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Update README for libclc workaround

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Aries 2023-01-17 18:16:53 +08:00
parent b3609c1ccc
commit f9c20342ff
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@ -46,13 +46,15 @@ NOTE: `-DPOCL_DEBUG_MESSAGES=ON` is default on, you can set env variable `POCL_D
```
# Add ventus-llvm built llvm-config to PATH
export PATH=<path_to_ventus_llvm_install_bin>:$PATH
export PATH=<llvm_install_folder>/bin:$PATH
cd llvm-project
mkdir build-libclc && cd build-libclc
cmake ../libclc -DCMAKE_LLAsm_COMPILER_WORKS=ON -DCMAKE_CLC_COMPILER_WORKS=ON -DCMAKE_CLC_COMPILER_FORCED=ON -DCMAKE_LLAsm_FLAGS="-target riscv32 -mcpu=ventus-gpgpu" -DLIBCLC_TARGETS_TO_BUILD="riscv32--" -DCMAKE_CXX_FLAGS="-I <llvm-project-root>/llvm/include -std=c++17" -G Ninja
ninja
# Manually copy kernel builtins to the location where pocl driver can locate
cp riscv32--.bc <pocl_install_dir>/share/pocl/kernel-riscv32.bc
# WORKAROUND: Manually copy libworkitem.a
cp riscv32/lib/libworkitem.a <llvm_install_folder>/lib/
```