Matthias Krüger 104c4bc808 Rollup merge of #114009 - dvdhrm:pr/transmzst, r=pnkfelix ... compiler: allow transmute of ZST arrays with generics Extend the `SizeSkeleton` evaluator to shortcut zero-sized arrays, thus considering `[T; 0]` to have a compile-time fixed-size of 0. The existing evaluator already deals with generic arrays under the feature-guard `transmute_const_generics`. However, it merely allows comparing fixed-size types with fixed-size types, and generic types with generic types. For generic types, it merely compares whether their arguments match (ordering them first). Even if their exact sizes are not known at compile time, it can ensure that they will eventually be the same. This patch extends this by shortcutting the size-evaluation of zero sized arrays and thus allowing size comparisons of `()` with `[T; 0]`, where one contains generics and the other does not. This code is guarded by `transmute_const_generics` (#109929), even though it is unclear whether it should be. However, this assumes that a separate stabilization PR is required to move this out of the feature guard. Initially reported in #98104.		2024-03-22 20:31:28 +01:00
..
rustc
rustc_abi	Auto merge of #121668 - erikdesjardins:commonprim, r=scottmcm,oli-obk	2024-03-13 15:25:35 +00:00
rustc_arena	rename ptr::invalid -> ptr::without_provenance	2024-02-21 20:15:52 +01:00
rustc_ast	Auto merge of #122869 - matthiaskrgr:rollup-0navj4l, r=matthiaskrgr	2024-03-22 12:29:42 +00:00
rustc_ast_ir	Fix typo in VisitorResult	2024-03-08 23:20:29 -05:00
rustc_ast_lowering	Auto merge of #122869 - matthiaskrgr:rollup-0navj4l, r=matthiaskrgr	2024-03-22 12:29:42 +00:00
rustc_ast_passes	Rollup merge of #121619 - RossSmyth:pfix_match, r=petrochenkov	2024-03-22 11:36:58 +01:00
rustc_ast_pretty	Rollup merge of #121619 - RossSmyth:pfix_match, r=petrochenkov	2024-03-22 11:36:58 +01:00
rustc_attr	Rename IntoDiagnostic as Diagnostic.	2024-03-11 09:15:09 +11:00
rustc_baked_icu_data
rustc_borrowck	Rollup merge of #122733 - oli-obk:error_prop, r=compiler-errors	2024-03-21 17:46:49 +01:00
rustc_builtin_macros	Rollup merge of #121619 - RossSmyth:pfix_match, r=petrochenkov	2024-03-22 11:36:58 +01:00
rustc_codegen_cranelift	Auto merge of #122580 - saethlin:compiler-builtins-can-panic, r=pnkfelix	2024-03-22 16:55:11 +00:00
rustc_codegen_gcc	Auto merge of #122055 - compiler-errors:stabilize-atb, r=oli-obk	2024-03-19 00:04:09 +00:00
rustc_codegen_llvm	coverage: Clean up marker statements that aren't needed later	2024-03-22 20:20:41 +11:00
rustc_codegen_ssa	Auto merge of #122580 - saethlin:compiler-builtins-can-panic, r=pnkfelix	2024-03-22 16:55:11 +00:00
rustc_const_eval	Rollup merge of #122542 - Zalathar:cleanup, r=oli-obk	2024-03-22 11:37:00 +01:00
rustc_data_structures	Auto merge of #122568 - RalfJung:mentioned-items, r=oli-obk	2024-03-21 09:01:18 +00:00
rustc_driver
rustc_driver_impl	Rollup merge of #122847 - workingjubilee:suggest-rust-min-stack-workaround-on-overflow, r=TaKO8Ki	2024-03-22 11:37:02 +01:00
rustc_error_codes	Auto merge of #122055 - compiler-errors:stabilize-atb, r=oli-obk	2024-03-19 00:04:09 +00:00
rustc_error_messages	Rename SubdiagnosticMessage as SubdiagMessage.	2024-03-05 12:14:49 +11:00
rustc_errors	Auto merge of #122754 - Mark-Simulacrum:bootstrap-bump, r=albertlarsan68	2024-03-20 13:43:41 +00:00
rustc_expand	Rollup merge of #121619 - RossSmyth:pfix_match, r=petrochenkov	2024-03-22 11:36:58 +01:00
rustc_feature	Rollup merge of #121619 - RossSmyth:pfix_match, r=petrochenkov	2024-03-22 11:36:58 +01:00
rustc_fluent_macro	Rename SubdiagnosticMessage as SubdiagMessage.	2024-03-05 12:14:49 +11:00
rustc_fs_util	Invert diagnostic lints.	2024-02-06 13:12:33 +11:00
rustc_graphviz	Invert diagnostic lints.	2024-02-06 13:12:33 +11:00
rustc_hir	Auto merge of #122869 - matthiaskrgr:rollup-0navj4l, r=matthiaskrgr	2024-03-22 12:29:42 +00:00
rustc_hir_analysis	Auto merge of #122869 - matthiaskrgr:rollup-0navj4l, r=matthiaskrgr	2024-03-22 12:29:42 +00:00
rustc_hir_pretty	Implement macro-based deref!() syntax for deref patterns	2024-03-21 11:42:49 -04:00
rustc_hir_typeck	Arrange methods on HirTyLowerer more logically	2024-03-22 06:32:51 +01:00
rustc_incremental	rename items -> free_items	2024-03-21 14:27:11 +01:00
rustc_index	doc: Add better explanation	2024-03-06 16:54:42 +01:00
rustc_index_macros	Remove SpecOptionPartialEq	2024-03-19 16:32:01 +00:00
rustc_infer	Auto merge of #122824 - oli-obk:no_ord_def_id2, r=estebank,michaelwoerister	2024-03-22 08:10:40 +00:00
rustc_interface	Rollup merge of #122847 - workingjubilee:suggest-rust-min-stack-workaround-on-overflow, r=TaKO8Ki	2024-03-22 11:37:02 +01:00
rustc_lexer	Invert diagnostic lints.	2024-02-06 13:12:33 +11:00
rustc_lint	Rollup merge of #121619 - RossSmyth:pfix_match, r=petrochenkov	2024-03-22 11:36:58 +01:00
rustc_lint_defs	Rollup merge of #121720 - tmandry:split-refining, r=compiler-errors	2024-03-16 23:28:47 +01:00
rustc_llvm	Update the minimum external LLVM to 17	2024-03-17 10:11:04 -07:00
rustc_log	rustc_log: expose tracing-tree "wraparound" in an env var	2024-03-03 12:33:26 +01:00
rustc_macros	Rename diagnostic derive things.	2024-03-11 10:06:34 +11:00
rustc_metadata	Auto merge of #121123 - compiler-errors:item-assumptions, r=oli-obk	2024-03-21 06:12:24 +00:00
rustc_middle	Rollup merge of #114009 - dvdhrm:pr/transmzst, r=pnkfelix	2024-03-22 20:31:28 +01:00
rustc_mir_build	Rollup merge of #121619 - RossSmyth:pfix_match, r=petrochenkov	2024-03-22 11:36:58 +01:00
rustc_mir_dataflow	step cfgs	2024-03-20 08:49:13 -04:00
rustc_mir_transform	coverage: Clean up marker statements that aren't needed later	2024-03-22 20:20:41 +11:00
rustc_monomorphize	Auto merge of #122580 - saethlin:compiler-builtins-can-panic, r=pnkfelix	2024-03-22 16:55:11 +00:00
rustc_next_trait_solver	Allow a way to add constructors for rustc_type_ir types	2024-03-04 15:39:59 +00:00
rustc_parse	Rollup merge of #121619 - RossSmyth:pfix_match, r=petrochenkov	2024-03-22 11:36:58 +01:00
rustc_parse_format	Extend format arg help for simple tuple index access expression	2024-03-16 22:33:02 +00:00
rustc_passes	Rollup merge of #121619 - RossSmyth:pfix_match, r=petrochenkov	2024-03-22 11:36:58 +01:00
rustc_pattern_analysis	Rollup merge of #122644 - Nadrieril:complexity-tests, r=compiler-errors	2024-03-21 17:46:48 +01:00
rustc_privacy	rename items -> free_items	2024-03-21 14:27:11 +01:00
rustc_query_impl	Verify that query keys result in unique dep nodes	2024-03-12 05:31:41 +01:00
rustc_query_system	Rollup merge of #122245 - saethlin:check-dep-graph-size, r=petrochenkov	2024-03-12 09:04:00 -07:00
rustc_resolve	Don't suggest deref macro since it's unstable	2024-03-21 11:42:49 -04:00
rustc_serialize	Stabilize associated type bounds	2024-03-08 20:56:25 +00:00
rustc_session	Rename some target_cfg variables as target.	2024-03-21 11:50:40 +11:00
rustc_smir	s/place_debug/place_pretty in SMIR	2024-03-20 18:02:11 -07:00
rustc_span	Auto merge of #122869 - matthiaskrgr:rollup-0navj4l, r=matthiaskrgr	2024-03-22 12:29:42 +00:00
rustc_symbol_mangling	Rollup merge of #122855 - workingjubilee:mangle-64-bit-chauvinism, r=compiler-errors	2024-03-22 11:37:03 +01:00
rustc_target	Rollup merge of #122810 - nnethercote:rm-target_override, r=WaffleLapkin	2024-03-21 17:46:51 +01:00
rustc_trait_selection	Update local variables and tracing calls	2024-03-22 06:32:23 +01:00
rustc_traits	Merge check_mod_impl_wf and check_mod_type_wf	2024-03-07 06:27:09 +00:00
rustc_transmute	Avoid various uses of Option<Span> in favor of using DUMMY_SP in the few cases that used None	2024-03-18 09:34:08 +00:00
rustc_ty_utils	Fix ABI for FnMut/Fn impls for async closures	2024-03-19 16:59:24 -04:00
rustc_type_ir	Update (doc) comments	2024-03-22 06:31:51 +01:00
stable_mir	Rollup merge of #122801 - celinval:smir-pretty, r=compiler-errors	2024-03-21 12:05:08 +01:00