- -- into dereferences of Sp). This is the same hack in spirit as
- -- was in cmm/CmmOpt.hs. Fix this up to only bug out if certain
- -- CmmExprs are involved.
- -- ToDo: We miss an opportunity here, where all possible
- -- inlinings should instead be sunk.
+ -- into dereferences of Sp). See [Register parameter passing].
+ -- ToDo: Fix this up to only bug out if all inlines were for
+ -- CmmExprs with global registers (we can't use the
+ -- straightforward mapExpDeep call, in this case.) ToDo: We miss
+ -- an opportunity here, where all possible inlinings should
+ -- instead be sunk.