Index Vector Elimination - Making Index Vectors Affordable

نویسندگان

  • Robert Bernecky
  • Stephan Herhut
  • Sven-Bodo Scholz
  • Kai Trojahner
  • Clemens Grelck
  • Alexander V. Shafarenko
چکیده

Compiling indexing operations on n-dimensional arrays into efficiently executable code is a challenging task. This paper focuses on the reduction of offset computations as they typically occur when transforming index vectors into offsets for linearized representations of ndimensional arrays. We present a high-level optimization to that effect which is generally applicable, even in the presence of statically unknown rank (n). Our experiments show run-time improvements between a factor of 2 and 16 on a set of real-world benchmarks.

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تاریخ انتشار 2006