IV85624: COMPILER LIMIT EXCEEDED CONSTANT TABLE OVERFLOW WITH -QCHECK/-C

XL Fortran for AIX Fix Pack 2 (July 2016 PTF) for 15.1.3
XL Fortran for AIX, V15.1.3.3 Fix Pack (December 2016)
XL Fortran for AIX, V15.1.3.4 Fix Pack (April 2017)
XL Fortran for AIX, V15.1.3.5 Fix Pack (July 2018)

APAR status

• Closed as program error.

Error description

• When compiling with the -qcheck/-C option for bounds checking,
  the compiler is encountering an internal compiler error
  referencing a constant table overflow, even when the source is
  small and does not use many constants.
  
  The error message will look similar to:
  
  
     "test.f90", 1500-005 (S) COMPILER LIMIT EXCEEDED in
     _xlfN10empty_typeD1: Constant table overflow.  Compilation
     ended.  Reduce the number of constants in the program to less
     than 262143 and recompile.
  

Local fix

• - Do not use -qcheck/-C
  - Optimization with -O might work around the issue by
  optimizing away internally generated constant symbols causing
  the constant overflow
  

Problem summary

• PROBLEM DESCRIPTION:
  The XL Fortran compiler generates bounds checking code that is
  overflowing an internal table inside the compiler, causing an
  internal error.
  
  USERS AFFECTED:
  Users who have code with nested derived types containing
  allocatable components and compile with bounds checking enabled
  via -C/-qcheck and xlf95.
  

Problem conclusion

• The problem was fixed.
  

Temporary fix

Comments

APAR Information

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

  LI79025

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

Fix information

• Fixed component name

  XL FORTRAN FOR

• Fixed component ID

  5725C7400

Applicable component levels

• RF13 PSN LI79025

     UP06/09/13