Does LLVM have a tool for demangling Microsoft C++ mangling?

Question

I use LLVM on windows and I wonder if there is a command line tool to demangle MSVC C++ mangling. I am talking about command line tool like llvm-cxxfilt.

I see some commits in LLVM, but not sure if those are exposed as some tool or it is just C++ API.

I tried looking for llvm-undname mentioned in those commits in my LLVM install folder, but found nothing.

Doesn't Visual Studio's `undname.exe` work? Does it have to be LLVM? — Eljay, Sep 10 '21 at 13:53
@Eljay did not know that exists, you can make it an answer and I will accept — NoSenseEtAl, Sep 10 '21 at 14:03

score 2 · Accepted Answer · answered Sep 10 '21 at 14:06

2

Visual Studio comes with a command line tool called undname.exe which will undecorate (demangle) the name.

q.v. https://learn.microsoft.com/en-us/cpp/build/reference/decorated-names?view=msvc-160

answered Sep 10 '21 at 14:06

Eljay

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score 0 · Answer 2 · answered Sep 10 '21 at 13:56

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Google shows me: https://reviews.llvm.org/D49552
as well as other useful links.

Add a Microsoft Demangler library and utility.

So this feature was added in July of 2018 to the LLVM project.

answered Sep 10 '21 at 13:56

JDługosz

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Does LLVM have a tool for demangling Microsoft C++ mangling?

2 Answers2