95a2eb70cf
Summary: The GPU runs these tests using the files built from the `libc` project. These will be placed in `include/<triple>` and `lib/<triple>`. We use the `amdhsa-loader` and `nvptx-loader` tools, which are also provided by `libc`. These launch a kernel called `_start` which calls `main` so we can pretend like GPU programs are normal terminal applications. We force serial exeuction here, because `llvm-lit` runs way too many processes in parallel, which has a bad habit of making the GPU drivers hang or run out of resources. This allows the compilation to be run in parallel while the jobs themselves are serialized via a file lock. In the future this can likely be refined to accept user specified architectures, or better handle including the root directory by exposing that instead of just `include/<triple>/c++/v1/`. This currently fails ~1% of the tests on AMDGPU and ~3% of the tests on NVPTX. This will hopefully be reduced further, and later patches can XFAIL a lot of them once it's down to a reasonable number. Future support will likely want to allow passing in a custom architecture instead of simply relying on `-mcpu=native`.
40 lines
1.8 KiB
CMake
40 lines
1.8 KiB
CMake
# Configuration options for libcxx.
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set(LIBCXX_CXX_ABI libcxxabi CACHE STRING "")
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set(LIBCXX_ENABLE_EXCEPTIONS OFF CACHE BOOL "")
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set(LIBCXX_ENABLE_FILESYSTEM OFF CACHE BOOL "")
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set(LIBCXX_ENABLE_LOCALIZATION OFF CACHE BOOL "")
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set(LIBCXX_ENABLE_MONOTONIC_CLOCK ON CACHE BOOL "")
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set(LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS ON CACHE BOOL "")
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set(LIBCXX_ENABLE_RANDOM_DEVICE OFF CACHE BOOL "")
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set(LIBCXX_ENABLE_RTTI OFF CACHE BOOL "")
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set(LIBCXX_ENABLE_SHARED OFF CACHE BOOL "")
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set(LIBCXX_ENABLE_STATIC_ABI_LIBRARY ON CACHE BOOL "")
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set(LIBCXX_ENABLE_STATIC ON CACHE BOOL "")
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set(LIBCXX_ENABLE_THREADS OFF CACHE BOOL "")
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set(LIBCXX_ENABLE_UNICODE OFF CACHE BOOL "")
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set(LIBCXX_ENABLE_WIDE_CHARACTERS OFF CACHE BOOL "")
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set(LIBCXX_HAS_TERMINAL_AVAILABLE OFF CACHE BOOL "")
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set(LIBCXX_INSTALL_LIBRARY ON CACHE BOOL "")
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set(LIBCXX_LIBC "llvm-libc" CACHE STRING "")
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set(LIBCXX_STATICALLY_LINK_ABI_IN_STATIC_LIBRARY ON CACHE BOOL "")
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set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
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# Configuration options for libcxxabi.
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set(LIBCXXABI_BAREMETAL ON CACHE BOOL "")
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set(LIBCXXABI_ENABLE_EXCEPTIONS OFF CACHE BOOL "")
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set(LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS OFF CACHE BOOL "")
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set(LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
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set(LIBCXXABI_ENABLE_THREADS OFF CACHE BOOL "")
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set(LIBCXXABI_USE_LLVM_UNWINDER OFF CACHE BOOL "")
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# Test configuration.
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set(LIBCXX_TEST_CONFIG "amdgpu-libc++-shared.cfg.in" CACHE STRING "")
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set(LIBCXX_TEST_PARAMS "optimization=none;long_tests=False;executor=amdhsa-loader" CACHE STRING "")
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# Necessary compile flags for AMDGPU.
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set(LIBCXX_ADDITIONAL_COMPILE_FLAGS
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"-nogpulib;-flto;-fconvergent-functions;SHELL:-Xclang -mcode-object-version=none" CACHE STRING "")
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set(LIBCXXABI_ADDITIONAL_COMPILE_FLAGS
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"-nogpulib;-flto;-fconvergent-functions;SHELL:-Xclang -mcode-object-version=none" CACHE STRING "")
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set(CMAKE_REQUIRED_FLAGS "-nogpulib" CACHE STRING "")
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