Region-based compilation: an introduction and motivation

Richard E. Hank, Wen mei W. Hwu, B. Ramakrishna Rau

Research output: Contribution to journalConference articlepeer-review


As the amount of instruction-level parallelism required to fully utilize VLIW and superscalar processors increases, compilers must perform increasingly more aggressive analysis, optimization, parallelization and scheduling on the input programs. Traditionally, compilers have been built assuming functions as the unit of compilation. In this framework, function boundaries tend to hide valuable optimization opportunities from the compiler. Function inlining may be applied to assemble strongly coupled functions into the same compilation unit at the cost of very large function bodies. This paper introduces a new technique, called region-based compilation, where the compiler is allowed to repartition the program into more desirable compilation units. Region-based compilation allows the compiler to control problem size while exposing inter-procedural optimization and code motion opportunities.

Original languageEnglish (US)
Pages (from-to)158-168
Number of pages11
JournalProceedings of the Annual International Symposium on Microarchitecture
StatePublished - 1995
EventProceedings of the 1995 28th Annual International Symposium on Microarchitecture - Ann Arbor, MI, USA
Duration: Nov 29 1995Dec 1 1995

ASJC Scopus subject areas

  • Hardware and Architecture
  • Software


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