LI77124: INTERNAL COMPILER ERROR WHEN USING -O2.

April 2013 Update for XL C/C++ for Linux, V12.1
XL C/C++ for Linux Fix Pack 8 (October 2015 Update) for 12.1
December 2012 Update for XL C/C++ for Linux, V12.1
XL C/C++ for Linux Fix Pack 4 (October 2013 Update) for 12.1
XL C/C++ for Linux Fix Pack 5 (December 2013 Update) for 12.1
XL C/C++ for Linux Fix Pack 6 (February 2014 Update) for 12.1
XL C/C++ for Linux Fix Pack 7 (May 2014 Update) for 12.1

APAR status

• Closed as program error.

Error description

• Internal compiler error when using -O2.
  

Local fix

• Use NOOPT
  

Problem summary

• USERS AFFECTED:
  This issue could potentially hit any user that uses
  optimization.
  
  PROBLEM DESCRIPTION:
  The compiler produces an internal compiler error which is
  caused by internal data structures not being updated properly.
  

Problem conclusion

• The compiler fix is to correct where we update the data
  structures.
  

Temporary fix

Comments

APAR Information

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

  IV29934

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

Fix information

• Fixed component name

  XL C/C++ FOR LI

• Fixed component ID

  5725C7300

Applicable component levels

• RC10 PSN IV29934

     UP06/09/13