ACTUALIZING METHOD FOR BUILT-IN FUNCTION

PROBLEM TO BE SOLVED: To reduce the dependency relation at each stage of a process and make the process efficient by putting built-in function calls together in one built-in function call which performs parallel processes, and executing built-in function processes in parallel as to more than one value by using a parallel processing mechanism. SOLUTION: When a built-in function call appears more than once in a source program, a method which generates an object of a compiler performs a process for converting the built-in function calls into one a built-in function call performing parallel processes for more than one value by a global optimization part 101. Further, a built-in function which performs parallel processes as to more than one argument is prepared as part of a built-in function library 102. Consequently, a built-in function process on a computer equipped with a parallel processing mechanism for superscalar or pipeline processing, etc., can efficiently be performed and consequently, a program which makes good use of them can be processed fast.