[Bug middle-end/95189] [9 Regression] memcmp being wrongly stripped like strcmp

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95189

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |10.2.1, 9.4.0
            Summary|[9/10 Regression] memcmp    |[9 Regression] memcmp being
                   |being wrongly stripped like |wrongly stripped like
                   |strcmp                      |strcmp
      Known to work|                            |10.3.0, 8.5.0

--- Comment #31 from Richard Biener <rguenth at gcc dot gnu.org> ---
The original reported case doesn't affect GCC 9 it seems but the following
does:

int main()
{
  char a[] = "\0abc";
  volatile int res = __builtin_memcmp (a, "\0\0\0\0", 4);
  if (res == 0)
    __builtin_abort ();
  return 0;
}