intel/brw: lower math op regions for Xe2+
What does this MR do and why?
intel/brw: lower math op regions for Xe2+
This helps fix:
- dEQP-VK.spirv_assembly.instruction.graphics.float16.arithmetic_3.tan_frag
- dEQP-VK.spirv_assembly.instruction.graphics.float16.arithmetic_2.tan_frag
This a additional/alternative fix to brw: fix virtual register splitting to not go b... (!31206 - merged)