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int-index/7.10.3.out

Created May 22, 2016 11:47
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Pattern synonyms GHCi 8.0 regression
Raw
7.10.3.out
GHCi, version 7.10.3: http://www.haskell.org/ghc/ :? for help
Prelude> :l M.hs
[1 of 1] Compiling Main ( M.hs, interpreted )
Ok, modules loaded: Main.
*Main>
Raw
8.0.1.out
GHCi, version 8.0.1: http://www.haskell.org/ghc/ :? for help
Prelude> :l M.hs
[1 of 1] Compiling Main ( M.hs, interpreted )
ghc: panic! (the 'impossible' happened)
(GHC version 8.0.1 for x86_64-unknown-linux):
kindPrimRep.go rep_a18a
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
Raw
M.hs
{-# LANGUAGE PatternSynonyms #-}
data T = C
pattern P :: T
pattern P = C
pattern P' :: T
pattern P' = P
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