ghc: panic! (the 'impossible' happened)
I'm not sure *why* this is happening, but I know where. The code for this library is available here: http://hub.darcs.net/alex404/hsl-random
So as is, I can run the script called multivariate and get the expected results, but when I try to compile I get
ghc: panic! (the 'impossible' happened)
(GHC version 7.8.2 for x86_64-unknown-linux):
attempt to prod-split usage call demand C(C1(U(U,U,U,U,U,U)))
If at line 317 in Scientific.Random.Distributions.hs, I replace the statement sgma = ... with sgma = undefined, the code will compile, though obviously it cannot be used. If I transform the code in other ways which are meant to preserve the results, I can get it to compile, but then the script hangs.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.8.2 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |