Rust/Swift: Cache Element.toString#18968
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redsun82 merged 2 commits intogithub:mainfrom Mar 17, 2025
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| module Impl { | ||
| class Decl extends Generated::Decl { | ||
| override string toString() { result = super.toString() } | ||
| override string toStringImpl() { result = super.toStringImpl() } |
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Rebased to resolve merge conflict. |
redsun82
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Mar 17, 2025
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Swift integration tests failure is a timeout flake, merging this now |
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Sadly, we cannot put the
cachedannotation directly on the existingtoStringpredicate, as that introduces spurious non-monotonicity errors (the non-monotonicity checker considerscachedpredicates to be black-boxes). Instead, we add an intermediatetoStringImplpredicate, which acts like the previoustoStringpredicate, and then cache the newtoStringpredicate, which simply forwards totoStringImpl.DCA shows a nice average 7% analysis time speedup.