LI76881: COMPILER ABEND WITH -QIPA

XL C/C++ for Linux Fix Pack 8 (January 2014 Update) for 10.1
July 2012 Update for XL C/C++ for Linux, V10.1

APAR status

• Closed as program error.

Error description

• When compiling a large test case with -qipa=level=1, the ipa64
  component of the compiler abends.
  
  ===== COMPILE COMMAND:
  xlC_r -c -O2 -q64 -qstrict -qipa=level=1 -qrtti=all -Q -g
  -qlibansi -qro -qroconst -qcheck=all -qtls test.cpp
  
  ===== ACTUAL OUTPUT:
  $xlC_r -c -O2 -q64 -qstrict -qipa=level=1 -qrtti=all -Q -g
  -qlibansi -qro -qroconst -qcheck=all -qtls test.cpp
  
  Calling signal handler...
  1586-494 (U) INTERNAL COMPILER ERROR: Signal 11.
  /usr/vacpp/bin/.orig/xlC_r: 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

• As a temporary workaround, avoid using -g with -qipa=level=1
  

Problem summary

• USERS AFFECTED:
  User using IPA to compile large programs may be affected by
  this issue.
  
  PROBLEM DESCRIPTION:
  The compiler produces an internal compiler error when encoding
  the block number for TEST instruction.
  The problems occurs when IPA tries to encode a big basic block
  number for TEST instruction.
  

Problem conclusion

• This issue has been fixed.
  

Temporary fix

Comments

APAR Information

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

  IV21132

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

Fix information

• Fixed component name

  XL C/C++ SLES10

• Fixed component ID

  5724U8300

Applicable component levels

• RA10 PSY

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