Library /sys$common/syshlp/pca$help.hlb SET, COVERAGE, Qualifiers, /ANC  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Saves codepath information in the performance data file for every
    module containing coverage-set points. This information is used
    by the Analyzer MERGE/ANC command to validate the ANC information
    being merged.