Rule matcher failing to look through an imported inlining
Pedro reported
module M1 where
class MyEnum a where myEnum :: [a]
instance MyEnum () where myEnum = [()]
module M2 where
import M1
f1 = map (\() -> 'p') [()]
f2 = map (\() -> 'q') myEnumThe code for f1 was optimised (by rewrite rules) to
f1 = ['p']but the code for f2 wasn't.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.0.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |
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