diff options
Diffstat (limited to 'src/cpu/o3/bpred_unit_impl.hh')
| -rw-r--r-- | src/cpu/o3/bpred_unit_impl.hh | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/src/cpu/o3/bpred_unit_impl.hh b/src/cpu/o3/bpred_unit_impl.hh index 0da02145b..8dad42011 100644 --- a/src/cpu/o3/bpred_unit_impl.hh +++ b/src/cpu/o3/bpred_unit_impl.hh @@ -159,7 +159,7 @@ BPredUnit<Impl>::predict(DynInstPtr &inst, Addr &PC, unsigned tid) void *bp_history = NULL; if (inst->isUncondCtrl()) { - DPRINTF(Fetch, "BranchPred: [tid:%i] Unconditional control.\n", tid); + DPRINTF(Fetch, "BranchPred: [tid:%i]: Unconditional control.\n", tid); pred_taken = true; // Tell the BP there was an unconditional branch. BPUncond(bp_history); @@ -201,15 +201,20 @@ BPredUnit<Impl>::predict(DynInstPtr &inst, Addr &PC, unsigned tid) ++BTBLookups; if (inst->isCall()) { - RAS[tid].push(PC + sizeof(MachInst)); +#if THE_ISA == ALPHA_ISA + Addr ras_pc = PC + sizeof(MachInst); // Next PC +#else + Addr ras_pc = PC + (2 * sizeof(MachInst)); // Next Next PC +#endif + RAS[tid].push(ras_pc); // Record that it was a call so that the top RAS entry can // be popped off if the speculation is incorrect. predict_record.wasCall = true; - DPRINTF(Fetch, "BranchPred: [tid:%i] Instruction %#x was a call" + DPRINTF(Fetch, "BranchPred: [tid:%i]: Instruction %#x was a call" ", adding %#x to the RAS.\n", - tid, inst->readPC(), PC + sizeof(MachInst)); + tid, inst->readPC(), ras_pc); } if (BTB.valid(PC, tid)) { @@ -242,7 +247,7 @@ BPredUnit<Impl>::predict(DynInstPtr &inst, Addr &PC, unsigned tid) predHist[tid].push_front(predict_record); - DPRINTF(Fetch, "[tid:%i] predHist.size(): %i\n", tid, predHist[tid].size()); + DPRINTF(Fetch, "[tid:%i]: predHist.size(): %i\n", tid, predHist[tid].size()); return pred_taken; } @@ -251,8 +256,8 @@ template <class Impl> void BPredUnit<Impl>::update(const InstSeqNum &done_sn, unsigned tid) { - DPRINTF(Fetch, "BranchPred: [tid:%i]: Commiting branches until sequence" - "number %lli.\n", tid, done_sn); + DPRINTF(Fetch, "BranchPred: [tid:%i]: Commiting branches until " + "[sn:%lli].\n", tid, done_sn); while (!predHist[tid].empty() && predHist[tid].back().seqNum <= done_sn) { |