In our paper of Supercomputing '88, an overview of V-Pascal, an automatic vectorizing compiler for Pascal, was presented with focus on its Version 1. In that paper, as one of those higher functions to be added to Version 2 V-Pascal, vector-mode execution of nonnummeric operations such as relational database operations and nonnumeric data manipulations was considered. This paper describes the actual results we have obtained. These results are important in that a new vista has been opened up for vector supercomputers which are originally designed solely for high-speed manipulations of scientific numerical data.

A detailed anatomy of the automatic vectorizing compiler V-Pascal (Version 1, now operational) is given. With no language extensions, V-Pascal efficiently vectorizes the whole of arbitrarily given multiply nested for loops using the mechanism of vector indirect addressing. Higher functions of V-Pascal, such as vectorization of WHILE-DO and recursive calls, vectorization of relational operations on relational databases defined by record-type data structures, and automatic parallel decomposition for multiprocessor environments, are considered for Version 2, which is currently in the process of design and implementation.>