[GHC] #9070: "Simplifier ticks exhausted"

[GHC]

#9070: "Simplifier ticks exhausted"
-------------------------------------+----------------------------------
        Reporter:  dermesser         |            Owner:
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  x86_64 (amd64)
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
-------------------------------------+----------------------------------

Comment (by DinoMorelli):

 carter:

 The project is epub-metadata. Available on Hackage, but I have already
 released a newer version with adjusted -fsimpl-tick-factor, so get the
 prior version:

 {{{
 $ cabal unpack epub-metadata-4.0
 }}}

 The error says:

 {{{
 When trying UnfoldingDone base:GHC.Base.build{v 04}
 }}}

 Still fails with just -fno-full-laziness, but the message changes to:

 {{{
 When trying UnfoldingDone
 hxt-9.3.1.4:Control.Arrow.IOStateListArrow.$fCategory*IOSLA_$c.{v rzUB}
 }}}

 Also, I'm not specifying any -O switches at all, I'm not sure what the
 default optimization level is for GHC.

 simonpj:

 I was wondering about that, if this is normal-ish and just requires
 params.

 Do you need me to provide more details here, perhaps with `-ddump-simpl-
 stats` ?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9070#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler