February 2013 - ghc-tickets

Re: [GHC] #7495: Rebindable list syntax?
by GHC 18 Feb '13

18 Feb '13

#7495: Rebindable list syntax? ---------------------------------+------------------------------------------ Reporter: nwf | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.1 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Comment(by monoidal): Should this be marked as fixed? -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7495#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #7703: GHCI crashes when loading a file, Windows 7 64 bit
by GHC 18 Feb '13

18 Feb '13

#7703: GHCI crashes when loading a file, Windows 7 64 bit -----------------------------+---------------------------------------------- Reporter: crntaylor | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.6.2 | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Blockedby: Blocking: | Related: -----------------------------+---------------------------------------------- The file I'm loading in is reproduced here. I suspect the error is related to line 131, as it disappears when I comnment that line out. https://gist.github.com/chris-taylor/4977772 This is the output when using ghci -v: C:\Users\ctaylor\Dropbox\Projects\Adjunction>ghci -v category.hs GHCi, version 7.4.2: http://www.haskell.org/ghc/ :? for help Glasgow Haskell Compiler, Version 7.4.2, stage 2 booted by GHC version 7.0.4 Using binary package database: C:\Program Files (x86)\Haskell Platform\2012.4.0.0\lib\package.conf.d\package.cache Using binary package database: C:\Users\ctaylor\AppData\Roaming\ghc\i386-mingw32-7.4.2\package.conf.d\package.cache wired-in package ghc-prim mapped to ghc- prim-0.2.0.0-17c9bd07295565b6290606174529c842 wired-in package integer-gmp mapped to integer- gmp-0.4.0.0-c15e185526893c3119f809251aac8c5b wired-in package base mapped to base-4.5.1.0-7c83b96f47f23db63c42a56351dcb917 wired-in package rts mapped to builtin_rts wired-in package template-haskell mapped to template- haskell-2.7.0.0-f72884c301136c17f8a7dfc49c2775c9 wired-in package dph-seq not found. wired-in package dph-par not found. Hsc static flags: -static Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. *** gcc: "C:\Program Files (x86)\Haskell Platform\2012.4.0.0\lib/../mingw/bin/gcc.exe" "-fno-stack-protector" "-Wl ,--hash-size=31" "-Wl,--reduce-memory-overheads" "-LC:\ Program Files (x86)\Haskell Platform\2012.4.0.0\lib\base-4.5.1.0" "--print-file-name" "wsock32.dll" *** gcc: "C:\Program Files (x86)\Haskell Platform\2012.4.0.0\lib/../mingw/bin/gcc.exe" "-fno-stack-protector" "-Wl ,--hash-size=31" "-Wl,--reduce-memory-overheads" "-LC:\ Program Files (x86)\Haskell Platform\2012.4.0.0\lib\base-4.5.1.0" "--print-file-name" "user32.dll" *** gcc: "C:\Program Files (x86)\Haskell Platform\2012.4.0.0\lib/../mingw/bin/gcc.exe" "-fno-stack-protector" "-Wl ,--hash-size=31" "-Wl,--reduce-memory-overheads" "-LC:\ Program Files (x86)\Haskell Platform\2012.4.0.0\lib\base-4.5.1.0" "--print-file-name" "shell32.dll" Loading package base ... linking ... done. *** Chasing dependencies: Chasing modules from: Stable obj: [] Stable BCO: [] unload: retaining objs [] unload: retaining bcos [] Ready for upsweep [] Upsweep completely successful. *** Deleting temp files: Deleting: *** Chasing dependencies: Chasing modules from: *category.hs Stable obj: [] Stable BCO: [] unload: retaining objs [] unload: retaining bcos [] Ready for upsweep [NONREC ModSummary { ms_hs_date = Mon Feb 18 14:16:17 GMT Standard Time 2013 ms_mod = main:Main, ms_textual_imps = [import qualified Prelude, import Prelude hiding ( id, (.) )] ms_srcimps = [] }] *** Deleting temp files: Deleting: compile: input file category.hs Created temporary directory: C:\Users\ctaylor\AppData\Local\Temp\ghc2988_0 *** Checking old interface for main:Main: [1 of 1] Compiling Main ( category.hs, interpreted ) *** Parser: *** Renamer/typechecker: ghc.exe: panic! (the 'impossible' happened) (GHC version 7.4.2 for i386-unknown-mingw32): kindFunResult ghc-prim:GHC.Prim.*{(w) tc 34d} Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug > -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7703> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #6084: Add stg_ap_pnnv and related call patterns
by GHC 18 Feb '13

18 Feb '13

#6084: Add stg_ap_pnnv and related call patterns ---------------------------------+------------------------------------------ Reporter: SimonMeier | Owner: simonmar Type: feature request | Status: infoneeded Priority: normal | Milestone: 7.8.1 Component: Runtime System | Version: 7.4.1 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Changes (by simonmar): * status: new => infoneeded Comment: The attached patch implements the idea I mentioned above. It makes zero difference on nofib as far as I can tell. If someone could try it on the bytestring Builder or something else that needs this optimisation and let me know the results, that would be great. I want to be sure it's a win before putting it in. Note that it only takes effect with -O2. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6084#comment:7> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #6157: Support duplicating a TChan with the current content available.
by GHC 18 Feb '13

18 Feb '13

#6157: Support duplicating a TChan with the current content available. --------------------------------------+------------------------------------- Reporter: klao | Owner: simonmar Type: feature request | Status: closed Priority: normal | Milestone: 7.8.1 Component: libraries (other) | Version: 7.4.2 Resolution: fixed | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Unknown Testcase: stm/tests/cloneTChan001 | Blockedby: Blocking: | Related: --------------------------------------+------------------------------------- Changes (by simonmar): * status: merge => closed * resolution: => fixed -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6157#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #6157: Support duplicating a TChan with the current content available.
by GHC 18 Feb '13

18 Feb '13

#6157: Support duplicating a TChan with the current content available. ----------------------------------+----------------------------------------- Reporter: klao | Owner: simonmar Type: feature request | Status: merge Priority: normal | Milestone: 7.8.1 Component: libraries (other) | Version: 7.4.2 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: stm/tests/cloneTChan001 Blockedby: | Blocking: Related: | ----------------------------------+----------------------------------------- Changes (by simonmar): * status: new => merge * testcase: => stm/tests/cloneTChan001 Comment: Looks like I committed this a while ago, but forgot to close the ticket: {{{ commit 3122a9f7ab30f1eb0d70b50cabf29e6da2e20e5e Author: Simon Marlow <marlowsd(a)gmail.com> Date: Mon Jun 11 12:21:43 2012 +0100 add cloneTChan (GHC Trac ticket #6157) }}} I just added a test for good measure. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6157#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #7701: compiler exception when -> is used instead of => in instance definition
by GHC 17 Feb '13

17 Feb '13

#7701: compiler exception when -> is used instead of => in instance definition -------------------------------+-------------------------------------------- Reporter: erantapaa | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.4.2 | Keywords: Os: MacOS X | Architecture: x86 Failure: Compile-time crash | Blockedby: Blocking: | Related: -------------------------------+-------------------------------------------- When running ghci on the attached file, the following exception is raised: {{{ *** Exception: compiler/rename/RnSource.lhs:430:14-81: Irrefutable pattern failed for pattern Data.Maybe.Just (inst_tyvars, _, SrcLoc.L _ cls, _) }}} It seems to stem from accidentally using -> instead of => in the following instance definition: {{{ instance (ListConcat xs ys zs) -> ListConcat (x ::: xs) ys (x ::: zs) where listConcat = undefined }}} -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7701> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7480: Proposal: Add Functor instances for ArgOrder, OptDescr and ArgDescr
by GHC 17 Feb '13

17 Feb '13

#7480: Proposal: Add Functor instances for ArgOrder, OptDescr and ArgDescr -------------------------------+-------------------------------------------- Reporter: basvandijk | Owner: Type: feature request | Status: closed Priority: normal | Milestone: Component: libraries/base | Version: 7.6.1 Resolution: fixed | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: -------------------------------+-------------------------------------------- Changes (by igloo): * status: patch => closed * difficulty: => Unknown * resolution: => fixed Comment: Applied, thanks -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7480#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7559: `./configure --with-macosx-deployment-target=` doesn't work
by GHC 17 Feb '13

17 Feb '13

#7559: `./configure --with-macosx-deployment-target=` doesn't work ---------------------------+------------------------------------------------ Reporter: altaic | Owner: igloo Type: bug | Status: closed Priority: high | Milestone: 7.8.1 Component: Build System | Version: 7.6.1 Resolution: fixed | Keywords: Os: MacOS X | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: ---------------------------+------------------------------------------------ Changes (by igloo): * status: patch => closed * resolution: => fixed Comment: I've removed it -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7559#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7559: `./configure --with-macosx-deployment-target=` doesn't work
by GHC 17 Feb '13

17 Feb '13

#7559: `./configure --with-macosx-deployment-target=` doesn't work ---------------------------------+------------------------------------------ Reporter: altaic | Owner: igloo Type: bug | Status: patch Priority: high | Milestone: 7.8.1 Component: Build System | Version: 7.6.1 Keywords: | Os: MacOS X Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Comment(by ian@…): commit cd31b294fcff964ecea6f78f20e7d5743a853631 {{{ Author: Ian Lynagh <ian(a)well-typed.com> Date: Sun Feb 17 17:20:04 2013 +0000 Remove the MACOSX_DEPLOYMENT stuff; fixes #7559 If anyone wants to do this in the future, they should just set appropriate CC_OPTS/LD_OPTS variables instead. aclocal.m4 | 29 ----------------------------- configure.ac | 17 ----------------- mk/config.mk.in | 21 --------------------- rts/ghc.mk | 5 ----- utils/lndir/Makefile | 6 ------ 5 files changed, 0 insertions(+), 78 deletions(-) }}} -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7559#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #2530: deriving Show adds extra parens for constructor with record syntax
by GHC 17 Feb '13

17 Feb '13

#2530: deriving Show adds extra parens for constructor with record syntax ---------------------------------+------------------------------------------ Reporter: spl | Owner: Type: bug | Status: new Priority: lowest | Milestone: 7.6.2 Component: Compiler | Version: 6.8.3 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Comment(by igloo): Currently we do give the wrong answer, though, even if it's unlikely that anyone would care for anything other than making testcases. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2530#comment:20> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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