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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/96496] Conversion to enum with underlying type bool
 produces wrong result
Date: Thu, 06 Aug 2020 13:56:42 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96496

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mpolacek at gcc dot gnu.org

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
As a consequence of the
andl    $1, %eax
we produce 1 for odd numbers only:

enum E : bool { One, Two };

int
f1 (int x)
{
  return (E) x;
}

int
main ()
{
  if (f1 (6) !=3D 1)
    __builtin_abort ();
  if (f1 (7) !=3D 1)
    __builtin_abort ();
}=