#2680: Type-checking performance regression
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Reporter: igloo | Owner:
Type: compile-time performance bug | Status: new
Priority: high | Milestone: 6.10.1
Component: Compiler (Type checker) | Version: 6.8.3
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: Unknown/Multiple
Os: Unknown/Multiple |
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Comment (by igloo):
Vec isn't the same problem. There's a twisty maze of fundeps and
undecidable instances is on; I'm not sure if the problem is in the code or
GHC. If anyone wants to look, the `Det'` instance starting on line 371 of
`Data/Vec/LinAlg.hs` seems to be the (or at least, a) cause of non-
termination.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2680#comment:5>
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