[Bug fortran/78054] gfortran.dg/pr70673.f90 FAILs at -O0
kargl at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Apr 26 17:03:59 GMT 2022
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78054
kargl at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kargl at gcc dot gnu.org
--- Comment #4 from kargl at gcc dot gnu.org ---
(In reply to Hans-Peter Nilsson from comment #3)
> Now also failing execution at -O0 on cris-elf and apparently
> s390x-ibm-linux-gnu since r12-8227-g89ca0fffa48b79.
The code is clearly invalid Fortran.
module m
contains
subroutine s(inp)
character(*), intent(in) :: inp
character(:), allocatable :: a
a = a ! This used to ICE.
!
! The above is an invalid reference of an unallocated allocatable on
! the RHS.
!
a = inp
a = a ! This used to ICE too
if ((len (a) .ne. 5) .or. (a .ne. "hello")) STOP 1
a = a(2:3) ! Make sure that temporary creation is not broken.
if ((len (a) .ne. 2) .or. (a .ne. "el")) STOP 2
deallocate (a)
a = a ! This would ICE too.
!
! The above is an invalid reference of an unallocated allocatable on
! the RHS.
!
end subroutine s
end module m
use m
call s("hello")
end
You either need to remove the above two lines to get a valid program
or remove the testcase as it's testing processor dependent behavior.
More information about the Gcc-bugs
mailing list