#11095: -O0 -g slows GHC down on list literals (compared to -O0 without -g) -------------------------------------+------------------------------------- Reporter: slyfox | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.2 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): phab:D3001 Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): Thanks Peter. So, what should we do to solve it? It's a bad (cubic), unexpected, and unpredictable performance hole. Could you perhaps work on a fix? Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11095#comment:14 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler