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* [Bug fortran/103718] New: [11/12 Regression] ICE in doloop_contained_procedure_code, at fortran/frontend-passes.c:2393
@ 2021-12-14 18:13 gscfq@t-online.de
2021-12-14 19:17 ` [Bug fortran/103718] " anlauf at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: gscfq@t-online.de @ 2021-12-14 18:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103718
Bug ID: 103718
Summary: [11/12 Regression] ICE in
doloop_contained_procedure_code, at
fortran/frontend-passes.c:2393
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: gscfq@t-online.de
Target Milestone: ---
Changed between 20200726 and 20200809 :
(gcc configured with --enable-checking=yes)
$ cat z1.f90
program p
integer :: i
do i = 1, 2
call s
end do
contains
subroutine s
shape(1) = 0
end
end
$ cat z3.f90
program p
integer :: i
do i = 1, 2
call s
end do
contains
subroutine s
real(1) = 0
end
end
$ gfortran-12-20211212 -c z1.f90
z1.f90:8:6:
8 | shape(1) = 0
| 1
Error: Non-variable expression in variable definition context (assignment) at
(1)
f951: internal compiler error: Segmentation fault
0xf12d1f crash_signal
../../gcc/toplev.c:322
0x950019 doloop_contained_procedure_code
../../gcc/fortran/frontend-passes.c:2393
0x955909 gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*, void*), int
(*)(gfc_expr**, int*, void*), void*)
../../gcc/fortran/frontend-passes.c:5337
0x957e72 doloop_code
../../gcc/fortran/frontend-passes.c:2627
0x955909 gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*, void*), int
(*)(gfc_expr**, int*, void*), void*)
../../gcc/fortran/frontend-passes.c:5337
0x955a87 gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*, void*), int
(*)(gfc_expr**, int*, void*), void*)
../../gcc/fortran/frontend-passes.c:5673
0x956afb doloop_warn
../../gcc/fortran/frontend-passes.c:3063
0x95704a gfc_run_passes(gfc_namespace*)
../../gcc/fortran/frontend-passes.c:156
0x857657 gfc_resolve(gfc_namespace*)
../../gcc/fortran/resolve.c:17573
0x83f954 resolve_all_program_units
../../gcc/fortran/parse.c:6586
0x83f954 gfc_parse_file()
../../gcc/fortran/parse.c:6842
0x88db0f gfc_be_parse_file
../../gcc/fortran/f95-lang.c:216
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/103718] [11/12 Regression] ICE in doloop_contained_procedure_code, at fortran/frontend-passes.c:2393
2021-12-14 18:13 [Bug fortran/103718] New: [11/12 Regression] ICE in doloop_contained_procedure_code, at fortran/frontend-passes.c:2393 gscfq@t-online.de
@ 2021-12-14 19:17 ` anlauf at gcc dot gnu.org
2021-12-14 20:09 ` anlauf at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: anlauf at gcc dot gnu.org @ 2021-12-14 19:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103718
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P4
CC| |anlauf at gcc dot gnu.org
Last reconfirmed| |2021-12-14
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Target Milestone|--- |11.4
--- Comment #1 from anlauf at gcc dot gnu.org ---
Patch for NULL pointer dereference:
diff --git a/gcc/fortran/frontend-passes.c b/gcc/fortran/frontend-passes.c
index 57b24a11cbe..8836b40be43 100644
--- a/gcc/fortran/frontend-passes.c
+++ b/gcc/fortran/frontend-passes.c
@@ -2390,7 +2390,7 @@ doloop_contained_procedure_code (gfc_code **c,
switch (co->op)
{
case EXEC_ASSIGN:
- if (co->expr1->symtree->n.sym == do_var)
+ if (co->expr1->symtree && co->expr1->symtree->n.sym == do_var)
gfc_error_now (errmsg, do_var->name, &co->loc, info->procedure->name,
&info->where_do);
break;
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/103718] [11/12 Regression] ICE in doloop_contained_procedure_code, at fortran/frontend-passes.c:2393
2021-12-14 18:13 [Bug fortran/103718] New: [11/12 Regression] ICE in doloop_contained_procedure_code, at fortran/frontend-passes.c:2393 gscfq@t-online.de
2021-12-14 19:17 ` [Bug fortran/103718] " anlauf at gcc dot gnu.org
@ 2021-12-14 20:09 ` anlauf at gcc dot gnu.org
2021-12-14 20:14 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: anlauf at gcc dot gnu.org @ 2021-12-14 20:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103718
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |anlauf at gcc dot gnu.org
Status|NEW |ASSIGNED
--- Comment #2 from anlauf at gcc dot gnu.org ---
Submitted: https://gcc.gnu.org/pipermail/fortran/2021-December/057172.html
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/103718] [11/12 Regression] ICE in doloop_contained_procedure_code, at fortran/frontend-passes.c:2393
2021-12-14 18:13 [Bug fortran/103718] New: [11/12 Regression] ICE in doloop_contained_procedure_code, at fortran/frontend-passes.c:2393 gscfq@t-online.de
2021-12-14 19:17 ` [Bug fortran/103718] " anlauf at gcc dot gnu.org
2021-12-14 20:09 ` anlauf at gcc dot gnu.org
@ 2021-12-14 20:14 ` cvs-commit at gcc dot gnu.org
2021-12-15 19:35 ` cvs-commit at gcc dot gnu.org
2021-12-15 19:38 ` anlauf at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-12-14 20:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103718
--- Comment #3 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:e866e1c92ecf88feeeafd5d55348451c9a181f3c
commit r12-5967-ge866e1c92ecf88feeeafd5d55348451c9a181f3c
Author: Harald Anlauf <anlauf@gmx.de>
Date: Tue Dec 14 21:02:04 2021 +0100
Fortran: prevent NULL pointer dereferences checking do-loop contained stuff
gcc/fortran/ChangeLog:
PR fortran/103718
PR fortran/103719
* frontend-passes.c (doloop_contained_procedure_code): Add several
checks to prevent NULL pointer dereferences on valid and invalid
code called within do-loops.
gcc/testsuite/ChangeLog:
PR fortran/103718
PR fortran/103719
* gfortran.dg/do_check_18.f90: New test.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/103718] [11/12 Regression] ICE in doloop_contained_procedure_code, at fortran/frontend-passes.c:2393
2021-12-14 18:13 [Bug fortran/103718] New: [11/12 Regression] ICE in doloop_contained_procedure_code, at fortran/frontend-passes.c:2393 gscfq@t-online.de
` (2 preceding siblings ...)
2021-12-14 20:14 ` cvs-commit at gcc dot gnu.org
@ 2021-12-15 19:35 ` cvs-commit at gcc dot gnu.org
2021-12-15 19:38 ` anlauf at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-12-15 19:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103718
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Harald Anlauf
<anlauf@gcc.gnu.org>:
https://gcc.gnu.org/g:689f8fed9b2a250e6cbeeec4fa882b8afd34eec8
commit r11-9385-g689f8fed9b2a250e6cbeeec4fa882b8afd34eec8
Author: Harald Anlauf <anlauf@gmx.de>
Date: Tue Dec 14 21:02:04 2021 +0100
Fortran: prevent NULL pointer dereferences checking do-loop contained stuff
gcc/fortran/ChangeLog:
PR fortran/103718
PR fortran/103719
* frontend-passes.c (doloop_contained_procedure_code): Add several
checks to prevent NULL pointer dereferences on valid and invalid
code called within do-loops.
gcc/testsuite/ChangeLog:
PR fortran/103718
PR fortran/103719
* gfortran.dg/do_check_18.f90: New test.
(cherry picked from commit e866e1c92ecf88feeeafd5d55348451c9a181f3c)
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/103718] [11/12 Regression] ICE in doloop_contained_procedure_code, at fortran/frontend-passes.c:2393
2021-12-14 18:13 [Bug fortran/103718] New: [11/12 Regression] ICE in doloop_contained_procedure_code, at fortran/frontend-passes.c:2393 gscfq@t-online.de
` (3 preceding siblings ...)
2021-12-15 19:35 ` cvs-commit at gcc dot gnu.org
@ 2021-12-15 19:38 ` anlauf at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: anlauf at gcc dot gnu.org @ 2021-12-15 19:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103718
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #5 from anlauf at gcc dot gnu.org ---
Fixed.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2021-12-14 18:13 [Bug fortran/103718] New: [11/12 Regression] ICE in doloop_contained_procedure_code, at fortran/frontend-passes.c:2393 gscfq@t-online.de
2021-12-14 19:17 ` [Bug fortran/103718] " anlauf at gcc dot gnu.org
2021-12-14 20:09 ` anlauf at gcc dot gnu.org
2021-12-14 20:14 ` cvs-commit at gcc dot gnu.org
2021-12-15 19:35 ` cvs-commit at gcc dot gnu.org
2021-12-15 19:38 ` anlauf at gcc dot gnu.org
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