Use Data.List.dropWhileEnd
The GHC tree has many instances of reverse . dropWhile ... . reverse. As well as being harder to read and work with (searching for those forms led me to discover #9616 (closed)) this approach is less efficient than dropWhileEnd. I think I've found all the places this is used, and I'll submit a patch to fix all the instances except for tests and nofib.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.8.3 |
| Type | Task |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
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| Architecture |