[issue11549] Build-out an AST optimizer, moving some functionality out of the peephole optimizer

[Eugene Toder]

Eugene Toder <eltoder at gmail.com> added the comment:

Nick, if there's an interest in reviewing the patch I can update the it. I doubt it needs a lot of changes, given that visitor is auto-generated.

Raymond, the patch contains a rewrite of low-level optimizations to work before byte code generation, which simplifies them a great deal.

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