nll: correctly deal with bivariance#104411
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Some changes occurred to the CTFE / Miri engine cc @rust-lang/miri Some changes occurred to MIR optimizations cc @rust-lang/wg-mir-opt |
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RalfJung
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RalfJung
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On a conceptual level this makes sense to me, but I understand absolutely nothing of what goes on inside |
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woops, didn't actually include the changes to the |
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@bors r+ |
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🌲 The tree is currently closed for pull requests below priority 1. This pull request will be tested once the tree is reopened. |
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…rors nll: correctly deal with bivariance fixes rust-lang#104409 when in a bivariant context, relating stuff should always trivially succeed. Also changes the mir validator to correctly deal with higher ranked regions. r? types cc `@RalfJung`
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Rollup of 8 pull requests Successful merges: - rust-lang#104001 (Improve generating Custom entry function) - rust-lang#104411 (nll: correctly deal with bivariance) - rust-lang#104528 (Properly link `{Once,Lazy}{Cell,Lock}` in docs) - rust-lang#104553 (Improve accuracy of asinh and acosh) - rust-lang#104554 (Use `ErrorGuaranteed::unchecked_claim_error_was_emitted` less) - rust-lang#104566 (couple of clippy::perf fixes) - rust-lang#104575 (deduplicate tests) - rust-lang#104580 (diagnostics: only show one suggestion for method -> assoc fn) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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fixes #104409
when in a bivariant context, relating stuff should always trivially succeed. Also changes the mir validator to correctly deal with higher ranked regions.
r? types cc @RalfJung