IJ12233: INTERNAL COMPILER ERROR IN PDF2 LINK STEP

XL C/C++ for AIX Fix Pack 11 (November 2018 PTF) for 13.1
XL C for AIX Fix Pack 11 (November 2018) for 13.1

APAR status

• Closed as program error.

Error description

• The compiler produces an internal compiler error when performing
  pdf2 link step using -qpdf2=pdfname=<profilename>
  
  An error similar to the following might be seen:
  $ time ./makeipa.sh >  makeipa.sh_out
  .
  .
  Trap encountered in IPA:
    SIGSEGV - Segmentation violation
  
    Traceback:
  
    Offset 0x000009e4 Outline::RemapIndirectArg(unsigned
  int,CS2::HashTable<unsigned int,LinkedListOf<unsigned
  int>*,CS2::allocator,CS2::HashInfo<unsigned int> >&)
    Offset 0x000023fc Outline::RemapIndirectArg(unsigned
  int,CS2::HashTable<unsigned int,LinkedListOf<unsigned
  int>*,CS2::allocator,CS2::HashInfo<unsigned int> >&)
    Offset 0x00006a4c Outline::CreateSymbols(unsigned char)
    Offset 0x000013f4 PdfOutliner::OutlineCandidates()
    Offset 0x00001058 PdfOutliner::DoOutline()
    Offset 0x00000020 DoPdfOutlining::doTransformation()
    Offset 0x000003a0 IntraTransformation::transform()
    Offset 0x00000f3c DoPdfOutliningLevel1::doTransformation()
    Offset 0x00000aa4 InterTransformation::transform()
    Offset 0x00009598 LinkageInstance::Optimize()
    Offset 0x00001390 InvokePass2(int,char**)
    Offset 0x000007c0 main
  
    --- End of call chain ---
  1586-494 (U) INTERNAL COMPILER ERROR: Signal 11.
  
  real    3h3m34.58s
  user    1h21m40.99s
  sys     0m5.67s
  $
  

Local fix

• N/A
  

Problem summary

• USERS AFFECTED:
  Clients who perform PDF2 link step may encounter this issue.
  
  
  PROBLEM DESCRIPTION:
  There was an optimization issue with updating the aliastable for
  shadows that are the container symbols of certain bitfields;
  which caused the internal compiler error.
  

Problem conclusion

• The optimization has now been corrected to detect the above
  situation and workaround it.
  

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:

  IJ27049

Fix information

• Fixed component name

  XL C FOR AIX

• Fixed component ID

  5725C7100

Applicable component levels

• RD10 PSY

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