Title
An efficient representation for sparse sets
Abstract
Sets are a fundamental abstraction widely used in programming. Many representations are possible, each offering different advantages. We describe a representation that supports constant-time implementations of clear-set, add-member, and delete-member. Additionally, it supports an efficient forall iterator, allowing enumeration of all the members of a set in time proportional to the cardinality of the set.We present detailed comparisons of the costs of operations on our representation and on a bit vector representation. Additionally, we give experimental results showing the effectiveness of our representation in a practical application: construction of an interference graph for use during graph-coloring register allocation.While this representation was developed to solve a specific problem arising in register allocation, we have found it useful throughout our work, especially when implementing efficient analysis techniques for large programs. However, the new representation is not a panacea. The operations required for a particular set should be carefully considered before this representation, or any other representation, is chosen.
Year
DOI
Venue
1993
10.1145/176454.176484
LOPLAS
Keywords
Field
DocType
bit vector representation,efficient forall iterator,detailed comparison,efficient analysis technique,graph-coloring register allocation,compiler implementation,constant-time implementation,register allocation,sparse set,set representations,particular set,set operations,new representation,efficient representation,graph coloring
Register allocation,Computer science,Set operations,Enumeration,Cardinality,Implementation,Theoretical computer science,Bit array,Function representation,Iterator
Journal
Volume
Issue
Citations 
2
1-4
43
PageRank 
References 
Authors
2.79
8
2
Name
Order
Citations
PageRank
Preston Briggs137932.43
Linda Torczon21096146.31