int one(int a)
{
        return !(a % 2);
}

int two(int a)
{
        return !(a & 1);
}


void main(void)
{
}


00000000004004ed <one>:
  4004ed:       55                      push   %rbp
  4004ee:       48 89 e5                mov    %rsp,%rbp
  4004f1:       89 7d fc                mov    %edi,-0x4(%rbp)
  4004f4:       8b 45 fc                mov    -0x4(%rbp),%eax
  4004f7:       83 e0 01                and    $0x1,%eax
  4004fa:       85 c0                   test   %eax,%eax
  4004fc:       0f 94 c0                sete   %al
  4004ff:       0f b6 c0                movzbl %al,%eax
  400502:       5d                      pop    %rbp
  400503:       c3                      retq

0000000000400504 <two>:
  400504:       55                      push   %rbp
  400505:       48 89 e5                mov    %rsp,%rbp
  400508:       89 7d fc                mov    %edi,-0x4(%rbp)
  40050b:       8b 45 fc                mov    -0x4(%rbp),%eax
  40050e:       83 e0 01                and    $0x1,%eax
  400511:       85 c0                   test   %eax,%eax
  400513:       0f 94 c0                sete   %al
  400516:       0f b6 c0                movzbl %al,%eax
  400519:       5d                      pop    %rbp
  40051a:       c3                      retq