(GenStgExpr bndr occ)
-- the thing to examine
- (GenStgLiveVars occ) -- Live vars of whole case
- -- expression; i.e., those which mustn't be
- -- overwritten
+ (GenStgLiveVars occ) -- Live vars of whole case expression,
+ -- plus everything that happens after the case
+ -- i.e., those which mustn't be overwritten
- (GenStgLiveVars occ) -- Live vars of RHSs;
+ (GenStgLiveVars occ) -- Live vars of RHSs (plus what happens afterwards)
-- i.e., those which must be saved before eval.
--
-- note that an alt's constructor's