Terrence C. Miller

Effectiveness of a machine-level, global optimizer

We present an overview of the design of a machine-code-level, global (intraprocedural) optimizer that supports several front-ends producing code for the Hewlett-Packard Precision Architecture family of machines. The basic optimization strategy is described, including information about the division of responsibilities between various components of the compiler. Optimization algorithms are described, including a discussion of the dataflow information they require. Measurements showing the collective and individual effects of various optimizer components are presented. The performance data presented here was collected using a preliminary version of the optimizer. Development is continuing and further improvements are expected.

The unified programming environment: unobtrusive support

A key to significantly improving the productivity of programmers is the construction of a unified environment that collects and manages all information needed by the programmer and automates many of the programming tasks, both creative and mundane. Much early progress can now be made working only on the mundane tasks while pursuing AI research to develop the technology needed to automate more creative tasks.