[Bug fortran/69055] Internal compiler error -fsanitize=float-cast-overflow

[kargl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69055

kargl at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kargl at gcc dot gnu.org

--- Comment #1 from kargl at gcc dot gnu.org ---
(In reply to physiker from comment #0)
> Created attachment 37134 [details]
> Source code
> 
> t.f90
>       SUBROUTINE TSTD
> 
>       IMPLICIT NONE
> 
>       INTEGER*4 N
>  
>       COMMON /COMMI/DATEN(10)
> 
>       type T_daten
>       sequence
>          real(8)         daten
>       end type T_daten
> 
>       type(T_daten) :: daten
> 
>       integer(4) ::  j=1
> 
>       N=daten(j)%daten
>  
>       END SUBROUTINE TSTD
> 
> peter@linux:~/devel/build-gcc> LANG=C gfortran-6 -v -save-temps -c t.f90
> -fby GNU C version 6.0.0 20151223 (experimental), GMP version 5.1.3,
> MPFR version 3.1.2, MPC version 1.0.2, isl version none
> GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
> t.f90:18:0:
> 
>        N=daten(j)%daten
>

The code is non-conforming Fortran.  daten(j)%daten is used uninitialized.
gfortan can do anything it wants with the code, including throwing an 
error.

-- 
steve