#5916: runST isn't free
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Reporter: tibbe | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.4.1
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: None/Unknown
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Comment(by tibbe):
I locally defined my own versions of `runST` and `runSTRep`, which I
inlined in the last phase. I looked at the core and validated that in my
particular case nothing bad had happened. This let me measure the actual
performance difference: 7% on my particular benchmark. In addition it let
me move back to nice, clean code.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5916#comment:7>
GHC <http://www.haskell.org/ghc/>
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