Matthias Krüger 5e04f513cd Rollup merge of #92142 - wesleywiser:fix_codecoverage_partitioning, r=tmandry ... [code coverage] Fix missing dead code in modules that are never called The issue here is that the logic used to determine which CGU to put the dead function stubs in doesn't handle cases where a module is never assigned to a CGU (which is what happens when all of the code in the module is dead). The partitioning logic also caused issues in #85461 where inline functions were duplicated into multiple CGUs resulting in duplicate symbols. This commit fixes the issue by removing the complex logic used to assign dead code stubs to CGUs and replaces it with a much simpler model: we pick one CGU to hold all the dead code stubs. We pick a CGU which has exported items which increases the likelihood the linker won't throw away our dead functions and we pick the smallest to minimize the impact on compilation times for crates with very large CGUs. Fixes #91661 Fixes #86177 Fixes #85718 Fixes #79622 r? ```@tmandry``` cc ```@richkadel``` This PR is not urgent so please don't let it interrupt your holidays! 🎄 🎁		2022-01-13 08:11:20 +01:00
..
rustc	Remove useless #[global_allocator] from rustc and rustdoc.	2021-12-23 17:23:21 +11:00
rustc_apfloat	Stabilize iter::zip.	2021-12-14 18:50:31 -04:00
rustc_arena	Add some comments.	2021-11-19 07:52:59 +11:00
rustc_ast	Rollup merge of #92357 - GuillaumeGomez:fix-doc-comment-backline-removal, r=camelid	2022-01-10 11:03:05 +01:00
rustc_ast_lowering	Rollup merge of #91907 - lcnr:const-arg-infer, r=BoxyUwU	2022-01-04 21:23:06 +01:00
rustc_ast_passes	Move PatKind::Lit checking from ast_validation to ast lowering	2022-01-01 15:10:43 -05:00
rustc_ast_pretty	Rollup merge of #92336 - dtolnay:printstateself, r=michaelwoerister	2022-01-07 20:20:56 -08:00
rustc_attr	Remove unnecessary sigils around Symbol::as_str() calls.	2021-12-15 17:32:14 +11:00
rustc_borrowck	Store a Symbol instead of an Ident in VariantDef/FieldDef	2022-01-11 10:16:22 -05:00
rustc_builtin_macros	Update AsmArgs field visibility for rustfmt	2022-01-10 22:38:15 -05:00
rustc_codegen_cranelift	Store a Symbol instead of an Ident in VariantDef/FieldDef	2022-01-11 10:16:22 -05:00
rustc_codegen_gcc	Store a Symbol instead of an Ident in VariantDef/FieldDef	2022-01-11 10:16:22 -05:00
rustc_codegen_llvm	Rollup merge of #92142 - wesleywiser:fix_codecoverage_partitioning, r=tmandry	2022-01-13 08:11:20 +01:00
rustc_codegen_ssa	Rollup merge of #90001 - Fearyncess:master, r=alexcrichton	2022-01-13 08:11:16 +01:00
rustc_const_eval	Rollup merge of #92432 - fee1-dead:constck-impl-constness, r=oli-obk	2022-01-12 07:12:06 +01:00
rustc_data_structures	Auto merge of #92070 - rukai:replace_vec_into_iter_with_array_into_iter, r=Mark-Simulacrum	2022-01-11 14:23:24 +00:00
rustc_driver	Rollup merge of #92504 - dtolnay:wall, r=jackh726	2022-01-06 23:15:17 +01:00
rustc_error_codes	docs(error-codes): Add long error explanation for E0227	2021-12-28 15:46:20 +03:00
rustc_errors	Auto merge of #92070 - rukai:replace_vec_into_iter_with_array_into_iter, r=Mark-Simulacrum	2022-01-11 14:23:24 +00:00
rustc_expand	Auto merge of #92070 - rukai:replace_vec_into_iter_with_array_into_iter, r=Mark-Simulacrum	2022-01-11 14:23:24 +00:00
rustc_feature	Stabilize destructuring_assignment	2021-12-14 22:38:51 -05:00
rustc_fs_util
rustc_graphviz	eplace usages of vec![].into_iter with [].into_iter	2022-01-09 14:09:25 +11:00
rustc_hir	Rollup merge of #92702 - ehuss:clean-lang_items-extract, r=petrochenkov	2022-01-10 11:03:11 +01:00
rustc_hir_pretty	Rollup merge of #91907 - lcnr:const-arg-infer, r=BoxyUwU	2022-01-04 21:23:06 +01:00
rustc_incremental	eplace usages of vec![].into_iter with [].into_iter	2022-01-09 14:09:25 +11:00
rustc_index	Introduce IntervalSet	2021-12-30 22:33:44 -05:00
rustc_infer	Rollup merge of #92006 - oli-obk:welcome_opaque_types_into_the_fold, r=nikomatsakis	2022-01-13 08:11:19 +01:00
rustc_interface	ast: Always keep a NodeId in ast::Crate	2022-01-05 17:09:37 +08:00
rustc_lexer	Auto merge of #91393 - Julian-Wollersberger:lexer_optimization, r=petrochenkov	2021-12-03 13:20:14 +00:00
rustc_lint	Compute most of Public/Exported access level in rustc_resolve	2022-01-09 21:33:14 +00:00
rustc_lint_defs	Rollup merge of #91770 - TaKO8Ki:suggest-adding-cfg-test, r=joshtriplett	2021-12-21 08:33:39 +01:00
rustc_llvm	Rollup merge of #92559 - durin42:llvm-14-attributemask, r=nikic	2022-01-06 23:15:18 +01:00
rustc_log	Make rustc_log doc test runnable	2022-01-03 22:31:56 -08:00
rustc_macros	Rollup merge of #92011 - Aaron1011:decode-span, r=michaelwoerister	2022-01-03 14:44:16 +01:00
rustc_metadata	Auto merge of #92169 - In-line:no-cache-selector-lrc, r=Mark-Simulacrum	2022-01-12 21:04:40 +00:00
rustc_middle	Rollup merge of #92142 - wesleywiser:fix_codecoverage_partitioning, r=tmandry	2022-01-13 08:11:20 +01:00
rustc_mir_build	Store a Symbol instead of an Ident in VariantDef/FieldDef	2022-01-11 10:16:22 -05:00
rustc_mir_dataflow	Store a Symbol instead of an Ident in VariantDef/FieldDef	2022-01-11 10:16:22 -05:00
rustc_mir_transform	Rollup merge of #92142 - wesleywiser:fix_codecoverage_partitioning, r=tmandry	2022-01-13 08:11:20 +01:00
rustc_monomorphize	Rollup merge of #92142 - wesleywiser:fix_codecoverage_partitioning, r=tmandry	2022-01-13 08:11:20 +01:00
rustc_parse	eplace usages of vec![].into_iter with [].into_iter	2022-01-09 14:09:25 +11:00
rustc_parse_format
rustc_passes	Clean up lang_items::extract	2022-01-09 13:41:04 -08:00
rustc_plugin_impl	replace dynamic library module with libloading	2021-12-06 12:03:47 -05:00
rustc_privacy	Store a Symbol instead of an Ident in VariantDef/FieldDef	2022-01-11 10:16:22 -05:00
rustc_query_impl	Some cleanup	2021-12-23 13:38:53 -05:00
rustc_query_system	Auto merge of #92278 - Aaron1011:fix-fingerprint-caching, r=michaelwoerister	2022-01-10 00:26:07 +00:00
rustc_resolve	Compute most of Public/Exported access level in rustc_resolve	2022-01-09 21:33:14 +00:00
rustc_save_analysis	Add trait_item_def_id to AssocItem	2022-01-07 12:28:12 -08:00
rustc_serialize	Do not use LEB128 for encoding u16 and i16	2021-12-28 09:29:08 +01:00
rustc_session	sess/cg: re-introduce split dwarf kind	2022-01-06 09:32:42 +00:00
rustc_span	Auto merge of #92012 - llogiq:repr-c-def-id, r=michaelwoerister	2022-01-11 08:09:00 +00:00
rustc_symbol_mangling	Ensure that Fingerprint caching respects hashing configuration	2022-01-05 10:13:28 -05:00
rustc_target	eplace usages of vec![].into_iter with [].into_iter	2022-01-09 14:09:25 +11:00
rustc_trait_selection	Rollup merge of #92006 - oli-obk:welcome_opaque_types_into_the_fold, r=nikomatsakis	2022-01-13 08:11:19 +01:00
rustc_traits	Add trait_item_def_id to AssocItem	2022-01-07 12:28:12 -08:00
rustc_ty_utils	Add query to avoid name comparison in leaf_def	2022-01-07 13:31:36 -08:00
rustc_type_ir	Fix HashStable implementation on InferTy	2021-12-13 20:36:17 -08:00
rustc_typeck	Auto merge of #92533 - Aaron1011:variant-symbol, r=petrochenkov	2022-01-11 21:02:01 +00:00