Re: [GHC] #11572: BangPatterns-related behavior regressions on GHC 8.0

#11572: BangPatterns-related behavior regressions on GHC 8.0 -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: Type: bug | Status: new Priority: highest | Milestone: 8.0.1 Component: Compiler | Version: 8.0.1-rc2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Simon Peyton Jones ): In [changeset:"01449eb552daa082e46ceaaf8481708ee73dc2ad/ghc" 01449eb/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="01449eb552daa082e46ceaaf8481708ee73dc2ad" Fix desugaring of bang-pattern let-bindings When implementing Strict Haskell, the patch 46a03fbe didn't faithfully implement the semantics given in the manual. In particular there was an ad-hoc case in mkSelectorBinds for "strict and no binders" that didn't work. This patch fixes it, curing Trac #11572. Howver it forced me to think about banged let-bindings, and I rather think we do not have quite the right semantics yet, so I've opened Trac #11601. }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11572#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler