#6111: Simple loop performance regression of 7.4.1 relative to 7.0.4
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Reporter: mdgabriel | Owner: igloo
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.4.1
Keywords: Loop performance regression | Os: Linux
Architecture: x86 | Failure: Runtime performance
bug
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: #6110 |
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Comment(by simonmar):
This is related to #5888, which also demands more rules for Integer.
The reason the rules are all in `PrelRules`, as I understand it, is
because they need to work with Integer constants which are now a Core
literal. I agree the design should really be written down somewhere, we
did go through a few iterations to arrive at this point and it would be
good to record why (I'm sure Ian left some Notes in the code too though).
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6111#comment:2>
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