[2,4..10] is not a good list producer
I asked about this in @ghc, and Spencer Janssen had to say "enumFromTo is a good producer, but apparently enumFromThenTo is not". This means it doesn't fuse with good list consumers, forM_ in my case.
Trac metadata
Trac field | Value |
---|---|
Version | 6.6 |
Type | FeatureRequest |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | Multiple |
Architecture | Multiple |