int fr_abx(int a, int b, int x) { return ((a | x) & (b | x)) == ((a & b) | x); }
int fl_abx(int a, int b, int x) { return ((x | a) & (x | b)) == ((a & b) | x); }
int fm_abx(int a, int b, int x) { return ((a | x) & (x | b)) == ((a & b) | x); }
int fn_abx(int a, int b, int x) { return ((x | a) & (b | x)) == ((a & b) | x); }

int fr_bax(int b, int a, int x) { return ((a | x) & (b | x)) == ((b & a) | x); }
int fl_bax(int b, int a, int x) { return ((x | a) & (x | b)) == ((b & a) | x); }
int fm_bax(int b, int a, int x) { return ((a | x) & (x | b)) == ((b & a) | x); }
int fn_bax(int b, int a, int x) { return ((x | a) & (b | x)) == ((b & a) | x); }

int fr_axb(int a, int x, int b) { return ((a | x) & (b | x)) == ((a & b) | x); }
int fl_axb(int a, int x, int b) { return ((x | a) & (x | b)) == ((a & b) | x); }
int fm_axb(int a, int x, int b) { return ((a | x) & (x | b)) == ((a & b) | x); }
int fn_axb(int a, int x, int b) { return ((x | a) & (b | x)) == ((a & b) | x); }

int fr_bxa(int b, int x, int a) { return ((b | x) & (a | x)) == ((b & a) | x); }
int fl_bxa(int b, int x, int a) { return ((x | b) & (x | a)) == ((b & a) | x); }
int fm_bxa(int b, int x, int a) { return ((b | x) & (x | a)) == ((b & a) | x); }
int fn_bxa(int b, int x, int a) { return ((x | b) & (a | x)) == ((b & a) | x); }

/*
 * check-name: fact-and-ior
 * check-command: test-linearize -Wno-decl $file
 *
 * check-output-ignore
 * check-output-returns: 1
 */