Mon Oct 29 10:06:20 PDT 2007 [EMAIL PROTECTED]
* Fix LiberateCase
Merge to STABLE please
Liberate case was being far too gung-ho about what to specialise. This
bug only showed up when a recursive function 'f' has a nested recursive
function 'g', where 'g' calls 'f' (as well as recursively calling 'g').
This exact situation happens in GHC/IO.writeLines.
This patch puts things right; see Note [When to specialise]. Result:
much less code bloat.
M ./compiler/simplCore/LiberateCase.lhs -40 +47
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