2 * Register allocation functions.
3 * @author Sebastian Hack
13 * Check, if two values interfere.
14 * @param a The first value.
15 * @param b The second value.
16 * @return 1, if @p a and @p b interfere, 0 if not.
18 int values_interfere(const ir_node *a, const ir_node *b);