https://phabricator.haskell.org/D1880
2016-02-01 18:04 GMT-05:00 Simon Peyton Jones <simo...@microsoft.com>: > Those fields are dead, now that the Cmm pass deals with it. We left it in > while making the transition, but they can go now. Go ahead! > > (Lots of code should disappear along with them!) > > Simon > > | -----Original Message----- > | From: ghc-devs [mailto:ghc-devs-boun...@haskell.org] On Behalf Of Ömer Sinan > | Agacan > | Sent: 01 February 2016 22:06 > | To: ghc-devs <ghc-devs@haskell.org> > | Subject: StgCase - are LiveVars and SRT fields going to be used? > | > | Hi all, > | > | This is how case expression in STG currently defined: > | > | > | | StgCase > | (GenStgExpr bndr occ) > | (GenStgLiveVars occ) > | (GenStgLiveVars occ) > | bndr > | SRT > | AltType > | [GenStgAlt bndr occ] > | > | > | The GenStgLiveVars and SRT fields are never used anywhere in the compiler > | (except the printer). So the question is, I'm assuming those were used at > | some > | point, but are they going to be used in the future? Or can I just delete > | those? > | > | As a proof of concept, I just compiled GHC using this: > | > | > | | StgCase > | (GenStgExpr bndr occ) > | bndr > | AltType > | [GenStgAlt bndr occ] > | > | > | Normally this is not a big deal, but I'm doing lots of STG-to-STG > | transformations nowadays, and I have to keep those field updated which is > | annoying as those are never going to be used (I can't even know if I'm doing > | it > | right), or leave those `undefined` which is not a good practice. > | _______________________________________________ > | ghc-devs mailing list > | ghc-devs@haskell.org > | > https://na01.safelinks.protection.outlook.com/?url=http%3a%2f%2fmail.haskell. > | org%2fcgi-bin%2fmailman%2flistinfo%2fghc- > | > devs&data=01%7c01%7csimonpj%40064d.mgd.microsoft.com%7c12ca56c8fc514f477f7f08 > | > d32b53f4bc%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=LPiupNbUJ9OGL9cmbP%2f > | PAs2JSdxqlxk%2bGbXuYTHFbzg%3d _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs