Global constant pool to allow deletion of constant pool entries

Details Global constant pool to allow deletion of constant pool entries Global constant pool to allow deletion of constant pool entries

2007-07-03

2007-07-03

Zhen, Wei (Department: 2191)

Data processing: software development, installation, and managem

Software program development tool

Translation of code

C717S166000, C717S151000

Reexamination Certificate

active

10203123

ABSTRACT:
A method and apparatus for reducing runtime memory requirements of a virtual machine. The invention involves analyzing object code compiled from source code. The object code includes at least two load-units that each contain a load-unit specific constant pool. Each load-unit is analyzed to determine which constants are actual constants and then those actual constants are analyzed to determine where commonality exists among the load-units. If a constant is determined to be redundant it is rewritten to a global constant pool. The references to the constant in the load-unit specific constant pool are rewritten to point to the value in the global constant pool. The memory allocated to the constant in the individual load-unit is then reallocated, either by a programmed routine or by memory management tools.

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