GHC.Real.gcdInt is no longer optimized.
This is a regression since ghc-7.2, related to #5767 (closed). GHC.Real defines
gcdInt :: Int -> Int -> Int
gcdInt a b = fromIntegral (gcdInteger (fromIntegral a) (fromIntegral b))which used to optimize to GHC.Integer.Type.gcdInt. But since fromInteger = integerToInt and fromIntegral = smallInteger are no longer inlined, this optimization is lost. This results in unecessary allocations.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.5 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | libraries/base |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |