[Bug 98761] [regression][radeonsi][polaris]"radeonsi: set IF_THRESHOLD to 3" breaks Witcher2's ground

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98761

--- Comment #6 from Nicolai Hähnle <nhaehnle at gmail.com> ---
If Witcher 2 has scalar spills, I'd suggest trying LLVM trunk from before
r286766 (or perhaps with that commit reverted), as there's another known bug:
SGPR spills conflict with fragment shader input interpolation (because both use
M0), and it's possible that the Mesa commit simply exposed the issue.

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