PH25225: COMPILER DEGRADATION WHEN THE NUMCHECK COMPILER OPTION IS USED

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Some programs compiled with with the NUMCHECK compiler option
  may experience a compiler performance degradation when compared
  to the previous V5+ compile statistics.  The performance will
  be improved.
  

Local fix

• Compile with NONUMCHECK.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Enterprise COBOL V6.3 compiling     *
  *                 programs with NUMCHECK with a large number   *
  *                 of PERFORM statements and a large number of  *
  *                 paragraphs that are PERFORMed.               *
  ****************************************************************
  * PROBLEM DESCRIPTION: Time to compile programs increases from *
  *                      prior PTFs.                             *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF.                      *
  ****************************************************************
  In the March 2019 V6.2 PTF and the V6.3 GA, we introduced an
  optimization that removed redundant ON SIZE ERROR and IF
  NUMERIC tests generated by NUMCHECK. The analysis for this
  optimization requires additional work, increasing the time it
  takes to compile a program compared to prior compilers. This is
  expected.
  However, INITCHECK does similar analysis and had additional
  measures to limit the analysis done, in order to keep
  compilation time more manageable. These measures were not
  applied to NUMCHECK.
  

Problem conclusion

• NUMCHECK was limited in a similar manner to INITCHECK to
  decrease the time required to compile programs with a large
  number of PERFORM statements and a large number of paragraphs
  that are PERFORMed.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PH23252

• APAR is sysrouted TO one or more of the following:

Modules/Macros

• IGY8RWTU IGYCASMB IGYCCBE  IGYCCCRT IGYCCICS IGYCCSRV IGYCDGEN
  IGYCDIAG IGYCDMAP IGYCEN$0 IGYCEN$1 IGYCEN$2 IGYCEN$3 IGYCEN$4
  IGYCEN$5 IGYCEN$8 IGYCEN$D IGYCEN$R IGYCFGEN IGYCFREE IGYCINIT
  IGYCJA$0 IGYCJA$1 IGYCJA$2 IGYCJA$3 IGYCJA$4 IGYCJA$5 IGYCJA$8
  IGYCJA$D IGYCJA$R IGYCLIBR IGYCLSTR IGYCLVL0 IGYCLVL1 IGYCLVL2
  IGYCLVL3 IGYCLVL8 IGYCMALL IGYCOB2E IGYCOPI  IGYCOSCN IGYCPGEN
  IGYCRCTL IGYCRDPR IGYCRDSC IGYCREAL IGYCRWT  IGYCSCAN IGYCSIMD
  IGYCUE$0 IGYCUE$1 IGYCUE$2 IGYCUE$3 IGYCUE$4 IGYCUE$5 IGYCUE$8
  IGYCUE$D IGYCUE$R IGYCXREF IGYDRV   IGYEQCWI IGYMSGE  IGYMSGK
  IGYMSGT  IGYQCBE  IGYQSPLT IGYZQEN6 IGYZQENU IGYZQJP6 IGYZQJPN
  

Fix information

• Fixed component name

  ENT COBOL FOR Z

• Fixed component ID

  5655EC600

Applicable component levels

• R630 PSY UI69624

     UP20/05/27 P F005

• R631 PSY UI69625

     UP20/05/27 P F005

• R632 PSY UI69626

     UP20/05/27 P F005

• R63H PSY UI69627

     UP20/05/27 P F005

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.