[GHC] #8134: ghc enters a loop while building 7.6.3 for powerpc64 platform.
GHC
ghc-devs at haskell.org
Wed Sep 18 14:06:54 CEST 2013
#8134: ghc enters a loop while building 7.6.3 for powerpc64 platform.
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Reporter: k0da | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 7.6.3
Component: Compiler | Version: 7.6.3
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture: powerpc64
Type of failure: None/Unknown | Difficulty: Unknown
Test Case: | Blocked By:
Blocking: | Related Tickets:
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Comment (by Simon Peyton Jones <simonpj@…>):
In [changeset:8cfbdccb7f8716c2b6b13b3c7884f52b1087d782/ghc]:
{{{
#!CommitTicketReference repository="ghc"
revision="8cfbdccb7f8716c2b6b13b3c7884f52b1087d782"
Accommodate Derived constraints in two places (fix Trac #8129, #8134)
If we have
class (F a ~ b) => C a b
then we can produce *derived* CFunEqCans. These were not being
treated properly in two places:
a) in TcMType.zonkFlats (Trac #8134)
b) in TcSMonad.prepareInertsForImplications (Trac #8129)
This patch fixes both.
}}}
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8134#comment:5>
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