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* [Bug target/108673] New: ICE with -fstack-clash-protection and noreturn attribute on x86_64-w64-mingw32
@ 2023-02-04 13:03 lh_mouse at 126 dot com
2023-02-04 15:49 ` [Bug target/108673] " franke at computer dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: lh_mouse at 126 dot com @ 2023-02-04 13:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108673
Bug ID: 108673
Summary: ICE with -fstack-clash-protection and noreturn
attribute on x86_64-w64-mingw32
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: lh_mouse at 126 dot com
Target Milestone: ---
Original reported by Théo Cavignac here:
https://sourceforge.net/p/mingw-w64/mailman/message/37773946/
The ICE is only reproducible on x86_64-w64-mingw32, not on i686-w64-mingw32.
Original testcase follows:
```
/*
/usr/bin/x86_64-w64-mingw32-gcc \
-O2 -fstack-clash-protection -c \
-freport-bug \
-o f.o f.c
*/
void exit(int) __attribute__((noreturn));
void foo(int p) {
exit(p);
}
```
```
# gcc -O2 -fstack-clash-protection f.c
during RTL pass: final
f.c: In function 'foo':
f.c:11:4: internal compiler error: in seh_emit_stackalloc, at
config/i386/winnt.cc:1055
11 | }
| ^
libbacktrace could not find executable to open
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
See <https://github.com/lhmouse/MINGW-packages/issues> for instructions.
```
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/108673] ICE with -fstack-clash-protection and noreturn attribute on x86_64-w64-mingw32
2023-02-04 13:03 [Bug target/108673] New: ICE with -fstack-clash-protection and noreturn attribute on x86_64-w64-mingw32 lh_mouse at 126 dot com
@ 2023-02-04 15:49 ` franke at computer dot org
2023-02-04 20:22 ` pinskia at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: franke at computer dot org @ 2023-02-04 15:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108673
Christian Franke <franke at computer dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |franke at computer dot org
--- Comment #1 from Christian Franke <franke at computer dot org> ---
Could also be reproduced with x86_64-pc-cygwin-gcc 11.3.0 and
x86_64-w64-mingw32-gcc 11.3.0 from current Cygwin distribution:
$ gcc -O1 -fstack-clash-protection -S f.c
during RTL pass: final
x.c: In function ‘foo’:
x.c:5:1: internal compiler error: in seh_emit_stackalloc, at
config/i386/winnt.c:1056
5 | }
| ^
...
The error does not occur if -fipa-pure-const ("Discover which functions are
pure or constant") is disabled:
$ gcc -O3 -fno-ipa-pure-const -fstack-clash-protection -S f.c; echo $?
0
Assembly output looks sane then.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/108673] ICE with -fstack-clash-protection and noreturn attribute on x86_64-w64-mingw32
2023-02-04 13:03 [Bug target/108673] New: ICE with -fstack-clash-protection and noreturn attribute on x86_64-w64-mingw32 lh_mouse at 126 dot com
2023-02-04 15:49 ` [Bug target/108673] " franke at computer dot org
@ 2023-02-04 20:22 ` pinskia at gcc dot gnu.org
2023-02-14 17:12 ` amy.mclaughlin at iar dot com
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-02-04 20:22 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108673
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |DUPLICATE
Status|UNCONFIRMED |RESOLVED
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 90458.
*** This bug has been marked as a duplicate of bug 90458 ***
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/108673] ICE with -fstack-clash-protection and noreturn attribute on x86_64-w64-mingw32
2023-02-04 13:03 [Bug target/108673] New: ICE with -fstack-clash-protection and noreturn attribute on x86_64-w64-mingw32 lh_mouse at 126 dot com
2023-02-04 15:49 ` [Bug target/108673] " franke at computer dot org
2023-02-04 20:22 ` pinskia at gcc dot gnu.org
@ 2023-02-14 17:12 ` amy.mclaughlin at iar dot com
2023-02-14 18:01 ` franke at computer dot org
2023-02-14 18:11 ` ebotcazou at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: amy.mclaughlin at iar dot com @ 2023-02-14 17:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108673
amy.mclaughlin at iar dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |amy.mclaughlin at iar dot com
--- Comment #3 from amy.mclaughlin at iar dot com ---
Regarding Comment 1, the bug in Cygwin's gcc (11.3.0) can't be worked around
with `-fno-ipa-pure-const`. The workaround also fails for the msys2 msys build
of gcc (also 11.3.0) but succeeds for the mingw64 build.
So I suspect that the bug reproduced with x86_64-pc-cygwin-gcc may not be the
same bug as the one in this report, despite the similar symptoms.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/108673] ICE with -fstack-clash-protection and noreturn attribute on x86_64-w64-mingw32
2023-02-04 13:03 [Bug target/108673] New: ICE with -fstack-clash-protection and noreturn attribute on x86_64-w64-mingw32 lh_mouse at 126 dot com
` (2 preceding siblings ...)
2023-02-14 17:12 ` amy.mclaughlin at iar dot com
@ 2023-02-14 18:01 ` franke at computer dot org
2023-02-14 18:11 ` ebotcazou at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: franke at computer dot org @ 2023-02-14 18:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108673
--- Comment #4 from Christian Franke <franke at computer dot org> ---
I get similar results with x86_64-pc-cygwin-gcc (aka gcc) 11.3.0 and
x86_64-w64-mingw32-gcc 11.3.0, both from current Cygwin distro and with
x86_64-w64-mingw32-gcc (aka gcc) 12.2.0 from current MSYS2 distro.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/108673] ICE with -fstack-clash-protection and noreturn attribute on x86_64-w64-mingw32
2023-02-04 13:03 [Bug target/108673] New: ICE with -fstack-clash-protection and noreturn attribute on x86_64-w64-mingw32 lh_mouse at 126 dot com
` (3 preceding siblings ...)
2023-02-14 18:01 ` franke at computer dot org
@ 2023-02-14 18:11 ` ebotcazou at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2023-02-14 18:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108673
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ebotcazou at gcc dot gnu.org
--- Comment #5 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
-fstack-clash-protection must simply not be used on Windows, as Windows has had
builtin stack clash protection since the beginning.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2023-02-14 18:11 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2023-02-04 13:03 [Bug target/108673] New: ICE with -fstack-clash-protection and noreturn attribute on x86_64-w64-mingw32 lh_mouse at 126 dot com
2023-02-04 15:49 ` [Bug target/108673] " franke at computer dot org
2023-02-04 20:22 ` pinskia at gcc dot gnu.org
2023-02-14 17:12 ` amy.mclaughlin at iar dot com
2023-02-14 18:01 ` franke at computer dot org
2023-02-14 18:11 ` ebotcazou at gcc dot gnu.org
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