[Bug 90378] [LLVM][bisected] GPU lockups in Left 4 Dead 2

https://bugs.freedesktop.org/show_bug.cgi?id=90378

--- Comment #8 from Daniel Scharrer daniel@constexpr.org --- I have confirmed that the issues is still the same with Mesa git-ff0a41b + LLVM r241381: L4D2 has glitches and lockups with unpatched LLVM and no glitches or lockups with unpatched LLVM and R600_DEBUG=switch_on_eop.

However other source engine games (Counter-Strike: Global Offensive and Team Fortress 2) still have similar-looking glitches even with patched LLVM *and* R600_DEBUG=switch_on_eop. No idea if those are related though.