Segmentation fault/access violation in generated code

F:\Temp\supero\supero-msg\tak>ghc --make Main_.hs -o foo -O2
[1 of 1] Compiling Main             ( Main_.hs, Main_.o )
Linking foo.exe ...

F:\Temp\supero\supero-msg\tak>foo 24 16 8
Segmentation fault/access violation in generated code

F:\Temp\supero\supero-msg\tak>ghc --version
The Glorious Glasgow Haskell Compilation System, version 6.8.1

Windows XP. The test case is rather big, and needs reducing - I'll come back and do that in a few days time unless anyone beats me to it (I have a paper deadline in 23 hours...)

Trac metadata

Trac field	Value
Version	6.8.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
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