I think it doesn't get inlined because we don't add an unfolding in the definition of `lazyId` in `MkId`.
The definition in `GHC.Magic` is just for documentation I think. Cheers, Matt On Wed, Jul 17, 2019 at 8:46 AM Ömer Sinan Ağacan <omeraga...@gmail.com> wrote: > > Hi Simon, > > I'm trying to understand what's preventing inlining GHC.Magic.lazy. I can see > with -ddump-simpl -ddump-simpl-iterations -ddump-prep that we only eliminate > it > in CorePrep, so it's preserved during simplifications and tidying, but I don't > see how. It doesn't have a NOINLINE pragma, and we don't check whether the id > we're inlining is lazyId (using MkId.lazyId or MkId.lazyIdKey) anywhere in the > compiler as far as I can see. > > I also checked Note [lazyId magic] in MkId, but it doesn't explain how we > avoid > inlining it. > > Could you say a few words on this? > > Thanks > Ömer > _______________________________________________ > ghc-devs mailing list > ghc-devs@haskell.org > http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs