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bors c102c5cfc6 Auto merge of #96020 - martingms:optimize-relate_substs, r=nnethercote 
Micro-optimize `ty::relate::relate_substs` by avoiding `match`

Was a top-20 hot function in a callgrind profile of compiling `bitmaps-3.1.0`.

Yields some small speedups on that crate and some others according to local benching:

Benchmark | Profile | Scenario | % Change | Significance Factor?
-- | -- | -- | -- | --
bitmaps-3.1.0 | check | full | -1.88% | 9.42x
bitmaps-3.1.0 | debug | full | -1.80% | 8.99x
bitmaps-3.1.0 | opt | full | -1.70% | 8.49x
bitmaps-3.1.0 | check | incr-full | -1.54% | 7.68x
deep-vector | debug | full | 1.52% | 7.61x
bitmaps-3.1.0 | debug | incr-full | -1.45% | 7.26x
bitmaps-3.1.0 | opt | incr-full | -1.39% | 6.95x
nalgebra-0.30.1 | check | full | -0.68% | 3.42x
nalgebra-0.30.1 | debug | full | -0.64% | 3.22x
nalgebra-0.30.1 | opt | full | -0.64% | 3.20x
projection-caching | check | full | -0.61% | 3.05x
nalgebra-0.30.1 | check | incr-full | -0.56% | 2.78x
nalgebra-0.30.1 | opt | incr-full | -0.54% | 2.72x
nalgebra-0.30.1 | debug | incr-full | -0.54% | 2.69x
projection-caching | check | incr-full | -0.50% | 2.51x
tt-muncher | opt | full | -0.48% | 2.42x
projection-caching | opt | full | -0.47% | 2.37x
projection-caching | debug | full | -0.47% | 2.35x
projection-caching | opt | incr-full | -0.44% | 2.21x
projection-caching | debug | incr-full | -0.42% | 2.08x
deeply-nested-multi | check | incr-full | 0.37% | 1.87x
wf-projection-stress-65510 | opt | full | -0.37% | 1.84x
deep-vector | debug | incr-patched: add vec item | -0.32% | 1.61x
projection-caching | debug | incr-unchanged | -0.32% | 1.60x
wf-projection-stress-65510 | check | full | -0.31% | 1.55x
projection-caching | opt | incr-unchanged | -0.31% | 1.53x
wf-projection-stress-65510 | debug | incr-full | -0.30% | 1.51x
wf-projection-stress-65510 | opt | incr-full | -0.30% | 1.51x

r? `@nnethercote`
2022-04-19 10:53:53 +00:00
..
rustc Propagate parallel_compiler feature through rustc crates. Turned off feature gives change of builded crates: 238 -> 224. 2022-03-28 08:41:12 +03:00
rustc_apfloat Addressed comments by @compiler-errors and @bjorn3 2022-03-30 17:04:46 -04:00
rustc_arena mark FIXMES for all the places found that are probably offset_from 2022-03-29 20:18:28 -04:00
rustc_ast Auto merge of #95779 - cjgillot:ast-lifetimes-undeclared, r=petrochenkov 2022-04-17 12:56:19 +00:00
rustc_ast_lowering Lint elided lifetimes in path on the AST. 2022-04-17 11:03:34 +02:00
rustc_ast_passes Auto merge of #95779 - cjgillot:ast-lifetimes-undeclared, r=petrochenkov 2022-04-17 12:56:19 +00:00
rustc_ast_pretty Rollup merge of #94985 - dtolnay:constattr, r=pnkfelix 2022-04-16 19:42:00 +02:00
rustc_attr Rollup merge of #94948 - jhpratt:rustc_deprecated, r=Dylan-DPC 2022-03-20 09:14:59 +01:00
rustc_borrowck Lint elided lifetimes in path on the AST. 2022-04-17 11:03:34 +02:00
rustc_builtin_macros Auto merge of #94468 - Amanieu:global_asm_sym, r=nagisa 2022-04-16 04:46:01 +00:00
rustc_codegen_cranelift Add new Deinit statement kind 2022-04-11 08:55:03 -04:00
rustc_codegen_gcc Auto merge of #95689 - lqd:self-profiler, r=wesleywiser 2022-04-16 11:43:28 +00:00
rustc_codegen_llvm Auto merge of #96117 - Dylan-DPC:rollup-5traczf, r=Dylan-DPC 2022-04-16 14:24:14 +00:00
rustc_codegen_ssa Auto merge of #96010 - eduardosm:Unique-on-top-of-NonNull, r=m-ou-se,tmiasko 2022-04-17 05:26:08 +00:00
rustc_const_eval Rollup merge of #95426 - b-naber:valtrees-slice, r=RalfJung,oli-obk 2022-04-16 19:42:03 +02:00
rustc_data_structures Auto merge of #95899 - petrochenkov:modchild2, r=cjgillot 2022-04-16 22:04:10 +00:00
rustc_driver errors: lazily load fallback fluent bundle 2022-04-13 02:44:59 +01:00
rustc_error_codes rework error messages for incorrect inherent impls 2022-03-30 11:23:58 +02:00
rustc_error_messages errors: lazily load fallback fluent bundle 2022-04-13 02:44:59 +01:00
rustc_errors Lint elided lifetimes in path on the AST. 2022-04-17 11:03:34 +02:00
rustc_expand Rollup merge of #96023 - matthiaskrgr:clippyper1304, r=lcnr 2022-04-16 14:25:56 +02:00
rustc_feature Rollup merge of #94457 - jhpratt:stabilize-derive_default_enum, r=davidtwco 2022-04-15 20:50:43 +02:00
rustc_fs_util Migrate to 2021 2021-09-20 22:21:42 -04:00
rustc_graphviz eplace usages of vec![].into_iter with [].into_iter 2022-01-09 14:09:25 +11:00
rustc_hir Auto merge of #95779 - cjgillot:ast-lifetimes-undeclared, r=petrochenkov 2022-04-17 12:56:19 +00:00
rustc_hir_pretty Reimplement lowering of sym operands for asm! so that it also works with global_asm! 2022-04-14 15:32:03 +01:00
rustc_incremental Auto merge of #95655 - kckeiks:create-hir-crate-items-query, r=cjgillot 2022-04-17 08:06:53 +00:00
rustc_index Spellchecking compiler comments 2022-03-30 15:14:15 -04:00
rustc_infer Auto merge of #96020 - martingms:optimize-relate_substs, r=nnethercote 2022-04-19 10:53:53 +00:00
rustc_interface Auto merge of #95655 - kckeiks:create-hir-crate-items-query, r=cjgillot 2022-04-17 08:06:53 +00:00
rustc_lexer Reduce max hash in raw strings from u16 to u8 2022-03-23 22:13:55 +01:00
rustc_lint Lint elided lifetimes in path on the AST. 2022-04-17 11:03:34 +02:00
rustc_lint_defs Lint elided lifetimes in path on the AST. 2022-04-17 11:03:34 +02:00
rustc_llvm Add codegen for global_asm! sym operands 2022-04-15 14:36:30 +01:00
rustc_log Make rustc_log doc test runnable 2022-01-03 22:31:56 -08:00
rustc_macros couple of clippy::complexity fixes 2022-04-13 22:51:34 +02:00
rustc_metadata Auto merge of #95655 - kckeiks:create-hir-crate-items-query, r=cjgillot 2022-04-17 08:06:53 +00:00
rustc_middle Auto merge of #96020 - martingms:optimize-relate_substs, r=nnethercote 2022-04-19 10:53:53 +00:00
rustc_mir_build Rollup merge of #96023 - matthiaskrgr:clippyper1304, r=lcnr 2022-04-16 14:25:56 +02:00
rustc_mir_dataflow Add new MutatatingUseContexts for deinit and SetDiscriminant 2022-04-11 09:26:26 -04:00
rustc_mir_transform couple of clippy::complexity fixes 2022-04-13 22:51:34 +02:00
rustc_monomorphize Auto merge of #95655 - kckeiks:create-hir-crate-items-query, r=cjgillot 2022-04-17 08:06:53 +00:00
rustc_parse Rollup merge of #95346 - Aaron1011:stablize-const-extern-fn, r=pnkfelix 2022-04-17 00:07:23 +02:00
rustc_parse_format Spellchecking compiler comments 2022-03-30 15:14:15 -04:00
rustc_passes Auto merge of #95655 - kckeiks:create-hir-crate-items-query, r=cjgillot 2022-04-17 08:06:53 +00:00
rustc_plugin_impl replace dynamic library module with libloading 2021-12-06 12:03:47 -05:00
rustc_privacy do use ty::Const in patterns and abstract consts 2022-04-02 12:20:59 +02:00
rustc_query_impl rework implementation for inherent impls for builtin types 2022-03-30 11:23:58 +02:00
rustc_query_system Remove NodeIdHashingMode. 2022-04-12 19:59:32 +02:00
rustc_resolve Lint elided lifetimes in path on the AST. 2022-04-17 11:03:34 +02:00
rustc_save_analysis remove find_use_placement 2022-03-31 17:20:03 -04:00
rustc_serialize errors: implement fallback diagnostic translation 2022-04-05 07:01:02 +01:00
rustc_session Rollup merge of #96026 - matthiaskrgr:clippy_compl_1304, r=Dylan-DPC 2022-04-15 20:50:47 +02:00
rustc_span Auto merge of #96016 - Aaron1011:hash-name-cleanup, r=cjgillot 2022-04-17 10:31:52 +00:00
rustc_symbol_mangling Auto merge of #95655 - kckeiks:create-hir-crate-items-query, r=cjgillot 2022-04-17 08:06:53 +00:00
rustc_target couple of clippy::complexity fixes 2022-04-13 22:51:34 +02:00
rustc_trait_selection Rollup merge of #96023 - matthiaskrgr:clippyper1304, r=lcnr 2022-04-16 14:25:56 +02:00
rustc_traits Remove opaque type obligation and just register opaque types as they are encountered. 2022-03-28 16:57:45 +00:00
rustc_ty_utils Avoid accessing HIR from MIR queries. 2022-04-10 13:08:36 +02:00
rustc_type_ir Revert "Auto merge of #93893 - oli-obk:sad_revert, r=oli-obk" 2022-03-28 16:27:14 +00:00
rustc_typeck Auto merge of #95379 - icewind1991:suggest-associated-type-more, r=jackh726 2022-04-19 01:59:35 +00:00