IZ77990: COMPILER ERROR WITH -O2

October 2010 PTF for XL C/C++ for AIX, V10.1
October 2010 PTF for XL C for AIX, V10.1

APAR status

• Closed as program error.

Error description

• When compiling a very large (10s of megabytes) and complex
  source file at -O2, the compiler is encountering an internal
  compiler error due to lack of memory.
  

Local fix

• Do not use optimization.
  

Problem summary

• PROBLEM DESCRIPTION:
  The compiler low-level optimizers, 'xlCcode' and 'xlfcode' are
  running out of memory when compiling large applications with
  -O2.
  
  USERS AFFECTED:
  Those who are compiling very large applications with
  optimization.
  

Problem conclusion

• The issue has been corrected by expanding the memory limit of
  the low-level optimizers.
  

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:

  IZ84740 LI75765 LI75844 LI75876

Fix information

• Fixed component name

  XL C AIX

• Fixed component ID

  5724U8000

Applicable component levels