[Bug fortran/32933] New: ICE in simplify_subreg with -fdefault-integer-8

[tkoenig at gcc dot gnu dot org]

Simplification of the ICE with nan_1.f90:

$ !cat
cat nan_6.f90 
program test
  real :: a
  if (min(a, 3.0, 2.0) /= 2.0) call abort
end program test
$ gfortran -fdefault-integer-8 nan_6.f90 
nan_6.f90: In function 'MAIN__':
nan_6.f90:3: internal compiler error: in simplify_subreg, at
simplify-rtx.c:4676
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

This goes away if -ffast-math is specified, so it looks as if
the call to __builtin_isnan is causing the trouble.


-- 
           Summary: ICE in simplify_subreg with -fdefault-integer-8
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tkoenig at gcc dot gnu dot org
OtherBugsDependingO 32770
             nThis:


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32933