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:
Jan. 31, 1989
Filed:
Oct. 31, 1986
John Cocke, Austin, TX (US);
Peter W Markstein, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A procedure for use in an optimizing compiler termed 'reassociation' determines the preferred order of combining terms in a sum so as to produce loop invariant subcomputations, or to promote common subexpressions among several essential computations, by applying the associative law of addition. To achieve this, the requisite optimization of an object program or program segment, the following discrete steps must be performed after the strongly connected regions, USE and DEF chains have all been identified:
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