Gen4-5 code lost: runtime_check_aads_emit
Submitted by Kenneth Graunke
Assigned to Ian Romanick
The c->runtime_check_aads_emit field has been unused since we removed the old ARB_fragment_shader backend in commit 098acf6c.
It apparently used to control runtime checking of antialiased line stuff when doing FB writes on Gen4-5. Presumably, that existed for a reason, and this has just been broken since Mesa 9.1 or so.
Someone should investigate and either fix the code, or explain why it isn't necessary and close this as NOTABUG.