[llvm-dev] [GPUCC] link against libdevice

Yuanfeng Peng via llvm-dev llvm-dev at lists.llvm.org
Fri Jul 29 06:27:34 PDT 2016


I was trying to compile scalarProd.cu (from CUDA SDK) with the following

* clang++ -I../ -I/usr/local/cuda-7.0/samples/common/inc
--cuda-gpu-arch=sm_50 scalarProd.cu*

 but ended up with the following error:

*ptxas fatal   : Unresolved extern function '__nv_mul24'*

Seems to me that libdevice was not automatically linked.  I wonder what
flags I need to pass to clang to have the code linked against libdevice?

Yuanfeng Peng
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