November 2013 - ghc-tickets

[GHC] #8134: ghc enters a loop while building 7.6.3 for powerpc64 platform.
by GHC 04 Nov '13

04 Nov '13

#8134: ghc enters a loop while building 7.6.3 for powerpc64 platform. -----------------------------+------------------------------------- Reporter: k0da | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.6.3 Component: Compiler | Version: 7.6.3 Keywords: | Operating System: Unknown/Multiple Architecture: powerpc64 | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | -----------------------------+------------------------------------- It enters a loop around 3414s] "/home/abuild/rpmbuild/BUILD/ghc-boot/bin/ghc" -M -dep-makefile compiler/stage1/build/.depend-v.haskell.tmp -include-pkg-deps -H32m -O -package-db libraries/bootstrapping.conf -package-name ghc-7.6.3 -hide- all-packages -i -icompiler/basicTypes -icompiler/cmm -icompiler/codeGen -icompiler/coreSyn -icompiler/deSugar -icompiler/ghci -icompiler/hsSyn -icompiler/iface -icompiler/llvmGen -icompiler/main -icompiler/nativeGen -icompiler/parser -icompiler/prelude -icompiler/profiling -icompiler/rename -icompiler/simplCore -icompiler/simplStg -icompiler/specialise -icompiler/stgSyn -icompiler/stranal -icompiler/typecheck -icompiler/types -icompiler/utils -icompiler/vectorise -icompiler/stage1/build -icompiler/stage1 ... building 7.6.1 didn't had such problem strace shows: futex(0x1002420f97c, FUTEX_WAIT_PRIVATE, 1137, NULL) = ? ERESTARTSYS (To be restarted) --- SIGVTALRM (Virtual timer expired) @ 0 (0) --- rt_sigreturn(0x1a) = -1100117768572 futex(0x1002420f97c, FUTEX_WAIT_PRIVATE, 1137, NULL) = ? ERESTARTSYS (To be restarted) --- SIGVTALRM (Virtual timer expired) @ 0 (0) --- rt_sigreturn(0x1a) = -1100117768572 futex(0x1002420f97c, FUTEX_WAIT_PRIVATE, 1137, NULL) = ? ERESTARTSYS (To be restarted) --- SIGVTALRM (Virtual timer expired) @ 0 (0) --- rt_sigreturn(0x1a) = -1100117768572 futex(0x1002420f97c, FUTEX_WAIT_PRIVATE, 1137, NULL) = ? ERESTARTSYS (To be restarted) --- SIGVTALRM (Virtual timer expired) @ 0 (0) --- rt_sigreturn(0x1a) = -1100117768572 futex(0x1002420f97c, FUTEX_WAIT_PRIVATE, 1137, NULL) = ? ERESTARTSYS (To be restarted) --- SIGVTALRM (Virtual timer expired) @ 0 (0) --- rt_sigreturn(0x1a) = -1100117768572 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8134> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #5987: Too many symbols in ghc package DLL
by GHC 04 Nov '13

04 Nov '13

#5987: Too many symbols in ghc package DLL -------------------------------------+------------------------------------ Reporter: igloo | Owner: thoughtpolice Type: bug | Status: new Priority: highest | Milestone: 7.8.1 Component: Compiler | Version: 7.5 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: 3658 | Related Tickets: -------------------------------------+------------------------------------ Changes (by shelarcy): * cc: shelarcy@… (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5987#comment:26> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8483: Use addDependentFile in Language.Haskell.TH.Syntax.quoteFile
by GHC 03 Nov '13

03 Nov '13

#8483: Use addDependentFile in Language.Haskell.TH.Syntax.quoteFile -------------------------------------+------------------------------------- Reporter: aavogt | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: libraries (other) | Version: 7.6.3 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | -------------------------------------+------------------------------------- Users should expect ghc to recompile when those files change. Also the documentation should reflect that no spaces are stripped from the filename. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8483> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8256: adding locality levels to prefetch# and friends
by GHC 03 Nov '13

03 Nov '13

#8256: adding locality levels to prefetch# and friends ------------------------------------+------------------------------------- Reporter: carter | Owner: carter Type: task | Status: new Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #8252 ,#8107 | ------------------------------------+------------------------------------- currently in HEAD / 7.7, the prefetch primop only does the equivalent of __builtin_prefetch(ptr,0,3) (0 here denoting a read prefetch, 3 denoting "high locality, keep this in cache for a while") On modern hardware, we can do better! For many natural use case of prefetch in haskell, we have a streaming workload, so we want a prefetch to also hint that "once we've worked on a piece of memory, no need to keep it around for any period of time, don't pollute our memory with it" the attached patch takes each prefetchBlah# operation (where blah=ByteArray,MutableByteArray, or Addr) and replaces it with prefetchBlah0# through prefetchBlah3#, and passes the integer information through into the code generators. To make the engineering reasonable, I enriched MO_Prefetch_Data with an Int parameter (which must be a value between ranging 0-3). Theres probably a better way to model the locality paramter, but that maps directly to how its used in llvm code gen. This patch does not include a test case yet. (interestingly, currently the test suite doesn't have any tests for the prefetch primops as yet!). So that needs to be added. Also, theres no good reason for the prefetch ops to be LLVM only. worst case we could just treat them as noop's and drop them. But at least for x86, should be easy to add the support (though if anyone wants to add support for the ppc and sparc stuff, or help me do that, that'd be awesome too!) . I"ll look into doing that in a few days. theres probably some other things i'm overlooking. anyways, i'll attach a preliminary patch for feedback now -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8256> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7359: unix-2.6.0.0 fails to install on mac os x with 7.4.* (works with 7.6.1)
by GHC 03 Nov '13

03 Nov '13

#7359: unix-2.6.0.0 fails to install on mac os x with 7.4.* (works with 7.6.1) -----------------------------------+---------------------------------- Reporter: AndreasVoellmy | Owner: Type: bug | Status: new Priority: highest | Milestone: 7.6.3 Component: libraries/unix | Version: 7.4.1 Resolution: | Keywords: unix package Operating System: MacOS X | Architecture: x86_64 (amd64) Type of failure: Other | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -----------------------------------+---------------------------------- Comment (by hvr): Replying to [comment:10 MtnViewMark]: > The unix package is supplied with GHC. You can't, in general, just use a different version. Haskell Platform 2012.4 ships with GHC 7.4.1, which includes unix-2.5.1.1. I wouldn't expect unix-2.6.x.y to work with GHC 7.4.1 at all. Fwiw, the soon to be released `unix-2.7.0.0` package should work with GHC 7.4.x, GHC 7.6.x, and (obviously) GHC 7.8.x (See also [https://travis- ci.org/ghc/packages-unix current TravisCI build status]) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7359#comment:14> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1480: Template Haskell should allow reification of modules
by GHC 02 Nov '13

02 Nov '13

#1480: Template Haskell should allow reification of modules ----------------------------+---------------------------------------------- Reporter: igloo | Owner: Type: feature | Status: closed request | Milestone: 7.8.1 Priority: highest | Version: 7.7 Component: | Keywords: Template Haskell | Architecture: Unknown/Multiple Resolution: fixed | Difficulty: Moderate (less than a day) Operating System: | Blocked By: Unknown/Multiple | Related Tickets: Type of failure: | None/Unknown | Test Case: | Blocking: 8398 | ----------------------------+---------------------------------------------- Changes (by thoughtpolice): * status: patch => closed * resolution: => fixed Comment: Merged, thanks! -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1480#comment:19> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7753: Profiling report broken with foreign exported functions
by GHC 02 Nov '13

02 Nov '13

#7753: Profiling report broken with foreign exported functions ---------------------------------+------------------------------------ Reporter: akio | Owner: Type: bug | Status: closed Priority: normal | Milestone: 7.8.1 Component: Profiling | Version: 7.6.2 Resolution: fixed | Keywords: Operating System: Linux | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: ---------------------------------+------------------------------------ Changes (by thoughtpolice): * status: patch => closed * resolution: => fixed Comment: Merged, thanks! -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7753#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7753: Profiling report broken with foreign exported functions
by GHC 02 Nov '13

02 Nov '13

#7753: Profiling report broken with foreign exported functions ---------------------------------+------------------------------------ Reporter: akio | Owner: Type: bug | Status: patch Priority: normal | Milestone: 7.8.1 Component: Profiling | Version: 7.6.2 Resolution: | Keywords: Operating System: Linux | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: ---------------------------------+------------------------------------ Comment (by thoughtpolice): Merged, thank you Takano! -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7753#comment:5> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8322: Report all missing module, not just the first or last
by GHC 02 Nov '13

02 Nov '13

#8322: Report all missing module, not just the first or last ------------------------------------+------------------------------------- Reporter: nomeata | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- This is a usability issue bothering me for a while, so I’ll write it down (and potentially attempt to solve it myself). Given `Imports.hs` with {{{ import ABC import XYZ }}} with `ghc -c Imports.hs` I get {{{ Imports.hs:1:1: Failed to load interface for ‛ABC’ Use -v to see a list of the files searched for. }}} When I would want {{{ Imports.hs:1:1: Failed to load interface for ‛ABC’ Use -v to see a list of the files searched for. Imports.hs:2:1: Failed to load interface for ‛XYZ’ Use -v to see a list of the files searched for. }}} Interestingly, with `-c` ghc reports (just) the first, with `--make` (just) the last import... -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8322> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7753: Profiling report broken with foreign exported functions
by GHC 02 Nov '13

02 Nov '13

#7753: Profiling report broken with foreign exported functions ---------------------------------+------------------------------------ Reporter: akio | Owner: Type: bug | Status: patch Priority: normal | Milestone: 7.8.1 Component: Profiling | Version: 7.6.2 Resolution: | Keywords: Operating System: Linux | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: ---------------------------------+------------------------------------ Comment (by Austin Seipp <austin@…>): In [changeset:"773365f91ff141ad38e929844c901ecd5465a000/ghc"]: {{{ #!CommitTicketReference repository="ghc" revision="773365f91ff141ad38e929844c901ecd5465a000" rts_apply uses CCS_MAIN rather than CCS_SYSTEM (#7753) Signed-off-by: Austin Seipp <austin(a)well-typed.com> }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7753#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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