[GHC] #15002: Panic: collectNBinders
GHC
ghc-devs at haskell.org
Wed Apr 4 19:50:54 UTC 2018
#15002: Panic: collectNBinders
-------------------------------------+-------------------------------------
Reporter: crockeea | Owner: (none)
Type: bug | Status: new
Priority: normal | Milestone: 8.4.2
Component: Compiler | Version: 8.4.2-rc1
Keywords: | Operating System: Unknown/Multiple
Architecture: | Type of failure: Compile-time
Unknown/Multiple | crash or panic
Test Case: | Blocked By:
Blocking: | Related Tickets:
Differential Rev(s): | Wiki Page:
-------------------------------------+-------------------------------------
Steps to reproduce:
Download concurrent-extra-0.7.0.12 and add the following stack.yaml file:
resolver: nightly-2018-04-04
system-ghc: true
compiler-check: newer-minor
{{{
> ghc --version
The Glorious Glasgow Haskell Compilation System, version 8.4.1.20180329
> stack build --library-profiling
concurrent-extra-0.7.0.12: build (lib)
Preprocessing library for concurrent-extra-0.7.0.12..
Building library for concurrent-extra-0.7.0.12..
[7 of 8] Compiling Control.Concurrent.Broadcast (
Control/Concurrent/Broadcast.hs, .stack-
work/dist/x86_64-linux/Cabal-2.2.0.1/build/Control/Concurrent/Broadcast.p_o
)
ghc: panic! (the 'impossible' happened)
(GHC version 8.4.1.20180329 for x86_64-unknown-linux):
collectNBinders
1
Call stack:
CallStack (from HasCallStack):
callStackDoc, called at compiler/utils/Outputable.hs:1150:37 in
ghc:Outputable
pprPanic, called at compiler/coreSyn/CoreSyn.hs:2189:39 in
ghc:CoreSyn
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
-- While building custom Setup.hs for package concurrent-extra-0.7.0.12
using:
/home/local/ANT/ericcro/.stack/setup-exe-cache/x86_64-linux/Cabal-
simple_mPHDZzAJ_2.2.0.1_ghc-8.4.1.20180329 --builddir=.stack-
work/dist/x86_64-linux/Cabal-2.2.0.1 build lib:concurrent-extra --ghc-
options " -ddump-hi -ddump-to-file -fdiagnostics-color=always"
Process exited with code: ExitFailure 1
}}}
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15002>
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