#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 mdgabriel):
Two individuals looking at #6110 have the __same__ or __better__ times
with their 7.4.1 compared to their 7.0.4. From my point of view, it
appears that the problem in my environment is the coercion from Int to
Double. See #6110 for details, but I confirm for a coercion from Int to
Int or Int to Int64 in the code above that the problem disappears in my
environment.
Did any one compile the example above and confirm that it is slower for
their 7.4.1 compared to their 7.04?
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6111#comment:3>
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