More spaceship patterns#7702
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scottmcm
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Dec 18, 2023
| (rule (simplify (select ty _ x x)) x) | ||
| (rule (simplify (bitselect ty _ x x)) x) | ||
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| ;; Push zeroes to the right -- this makes the select `truthy`, as used elsewhere |
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Specifically this truthy part:
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This is a continuation of #7636 that added the spaceship patterns.
In particular, I noticed that what Rust currently does in
sort_byhttps://github.com/rust-lang/rust/blob/bf9229a2e366b4c311f059014a4aa08af16de5d8/library/core/src/slice/mod.rs#L3008
is a simplification pattern that I'd missed, so this adds that, and a couple other related things I saw in the area.