#3963: Entered absent arg
---------------------------------+------------------------------------------
Reporter: LouisWasserman | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 6.12.3
Component: Compiler | Version: 6.12.1
Keywords: | Difficulty:
Os: Unknown/Multiple | Testcase:
Architecture: Unknown/Multiple | Failure: None/Unknown
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Changes (by simonpj):
* status: infoneeded => new
Comment:
Louis: with this patch a few days back I fixed a bug that was causing a
genuine "entered absent arg" bug
{{{
Mon May 3 16:16:30 GMT Daylight Time 2010 Simon PJ
<[email protected]>
* Make the demand analyser take account of lambda-bound unfoldings
This is a long-standing lurking bug. See Note [Lamba-bound unfoldings]
in DmdAnal.
I'm still not really happy with this lambda-bound-unfolding stuff.
M ./compiler/simplCore/Simplify.lhs -1 +11
M ./compiler/stranal/DmdAnal.lhs -6 +26
}}}
Can you see if the bug still occurs with this patch? And if so, as Ian
asks, give more details of what actually happens. Thanks
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3963#comment:3>
GHC <http://www.haskell.org/ghc/>
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