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a0e229abad
rust/compiler
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bors a0e229abad Auto merge of #83649 - bjorn3:dedup_providers, r=petrochenkov 
Don't duplicate the extern providers once for each crate

This should give a small perf improvement for small crates by avoiding a memcpy of a pretty big struct for each loaded crate. In addition would be useful for replacing the sequential `CrateNum` everywhere with the hash based `StableCrateId` introduced in #81635, which would allow avoiding remapping of `CrateNum`'s when loading crate metadata. While this PR is not strictly needed for that, it is necessary to prevent a performance loss due to it.

I think this duplication was done in https://github.com/rust-lang/rust/pull/40008 (which introduced the query system) to make it possible to compile multiple crates in a single session in the future. I think this is unlikely to be implemented any time soon. In addition this PR can easily be reverted if necessary to implement this.
2021-03-30 06:22:29 +00:00
..
rustc
rustc_apfloat Use iter::zip in compiler/ 2021-03-26 09:32:31 -07:00
rustc_arena Remove (lots of) dead code 2021-03-27 22:16:33 -04:00
rustc_ast Remove (lots of) dead code 2021-03-27 22:16:33 -04:00
rustc_ast_lowering Use iter::zip in compiler/ 2021-03-26 09:32:31 -07:00
rustc_ast_passes progress, stuff compiles now 2021-03-23 17:16:20 +00:00
rustc_ast_pretty Remove (lots of) dead code 2021-03-27 22:16:33 -04:00
rustc_attr
rustc_builtin_macros Use iter::zip in compiler/ 2021-03-26 09:32:31 -07:00
rustc_codegen_cranelift Merge commit '0969bc6dde001e01e7e1f58c8ccd7750f8a49ae1' into sync_cg_clif-2021-03-29 2021-03-29 10:45:09 +02:00
rustc_codegen_llvm Address review comments 2021-03-27 22:16:34 -04:00
rustc_codegen_ssa linker: Use data execution prevention options by default when linker supports them 2021-03-28 23:44:40 +03:00
rustc_data_structures Revert changes to sync data structures 2021-03-29 13:50:40 -04:00
rustc_driver Address review comments 2021-03-27 22:16:34 -04:00
rustc_error_codes progress, stuff compiles now 2021-03-23 17:16:20 +00:00
rustc_errors Fix compiler docs 2021-03-27 22:16:34 -04:00
rustc_expand Remove (lots of) dead code 2021-03-27 22:16:33 -04:00
rustc_feature Rollup merge of #83384 - mark-i-m:rename-pat2018, r=joshtriplett 2021-03-23 10:15:43 +09:00
rustc_fs_util
rustc_graphviz Remove (lots of) dead code 2021-03-27 22:16:33 -04:00
rustc_hir Address review comments 2021-03-27 22:16:34 -04:00
rustc_hir_pretty Remove (lots of) dead code 2021-03-27 22:16:33 -04:00
rustc_incremental Remove (lots of) dead code 2021-03-27 22:16:33 -04:00
rustc_index Use iter::zip in compiler/ 2021-03-26 09:32:31 -07:00
rustc_infer Address review comments 2021-03-27 22:16:34 -04:00
rustc_interface Auto merge of #83649 - bjorn3:dedup_providers, r=petrochenkov 2021-03-30 06:22:29 +00:00
rustc_lexer
rustc_lint Remove (lots of) dead code 2021-03-27 22:16:33 -04:00
rustc_lint_defs Auto merge of #83103 - petrochenkov:unilex, r=Aaron1011 2021-03-27 22:19:17 +00:00
rustc_llvm Auto merge of #83387 - cuviper:min-llvm-10, r=nagisa 2021-03-25 13:11:18 +00:00
rustc_macros Use iter::zip in compiler/ 2021-03-26 09:32:31 -07:00
rustc_metadata Fix #83045 by moving some crate loading verification code to a better place. 2021-03-26 09:59:10 +01:00
rustc_middle Rollup merge of #83643 - JohnTitor:is-freeze-no-longer-uses-span, r=RalfJung 2021-03-30 00:32:24 +02:00
rustc_mir Auto merge of #83185 - jyn514:remove-dead-code, r=oli-obk 2021-03-29 19:44:27 +00:00
rustc_mir_build Use iter::zip in compiler/ 2021-03-26 09:32:31 -07:00
rustc_parse Always preserve None-delimited groups in a captured TokenStream 2021-03-26 23:32:18 -04:00
rustc_parse_format Rollup merge of #83348 - osa1:issue83344, r=jackh726 2021-03-28 01:33:13 +09:00
rustc_passes Use iter::zip in compiler/ 2021-03-26 09:32:31 -07:00
rustc_plugin_impl
rustc_privacy Update with comments 2021-03-23 17:16:20 +00:00
rustc_query_impl Don't duplicate the extern providers once for each crate 2021-03-29 18:03:07 +02:00
rustc_query_system Remove (lots of) dead code 2021-03-27 22:16:33 -04:00
rustc_resolve Auto merge of #83103 - petrochenkov:unilex, r=Aaron1011 2021-03-27 22:19:17 +00:00
rustc_save_analysis Fix compiler docs 2021-03-27 22:16:34 -04:00
rustc_serialize Auto merge of #83465 - michaelwoerister:safe-read_raw_bytes, r=cjgillot 2021-03-26 01:28:59 +00:00
rustc_session Address more review comments 2021-03-27 22:19:32 -04:00
rustc_span Remove (lots of) dead code 2021-03-27 22:16:33 -04:00
rustc_symbol_mangling
rustc_target linker: Use data execution prevention options by default when linker supports them 2021-03-28 23:44:40 +03:00
rustc_trait_selection Remove (lots of) dead code 2021-03-27 22:16:33 -04:00
rustc_traits Add has_default to GenericParamDefKind::Const 2021-03-23 17:16:20 +00:00
rustc_ty_utils Don't consider !Unpin references as noalias 2021-03-21 20:10:53 +01:00
rustc_type_ir
rustc_typeck Use iter::zip in compiler/ 2021-03-26 09:32:31 -07:00