Core Prep sometimes generates case of type lambda
Found something odd when updating the test case for T13156: Core Prep will turn
let f = \@a -> case ...
in case f @ Any of ...into
case (\@a -> case ...) of f { __DEFAULT ->
case f @ Any of ...because f is demanded and not an HNF. Seems like this is turning a lazy binding into a strict one since that \@a is about to be erased, but I haven't investigated.
(Assigning to myself to put together a proper test case at least.)
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |