public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug fortran/101917] New: Spurious -Wstringop-overread with -flto when passing zero sized arrays
@ 2021-08-15 8:40 rimvydas.jas at gmail dot com
2021-11-10 4:48 ` [Bug middle-end/101917] [11 Regression] " msebor at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: rimvydas.jas at gmail dot com @ 2021-08-15 8:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101917
Bug ID: 101917
Summary: Spurious -Wstringop-overread with -flto when passing
zero sized arrays
Product: gcc
Version: 11.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: rimvydas.jas at gmail dot com
Target Milestone: ---
$ cat bar.c
void bar_(const int flag[], const int *num) { }
$ cat foo.f90
program foo
integer :: idummy(0)
call bar(idummy, 0)
end program
$ gcc -flto -c bar.c
$ gfortran -Wall -Wextra -flto -c foo.f90
$ gfortran -Wall -Wextra -flto foo.o bar.o
foo.f90: In function 'foo':
foo.f90:3:19: warning: 'bar_' reading 4 bytes from a region of size 0
[-Wstringop-overread]
3 | call bar(idummy, 0)
| ^
foo.f90:3:19: note: referencing argument 1 of type 'const int *'
bar.c:1:6: note: in a call to function 'bar_'
1 | void bar_(const int flag[], const int *num) { }
| ^
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/101917] [11 Regression] Spurious -Wstringop-overread with -flto when passing zero sized arrays
2021-08-15 8:40 [Bug fortran/101917] New: Spurious -Wstringop-overread with -flto when passing zero sized arrays rimvydas.jas at gmail dot com
@ 2021-11-10 4:48 ` msebor at gcc dot gnu.org
2021-11-16 13:08 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: msebor at gcc dot gnu.org @ 2021-11-10 4:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101917
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Component|fortran |middle-end
Summary|Spurious |[11 Regression] Spurious
|-Wstringop-overread with |-Wstringop-overread with
|-flto when passing zero |-flto when passing zero
|sized arrays |sized arrays
Ever confirmed|0 |1
Known to fail| |11.2.0
Blocks| |97048
Last reconfirmed| |2021-11-10
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=103145
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
Confirmed with GCC 11, but fixed in GCC 12. Most likely a duplicate of
pr103145.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97048
[Bug 97048] [meta-bug] bogus/missing -Wstringop-overread warnings
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/101917] [11 Regression] Spurious -Wstringop-overread with -flto when passing zero sized arrays
2021-08-15 8:40 [Bug fortran/101917] New: Spurious -Wstringop-overread with -flto when passing zero sized arrays rimvydas.jas at gmail dot com
2021-11-10 4:48 ` [Bug middle-end/101917] [11 Regression] " msebor at gcc dot gnu.org
@ 2021-11-16 13:08 ` rguenth at gcc dot gnu.org
2022-04-21 7:50 ` rguenth at gcc dot gnu.org
2023-05-29 10:05 ` jakub at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-11-16 13:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101917
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |11.3
Priority|P3 |P2
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/101917] [11 Regression] Spurious -Wstringop-overread with -flto when passing zero sized arrays
2021-08-15 8:40 [Bug fortran/101917] New: Spurious -Wstringop-overread with -flto when passing zero sized arrays rimvydas.jas at gmail dot com
2021-11-10 4:48 ` [Bug middle-end/101917] [11 Regression] " msebor at gcc dot gnu.org
2021-11-16 13:08 ` rguenth at gcc dot gnu.org
@ 2022-04-21 7:50 ` rguenth at gcc dot gnu.org
2023-05-29 10:05 ` jakub at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-04-21 7:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101917
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|11.3 |11.4
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 11.3 is being released, retargeting bugs to GCC 11.4.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/101917] [11 Regression] Spurious -Wstringop-overread with -flto when passing zero sized arrays
2021-08-15 8:40 [Bug fortran/101917] New: Spurious -Wstringop-overread with -flto when passing zero sized arrays rimvydas.jas at gmail dot com
` (2 preceding siblings ...)
2022-04-21 7:50 ` rguenth at gcc dot gnu.org
@ 2023-05-29 10:05 ` jakub at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2023-05-29 10:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101917
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|11.4 |11.5
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 11.4 is being released, retargeting bugs to GCC 11.5.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2023-05-29 10:05 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-08-15 8:40 [Bug fortran/101917] New: Spurious -Wstringop-overread with -flto when passing zero sized arrays rimvydas.jas at gmail dot com
2021-11-10 4:48 ` [Bug middle-end/101917] [11 Regression] " msebor at gcc dot gnu.org
2021-11-16 13:08 ` rguenth at gcc dot gnu.org
2022-04-21 7:50 ` rguenth at gcc dot gnu.org
2023-05-29 10:05 ` jakub at gcc dot gnu.org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).