[GHC] #13014: Seemingly unnecessary marking of a SpecConstr specialization as a loopbreaker

GHC ghc-devs at haskell.org
Wed Dec 21 08:23:06 UTC 2016


#13014: Seemingly unnecessary marking of a SpecConstr specialization as a
loopbreaker
-------------------------------------+-------------------------------------
        Reporter:  nfrisby           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:  SpecConstr
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by simonpj):

 Can you be more specific about "try very hard"?  The thing is, as far as I
 can see, it ''is'' loop breaker, as my comment shows.  That is, not
 marking it as such would allow arbitrary inlining.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13014#comment:9>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler


More information about the ghc-tickets mailing list