Invention Grant
- Patent Title: Stack access tracking
- Patent Title (中): 堆栈访问跟踪
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Application No.: US13922296Application Date: 2013-06-20
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Publication No.: US09292292B2Publication Date: 2016-03-22
- Inventor: Kai Troester , Luke Yen
- Applicant: Advanced Micro Devices, Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US CA Sunnyvale
- Main IPC: G06F12/06
- IPC: G06F12/06 ; G06F9/38

Abstract:
A processor employs a prediction table at a front end of its instruction pipeline, whereby the prediction table stores address register and offset information for store instructions; and stack offset information for stack access instructions. The stack offset information for a corresponding instruction indicates the entry of the stack accessed by the instruction stack relative to a base entry. The processor uses pattern matching to identify predicted dependencies between load/store instructions and predicted dependencies between stack access instructions. A scheduler unit of the instruction pipeline uses the predicted dependencies to perform store-to-load forwarding or other operations that increase efficiency and reduce power consumption at the processing system.
Public/Granted literature
- US20140379986A1 STACK ACCESS TRACKING Public/Granted day:2014-12-25
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