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/cpu/pred/bpred_unit.hh b/src/cpu/pred/bpred_unit.hh index 851cdbb78..f8b217567 100644 --- a/src/cpu/pred/bpred_unit.hh +++ b/src/cpu/pred/bpred_unit.hh @@ -97,7 +97,7 @@ class BPredUnit : public SimObject TheISA::PCState &predPC, ThreadID tid); // @todo: Rename this function. - virtual void uncondBranch(void * &bp_history) = 0; + virtual void uncondBranch(Addr pc, void * &bp_history) = 0; /** * Tells the branch predictor to commit any updates until the given @@ -260,7 +260,8 @@ class BPredUnit : public SimObject typedef std::deque<PredictorHistory> History; /** Number of the threads for which the branch history is maintained. */ - uint32_t numThreads; + const unsigned numThreads; + /** * The per-thread predictor history. This is used to update the predictor @@ -295,6 +296,9 @@ class BPredUnit : public SimObject Stats::Scalar RASIncorrect; protected: + /** Number of bits to shift instructions by for predictor addresses. */ + const unsigned instShiftAmt; + /** * @{ * @name PMU Probe points. |