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.

Date of Patent:
Mar. 12, 2024

Filed:

Sep. 26, 2020
Applicant:

Intel Corporation, Santa Clara, CA (US);

Inventors:

Gilles Pokam, Livermore, CA (US);

Jared Warner Stark, IV, Portland, OR (US);

Niranjan Kumar Soundararajan, Bengaluru, IN;

Oleg Ladin, Kaliningrad, RU;

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/30 (2018.01); G06F 9/38 (2018.01); G06F 12/0875 (2016.01);
U.S. Cl.
CPC ...
G06F 9/3806 (2013.01); G06F 9/3802 (2013.01); G06F 9/3814 (2013.01); G06F 9/382 (2013.01); G06F 9/383 (2013.01); G06F 9/3844 (2013.01); G06F 12/0875 (2013.01); G06F 9/30145 (2013.01); G06F 2212/452 (2013.01);
Abstract

Methods and apparatus relating to branch prefetch mechanisms for mitigating front-end branch resteers are described. In an embodiment, predecodes an entry in a cache to generate a predecoded branch operation. The entry is associated with a cold branch operation, where the cold branch operation corresponds to an operation that is detected for a first time after storage in an instruction cache and wherein the cold branch operation remains undecoded since it is stored at a location in a cache line prior to a subsequent location of a branch operation in the cache line. The predecoded branch operation is stored in a Branch Prefetch Buffer (BPB) in response to a cache line fill operation of the cold branch operation in an instruction cache. Other embodiments are also disclosed and claimed.


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