How to build llvm on linux

[Gardinal]

On linux, this is how to build llvm + clang + opencl-clang + SPIRV-LLVM-Translator + SPIR-V Headers + vc-intrinsics:

mkdir llvm
cd llvm

git clone https://github.com/llvm/llvm-project.git .
git clone https://github.com/KhronosGroup/SPIRV-LLVM-Translator.git
git clone https://github.com/intel/opencl-clang.git
git clone https://github.com/KhronosGroup/SPIRV-Headers.git ./llvm/projects/SPIRV-Headers
git clone https://github.com/intel/vc-intrinsics.git ./llvm/projects/vc-intrinsics

mkdir build
cd build

cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD=”X86″ -DLLVM_ENABLE_PROJECTS=”clang” -DLLVM_EXTERNAL_PROJECTS=”llvm-spirv;opencl-clang” -DLLVM_EXTERNAL_LLVM_SPIRV_SOURCE_DIR=”../SPIRV-LLVM-Translator” -DLLVM_EXTERNAL_OPENCL_CLANG_SOURCE_DIR=”../opencl-clang” ../llvm

make opencl-clang

[Gardinal]

The above will build the latest version. Here’s how to build specifically to LLVM version 11.1

mkdir llvm11
cd llvm11

git clone -b llvmorg-11.1.0 https://github.com/llvm/llvm-project.git .
git clone -b llvm_release_110 https://github.com/KhronosGroup/SPIRV-LLVM-Translator.git
git clone -b ocl-open-110 https://github.com/intel/opencl-clang.git
git clone https://github.com/KhronosGroup/SPIRV-Headers.git ./llvm/projects/SPIRV-Headers
git clone https://github.com/intel/vc-intrinsics.git ./llvm/projects/vc-intrinsics

mkdir build
cd build

cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD=”X86″ -DLLVM_ENABLE_PROJECTS=”clang” -DLLVM_EXTERNAL_PROJECTS=”llvm-spirv;opencl-clang” -DLLVM_EXTERNAL_LLVM_SPIRV_SOURCE_DIR=”../SPIRV-LLVM-Translator” -DLLVM_EXTERNAL_OPENCL_CLANG_SOURCE_DIR=”../opencl-clang” ../llvm

make opencl-clang

[Gardinal]

You can also add SPIRV-Tools if required:

git clone https://github.com/KhronosGroup/SPIRV-Tools.git ./llvm/projects/SPIRV-Tools

[Auteur]

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