PI97404: IGYCB7104-U INTERNAL ERROR WHILE COMPILING FUNCTION XXXXXX. FAILED ASSERTION ON ANALYSES/DOMINATORS.CPP:117

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• COBOL V6.1 Compiler error at OPT(1|2):
  
  
  IGYCB7104-U   Internal error while compiling function XXXXXX.
  Failed assertion on analyses/Dominators.cpp:117. Compilation
  terminated.
  --------------------------------------------------------
  Assertion failed at analyses/Dominators.cpp:117: false
  Unreachable block in the CFG 371 374
  

Local fix

• Compile at OPT(0)
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Enterprise COBOL V6.1 compiling     *
  *                 programs with PERFORM statements that can    *
  *                 reach themselves, using INITCHECK.           *
  ****************************************************************
  * PROBLEM DESCRIPTION: Compiler ABORT with message             *
  *                      MSGIGYCB7104-U: Internal error while    *
  *                      compiling function XXXXXX. Failed       *
  *                      assertion on                            *
  *                      analyses/Dominators.cpp:117.            *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF.                      *
  ****************************************************************
  In some rare cases, when PERFORM statements cause infinite
  loops by reaching themselves, the code that allows INITCHECK to
  identify which data items are initialized by each PERFORM
  statement cannot properly identify which lines of code will be
  executed by a PERFORM.
  

Problem conclusion

• The compiler was modified to handle those rare cases more
  gracefully.
  

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:

  PI98912 PH00619

Modules/Macros

• IGY8RWTU IGYCCBE  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
  IGYCLIBH IGYCLIBO IGYCLIBR IGYCLSTR IGYCLVL0 IGYCLVL1 IGYCLVL2
  IGYCLVL3 IGYCLVL8 IGYCMALL 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
  IGYZQDRV IGYZQENU IGYZQJPN
  

Fix information

• Fixed component name

  ENT COBOL FOR Z

• Fixed component ID

  5655EC600

Applicable component levels

• R610 PSY UI56627

     UP18/06/21 P F806

• R611 PSY UI56628

     UP18/06/22 P F806

• R612 PSY UI56629

     UP18/06/22 P F806

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.