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.:

US 10782945 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 22, 2020

Filed:

Apr. 04, 2019
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Andrew James Craik, North York, CA;

Vijay Sundaresan, North York, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 8/41 (2018.01);
U.S. Cl.
CPC ...
G06F 8/4434 (2013.01); G06F 8/443 (2013.01);
Abstract

An enhanced object allocation optimization selectively traverses an intermediate representation detecting on-stack replacement transitions, which when found are analyzed to determine whether a control flow-edge from a first block to a second block that is marked as an OSR resumption block exists. Responding to when the second block is marked, a pseudo call including arguments of all live local variables holding pointers to objects is inserted into the intermediate representation while optimization opportunities exist and executing a modified escape analysis on a modified intermediate representation examining each pseudo call as an escape point for all object references received by the pseudo call as arguments; ignoring uses of local variables dominated by these pseudo calls; and stack allocating objects to handle the non-local control flow due to on-stack replacement control flow using the pseudo call. Responsive to when no further optimization opportunities exist, removing respective inserted pseudo calls needing removal.


Find Patent Forward Citations

Craik, Andrew. (2020). Escape analysis supporting on-stack replacement (U.S. Patent No. 10782945). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10782945

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