Allow diligent to link a static DirectXShaderCompiler #723
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TheMostDiligent
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TheMostDiligent
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This change makes sense, there are few minor questions + formatting.
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| LLVMSupport | ||
| dxcompiler |
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Why are these public dependencies?
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See below for reasons - if you'd prefer to make the consumer link the libraries manually that's your call of course ;)
| ) | ||
| endif() | ||
| if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU") | ||
| target_link_libraries(Diligent-ShaderTools PRIVATE dl) |
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I think that dl should not be needed when linking statically - can be in the else() branch
Graphics/ShaderTools/CMakeLists.txt
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| cmake_policy(SET CMP0079 NEW) | ||
| target_link_libraries(SPIRV-Tools-opt | ||
| PUBLIC | ||
| LLVMSupport |
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Why is it public dependency?
Also, why is this dependency needed?
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Well, I made it public so that anything consuming this library will inherit the dependency. When static linking on some systems the builid will fail if the host executable is not itself linked against the dependencies.
Needed due to
/usr/bin/x86_64-pc-linux-gnu-ld.bfd: lib/DirectXShaderCompiler/lib/libSPIRV-Tools-opt.a(replace_desc_array_access_using_var_index.cpp.o): in function `spvtools::opt::ReplaceDescArrayAccessUsingVarIndex::ReplaceAccessChain(spvtools::opt::Instruction*, spvtools::opt::Instruction*) const':
./DirectXShaderCompiler/external/SPIRV-Tools/source/opt/replace_desc_array_access_using_var_index.cpp:83:(.text+0x385): undefined reference to `llvm_assert'
/usr/bin/x86_64-pc-linux-gnu-ld.bfd: lib/DirectXShaderCompiler/lib/libSPIRV-Tools-opt.a(replace_desc_array_access_using_var_index.cpp.o): in function `spvtools::opt::ReplaceDescArrayAccessUsingVarIndex::HasImageOrImagePtrType(spvtools::opt::Instruction const*) const':
./DirectXShaderCompiler/external/SPIRV-Tools/source/opt/replace_desc_array_access_using_var_index.cpp:157:(.text+0xf0c): undefined reference to `llvm_assert'
/usr/bin/x86_64-pc-linux-gnu-ld.bfd: lib/DirectXShaderCompiler/lib/libSPIRV-Tools-opt.a(replace_desc_array_access_using_var_index.cpp.o): in function `spvtools::opt::(anonymous namespace)::GetValueWithKeyExistenceCheck(unsigned int, std::unordered_map<unsigned int, unsigned int, std::hash<unsigned int>, std::equal_to<unsigned int>, std::allocator<std::pair<unsigned int const, unsigned int> > > const&)':
./DirectXShaderCompiler/external/SPIRV-Tools/source/opt/replace_desc_array_access_using_var_index.cpp:34:(.text+0x1c26): undefined reference to `llvm_assert'
/usr/bin/x86_64-pc-linux-gnu-ld.bfd: lib/DirectXShaderCompiler/lib/libSPIRV-Tools-opt.a(replace_desc_array_access_using_var_index.cpp.o): in function `spvtools::opt::ReplaceDescArrayAccessUsingVarIndex::CreatePhiInstruction(spvtools::opt::BasicBlock*, std::vector<unsigned int, std::allocator<unsigned int> > const&, std::vector<unsigned int, std::allocator<unsigned int> > const&, unsigned int) const':
./DirectXShaderCompiler/external/SPIRV-Tools/source/opt/replace_desc_array_access_using_var_index.cpp:424:(.text+0x1f6b): undefined reference to `llvm_assert'
/usr/bin/x86_64-pc-linux-gnu-ld.bfd: lib/DirectXShaderCompiler/lib/libSPIRV-Tools-opt.a(replace_desc_array_access_using_var_index.cpp.o): in function `spvtools::opt::ReplaceDescArrayAccessUsingVarIndex::GetConstNull(unsigned int) const':
./DirectXShaderCompiler/external/SPIRV-Tools/source/opt/replace_desc_array_access_using_var_index.cpp:400:(.text+0x2209): undefined reference to `llvm_assert'
/usr/bin/x86_64-pc-linux-gnu-ld.bfd: lib/DirectXShaderCompiler/lib/libSPIRV-Tools-opt.a(replace_desc_array_access_using_var_index.cpp.o):./DirectXShaderCompiler/external/SPIRV-Tools/source/opt/ir_builder.h:294: more undefined references to `llvm_assert' follow
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Add a flag (off by default) to allow diligent to use a statically-linked DirectXShaderCompiler