IY38481: ICE AT TPO

APAR status

• Closed as program error.

Error description

• !*************************************************************
  !*
  !*  DEFECT ABSTRACT     : ICE at TPO
  !*  PMR NUMBER          : 49463,077,724
  !*  COMPILER INVOCATION : xlf95_r
  !*  COMPILER OPTION(S)  : -c -g -qreport -qfixed -q64 -O3
  !*     -qsmp
  !*  OS OPTION(S)        : None
  !*  OS LEVEL            : AIX5L
  !*  COMPILER LEVEL      : XLF 7.1.1.4 and 8.1.0.2
  !*  MACHINE TYPE/MODEL  :
  !*
  !*  DESCRIPTION :  I think there are two issues that should be
  !*  dealt in separate defects with a customer reported PMR.
  !*
  !*  Same test case:
  !*  1) with -O3.
  !*  2) without the -O3
  !*
  !*
  !*  In this defect, we will address the first issue.
  !*
  !*  Customer is hitting a signal 11, internal compiler error
  with
  !*  the -O3 option. The compile seems to be ICEing at the IPA
  !*  -comp step.
  !*
  !*  $  -F/orbit/xlf.v8r1/deliver/xlf.cfg51 -c -g -qreport
  -qfixed -O3 -q64 -qsmp *
  !*  exec:
  /orbit/xlf.v8r1/deliver/bin/xlfentry(/orbit/xlf.v8r1/deliver/bin
  /xlfentry,shi_squ.f,/tmp/F88T24Mb,/tmp/
  !*
  F88T24MbF.lst,xlfsmsg.cat,xlfmsg.cat,shi_squ.f,64(largetype),FRE
  E(f90),THREADED,NOLM,DBG,REPORT,FIXED,OPT(3),64,SMP,
  !*
  WSTREAMS(/tmp/F88T24Mah1,/tmp/F88T24Mab1,/tmp/F88T24Mas1),DEFMSG
  (/orbit/xlf.v8r1/deliver/bin/default_msg),DEBUG(TPO),
  !*
  DEBUG(NTRANS,ASTI),-I/orbit/xlf.v8r1/deliver/include_64ldt,NULL)
  !*  ** guess_il   === End of Compilation 1 ===
  !*  exec:
  /orbit/xlf.v8r1/deliver/bin/xlfhot(/orbit/xlf.v8r1/deliver/bin/x
  lfhot,/tmp/F88T24Mah1,/tmp/F88T24Mah2,
  !*
  /tmp/F88T24Mab1,/tmp/F88T24Mab2,/tmp/F88T24Mas1,/tmp/F88T24Mas2,
  /tmp/F88T24Mb,/tmp/F88T24MbA.lst,NULL)
  !*  exec:
  /orbit/xlf.v8r1/deliver/bin/ipa(/orbit/xlf.v8r1/deliver/bin/ipa,
  -comp,-qfree=f90,-qthreaded,-qreport,
  !*
  -qfixed,-qsmp,-v,/tmp/F88T24Mah2,/tmp/F88T24Mab2,shi_squ.o,/tmp/
  F88T24MbT.lst,/tmp/F88T24Mas2,NULL)
  !*  Calling signal handler...
  !*  1586-494 (U) INTERNAL COMPILER ERROR: Signal 11.
  !*  1501-511  Compilation failed for file shi_squ.f.
  !*
  !*
  !*  Here's the trace back information:
  !*
  !*  $ /orbit/xlf.v8r1/deliver/bin/xlf95_r
  -F/orbit/xlf.v8r1/deliver/xlf.cfg51 -c -g -qreport -qfixed
  !*  -q64 -O3 -qsmp shi_squ.f
  !*  ** guess_il   === End of Compilation 1 ===
  !*  Calling signal handler...
  !*    Trap encountered in IPA:
  !*    SIGSEGV - Segmentation violation
  !*
  !*    Traceback:
  !*
  !*    Offset 0x00000098 in strlen
  !*    Offset 0x000003b4 in
  OptimizationReport::EmitReportMessages(Procedure&) const
  !*    Offset 0x00003674 in
  CompilationInstance::Optimize(unsigned char)
  !*    Offset 0x000004c0 in InvokePass1(int,char**)
  !*    Offset 0x0000008c in main
  !*
  !*    --- End of call chain ---
  !*  1586-494 (U) INTERNAL COMPILER ERROR: Signal 11.
  !*  1501-511  Compilation failed for file shi_squ.f.
  !*
  !*  It looks like the compiler is failing when it is trying to
  !*  issue some sort of messages. I tried reducing the test case
  !*  but it is very sensitive to changes. I started hitting
  !*  different errors when I tried reducing the code.
  !*************************************************************
  !
  !  TEST CASE: shi_squ.f
  !
  ! -----------------------------------------------------------
  !
  !  OUTPUT RECEIVED USING 7.1.1.04 and 8.1.0.03:
  !
  ! $ /orbit/xlf.v8r1/deliver/bin/xlf95_r
  -F/orbit/xlf.v8r1/deliver/xlf.cfg51 -c >
  ! ** guess_il   === End of Compilation 1 ===
  ! Calling signal handler...
  ! 1586-494 (U) INTERNAL COMPILER ERROR: Signal 11.
  ! 1501-511  Compilation failed for file shi_squ.f.
  !
  ! -----------------------------------------------------------
  !
  !  EXPECTED OUTPUT:
  !
  !  Clean compile.
  ! ---------------------------- EOF --------------------------
  

Local fix

• Don't compile with -O3
  

Problem summary

•  Same as submitter's text.
  

Problem conclusion

•  Development has fixed the internal compiler
  error, signal 11 problem. The error no longer exist when
  compiling the test case with the fix.
  

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:

  IY44056

Fix information

• Fixed component name

  XL FORTRAN AIX

• Fixed component ID

  5765F7000

Applicable component levels