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From "Matthias Boehm (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SYSTEMML-1982) IPA marks functions incorrectly for recompile_once
Date Thu, 02 Nov 2017 04:31:00 GMT
Matthias Boehm created SYSTEMML-1982:
----------------------------------------

             Summary: IPA marks functions incorrectly for recompile_once
                 Key: SYSTEMML-1982
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1982
             Project: SystemML
          Issue Type: Bug
            Reporter: Matthias Boehm
            Priority: Major


The IPA pass for function recompile, marks any function with loops for recompile once, even
in cases where not a single statement block is marked for recompilation. Here is an example:
{code}
---FUNCTION .defaultNS::foo [recompile=true]
------GENERIC (lines 24-24) [recompile=false]
--------CP assignvar input.SCALAR.INT.false out.SCALAR.INT
------FOR (lines 0-0)
--------CP assignvar 1.SCALAR.INT.true __pred.SCALAR.INT
--------CP assignvar 2.SCALAR.INT.true __pred.SCALAR.INT
--------CP assignvar 1.SCALAR.INT.true __pred.SCALAR.INT
--------GENERIC (lines 26-27) [recompile=false]
----------CP uak+ X.MATRIX.DOUBLE _Var57.SCALAR.DOUBLE 8
----------CP castvti _Var57.SCALAR.DOUBLE.false _Var58.SCALAR.INT
----------CP rmvar _Var57
----------CP + input.SCALAR.INT.false _Var58.SCALAR.INT.false _Var59.SCALAR.INT
----------CP rmvar _Var58
----------CP mvvar _Var59 out
{code}



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