The clisot fortran subroutine from the arical.f fortran sourcefile of xplor-nih
2.22 triggers an internal compiler error of the form...

testcase.f: In function ‘clisot’:
testcase.f:3: internal compiler error: in copy_to_mode_reg, at explow.c:623

when the testcase is compiled with...

gfortran -c testcase.f -O2 -fPIC -m64 -fdefault-integer-8 -m64
-ftree-loop-linear -ffixed-line-length-120 -fno-second-underscore

The ICE is suppressed if the -ftree-loop-linear option is removed from the
compile line. The ICE also doesn't occur with -ftree-loop-linear  at -m32.


-- 
           Summary: internal compiler error: in copy_to_mode_reg, at
                    explow.c:623
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: howarth at nitro dot med dot uc dot edu
 GCC build triplet: i686-apple-darwin10
  GCC host triplet: i686-apple-darwin10
GCC target triplet: i686-apple-darwin10


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39516

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