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We can just use the new builder helpers to get the optimization advantages of a MOV on Gfx8+ while also getting the necessary F32TO16 on Gfx7.x and yet not worry too hard about it. Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21783>