PI68523: MUCH LONGER COMPILE TIMES UNDER OPTIMIZATION FOR PROGRAMS CONTAINING MANY EXEC CICS HANDLE STATEMENTS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• For programs containing many EXEC CICS HANDLE statements, the
  compiler appears to go into a loop though it does eventually
  terminate.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Enterprise COBOL V5.2 compiling     *
  *                 programs containing a large number of 'EXEC  *
  *                 CICS' and 'EXEC CICS HANDLE CONDITION'       *
  *                 statements and using compiler option OPT(1)  *
  *                 or OPT(2).                                   *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Compiler performance: Compiler takes a  *
  *                      long time to finish compilation.        *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF.                      *
  *                                                              *
  ****************************************************************
  An 'EXEC CICS HANDLE CONDITION' statement creates control flow
  between every 'EXEC CICS' statement. With many such statements
  the control flow becomes extremely complex and affects control
  flow analysis for optimization.
  

Problem conclusion

• The compiler was updated to do control flow analysis to find
  out which 'EXEC CICS' statements can be reached by each 'EXEC
  CICS HANDLE CONDITION' statement. This simplifies control flow
  when there are 'EXEC CICS' statements which cannot be reached
  by a 'EXEC CICS HANDLE CONDITION' statement.
  

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:

  PI72818

Modules/Macros

•    IGYCBE
  

Fix information

• Fixed component name

  ENT COBOL FOR Z

• Fixed component ID

  5655W3200

Applicable component levels

• R520 PSY UI41146

     UP16/09/30 P F609

Fix is available

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