[llvm-dev] SelectionDAGBuilder-may by a bug

Anton Korobeynikov via llvm-dev llvm-dev at lists.llvm.org
Wed Nov 27 22:59:35 PST 2019


Hello

Well, in general – you cannot. Landing pad destination blocks are very
precious and should not have anything extra. It's likely that ollvm
simply does not handle them properly and needs to be fixed.

On Thu, Nov 28, 2019 at 6:32 AM weipingshun via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
>
>
> hello all
>
>   when i use ollvm from github.com:heroims/obfuscator.git [version 5.0.0] to obtuscate my c++ code.
>
>   I got a endless loop in llvm SelectionDAGBuilder.cpp:findUnwindDestinations function.
>
>
>  the 1349 - 1351 line is my debug code.
>  the code run in 1353 line branch. and return to 1327 line.
>
>  I don’t known in this function how to handle LoadInst?  help!!
>
>
> thanks.
>
>
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-- 
With best regards, Anton Korobeynikov
Department of Statistical Modelling, Saint Petersburg State University
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