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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug sanitizer/114217] -fsanitize=alignment false positive with
 intended unaligned struct member access
Date: Sun, 03 Mar 2024 07:10:30 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114217

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

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

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>but also emits code to assert alignment.


Yes because the code is broken still.

The alignment is not about when the access happens but rather when the poin=
ter
is casted to.

So in this case when passing in the argument to f, the argument entry shoul=
d be
aligned to what the `struct dir_entry` is aligned to; otherwise it is undef=
ined
code.=