IV54276: COMPILER RUNNING OUT OF MEMORY

XL C/C++ for AIX Fix Pack 8 (March 2014 PTF) for 12.1
XL C/C++ for AIX Fix Pack 11 (February 2015 PTF) for 12.1
XL C/C++ for AIX Fix Pack 12 (May 2015 PTF) for 12.1
XL C/C++ for AIX Fix Pack 13 (August 2015 Update) for 12.1
XL C/C++ for AIX Fix Pack 14 (December 2015 Update) for 12.1
XL C/C++ for AIX Fix Pack 15 (April 2016 Update) for 12.1
XL C/C++ for AIX Fix Pack 16 (July 2016 Update) for 12.1
XL C/C++ for AIX Fix Pack 17 (November 2016 Update) for 12.1
XL C/C++ for AIX Fix Pack 18 (February 2017 Update) for 12.1
XL C/C++ for AIX Fix Pack 19 (August 2017 Update) for 12.1
XL C/C++ for AIX Fix Pack 20 (March 2018 Update) for 12.1
XL C/C++ for AIX Fix Pack 9 (July 2014 PTF) for 12.1
XL C/C++ for AIX Fix Pack 10 (October 2014 PTF) for 12.1
XL C/C++ for AIX Fix Pack 21 (January 2019 Update) for 12.1

APAR status

• Closed as program error.

Error description

• When compiling a large test case with -O, the compiler front end
  runs out of memory when trying to inline various functions.
  
  The compile time error looks similar to the following:
  $ xlC_r -c -O test.cpp
  1540-5210 (S) Insufficient memory.
  $
  

Local fix

• Avoid using -O for the single file that fails to compile.
  

Problem summary

• USERS AFFECTED:
  Clients with complex source code, especially with recursive
  calls may be affected by this issue.
  
  PROBLEM DESCRIPTION:
  During recursive calls, the compiler frontend was running out
  of memory.
  

Problem conclusion

• Since the compiler frontend was running out of memory, we have
  increased the default bmaxdata to the maximum 32-bit address
  space.
  

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:

  LI77950

Fix information

• Fixed component name

  XL C/C++ FOR AI

• Fixed component ID

  5725C7200

Applicable component levels