CRPC-TR94406

Title:    A Generalized Expression Optimizaion Hook for C++ on
	  High-Performance Architectures

Authors:  David J. Edelsohn
	  Northeast Parallel Architectures Center
	  Syracuse University
	  Syracuse, NY 13244

Date:     February 1994


Of the authors listed above, please indicate which are:

  Minority authors:

  Female authors:

  Student authors: David J. Edelsohn


Keywords (list up to 8):

  C++, Object Oriented Languages, Operator Overloading, Aggregate Objects,
  Vector Chaining, Multiple Issue Instructions, Expression Optimization

Abstract:

  C++ has gained broad acceptance as an object-oriented evolutionary
  extension to the C language, but it severely constrains methods for
  operating on class objects by forcing all data manipulation through an
  interface which assumes that all basic operations can be implemented as
  they are written: as unary or binary operators.  C++ allows great
  flexibility in the creation of complex data structures which can perform
  the same functionality as built-in types of many other languages, but
  unfortunately it does not allow an equivalent level of flexibility so that
  operators acting on those data types can achieve the same level of
  efficiency as their counterparts in language-level implementations.  This
  limitation becomes even more pronounced on high-performance computers whose
  advanced features require considerable cooperation between the algorithm,
  the compiler, and the architecture for maximum performance.  This paper
  describes a language enhancement proposal: a special member function which
  interacts with overloaded operators as complete expressions.


Publication History:

  Submitted to:

  Published in:

	Scalable High Performance Computing Conference 1994, IEEE Press.