Small branch predictor escape
US11614944B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Nov 9, 2020 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Nov 9, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3848
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.