Attempting to do foreign import with unboxed tuple return type causes GHC panic
stefan@stefans:/tmp$ ghc -ddump-asm -fglasgow-exts X.hs
ghc-6.7.20070829: panic! (the 'impossible' happened)
(GHC version 6.7.20070829 for i386-unknown-linux):
resultWrapper
(# base:GHC.Prim.Int#{(w) tc 3G},
base:GHC.Prim.Int#{(w) tc 3G},
base:GHC.Prim.Int#{(w) tc 3G} #)
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
stefan@stefans:/tmp$ cat X.hs
module X where
import GHC.Exts
foreign import ccall unsafe "foo" foo :: Int# -> Int# -> Int# -> (# Int# , Int# , Int# #)
stefan@stefans:/tmp$
- 6.1 and 6.4.2 are also affected.
Trac metadata
Trac field |
Value |
Version |
6.7 |
Type |
Bug |
TypeOfFailure |
OtherFailure |
Priority |
normal |
Resolution |
Unresolved |
Component |
Compiler (FFI) |
Test case |
|
Differential revisions |
|
BlockedBy |
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Related |
|
Blocking |
|
CC |
sorear |
Operating system |
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Architecture |
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