IJ30034: INTERNAL COMPILER ERROR WITH INLINE ASM IN PASE ENVIRONMENT

APAR status

• Closed as program error.

Error description

• When compiling an inline ASM statement with the XL C/C++ for AIX
  compiler in the IBM i PASE environment, the compiler encounters
  an internal compiler error.  The error only occurs with the
  xlclang++ invocation of the compiler - the legacy xlC invocation
  works without issue.
  
  
  > xlclang++ test.cpp
  ./opt/IBM/xlC/16.1.0/bin/.orig/xlclang++: error:
     1501-230 Internal compiler error; please contact your Service
  Representative.
      For more information visit:
     http://www.ibm.com/support/docview.wss?uid=swg21110810
  
  
  
  
     === TEST CASE ===
  
  int main()
  {
          const char *s;
          asm volatile("" : : "rm"(s) : "memory");
  }
  

Local fix

Problem summary

• USERS AFFECTED:
  PASE users who have testcases that make use of ASM only are
  affected by this issue.
  
  PROBLEM DESCRIPTION:
  The compiler was incorrectly interpreting an ASM iterator
  causing an internal compiler error.
  

Problem conclusion

• The compiler has been fixed to handle the above mentioned
  scenario.
  

Temporary fix

Comments

APAR Information

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

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

Fix information

• Fixed component name

  XL C/C++ FOR AI

• Fixed component ID

  5725C7200

Applicable component levels