Bit manipulation built-ins
So far Haskell/GHC lacks more HL bit manipulation instructions which on many platform can be compiled to single instruction. Probably the good guide are those implemented in LLVM:
- byte swap
- population count
- number of leading zeros
- number of trailing zeros
All of them can be implemented in terms of Data.Bits - however not quite in efficient way (like looping over patterns).
Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.12.2 |
| Type | FeatureRequest |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | libraries/base |
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