Abstract: Code includes a loop including update processing for updating elements of an array, indicated by a first index, and reference processing for referencing elements of the array, indicated by a second index. At least one of the first index and the second index depends on a parameter whose value is determined at runtime. A processor calculates, based on the value of the parameter determined at runtime, a first range of the elements to be updated by the update processing and a second range of the elements to be referenced by the reference processing prior to the execution of the loop. Then, the processor compares the first range with the second range and outputs a warning indicating that the loop is not parallelizable when the first range and the second range overlap in part.

Abstract: A compiler device and a computer-readable recording medium recorded with a compiler program, adapted to generate a code for performing a procedure call in a program, making use of a dynamically and thread-piece-wise allocated interface area when a plurality of threads are processed in parallel.