PH67981: OPTIMIZATION ERROR WITH ABO: ASSERTION FAILED AT ../../TRBINOPT/OPTIMIZER/BINOPTPERFORMRETURNANALYSIS.CPP:593

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Optimization error with ABO: Assertion failed at
  ../../trbinopt/optimizer/BinOptPerformReturnAnalysis.cpp:593
  

Local fix

• N/A
  

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: 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.    *
  ****************************************************************
  * RECOMMENDATION: Apply the IBM-provided PTF                   *
  ****************************************************************
  ABO was modified to identify and avoid optimizing uninitialized
  VN cells.
  

Problem conclusion

• ABO was modified to identify and avoid optimizing uninitialized
  VN cells.
  

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:

  PH68554

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 BINARY OPT

• Fixed component ID

  5697AB200

Applicable component levels

• R230 PSY UO04942

     UP25/09/20 P F509

• R23J PSY UO04943

     UP25/09/20 P F509

Fix is available

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