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author | Korey Sewell <ksewell@umich.edu> | 2011-06-19 21:43:37 -0400 |
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committer | Korey Sewell <ksewell@umich.edu> | 2011-06-19 21:43:37 -0400 |
commit | 89d0f95bf02489ab8fed382af2f104c4788b8db6 (patch) | |
tree | e0ae62c3c28b5c902bcf5320b81393486335c5d7 /src/cpu/inorder/cpu.cc | |
parent | 479195d4cf5d52138a1dc3cf1e5ffe588c6e924f (diff) | |
download | gem5-89d0f95bf02489ab8fed382af2f104c4788b8db6.tar.xz |
inorder: branch predictor update
only update BTB on a taken branch and update branch predictor w/pcstate from instruction
---
only pay attention to branch predictor updates if the the inst. is in fact a branch
Diffstat (limited to 'src/cpu/inorder/cpu.cc')
-rw-r--r-- | src/cpu/inorder/cpu.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/cpu/inorder/cpu.cc b/src/cpu/inorder/cpu.cc index 03c44ea86..75e9e06d9 100644 --- a/src/cpu/inorder/cpu.cc +++ b/src/cpu/inorder/cpu.cc @@ -506,6 +506,9 @@ InOrderCPU::createBackEndSked(DynInstPtr inst) W.needs(RegManager, UseDefUnit::WriteDestReg, idx); } + if (inst->isControl()) + W.needs(BPred, BranchPredictor::UpdatePredictor); + // Insert Back Schedule into our cache of // resource schedules addToSkedCache(inst, res_sked); |