__branch_check__  128 include/linux/compiler.h #  define likely(x)	(__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 1))
__branch_check__  131 include/linux/compiler.h #  define unlikely(x)	(__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 0))