- 专利标题: Tracking stores and loads by bypassing load store units
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申请号: US16450897申请日: 2019-06-24
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公开(公告)号: US11048506B2公开(公告)日: 2021-06-29
- 发明人: Krishnan V. Ramani , Kai Troester , Frank C. Galloway , David N. Suggs , Michael D. Achenbach , Betty Ann McDaniel , Marius Evers
- 申请人: Advanced Micro Devices, Inc.
- 申请人地址: US CA Santa Clara
- 专利权人: Advanced Micro Devices, Inc.
- 当前专利权人: Advanced Micro Devices, Inc.
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Volpe Koenig
- 主分类号: G06F9/28
- IPC分类号: G06F9/28 ; G06F9/30 ; G06F9/38
摘要:
A system and method for tracking stores and loads to reduce load latency when forming the same memory address by bypassing a load store unit within an execution unit is disclosed. Store-load pairs which have a strong history of store-to-load forwarding are identified. Once identified, the load is memory renamed to the register stored by the store. The memory dependency predictor may also be used to detect loads that are dependent on a store but cannot be renamed. In such a configuration, the dependence is signaled to the load store unit and the load store unit uses the information to issue the load after the identified store has its physical address.
公开/授权文献
- US20190310845A1 TRACKING STORES AND LOADS BY BYPASSING LOAD STORE UNITS 公开/授权日:2019-10-10
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