bors 7b3cd075bb Auto merge of #90788 - ecstatic-morse:issue-90752, r=wesleywiser ... Mark places as initialized when mutably borrowed Fixes the example in #90752, but does not handle some corner cases involving raw pointers and unsafe. See [this comment](https://github.com/rust-lang/rust/issues/90752#issuecomment-965822895) for more information, or the second test. Although I talked about both `MaybeUninitializedPlaces` and `MaybeInitializedPlaces` in #90752, this PR only changes the latter. That's because "maybe uninitialized" is the conservative choice, and marking them as definitely initialized (`!maybe_uninitialized`) when a mutable borrow is created could lead to problems if `addr_of_mut` to an uninitialized local is allowed. Additionally, places cannot become uninitialized via a mutable reference, so if a place is definitely initialized, taking a mutable reference to it should not change that. I think it's correct to ignore interior mutability as nbdd0121 suggests below. Their analysis doesn't work inside of `core::cell`, which *does* have access to `UnsafeCell`'s field, but that won't be an issue unless we explicitly instantiate one with an `enum` within that module. r? `@wesleywiser`		2021-11-23 17:44:33 +00:00
..
rustc	Migrate to 2021	2021-09-20 22:21:42 -04:00
rustc_apfloat	Revert "Auto merge of #89709 - clemenswasser:apply_clippy_suggestions_2, r=petrochenkov"	2021-10-15 11:28:23 +02:00
rustc_arena	Add some comments.	2021-11-19 07:52:59 +11:00
rustc_ast	Auto merge of #89316 - asquared31415:multiple-clobber-abi, r=Amanieu	2021-11-12 16:29:25 +00:00
rustc_ast_lowering	Simplify for loop desugar	2021-11-21 08:15:21 -06:00
rustc_ast_passes	rustc_feature: Convert BuiltinAttribute from tuple to a struct	2021-11-12 20:15:14 +08:00
rustc_ast_pretty	Add support for specifying multiple clobber_abi in asm!	2021-11-10 01:06:03 -05:00
rustc_attr	Correct typo	2021-10-16 13:36:05 -07:00
rustc_borrowck	Simplify for loop desugar	2021-11-21 08:15:21 -06:00
rustc_builtin_macros	Stabilize format_args_capture	2021-11-15 10:14:29 +01:00
rustc_codegen_cranelift	Make hash_result an Option.	2021-10-20 18:29:18 +02:00
rustc_codegen_gcc	Remove workaround for the forward progress handling in LLVM	2021-11-14 16:35:09 +01:00
rustc_codegen_llvm	add rustc option for using LLVM stack smash protection	2021-11-22 20:06:22 +01:00
rustc_codegen_ssa	Rollup merge of #90900 - andjo403:removeLlvm12Check, r=nikic	2021-11-17 15:58:05 +01:00
rustc_const_eval	Revert "require full validity when determining the discriminant of a value"	2021-11-20 12:33:04 -05:00
rustc_data_structures	Add #[inline]s to SortedIndexMultiMap	2021-11-11 08:35:59 +09:00
rustc_driver	add rustc option for using LLVM stack smash protection	2021-11-22 20:06:22 +01:00
rustc_error_codes	Update Copy/Clone documentation WRT arrays	2021-11-08 13:11:59 -05:00
rustc_errors	Align multiline messages to their label (add left margin)	2021-11-20 19:19:33 +00:00
rustc_expand	Stabilize format_args_capture	2021-11-15 10:14:29 +01:00
rustc_feature	Check for duplicate attributes.	2021-11-18 16:10:26 -08:00
rustc_fs_util	Migrate to 2021	2021-09-20 22:21:42 -04:00
rustc_graphviz	Revert "Auto merge of #89709 - clemenswasser:apply_clippy_suggestions_2, r=petrochenkov"	2021-10-15 11:28:23 +02:00
rustc_hir	Simplify for loop desugar	2021-11-21 08:15:21 -06:00
rustc_hir_pretty	Auto merge of #89124 - cjgillot:owner-info, r=michaelwoerister	2021-10-18 19:53:05 +00:00
rustc_incremental	Add -Zassert-incr-state to assert state of incremental cache	2021-11-12 13:41:46 -06:00
rustc_index	Generate documentation in rustc rustc_index::newtype_index macro	2021-11-13 18:50:29 -06:00
rustc_infer	Simplify for loop desugar	2021-11-21 08:15:21 -06:00
rustc_interface	add rustc option for using LLVM stack smash protection	2021-11-22 20:06:22 +01:00
rustc_lexer	use matches!() macro in more places	2021-11-06 16:13:14 +01:00
rustc_lint	Stabilize format_args_capture	2021-11-15 10:14:29 +01:00
rustc_lint_defs	Properly register text_direction_codepoint_in_comment lint.	2021-11-05 20:12:40 +01:00
rustc_llvm	add rustc option for using LLVM stack smash protection	2021-11-22 20:06:22 +01:00
rustc_macros	Avoid generating empty closures for fieldless enums	2021-11-22 21:22:35 -05:00
rustc_metadata	Add ty::Visibility::is_public()	2021-11-09 18:35:00 -08:00
rustc_middle	Simplify for loop desugar	2021-11-21 08:15:21 -06:00
rustc_mir_build	Simplify for loop desugar	2021-11-21 08:15:21 -06:00
rustc_mir_dataflow	Auto merge of #90788 - ecstatic-morse:issue-90752, r=wesleywiser	2021-11-23 17:44:33 +00:00
rustc_mir_transform	impl Copy/Clone for arrays in std, not in compiler	2021-11-08 13:11:58 -05:00
rustc_monomorphize	Rollup merge of #90701 - michaelwoerister:more-artifact-sizes, r=davidtwco	2021-11-09 19:00:45 +01:00
rustc_parse	Rollup merge of #90994 - Badel2:issue-90993, r=estebank	2021-11-20 22:33:49 +01:00
rustc_parse_format	Migrate to 2021	2021-09-20 22:21:42 -04:00
rustc_passes	Add checks for more empty attributes.	2021-11-18 16:10:28 -08:00
rustc_plugin_impl	Move rustc_middle::middle::cstore to rustc_session.	2021-10-03 16:08:51 +02:00
rustc_privacy	Add ty::Visibility::is_public()	2021-11-09 18:35:00 -08:00
rustc_query_impl	Revert "Add rustc lint, warning when iterating over hashmaps"	2021-10-28 11:01:42 -04:00
rustc_query_system	Manually outline error on incremental_verify_ich	2021-11-22 21:32:20 -05:00
rustc_resolve	Rollup merge of #90930 - Nilstrieb:fix-non-const-value-ice, r=estebank	2021-11-20 10:21:14 +01:00
rustc_save_analysis	Give inline const separate DefKind	2021-11-07 03:59:06 +00:00
rustc_serialize	Avoid generating empty closures for fieldless enums	2021-11-22 21:22:35 -05:00
rustc_session	add rustc option for using LLVM stack smash protection	2021-11-22 20:06:22 +01:00
rustc_span	Simplify for loop desugar	2021-11-21 08:15:21 -06:00
rustc_symbol_mangling	Revert "Add rustc lint, warning when iterating over hashmaps"	2021-10-28 11:01:42 -04:00
rustc_target	add rustc option for using LLVM stack smash protection	2021-11-22 20:06:22 +01:00
rustc_trait_selection	Simplify for loop desugar	2021-11-21 08:15:21 -06:00
rustc_traits	Make select_* methods return Vec for TraitEngine	2021-11-08 23:35:23 +08:00
rustc_ty_utils	Recurse through query system when checking ADT drop types, hopefully improving perf	2021-11-13 14:47:17 -05:00
rustc_type_ir	Add two inline annotations for hot functions	2021-10-03 12:43:43 -04:00
rustc_typeck	Auto merge of #88681 - ehuss:duplicate-attributes, r=petrochenkov	2021-11-22 02:15:25 +00:00