[issue1346238] A constant folding optimization pass for the AST

[Raymond Hettinger]

Raymond Hettinger <rhettinger at users.sourceforge.net> added the comment:

David, it would be great if an optional AST optimization pass could do something that we don't already have (perhaps, loop invariant code motion when python is called with -OO or somesuch).  The AST tree makes it possible for the first time to provide some non-trivial optimizations, so aim high.

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<http://bugs.python.org/issue1346238>
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