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Asked: 2026-05-25T02:45:59+00:00

Well this question may seem odd but it’s simple – my point is if

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Well this question may seem odd but it’s simple – my point is if i have a “goto” (brtrue etc) in the decompiled code like example

br IL_0003
call *****
IL_0003: ret

and I add a command after that **** call will the br at the top point to ret like it should or to that code.

does Cecil do it by itself or I have to take care of all those branches ? :/
it wouldn’t be very hard to fix them but if Cecil doesn’t then I simply won’t start this project, I’ve no time (or knowledge) for advanced IL magic 😛

(yes I know it won’t be IL_0003 it’s just for example)

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  1. Editorial Team

    Yes, Cecil will update the branch for you.

    The only case you have to take care of, is the case where the branch is a short form branch. If you inject too much instructions, it might overflow.

    There’s a very simple way to handle this. Before injecting code, simply call the extension methods SimplifyMacros from the Mono.Cecil.Rocks, like this:

    method.Body.SimplifyMacros ();

    This will turn the br.s into br.

    And when you’re done injecting code, simply call:

    method.Body.OptimizeMacros ();

    Which is the opposite operation, that is, it will try to turn br into br.s if possible.

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