- ghc-tickets - Haskell.org

Re: [GHC] #7978: Profiling broken
by GHC 21 Jul '13

21 Jul '13

#7978: Profiling broken --------------------------------------------+------------------------------ Reporter: gmainland | Owner: Type: bug | Status: new Priority: highest | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHC doesn't work at all | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: --------------------------------------------+------------------------------ Comment (by igloo): ezyang, can you please paste an example of a test failing due to a segfault? -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7978#comment:7> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0

[GHC] #8049: Missing documentation for the default warnings -fwarn-alternative-layout-rule-transitional and -fwarn-pointless-pragmas
by GHC 21 Jul '13

21 Jul '13

#8049: Missing documentation for the default warnings -fwarn-alternative-layout- rule-transitional and -fwarn-pointless-pragmas ------------------------------------+------------------------------------- Reporter: asr | Owner: Type: bug | 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: | ------------------------------------+------------------------------------- From `compiler/main/DynFlags.hs` the warnings `-fwarn-alternative-layout- rule-transitional` and `-fwarn-pointless-pragmas` are default warnings, but (i) there is no documentation for the warnings and (ii) they are not listed as default warnings in the beginning of http://www.haskell.org/ghc/docs/7.6.3/html/users_guide/options- sanity.html. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8049> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 3

[GHC] #8076: `prompt2` not honoured in `:set +m`-style continuations
by GHC 21 Jul '13

21 Jul '13

#8076: `prompt2` not honoured in `:set +m`-style continuations ------------------------------------+------------------------------------- Reporter: hvr | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | 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: | ------------------------------------+------------------------------------- When the continuation prompt became customizable via bc44435dc2f6cda1071c68b79ace5b390a89244c adapting the prompt for the `:set +m`-style continuation was missed, leaving it hardcoded to `"%s| "`. This is already mentioned in ticket:8051#comment:1, but to make sure this isn't lost, I've created this separate ticket. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8076> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 1

[GHC] #8075: `:show imports` unknown to tab-completion
by GHC 21 Jul '13

21 Jul '13

#8075: `:show imports` unknown to tab-completion ------------------------------------+------------------------------------- Reporter: hvr | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | 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: | ------------------------------------+------------------------------------- when pressing `TAB` after `:show `, `:show imports` is not offered by GHCi, i.e.: {{{ Prelude> :show args breaks editor linker packages prompt bindings context language modules prog stop Prelude> :show }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8075> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 1

[GHC] #8074: `:show linker` not mentioned in `:help`
by GHC 21 Jul '13

21 Jul '13

#8074: `:show linker` not mentioned in `:help` ------------------------------------+------------------------------------- Reporter: hvr | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 7.6.1 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- GHCi's current `:help` output doesn't mention the `:show linker` sub- command, for displaying the current linker state -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8074> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 1

[GHC] #8072: Optimizations change result of div for Word
by GHC 21 Jul '13

21 Jul '13

#8072: Optimizations change result of div for Word -----------------------------+------------------------------------- Reporter: Khudyakov | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Keywords: | Operating System: Unknown/Multiple Architecture: x86 | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | -----------------------------+------------------------------------- Here is test case {{{ import Data.Word main :: IO () main = do print $ (maxBound :: Word) `div` 101 }}} And result of execution {{{ $ ghc -fforce-recomp -O2 --make reduce.hs && ./reduce [1 of 1] Compiling Main ( reduce.hs, reduce.o ) Linking reduce ... 2891661149 @{debian:0}~/qqq/mwc $ ghc -fforce-recomp --make reduce.hs && ./reduce [1 of 1] Compiling Main ( reduce.hs, reduce.o ) Linking reduce ... 42524428 }}} Bug is only present on 32-bit systems. It goes away if rewrite rules are disable with -fno-enable-rewrite-rules or anything but maxBound is used as first argument or second argument is forced to be a funcion argument. So it could be bug in constant folding. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8072> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 7

Re: [GHC] #6050: Documentation for option -Wall and warning -fwarn-unrecognised-pragmas
by GHC 21 Jul '13

21 Jul '13

#6050: Documentation for option -Wall and warning -fwarn-unrecognised-pragmas --------------------------------------+------------------------------------ Reporter: asr | Owner: Type: bug | Status: closed Priority: normal | Milestone: _|_ Component: Documentation | Version: 7.6.3 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: Documentation bug | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: --------------------------------------+------------------------------------ Changes (by igloo): * status: new => closed * resolution: => fixed Comment: Thanks for the report; fixed by commit 7cbce1d2e4f076b2e53bbec93cdbdcf7e541a505 {{{ Author: Ian Lynagh <ian(a)well-typed.com> Date: Sun Jul 21 19:43:40 2013 +0100 Sync the list of default warnings with reality; fixes #8060. }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/6050#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0

Re: [GHC] #7978: Profiling broken
by GHC 21 Jul '13

21 Jul '13

#7978: Profiling broken --------------------------------------------+------------------------------ Reporter: gmainland | Owner: Type: bug | Status: new Priority: highest | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHC doesn't work at all | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: --------------------------------------------+------------------------------ Changes (by simonmar): * priority: normal => highest * milestone: => 7.8.1 Comment: release blocker. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7978#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0

Re: [GHC] #7883: enable GHC LLVM backend to use LLVM provided CAS / Atomicity primitives?
by GHC 21 Jul '13

21 Jul '13

#7883: enable GHC LLVM backend to use LLVM provided CAS / Atomicity primitives? -------------------------------------+------------------------------------ Reporter: carter | Owner: carter Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by carter): Theres a few other bits that need to be added to the ticket based upon the discussion on list, but one that hasn't been addressed is how to support both compiling to a "sequential" version as well as the "-threaded" ATOMIC analogues based upon which RTS is linked into the application -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7883#comment:10> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0

Re: [GHC] #7978: Profiling broken
by GHC 20 Jul '13

20 Jul '13

#7978: Profiling broken --------------------------------------------+------------------------------ Reporter: gmainland | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHC doesn't work at all | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: --------------------------------------------+------------------------------ Comment (by ezyang): There are also a multitude of profasm/prof/profthreaded tests which are still failing. Here is a partial list: {{{ codeGen/should_run cgrun057 [bad stderr] (profasm,profthreaded) concurrent/should_run T367 [bad exit code] (profasm,ghci,profthreaded) indexed-types/should_compile T4492 [exit code non-0] (profasm) indexed-types/should_compile T7837 [stderr mismatch] (profasm) profiling/should_run T680 [bad profile] (profasm,profthreaded,prof) profiling/should_run callstack001 [bad stdout] (prof) profiling/should_run prof-doc-last [bad profile] (profasm,profthreaded,prof) quasiquotation/qq007 qq007 [exit code non-0] (profasm) quasiquotation/qq008 qq008 [exit code non-0] (profasm) simplCore/should_compile T5550 [exit code non-0] (profasm) simplCore/should_compile T7702 [exit code non-0] (profasm) }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7978#comment:5> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0