Alternative implementations of two-level adaptive branch prediction
ISCA '92 Proceedings of the 19th annual international symposium on Computer architecture
Analysis of branch prediction via data compression
Proceedings of the seventh international conference on Architectural support for programming languages and operating systems
Assigning confidence to conditional branch predictions
Proceedings of the 29th annual ACM/IEEE international symposium on Microarchitecture
Confidence estimation for speculation control
Proceedings of the 25th annual international symposium on Computer architecture
Dynamic history-length fitting: a third level of adaptivity for branch prediction
Proceedings of the 25th annual international symposium on Computer architecture
Variable length path branch prediction
Proceedings of the eighth international conference on Architectural support for programming languages and operating systems
A scalable front-end architecture for fast instruction delivery
ISCA '99 Proceedings of the 26th annual international symposium on Computer architecture
The impact of delay on the design of branch predictors
Proceedings of the 33rd annual ACM/IEEE international symposium on Microarchitecture
Design tradeoffs for the Alpha EV8 conditional branch predictor
ISCA '02 Proceedings of the 29th annual international symposium on Computer architecture
Neural methods for dynamic branch prediction
ACM Transactions on Computer Systems (TOCS)
Checkpoint Processing and Recovery: Towards Scalable Large Instruction Window Processors
Proceedings of the 36th annual IEEE/ACM International Symposium on Microarchitecture
Prophet/Critic Hybrid Branch Prediction
Proceedings of the 31st annual international symposium on Computer architecture
Out-of-Order Commit Processors
HPCA '04 Proceedings of the 10th International Symposium on High Performance Computer Architecture
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The prophet/critic hybrid conditional branch predictor has two component predictors. The prophet uses a branch's history to predict its direction. We call this prediction and the ones for branches following it the branch future.The critic uses the branch's history and future to critique the prophet's prediction. The hybrid combines the prophet's prediction with the critique, either agree or disagree, forming the branch's overall prediction. Results show these hybrids can reduce mispredicts by 39 percent and improve processor performance by 7.8 percent.