Changes between Initial Version and Version 7 of Ticket #8550


Ignore:
Timestamp:
Nov 18, 2014 3:46:05 AM (5 years ago)
Author:
thomie
Comment:

Trying to compile the example from the description with ghc-7.9.20141115 results in GHC using lots of memory, making my machine unusable until I kill the process.

This seems like a regression, setting priority to high.

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  • Ticket #8550

    • Property Priority changed from normal to high
    • Property Version changed from 7.6.3 to
    • Property Milestone changed from to 7.10.1
  • Ticket #8550 – Description

    initial v7  
    33{-# LANGUAGE TypeFamilies, GADTs, UndecidableInstances #-}
    44type family F a
    5         type instance F () = F ()
    6         data A where
    7          A :: F () ~ () => A
    8         x :: A
    9         x = A
     5type instance F () = F ()
     6data A where
     7  A :: F () ~ () => A
     8x :: A
     9x = A
     10main = seq A (return ())
    1011}}}
    1112