PI69154: CBL V5 INCREASED STACK USAGE FOR XML PARSE RETURNING

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After comparing the V4 and V5 code generated by the compilers,
  both of them requires a large temporary variable to process the
  XML statement. V4 uses heap storage for this purpose, while V5
  uses the stack. The total storage required for V4 is less than
  that for V5 for UTF-8 input.  Changing CBL V5 to use heap
  storage instead of stack storage to be more like CBL V4.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Enterprise COBOL 5.2 compiling and  *
  *                 running programs containing XML PARSE        *
  *                 statements that use the RETURNING NATIONAL   *
  *                 phrase.                                      *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Runtime performance: Excessive use of   *
  *                      STACK storage at execution compared to  *
  *                      Enterprise COBOL 4.2 and earlier.       *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF.                      *
  *                                                              *
  ****************************************************************
  The memory for a compiler temporary used for NATIONAL
  conversion in XML PARSE statements was coming from STACK
  storage instead of being allocated dynamically from HEAP
  storage.
  

Problem conclusion

• The compiler was updated so that memory for the compiler
  temporary used for NATIONAL conversion in XML PARSE statements
  is now dynamically allocated from HEAP storage instead of
  statically allocated from STACK storage.
  

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:

  PI72827

Modules/Macros

•    IGYCRCTL
  

Fix information

• Fixed component name

  ENT COBOL FOR Z

• Fixed component ID

  5655W3200

Applicable component levels

• R520 PSY UI42823

     UP16/11/26 P F611

Fix is available

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