regs_refine_cond_op
static void regs_refine_cond_op(struct bpf_reg_state *reg1, struct bpf_reg_state *reg2,
regs_refine_cond_op(&env->false_reg1, &env->false_reg2, rev_opcode(opcode), is_jmp32);
regs_refine_cond_op(&env->true_reg1, &env->true_reg2, opcode, is_jmp32);