[GHC] #11444: 8.0 rc1 panics in applyTypeToArgs

[GHC]

#11444: 8.0 rc1 panics in applyTypeToArgs
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           Reporter:  osa1           |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.0.1-rc1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 To reproduce, clone https://github.com/rrnewton/haskell-lockfree and
 switch to ghc-8.0 branch. Then run {{{cabal install atomic-primops/}}}
 (note the trailing slash, we don't want to install it from Hackage). It
 should fail with a message like this:

 {{{
 ➜  haskell-lockfree git:(ghc-8.0) ✗ cabal install atomic-primops/
 Warning: The package list for 'hackage.haskell.org' is 25.1 days old.
 Run 'cabal update' to get the latest list of available packages.
 Resolving dependencies...
 Notice: installing into a sandbox located at
 /home/omer/haskell/haskell-lockfree/.cabal-sandbox
 Configuring primitive-0.6.1.0...
 Building primitive-0.6.1.0...
 Warning: /tmp/pkgConf-primitive-0.6.110252023621350490027.0: Unrecognized
 field abi on line 21
 Installed primitive-0.6.1.0
 Configuring atomic-primops-0.8.0.2...
 Building atomic-primops-0.8.0.2...
 Failed to install atomic-primops-0.8.0.2
 Build log ( /home/omer/haskell/haskell-lockfree/.cabal-sandbox/logs
 /atomic-primops-0.8.0.2.log ):
 [1 of 1] Compiling Main             ( atomic-primops/dist/dist-sandbox-
 ad71ba7e/setup/setup.hs, atomic-primops/dist/dist-sandbox-
 ad71ba7e/setup/Main.o )
 Linking atomic-primops/dist/dist-sandbox-ad71ba7e/setup/setup ...
 Configuring atomic-primops-0.8.0.2...
 Building atomic-primops-0.8.0.2...
 Preprocessing library atomic-primops-0.8.0.2...
 [1 of 3] Compiling Data.Atomics.Internal ( Data/Atomics/Internal.hs, dist
 /dist-sandbox-ad71ba7e/build/Data/Atomics/Internal.o )

 Data/Atomics/Internal.hs:69:20: warning:
     Defined but not used: data constructor ‘Ticket’
 [2 of 3] Compiling Data.Atomics.Counter ( Data/Atomics/Counter.hs, dist
 /dist-sandbox-ad71ba7e/build/Data/Atomics/Counter.o )
 [3 of 3] Compiling Data.Atomics     ( Data/Atomics.hs, dist/dist-sandbox-
 ad71ba7e/build/Data/Atomics.o )
 ghc: panic! (the 'impossible' happened)
   (GHC version 8.0.0.20160111 for x86_64-unknown-linux):
         applyTypeToArgs
   Expression: readMutVar# eta_s4sC st_s4sD
   Type: forall d_15 a_12.
         MutVar# d_15 a_12 -> State# d_15 -> (# State# d_15, a_12 #)
   Args: [eta_s4sC, st_s4sD]

 Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

 cabal: Error: some packages failed to install:
 atomic-primops-0.8.0.2 failed during the building phase. The exception
 was:
 ExitFailure 1
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11444>
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