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Allow if consteval in device code with nvcc 13.1 #6902

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Allow if consteval in device code with nvcc 13.1 #6902

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6 changes: 4 additions & 2 deletions libcudacxx/include/cuda/std/__cccl/dialect.h
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Original file line number Diff line number Diff line change
Expand Up @@ -141,8 +141,10 @@
# define _CCCL_HAS_IF_CONSTEVAL_IN_CXX20() 0
#endif

#if _CCCL_CUDA_COMPILER(NVCC) \
&& (_CCCL_CUDA_COMPILER(NVCC, <, 13) || _CCCL_DEVICE_COMPILATION() || _CCCL_COMPILER(CLANG))
// nvcc before 13 doesn't support if consteval at all. Since 13, it accepts if consteval in host code (clang doesn't
// work) and since 13.1 it works in device code, too.
#if _CCCL_CUDA_COMPILER(NVCC, <, 13) || (_CCCL_CUDA_COMPILER(NVCC, <, 13, 1) && _CCCL_DEVICE_COMPILATION()) \
|| (_CCCL_CUDA_COMPILER(NVCC) && _CCCL_COMPILER(CLANG))
# undef _CCCL_HAS_IF_CONSTEVAL_IN_CXX20
# define _CCCL_HAS_IF_CONSTEVAL_IN_CXX20() 0
#endif // ^^^ disable if consteval in c++20 for nvcc ^^^
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