发明名称 |
APPARATUS AND METHOD FOR EFFICIENT REGISTER ALLOCATION AND RECLAMATION |
摘要 |
A method and apparatus are described for efficient register reclamation. For example, one embodiment of an apparatus comprises: single usage detection and tagging logic to examine a sequence of instructions to detect logical registers used by the sequence of instructions that have a single use and to tag an instruction as a single usage instruction if the instruction is a consumer of a logical register that has a single use; an allocator to allocate processor resources to execute the sequence of instructions, the processor resources including physical registers mapped to logical registers to execute the sequence of instructions; and register reclamation logic to free up a logical to physical mapping of a single use register in response to detecting the tag provided by the instruction tagging logic. |
申请公布号 |
US2016266901(A1) |
申请公布日期 |
2016.09.15 |
申请号 |
US201514643855 |
申请日期 |
2015.03.10 |
申请人 |
WINKEL SEBASTIAN;VENKATASUBRAMANIAN GIRISH;SONDAG TYLER N.;KASSA ROLF |
发明人 |
WINKEL SEBASTIAN;VENKATASUBRAMANIAN GIRISH;SONDAG TYLER N.;KASSA ROLF |
分类号 |
G06F9/30 |
主分类号 |
G06F9/30 |
代理机构 |
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代理人 |
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主权项 |
1. An apparatus comprising:
single usage detection and tagging logic to examine a sequence of instructions to detect logical registers used by the sequence of instructions that have no more than a single use and to tag an instruction as a single usage instruction if the instruction is a consumer of a logical register that has no more than a single use; an allocator to allocate processor resources to execute the sequence of instructions, the processor resources including physical registers mapped to logical registers to execute the sequence of instructions; and register reclamation logic to free up a logical to physical mapping of a single use register in response to detecting the tag provided by the instruction tagging logic. |
地址 |
Los Altos CA US |