https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88249
Bug ID: 88249
Summary: ICE in gfc_resolve_filepos, at fortran/io.c:2853
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
With a missing file-unit-number, down to at least gcc-5 :
$ cat z1.f90
program p
backspace (err=1)
endfile (err=1)
flush (err=1)
rewind (err=1)
end
$ gfortran-9-20181125 -c z1.f90
f951: internal compiler error: Segmentation fault
0xb2bcff crash_signal
../../gcc/toplev.c:326
0x63f696 gfc_resolve_filepos(gfc_filepos*)
../../gcc/fortran/io.c:2853
0x6850ab gfc_resolve_code(gfc_code*, gfc_namespace*)
../../gcc/fortran/resolve.c:11547
0x68702f resolve_codes
../../gcc/fortran/resolve.c:16704
0x6870fe gfc_resolve(gfc_namespace*)
../../gcc/fortran/resolve.c:16739
0x674e87 resolve_all_program_units
../../gcc/fortran/parse.c:6064
0x674e87 gfc_parse_file()
../../gcc/fortran/parse.c:6314
0x6bdaff gfc_be_parse_file
../../gcc/fortran/f95-lang.c:204
