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:
Aug. 28, 2001
Filed:
Dec. 01, 1998
Applicant:
Inventor:
Takayoshi Iitsuka, Sagamihara, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 9/45 ;
U.S. Cl.
CPC ...
G06F 9/45 ;
Abstract
A method for analyzing an array summary to improve the accuracy of an array summary analysis of a loop containing a loop exit statement, thereby to improve applicability of array privatization. If a loop exit statement and a statement that sets the value of a loop control variable at loop exit to a scalar variable are contained within a loop, the upper bound of the loop control variable of the loop is replaced by the scalar variable in the array summary of the loop body and the result of eliminating the loop control variable by a variable elimination method is defined as the array summary of the loop, whereby the array summary is computed without approximation.