PH68184: AN UPDATE TO THE AUTOMATIC BINARY OPTIMIZER FOR Z/OS V2.3 TRIAL TO INCLUDE THE CONTENTS OF THE 202509 PTF.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• An update to the Automatic Binary Optimizer for z/OS v2.3
  Trial to include the contents of the 202509 PTF.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of IBM Automatic Binary Optimizer      *
  *                 (ABO) for z/OS 2.3, and ABO for z/OS 2.3     *
  *                 Trial                                        *
  ****************************************************************
  * PROBLEM DESCRIPTION: This APAR adds the following new        *
  *                      functions from the ABO 2.3 PTF:         *
  *                                                              *
  *                      1) In some cases, the Automatic Binary  *
  *                      Optimizer may fail with the message     *
  *                      "Assertion failed at ../../trbinopt/    *
  *                      optimizer/DFPReduction.cpp:319: false"  *
  *                      when optimizing modules containing      *
  *                      packed or zoned decimal divisions       *
  *                      operations using numbers with a large   *
  *                      number of digits that were previously   *
  *                      optimized by the COBOL v6 compiler.     *
  *                                                              *
  *                      2) In some cases, the Automatic Binary  *
  *                      Optimizer may fail with the message     *
  *                      "Assertion failed at ../../trbinopt/    *
  *                      optimizer/                              *
  *                      BinOptPerformReturnAnalysis.cpp:597:    *
  *                      !bvNewSucc->isEmpty()" when optimizing  *
  *                      modules containing control flow that    *
  *                      results in an uninitialized VN cell.    *
  *                                                              *
  *                      3) ABO 2.3 now supports optimizing      *
  *                      COBOL modules compiled with the         *
  *                      ARCH(14) option.                        *
  ****************************************************************
  * RECOMMENDATION: Apply the IBM-provided PTF                   *
  ****************************************************************
  The ABO 2.3 Trial was modified to include all of the above items
  from the September 2025 ABO 2.3 PTF.
  

Problem conclusion

• The ABO 2.3 Trial was modified to include all of the above items
  from the September 2025 ABO 2.3 PTF.
  

Temporary fix

Comments

APAR Information

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

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

  UO04944 UO04945

Modules/Macros

• BOZACCEP BOZALLOC BOZAPPLY BOZAUPLE BOZBXITA BOZCIAPJ BOZCICPJ
  BOZCICPR BOZCICSJ BOZCICSR BOZDDDEF BOZEQCWI BOZEXE1  BOZGLUE
  BOZJCLE  BOZJIVP  BOZMCTPA BOZMSGE  BOZMSGK  BOZMSGT  BOZOBJ1
  BOZOBJ2  BOZOPT   BOZPA    BOZPAJ   BOZRECV  BOZRECV1 BOZRIDT
  BOZSETRT BOZSMF   BOZSMFJ  BOZSMFR  BOZSMPE  BOZSRC1  BOZSRC2
  BOZTRUE
  

Fix information

• Fixed component name

  AUTO BIN OPT TR

• Fixed component ID

  5697TR200

Applicable component levels

• R230 PSY UO04944

     UP25/09/20 P F509

• R23J PSY UO04945

     UP25/09/20 P F509

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.