IZ80914: COMPILATION HANGS WITH -QPDF1

January 2011 PTF for XL C/C++ for AIX, V11.1
May 2011 PTF for XL C for AIX, V11.1
May 2011 PTF for XL C/C++ for AIX, V11.1
August 2011 PTF for XL C/C++ for AIX, V11.1
November 2011 PTF for XL C/C++ for AIX, V11.1
January 2012 PTF for XL C for AIX, V11.1
January 2012 PTF for XL C/C++ for AIX, V11.1
April 2012 PTF for XL C for AIX, V11.1
April 2012 PTF for XL C/C++ for AIX, V11.1
July 2012 PTF for XL C/C++ for AIX, V11.1
October 2012 PTF for XL C for AIX, V11.1
October 2012 PTF for XL C/C++ for AIX, V11.1
February 2013 PTF for XL C for AIX, V11.1
February 2013 PTF for XL C/C++ for AIX, V11.1
XL C/C++ for AIX Fix Pack 14 (May 2013 PTF) for 11.1
XL C for AIX Fix Pack 14 (May 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 15 (August 2013 PTF) for 11.1
XL C for AIX Fix Pack 15 (August 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 16 (November 2013 PTF) for 11.1
XL C for AIX Fix Pack 17 (February 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 17 (February 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 18 (May 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 19 (August 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 20 (November 2014 PTF) for 11.1
XL C for AIX Fix Pack 21 (April 2015 PTF) for 11.1
XL C/C++ for AIX Fix Pack 21 (April 2015 PTF) for 11.1
XL C/C++ for AIX Fix Pack 22 (September 2015 PTF) for 11.1
XL C for AIX Fix Pack 23 (March 2016 PTF) for 11.1
XL C/C++ for AIX Fix Pack 23 (March 2016 PTF) for 11.1
XL C for AIX Fix Pack 24 (September 2016 PTF) for 11.1
XL C/C++ for AIX Fix Pack 24 (September 2016 PTF) for 11.1
January 2011 PTF for XL C for AIX, V11.1
August 2011 PTF for XL C for AIX, V11.1
November 2011 PTF for XL C for AIX, V11.1
July 2012 PTF for XL C for AIX, V11.1
XL C for AIX Fix Pack 16 (November 2013 PTF) for 11.1
XL C for AIX Fix Pack 18 (May 2014 PTF) for 11.1
XL C for AIX Fix Pack 19 (August 2014 PTF) for 11.1
XL C for AIX Fix Pack 20 (November 2014 PTF) for 11.1
XL C for AIX Fix Pack 22 (September 2015 PTF) for 11.1

APAR status

• Closed as program error.

Error description

• The compilation seems to hang if linking a large number of
  objects with -qpdf1.
  
  
  Attach the running compiler process to a debugger shows that
  ipa64 loops in the same function:
  
  ToBlock__14ReducibleGraphXT13FlowGraphNodeT13FlowGraphEdgeTUiTUi
  _CFRUiUc
  (??, ??, ??) at 0x100553df4
  SuccessorBlock__14ReducibleGraphXT13FlowGraphNodeT13FlowGraphEdg
  eTUiTUi_
  CFRUi(??, ??) at 0x10053d728
  AssignSingleCounters__13PdfInstrumentFUiPUsRi(??, ??, ??, ??) at
  0x1008a397c
  AssignSingleCounters__13PdfInstrumentFUiPUsRi(??, ??, ??, ??) at
  0x1008a3b70
  AssignSingleCounters__13PdfInstrumentFUiPUsRi(??, ??, ??, ??) at
  0x1008a3b70
  AssignSingleCounters__13PdfInstrumentFUiPUsRi(??, ??, ??, ??) at
  0x1008a3b70
  AssignSingleCounters__13PdfInstrumentFUiPUsRi(??, ??, ??, ??) at
  0x1008a3b70
  AssignSingleCounters__13PdfInstrumentFUiPUsRi(??, ??, ??, ??) at
  0x1008a3b70
  AssignSingleCounters__13PdfInstrumentFUiPUsRi(??, ??, ??, ??) at
  0x1008a3b70
  AssignSingleCounters__13PdfInstrumentFUiPUsRi(??, ??, ??, ??) at
  0x1008a3b70
  AssignSingleCounters__13PdfInstrumentFUiPUsRi(??, ??, ??, ??) at
  0x1008a3b70
  AssignSingleCounters__13PdfInstrumentFUiPUsRi(??, ??, ??, ??) at
  0x1008a3b70
  AssignSingleCounters__13PdfInstrumentFUiPUsRi(??, ??, ??, ??) at
  0x1008a3b70
  ExtendedCounterMinimization__13PdfInstrumentFR9BitVectori(??,
  ??, ??) at
  0x1008a328c
  ComputeMinimalCounterMap__13PdfInstrumentFv(??) at 0x100897d90
  Instrument__13PdfInstrumentFUc(??, ??) at 0x1008957cc
  UpdatePDF__11NodeDecoderFP6ListOfXT18removedEdgeElement_(??, ??)
  at
  0x100894ac4
  Decode__13CallGraphNodeFP6ListOfXT18removedEdgeElement_@AF78_12(
  ??, ??)
  at 0x10061b228
  Decode__13CallGraphNodeFP6ListOfXT18removedEdgeElement_(??, ??)
  at
  0x10060a398
  doTransformation__17DoPDFProfileCleanFv(??) at 0x101d0cc8c
  transform__19InterTransformationFv(??) at 0x100459284
  Optimize__15LinkageInstanceFv(??) at 0x1014a96e8
  InvokePass2__FiPPc(??, ??) at 0x100179dbc
  main(??, ??) at 0x1006e00a8
  

Local fix

• N/A
  

Problem summary

• PROBLEM DESCRIPTION: Compiler hangs during link step due to
  overflow issue in PDF1
  
  USERS AFFECTED: Only affects function(s) with more than 64K
  basic blocks.
  

Problem conclusion

• No profiling will be done beyond 64K basic blocks to proceed
  compilation.
  

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:

  LI75791

Fix information

• Fixed component name

  XL C FOR AIX

• Fixed component ID

  5724X1200

Applicable component levels