IV07276: COMPILATION HANG WITH -O3 -QHOT

January 2012 PTF for XL Fortran for AIX, V13.1
April 2012 PTF for XL Fortran for AIX, V13.1
July 2012 PTF for XL Fortran for AIX, V13.1
October 2012 PTF for XL Fortran for AIX, V13.1
February 2013 PTF for XL Fortran for AIX, V13.1
May 2013 PTF for XL Fortran for AIX, V13.1
XL Fortran for AIX Fix Pack 15 (August 2013 PTF) for 13.1
XL Fortran for AIX Fix Pack 16 (November 2013 PTF) for 13.1
XL Fortran for AIX Fix Pack 17 (February 2014 PTF) for 13.1
XL Fortran for AIX Fix Pack 21 (April 2015 PTF) for 13.1
XL Fortran for AIX Fix Pack 22 (September 2015 PTF) for 13.1
XL Fortran for AIX Fix Pack 23 (March 2016 PTF) for 13.1
XL Fortran for AIX Fix Pack 24 (September 2016 PTF) for 13.1

APAR status

• Closed as program error.

Error description

• A source file from an application
  hangs during compile at higher
  optimization levels involving -qhot with V13.1 XLF for AIX.
  
  Using -qxflag=ntempv can work around the issue.
  

Local fix

• Use -qxflag=ntempv
  

Problem summary

• PROBLEM DESCRIPTION: There are checks in temp vector allocation
  to ensure the clusters are contiguous.
  However these checks occur too late - right before vector
  allocation instead of when
  the clusters are being created. This results in compile time
  hang with -qhot for some files.
  
  USERS AFFECTED: Users of -qhot
  

Problem conclusion

• Problem is fixed. Apply recommended service.
  

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:

  LI76613

Fix information

• Fixed component name

  XL FORTRAN FOR

• Fixed component ID

  5724X1500

Applicable component levels

• RD10 PSY U848520

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