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Open64

Open64

Open64 is an open source, optimizing compiler for the Itanium and x86-64 microprocessor architectures.

The Open64 compiler suite includes optimizing compilers and runtime support for C, C++ and FORTRAN 77/90/95. These compilers produce code that follows the corresponding ABI on IA-32/Linux, x86_64/Linux and IA-64/Linux and be compatible with the latest GCC revision. This means that objects produced by the Open64 compilers can link with objects produced by other ABI compliant compilers.

Open64 is used in a number of research projects, such as the Unified Parallel C (UPC) and speculative multithreading work at various universities.

 Open64 5.0

Price
Free to download

Size
64.5MB
License

GNU GPL v2

Developer
PathScale, Inc., Silicon Graphics, Inc., Institute of Computing Technology, Chinese Academy of Sciences, QLogic Corporation

Website
www.open64.net

System Requirements

Support:
Documentation, FAQ, Wiki, Mailing List, Newsletter, SourceForge Project Page

Selected Reviews:

Features include:

  • C compatible with gcc, with gcc extensions
  • C++ compatible g++, with g++ extensions
  • FORTRAN 77/90/95 support
  • Platform-independent optimizations:
    • Code Motion
    • Constant propagation
    • Dead code elimination
    • Expression simplification
    • Common subexpression elimination
    • Strength reduction
    • Partial redundency elimination
    • Loop optimizations, enabled at '-O3'
    • Interprocedural analysis and optimization, enabled with '-ipa'
  • Platform-dependent optimizations:
    • Software pipelining on IA-64
    • Control and Data speculation on IA-64
    • Integrated instruction scheduling with resource management
  • OpenMP support in C/C++/Fortran
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Last Updated Tuesday, June 03 2014 @ 03:43 PM EDT


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