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:
Nov. 03, 2015
Filed:
Dec. 20, 2012
International Business Machines Corporation, Armonk, NY (US);
Qin Yue Chen, Shanghai, CN;
Qi Liang, Shanghai, CN;
Hong Chang Lin, Shanghai, CN;
Feng Liu, Shanghai, CN;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
A method for control flow analysis according to an embodiment of the present invention includes: acquiring an original function call tree of a program, wherein nodes of the original function call tree represent functions and a parent/child relation between the nodes represents a calling relation; generating a corresponding function dominator tree from the calling relation, wherein nodes of the function dominator tree represent the functions and a parent/child relation between the nodes represents a dominator relation, wherein a first function dominates a second function if all the invocations to the second function are originated by the first function; and simplifying the original function call tree according to the function dominator tree so as to obtain a simplified function call tree. According to an embodiment of the present invention, the function call tree for control flow analysis can be simplified.