Data processing: software development – installation – and managem – Software program development tool – Translation of code
Reexamination Certificate
2007-10-02
2007-10-02
Dam, Tuan (Department: 2192)
Data processing: software development, installation, and managem
Software program development tool
Translation of code
C717S153000, C717S155000
Reexamination Certificate
active
10102389
ABSTRACT:
The present invention provides methods, apparatus, and systems to remove a redundant, sign extension instruction from a program and to improve the execution efficiency of the program. In an example embodiment, a conversion program for controlling a computer for the conversion of an execution program, especially a compiler, permits the computer to perform: a function for analyzing a sign extension instruction issued in order to perform the sign extension of a value defined in the execution program; and a function for, in accordance with analysis results, removing a predetermined sign extension instruction from those included in the execution program.
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Kawahito, et al., “A Method for Elimination of Redundant Sign Extensions”,Journal of Information Processing Society of Japan, Jan. 15, 2002, vol. 43, No. SIG1 (PRO13); pp. 60-74.
Kawahito Motohiro
Komatsu Kideaki
Dam Tuan
International Business Machines - Corporation
Scully , Scott, Murphy & Presser, P.C.
Yamonaco, Esq. Lisa M.
Yigdall Michael
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