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Gesh
GHC
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96acca9a
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96acca9a
authored
24 years ago
by
Simon Peyton Jones
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[project @ 2000-07-18 14:47:52 by simonpj]
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ghc/compiler/simplCore/SetLevels.lhs
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@@ -29,6 +29,11 @@
This means that a sub-expression involving x is not "trapped" inside the RHS.
And it's not inconvenient because we already have a substitution.
Note that this is EXACTLY BACKWARDS from the what the simplifier does.
The simplifier tries to get rid of occurrences of x, in favour of wild,
in the hope that there will only be one remaining occurrence of x, namely
the scrutinee of the case, and we can inline it.
\begin{code}
module SetLevels (
setLevels,
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