Invention Grant
- Patent Title: Techniques for increasing vector processing utilization and efficiency through vector lane predication prediction
- Patent Title (中): 通过矢量车道预测预测提高矢量处理利用率和效率的技术
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Application No.: US14082652Application Date: 2013-11-18
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Publication No.: US09519479B2Publication Date: 2016-12-13
- Inventor: Hung Q. Le , Jose E. Moreira , Pratap C. Pattnaik , Brian W. Thompto , Jessica H. Tseng
- Applicant: GLOBALFOUNDRIES INC.
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES INC.
- Current Assignee: GLOBALFOUNDRIES INC.
- Current Assignee Address: KY Grand Cayman
- Agency: Roberts Mlotkowski Safran Cole & Calderon P.C.
- Agent Michael LeStrange; Andrew M. Calderon
- Main IPC: G06F9/30
- IPC: G06F9/30 ; G06F9/38

Abstract:
Techniques for increasing vector processing utilization and efficiency through use of unmasked lanes of predicated vector instructions for executing non-conflicting instructions are provided. In one aspect, a method of vector lane predication for a processor is provided which includes the steps of: fetching predicated vector instructions from a memory; decoding the predicated vector instructions; determining if a mask value of the predicated vector instructions is available and, if the mask value of the predicated vector instructions is not available, predicting the mask value of the predicated vector instructions; and dispatching the predicated vector instructions to only masked vector lanes.
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