[ ghc-Bugs-419150 ] Implicit Params cause core dump!

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Bugs item #419150, was updated on 2001-04-26 07:57
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Category: Compiler
Group: 5.00
>Status: Closed
>Resolution: Fixed
Priority: 7
Submitted By: Jeffrey R. Lewis (lewie)
Assigned to: Nobody/Anonymous (nobody)
Summary: Implicit Params cause core dump!

Initial Comment:
GHC 5.0 compiles the following to a program that dumps
core:

main = putStr $ show $ foo with ?x = 13

foo :: (?x :: Int) => Int
foo = ?x

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>Comment By: Simon Peyton Jones (simonpj)
Date: 2001-05-03 01:45

Message:
Logged In: YES 
user_id=50165

This was a serious bug in tcSimlifyIPs.  Very likely some 
of the other strange behaviour of IPs was due to this.  
Fixed now; needs merging into branch.

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You can respond by visiting: 
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