#12765: Don't optimize coercions with -O0 -------------------------------------+------------------------------------- Reporter: bgamari | Owner: Type: task | Status: new Priority: normal | Milestone: 8.2.1 Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): I'm dropping a ticket here since I'm no longer convinced that this is worthwhile. Unfortunately this would require a significant amount of plumbing of the optimization level through a bunch of pure simplification functions to make this happen. Moreover, even if we forego the coercion simplification pass in `simpleOptPgm`, we still do run the simplifier even with `-O0`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12765#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler