GL_ARB_sample_locations DONE (nvc0)
GL_ARB_seamless_cubemap_per_texture DONE (freedreno, i965, nvc0, radeonsi, r600, softpipe, swr, virgl)
GL_ARB_shader_ballot DONE (i965/gen8+, nvc0, radeonsi)
- GL_ARB_shader_clock DONE (i965/gen7+, nv50, nvc0, r600, radeonsi)
+ GL_ARB_shader_clock DONE (i965/gen7+, nv50, nvc0, r600, radeonsi, virgl)
GL_ARB_shader_stencil_export DONE (i965/gen9+, r600, radeonsi, softpipe, llvmpipe, swr, virgl)
GL_ARB_shader_viewport_layer_array DONE (i965/gen6+, nvc0, radeonsi)
GL_ARB_sparse_buffer DONE (radeonsi/CIK+)