Use SmallVec to avoid allocations in from_decimal_string.
#55816
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This reduces the number of allocations in a "check clean" build of `tuple-stress` by 14%, reducing instruction counts by 0.6%.
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…llVec, r=oli-obk Use `SmallVec` to avoid allocations in `from_decimal_string`. This reduces the number of allocations in a "check clean" build of `tuple-stress` by 14%, reducing instruction counts by 0.6%.
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Rollup of 17 pull requests Successful merges: - #55630 (resolve: Filter away macro prelude in modules with `#[no_implicit_prelude]` on 2018 edition) - #55687 (Take supertraits into account when calculating associated types) - #55745 (Convert `outlives_components`' return value to a `SmallVec` outparam.) - #55764 (Fix Rc/Arc allocation layout) - #55792 (Prevent ICE in const-prop array oob check) - #55799 (Removed unneeded instance of `// revisions` from a lint test) - #55800 (Fix ICE in `return_type_impl_trait`) - #55801 (NLL: Update box insensitivity test) - #55802 (Don't inline virtual calls (take 2)) - #55816 (Use `SmallVec` to avoid allocations in `from_decimal_string`.) - #55819 (Typecheck patterns of all match arms first, so we get types for bindings) - #55822 (ICE with #![feature(nll)] and elided lifetimes) - #55828 (Add missing `rustc_promotable` attribute to unsigned `min_value` and `max_value`) - #55839 (Fix docstring spelling mistakes) - #55844 (Fix documentation typos.) - #55845 (Set BINARYEN_TRAP_MODE=clamp) - #55856 (rustdoc: refactor: move all static-file include!s into a single module)
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☔ The latest upstream changes (presumably #55859) made this pull request unmergeable. Please resolve the merge conflicts. |
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This reduces the number of allocations in a "check clean" build of
tuple-stressby 14%, reducing instruction counts by 0.6%.