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:
Jun. 06, 2000
Filed:
Jun. 18, 1996
Bjarne Steensgaard, North Bend, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A pointer analysis by type inference combined with a non-pointer analysis helps approximate run-time store usage for a computer program. The analysis initially describes the content of each location for the program with a separate type as a non-pointer value. The analysis identifies store relationships described by the program and determines whether the location(s) and/or function(s) affected by the identified store relationships are well-typed under typing constraints. For well-typed store relationships, the analysis identifies any potential points-to relationships for types representing non-pointer values in case the analysis subsequently determines in processing other store relationships that the types may represent a pointer value. If the identified store relationships are not well-typed, the analysis modifies types for location(s) and/or function(s) affected by the identified store relationships as necessary so the store relationships are well-typed. The analysis also modifies types for locations and/or functions for potential points-to relationships affected by the modification of types When the locations and/or functions for all identified store relationships are well-typed, the program is well-typed with the set of types defining a store model for the program.