Here is a complete test result from comparing todays master with the commit
right before the bisected commit. 
https://openbenchmarking.org/result/1810130-RA-MESAPERFO80

We see that without nir, the impact in Tesseract isnt that much. However with
nir we see a regression from 412 to 397 fps, Dirt Rally drops from 108 to
107fps. Other games see mostly a small improvement, except Civ VI 36 to 37fps.

I will change the title as it mostly impacts Tesseract. Havent tested other
games.