Comment # 2 on bug 80015 from Vadim Girlin

Created attachment 101111 [details] [review]
patch

It seems the game relies on specific behavior of inversesqrt, which is
undefined when x <= 0 according to GLSL spec. The attached patch uses
V_RSQ_CLAMP_F32 instead of V_RSQ_LEGACY_F32 for int_AMDGPU_rsq, this fixed the
issue for me.