Panasonic Corporation

Takehiro Yoshida

Takuji Kawamoto

Masaki Kawai

A complier, program product, compilation device, communication terminal device and compilation method that enables parts of a source program having a large number of executions, or parts having a high possibility of a large number of executions, to be extracted with good precision and compiled preferentially. A loop having a multi-nested structure or a single-nested structure is searched for in a main program, and another program that is being called from within this loop is detected. Additionally, a loop having a multi-nested structure or a single-nested structure is searched for in the callee program, and the total number of nests in the loops detected so far is calculated as the loop depth. In other words, the degree of multiplicity in all of the loops forming a multi-nested structure over programs having a calling relationship is calculated as the loop depth. The loop having the greatest loop depth is included in the parts to be compiled preferentially, and only the parts determined as parts to be compiled are compiled.

Compiler, program product, compilation device, communication terminal device, and compilation method

The speed of execution of linked programs is improved to the extent possible within the limit of the capacity of memory storing linked programs. As initial settings, all class libraries are set for linking. By this means, all class libraries are linked. Then, a judgment is made as to whether there is overflow of memory storing linked programs. If there is overflow, the maximum value of the number of applications using currently linked class libraries is set in variable N. Then, settings are modified such that class libraries used by N or more applications are not linked, and linking is again performed. If memory overflow does not occur, processing ends.

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Nagoya, Japan

Takehiro Yoshida