match: Use an aggregate equality comparison for constant array/slice patterns when possible#155216

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jakubadamw wants to merge 10 commits intorust-lang:mainfrom

jakubadamw:issue-110870-103073

Commits on Apr 26, 2026

Use an aggregate equality comparison for constant array/slice patterns when possible
jakubadamw
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Add a MIR test ensuring we use an aggregate comparison when matching on a large fixed-length array
jakubadamw
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Add another test, a run-pass one
jakubadamw
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Extend both tests with the example from https://github.com/rust-lang/rust/issues/103073
jakubadamw
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Make sure the new aggregate equality comparison is excluded from const contexts
jakubadamw
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Update the tests to cover const contexts as well
jakubadamw
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Raise the aggregate equality comparison threshold so simple arrays don't get captured by this logic
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Merge the AggregateEq and StringEq test arms into a single case
jakubadamw
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Add a missing space
jakubadamw
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Remove the special treatment of the `const_cmp` and `const_trait_impl` features
jakubadamw
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