PH71109: AN UPDATE TO THE AUTOMATIC BINARY OPTIMIZER FOR Z/OS V2.3 TRIAL TO INCLUDE THE CONTENTS OF THE 202605 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 202605 PTF.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of IBM Automatic Binary Optimizer      *
  *                 (ABO) for z/OS 2.3 Trial                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: This APAR adds the following new        *
  *                      function from the ABO 2.3 PTF:          *
  *                                                              *
  *                      1) In rare cases, COBOL programs        *
  *                      optimized using the Automatic Binary    *
  *                      Optimizer may abend with an S0C7 error  *
  *                      when performing operations with packed  *
  *                      decimal data in vector registers when   *
  *                      the working set of data is large. This  *
  *                      is due to optimized modules using an    *
  *                      incorrect sequence of instructions for  *
  *                      spilling vector registers.              *
  ****************************************************************
  * RECOMMENDATION: Apply the IBM-provided PTF                   *
  ****************************************************************
  The ABO 2.3 Trial was modified to include all of the above items
  from the May 2026 ABO 2.3 PTF.
  

Problem conclusion

• The ABO 2.3 Trial was modified to include all of the above items
  from the May 2026 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:

  UO07636 UO07637

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 UO07636

     UP26/05/05 I 1000

• R23J PSY UO07637

     UP26/05/05 I 1000

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.