[LLVM] DIRT 3 horrible performance when Shadows set to very high

Submitted by Gregor Münch

Assigned to mes..@..op.org

Once you set Shadows to very high in the Options Menu the game slows down. You have to use DXVK to run the game, version doesnt matter.

I already reported this last year when I was still using my Radeon HD 7970: https://github.com/doitsujin/dxvk/issues/67#issuecomment-421925690

The game takes a nose dive from 134 to 29 fps once you switch the settings.

I tried today with my new Vega 56 and ACO: with LLVM: 72,5 fps with ACO: 206,3 fps

So we finally have the proof that LLVM is causing this. This might be the same problem we have with the long standing and still valid bug: https://bugs.freedesktop.org/show_bug.cgi?id=100069

Version: git

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