This directory contains pass_requirement files used to evaluate whether VTR 'passes' compared to a set of reference golden results (e.g. for regression testing). They are used primarily by the parse_vtr_task script. The .txt files in this directory are suitable for use with the VTR 'Task' infrastructure (i.e. as pass_requirement_file in the task's config.txt). Note that to avoid duplication many common pass requirements have been factored out into sub-files under the 'common' and 'timing' directories. They are then included into the relveant files using '%include' directives.