!746: Document how -O3 is handled by GHC · Merge requests · Glasgow Haskell Compiler / GHC

Giles Anderson requested to merge agander/ghc:#12461 into master Apr 09, 2019

-O2 is the highest value of optimization. -O3 will be reverted to -O2. Refers to #12461 (closed).

Tested a build with:

nix-shell ./ghc.nix/ --run 'hadrian/build.sh -j --flavour=devel2 --freeze1 --verbose docs'

but couldnt get this incremental build command to work:

nix-shell ./ghc.nix/ --run 'hadrian/build.sh -j --flavour=devel2 --freeze1 --verbose _build/docs/pdfs/users_guide.pdf'

Edited Apr 13, 2019 by Ben Gamari

Document how -O3 is handled by GHC