GHC crash instead of compile error on GHC 8.2 with ApplicativeDo
I'm filing this a sa proxy for user sam2_
from IRC:
$ cat Bug.hs
{-# LANGUAGE ApplicativeDo #-}
module Bug where
doc = do
() <- a
() <- b
c' <- c
return d
$ ghc-8.2.1 Bug.hs
[1 of 1] Compiling Bug ( Bug.hs, Bug.o )
ghc: out of memory (requested 1048576 bytes)
$ ghc-8.0.2 Bug.hs
[1 of 1] Compiling Bug ( Bug.hs, Bug.o )
Bug.hs:5:9: error: Variable not in scope: a :: f ()
Bug.hs:6:9: error: Variable not in scope: b :: f ()
Bug.hs:7:9: error: Variable not in scope: c :: f a0
Bug.hs:8:10: error: Variable not in scope: d
Trac metadata
Trac field | Value |
---|---|
Version | 8.2.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | nh2 |
Operating system | |
Architecture |