Comments (4)
从哪里得到的【对move指令跳过比对】这一结论?
from difftest.
抱歉,我应该是理解错误了。以下代码的意思应该是先判断是否为move消除后,再根据是否为mmio和perfcnt来决定跳过比对。我想问的应该是,为什么通过move消除来判断是否skip?
from difftest.
Git blame可以看到这一行代码的修改历史。上一次修改的commit是OpenXiangShan/XiangShan@7d45a14
看到修改的代码中有代码注释解释您的这一问题,可能是当时修改时被误删了:
// when committing an eliminated move instruction, // we must make sure that skip is properly set to false (output from EXU is random value)
另外,这个问题是香山设计的问题,和difftest无关,我就先close这个issue了。为了跟踪问题和方便其他的用户查询,如果您对这个问题后续仍然有疑问,烦请移步香山仓库提issue询问:https://github.com/OpenXiangShan/XiangShan/issues
from difftest.
好的,感谢您的回答。
from difftest.
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from difftest.