[GHC] #10012: Cheap-to-compute values aren't pushed into case branches inducing unnecessary register pressure
GHC
ghc-devs at haskell.org
Fri Apr 22 09:23:11 UTC 2016
#10012: Cheap-to-compute values aren't pushed into case branches inducing
unnecessary register pressure
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Reporter: bgamari | Owner: bgamari
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.8.4
Resolution: | Keywords:
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 bgamari):
Replying to [comment:8 simonpj]:
> There's something wrong with the example: far from being used in both
branches, `fa` and `fb` are dead bindings.
Oh dear, yes, sorry about that. I was a bit hurried in submitting. This
should be fixed now.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10012#comment:9>
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