R2
#define R2(a, b, c, d, e, f, g, h, k, K_LOAD, round, widx, wtype, IOP, iop_param) \
#define R2(i) (((i)>>16)&0x1f)
#define R2(a, b, c, d, e, f, g, h, round, widx, wtype) \
#define R2 %rcx
#define R2 2
#define R2 72
enum { R0 = 0, R1, R2, REG_MAX };
#define R2 2
#define R2 2
#define R2 2
#define R2 2
#undef R2
#define R2(a, b, c, d, e, f, g, h, t, w1, w2) \
#define R2 BPF_REG_2
#define R2 0x10
#define R2 2 * 8