bors de42550d0a Auto merge of #83302 - camsteffen:write-piece-unchecked, r=dtolnay ... Get piece unchecked in `write` We already use specialized `zip`, but it seems like we can do a little better by not checking `pieces` length at all. `Arguments` constructors are now unsafe. So the `format_args!` expansion now includes an `unsafe` block. <details> <summary>Local Bench Diff</summary> ```text name before ns/iter after ns/iter diff ns/iter diff % speedup fmt::write_str_macro1 22,967 19,718 -3,249 -14.15% x 1.16 fmt::write_str_macro2 35,527 32,654 -2,873 -8.09% x 1.09 fmt::write_str_macro_debug 571,953 575,973 4,020 0.70% x 0.99 fmt::write_str_ref 9,579 9,459 -120 -1.25% x 1.01 fmt::write_str_value 9,573 9,572 -1 -0.01% x 1.00 fmt::write_u128_max 176 173 -3 -1.70% x 1.02 fmt::write_u128_min 138 134 -4 -2.90% x 1.03 fmt::write_u64_max 139 136 -3 -2.16% x 1.02 fmt::write_u64_min 129 135 6 4.65% x 0.96 fmt::write_vec_macro1 24,401 22,273 -2,128 -8.72% x 1.10 fmt::write_vec_macro2 37,096 35,602 -1,494 -4.03% x 1.04 fmt::write_vec_macro_debug 588,291 589,575 1,284 0.22% x 1.00 fmt::write_vec_ref 9,568 9,732 164 1.71% x 0.98 fmt::write_vec_value 9,516 9,625 109 1.15% x 0.99 ``` </details>		2021-08-23 22:55:19 +00:00
..
rustc	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
rustc_apfloat	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
rustc_arena	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
rustc_ast	Fix typos “a”→“an”	2021-08-22 15:35:11 +02:00
rustc_ast_lowering	Fix typos “a”→“an”	2021-08-22 15:35:11 +02:00
rustc_ast_passes	Auto merge of #86860 - fee1-dead:stabilize, r=LeSeulArtichaut	2021-08-18 01:00:17 +00:00
rustc_ast_pretty	Introduce hir::ExprKind::Let - Take 2	2021-08-15 16:18:26 -03:00
rustc_attr	rustc: Fill out remaining parts of C-unwind ABI	2021-08-03 07:06:19 -07:00
rustc_builtin_macros	Auto merge of #83302 - camsteffen:write-piece-unchecked, r=dtolnay	2021-08-23 22:55:19 +00:00
rustc_codegen_cranelift	Auto merge of #88135 - crlf0710:trait_upcasting_part_3, r=nikomatsakis	2021-08-21 21:14:07 +00:00
rustc_codegen_llvm	Rollup merge of #88230 - steffahn:a_an, r=oli-obk	2021-08-23 20:45:49 +02:00
rustc_codegen_ssa	Fix typos “a”→“an”	2021-08-22 15:35:11 +02:00
rustc_data_structures	Fix more “a”/“an” typos	2021-08-22 16:35:29 +02:00
rustc_driver	Reduce verbosity of RUSTC_LOG	2021-08-09 21:39:39 -04:00
rustc_error_codes	Auto merge of #88134 - rylev:force-warn-improvements, r=nikomatsakis	2021-08-21 15:51:50 +00:00
rustc_errors	review comments	2021-08-23 14:31:48 +00:00
rustc_expand	Introduce hir::ExprKind::Let - Take 2	2021-08-15 16:18:26 -03:00
rustc_feature	Auto merge of #87570 - nikic:llvm-13, r=nagisa	2021-08-21 09:25:28 +00:00
rustc_fs_util	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
rustc_graphviz	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
rustc_hir	Fix typos “an”→“a” and a few different ones that appeared in the same search	2021-08-22 18:15:49 +02:00
rustc_hir_pretty	Introduce hir::ExprKind::Let - Take 2	2021-08-15 16:18:26 -03:00
rustc_incremental	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
rustc_index	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
rustc_infer	Rollup merge of #88230 - steffahn:a_an, r=oli-obk	2021-08-23 20:45:49 +02:00
rustc_interface	Replace #[plugin_registrar] with exporting __rustc_plugin_registrar	2021-08-10 14:20:48 +02:00
rustc_lexer	Fix more “a”/“an” typos	2021-08-22 17:27:18 +02:00
rustc_lint	Rollup merge of #88230 - steffahn:a_an, r=oli-obk	2021-08-23 20:45:49 +02:00
rustc_lint_defs	Rollup merge of #88230 - steffahn:a_an, r=oli-obk	2021-08-23 20:45:49 +02:00
rustc_llvm	Rollup merge of #88164 - durin42:llvm-14-san-opts, r=nikic	2021-08-22 20:52:53 +02:00
rustc_macros	Rollup merge of #86123 - Aaron1011:query-span, r=cjgillot	2021-08-19 19:30:04 +02:00
rustc_metadata	Fix typos “an”→“a” and a few different ones that appeared in the same search	2021-08-22 18:15:49 +02:00
rustc_middle	Rollup merge of #88230 - steffahn:a_an, r=oli-obk	2021-08-23 20:45:49 +02:00
rustc_mir	Fix typos “an”→“a” and a few different ones that appeared in the same search	2021-08-22 18:15:49 +02:00
rustc_mir_build	Fix typos “an”→“a” and a few different ones that appeared in the same search	2021-08-22 18:15:49 +02:00
rustc_parse	Fix more “a”/“an” typos	2021-08-22 17:27:18 +02:00
rustc_parse_format	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
rustc_passes	Rollup merge of #88036 - nbdd0121:const3, r=petrochenkov	2021-08-18 19:54:59 +02:00
rustc_plugin_impl	Replace #[plugin_registrar] with exporting __rustc_plugin_registrar	2021-08-10 14:20:48 +02:00
rustc_privacy	Fix typos “a”→“an”	2021-08-22 15:35:11 +02:00
rustc_query_impl	Fold vtable_trait_upcasting_coercion_new_vptr_slot logic into obligation processing.	2021-08-18 13:00:27 +08:00
rustc_query_system	Prevent double panic when handling incremental fingerprint mismatch	2021-08-12 15:11:39 -05:00
rustc_resolve	Rollup merge of #88232 - m-ou-se:macro-name-imported-but-not-macro, r=estebank	2021-08-23 20:45:50 +02:00
rustc_save_analysis	Include (potentially remapped) working dir in crate hash	2021-08-15 15:17:37 -05:00
rustc_serialize	Fix more “a”/“an” typos	2021-08-22 16:35:29 +02:00
rustc_session	Do not mark -Z thir-unsafeck as unsound anymore	2021-08-23 14:52:42 +02:00
rustc_span	Fix typos “an”→“a” and a few different ones that appeared in the same search	2021-08-22 18:15:49 +02:00
rustc_symbol_mangling	Auto merge of #85296 - bjorn3:plugin_cleanup, r=petrochenkov	2021-08-12 04:30:41 +00:00
rustc_target	Rollup merge of #88230 - steffahn:a_an, r=oli-obk	2021-08-23 20:45:49 +02:00
rustc_trait_selection	Rollup merge of #88230 - steffahn:a_an, r=oli-obk	2021-08-23 20:45:49 +02:00
rustc_traits	Fix typos “a”→“an”	2021-08-22 15:35:11 +02:00
rustc_ty_utils	Fix typos “a”→“an”	2021-08-22 15:35:11 +02:00
rustc_type_ir	rfc3052: Remove authors field from Cargo manifests	2021-07-29 14:56:05 -07:00
rustc_typeck	Auto merge of #88265 - m-ou-se:rollup-soymv20, r=m-ou-se	2021-08-23 20:10:29 +00:00