Patent · US Active

Tagging target branch predictors with context with index modification and late stop fetch on tag mismatch

US10740104B2 · kind B2 · utility

0Cited by

23References

17Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Jentje Leenstra · Nagold, DE
Nicholas R. Orzol · Austin, US
Christian Zoellin · Waiblingen, DE
Michael J. Genden · Austin, US
Robert Alan Philhower · Valley Cottage, US

Key dates

Filing date	Aug 16, 2018
Grant date	Aug 11, 2020
Priority date	—
Expiry date	Aug 24, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/3861
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A processor-implemented method is provided. The processor-implemented includes reading, by a processor, an instruction stream by fetching instructions from an instruction cache of the processor. The processor then executes a branch prediction operation based on a context of the instruction stream and an index when one of the instructions includes a branch instruction. The branch prediction operation output a prediction and a context. The processor then compares the context of the instruction stream and the context from the branch prediction operation to determine whether to execute a stop fetch.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.