Matthias Krüger f7e1ae40f5 Rollup merge of #135561 - Zalathar:link-dead-code, r=saethlin ... Update docs for `-Clink-dead-code` to discourage its use The `-Clink-dead-code` flag was originally added way back in #31368, apparently to help improve the output of some older forms of code coverage measurement, and also to address some use-cases for wanting to suppress linker flags like `-dead_strip` and `--gc-section`. In the past it might have also been useful in conjunction with `-Cinstrument-coverage`, but subsequent improvements to coverage instrumentation have made it unnecessary there. [It is also currently used by cargo-fuzz by default](https://github.com/rust-fuzz/cargo-fuzz/issues/391), for reasons that are possibly no longer relevant. --- The flag currently does more than its name suggests, affecting not just linker flags, but also monomorphization decisions. It has also contributed to ICEs (e.g. #135515) that would not have occurred without link-dead-code. --- For now, this PR just updates the documentation to be more realistic about what the flag does, and when it should be used (approximately never). In the future, it might be worth looking into properly deprecating this flag, and perhaps making it a no-op if feasible.		2025-01-16 18:46:10 +01:00
..
rustc	switch jemalloc-sys back to tikv-jemalloc-sys, and update to 0.6.0	2024-12-03 08:56:33 +00:00
rustc_abi	fix ZST handling for Windows ABIs on MSVC target	2025-01-10 12:16:49 +01:00
rustc_arena	Add inherent versions of MaybeUninit methods for slices	2025-01-11 23:57:00 -05:00
rustc_ast	allowed_through_unstable_modules: support showing a deprecation message when the unstable module name is used	2025-01-15 09:41:33 +01:00
rustc_ast_ir	Add sugar for &pin (const|mut) types	2024-10-07 11:15:04 -07:00
rustc_ast_lowering	Treat safe target_feature functions as unsafe by default	2025-01-15 08:58:17 +00:00
rustc_ast_passes	update cfg(bootstrap)	2025-01-08 21:26:39 +01:00
rustc_ast_pretty	Rename PatKind::Lit to Expr	2025-01-08 07:34:59 +00:00
rustc_attr_data_structures	allowed_through_unstable_modules: support showing a deprecation message when the unstable module name is used	2025-01-15 09:41:33 +01:00
rustc_attr_parsing	allowed_through_unstable_modules: support showing a deprecation message when the unstable module name is used	2025-01-15 09:41:33 +01:00
rustc_baked_icu_data	Delete the cfg(not(parallel)) serial compiler	2024-11-12 13:38:58 +00:00
rustc_borrowck	Coerce safe-to-call target_feature functions to fn pointers.	2025-01-16 10:54:33 +01:00
rustc_builtin_macros	Rollup merge of #134877 - DavisRayM:129966-format-string-help-message, r=estebank	2025-01-01 16:35:30 +11:00
rustc_codegen_cranelift	Update compiler-builtins to 0.1.143	2025-01-15 04:02:19 +00:00
rustc_codegen_gcc	Rollup merge of #134338 - tgross35:overflowing-c-safe-ret, r=bjorn3,antoyo	2025-01-15 04:08:12 -05:00
rustc_codegen_llvm	Rollup merge of #133752 - klensy:cp, r=davidtwco	2025-01-13 15:56:55 +01:00
rustc_codegen_ssa	Treat safe target_feature functions as unsafe by default	2025-01-15 08:58:17 +00:00
rustc_const_eval	Methods of const traits are const	2025-01-15 15:57:06 +00:00
rustc_data_structures	coverage: Completely overhaul counter assignment, using node-flow graphs	2025-01-16 22:07:18 +11:00
rustc_driver
rustc_driver_impl	add deprecated and do nothing flag to options table	2025-01-06 15:38:02 +03:00
rustc_error_codes	Implement use associated items of traits	2025-01-16 16:34:05 +08:00
rustc_error_messages	Convert some Into impls into From impls	2024-12-31 01:56:33 +00:00
rustc_errors	Auto merge of #135402 - matthiaskrgr:rollup-cz7hs13, r=matthiaskrgr	2025-01-12 14:43:10 +00:00
rustc_expand	Rollup merge of #135247 - tgross35:stdlib-sym-list, r=oli-obk	2025-01-09 09:05:09 +01:00
rustc_feature	Rollup merge of #134754 - frank-king:feature/import_trait_associated_functions, r=oli-obk	2025-01-16 18:46:08 +01:00
rustc_fluent_macro	use tracked_path in rustc_fluent_macro	2024-10-19 22:32:38 +08:00
rustc_fs_util
rustc_graphviz
rustc_hir	Treat safe target_feature functions as unsafe by default	2025-01-15 08:58:17 +00:00
rustc_hir_analysis	Auto merge of #134353 - oli-obk:safe-target-feature-unsafe-by-default, r=wesleywiser	2025-01-15 12:06:56 +00:00
rustc_hir_pretty	Treat safe target_feature functions as unsafe by default	2025-01-15 08:58:17 +00:00
rustc_hir_typeck	Coerce safe-to-call target_feature functions to fn pointers.	2025-01-16 10:54:33 +01:00
rustc_incremental	turn hir::ItemKind::Fn into a named-field variant	2025-01-04 11:35:31 +01:00
rustc_index	Add DenseBitSet::union_not	2025-01-14 23:49:10 +11:00
rustc_index_macros	update rustc_index_macros feature handling	2024-12-19 20:32:12 +03:00
rustc_infer	rm unnecessary OpaqueTypeDecl wrapper	2025-01-13 14:33:18 +01:00
rustc_interface	Rollup merge of #134030 - folkertdev:min-fn-align, r=workingjubilee	2025-01-11 18:13:45 +01:00
rustc_lexer	Add test to check unicode identifier version	2024-12-09 06:23:59 -08:00
rustc_lint	Rollup merge of #135441 - compiler-errors:redundant-captures-lint, r=lqd	2025-01-13 20:43:48 -05:00
rustc_lint_defs	Rollup merge of #132397 - m-ou-se:warn-missing-abi, r=Nadrieril	2025-01-15 04:08:10 -05:00
rustc_llvm	llvm: Ignore error value that is always false	2025-01-07 01:02:22 +00:00
rustc_log	Avoid naming variables str	2025-01-07 14:30:02 +02:00
rustc_macros	Avoid naming variables str	2025-01-07 14:30:02 +02:00
rustc_metadata	Mark dependencies of the standard library as private by default	2025-01-14 08:51:19 +00:00
rustc_middle	Rollup merge of #135504 - veluca93:target-feature-cast-to-fn-ptr, r=oli-obk	2025-01-16 18:46:09 +01:00
rustc_mir_build	Coerce safe-to-call target_feature functions to fn pointers.	2025-01-16 10:54:33 +01:00
rustc_mir_dataflow	rename BitSet to DenseBitSet	2025-01-11 11:34:01 +00:00
rustc_mir_transform	coverage: Make yank_to_spantree_root iterative instead of recursive	2025-01-16 22:07:18 +11:00
rustc_monomorphize	Make sure we actually use the right trivial lifetime substs when eagerly monomorphizing drop for structs	2025-01-15 04:20:25 +00:00
rustc_next_trait_solver	Prefer lower TraitUpcasting candidates	2025-01-14 17:59:54 +00:00
rustc_parse	Remove allocations from case-insensitive comparison to keywords	2025-01-11 12:39:44 -05:00
rustc_parse_format	add suggestion for wrongly ordered format parameters	2024-12-30 06:14:26 -08:00
rustc_passes	Rollup merge of #135003 - RalfJung:deprecate-allowed-through-unstable, r=davidtwco	2025-01-15 16:30:11 +01:00
rustc_pattern_analysis	rename BitSet to DenseBitSet	2025-01-11 11:34:01 +00:00
rustc_privacy	turn hir::ItemKind::Fn into a named-field variant	2025-01-04 11:35:31 +01:00
rustc_query_impl	don't return an Option from try_find_dep_kind	2025-01-07 21:57:00 +01:00
rustc_query_system	remove code duplication when hashing query result and interning node	2025-01-13 20:25:46 +01:00
rustc_resolve	Rollup merge of #134754 - frank-king:feature/import_trait_associated_functions, r=oli-obk	2025-01-16 18:46:08 +01:00
rustc_sanitizers	Eliminate an unnecessary Symbol::to_string; use as_str	2025-01-07 14:24:47 +02:00
rustc_serialize	Fix explicit_iter_loop in rustc_serialize	2024-10-16 15:44:16 +02:00
rustc_session	Update docs for -Clink-dead-code to discourage its use	2025-01-16 15:43:29 +11:00
rustc_smir	Auto merge of #134625 - compiler-errors:unsafe-binders-ty, r=oli-obk	2024-12-24 00:51:51 +00:00
rustc_span	Rollup merge of #134754 - frank-king:feature/import_trait_associated_functions, r=oli-obk	2025-01-16 18:46:08 +01:00
rustc_symbol_mangling	Fix legacy symbol mangling of closures	2025-01-14 16:33:03 +00:00
rustc_target	on Windows, consistently pass ZST by-ref	2025-01-12 13:32:36 +01:00
rustc_trait_selection	Rollup merge of #135498 - compiler-errors:dyn-upcasting-completeness, r=lcnr	2025-01-15 16:30:17 +01:00
rustc_traits	Delay a bug when encountering an impl with unconstrained generics in codegen_select	2024-11-23 05:27:45 +00:00
rustc_transmute	add comment explaining why ty_and_layout_field is not used	2024-12-18 11:01:54 +01:00
rustc_ty_utils	Consider more erroneous layouts as LayoutError::ReferencesError to suppress spurious errors	2025-01-14 19:07:37 +00:00
rustc_type_ir	Rollup merge of #135498 - compiler-errors:dyn-upcasting-completeness, r=lcnr	2025-01-15 16:30:17 +01:00
rustc_type_ir_macros	do not relate Abi and Safety	2024-10-22 23:13:04 +02:00
stable_mir	make no-variant types a dedicated Variants variant	2024-12-18 11:01:54 +01:00