Invention Grant
- Patent Title: Systems and methods to predict load data values
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Application No.: US16023407Application Date: 2018-06-29
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Publication No.: US10761844B2Publication Date: 2020-09-01
- Inventor: Manjunath Shevgoor , Mark J. Dechene , Stanislav Shwartsman , Pavel I. Kryukov
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Nicholson De Vos Webster & Elliott LLP
- Main IPC: G06F9/30
- IPC: G06F9/30 ; G06F9/38 ; G06F12/1027

Abstract:
Disclosed embodiments relate to predicting load data. In one example, a processor a pipeline having stages ordered as fetch, decode, allocate, write back, and commit, a training table to store an address, predicted data, a state, and a count of instances of unchanged return data, and tracking circuitry to determine, during one or more of the allocate and decode stages, whether a training table entry has a first state and matches a fetched first load instruction, and, if so, using the data predicted by the entry during the execute stage, the tracking circuitry further to update the training table during or after the write back stage to set the state of the first load instruction in the training table to the first state when the count reaches a first threshold.
Public/Granted literature
- US20200004536A1 SYSTEMS AND METHODS TO PREDICT LOAD DATA VALUES Public/Granted day:2020-01-02
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