IV10084: VARIABLE __ATTRIBUTE CAUSING COMPILER ERROR

November 2011 PTF for XL C/C++ for AIX, V11.1
January 2012 PTF for XL C/C++ for AIX, V11.1
April 2012 PTF for XL C/C++ for AIX, V11.1
July 2012 PTF for XL C/C++ for AIX, V11.1
October 2012 PTF for XL C/C++ for AIX, V11.1
February 2013 PTF for XL C/C++ for AIX, V11.1
XL C/C++ for AIX Fix Pack 14 (May 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 15 (August 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 16 (November 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 17 (February 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 18 (May 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 19 (August 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 20 (November 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 21 (April 2015 PTF) for 11.1
XL C/C++ for AIX Fix Pack 22 (September 2015 PTF) for 11.1
XL C/C++ for AIX Fix Pack 23 (March 2016 PTF) for 11.1
XL C/C++ for AIX Fix Pack 24 (September 2016 PTF) for 11.1

APAR status

• Closed as program error.

Error description

• When compiling source that contains a variable attribute using
  the syntax form __attribute__ or __attribute, the compiler is
  encountering an internal compiler error in the C++ front end.
  
  
     =====  TEST CASE  =====
  
  int foo()
  {
     typedef void* atype;
     __attribute__((unused))  atype a;
     return 0;
  }
  
     =====   OUTPUT    =====
  
  % xlC -c test.cpp
  xlC: 1501-230 (S) Internal compiler error; please contact your
  Service Representative.  For more information visit:
  http://www.ibm.com/support/docview.wss?uid=swg21110810
  

Local fix

• - Remove attribute
  

Problem summary

• PROBLEM DESCRIPTION:
  An internal compiler error occurs while processing
  __attribute((unused)) on a typedef.
  
  USERS AFFECTED:
  Users of __attribute((unused)) on a typedef.
  

Problem conclusion

• The issue was corrected, and the internal compiler error is no
  longer generated.
  

Temporary fix

Comments

APAR Information

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

  LI76402

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

Fix information

• Fixed component name

  XL C/C++ AIX

• Fixed component ID

  5724X1300

Applicable component levels

• RB10 PSY U848679

     UP C