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* [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
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