[Bug fortran/66724] New: ICE on input/output statements with wrong specifier data
gerhard.steinmetz.fortran@t-online.de
gcc-bugzilla@gcc.gnu.org
Wed Jul 1 16:23:00 GMT 2015
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66724
Bug ID: 66724
Summary: ICE on input/output statements with wrong specifier
data
Product: gcc
Version: 5.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: gerhard.steinmetz.fortran@t-online.de
Target Milestone: ---
For most input/output statements and for several specifiers
compilation aborts if assigned specifier key is not changeable
(is a constant) and/or is of wrong data type etc.
Several combinations are causing a segfault, some examples :
$ cat z_iostmt_iomsg_1.f90
program p
backspace (1, iomsg=1)
close (1, iomsg=1)
endfile (1, iomsg=1)
flush (1, iomsg=1)
inquire (1, iomsg=1)
open (1, iomsg=1)
read (1, iomsg=1)
rewind (1, iomsg=1)
wait (1, iomsg=1)
write (1, iomsg=1)
end
$ cat z_open_iomsg.f90
program p
open (1, iomsg=1)
open (1, iomsg=1e1)
open (1, iomsg=1d1)
open (1, iomsg='no')
open (1, iomsg='')
open (1, iomsg=.true.)
open (1, iomsg=[1])
open (1, iomsg=[''])
! ...
end
# analogous if "open" replaced with some other io-stmt
$ cat z_open_specifier.f90
program p
open (1, access=.false.)
open (1, action=.false.)
open (1, asynchronous=.false.)
open (1, blank=.false.)
open (1, decimal=.false.)
open (1, delim=.false.)
open (1, encoding=.false.)
open (1, form=.false.)
open (1, pad=.false.)
open (1, position=.false.)
open (1, round=.false.)
open (1, sign=.false.)
open (1, status=.false.)
end
# analogous if "open" replaced with some other io-stmt
$ cat z_write_asynchronous.f90
program p
write (1, asynchronous=1e1)
write (1, asynchronous=1d1)
write (1, asynchronous=.false.)
write (1, asynchronous=null())
write (1, asynchronous=[1])
write (1, asynchronous=[''])
write (1, asynchronous=['no'])
! ...
end
# analogous if "write" replaced with some other io-stmt
# and several more ...
Yields (with gfortran 5.1.1 on SUSE Linux 13.2, 64 bit)
f951: internal compiler error: Segmentation fault
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