Artem Belevich 42e1949b46 [CUDA] Emit host-side 'shadows' for device-side global variables ...

... and register them with CUDA runtime.

This is needed for commonly used cudaMemcpy*() APIs that use address of
host-side shadow to access their counterparts on device side.

Fixes PR26340

Differential Revision: http://reviews.llvm.org/D17779

llvm-svn: 262498

2016-03-02 18:28:50 +00:00

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