More Prop simplification rules #628
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blishko
reviewed
Jan 6, 2025
| go (PNeg (PNeg a)) = a | ||
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|
||
| -- Empty buf | ||
| go (PEq (Lit 0) (BufLength k)) = peq k (ConcreteBuf "") |
Collaborator
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Are you sure this is a simplification?
Is it better on the SMT level to compare arrays instead of computing buffer length and comparing it to 0?
Collaborator
Author
|
Not entirely sure… the Props look nicer to my human eyes though 😂 I can
remove it if you think it’s all the same/worse. What do you think?
Mate
…On Mon 6. Jan 2025 at 21:54, Martin Blicha ***@***.***> wrote:
***@***.**** commented on this pull request.
------------------------------
In src/EVM/Expr.hs
<#628 (comment)>:
> @@ -1232,6 +1234,9 @@ simplifyProp prop =
go (PNeg (PBool b)) = PBool (Prelude.not b)
go (PNeg (PNeg a)) = a
+ -- Empty buf
+ go (PEq (Lit 0) (BufLength k)) = peq k (ConcreteBuf "")
Are you sure this is a simplification?
Is it better on the SMT level to compare arrays instead of computing
buffer length and comparing it to 0?
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Collaborator
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I think it's OK. I was just thinking that if ever |
Collaborator
Author
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Thanks for the review! |
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Description
Three more prop simplification rules.
Checklist