18d51831a8
radeonsi won't emit tess factor in the lower pass, need to keep the output for llvm backend to pass it as parameter. This is used by radeonsi for an optimization to save LDS write. Reviewed-by: Marek Olšák <marek.olsak@amd.com> Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> Reviewed-by: Timur Kristóf <timur.kristof@gmail.com> Signed-off-by: Qiang Yu <yuq825@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16705>