expression simplifications about miasm

[serpilliere]

I did the following test:

>>> from miasm2.expression.expression import *
>>> from miasm2.expression.simplifications import expr_simp
>>> eax = ExprId('eax')
>>> expr_simp(ExprOp("^", eax, eax))
ExprInt(uint32(0x0L))
>>> expr_simp(((eax|(eax&(eax^eax)))))
ExprId('eax', 32)

Have you got a script which produces the error?

[a-vincent]

Hi,

please be aware that a / a and a % a should not be simplified if you
cannot guarantee that a is different from 0.

Regards,
Aymeric

[mrphrazer]

@serpilliere Exactly the same code didn't work. However, I couldnt reproduce it on a second machine. After I removed miasm from site-packages, it worked again. No idea where the problem was. Thanks!

@a-vincent Thanks for the hint, I'm aware of that. It wasn't supposed to be commited, just for a project where this assumption holds.