IV19960: UNEXPECTED BEHAVIOUR IN COMPILED CODE

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APAR status

  • Closed as program error.

Error description

  • Error Message: Unexpected results while running a compiled
    method. (Unexpected exceptions, unexpected values, gpf etc.)
    .
    Stack Trace: N/A
    .
    

Local fix

  • -Xjit:disableEscapeAnalysis,disableLocalDSE
    

Problem summary

  • A bug in the optimizations "escape analysis" and "dead store
    elimination" leave internal compilation tracking information in
    a stale state which leads to invalid code being generated.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.0 SR10
    6.0.1 SR2
    7.0.0 SR1
    .
    The optimizations have been corrected such that the stale
    compilation info is updated appropriately.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV19960

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    600

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-04-20

  • Closed date

    2012-04-20

  • Last modified date

    2012-08-16

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    IV26366

Fix information

  • Fixed component name

    JIT

  • Fixed component ID

    620700124

Applicable component levels

  • R600 PSY

       UP

  • R260 PSY

       UP



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Document information


More support for:

Runtimes for Java Technology
Just In Time (JIT) Compiler

Software version:

6.0

Reference #:

IV19960

Modified date:

2012-08-16

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