Use SmallVec within MoveData.
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This reduces allocation counts significantly in a few benchmarks, reducing instruction counts by up to 2%.
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…=michaelwoerister Use `SmallVec` within `MoveData`. This reduces allocation counts significantly in a few benchmarks, reducing instruction counts by up to 2%.
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Rollup of 13 pull requests Successful merges: - #55280 (Add libproc_macro to rust-src distribution) - #55469 (Regression tests for issue #54477.) - #55504 (Use vec![x; n] instead of iter::repeat(x).take(n).collect()) - #55522 (use String::from() instead of format!() macro to construct Strings.) - #55536 (Pass suggestions as impl Iterator instead of Vec) - #55542 (syntax: improve a few allocations) - #55558 (Tweak `MatcherPos::matches`) - #55561 (Fix double_check tests on big-endian targets) - #55573 (Make sure the `aws` executable is in $PATH on macOS) - #55574 (Use `SmallVec` within `MoveData`.) - #55575 (Fix invalid_const_promotion test on some archs) - #55578 (Made doc example of `impl Default for …` use `-> Self` instead of explicit self type) - #55582 (Remove unused import copy from publish_toolstate.py)
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This reduces allocation counts significantly in a few benchmarks, reducing instruction counts by up to 2%.