public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug c/106335] New: struct copies with volatile fields are done using memcpy
@ 2022-07-17 20:55 segher at gcc dot gnu.org
  2022-07-17 21:00 ` [Bug c/106335] " pinskia at gcc dot gnu.org
  0 siblings, 1 reply; 2+ messages in thread
From: segher at gcc dot gnu.org @ 2022-07-17 20:55 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106335

            Bug ID: 106335
           Summary: struct copies with volatile fields are done using
                    memcpy
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: segher at gcc dot gnu.org
  Target Milestone: ---

struct s { volatile int x[42]; } a;
void f(struct s b) { a = b; }

results in machine code calling memcpy(), which is not valid.

^ permalink raw reply	[flat|nested] 2+ messages in thread

* [Bug c/106335] struct copies with volatile fields are done using memcpy
  2022-07-17 20:55 [Bug c/106335] New: struct copies with volatile fields are done using memcpy segher at gcc dot gnu.org
@ 2022-07-17 21:00 ` pinskia at gcc dot gnu.org
  0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-07-17 21:00 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106335

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 47409.

*** This bug has been marked as a duplicate of bug 47409 ***

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2022-07-17 21:00 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-07-17 20:55 [Bug c/106335] New: struct copies with volatile fields are done using memcpy segher at gcc dot gnu.org
2022-07-17 21:00 ` [Bug c/106335] " pinskia 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).