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.