[llvm-dev] [help] Kaleidoscope build fails after llvm-3.8

mats petersson via llvm-dev llvm-dev at lists.llvm.org
Tue Feb 16 06:15:12 PST 2016


Are you compiling the actual Kaleidoscope in the llvm 3.8 directory? Or a
version from a different version of LLVM?

--
Mats

On 16 February 2016 at 13:48, vivek pandya via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Hello ,
>
> I have build llvm from release_38 branch ( only llvm and clang ) and
> install it. My DYLD_LIBRARY_PATH points to installation-directory/lib.
>
> I am compiling example files for Kaleidoscope with following command :
>
> clang++ -g toy.cpp -std=c++11 `llvm-config --cxxflags --ldflags
> --system-libs --libs core mcjit native` -O3 -o toy
>
> but it fails with following error:
> Undefined symbols for architecture x86_64:
>   "llvm::CmpInst::CmpInst(llvm::Type*, llvm::Instruction::OtherOps,
> llvm::CmpInst::Predicate, llvm::Value*, llvm::Value*, llvm::Twine const&,
> llvm::Instruction*)", referenced from:
>       llvm::IRBuilder<true, llvm::ConstantFolder,
> llvm::IRBuilderDefaultInserter<true>
> >::CreateFCmp(llvm::CmpInst::Predicate, llvm::Value*, llvm::Value*,
> llvm::Twine const&, llvm::MDNode*) in toy-1f302b.o
>   "llvm::DIBuilder::createFunction(llvm::DIScope*, llvm::StringRef,
> llvm::StringRef, llvm::DIFile*, unsigned int, llvm::DISubroutineType*,
> bool, bool, unsigned int, unsigned int, bool,
> llvm::MDTupleTypedArrayWrapper<llvm::DITemplateParameter>,
> llvm::DISubprogram*)", referenced from:
>       (anonymous namespace)::FunctionAST::codegen() in toy-1f302b.o
>   "vtable for llvm::PHINode", referenced from:
>       llvm::IRBuilder<true, llvm::ConstantFolder,
> llvm::IRBuilderDefaultInserter<true> >::CreatePHI(llvm::Type*, unsigned
> int, llvm::Twine const&) in toy-1f302b.o
>   NOTE: a missing vtable usually means the first non-inline virtual member
> function has no definition.
> ld: symbol(s) not found for architecture x86_64
> clang-3.8: error: linker command failed with exit code 1 (use -v to see
> invocation)
>
> With previous version 3.8.0svn it used to build successfully. Can someone
> help me what I am doing wrong ?
>
> Sincerely,
> *Vivek Pandya*
>
>
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> llvm-dev at lists.llvm.org
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>
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