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Very soon this visitor will get more complicated. The users of the existing ir_variable_refcount visitor won't need the coming functionality, and this use doesn't need much of the functionality of ir_variable_refcount. v2: ir_array_refcount_visitor::get_variable_entry cannot return NULL, so don't check it. Suggested by Timothy. Signed-off-by: Ian Romanick <ian.d.romanick@intel.com> Cc: mesa-stable@lists.freedesktop.org Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>