* [Bug fortran/78746] charlen_03, charlen_10 ICE
[not found] <bug-78746-4@http.gcc.gnu.org/bugzilla/>
@ 2020-03-21 14:01 ` dcb314 at hotmail dot com
2021-01-04 22:46 ` anlauf at gcc dot gnu.org
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From: dcb314 at hotmail dot com @ 2020-03-21 14:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
David Binderman <dcb314 at hotmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dcb314 at hotmail dot com
--- Comment #20 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to Arseny Solokha from comment #17)
> Just in case, w/ gcc/testsuite/gfortran.dg/class_61.f90 (as of r268503):
>
> ==20572== Invalid read of size 8
> ==20572== at 0x8150A4: resolve_component(gfc_component*, gfc_symbol*)
> (resolve.c:13809)
> ==20572== by 0x815BB2: resolve_fl_derived0(gfc_symbol*) [clone .part.54]
> (resolve.c:14258)
> ==20572== by 0x8161FF: resolve_fl_derived0 (resolve.c:14357)
> ==20572== by 0x8161FF: resolve_fl_derived(gfc_symbol*) (resolve.c:14387)
I can confirm that I am still seeing this one, over a year later.
Since the code is in error, probably not a high priority.
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug fortran/78746] charlen_03, charlen_10 ICE
[not found] <bug-78746-4@http.gcc.gnu.org/bugzilla/>
2020-03-21 14:01 ` [Bug fortran/78746] charlen_03, charlen_10 ICE dcb314 at hotmail dot com
@ 2021-01-04 22:46 ` anlauf at gcc dot gnu.org
2021-01-05 20:42 ` anlauf at gcc dot gnu.org
` (9 subsequent siblings)
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From: anlauf at gcc dot gnu.org @ 2021-01-04 22:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |anlauf at gcc dot gnu.org
--- Comment #21 from anlauf at gcc dot gnu.org ---
Potential fix:
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c
index fa6f756d285..891db391907 100644
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -14384,7 +14396,7 @@ resolve_component (gfc_component *c, gfc_symbol *sym)
/* F2008, C448. */
if (c->ts.type == BT_CLASS)
{
- if (CLASS_DATA (c))
+ if (c->attr.class_ok && CLASS_DATA (c))
{
attr = &(CLASS_DATA (c)->attr);
At least valgrind is happy with that change.
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug fortran/78746] charlen_03, charlen_10 ICE
[not found] <bug-78746-4@http.gcc.gnu.org/bugzilla/>
2020-03-21 14:01 ` [Bug fortran/78746] charlen_03, charlen_10 ICE dcb314 at hotmail dot com
2021-01-04 22:46 ` anlauf at gcc dot gnu.org
@ 2021-01-05 20:42 ` anlauf at gcc dot gnu.org
2021-01-06 18:37 ` cvs-commit at gcc dot gnu.org
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From: anlauf at gcc dot gnu.org @ 2021-01-05 20:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |anlauf at gcc dot gnu.org
--- Comment #22 from anlauf at gcc dot gnu.org ---
Submitted: https://gcc.gnu.org/pipermail/fortran/2021-January/055551.html
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[not found] <bug-78746-4@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2021-01-05 20:42 ` anlauf at gcc dot gnu.org
@ 2021-01-06 18:37 ` cvs-commit at gcc dot gnu.org
2021-01-07 19:30 ` cvs-commit at gcc dot gnu.org
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From: cvs-commit at gcc dot gnu.org @ 2021-01-06 18:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
--- Comment #23 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:8b6f1e8f97fe0d435d334075821149dbd85c8266
commit r11-6505-g8b6f1e8f97fe0d435d334075821149dbd85c8266
Author: Harald Anlauf <anlauf@gmx.de>
Date: Wed Jan 6 19:37:11 2021 +0100
PR fortran/78746 - invalid access after error recovery
The error recovery after an invalid reference to an undefined CLASS
during a TYPE declaration lead to an invalid access. Add a check.
gcc/fortran/ChangeLog:
* resolve.c (resolve_component): Add check for valid CLASS
reference before trying to access CLASS data.
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug fortran/78746] charlen_03, charlen_10 ICE
[not found] <bug-78746-4@http.gcc.gnu.org/bugzilla/>
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2021-01-06 18:37 ` cvs-commit at gcc dot gnu.org
@ 2021-01-07 19:30 ` cvs-commit at gcc dot gnu.org
2021-01-07 19:33 ` cvs-commit at gcc dot gnu.org
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From: cvs-commit at gcc dot gnu.org @ 2021-01-07 19:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
--- Comment #24 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Harald Anlauf
<anlauf@gcc.gnu.org>:
https://gcc.gnu.org/g:19eb1973321375190485bc49e68992863b1972bf
commit r10-9234-g19eb1973321375190485bc49e68992863b1972bf
Author: Harald Anlauf <anlauf@gmx.de>
Date: Wed Jan 6 19:37:11 2021 +0100
PR fortran/78746 - invalid access after error recovery
The error recovery after an invalid reference to an undefined CLASS
during a TYPE declaration lead to an invalid access. Add a check.
gcc/fortran/ChangeLog:
* resolve.c (resolve_component): Add check for valid CLASS
reference before trying to access CLASS data.
(cherry picked from commit 8b6f1e8f97fe0d435d334075821149dbd85c8266)
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug fortran/78746] charlen_03, charlen_10 ICE
[not found] <bug-78746-4@http.gcc.gnu.org/bugzilla/>
` (4 preceding siblings ...)
2021-01-07 19:30 ` cvs-commit at gcc dot gnu.org
@ 2021-01-07 19:33 ` cvs-commit at gcc dot gnu.org
2021-01-07 19:41 ` anlauf at gcc dot gnu.org
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From: cvs-commit at gcc dot gnu.org @ 2021-01-07 19:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
--- Comment #25 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Harald Anlauf
<anlauf@gcc.gnu.org>:
https://gcc.gnu.org/g:ef7d053ea33cc9abc7fc413213705a16478fefc4
commit r9-9162-gef7d053ea33cc9abc7fc413213705a16478fefc4
Author: Harald Anlauf <anlauf@gmx.de>
Date: Wed Jan 6 19:37:11 2021 +0100
PR fortran/78746 - invalid access after error recovery
The error recovery after an invalid reference to an undefined CLASS
during a TYPE declaration lead to an invalid access. Add a check.
gcc/fortran/ChangeLog:
* resolve.c (resolve_component): Add check for valid CLASS
reference before trying to access CLASS data.
(cherry picked from commit 8b6f1e8f97fe0d435d334075821149dbd85c8266)
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug fortran/78746] charlen_03, charlen_10 ICE
[not found] <bug-78746-4@http.gcc.gnu.org/bugzilla/>
` (5 preceding siblings ...)
2021-01-07 19:33 ` cvs-commit at gcc dot gnu.org
@ 2021-01-07 19:41 ` anlauf at gcc dot gnu.org
2021-01-13 11:35 ` dominiq at lps dot ens.fr
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From: anlauf at gcc dot gnu.org @ 2021-01-07 19:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #26 from anlauf at gcc dot gnu.org ---
Should be fixed on master for gcc-11, and on 10- and 9-branch.
Validated with valgrind that class_61.f90 no longer shows the issue.
Closing.
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug fortran/78746] charlen_03, charlen_10 ICE
[not found] <bug-78746-4@http.gcc.gnu.org/bugzilla/>
` (6 preceding siblings ...)
2021-01-07 19:41 ` anlauf at gcc dot gnu.org
@ 2021-01-13 11:35 ` dominiq at lps dot ens.fr
2021-01-13 15:42 ` anlauf at gcc dot gnu.org
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From: dominiq at lps dot ens.fr @ 2021-01-13 11:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |---
--- Comment #27 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
At revision r11-6550 my instrumented compiler gives:
pr78746.f90:5:40:
5 | character(:), allocatable :: x(n) ! { dg-error "must have a
deferred shape" }
| 1
Error: Allocatable component of structure at (1) must have a deferred shape
=================================================================
==33829==ERROR: AddressSanitizer: heap-use-after-free on address 0x604000000ee8
at pc 0x000100423feb bp 0x7ffeefbfe3b0 sp 0x7ffeefbfe3a8
READ of size 8 at 0x604000000ee8 thread T0
...
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug fortran/78746] charlen_03, charlen_10 ICE
[not found] <bug-78746-4@http.gcc.gnu.org/bugzilla/>
` (7 preceding siblings ...)
2021-01-13 11:35 ` dominiq at lps dot ens.fr
@ 2021-01-13 15:42 ` anlauf at gcc dot gnu.org
2021-01-13 16:12 ` dominiq at lps dot ens.fr
` (2 subsequent siblings)
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From: anlauf at gcc dot gnu.org @ 2021-01-13 15:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |WAITING
--- Comment #28 from anlauf at gcc dot gnu.org ---
(In reply to Dominique d'Humieres from comment #27)
> At revision r11-6550 my instrumented compiler gives:
>
> pr78746.f90:5:40:
>
> 5 | character(:), allocatable :: x(n) ! { dg-error "must have a
> deferred shape" }
> | 1
> Error: Allocatable component of structure at (1) must have a deferred shape
> =================================================================
> ==33829==ERROR: AddressSanitizer: heap-use-after-free on address
> 0x604000000ee8 at pc 0x000100423feb bp 0x7ffeefbfe3b0 sp 0x7ffeefbfe3a8
> READ of size 8 at 0x604000000ee8 thread T0
> ...
There's no testcase named "pr78746.f90" in the testsuite.
Would you please open a new PR with enough information?
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug fortran/78746] charlen_03, charlen_10 ICE
[not found] <bug-78746-4@http.gcc.gnu.org/bugzilla/>
` (8 preceding siblings ...)
2021-01-13 15:42 ` anlauf at gcc dot gnu.org
@ 2021-01-13 16:12 ` dominiq at lps dot ens.fr
2021-01-13 16:34 ` anlauf at gcc dot gnu.org
2021-01-13 20:06 ` anlauf at gcc dot gnu.org
11 siblings, 0 replies; 12+ messages in thread
From: dominiq at lps dot ens.fr @ 2021-01-13 16:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
--- Comment #29 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> There's no testcase named "pr78746.f90" in the testsuite.
Ideed! My prxxxxx.f90 are in the test suite only when they are fixed.
Now my "pr78746.f90" is exactly charlen_03.f90.
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug fortran/78746] charlen_03, charlen_10 ICE
[not found] <bug-78746-4@http.gcc.gnu.org/bugzilla/>
` (9 preceding siblings ...)
2021-01-13 16:12 ` dominiq at lps dot ens.fr
@ 2021-01-13 16:34 ` anlauf at gcc dot gnu.org
2021-01-13 20:06 ` anlauf at gcc dot gnu.org
11 siblings, 0 replies; 12+ messages in thread
From: anlauf at gcc dot gnu.org @ 2021-01-13 16:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
--- Comment #30 from anlauf at gcc dot gnu.org ---
(In reply to Dominique d'Humieres from comment #29)
> > There's no testcase named "pr78746.f90" in the testsuite.
>
> Ideed! My prxxxxx.f90 are in the test suite only when they are fixed.
>
> Now my "pr78746.f90" is exactly charlen_03.f90.
... which was removed by Steve.
We're running in circles, so please open a new pr.
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug fortran/78746] charlen_03, charlen_10 ICE
[not found] <bug-78746-4@http.gcc.gnu.org/bugzilla/>
` (10 preceding siblings ...)
2021-01-13 16:34 ` anlauf at gcc dot gnu.org
@ 2021-01-13 20:06 ` anlauf at gcc dot gnu.org
11 siblings, 0 replies; 12+ messages in thread
From: anlauf at gcc dot gnu.org @ 2021-01-13 20:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78746
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |FIXED
--- Comment #31 from anlauf at gcc dot gnu.org ---
The valgrind issues with error-recovery with charlen_03 has been moved to
PR98661, and there is no longer an ICE as reported here.
To avoid further cluttering of the present PR, please add further comments
there.
^ permalink raw reply [flat|nested] 12+ messages in thread