#1168: Optimisation sometimes decreases sharing in IO code
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Reporter: simonmar | Owner:
Type: bug | Status: new
Priority: normal | Milestone: _|_
Component: Compiler | Version: 6.6
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: nofib/spectral/calendar | Architecture: Unknown
Os: Unknown |
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Comment (by ChrisKuklewicz):
This just came up on the mailing list again. The program was slow unless
(-fno-state-hack) was used.
Is it possible to have GHC emit a warning (as part of -Wall) to let the
use know that GHC is applying a potentially risky simplification?
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1168#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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