#2462: Data.List.sum is slower than 6.8.3
-----------------------------------------+----------------------------------
Reporter: simonmar | Owner:
Type: run-time performance bug | Status: new
Priority: high | Milestone: 6.10.1
Component: Compiler | Version: 6.8.3
Severity: normal | Keywords:
Difficulty: Unknown | Testcase:
Architecture: Unknown | Os: Unknown
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{{{
main = print (sum [1..100000000::Int])
}}}
with 6.8.3:
{{{
MUT time 1.76s ( 1.79s elapsed)
}}}
with HEAD (22/7/08)
{{{
MUT time 1.97s ( 1.99s elapsed)
}}}
complete guess: sum has been mis-optimised by SAT?
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2462>
GHC <http://www.haskell.org/ghc/>
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