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https://issues.apache.org/jira/browse/SYSTEMML-1852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm resolved SYSTEMML-1852.
--------------------------------------
Resolution: Fixed
Assignee: Matthias Boehm
Fix Version/s: SystemML 1.0
> IPA fails w/ issue of simplification rewrite
> --------------------------------------------
>
> Key: SYSTEMML-1852
> URL: https://issues.apache.org/jira/browse/SYSTEMML-1852
> Project: SystemML
> Issue Type: Bug
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
> Fix For: SystemML 1.0
>
>
> After the recent IPA and compiler changes (e.g., merge of statement blocks),
> we encountered the following rewrite issue:
> {code}
> Caused by: org.apache.sysml.hops.HopsException: Failed to retrieve 'to'
> argument from basic 1-N sequence.
> at
> org.apache.sysml.hops.rewrite.HopRewriteUtils.getBasic1NSequenceMaxLiteral(HopRewriteUtils.java:1005)
> at
> org.apache.sysml.hops.rewrite.RewriteAlgebraicSimplificationStatic.simplifyOuterSeqExpand(RewriteAlgebraicSimplificationStatic.java:1644)
> at
> org.apache.sysml.hops.rewrite.RewriteAlgebraicSimplificationStatic.rule_AlgebraicSimplification(RewriteAlgebraicSimplificationStatic.java:173)
> at
> org.apache.sysml.hops.rewrite.RewriteAlgebraicSimplificationStatic.rule_AlgebraicSimplification(RewriteAlgebraicSimplificationStatic.java:178)
> at
> org.apache.sysml.hops.rewrite.RewriteAlgebraicSimplificationStatic.rule_AlgebraicSimplification(RewriteAlgebraicSimplificationStatic.java:178)
> at
> org.apache.sysml.hops.rewrite.RewriteAlgebraicSimplificationStatic.rule_AlgebraicSimplification(RewriteAlgebraicSimplificationStatic.java:178)
> at
> org.apache.sysml.hops.rewrite.RewriteAlgebraicSimplificationStatic.rule_AlgebraicSimplification(RewriteAlgebraicSimplificationStatic.java:178)
> at
> org.apache.sysml.hops.rewrite.RewriteAlgebraicSimplificationStatic.rule_AlgebraicSimplification(RewriteAlgebraicSimplificationStatic.java:178)
> at
> org.apache.sysml.hops.rewrite.RewriteAlgebraicSimplificationStatic.rule_AlgebraicSimplification(RewriteAlgebraicSimplificationStatic.java:178)
> at
> org.apache.sysml.hops.rewrite.RewriteAlgebraicSimplificationStatic.rewriteHopDAGs(RewriteAlgebraicSimplificationStatic.java:83)
> at
> org.apache.sysml.hops.rewrite.ProgramRewriter.rewriteHopDAGs(ProgramRewriter.java:275)
> at
> org.apache.sysml.hops.rewrite.ProgramRewriter.rewriteStatementBlockHopDAGs(ProgramRewriter.java:265)
> at
> org.apache.sysml.hops.rewrite.ProgramRewriter.rewriteStatementBlockHopDAGs(ProgramRewriter.java:249)
> at
> org.apache.sysml.hops.rewrite.ProgramRewriter.rewriteStatementBlockHopDAGs(ProgramRewriter.java:233)
> at
> org.apache.sysml.hops.rewrite.ProgramRewriter.rewriteProgramHopDAGs(ProgramRewriter.java:206)
> at
> org.apache.sysml.hops.ipa.IPAPassApplyStaticHopRewrites.rewriteProgram(IPAPassApplyStaticHopRewrites.java:52)
> at
> org.apache.sysml.hops.ipa.InterProceduralAnalysis.analyzeProgram(InterProceduralAnalysis.java:202)
> at
> org.apache.sysml.parser.DMLTranslator.rewriteHopsDAG(DMLTranslator.java:281)
> {code}
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