[Bug tree-optimization/96671] Failure to optimize a 3 xor+and pattern to xor+andnot

[gabravier at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96671

--- Comment #2 from Gabriel Ravier <gabravier at gmail dot com> ---
There is also a very similar pattern with this function :

int f(int a, int b, int c)
{
    return (a ^ b) | ((b ^ c) ^ a);
}

Which can be optimized to `return (a ^ b) | c;`.