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下列哪两条指令构成RAW型依赖关系?
  • a = b + c;<br>a = c + d;
  • a = b + c;<br>d = a + c;
  • a = b + c;<br>d = b + c;
  • a = b + c;<br>b = c + d;
RAW(read after write): 写后读关系
先写a,之后再在d=a+c时读a
编辑于 2019-10-05 11:23:20 回复(0)