[Mono-bugs] [Bug 387162] mono aborts on unverifiable IL that runs on .net

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Tue May 6 11:12:41 EDT 2008


User rkumpera at novell.com added comment

--- Comment #3 from Rodrigo Kumpera <rkumpera at novell.com>  2008-05-06 09:12:41 MST ---
Well, the code is valid, but not verifiable. The verifier refuses it as
verifiable, thou not for the right reason.

Mono's JIT can't handle all kinds of "valid" code. Which is good IMHO.

What happens here is that the MS runtime accepts as verifiable a broader set
than what ECMA 335 say.

I have spoted a lot of cases where peverify say the method is unverifiable but
the runtime runs it just fine.

The most common case is that it performs DCE on constant value branches and you
can put any kind of trash on the dead part. But it doesn't work on a 100% basis
so it's not something I'm planing on reproducing.

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