7 - Cull and Clip Distance
8 - Sampler anisotropy (Is there anything to do here?)
9 - Image Gather Extended
10 - Storage Image Without Format
11 - Investigate CTS failures on HSW
14 - Add surface capability introspection to ISL (pull the surface format
15 table from brw_surface_formats.c)
16 - Generalize blorp to use ISL and be sharable between the two drivers
20 - Fast color clears (after HiZ?)
21 - Compressed multisample support
22 - Renderbuffer compression (SKL+)
23 - Pushing pieces of UBOs?