https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88737
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org,
| |msebor at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
Severity|enhancement |normal
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Practically the implementation could mark a end-of-life like the following:
free (a);
a = {CLOBBER};
printf("%d\n", *a);
and you'd get a uninitialized use warning on the *a dereference.
This is something gimplification could emit after free() calls without
any extension(?)
