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
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