[GHC] #14750: Plugins should be loaded once for each module rather than multiple times

[GHC]

#14750: Plugins should be loaded once for each module rather than multiple times
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        Reporter:  mpickering        |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.2
      Resolution:                    |             Keywords:  plugins
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by mpickering):

 * cc: lazar (removed)
 * cc: lazac (added)


Old description:

> Plugins are currently loaded immediately before they are used in the
> simplifier and constraint solver. It would be better to load them once,
> at the start of the pipeline rather than at each of these different
> places.
>
> lazer already has a patch which achieves this. I'm making it a separate
> ticket as it need not be blocked on the progress of #14709

New description:

 Plugins are currently loaded immediately before they are used in the
 simplifier and constraint solver. It would be better to load them once, at
 the start of the pipeline rather than at each of these different places.

 lazac already has a patch which achieves this. I'm making it a separate
 ticket as it need not be blocked on the progress of #14709

--

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14750#comment:1>
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