GHC panic
The attached file causes GHC (version 8.1.20160102) panic.
I tried shrinking, attached code is bogus at this point.
Interestingly inlining the type synonym T = Nat
into Category's superclass context fixes the panic, and causes a regular error.
Trac metadata
Trac field | Value |
---|---|
Version | 8.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler (Type checker) |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |