ghci no longer loads dynamic .o files by default if they were built with -O
In 8.2.1-rc1 loading a file compiled with -O2 into ghci results in ghci recompiling the file into interpreted byte code. In 8.0.2 it simply loads the compiled object file.
- 2.1
ghc -dynamic -O2 eh2.hs
[1 of 1] Compiling Main ( eh2.hs, eh2.o )
Linking eh2 ...
bash-3.2$ ghci -ignore-dot-ghci
GHCi, version 8.2.0.20170404: http://www.haskell.org/ghc/ :? for help
Prelude> :load eh2
[1 of 1] Compiling Main ( eh2.hs, interpreted ) [flags changed]
Ok, modules loaded: Main.- 0.2
ghc --version
The Glorious Glasgow Haskell Compilation System, version 8.0.2
bash-3.2$ pwd
/Users/gcolpitts/haskell
bash-3.2$ ghc -dynamic -O2 eh2.hs
[1 of 1] Compiling Main ( eh2.hs, eh2.o )
Linking eh2 ...
bash-3.2$ ghci -ignore-dot-ghci
GHCi, version 8.0.2: http://www.haskell.org/ghc/ :? for help
Prelude> :load eh2
Ok, modules loaded: Main (eh2.o).Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.0.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | GHCi |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |