IZ91513: INTERNAL COMPILER ERROR WITH -Q64 AND -O3

January 2011 PTF for XL Fortran for AIX, V13.1
March 2011 PTF for XL Fortran for AIX, V13.1
August 2011 PTF for XL Fortran for AIX, V13.1
January 2012 PTF for XL Fortran for AIX, V13.1
April 2012 PTF for XL Fortran for AIX, V13.1
July 2012 PTF for XL Fortran for AIX, V13.1
October 2012 PTF for XL Fortran for AIX, V13.1
February 2013 PTF for XL Fortran for AIX, V13.1
May 2013 PTF for XL Fortran for AIX, V13.1
XL Fortran for AIX Fix Pack 15 (August 2013 PTF) for 13.1
XL Fortran for AIX Fix Pack 16 (November 2013 PTF) for 13.1
XL Fortran for AIX Fix Pack 17 (February 2014 PTF) for 13.1
XL Fortran for AIX Fix Pack 21 (April 2015 PTF) for 13.1
XL Fortran for AIX Fix Pack 22 (September 2015 PTF) for 13.1
XL Fortran for AIX Fix Pack 23 (March 2016 PTF) for 13.1
XL Fortran for AIX Fix Pack 24 (September 2016 PTF) for 13.1

APAR status

• Closed as program error.

Error description

• The code fails to compile with Internal Compiler error while
  compiled with higher opt (-O3 and up) and -q64.
  

Local fix

• Lower optimization level (-O2)
  

Problem summary

• USERS AFFECTED:
  This issue could potentially affect any users compiling at O2
  or higher.
  
  PROBLEM DESCRIPTION:
  There is an unintialized variable in a specific optimization of
  the compiler. This causes the compiler to crash on some
  platforms with some test cases.
  

Problem conclusion

• The compiler has been fixed by initializing the specific
  variable.
  

Temporary fix

Comments

APAR Information

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

  LI75756

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

Fix information

• Fixed component name

  XL FORTRAN FOR

• Fixed component ID

  5724X1500

Applicable component levels

• RD10 PSY U840772

     UP C