#7553: ghc fails to terminate with -O2 or greater
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Reporter: erikd | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.6.1 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: Compile-time crash | Blockedby:
Blocking: | Related:
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Comment(by erikd):
I've add -ddump-rule-rewrites to the command line and the last rule firing
before it seems to hang with 100% CPU usage is:
{{{
Rule fired
Rule: Class op +
Before: GHC.Num.+
(TYPE GHC.Types.Int) GHC.Num.$fNumInt i1_a2tL (GHC.Types.I#
1)
After: GHC.Num.$fNumInt_$c+
Cont: Stop[BoringCtxt] GHC.Types.Int
}}}
Is this the rule that is hanging or is the next one that has not yet been
displayed?
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7553#comment:1>
GHC <http://www.haskell.org/ghc/>
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