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  1. SystemDS
  2. SYSTEMDS-2010

Generalized rewrite for merging sequence of statement blocks

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Details

    • Task
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • SystemML 1.0.0
    • None
    • None

    Description

      This task aims to generalize the existing rewrite for merging unconditional sequences of statement blocks. So far we avoid merging if either block has function calls in it. However, this is too conservative, as we good still merge blocks if written variables are not read in the subsequent block, leading to missed opportunities for common subexpression elimination.

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          is related to

          Task - A task that needs to be done. SYSTEMDS-2014 New optional sideffect parameter for external functions

          • Major - Major loss of function.
          • Closed
          relates to

          Sub-task - The sub-task of the issue SYSTEMDS-1828 New simplification rewrite for merging sequences blocks

          • Major - Major loss of function.
          • Closed

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              mboehm7 Matthias Boehm
              mboehm7 Matthias Boehm
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              Dates

                Created:
                Updated:
                Resolved: