Known unsupported OpenCL features
The known unsupported OpenCL (both 1.x and 2.x) features are
listed here as encountered.
Frontend/Clang
cl_khr_f16: half precision float literals
Compiling “3434.0h” fails with:
error: invalid suffix ‘h’ on floating constant
Tested with Clang 3.4 on 2014-07-10.