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PH64348: PROGRAM TAKES AN EXCESSIVE TIME TO COMPILE.

A fix is available

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APAR status

  • Closed as program error.

Error description

  • When compiling a program with multiple literals that are powers
    of 2, the optimizer transforms the program in a way that
    produces a faster compiled program but slows down the compiler
    when it does further optimizations.
    

Local fix

  • Compile at OPT(0) or ARCH(11) or substitute the literals with
    their product.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Users of Enterprise COBOL 6.4 compiling      *
    *                 programs at OPT(1|2),ARCH(12) that have      *
    *                 multiply a data item by multiple literals,   *
    *                 where each literal is a power of 2.          *
    ****************************************************************
    * PROBLEM DESCRIPTION: Program takes an excessive time to      *
    *                      compile.                                *
    ****************************************************************
    * RECOMMENDATION: Apply the provided PTF                       *
    ****************************************************************
    When compiling a program with multiple literals that are powers
    of 2, the optimizer transforms the program in a way that
    produces a faster compiled program but slows down the compiler
    when it does further optimizations.
    

Problem conclusion

  • The compiler was fixed to perform further optimizations more
    efficiently after it expands the multiplications.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH64348

  • Reported component name

    ENT COBOL FOR Z

  • Reported component ID

    5655EC600

  • Reported release

    640

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2024-11-28

  • Closed date

    2024-12-12

  • Last modified date

    2025-01-21

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

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

    PH64909

Modules/Macros

  • IGY8RWTU IGYCASMB IGYCCBE  IGYCCCRT IGYCCICS IGYCCSRV IGYCDGEN
    IGYCDIAG IGYCDMAP IGYCEN$0 IGYCEN$1 IGYCEN$2 IGYCEN$3 IGYCEN$4
    IGYCEN$5 IGYCEN$8 IGYCEN$D IGYCEN$R IGYCFGEN IGYCFREE IGYCINIT
    IGYCJA$0 IGYCJA$1 IGYCJA$2 IGYCJA$3 IGYCJA$4 IGYCJA$5 IGYCJA$8
    IGYCJA$D IGYCJA$R IGYCJBLD IGYCJGEN IGYCLIBR IGYCLSTR IGYCLVL0
    IGYCLVL1 IGYCLVL2 IGYCLVL3 IGYCLVL8 IGYCMALL IGYCOPI  IGYCOPT
    IGYCOSCN IGYCPGEN IGYCRCTL IGYCRDPR IGYCRDSC IGYCREAL IGYCRWT
    IGYCSCAN IGYCSIMD IGYCUE$0 IGYCUE$1 IGYCUE$2 IGYCUE$3 IGYCUE$4
    IGYCUE$5 IGYCUE$8 IGYCUE$D IGYCUE$R IGYCXREF IGYDRV   IGYEQCWI
    IGYMSGE  IGYMSGK  IGYMSGT  IGYQCBE  IGYQSPLT IGYZQEN6 IGYZQENU
    IGYZQJP6 IGYZQJPN
    

Fix information

  • Fixed component name

    ENT COBOL FOR Z

  • Fixed component ID

    5655EC600

Applicable component levels

  • R640 PSY UI99402

       UP24/12/17 P F412

  • R641 PSY UI99403

       UP24/12/17 P F412

  • R642 PSY UI99404

       UP24/12/17 P F412

  • R64H PSY UI99405

       UP24/12/17 P F412

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SS6SG3","label":"Enterprise COBOL for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"640","Line of Business":{"code":"LOB70","label":"Z TPS"}}]

Document Information

Modified date:
16 June 2025