Method and apparatus for precision optimization in compiled...

Details Method and apparatus for precision optimization in compiled... Method and apparatus for precision optimization in compiled...

2006-11-28

2006-11-28

Chavis, John (Department: 2193)

Data processing: software development, installation, and managem

Software program development tool

Translation of code

Reexamination Certificate

active

07143402

ABSTRACT:
A compiler mounted on a computer generates a first object code of a target method in a double precision mode in the floating-point computation. If the target method is found to be frequently called in a single precision mode and a runtime cost may be reduced by executing the target method in the single precision mode, a second object code of the target method is generated in the single precision mode. Alternatively, regardless of whether a target method to be compiled will be called by the double precision mode or the single precision mode in the floating-point computation, the object code is generated by setting the precision mode depending on the type of the computation within the target method. Then, a code for matching the precision mode is generated and added based on a relation between the target code and its caller method.

REFERENCES:
patent: 5587897 (1996-12-01), Iida
Michael Paleczny, Christopher Vick and Cliff Click, “The Java® HotSpot Server Compiler”, The USENIX Association: Proceedings of the Java® Virtual Machine Research and Technology Symposium (JVM '01).

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