NDLI: Scope conserving expression evaluation:a class of storage optimal evaluation strategies for arithmetic expressions

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Scope conserving expression evaluation:a class of storage optimal evaluation strategies for arithmetic expressions

Content Provider	ACM Digital Library
Author	Chroust, G.
Abstract	One important aspect of the object code generated for arithmetic expressions in higher level languages is the amount of temporary storage needed during evaluation. This amount is a function of the sequence in which an expression's subexpression are evaluated. Usually the implementor has the freedom to choose any order of evaluation, provided that operations are executed after the evaluation of their respective operands. This allows for the use of a multitude of possible evaluation sequences. In 1971 the author identified a large class of such evaluation strategies by the newly coined term 'scope conserving'.In this paper we show that this class of strategies will minimize the amount of temporary storage with respect to a very general cost function. The optimizing sequencing strategies for temporary storage derived by Anderson, Colin, Nakata, Redziejowski, Sethi-Ullmann and Chroust are shown to be expressible in the model.
Starting Page	68
Ending Page	72
Page Count	5
File Format	PDF
ISSN	03621340 15581160
DOI	10.1145/954618.954622
Journal	ACM SIGPLAN Notices (SIGP)
Volume Number	12
Issue Number	12
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1983-05-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Software

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