Invention Grant
- Patent Title: Apparatus and method with value prediction for load operation
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Application No.: US17670762Application Date: 2022-02-14
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Publication No.: US11948013B2Publication Date: 2024-04-02
- Inventor: Abhishek Raja
- Applicant: Arm Limited
- Applicant Address: GB Cambridge
- Assignee: Arm Limited
- Current Assignee: Arm Limited
- Current Assignee Address: GB Cambridge
- Agency: NIXON & VANDERHYE P.C.
- Main IPC: G06F9/38
- IPC: G06F9/38 ; G06F9/50 ; G06N5/02

Abstract:
An apparatus has processing circuitry, load tracking circuitry and load prediction circuitry to determine a prediction for a predicted load operation. It is determined whether the prediction is correct, and whether the tracking information indicates that, for a given younger load operation issued before it is known whether the prediction is correct, there is a risk of second target data associated with that given load operation having changed after having been loaded. Independent of whether the addresses of the predicted load operation and younger load operation correspond, at least the given load operation is re-processed when the prediction is correct and the tracking information indicates there is a risk of the second target data having changes after being loaded. This protects against ordering violations.
Public/Granted literature
- US20220300329A1 APPARATUS AND METHOD WITH VALUE PREDICTION FOR LOAD OPERATION Public/Granted day:2022-09-22
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