PM89662: OPT(3) MOVES USE OF POINTER BEFORE TEST TO SEE IF ITS NULL

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• opt(3) moves use of pointer before test to see if its null
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of the OPT(3) with NORENT NOWRITABLE   *
  ****************************************************************
  * PROBLEM DESCRIPTION: In some rare combination of statements, *
  *                      the optimizer would move some of the    *
  *                      use of a pointer before the test to see *
  *                      if it was (sys)null. This would lead to *
  *                      an abend in those cases where it was    *
  *                      null (when its use should have been     *
  *                      bypassed)                               *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The optimizer has been fixed to get this right
  

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:

  UK95453 UK95454

Modules/Macros

• IBM3TBY
  

Fix information

• Fixed component name

  ENT PL/I FOR ZO

• Fixed component ID

  5655W6700

Applicable component levels

• R420 PSY UK95453

     UP13/06/28 P F306

• R430 PSY UK95454

     UP13/06/28 P F306

Fix is available

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