Data processing: software development – installation – and managem – Software program development tool – Translation of code
Reexamination Certificate
2005-06-30
2010-10-05
Bullock, Jr., Lewis A (Department: 2193)
Data processing: software development, installation, and managem
Software program development tool
Translation of code
C717S151000, C717S136000, C717S140000
Reexamination Certificate
active
07810086
ABSTRACT:
A compiler can perform aggressive code motion optimization by respecting value dependence of safety values inserted into the intermediate representation of a computer program. In one embodiment, the present invention includes converting a computer program into an intermediate representation, the intermediate representation containing at least one safety check ensuring the safety of at least one dangerous instruction. In one embodiment, the invention further includes defining a safety value in the intermediate representation as the safety check and including the safety value as a safety argument of the dangerous instruction. In one embodiment, it is determined that the safety check is redundant. In response, in one embodiment, the invention includes updating the safety argument of the dangerous instruction, and eliminating the safety check from the intermediate representation during the safety check elimination optimization. Other embodiments are described and claimed.
REFERENCES:
patent: 2004/0019770 (2004-01-01), Kawahito
patent: 2005/0257096 (2005-11-01), Kielstra
Suganuma et al., “Overview of the IBM Java Just-in-Time Compiler”, IBM Systems Journal, vol. 39, No. 1, 2000.
Bellia et al (Higher Order Programming through Java Reflection, Concurrency Specification and Programming 2004, vol. 3, pp. 447-459, 2004).
Adl-Tabataba Ali-Reza
Menon Vijay S.
Murphy Brian R.
Petersen Leaf
Shpeisman Tatiana
Blakely , Sokoloff, Taylor & Zafman LLP
Bullock, Jr. Lewis A
Intel Corporation
Pan Hang
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