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| author | Josh Triplett <josh@joshtriplett.org> | 2025-06-05 12:02:04 -0700 |
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| committer | Josh Triplett <josh@joshtriplett.org> | 2025-06-05 12:09:00 -0700 |
| commit | 43ee7cd57c1706b949c92d6b29a7034b40dff533 (patch) | |
| tree | ed26d3382bcccee7712b4deb6f0f9b5d77163133 /compiler/rustc_data_structures/src/stack.rs | |
| parent | df8102fe5f24f28a918660b0cd918d7331c3896e (diff) | |
| download | rust-43ee7cd57c1706b949c92d6b29a7034b40dff533.tar.gz rust-43ee7cd57c1706b949c92d6b29a7034b40dff533.zip | |
Simplify and optimize `SlotIndex::from_index`
Break out bucket 0 (containing `idx < 4096`) as an early return, which simplifies the remainder of the function, and allows optimizing the `checked_ilog2` since it can no longer return `None`. This reduces the runtime of `vec_cache::tests::slot_index_exhaustive` (which calls `SlotIndex::from_index` for every `u32`, twice) from ~15.5s to ~13.3s.
Diffstat (limited to 'compiler/rustc_data_structures/src/stack.rs')
0 files changed, 0 insertions, 0 deletions