[cfe-dev] [OpenCL] atomic_double requires cl_khr_fp64 enabled

Liu, Yaxun (Sam) via cfe-dev cfe-dev at lists.llvm.org
Wed Apr 20 07:45:09 PDT 2016

Currently Clang requires cl_khr_fp64 enabled to use atomic_double. This seems to be a bug.

In OpenCL 2.0 fp64 is an optional feature. If platform supports it, there is no need to enable cl_khr_fp64 to use it. Actually in OpenCL 2.0 spec cl_khr_fp64 is not defined.

I plan to fix that if all agree it is a bug.

What's your opinion? Thanks.

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