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* [Bug fortran/107423] New: ICE in parse_spec, at fortran/parse.cc:4017
@ 2022-10-26 18:35 gscfq@t-online.de
2022-10-27 0:10 ` [Bug fortran/107423] " kargl at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: gscfq@t-online.de @ 2022-10-26 18:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107423
Bug ID: 107423
Summary: ICE in parse_spec, at fortran/parse.cc:4017
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: gscfq@t-online.de
Target Milestone: ---
Affects versions down to r8 with option -std=f95
and file gfortran.dg/pdt_12.f03 or this reduction :
$ cat z1.f90
program p
type t(k)
integer, kind :: k
integer :: a
end type
contains
function f()
type(t(4)), allocatable :: x
allocate (t(4) :: x)
end
end
$ gfortran-13-20221023 -c z1.f90
$
$ gfortran-13-20221023 -c z1.f90 -std=f95
z1.f90:3:23:
3 | integer, kind :: k
| 1
Error: Fortran 2003: KIND attribute at (1) in a TYPE definition
z1.f90:8:15:
8 | type(t(4)), allocatable :: x
| 1
Error: Invalid character in name at (1)
z1.f90:9:18:
9 | allocate (t(4) :: x)
| 1
Error: Derived type 't' cannot be used as a variable at (1)
z1.f90:10:6:
10 | end
| 1
Error: Fortran 2008: END statement instead of END FUNCTION statement at (1)
z1.f90:11:3:
11 | end
| 1
Error: Fortran 2008: END statement instead of END FUNCTION statement at (1)
f951: internal compiler error: Segmentation fault
0xf43b3f crash_signal
../../gcc/toplev.cc:314
0x85c4de parse_spec
../../gcc/fortran/parse.cc:4017
0x85ea5c parse_progunit
../../gcc/fortran/parse.cc:6237
0x85ee41 parse_contained
../../gcc/fortran/parse.cc:6138
0x85ece6 parse_progunit
../../gcc/fortran/parse.cc:6309
0x860121 gfc_parse_file()
../../gcc/fortran/parse.cc:6782
0x8aec0f gfc_be_parse_file
../../gcc/fortran/f95-lang.cc:229
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/107423] ICE in parse_spec, at fortran/parse.cc:4017
2022-10-26 18:35 [Bug fortran/107423] New: ICE in parse_spec, at fortran/parse.cc:4017 gscfq@t-online.de
@ 2022-10-27 0:10 ` kargl at gcc dot gnu.org
2022-12-13 18:09 ` cvs-commit at gcc dot gnu.org
2022-12-13 21:16 ` anlauf at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: kargl at gcc dot gnu.org @ 2022-10-27 0:10 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107423
kargl at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2022-10-27
Status|UNCONFIRMED |NEW
Priority|P3 |P4
Ever confirmed|0 |1
Keywords|ice-on-valid-code |ice-on-invalid-code
CC| |kargl at gcc dot gnu.org
--- Comment #1 from kargl at gcc dot gnu.org ---
It is actually an ICE on invalid code as type-params were added in F2008 or
F2018. This is an ICE caused by run-on errors where a NULL pointer is
dereferenced. Fixed by
diff --git a/gcc/fortran/parse.cc b/gcc/fortran/parse.cc
index 5b13441912a..25b987c7bef 100644
--- a/gcc/fortran/parse.cc
+++ b/gcc/fortran/parse.cc
@@ -3994,7 +3994,7 @@ parse_spec (gfc_statement st)
gfc_symbol* proc = gfc_current_ns->proc_name;
gcc_assert (proc);
- if (proc->result->ts.type == BT_UNKNOWN)
+ if (proc->result && proc->result->ts.type == BT_UNKNOWN)
function_result_typed = true;
}
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/107423] ICE in parse_spec, at fortran/parse.cc:4017
2022-10-26 18:35 [Bug fortran/107423] New: ICE in parse_spec, at fortran/parse.cc:4017 gscfq@t-online.de
2022-10-27 0:10 ` [Bug fortran/107423] " kargl at gcc dot gnu.org
@ 2022-12-13 18:09 ` cvs-commit at gcc dot gnu.org
2022-12-13 21:16 ` anlauf at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-12-13 18:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107423
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Harald Anlauf <anlauf@gcc.gnu.org>:
https://gcc.gnu.org/g:531ca06c007d4c4d156637083dcad7f25ac8713d
commit r13-4681-g531ca06c007d4c4d156637083dcad7f25ac8713d
Author: Steve Kargl <kargl@gcc.gnu.org>
Date: Mon Dec 12 21:11:07 2022 +0100
Fortran: NULL pointer dereference while parsing a function [PR107423]
gcc/fortran/ChangeLog:
PR fortran/107423
* parse.cc (parse_spec): Avoid NULL pointer dereference when
parsing
a function and an error occured.
gcc/testsuite/ChangeLog:
PR fortran/107423
* gfortran.dg/pr107423.f90: New test.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/107423] ICE in parse_spec, at fortran/parse.cc:4017
2022-10-26 18:35 [Bug fortran/107423] New: ICE in parse_spec, at fortran/parse.cc:4017 gscfq@t-online.de
2022-10-27 0:10 ` [Bug fortran/107423] " kargl at gcc dot gnu.org
2022-12-13 18:09 ` cvs-commit at gcc dot gnu.org
@ 2022-12-13 21:16 ` anlauf at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: anlauf at gcc dot gnu.org @ 2022-12-13 21:16 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107423
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |anlauf at gcc dot gnu.org
Status|NEW |RESOLVED
Target Milestone|--- |13.0
Resolution|--- |FIXED
--- Comment #3 from anlauf at gcc dot gnu.org ---
Fixed on mainline for gcc-13. Closing.
Thanks for the report!
^ permalink raw reply [flat|nested] 4+ messages in thread
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2022-10-26 18:35 [Bug fortran/107423] New: ICE in parse_spec, at fortran/parse.cc:4017 gscfq@t-online.de
2022-10-27 0:10 ` [Bug fortran/107423] " kargl at gcc dot gnu.org
2022-12-13 18:09 ` cvs-commit at gcc dot gnu.org
2022-12-13 21:16 ` anlauf at gcc dot gnu.org
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