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f387c930ee
Optimize `<SourceFile as Decodable>::decode` It showed up as a hot-ish function in a callgrind profile of the `await-call-tree` benchmark crate. Provides some moderate speedups to compilation of some of the smaller benchmarks: #### Primary benchmarks Benchmark | Profile | Scenario | % Change | Significance Factor? -- | -- | -- | -- | -- helloworld | check | full | -1.81% | 9.03x helloworld | check | incr-unchanged | -1.80% | 8.99x helloworld | check | incr-full | -1.59% | 7.97x helloworld | check | incr-patched: println | -1.57% | 7.86x #### Secondary benchmarks <div class="category-title"></div> Benchmark | Profile | Scenario | % Change | Significance Factor? -- | -- | -- | -- | -- unify-linearly | check | incr-unchanged | -1.55% | 7.74x unify-linearly | check | incr-patched: dummy fn | -1.42% | 7.08x await-call-tree | check | incr-unchanged | -1.27% | 6.35x await-call-tree | debug | incr-unchanged | -1.19% | 5.95x await-call-tree | opt | incr-unchanged | -1.19% | 5.94x issue-46449 | check | incr-unchanged | -1.08% | 5.39x issue-46449 | check | incr-patched: u8 3072 | -1.00% | 5.00x structopt-0.3.26 | check | incr-unchanged | -0.94% | 4.72x structopt-0.3.26 | opt | incr-unchanged | -0.92% | 4.60x structopt-0.3.26 | debug | incr-unchanged | -0.92% | 4.59x issue-46449 | check | full | -0.89% | 4.46x structopt-0.3.26 | check | full | -0.83% | 4.17x structopt-0.3.26 | debug | full | -0.78% | 3.88x structopt-0.3.26 | opt | full | -0.76% | 3.81x unify-linearly | check | full | -0.75% | 3.74x projection-caching | check | incr-unchanged | -0.74% | 3.70x issue-46449 | check | incr-patched: u32 3072 | -0.70% | 3.50x issue-46449 | check | incr-patched: empty 3072 | -0.68% | 3.41x structopt-0.3.26 | check | incr-full | -0.68% | 3.40x wf-projection-stress-65510 | check | incr-unchanged | -0.68% | 3.39x issue-46449 | check | incr-patched: static str 6144 | -0.67% | 3.37x wf-projection-stress-65510 | debug | incr-unchanged | -0.67% | 3.33x wf-projection-stress-65510 | opt | incr-unchanged | -0.66% | 3.31x issue-46449 | check | incr-patched: io error 6144 | -0.66% | 3.29x unify-linearly | check | incr-full | -0.65% | 3.26x issue-46449 | check | incr-full | -0.65% | 3.25x structopt-0.3.26 | debug | incr-full | -0.64% | 3.18x structopt-0.3.26 | opt | incr-full | -0.63% | 3.17x issue-46449 | debug | incr-unchanged | -0.61% | 3.06x issue-46449 | opt | incr-unchanged | -0.61% | 3.03x await-call-tree | check | full | -0.60% | 2.99x issue-88862 | check | incr-unchanged | -0.58% | 2.91x deep-vector | debug | full | 0.57% | 2.83x await-call-tree | check | incr-full | -0.52% | 2.59x tt-muncher | opt | full | -0.52% | 2.58x issue-58319 | check | incr-unchanged | -0.50% | 2.52x await-call-tree | debug | full | -0.50% | 2.49x await-call-tree | opt | full | -0.49% | 2.45x deep-vector | debug | incr-patched: println | 0.47% | 2.37x await-call-tree | debug | incr-full | -0.45% | 2.26x await-call-tree | opt | incr-full | -0.44% | 2.18x issue-88862 | check | full | -0.41% | 2.06x mockall-0.11.0 | check | incr-unchanged | -0.38% | 1.90x regression-31157 | check | incr-unchanged | -0.37% | 1.86x wf-projection-stress-65510 | opt | full | -0.36% | 1.80x deunicode-1.3.1 | check | incr-unchanged | -0.35% | 1.76x unify-linearly | debug | incr-patched: dummy fn | -0.35% | 1.74x mockall-0.11.0 | check | full | -0.35% | 1.73x unify-linearly | debug | incr-unchanged | -0.34% | 1.69x deunicode-1.3.1 | check | full | -0.33% | 1.63x token-stream-stress | check | full | -0.32% | 1.62x token-stream-stress | check | incr-full | -0.32% | 1.59x token-stream-stress | check | incr-unchanged | -0.32% | 1.59x regression-31157 | check | incr-patched: println | -0.31% | 1.57x wf-projection-stress-65510 | check | full | -0.31% | 1.54x deeply-nested-multi | check | incr-unchanged | -0.31% | 1.53x mockall-0.11.0 | opt | incr-unchanged | -0.30% | 1.50x r? `@nnethercote` |
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| .. | ||
| rustc | ||
| rustc_apfloat | ||
| rustc_arena | ||
| rustc_ast | ||
| rustc_ast_lowering | ||
| rustc_ast_passes | ||
| rustc_ast_pretty | ||
| rustc_attr | ||
| rustc_borrowck | ||
| rustc_builtin_macros | ||
| rustc_codegen_cranelift | ||
| rustc_codegen_gcc | ||
| rustc_codegen_llvm | ||
| rustc_codegen_ssa | ||
| rustc_const_eval | ||
| rustc_data_structures | ||
| rustc_driver | ||
| rustc_error_codes | ||
| rustc_error_messages | ||
| rustc_errors | ||
| rustc_expand | ||
| rustc_feature | ||
| rustc_fs_util | ||
| rustc_graphviz | ||
| rustc_hir | ||
| rustc_hir_pretty | ||
| rustc_incremental | ||
| rustc_index | ||
| rustc_infer | ||
| rustc_interface | ||
| rustc_lexer | ||
| rustc_lint | ||
| rustc_lint_defs | ||
| rustc_llvm | ||
| rustc_log | ||
| rustc_macros | ||
| rustc_metadata | ||
| rustc_middle | ||
| rustc_mir_build | ||
| rustc_mir_dataflow | ||
| rustc_mir_transform | ||
| rustc_monomorphize | ||
| rustc_parse | ||
| rustc_parse_format | ||
| rustc_passes | ||
| rustc_plugin_impl | ||
| rustc_privacy | ||
| rustc_query_impl | ||
| rustc_query_system | ||
| rustc_resolve | ||
| rustc_save_analysis | ||
| rustc_serialize | ||
| rustc_session | ||
| rustc_span | ||
| rustc_symbol_mangling | ||
| rustc_target | ||
| rustc_trait_selection | ||
| rustc_traits | ||
| rustc_ty_utils | ||
| rustc_type_ir | ||
| rustc_typeck | ||