[GHC] #6087: Join points need strictness analysis

[GHC]

#6087: Join points need strictness analysis
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        Reporter:  simonpj           |                Owner:  (none)
            Type:  bug               |               Status:  infoneeded
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  7.4.1
      Resolution:                    |             Keywords:  JoinPoints
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:                    |
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Comment (by simonpj):

 Interesting.

 * These are `-O` vs `-O + late-dmd-anal` I assume.  It'd be worth doing
 the same with `-O2` vis `-O2 + late-dmd-anal`

 * Did you recompile all the libraries, or just nofib?

 * A 4.6% increase in compiler allocations and compile time.

 * We get some small wins.

 * Can you see what is happening with the 5% allocation increase in `mate`?

 * I think that HEAD has indeed abandoned the "clever .hi file scheme", so
 we don't need to worry about that part.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/6087#comment:20>
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