jholewinski added inline comments. ================ Comment at: lib/Basic/Targets.cpp:1849 @@ +1848,3 @@ + Opts.cl_khr_d3d10_sharing = 1; + Opts.cl_khr_subgroups = 1; + ---------------- Do you really intend to enable subgroup support? Repository: rL LLVM http://reviews.llvm.org/D20389