LI75922: -QCHECK (-C) RESULTS IN COMPILER FAILURE

January 2012 Update for XL Fortran for Linux, V12.1
January 2011 Update for XL Fortran for Linux, V12.1
June 2011 Update for XL Fortran for Linux, V12.1
XL Fortran for Linux Fix Pack 8 (January 2014 Update) for 12.1

APAR status

• Closed as program error.

Error description

• The use of the compiler option -qcheck (-C) causes compilation
  to abort when invoking the xlf95_r compiler.
  
  The following output is produced.
  
     === End of Compilation 1 ===
  
  EXCEPTION terminates program: no handler for exception.
  Exception of type: UNDIAGNOSED at 1007A6F8.  Regs:
  00000005 FFCB7630 F7FD1470 00000220 000001A8 00000001 10131A78
  101D54E8
  1021507C 00000000 10229E98 00000090 24004424 101931A4 00000023
  00000023
  101E5A78 00000000 00000000 101D0000 10190000 00000001 FFCB7778
  10190000
  10190000 00000000 101DA734 00000000 00000000 101DAE40 10190000
  101D8510
  resume:  cr:      lr:      ctr:     xer:     fpscr:   msr:
  mq:
  1007A6FC 44004428 100C4000 00000000 20000010 00000000 0000D032
  00450CB0
  Traceback:
  Line     ? Disp 1007A6F8   ScConformabilityCheck            Dsa:
  FFCB7630
  Line     ? Disp 100C3FFC   ProcessExpr                      Dsa:
  FFCB76B0
  Line     ? Disp 100C56F4   ScProcessExpr                    Dsa:
  FFCB7770
  Line     ? Disp 10081FA4   ScProcessStmt                    Dsa:
  FFCB77C0
  Line     ? Disp 10062C2C   StmtWalk                         Dsa:
  FFCB7820
  Line     ? Disp 10062CA0   StmtWalk                         Dsa:
  FFCB7880
  Line     ? Disp 1007B2CC   Scalarizer                       Dsa:
  FFCB78E0
  Line     ? Disp 10056370   astidrvr                         Dsa:
  FFCB7940
  Line     ? Disp 1000241C   main                             Dsa:
  FFCB7990
  Line     ? Disp 0FC5B8AC   generic_start_main               Dsa:
  FFCB7A20
  --- End of call chain ---
  1501-511  Compilation failed for file grp_k_sr.F.
  

Local fix

• N/A
  

Problem summary

• The compiler option -qcheck causes a compiler error while
  performing conformability check.
  
  Users with -qcheck (-C) who are passing f90 pointer or
  allocatable to routines that are multidimensional deferred
  shape are affected by this problem. These rountines are then
  passed to a routine that is a candidate for inline
  conformability checks, such that they require a compiler
  temporary.
  

Problem conclusion

• Enable a more conservative codepath that does not attempt a
  static determination when a particular set of preconditions
  occur.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  LI75545

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  XL FORTRAN RHEL

• Fixed component ID

  5724U8410

Applicable component levels

• RC10 PSN LI75545

     UP06/09/13