[SYSTEMDS-2473] Side effect between IPA inlining/dead code and rewrites - ASF JIRA

XML

Word

Printable

JSON

Details

Type: Task
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: SystemML 1.2
Component/s: None
Labels:
None

Description

For special cases IPA rewrites showed side effects with IPA function inlining and dead code elimination leading to a temporarily corrupted function call graph and thus a null pointer exception

Caused by: java.lang.NullPointerException
        at org.apache.sysml.hops.ipa.FunctionCallGraph.removeFunctionCall(FunctionCallGraph.java:182)
        at org.apache.sysml.hops.ipa.IPAPassEliminateDeadCode.findAndRemoveDeadCode(IPAPassEliminateDeadCode.java:83)
        at org.apache.sysml.hops.ipa.IPAPassEliminateDeadCode.rewriteProgram(IPAPassEliminateDeadCode.java:57)
        at org.apache.sysml.hops.ipa.InterProceduralAnalysis.analyzeProgram(InterProceduralAnalysis.java:207)
        at org.apache.sysml.parser.DMLTranslator.rewriteHopsDAG(DMLTranslator.java:272)
        at org.apache.sysml.api.DMLScript.execute(DMLScript.java:447)
        at org.apache.sysml.api.DMLScript.executeScript(DMLScript.java:272)
        ... 10 more

Attachments

Activity

People

Assignee:: Matthias Boehm

Reporter:: Matthias Boehm

Votes:: 0 Vote for this issue

Watchers:: 1 Start watching this issue

Dates

Created:: 31/Jul/18 00:41

Updated:: 20/Dec/20 17:04

Resolved:: 20/Dec/20 17:04