B::Asmdata
See the current Perl documentation for B::Asmdata.
Here is our local, out-dated (pre-5.6) version:
B::Asmdata - Autogenerated data about Perl ops, used to generate bytecode
use Asmdata;
See ext/B/B/Asmdata.pm.
AUTHOR
Malcolm Beattie, mbeattie@sable.ox.ac.uk