public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug middle-end/35412] Correctness with -ftrapv depended on libcall notes
[not found] <bug-35412-4@http.gcc.gnu.org/bugzilla/>
@ 2023-03-05 14:20 ` ntysdd at qq dot com
2023-03-05 20:03 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 7+ messages in thread
From: ntysdd at qq dot com @ 2023-03-05 14:20 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=35412
dingd <ntysdd at qq dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ntysdd at qq dot com
--- Comment #10 from dingd <ntysdd at qq dot com> ---
I wonder what's the status of this bug. It has been 15 years.
As far as I know, Clang doesn't have this bug, so it should not be impossible
to implement.
And, does -fsantize=undefined really provides the same functionality of this
switch? I have always assumed that santizers are not to be used in production,
right?
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/35412] Correctness with -ftrapv depended on libcall notes
[not found] <bug-35412-4@http.gcc.gnu.org/bugzilla/>
2023-03-05 14:20 ` [Bug middle-end/35412] Correctness with -ftrapv depended on libcall notes ntysdd at qq dot com
@ 2023-03-05 20:03 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-03-05 20:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=35412
--- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to dingd from comment #10)
> I wonder what's the status of this bug. It has been 15 years.
It still is a bug.
>
> As far as I know, Clang doesn't have this bug, so it should not be
> impossible to implement.
Yes clang/LLVM does not have this bug because the internals of them and GCC are
way different.
>
> And, does -fsantize=undefined really provides the same functionality of this
> switch? I have always assumed that santizers are not to be used in
> production, right?
See PR 101521 for some ideas of how to implement this using the same
infrastructure as -fsantize=undefined .
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/35412] Correctness with -ftrapv depended on libcall notes
2008-02-29 23:24 [Bug middle-end/35412] New: Correctness with -ftrapv depends " steven at gcc dot gnu dot org
` (3 preceding siblings ...)
2009-04-14 20:08 ` jv244 at cam dot ac dot uk
@ 2009-05-14 10:55 ` rguenth at gcc dot gnu dot org
4 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-05-14 10:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from rguenth at gcc dot gnu dot org 2009-05-14 10:55 -------
*** Bug 40143 has been marked as a duplicate of this bug. ***
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dickinsm at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35412
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/35412] Correctness with -ftrapv depended on libcall notes
2008-02-29 23:24 [Bug middle-end/35412] New: Correctness with -ftrapv depends " steven at gcc dot gnu dot org
` (2 preceding siblings ...)
2009-04-14 20:00 ` pinskia at gcc dot gnu dot org
@ 2009-04-14 20:08 ` jv244 at cam dot ac dot uk
2009-05-14 10:55 ` rguenth at gcc dot gnu dot org
4 siblings, 0 replies; 7+ messages in thread
From: jv244 at cam dot ac dot uk @ 2009-04-14 20:08 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from jv244 at cam dot ac dot uk 2009-04-14 20:08 -------
I'm reopening this report. -ftrapv is still documented, so can be expected to
work by users.
For the particular problem I have right now, a functional version of this
option would be a great thing to have.
--
jv244 at cam dot ac dot uk changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|SUSPENDED |NEW
Last reconfirmed|2008-02-29 23:33:53 |2009-04-14 20:08:33
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35412
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/35412] Correctness with -ftrapv depended on libcall notes
2008-02-29 23:24 [Bug middle-end/35412] New: Correctness with -ftrapv depends " steven at gcc dot gnu dot org
2008-06-25 11:55 ` [Bug middle-end/35412] Correctness with -ftrapv depended " rguenth at gcc dot gnu dot org
2008-07-04 19:43 ` jsm28 at gcc dot gnu dot org
@ 2009-04-14 20:00 ` pinskia at gcc dot gnu dot org
2009-04-14 20:08 ` jv244 at cam dot ac dot uk
2009-05-14 10:55 ` rguenth at gcc dot gnu dot org
4 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2009-04-14 20:00 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from pinskia at gcc dot gnu dot org 2009-04-14 19:59 -------
*** Bug 39771 has been marked as a duplicate of this bug. ***
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jv244 at cam dot ac dot uk
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35412
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/35412] Correctness with -ftrapv depended on libcall notes
2008-02-29 23:24 [Bug middle-end/35412] New: Correctness with -ftrapv depends " steven at gcc dot gnu dot org
2008-06-25 11:55 ` [Bug middle-end/35412] Correctness with -ftrapv depended " rguenth at gcc dot gnu dot org
@ 2008-07-04 19:43 ` jsm28 at gcc dot gnu dot org
2009-04-14 20:00 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 7+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2008-07-04 19:43 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from jsm28 at gcc dot gnu dot org 2008-07-04 19:42 -------
Not a regression, removing milestone.
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.4.0 |---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35412
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/35412] Correctness with -ftrapv depended on libcall notes
2008-02-29 23:24 [Bug middle-end/35412] New: Correctness with -ftrapv depends " steven at gcc dot gnu dot org
@ 2008-06-25 11:55 ` rguenth at gcc dot gnu dot org
2008-07-04 19:43 ` jsm28 at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2008-06-25 11:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from rguenth at gcc dot gnu dot org 2008-06-25 11:54 -------
Not a regression. $Summary was true always.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.4 Regression] Correctness|Correctness with -ftrapv
|with -ftrapv depended on |depended on libcall notes
|libcall notes |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35412
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2023-03-05 20:03 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <bug-35412-4@http.gcc.gnu.org/bugzilla/>
2023-03-05 14:20 ` [Bug middle-end/35412] Correctness with -ftrapv depended on libcall notes ntysdd at qq dot com
2023-03-05 20:03 ` pinskia at gcc dot gnu.org
2008-02-29 23:24 [Bug middle-end/35412] New: Correctness with -ftrapv depends " steven at gcc dot gnu dot org
2008-06-25 11:55 ` [Bug middle-end/35412] Correctness with -ftrapv depended " rguenth at gcc dot gnu dot org
2008-07-04 19:43 ` jsm28 at gcc dot gnu dot org
2009-04-14 20:00 ` pinskia at gcc dot gnu dot org
2009-04-14 20:08 ` jv244 at cam dot ac dot uk
2009-05-14 10:55 ` rguenth at gcc dot gnu dot 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).