-import Stix ( StixTree(..), StixReg(..), CodeSegment )
-import UniqSupply ( returnUs, thenUs, mapUs, SYN_IE(UniqSM), UniqSupply )
-import Outputable ( printDoc )
-import Pretty ( Doc, vcat, Mode(..) )
+import Stix ( StixTree(..), StixReg(..), pprStixTrees )
+import PrimRep ( isFloatingRep )
+import UniqSupply ( returnUs, thenUs, mapUs, initUs,
+ initUs_, UniqSM, UniqSupply )
+import UniqFM ( UniqFM, emptyUFM, addToUFM, lookupUFM )
+import MachMisc ( IF_ARCH_i386(i386_insert_ffrees,) )
+
+import Outputable
+