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While optimizing these operations proved unfruitful w.r.t. improving compiler performance right now, faster versions might be needed at a later time. This PR adds a link in the FIXME to save any future optimizers some time, as requested by @nnethercote in #94625.

r? @nnethercote

While optimizing these operations proved unfruitful w.r.t. improving
compiler performance right now, faster versions might be needed at a
later time.
@rustbot rustbot added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label Mar 7, 2022
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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @nnethercote (or someone else) soon.

Please see the contribution instructions for more information.

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Mar 7, 2022
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Lovely, thank you.

@bors r+ rollup

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bors commented Mar 7, 2022

📌 Commit 4d38f15 has been approved by nnethercote

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Mar 7, 2022
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bors commented Mar 7, 2022

⌛ Testing commit 4d38f15 with merge 89adcc6...

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bors commented Mar 8, 2022

☀️ Test successful - checks-actions
Approved by: nnethercote
Pushing 89adcc6 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Mar 8, 2022
@bors bors merged commit 89adcc6 into rust-lang:master Mar 8, 2022
@rustbot rustbot added this to the 1.61.0 milestone Mar 8, 2022
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Finished benchmarking commit (89adcc6): comparison url.

Summary: This benchmark run did not return any relevant results.

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

@rustbot label: -perf-regression

// improved, but it hasn't been a problem in practice so far.
// FIXME: This is slow if `other` is dense, but it hasn't been a problem
// in practice so far.
// If a a faster implementation of this operation is required, consider
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tiny typo here and below

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// If a a faster implementation of this operation is required, consider
// If a faster implementation of this operation is required, consider

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Ah, that's stupid, thanks for catching it! Fixes in #94956

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