The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 2024
Filed:
Jun. 03, 2022
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Rami Mohammad Al Sheikh, Morrisville, NC (US);
Saransh Jain, Raleigh, NC (US);
Michael Scott McIlvaine, Raleigh, NC (US);
Daren Eugene Streett, Cary, NC (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Selectively updating branch predictors for loops executed from loop buffers is disclosed herein. In some aspects, a branch predictor update circuit of a processor is configured to detect a loop comprising a plurality of loop instructions in an instruction stream, and to determine that the loop is stored within a loop buffer circuit of the processor. The branch predictor update circuit is further configured to determine a count of potential history register updates to the history register for the plurality of loop instructions, and to determine whether the count of potential history register updates exceeds a size of the history register. The branch predictor update circuit is also configured to, responsive to determining that the count of potential history register updates does not exceed the size of the history register, update a branch predictor of the branch predictor circuit based on the plurality of loop instructions.