urk! lookup local fingerprint with -O and TemplateHaskell
An interesting feature of this bug is that it goes away when TemplateHaskell is removed (it's cut down from a much larger test case which actually used that)
-O is also necessary.
ghc -c -O Foo.hs
ghc: panic! (the 'impossible' happened)
(GHC version 6.10.0.20081007 for i386-unknown-mingw32):
urk! lookup local fingerprint main:Foo.:CoActionT{tc rj4}
Trac metadata
Trac field | Value |
---|---|
Version | 6.10.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | ganesh.sittampalam@credit-suisse.com |
Operating system | |
Architecture |