LI77325: GRARNN INTERNAL ERROR WITH QARCH=PWR6 OR PWR7

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
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

• When compiling with optimization enabled, and specifying
  architecture level pwr6 or pwr7, an internal compiler error is
  occurring stating that a register has been used before it has
  been defined.
  
  Using -qarch=pwr7
  1500-004: (U) INTERNAL COMPILER ERROR while compiling
  <function>.  Compilation ended.
  Contact your Service Representative and provide the following
  information: GRARNN: vs2629 is used before it is defined. For
  more information visit:
  http://www.ibm.com/support/docview.wss?uid=swg21110810
  
  
  Using -qarch=pwr6
  1500-004: (U) INTERNAL COMPILER ERROR while compiling
  <function>.  Compilation ended.
  Contact your Service Representative and provide the following
  information: GRARNN: fp1339 is used before it is defined. For
  more information visit:
  http://www.ibm.com/support/docview.wss?uid=swg21110810
  

Local fix

• Use -qarch level pwr5 or lower.
  

Problem summary

• PROBLEM DESCRIPTION:
  The compiler is generating bad code from decimal floating point
  computations, resulting in an internal compiler error.
  
  USERS AFFECTED:
  Users who use any level of optimization and DFP.
  

Problem conclusion

• Ensured compiler detects the failing scenario.  Problem was
  corrected.
  

Temporary fix

Comments

APAR Information

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

  IV34103

• 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 IV34103

     UP06/09/13