Skip to content

Error Dealing with Unboxed Types and Type Families

Hello, I was playing with unboxed types and this happened:

[2 of 2] Compiling Data.Unbox ( Data/Unbox.hs, .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/Data/Unbox.o ) ghc: panic! (the 'impossible' happened)

(GHC version 8.0.1 for x86_64-unknown-linux):

pprIfaceCo

I will attach the relevant file.

Trac metadata
Trac field Value
Version 8.0.1
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information