Re: [GHC] #5262: Compiling with -O makes some expressions too lazy and causes space leaks
#5262: Compiling with -O makes some expressions too lazy and causes space leaks -+-- Reporter: michal.palka |Owner: Type: bug | Status: new Priority: normal|Milestone: 7.4.1 Component: Compiler | Version: 7.1 Keywords: laziness, strictness, space leak | Testcase: Blockedby:| Difficulty: Os: Unknown/Multiple | Blocking: Architecture: Unknown/Multiple | Failure: Incorrect result at runtime -+-- Changes (by simonmar): * owner: simonmar = Comment: unassigning me, on second thoughts I'm not sure we want to change seq to use `seq#`. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/5262#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler ___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #5262: Compiling with -O makes some expressions too lazy and causes space leaks
#5262: Compiling with -O makes some expressions too lazy and causes space leaks -+-- Reporter: michal.palka |Owner: simonmar Type: bug | Status: new Priority: normal|Milestone: 7.4.1 Component: Compiler | Version: 7.1 Keywords: laziness, strictness, space leak | Testcase: Blockedby:| Difficulty: Os: Unknown/Multiple | Blocking: Architecture: Unknown/Multiple | Failure: Incorrect result at runtime -+-- Comment(by marlowsd@…): commit be5441799b7d94646dcd4bfea15407883537eaaa Author: Simon Marlow marlo...@gmail.com Date: Mon Jun 27 16:45:15 2011 +0100 Add two new primops: seq# :: a - State# s - (# State# s, a #) spark# :: a - State# s - (# State# s, a #) seq# is a version of seq that can be used in a State#-passing context. We will use it to implement Control.Exception.evaluate and thus fix #5129. Also we have plans to use it to fix #5262. spark# is to seq# as par is to pseq. That is, it creates a spark in a State#-passing context. We will use spark# and seq# to implement rpar and rseq respectively in an improved implementation of the Eval monad. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/5262#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler ___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #5262: Compiling with -O makes some expressions too lazy and causes space leaks
#5262: Compiling with -O makes some expressions too lazy and causes space leaks -+-- Reporter: michal.palka |Owner: simonmar Type: bug | Status: new Priority: normal|Milestone: 7.4.1 Component: Compiler | Version: 7.1 Keywords: laziness, strictness, space leak | Testcase: Blockedby:| Difficulty: Os: Unknown/Multiple | Blocking: Architecture: Unknown/Multiple | Failure: Incorrect result at runtime -+-- Changes (by simonmar): * owner: = simonmar * milestone: = 7.4.1 Comment: I'm looking at #5129, and we think the same mechanism can be used to fix `seq`, so assigning this to me. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/5262#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler ___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #5262: Compiling with -O makes some expressions too lazy and causes space leaks
#5262: Compiling with -O makes some expressions too lazy and causes space leaks -+-- Reporter: michal.palka | Owner: Type: bug | Status: new Priority: normal| Component: Compiler Version: 7.1 |Keywords: laziness, strictness, space leak Testcase:| Blockedby: Os: Unknown/Multiple |Blocking: Architecture: Unknown/Multiple | Failure: Incorrect result at runtime -+-- Changes (by michal.palka): * cc: michal.palka@… (added) -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/5262#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler ___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
