Invention Grant
- Patent Title: Small branch predictor escape
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Application No.: US17092668Application Date: 2020-11-09
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Publication No.: US11614944B2Publication Date: 2023-03-28
- Inventor: Thomas C. McDonald
- Applicant: CENTAUR TECHNOLOGY, INC.
- Applicant Address: US TX Austin
- Assignee: CENTAUR TECHNOLOGY, INC.
- Current Assignee: CENTAUR TECHNOLOGY, INC.
- Current Assignee Address: US TX Austin
- Agency: McClure, Qualey & Rodack, LLP
- Main IPC: G06F9/38
- IPC: G06F9/38

Abstract:
In one embodiment, a branch prediction control system is configured to move a mispredicted conditional branch from a smaller cache side that uses the lower complexity conditional branch predictor to one of the two large cache sides that uses the higher complexity conditional branch predictors. The move (write) is achieved according to a configurable probability or chance to escape misprediction recurrence and results in a reduced amount of mispredictions for the given branch instruction.
Public/Granted literature
- US20220147360A1 SMALL BRANCH PREDICTOR ESCAPE Public/Granted day:2022-05-12
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