FTBFS with LLVM 11.1: "error: ‘class llvm::Type’ has no member named ‘getVectorElementType’; did you mean ‘getPointerElementType’"

[thiagomacieira]

IGC version: 1.0.7041
vc-intrinscs version: some random commit

cmake args: -G 'Unix Makefiles' -DBUILD_SHARED_LIBS:BOOL=ON -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_SBINDIR=/usr/bin -DCMAKE_INSTALL_LIBDIR=/usr/lib64 -DLIB_INSTALL_DIR=/usr/lib64 -DLIB_SUFFIX=64 -DCMAKE_AR=/usr/bin/gcc-ar -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_RANLIB=/usr/bin/gcc-ranlib .. -DIGC_OPTION__LLVM_PREFERRED_VERSION=11.1 -DINSTALL_SPIRVDLL=0

Build log:

/usr/bin/ld: CMakeFiles/CMCLTranslatorTool.dir/Main.cpp.o: in function `main':
/builddir/build/BUILD/intel-graphics-compiler-igc-1.0.7041/IGC/VectorCompiler/CMCL/tools/Translator/Main.cpp:61: undefined reference to `cmcl::translateBuiltins(llvm::Module&)'

/builddir/build/BUILD/intel-graphics-compiler-igc-1.0.7041/IGC/Compiler/ConvertMSAAPayloadTo16Bit.cpp: In member function ‘void IGC::ConvertMSAAPayloadTo16Bit::visitCallInst(llvm::CallInst&)’:
/builddir/build/BUILD/intel-graphics-compiler-igc-1.0.7041/IGC/Compiler/ConvertMSAAPayloadTo16Bit.cpp:156:35: error: ‘class llvm::Type’ has no member named ‘getVectorElementType’; did you mean ‘getPointerElementType’?
  156 |                 ldmcs->getType()->getVectorElementType() == m_builder->getInt32Ty())
      |                                   ^~~~~~~~~~~~~~~~~~~~
      |                                   getPointerElementType
/builddir/build/BUILD/intel-graphics-compiler-igc-1.0.7041/IGC/Compiler/ConvertMSAAPayloadTo16Bit.cpp:160:61: error: ‘class llvm::Type’ has no member named ‘getVectorNumElements’; did you mean ‘getStructNumElements’?
  160 |                 uint ldmcsNumOfElements = ldmcs->getType()->getVectorNumElements();
      |                                                             ^~~~~~~~~~~~~~~~~~~~
      |                                                             getStructNumElements
/builddir/build/BUILD/intel-graphics-compiler-igc-1.0.7041/IGC/Compiler/ConvertMSAAPayloadTo16Bit.cpp:161:71: error: ‘class llvm::Type’ has no member named ‘getVectorNumElements’; did you mean ‘getStructNumElements’?
  161 |                 uint newLdmcsNumOfElements = new_mcs_call->getType()->getVectorNumElements();
      |                                                                       ^~~~~~~~~~~~~~~~~~~~
      |                                                                       getStructNumElements

LLVM 11 was released over 6 months ago. LLVM 12 was released 6 days ago.

Please make it a priority to support both.

[ArchangeGabriel]

Nothing new here. It used to build with LLVM 11, but does not anymore for a long time now.

There is a open PR for LLVM11/12 here: #171.

[thiagomacieira]

#171 was closed. The error has now changed to:

/builddir/build/BUILD/intel-graphics-compiler-igc-1.0.7041/IGC/VectorCompiler/lib/GenXCodeGen/GenXDebugInfo.cpp: In member function ‘void llvm::GenXDebugInfo::processFunctionGroup(llvm::GenXModule&, VISABuilder&, const llvm::FunctionGroup&)’:
/builddir/build/BUILD/intel-graphics-compiler-igc-1.0.7041/IGC/VectorCompiler/lib/GenXCodeGen/GenXDebugInfo.cpp:531:43: error: cannot convert ‘llvm::StringRef’ to ‘const string&’ {aka ‘const std::__cxx11::basic_string<char>&’}
  531 |     auto *VF = VB.GetVISAKernel(F->getName());
      |                                 ~~~~~~~~~~^~
      |                                           |
      |                                           llvm::StringRef
In file included from /builddir/build/BUILD/intel-graphics-compiler-igc-1.0.7041/IGC/../visa/include/visaBuilder_interface.h:45,
                 from /builddir/build/BUILD/intel-graphics-compiler-igc-1.0.7041/IGC/VectorCompiler/lib/GenXCodeGen/GenXVisaRegAlloc.h:66,
                 from /builddir/build/BUILD/intel-graphics-compiler-igc-1.0.7041/IGC/VectorCompiler/lib/GenXCodeGen/GenXDebugInfo.cpp:29:
/builddir/build/BUILD/intel-graphics-compiler-igc-1.0.7041/IGC/../visa/include/VISABuilderAPIDefinition.h:859:75: note:   initializing argument 1 of ‘virtual VISAKernel* VISABuilder::GetVISAKernel(const string&)’
  859 |     VISA_BUILDER_API virtual VISAKernel* GetVISAKernel(const std::string& kernelName = "") = 0;
      |                                                        ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
/builddir/build/BUILD/intel-graphics-compiler-igc-1.0.7041/IGC/VectorCompiler/lib/GenXCodeGen/GenXDebugInfo.cpp:532:57: error: could not convert ‘{<expression error>}’ from ‘<brace-enclosed initializer list>’ to ‘std::vector<llvm::GenXDebugInfo::ProgramInfo::FunctionInfo>’
  532 |     processKernel(ProgramInfo{{BuildFunctionInfo(VF, F)}});
      |                                                         ^
      |                                                         |
      |                                                         <brace-enclosed initializer list>
make[2]: *** [IGC/VectorCompiler/lib/GenXCodeGen/CMakeFiles/VCCodeGen.dir/build.make:272: IGC/VectorCompiler/lib/GenXCodeGen/CMakeFiles/VCCodeGen.dir/GenXDebugInfo.cpp.o] Error 1

[eero-t]

Last week I failed to build build latest IGC release against LLVM v11 on Ubuntu 21.04, but older IGC release already in Ubuntu 21.04 repos does use LLVM v11. However, that and Debian package it's derived from, are from last October, and disable VC (I did not).

Arch Linux builds IGC with LLVM v12, but that needs patches: https://github.com/archlinux/svntogit-community/blob/packages/intel-graphics-compiler/trunk/PKGBUILD

[pszymich]

Hello,
LLVM 11 support in IGC is currently experimental, this means we don't provide any conformance or performance guarantees. The work on LLVM 11 switch is ongoing, currently blocked by some failing tests we run and work on internally.
As of this commit: fcb4d7b IGC can be built with LLVM 11 if you need it to. We're expecting to fully switch to LLVM 11 in IGC at the end of July.
After the switch to LLVM 11 we are starting the work on switching to LLVM 12 immediately.