[PATCH] D105191: [Clang][OpenMP] Add support for Static Device Libraries

[Ye Luo via Phabricator via cfe-commits]

ye-luo added a comment.

  yeluo at epyc-server:~/opt/openmp-target/tests/math$ clang++ -fopenmp -fopenmp-targets=nvptx64 -Xopenmp-target=nvptx64 -march=sm_80 modf.cpp -c
  yeluo at epyc-server:~/opt/openmp-target/tests/math$ clang-offload-bundler -type=o --inputs=modf.o --list
  openmp-nvptx64
  host-x86_64-unknown-linux-gnu
  yeluo at epyc-server:~/opt/openmp-target/tests/math$ clang++ -fopenmp -fopenmp-targets=nvptx64 modf.cpp -c
  yeluo at epyc-server:~/opt/openmp-target/tests/math$ clang-offload-bundler -type=o --inputs=modf.o --list
  openmp-nvptx64
  host-x86_64-unknown-linux-gnu
  yeluo at epyc-server:~/opt/openmp-target/tests/math$ clang++ -fopenmp -fopenmp-targets=nvptx64-nvidia-cuda modf.cpp -c
  warning: linking module '/soft/llvm/main-20210910/lib/libomptarget-nvptx-sm_80.bc': Linking two modules of different target triples: '/soft/llvm/main-20210910/lib/libomptarget-nvptx-sm_80.bc' is 'nvptx64' whereas 'modf.cpp' is 'nvptx64-nvidia-cuda'
   [-Wlinker-warnings]
  1 warning generated.
  yeluo at epyc-server:~/opt/openmp-target/tests/math$ clang-offload-bundler -type=o --inputs=modf.o --list
  openmp-nvptx64-nvidia-cuda
  host-x86_64-unknown-linux-gnu

Here is my clang build recipe

  cmake -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ \
      -DCMAKE_BUILD_TYPE=Release \
      -DCMAKE_INSTALL_PREFIX=$INSTALL_FOLDER \
      -DLLVM_ENABLE_BACKTRACES=ON \
      -DLLVM_ENABLE_WERROR=OFF \
      -DBUILD_SHARED_LIBS=OFF \
      -DLLVM_ENABLE_RTTI=ON \
      -DLLVM_TARGETS_TO_BUILD="X86;AMDGPU;NVPTX" \
      -DLLVM_ENABLE_ASSERTIONS=ON \
      -DLLVM_ENABLE_PROJECTS="clang;lld" \
      -DLLVM_ENABLE_RUNTIMES="libcxxabi;libcxx;openmp" \
      -DLIBOMPTARGET_NVPTX_COMPUTE_CAPABILITIES="80,61" \
      -DCLANG_OPENMP_NVPTX_DEFAULT_ARCH=sm_80 \
      -DLIBOMPTARGET_NVPTX_MAX_SM=38 \
      -DLIBOMPTARGET_ENABLE_DEBUG=ON \
      ../llvm-project/llvm


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D105191/new/

https://reviews.llvm.org/D105191