map -package:vector -package:conduit -package:containers -package:charset -is:exact -package:filepath -package:Cabal-syntax -package:base-prelude package:ghc -is:exact is:module

The assignment of virtual registers to stack slots
RoughMap is an approximate finite map data structure keyed on [RoughMatchTc]. This is useful when keying maps on lists of Types (e.g. an instance head).