[Bug tree-optimization/109238] [13 Regression] tst-realloc.i:42:19: error: pointer ‘p’ may be used after ‘realloc’ [-Werror=use-after-free] in glibc tests

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109238

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
  c = realloc (p, -1);

...
                        ;
  if (c != 
          ((void *)0)
              )
    support_exit_failure_impl (1, "tst-realloc.c", 120, "realloc (p, -1)
succeeded.");

  c = p;
...

  p = realloc (p, 0);