llvm dev - Jun 2020 - Function name demangling in llvm ir

Hello,

I am doing some program analysis with C++ programs. I need to check if some
particular function is called in the program, for that I need the name of
the function being called in the call instruction. Since C++ mangles the
name of the function, I need a way to demangle the function name in llvm
IR. Is there any way to achieve that in llvm pass?

Regards,
Sangeeta
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I have not tried it but maybe

`std::string llvm::demangle(const std::string &MangledName)`

in `llvm/Demangle/Demangle.h`

is already what you want.



On 6/24/20 2:10 PM, sangeeta chowdhary via llvm-dev
wrote:
> Hello,
>
> I am doing some program analysis with C++ programs. I need to check if some
> particular function is called in the program, for that I need the name of
> the function being called in the call instruction. Since C++ mangles the
> name of the function, I need a way to demangle the function name in llvm
> IR. Is there any way to achieve that in llvm pass?
>
> Regards,
> Sangeeta
>
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
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(though, usual caveat: you /usually/ shouldn't be doing that - instead
relying only on whatever semantics the IR actually carries, rather
than implying extra semantics based on the demangled name)

On Wed, Jun 24, 2020 at 12:48 PM Johannes Doerfert via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
>
> I have not tried it but maybe
>
> `std::string llvm::demangle(const std::string &MangledName)`
>
> in `llvm/Demangle/Demangle.h`
>
> is already what you want.
>
>
>
> On 6/24/20 2:10 PM, sangeeta chowdhary via llvm-dev wrote:
>
> Hello,
>
> I am doing some program analysis with C++ programs. I need to check if some
> particular function is called in the program, for that I need the name of
> the function being called in the call instruction. Since C++ mangles the
> name of the function, I need a way to demangle the function name in llvm
> IR. Is there any way to achieve that in llvm pass?
>
> Regards,
> Sangeeta
>
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev