LI76962: INTERNAL COMPILER ERROR WITH -QSIMD=AUTO

XL C/C++ for Linux Fix Pack 9 (August 2013 Update) for 11.1
October 2012 Update for XL C/C++ for Linux, V11.1
XL C/C++ for Linux Fix Pack 8 (June 2013 Update) for 11.1

APAR status

• Closed as program error.

Error description

• When compiling source code, the following internal compiler
  error is occurring when using -qsimd=auto:
  
  
  $ xlC -O3 -qhot -qsimd=auto -qmaxmem=-1 -qarch=pwr7 -qtune=pwr7
  -qcache=auto -c test.cpp
  
  Calling signal handler...
  1586-494 (U) INTERNAL COMPILER ERROR: Signal 11.
  

Local fix

• Do not use -qsimd=auto
  

Problem summary

• PROBLEM DESCRIPTION:
  Internal compiler error when simdizing code with a specific
  pattern (stores to adjacent memory location from different
  memory locations, as well as other conditions).
  
  USERS AFFECTED:
  Users who turn on simd with -qsimd=auto
  

Problem conclusion

• The issue was corrected.
  

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:

  IV29524

Fix information

• Fixed component name

  XL C/C++ FOR LI

• Fixed component ID

  5724X1400

Applicable component levels

• RB10 PSY

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