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bors d97326eabf Auto merge of #136264 - GuillaumeGomez:optimize-integers-to-string, r=Amanieu 
Optimize `ToString` implementation for integers

Part of https://github.com/rust-lang/rust/issues/135543.

Follow-up of https://github.com/rust-lang/rust/pull/133247 and https://github.com/rust-lang/rust/pull/128204.

The benchmark results are:

| name| 1.87.0-nightly (3ea711f17 2025-03-09) | With this PR | diff |
|-|-|-|-|
| bench_i16 | 32.06 ns/iter (+/- 0.12) | 17.62 ns/iter (+/- 0.03) | -45% |
| bench_i32 | 31.61 ns/iter (+/- 0.04) | 15.10 ns/iter (+/- 0.06) | -52% |
| bench_i64 | 31.71 ns/iter (+/- 0.07) | 15.02 ns/iter (+/- 0.20) | -52% |
| bench_i8 | 13.21 ns/iter (+/- 0.14) | 14.93 ns/iter (+/- 0.16) | +13% |
| bench_u16 | 31.20 ns/iter (+/- 0.06) | 16.14 ns/iter (+/- 0.11) | -48% |
| bench_u32 | 33.27 ns/iter (+/- 0.05) | 16.18 ns/iter (+/- 0.10) | -51% |
| bench_u64 | 31.44 ns/iter (+/- 0.06) | 16.62 ns/iter (+/- 0.21) | -47% |
| bench_u8 | 10.57 ns/iter (+/- 0.30) | 13.00 ns/iter (+/- 0.43) | +22% |

More information about it in [the original comment](https://github.com/rust-lang/rust/pull/136264#discussion_r1987542954).

r? `@workingjubilee`
2025-05-15 20:20:30 +00:00
..
assembly Auto merge of #140925 - the8472:test-140207, r=compiler-errors 2025-05-12 04:32:50 +00:00
auxiliary stabilize naked_functions 2025-04-20 11:18:38 +02:00
codegen Rollup merge of #140457 - fneddy:fix_s390x_codegen_const_vector, r=Mark-Simulacrum 2025-05-04 18:11:48 -04:00
codegen-units Remove mono item collection strategy override from -Zprint-mono-items 2025-05-09 12:19:09 +02:00
coverage coverage: Only merge adjacent coverage spans 2025-05-06 20:42:25 +10:00
coverage-run-rustdoc Update coverage-run-rustdoc output 2025-03-28 10:35:53 +01:00
crashes Remove mono item collection strategy override from -Zprint-mono-items 2025-05-09 12:19:09 +02:00
debuginfo [win][arm64] Disable various DebugInfo tests that don't work on Arm64 Windows 2025-05-07 10:49:54 -07:00
incremental compiletest: Support matching on non-json lines in compiler output 2025-05-04 18:27:45 +03:00
mir-opt Rollup merge of #140151 - RalfJung:drop_in_place-is-not-an-intrinsic, r=Mark-Simulacrum 2025-05-10 16:26:02 +02:00
pretty Improve hir pretty-printing of attributes. 2025-05-03 12:46:48 +10:00
run-make Rollup merge of #140843 - jieyouxu:broken-pipe, r=Kobzol 2025-05-09 21:50:07 +02:00
rustdoc Created tests/rustdoc/async subfolder to limit number of files at the top level 2025-05-05 17:49:12 +02:00
rustdoc-gui rustdoc: add a handle that makes sidebar resizing more obvious 2025-05-09 12:38:00 -07:00
rustdoc-js rustdoc-search: add unbox flag to Result aliases 2025-04-11 11:36:40 -07:00
rustdoc-js-std Consistent trait bounds for ExtractIf Debug impls 2025-05-05 19:46:46 -07:00
rustdoc-json rustdoc-json: Remove newlines from attributes 2025-05-07 18:45:58 +00:00
rustdoc-ui Rollup merge of #139863 - fmease:simp-doctest-build-arg-passing, r=GuillaumeGomez 2025-05-09 21:50:06 +02:00
ui Auto merge of #136264 - GuillaumeGomez:optimize-integers-to-string, r=Amanieu 2025-05-15 20:20:30 +00:00
ui-fulldeps Auto merge of #140453 - Zoxc:next-disambiguator, r=oli-obk 2025-05-05 11:50:43 +00:00
COMPILER_TESTS.md