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Canadian application, no grantCanada

Optimizing compilation of pointer variables

CA 2200812 A1 · Owner: Archambault, Roch George · Inventors: Archambault, Roch Georges

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Effective use of optimizing techniques during compilation is difficult in programs that make liberal use of pointers or indirect function calls. The indirection often means that the compiler cannot precisely determine the set of objects pointed to by a pointer at a specific location in the program and, therefore cannot efficiently eliminate pointer redundancies in the code. The present invention provides an optimising method that reduces the size of alias sets associated with program pointers. During an initial compilation phase intraprocedural information about pointer variables referenced in each function of the program is gathered and saved in a data structure called the pointer alias …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed March 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 24, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 24, 1997
GrantedNo grant recorded
Term endedMarch 24, 2017
Patent numberCA 2200812 A1
Classification (IPC)G06F9/45

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMarch 24, 1997Term endedMarch 24, 2017

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.