#13390: Strict literal float-out during desugaring regresses T1969 at -O0 -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by dfeuer): bgamari asked me to summarize my current best guess very briefly, so here goes. I believe the basic problem when the string floating patch is applied is that we're seeing something like {{{#!hs \x -> c x }}} and deciding to inline `c` into the body of the lambda. In this case, at least, it would be better to eta reduce instead. I'm not sure that it would ever be advantageous to inline a function into such a removable lambda. I can't think of such a situation myself, but that doesn't mean much. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13390#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler