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PI89064: NEW FUNCTION: ABO SUPPORT FOR MODULES CONTAINING PROGRAM SEGMENTATION.

A fix is available

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APAR status

  • Closed as program error.

Error description

  • ABO support for modules containing Program Segmentation.
    

Local fix

Problem summary

  • ABO can now optimize most compiled programs containing program
    segmentation
    ****************************************************************
    * USERS AFFECTED: All users of the IBM Automatic Binary        *
    * Optimizer (ABO) for z/OS, v1.3 optimizing                    *
    * programs containing program segmentation                     *
    *                                                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: This new function APAR adds support     *
    *                     for most programs compiled from source   *
    *                     that contain program segmentation        *
    *                     using priority numbers on sections.      *
    *                                                              *
    *                     Previously ABO would skip optimizing     *
    *                     these CSECTs and issue the message:      *
    *                                                              *
    *                     BOZ1455: unsupported feature             *
    *                      ""Program Segmentation"" found          *
    *                                                              *
    *                     Now with this APAR the majority of       *
    *                     these compiled programs will be          *
    *                     successfully optimized.                  *
    *                                                              *
    *                     The one remaining scenario that is       *
    *                     still not supported by ABO is when the   *
    *                     source contains *all* of the below       *
    *                     characteristics:                         *
    *                      -Priority numbers are present with      *
    *                       values 50->99 (i.e. independent        *
    *                       segments)                              *
    *                      - One or more ALTER statements are      *
    *                        present in an independent segment     *
    *                        where the GO TO being altered IS ALSO *
    *                        an independent segment with an equal  *
    *                        priority number                       *
    *                                                              *
    *                   - One or more GO TO DEPENDING ON           *
    *                     statements are present somewhere in      *
    *                     the program                              *
    *                                                              *
    *                   In this case the message below will be     *
    *                   issued and the CSECT skipped :             *
    *                                                              *
    *                   BOZ1455: unsupported feature ""Program     *
    *                   Complexity 176"" found                     *
    *                     Below is a source code snippet showing   *
    *                     one example of this remaining            *
    *                     unsupported case:                        *
    *                     LabStart Section 60.                     *
    *                     if var = 3                               *
    *                     alter LabA to proceed to                 *
    *                     LabX                                     *
    *                     else if var = 2                          *
    *                     alter LabA to proceed to                 *
    *                     LabY                                     *
    *                     else                                     *
    *                     go to LabX depending on                  *
    *                     var2                                     *
    *                     end-if                                   *
    *                      .                                       *
    *                     LabA Section 60.                         *
    *                     go to."                                  *
    ****************************************************************
    * RECOMMENDATION:  Apply provided service                      *
    ****************************************************************
    ABO can now optimize compiled programs containing user written
    SERVICE LABELs
    

Problem conclusion

  • Compiled programs containing user written SERVICE LABELs can now
    be optimized by ABO
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI89064

  • Reported component name

    AUTO BINARY OPT

  • Reported component ID

    5697AB100

  • Reported release

    130

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    YesSpecatt / New Function / Xsystem

  • Submitted date

    2017-10-18

  • Closed date

    2017-10-30

  • Last modified date

    2017-11-06

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

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

Modules/Macros

  • BOZBXITA BOZEXE1  BOZJIVP  BOZMSGE  BOZMSGK  BOZMSGT  BOZOBJ1
    BOZOPT   BOZRIDT  BOZSRC1
    

Publications Referenced
SC27854504    

Fix information

  • Fixed component name

    AUTO BINARY OPT

  • Fixed component ID

    5697AB100

Applicable component levels

  • R130 PSY UI51540

       UP17/11/01 P F710  

  • R13J PSY UI51541

       UP17/11/01 P F710  

Fix is available

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Document Information

Modified date:
06 November 2017