c4941376a9
nir_lower_int64 doesn't know how to lower 64-bit imul reductions and scans. Lowering subgroup operations first leaves us with just 64-bit ballot and read_invocation, which are easily lowered. Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33365>