[cfe-dev] [CUDA] unable to compile the AXPY sample any more

[Artem Belevich via cfe-dev]

Could you add '-v' to command line and send me what it prints on your box?



On Mon, Jan 11, 2016 at 3:15 PM, Jingyue Wu <jingyue at google.com> wrote:

> Environment:
> LLVM/Clang version: r257392
> CUDA 7.0
> Ubuntu 14.04
>
> The axpy code can be found at
> http://llvm.org/docs/CompileCudaWithLLVM.html. I also tried the matrixMul
> in CUDA samples, and saw similar errors. I haven't tried CUDA 7.5, but do
> we assume CUDA 7.5 only?
>
> Below is the command line I use and the error messages I got:
>
> jingyue Work% clang++ -I../../common/inc -L/usr/local/cuda/lib64
> -I/usr/local/cuda axpy.cu -lcudart_static -lcuda -ldl -lrt -pthread
>
> In file included from <built-in>:614:
> In file included from <command line>:1:
> /usr/local/google/home/jingyue/Work/llvm/install-git/bin/../lib/clang/3.8.0/include/__clang_cuda_runtime_wrapper.h:169:31:
> error: redefinition of '__brkpt'
> static inline __device__ void __brkpt(int c) { __brkpt(); }
>                               ^
> /usr/local/google/home/jingyue/Work/llvm/install-git/bin/../lib/clang/3.8.0/include/cuda_runtime.h:132:31:
> note: previous definition is here
> static inline __device__ void __brkpt(int c) { __brkpt(); }
>                               ^
> In file included from <built-in>:614:
> In file included from <command line>:1:
> In file included from
> /usr/local/google/home/jingyue/Work/llvm/install-git/bin/../lib/clang/3.8.0/include/__clang_cuda_runtime_wrapper.h:181:
> /usr/local/cuda/include/device_functions.hpp:79:38: error: redefinition of
> 'mulhi'
> __DEVICE_FUNCTIONS_STATIC_DECL__ int mulhi(int a, int b)
>                                      ^
> /usr/local/cuda/include/device_functions.hpp:79:38: note: previous
> definition is here
> __DEVICE_FUNCTIONS_STATIC_DECL__ int mulhi(int a, int b)
>                                      ^
> In file included from <built-in>:614:
> In file included from <command line>:1:
> In file included from
> /usr/local/google/home/jingyue/Work/llvm/install-git/bin/../lib/clang/3.8.0/include/__clang_cuda_runtime_wrapper.h:181:
> /usr/local/cuda/include/device_functions.hpp:84:47: error: redefinition of
> 'mulhi'
> __DEVICE_FUNCTIONS_STATIC_DECL__ unsigned int mulhi(unsigned int a,
> unsigned int b)
>                                               ^
> /usr/local/cuda/include/device_functions.hpp:84:47: note: previous
> definition is here
> __DEVICE_FUNCTIONS_STATIC_DECL__ unsigned int mulhi(unsigned int a,
> unsigned int b)
>



-- 
--Artem Belevich
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