January 2013 - ghc-tickets

Re: [GHC] #2284: Stack-hack optimization causes much re-computation in GUI callbacks
by GHC 21 Jan '13

21 Jan '13

#2284: Stack-hack optimization causes much re-computation in GUI callbacks ---------------------------------+------------------------------------------ Reporter: sedillard | Owner: Type: bug | Status: new Priority: normal | Milestone: _|_ Component: Compiler | Version: 6.8.2 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Changes (by morabbin): * failure: => None/Unknown Comment: Claimed as dup of #1168 above, ought to be marked as such? Or vice versa. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2284#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1168: Optimisation sometimes decreases sharing in IO code
by GHC 21 Jan '13

21 Jan '13

#1168: Optimisation sometimes decreases sharing in IO code ---------------------------------+------------------------------------------ Reporter: simonmar | Owner: Type: bug | Status: new Priority: normal | Milestone: _|_ Component: Compiler | Version: 6.6 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: nofib/spectral/calendar Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Changes (by morabbin): * failure: => None/Unknown Comment: Seems to like nothing has changed here; #2284 is claimed as a dup of this ticket (#1168) in its comments, but not marked as such. Doesn't seem like a bug though; more like a feature request. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1168#comment:13> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1147: Quadratic behaviour in the compacting GC
by GHC 21 Jan '13

21 Jan '13

#1147: Quadratic behaviour in the compacting GC ---------------------------------+------------------------------------------ Reporter: simonmar | Owner: Type: bug | Status: new Priority: normal | Milestone: _|_ Component: Runtime System | Version: 6.6 Keywords: ghci compacting | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: Runtime performance bug Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Comment(by morabbin): Bump; still relevant? -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1147#comment:5> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1158: Problem with GADTs and explicit type signatures
by GHC 21 Jan '13

21 Jan '13

#1158: Problem with GADTs and explicit type signatures ---------------------------------+------------------------------------------ Reporter: guest | Owner: simonpj Type: bug | Status: new Priority: lowest | Milestone: _|_ Component: Compiler | Version: 6.6 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Changes (by morabbin): * failure: => None/Unknown Comment: Referenced FAQ entry is still relevant. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1158#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1167: mangler makes global symbol disappear on linux-ppc
by GHC 21 Jan '13

21 Jan '13

#1167: mangler makes global symbol disappear on linux-ppc ------------------------------------+--------------------------------------- Reporter: arekm@… | Owner: Type: bug | Status: new Priority: normal | Milestone: _|_ Component: Compiler | Version: 6.6 Keywords: | Os: Linux Architecture: powerpc | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ------------------------------------+--------------------------------------- Changes (by morabbin): * failure: => None/Unknown Comment: Has anyone taken up the reg'd Linux/PPC port? If not, close as won't fix. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1167#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1176: Infinite loop when printing error message
by GHC 21 Jan '13

21 Jan '13

#1176: Infinite loop when printing error message ------------------------------------------+--------------------------------- Reporter: Paul_Berry@… | Owner: thorkilnaur Type: bug | Status: new Priority: low | Milestone: _|_ Component: Compiler | Version: 6.6 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: tcfail177 Blockedby: | Blocking: Related: | ------------------------------------------+--------------------------------- Comment(by morabbin): Does GHC still use its own version of PP library? If not, close as fixed. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1176#comment:12> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1102: Lambda unicode character lex
by GHC 21 Jan '13

21 Jan '13

#1102: Lambda unicode character lex --------------------------------+------------------------------------------- Reporter: humasect | Owner: Type: feature request | Status: new Priority: normal | Milestone: _|_ Component: Compiler (Parser) | Version: 6.6 Resolution: | Keywords: lambda unicode lexical parse ? Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Easy (less than 1 hour) Testcase: | Blockedby: Blocking: | Related: --------------------------------+------------------------------------------- Comment(by morabbin): Seems like we're still at an impasses on this one: `bos`'s comment above is hard to get around. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1102#comment:12> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1192: GHC-only IOErrorType constructors, and is*Error(Type) functions
by GHC 21 Jan '13

21 Jan '13

#1192: GHC-only IOErrorType constructors, and is*Error(Type) functions ---------------------------------+------------------------------------------ Reporter: igloo | Owner: Type: feature request | Status: new Priority: low | Milestone: _|_ Component: Compiler | Version: 6.6 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Changes (by morabbin): * failure: => None/Unknown Comment: Refers to "below the `GHC only` comment", which is not to be found on the ticket, nor in `System.IO.Error` or any other obvious places. Fixed? -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1192#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #3103: Compiling base with cabal fails.
by GHC 21 Jan '13

21 Jan '13

#3103: Compiling base with cabal fails. ---------------------------------+------------------------------------------ Reporter: Lemmih | Owner: Type: bug | Status: new Priority: high | Milestone: 7.8.1 Component: Compiler | Version: 6.10.1 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: T3103 Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Comment(by monoidal): Not sure if this matters, but when I do "cabal build" with HEAD only a warning is given instead of a panic: {{{ [ 69 of 196] Compiling Foreign.Ptr ( Foreign/Ptr.hs, dist/build/Foreign/Ptr.o ) The interface for `base:GHC.Num' Declaration for $fNumWord_$csignum Unfolding of GHC.Num.$fNumWord_$csignum: Can't find interface-file declaration for data constructor GHC.Types.W# Probable cause: bug in .hi-boot file, or inconsistent .hi file Use -ddump-if-trace to get an idea of which file caused the error }}} and the compilation succeeds. The warning is suspect, though. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3103#comment:16> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7192: Bug in -fregs-graph with -fnew-codegen
by GHC 21 Jan '13

21 Jan '13

#7192: Bug in -fregs-graph with -fnew-codegen -------------------------------+-------------------------------------------- Reporter: simonmar | Owner: benl Type: bug | Status: closed Priority: highest | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Resolution: fixed | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Unknown Testcase: | Blockedby: Blocking: 4258 | Related: -------------------------------+-------------------------------------------- Comment(by shelarcy): Replying to [comment:9 simonmar]: > I still think we need to look at the graph-colouring allocator though, because I think it is interacting badly with the code generated by the new code generator. The code I've seen doesn't look great. I'm leaving it turned off for the time being, and I'll make a separate ticket. Where is a separated ticket? -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7192#comment:13> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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