#5569: Ineffective seq/BangPatterns
----------------------------------+-----------------------------------------
Reporter: daniel.is.fischer | Owner: igloo
Type: bug | Status: new
Priority: normal | Milestone: 7.4.1
Component: Compiler | Version: 7.2.1
Keywords: | Testcase:
Blockedby: | Difficulty:
Os: Unknown/Multiple | Blocking:
Architecture: Unknown/Multiple | Failure: Runtime performance bug
----------------------------------+-----------------------------------------
Changes (by igloo):
* owner: => igloo
* milestone: => 7.4.1
Comment:
The bang on the first argument is redundant: Pattern matching is left-to-
right, so `sm` is only forced if the first argument is `0`.
But with your code I'm getting a stack overflow with release builds, but
not validate builds, of 7.2.2. We should investigate.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5569#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
_______________________________________________
Glasgow-haskell-bugs mailing list
[email protected]
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
