Purpose of bidirectional rewrite! #222
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mwillsey
silversquirl
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egg will not apply a unidirectional rewrite in both directions. However,
the equivalences found by a rewrite (uni- or bi-directional) are
bidirectional. For example, if your e-graph contains only `x + x` and you
run the rewrite `2 * x => x + x`, nothing will happen. However if both `x +
x` and `2 * x` were in the e-graph to begin with, then it would fire.
…On Tue, Dec 13, 2022 at 5:36 PM Silver ***@***.***> wrote:
rewrite! has a bidirectional variant: rewrite!("name"; "pattern" <=>
"subst")
However, egg will happily apply a regular unidirectional rule in reverse.
What is the purpose of the bidirectional form of rewrite!?
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rewrite!has a bidirectional variant:rewrite!("name"; "pattern" <=> "subst")However, egg will happily apply a regular unidirectional rule in reverse. What is the purpose of the bidirectional form of
rewrite!?Beta Was this translation helpful? Give feedback.
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