[LLVMdev] "Duplicate option categories" assertion triggered loading an LLVM-project

[Sergey Dmitrouk]

Sorry for the wrong suggestion.  I built your project and the library is
about 17 MiB as it includes LLVM libraries statically linked to it.  opt
has same libraries, same global variables that define command-line
categories, which causes raising of the assertion.  If I comment out

    target_link_libraries(Test ${REQ_LLVM_LIBS})

in pass/CMakeLists.txt, so file is about 27 KiB and prints function
names just as expected.

Cheers,
Sergey

On Sun, Aug 10, 2014 at 05:42:30AM -0700, Alberto Magni wrote:
>    Hello Sergey,
> 
>    thanks for the suggestion.
>    The name of the pass is not what triggers the assertion.
>    The test case I attached to the email is a stripped-down version of a much
>    more complicated pass
>    (with a proper name) that originally caused the problem.
> 
>    Also, to be sure, I just tried to change the name of the pass to something
>    more significant.
>    It did not work.
>    Cheers,
>    Alberto
> 
>    On Sun, Aug 10, 2014 at 1:14 PM, Sergey Dmitrouk
>    <sdmitrouk at accesssoftek.com> wrote:
> 
>      Hi Alberto,
> 
>      See [0], first argument of RegisterPass' constructor is argument name.
>      Try changing it to something more unique than "test", I guess it might
>      cause your issue.
> 
>      Regards,
>      Sergey
> 
>      [0]:
>      http://www.llvm.org/docs/doxygen/html/structllvm_1_1RegisterPass.html
>      On Sat, Aug 09, 2014 at 08:48:00AM -0700, Alberto Magni wrote:
>      > A  A Hi all,
>      >
>      > A  A I am trying to create an out-of-tree LLVM project.
>      >
>      > A  A I have written a Test project following the guide in [1] that
>      triggers the
>      > A  A problem.
>      >
>      > A  A Pass body is in [2].
>      > A  A The CMakeLists.txt file for the "root" directory is in [3]
>      > A  A The CMakeLists.txt file for the "pass" directory is in [4]
>      >
>      > A  A When I run opt --load=libTest.so
>      > A  A I trigger the following assertion:
>      >
>      > A  A opt: CommandLine.cpp:134: void
>      > A  A llvm::cl::OptionCategory::registerCategory(): Assertion
>      > A  A `std::count_if(RegisteredOptionCategories->begin(),
>      > A  A RegisteredOptionCategories->end(), [this](const OptionCategory
>      *Category)
>      > A  A { return getName() == Category->getName(); }) == 0 && "Duplicate
>      option
>      > A  A categories"' failed.
>      >
>      > A  A Note that my pass does not even define any command line option.
>      >
>      > A  A I am using LLVM 3.5 git fa840e7dfb9115a3ac9891d898e7fe2543c65948
>      > A  A gcc 4.8.1
>      > A  A cmake 2.8.11
>      >
>      > A  A Am I doing anything wrong in the project setup ?
>      > A  A Any help is appreciated.
>      >
>      > A  A Cheers,
>      > A  A Alberto
>      >
>      > A  A [1]
>      http://llvm.org/docs/CMake.html#embedding-llvm-in-your-project
>      > A  A [2]
>      https://gist.github.com/HariSeldon/9a310312a4e1a0039483#file-test-cpp
>      > A  A [3]
>      > A 
>      A https://gist.github.com/HariSeldon/d979d38cf8ee52d9d134#file-cmakelists-txt
>      > A  A [4]
>      > A 
>      A https://gist.github.com/HariSeldon/5f60a6bf6b28617593f2#file-cmakelists-txt