Compiler and computer capable of reducing noise in particular frequency band

摘要

There are provided in a compiler (2) a loop detecting part (6) that detects a loop portion from an intermediate code generated from a source program; a loop program formatting part (7) that generates a loop processing program for the loop portion when the loop detecting part (6) detects the loop portion; and, as a loop process changing part that changes the number of instruction steps required for performing the loop processing program generated by the loop program formatting part (7), a nop instruction adding part (11) that changes the loop processing program into a program to which n nop instructions are added.