Squashed commit of the following: commit 84d44dd1d8ec1e98fff94272ba4f96b2a1f044ca Merge: fa6d1e75125 d23dc2093c2 Author: bors Date: Tue Oct 10 06:04:08 2023 +0000 Auto merge of #116366 - estebank:issue-103982, r=oli-obk Suggest labeling block if `break` is in bare block Fix #103982. commit fa6d1e75125d9c94c21a58c2301492026031fcb8 Merge: 59edd670569 14d29be03c5 Author: bors Date: Tue Oct 10 00:08:23 2023 +0000 Auto merge of #109882 - ecnelises:aix_std, r=workingjubilee Support AIX in Rust standard library Also containing original contributions from `@bzEq` . commit d23dc2093c2037a3f401d917ddb9e9c8507ef116 Author: Esteban Küber Date: Mon Oct 9 22:48:10 2023 +0000 Account for macros commit 59edd67056919c83c59001a8b4f2d8749359377a Merge: cdddcd3bea3 592163fb71a Author: bors Date: Mon Oct 9 21:03:41 2023 +0000 Auto merge of #116497 - compiler-errors:impl-span, r=cjgillot Extend `impl`'s `def_span` to include its where clauses Typically, we highlight the def-span of an impl in a diagnostic due to either: 1. coherence error 2. trait evaluation cycle 3. invalid implementation of built-in trait I find that an impl's where clauses are very often required to understanding why these errors come about, which is unfortunate since where clauses may be located on different lines and don't show up in the error. This PR expands the def-span of impls to include these where clauses. r? cjgillot since you've touched this code a while back to make some spans shorter, but you can also reassign to wg-diagnostics or compiler if you're busy or have no strong opinions. commit c30d57bb77535f3923cbfa666e84d1916b6bce37 Author: Esteban Küber Date: Wed Oct 4 01:29:45 2023 +0000 fix commit 5c17b8be61b69be6c38619f829ba81c64212110d Author: Esteban Küber Date: Tue Oct 3 21:34:52 2023 +0000 Move some tests around commit daac0114591777f29e2f6396e8c2bd5d2c506788 Author: Esteban Küber Date: Tue Oct 3 00:20:59 2023 +0000 Suggest labeling block if `break` is in bare block Fix #103982. commit cdddcd3bea35049dab56888d4391cb9b5b1b4491 Merge: 317783ad2c1 89d610cd06f Author: bors Date: Mon Oct 9 17:14:17 2023 +0000 Auto merge of #116532 - onur-ozkan:enable-rustflags-bootstrap-on-bootstrap, r=albertlarsan68 Add RUSTFLAGS_BOOTSTRAP to RUSTFLAGS for bootstrap compilation Adds `RUSTFLAGS_BOOTSTRAP` to `RUSTFLAGS` for bootstrap compilation when `RUSTFLAGS_BOOTSTRAP` exists in the environment. With this PR, `RUSTFLAGS_BOOTSTRAP` will affect every build(as we already do for rustc and std) compiled with stage0 compiler. Resolves #94234 commit 317783ad2c128037ab1ab7722fa3fa61a9e481a5 Merge: be581d9f82a 27a5146e7cd Author: bors Date: Mon Oct 9 15:08:28 2023 +0000 Auto merge of #116569 - matthiaskrgr:rollup-ni0jdd6, r=matthiaskrgr Rollup of 6 pull requests Successful merges: - #115882 (improve the suggestion of `generic_bound_failure`) - #116537 (Fix suggestion span involving wrongly placed generic arg on variant) - #116543 (In smir `find_crates` returns `Vec` instead of `Option`) - #116549 (Simplify some mir passes by using let chains) - #116556 (Sync rustc_codegen_cranelift) - #116561 (Add a test for fixed ICE) r? `@ghost` `@rustbot` modify labels: rollup commit 27a5146e7cd669cd9979865c04929de10fd7b7b3 Merge: ea5cac02e89 2e000ebaa59 Author: Matthias Krüger Date: Mon Oct 9 16:26:03 2023 +0200 Rollup merge of #116561 - ouz-a:testfor_115517, r=compiler-errors Add a test for fixed ICE Addresses https://github.com/rust-lang/rust/issues/115517#issuecomment-1730164116 Closes #115517 r? ``@compiler-errors`` commit ea5cac02e8921e4e3aeb1830b68b88adc3898b27 Merge: 148f5c1bdf9 3ed37652593 Author: Matthias Krüger Date: Mon Oct 9 16:26:02 2023 +0200 Rollup merge of #116556 - bjorn3:sync_cg_clif-2023-10-09, r=bjorn3 Sync rustc_codegen_cranelift The highlights this time are improved simd and inline asm support, `is_x86_feature_detected!()` returning the actual cpu features when inline asm support is enabled and a couple of bug fixes. r? ```@ghost``` ```@rustbot``` label +A-codegen +A-cranelift +T-compiler +subtree-sync commit 148f5c1bdf974e7fc9504aef156016a4852e2053 Merge: 2266e794212 47ebffabb81 Author: Matthias Krüger Date: Mon Oct 9 16:26:02 2023 +0200 Rollup merge of #116549 - DaniPopes:miropts-let-chains, r=oli-obk Simplify some mir passes by using let chains commit 2266e79421279c63e7a6d5b92efe4800940012f9 Merge: 374c885f4a2 4ff6e87a8cb Author: Matthias Krüger Date: Mon Oct 9 16:26:01 2023 +0200 Rollup merge of #116543 - ouz-a:crate_return_vec, r=oli-obk In smir `find_crates` returns `Vec` instead of `Option` Addresses https://github.com/rust-lang/project-stable-mir/issues/40 r? `@oli-obk` commit 374c885f4a29aaf391c5d5eaa1d4c01164725333 Merge: 389747c41dc 23a3b9e4492 Author: Matthias Krüger Date: Mon Oct 9 16:26:01 2023 +0200 Rollup merge of #116537 - gurry:116473-ice-sugg-overlap, r=compiler-errors Fix suggestion span involving wrongly placed generic arg on variant Fixes #116473 The span computation was wrong. It went from the end of the variant to the end of the (wrongly placed) args. However, the variant lived in a different expansion and this resulted in a nonsensical span that overlaps with another and thereby leads to the ICE. In the fix I've changed span computation to not be based on the location of the variant, but purely on the location of the args. I simply extend the start of the args span 2 positions to the left and that includes the `::` and that's all we need apparently. This approach produces a correct span regardless of which macro/expansion the args reside in and where the variant is. commit 389747c41dc81a23088d8aa27425923d7d81f70c Merge: 7ed044c075f a8830631b94 Author: Matthias Krüger Date: Mon Oct 9 16:26:00 2023 +0200 Rollup merge of #115882 - aliemjay:diag-name-region-1, r=compiler-errors improve the suggestion of `generic_bound_failure` - Fixes #115375 - suggest the bound in the correct scope: trait or impl header vs assoc item. See `tests/ui/suggestions/lifetimes/type-param-bound-scope.rs` - don't suggest a lifetime name that conflicts with the other late-bound regions of the function: ```rust type Inv<'a> = *mut &'a (); fn check_bound<'a, T: 'a>(_: T, _: Inv<'a>) {} fn test<'a, T>(_: &'a str, t: T, lt: Inv<'_>) { // suggests a new name `'a` check_bound(t, lt); //~ ERROR } ``` commit be581d9f82a1bcc547c685d7e1b411c246b0bb00 Merge: 7ed044c075f 1210aac1c00 Author: bors Date: Mon Oct 9 13:18:47 2023 +0000 Auto merge of #116142 - GuillaumeGomez:enum-variant-display, r=fmease [rustdoc] Show enum discrimant if it is a C-like variant Fixes https://github.com/rust-lang/rust/issues/101337. We currently display values for associated constant items in traits: ![image](https://github.com/rust-lang/rust/assets/3050060/03e566ec-c670-47b4-8ca2-b982baa7a0f4) And we also display constant values like [here](file:///home/imperio/rust/rust/build/x86_64-unknown-linux-gnu/doc/std/f32/consts/constant.E.html). I think that for coherency, we should display values of C-like enum variants. With this change, it looks like this: ![image](https://github.com/rust-lang/rust/assets/3050060/b53fbbe0-bdb1-4289-8537-f2dd4988e9ac) As for the display of the constant value itself, I used what we already have to keep coherency. We display the C-like variants value in the following scenario: 1. It is a C-like variant with a value set => all the time 2. It is a C-like variant without a value set: All other variants are C-like variants and at least one them has its value set. Here is the result in code: ```rust // Ax and Bx value will be displayed. enum A { Ax = 12, Bx, } // Ax and Bx value will not be displayed enum B { Ax, Bx, } // Bx value will not be displayed enum C { Ax(u32), Bx, } // Bx value will not be displayed, Cx value will be displayed. #[repr(u32)] enum D { Ax(u32), Bx, Cx = 12, } ``` r? `@notriddle` commit 1210aac1c00d9d3435ba801e0dee2d4ac502a738 Author: Guillaume Gomez Date: Mon Oct 9 14:33:04 2023 +0200 Add more complex test cases for enum discriminant display commit 4b6fc8b70fd355614bad31d4268993dc7ef17431 Author: Guillaume Gomez Date: Mon Oct 9 14:26:52 2023 +0200 Improve code commit 592163fb71a07383141a882d185d80b874490982 Author: Michael Goulet Date: Fri Oct 6 20:35:52 2023 +0000 Extend impl's def_span to include where clauses commit 2e000ebaa59851b0be911f016375b20c3b5288c0 Author: Oğuz Ağcayazı Date: Mon Oct 9 13:30:21 2023 +0300 add test commit 7ed044c075fc0e7ad2574d3144ca00ba14608d8f Merge: 093b9d5b295 31cb61b3117 Author: bors Date: Mon Oct 9 09:43:10 2023 +0000 Auto merge of #115238 - workingjubilee:ich-entferne-welke-blumen, r=nikic Formally demote tier 2 MIPS targets to tier 3 Per https://github.com/rust-lang/compiler-team/issues/648 Fixes https://github.com/rust-lang/rust/issues/115218 commit 3ed37652593c188734b226dcecf920cee019961b Author: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Mon Oct 9 09:04:52 2023 +0000 Remove no longer used dependency from the list of allowed dependencies commit 169055f2ffef79b453e0d89599d0f0c5dabc0adb Merge: 093b9d5b295 81dc066758e Author: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Mon Oct 9 08:52:46 2023 +0000 Merge commit '81dc066758ec150b43822d4a0c84aae20fe10f40' into sync_cg_clif-2023-10-09 commit 81dc066758ec150b43822d4a0c84aae20fe10f40 Author: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Mon Oct 9 08:33:47 2023 +0000 Rustup to rustc 1.75.0-nightly (bf9a1c8a1 2023-10-08) commit 88198c70e4f0eaf06231122a15d6c967ae0b6159 Merge: cc5db2c1c84 fea943debfa Author: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Mon Oct 9 08:26:09 2023 +0000 Sync from rust bf9a1c8a193fc373897196321215794c8bebbeec commit 4ff6e87a8cb0d5cba020917bc30ea0f7ef5d2a5b Author: Oğuz Ağcayazı Date: Sun Oct 8 22:55:16 2023 +0300 return crates instead of a crate commit 14d29be03c58587ef4bc7b3d2e1e1e29f2be5985 Author: Qiu Chaofan Date: Mon Apr 3 12:33:51 2023 +0800 Support AIX in Rust standard library commit 093b9d5b295d85e144d0ee7da65ea03987214c06 Merge: 1f48cbc3f8d 005ec2e51ce Author: bors Date: Mon Oct 9 06:00:23 2023 +0000 Auto merge of #116533 - cjgillot:skip-trivial-mir, r=oli-obk Do not run optimizations on trivial MIR. Fixes https://github.com/rust-lang/rust/issues/116513 The bug was introduced in https://github.com/rust-lang/rust/pull/110728, which put the check too early in the query chain. cc `@oli-obk` `@ouz-a` commit 47ebffabb81e80bb3ad3992af1fbb4035e362d77 Author: DaniPopes <57450786+DaniPopes@users.noreply.github.com> Date: Mon Oct 9 05:22:31 2023 +0200 Simplify some mir passes by using let chains commit 23a3b9e44926aa0d4c49a722654ef59f010b55ba Author: Gurinder Singh Date: Mon Oct 9 08:04:00 2023 +0530 Fix suggestion span involving wrongly placed generic arg on enum variants When the variant and the (wrongly placed) args are at separate source locations such as being in different macos or one in a macro and the other somwhere outside of it, the arg spans we computed spanned the entire distance between such locations and were hence invalid. . commit 1f48cbc3f8dbd393a7e713a0f90d7c6ec72d58ee Merge: 37fda989ea8 9d211b044d3 Author: bors Date: Mon Oct 9 02:08:13 2023 +0000 Auto merge of #116096 - cjgillot:debuginfo-fndef-size, r=nikic Make FnDef 1-ZST in LLVM debuginfo. Discussed in https://rust-lang.zulipchat.com/#narrow/stream/187780-t-compiler.2Fwg-llvm/topic/LLVM.20HEAD.20llvm.2Edbg.2Edeclare.2Falloca.20size.20mismatch r? `@nikic` commit 37fda989ea8acb1db02748b8478c64e51a515bbd Merge: bf9a1c8a193 ad8271dd56b Author: bors Date: Mon Oct 9 00:03:52 2023 +0000 Auto merge of #116468 - nnethercote:rustc_serialize, r=Mark-Simulacrum Streamline `rustc_serialize` r? `@Mark-Simulacrum` commit 31cb61b3117ca2a9957c19821e020d1d8c8534c7 Author: Jubilee Young Date: Sun Oct 8 15:35:07 2023 -0700 Drop all MIPS targets from CI commit 14cdb3808dadcf9ee57f29d49a0d86c7bb545c91 Author: Jubilee Young Date: Fri Aug 25 21:08:52 2023 -0700 Drop mips*-unknown-linux-musl* to tier 3 Also be more pedantic about spelling: - LE? Is it "less than or equal to"? Say "little endian". - We're Rust, not C, preserve the initial capital in "N64". - "MUSL" doesn't stand for anything; Rich Felker spells it "musl". commit 03870154f4badc1939f718ac74c49438ce507241 Author: Jubilee Young Date: Sun Jul 2 20:59:31 2023 -0700 Drop mips*-unknown-linux-gnu* to tier 3 In the process, be more pedantic about spelling: - LE? Do you mean "limited edition"? It's "little endian". - The name of the ABI is "N64" as in "Nintendo 64". commit 9d211b044d3198f8e2c9a3e5678fafd2a61a5308 Author: Camille GILLOT Date: Sun Oct 8 16:43:57 2023 +0000 Ignore MSVC in test. commit 098fc9715e0f0cc3aa5c6ff0512e389c24d09254 Author: Camille GILLOT Date: Mon Sep 18 16:29:50 2023 +0000 Make FnDef 1-ZST in LLVM debuginfo. commit bf9a1c8a193fc373897196321215794c8bebbeec Merge: 4f4a413fe69 7ecb09d05c0 Author: bors Date: Sun Oct 8 15:18:22 2023 +0000 Auto merge of #116515 - petrochenkov:nolegflavor, r=lqd linker: Remove unstable legacy CLI linker flavors commit 4f4a413fe6931d0ad9d3ac6bd20ff36398961e64 Merge: 1e3c8f196b2 eaafb256f8e Author: bors Date: Sun Oct 8 12:38:14 2023 +0000 Auto merge of #116454 - tmiasko:small-dominators, r=cjgillot Generalize small dominators optimization * Use small dominators optimization from 640ede7b0a1840415cb6ec881c2210302bfeba18 more generally. * Merge `DefLocation` and `LocationExtended` since they serve the same purpose. commit 005ec2e51ce99c6dd5e88c273b3f9b273fdf3f41 Author: Camille GILLOT Date: Sun Oct 8 12:08:09 2023 +0000 Do not run optimizations on trivial MIR. commit cc5db2c1c84169872f6278a3eb5f03c5abdef641 Merge: 81093441c16 2672876b63c Author: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Sun Oct 8 13:21:53 2023 +0200 Merge pull request #1397 from bjorn3/inline_asm_tweaks Test inline asm support on CI commit 1e3c8f196b2753b3e463bc6be2dc446f36653279 Merge: ab039f79b8a b704697fba5 Author: bors Date: Sun Oct 8 10:50:33 2023 +0000 Auto merge of #116183 - cjgillot:debug-dse-always, r=oli-obk Always preserve DebugInfo in DeadStoreElimination. This is a version of #106852 that does not check the current crate's debuginfo flag, and always attempts to preserve debuginfo. I haven't figured out how to handle mixing debuginfo levels for std, the one for the test, and the one for the CI target just right to merge #106852, so this can at least fix the debuginfo issue. Fixes https://github.com/rust-lang/rust/issues/103655 commit 89d610cd06f90cd6bd0bccdb395a3127290e1b45 Author: onur-ozkan Date: Sun Oct 8 13:41:56 2023 +0300 Add RUSTFLAGS_BOOTSTRAP to RUSTFLAGS for bootstrap compilation Note that RUSTFLAGS_BOOTSTRAP should always be added to the end of RUSTFLAGS to be actually effective (e.g., if we have `-Dwarnings` in RUSTFLAGS, passing `-Awarnings` from RUSTFLAGS_BOOTSTRAP should override it). Signed-off-by: onur-ozkan commit a8830631b9446c8b48cd4eba1ef448eb5a258cdc Author: Ali MJ Al-Nasrawy Date: Sun Oct 8 10:06:17 2023 +0000 remove trailing dots commit 996ffcb718941fc36ec5fdee38ed99ce20ec06d5 Author: Ali MJ Al-Nasrawy Date: Sun Sep 17 14:32:02 2023 +0000 always show and explain sub region commit 5be0b2283aa26f0fee1e3d1161524a23d65484b7 Author: Ali MJ Al-Nasrawy Date: Fri Sep 8 01:35:51 2023 +0000 improve the suggestion of generic_bound_failure commit 2672876b63c4e4a46071c4661cc06098ab746eac Author: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Sat Oct 7 11:14:24 2023 +0000 Run inline asm rustc tests on CI commit 91e5bd87e6ef2a3320bf610cb7cc2e2d64d7606f Author: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Sat Oct 7 11:14:10 2023 +0000 Skip cpuid shim when inline asm support is enabled cg_clif should support enough simd intrinsics now to not need almost all cpu features to be force disabled. In addition they can't be disabled anyway when using a sysroot compiled by LLVM. commit 07147f34d0691a0709b0e1f5ef62c8029d2da58d Author: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Sat Oct 7 11:12:46 2023 +0000 Fix inline asm on macOS commit 81093441c16dba56221bae016b394d0fb5dc57a2 Author: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Sun Oct 8 09:30:32 2023 +0000 Rustup to rustc 1.75.0-nightly (97c81e1b5 2023-10-07) commit 1906ec56fce048588b319bfbc97126ba9d8c5de2 Merge: e759603da1d c9f6ac45d9a Author: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Sun Oct 8 09:22:39 2023 +0000 Sync from rust 97c81e1b537088f1881c8894ee8579812ed9b6d1 commit ab039f79b8a0cfea01fb8aa10860560b9689e4c6 Merge: 6d271692b0c b563595c6e6 Author: bors Date: Sun Oct 8 09:04:57 2023 +0000 Auto merge of #116514 - petrochenkov:nogccld, r=lqd linker: Remove `-Zgcc-ld` option It is subsumed by `-Clinker-flavor=*-lld-cc -Clink-self-contained=+linker` options now. r? `@lqd` commit 6d271692b0cc8ea1e91bbc8c090c88e7dbd5efe3 Merge: e08de860365 d9a7afec8b0 Author: bors Date: Sun Oct 8 07:13:19 2023 +0000 Auto merge of #116509 - Enselic:rustc-test-op, r=Mark-Simulacrum tests/run-make: Move RUSTC_TEST_OP to tools.mk and use in more places commit b563595c6e6002ab582e2eb4ebd2a19baa8a1e34 Author: Vadim Petrochenkov Date: Sat Oct 7 13:57:29 2023 +0300 linker: Remove `-Zgcc-ld` option It is subsumed by `-Clinker-flavor=*-lld-cc -Clink-self-contained=+linker` options now commit fea943debfab3859853ef623e06248ffbfd603ab Merge: c9f6ac45d9a 2753052adf3 Author: bors Date: Sun Oct 8 05:24:16 2023 +0000 Auto merge of #116487 - tamird:avoid-unwrap-absolute, r=bjorn3 compiler: env/path handling fixes Please see individual commits. r? `@bjorn3` cf. #116426 commit e08de860365aa73653dc5fc45b09f194785f3e57 Merge: 1516ca1bc01 3cac3de200a Author: bors Date: Sun Oct 8 05:24:16 2023 +0000 Auto merge of #116487 - tamird:avoid-unwrap-absolute, r=bjorn3 compiler: env/path handling fixes Please see individual commits. r? `@bjorn3` cf. #116426 commit 1516ca1bc01181af73c7b7760fb90137007da75f Merge: fdf32ee9fcd 5048f813130 Author: bors Date: Sun Oct 8 03:36:37 2023 +0000 Auto merge of #116486 - van-ema:master, r=nikic Fix to register analysis passes with -Zllvm-plugins at link-time This PR fixes an unexpected behavior of the `-Zllvm-plugins` flag. It allows to run an out-of-tree pass as part of LTO. However, analysis passes are registered before the plugin is loaded. As a result an analysis pass, which is passed as a plugin, is not registered. This causes the LLVM PassManager to fail when the analysis pass is queried from a transformation pass [(here)](https://github.com/llvm/llvm-project/blob/main/llvm/include/llvm/IR/PassManager.h#L776). This fix mimics the bahavior in [LLVM LTOBackend.cpp](https://github.com/llvm/llvm-project/blob/main/llvm/lib/LTO/LTOBackend.cpp#L273) by loading the plugin before the analysis passes are registered. Tested with rustc 1.60 and 1.65 and LLVM-13.0.1. commit fdf32ee9fcd259913c7dece8f7b915b2d5560a49 Merge: e9addfdecf1 098dd979393 Author: bors Date: Sun Oct 8 01:48:31 2023 +0000 Auto merge of #116450 - Kobzol:automation-try-bors-ci, r=Mark-Simulacrum Enable new bors try branch to run on CI Needed to fix [this error](https://github.com/rust-lang/rust/actions/runs/6420044833/job/17431256956). Inspired by https://github.com/rust-lang/rust/pull/99988 Also, removes `try-merge` from the workflow. It shouldn't have been added in https://github.com/rust-lang/rust/pull/116353. r? `@Mark-Simulacrum` commit e9addfdecf14633324fc5c935f4f2983699bef7e Merge: 97c81e1b537 209789ef4c2 Author: bors Date: Sun Oct 8 00:04:17 2023 +0000 Auto merge of #114623 - Kobzol:opt-dist-gha-summaries, r=Mark-Simulacrum Print some information from try builds to GitHub summary This PR adds some logs from `opt-dist` (the duration of the individual steps of the build pipeline, and the size of the resulting artifacts) to GitHub [job summaries](https://github.blog/2022-05-09-supercharging-github-actions-with-job-summaries/), in order to quickly show useful information right in the GHA CI job page, without needing to read the full log. [This](https://github.com/rust-lang-ci/rust/actions/runs/5810621086) is how the summary currently looks like. r? `@ghost` commit 97c81e1b537088f1881c8894ee8579812ed9b6d1 Merge: cf21a0823b8 e53c7787772 Author: bors Date: Sat Oct 7 20:59:32 2023 +0000 Auto merge of #116416 - Kobzol:ci-host-llvm-17-0-2, r=Mark-Simulacrum Bump host compiler on x64 dist Linux to LLVM 17.0.2 17.0.0-rc3 had a bunch of miscompilations, and it's probably better in general not to use a RC version of LLVM long term on CI. commit cf21a0823b8a863fb3f1ed33d7d31bfd4881c2d3 Merge: 598e29bf700 81d1f7ea9d8 Author: bors Date: Sat Oct 7 19:11:17 2023 +0000 Auto merge of #116437 - nnethercote:rustc_features, r=Nilstrieb Clean up `rustc_features` Plenty more to be done, but this is a decent start. r? `@Nilstrieb` commit 7ecb09d05c05daa437fba557b0f6733d6759c96c Author: Vadim Petrochenkov Date: Sat Oct 7 14:27:58 2023 +0300 linker: Remove unstable legacy CLI linker flavors commit 598e29bf70074de5ce2701a867450591083c4ff1 Merge: 935a091a783 258a65d4a20 Author: bors Date: Sat Oct 7 17:10:02 2023 +0000 Auto merge of #100806 - timvermeulen:split_inclusive_double_ended_bound, r=dtolnay Fix generic bound of `str::SplitInclusive`'s `DoubleEndedIterator` impl `str::SplitInclusive`'s `DoubleEndedIterator` implementation currently uses a `ReverseSearcher` bound for the corresponding searcher. A `DoubleEndedSearcher` bound should have been used instead. `DoubleEndedIterator` requires that repeated `next_back` calls produce the same items as repeated `next` calls, in opposite order. `ReverseSearcher` lets you search starting from the back of a string, but it makes no guarantees about how its matches correspond to the matches found by a forward search. `DoubleEndedSearcher` is a subtrait of `ReverseSearcher` and does require that the same matches are found in both directions. This bug fix is a breaking change. Calling `next_back` on `"a+++b".split_inclusive("++")` is currently accepted with repeated calls producing `"b"` and `"a+++"`, while forward iteration yields `"a++"` and `"+b"`. Also see https://github.com/rust-lang/rust/issues/100756#issuecomment-1221307166 for more details. I believe that this is the only iterator that uses this bound incorrectly — other related iterators such as `str::Split` do have a `DoubleEndedSearcher` bound for their `DoubleEndedIterator` implementation. And `slice::SplitInclusive` doesn't face this problem at all because it doesn't use patterns, only a predicate. cc `@SkiFire13` commit 935a091a7834253a845a92629b8f1109b5befa5d Merge: 91db3bdc8ce 8dc92a360c3 Author: bors Date: Sat Oct 7 15:21:05 2023 +0000 Auto merge of #116330 - RalfJung:dont-key-on-allocid, r=oli-obk remove Key impls for types that involve an AllocId I don't understand how but somehow that leads to issues like https://github.com/rust-lang/rust/issues/83085? Anyway removing unused impls doesn't seem like a bad idea. The concerning part is that of course nothing will stop us from having such impls again in the future, alongside re-introducing bugs like #83085. r? `@oli-obk` commit 91db3bdc8cefa5a9bd58b8fbc3ce5ef1859b4b93 Merge: 48e24629e94 56e4715fc6e Author: bors Date: Sat Oct 7 13:33:19 2023 +0000 Auto merge of #116310 - Enselic:check_fn_args_move_size, r=oli-obk rustc_monomorphize: Introduce check_fn_args_move_size() This is in preparation of improving diagnostics of "large moves into functions", a.k.a. passing args. Note: This PR consists of two self-contained commits that can be reviewed independently. For https://github.com/rust-lang/rust/issues/83518 Also see https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/arg.20Spans.20for.20TerminatorKind.3A.3ACall.3F r? `@oli-obk` who is E-mentor commit b0badc17cdc8d2f75061d2e4674a8adcfa8983d5 Author: Guillaume Gomez Date: Sat Oct 7 14:37:47 2023 +0200 Add cross-crate C-like variant test commit de70a77be235f839dede3c06fdb70c5528f540e6 Author: Guillaume Gomez Date: Sat Oct 7 14:37:30 2023 +0200 Correctly handle cross-crate C-like variants commit 1994d0b4a42b9b2d6e0c821f57d37a184f4df44a Author: Guillaume Gomez Date: Sat Oct 7 00:25:34 2023 +0200 Update enum-variant-value test commit 9e15f363be1f62cf81d4efb55d95a542663fe6da Author: Guillaume Gomez Date: Sat Oct 7 00:14:57 2023 +0200 Only display enum variants integer values if one of them has a value set commit e759603da1d281890cac241f244d2288c127b355 Author: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Sat Oct 7 09:47:03 2023 +0000 Consistently use eprintln inside the build system commit 48e24629e946339943b194163a81374cf533ce5a Merge: d087c6fae21 ad7045e160b Author: bors Date: Sat Oct 7 10:57:18 2023 +0000 Auto merge of #115583 - RalfJung:packed-unsized, r=lcnr fix detecting references to packed unsized fields Fixes https://github.com/rust-lang/rust/issues/115396 This is a breaking change, but permitted as a soundness fix. commit d087c6fae215484bf47ba6dda1bc836ef4c07ac5 Merge: 0f3d72aa7a7 cbe892fd659 Author: bors Date: Sat Oct 7 08:58:23 2023 +0000 Auto merge of #116457 - RalfJung:try_eval_scalar_int, r=cjgillot fix fast-path for try_eval_scalar_int Cc https://github.com/rust-lang/rust/pull/116281 `@Nadrieril` commit 56e4715fc6ef3cd8c008150ed0f1886a7696062f Author: Martin Nordholts Date: Sun Oct 1 09:03:41 2023 +0200 rustc_monomorphize: Introduce check_fn_args_move_size() So that we later can improve the accuracy of diagnostics. commit 41d24ccb49102bf6e2bfb5828f6d67abd8961e00 Author: Martin Nordholts Date: Sun Oct 1 08:51:47 2023 +0200 rustc_monomorphize: Move limit check into check_move_size() And rename to check_operand_move_size(). Later we will introduce check_fn_args_move_size(). commit 0f3d72aa7a71b58f487b7e4ed663cf5b23b746fd Merge: fc01a7432be a04b7a37445 Author: bors Date: Sat Oct 7 07:10:56 2023 +0000 Auto merge of #116508 - RalfJung:miri, r=RalfJung Miri subtree update r? `@ghost` commit d9a7afec8b079b16b6b6f2e23e1f375bc37b4abf Author: Martin Nordholts Date: Sat Oct 7 08:23:10 2023 +0200 tests/run-make: Use RUSTC_TEST_OP in more places commit 88966c477386db4ccabd18df3de52647d3540f96 Author: Martin Nordholts Date: Sat Oct 7 08:14:38 2023 +0200 tests/run-make: Move RUSTC_TEST_OP to tools.mk To reduce duplication. A follow-up commit will begin using it in even more places. commit f96541e9a9be7a5b28191be9229d72c8bf47baa7 Author: Martin Nordholts Date: Sat Oct 7 08:17:20 2023 +0200 tests/run-make: Remove wrong blessing advice run-make tests are not special but can be blessed like other tests, like this: ./x.py test --bless tests/run-make/unknown-mod-stdin commit a04b7a374458b640960798dffe83e614f7907562 Author: Ralf Jung Date: Sat Oct 7 07:56:15 2023 +0200 allow option-ext as a tool dependency (MPL licensed) commit 5aecfe467b94c1d1a5124b119a8864d6dce8596f Author: Ralf Jung Date: Sat Oct 7 07:55:48 2023 +0200 update lockfile commit fc01a7432be662270467a4c3fa4a38811b621d9d Merge: 4ea5190026d 6b98dcc743b Author: bors Date: Sat Oct 7 05:26:12 2023 +0000 Auto merge of #109214 - tosti007:std_collection_hash_new_rework, r=workingjubilee Use `HashMap::with_capacity_and_hasher` instead of using base Cleans up the internal logic for `HashMap::with_capacity` slightly. commit 1c42857135ca902122fdbe6e050ba1481431541b Merge: 3b08930677e 722736ac4ab Author: bors Date: Sat Oct 7 05:18:45 2023 +0000 Auto merge of #3113 - rust-lang:rustup-2023-10-07, r=saethlin Automatic sync from rustc commit 722736ac4ab71b34645149b6994c0d56c6143832 Merge: d322243e388 4ea5190026d Author: The Miri Conjob Bot Date: Sat Oct 7 05:10:55 2023 +0000 Merge from rustc commit d322243e38808ab0078a8ecad32d31c8f5d8060e Author: The Miri Conjob Bot Date: Sat Oct 7 05:01:29 2023 +0000 Preparing for merge from rustc commit 4ea5190026dbc1302b644d938e68bc6843cb8b24 Merge: 93b6a365680 93677276bc4 Author: bors Date: Sat Oct 7 02:20:50 2023 +0000 Auto merge of #116318 - pitaj:android-backtrace-build, r=workingjubilee Invoke `backtrace-rs` buildscript in `std` buildscript Based on #99883 by `@Arc-blroth` Depends on rust-lang/backtrace-rs#556 and rust-lang/cc-rs#705 commit 93b6a36568027e44a7345ae8d577c0d13545c79f Merge: 8fdb0a9b578 4b102b0d8d8 Author: bors Date: Sat Oct 7 00:27:14 2023 +0000 Auto merge of #116501 - workingjubilee:rollup-fpzov6m, r=workingjubilee Rollup of 4 pull requests Successful merges: - #116277 (dont call mir.post_mono_checks in codegen) - #116400 (Detect missing `=>` after match guard during parsing) - #116458 (Properly export function defined in test which uses global_asm!()) - #116500 (Add tvOS to target_os for register_dtor) r? `@ghost` `@rustbot` modify labels: rollup commit 4b102b0d8d8212bd2aca7ddd9ff8f699844e37c3 Merge: 5268120d4a1 3abef68e63e Author: Jubilee <46493976+workingjubilee@users.noreply.github.com> Date: Fri Oct 6 16:37:48 2023 -0700 Rollup merge of #116500 - simlay:tvos-support-for-register_dtor, r=workingjubilee Add tvOS to target_os for register_dtor Closes #116491. commit 5268120d4a10a879b0fe8aae0ffa9443b3e45266 Merge: 0d68e416a56 ecf271cfb62 Author: Jubilee <46493976+workingjubilee@users.noreply.github.com> Date: Fri Oct 6 16:37:47 2023 -0700 Rollup merge of #116458 - bjorn3:fix_global_asm_test, r=workingjubilee Properly export function defined in test which uses global_asm!() Currently the test passes with the LLVM backend as the codegen unit partitioning logic happens to place both the global_asm!() and the function which calls the function defined by the global_asm!() in the same CGU. With the Cranelift backend it breaks however as it will place all assembly in separate codegen units to be passed to an external linker. commit 0d68e416a568ae0e206bcf65a2c5234565ba3bf5 Merge: 6d1c3a40cb4 8fd345dd4b8 Author: Jubilee <46493976+workingjubilee@users.noreply.github.com> Date: Fri Oct 6 16:37:47 2023 -0700 Rollup merge of #116400 - estebank:issue-78585, r=WaffleLapkin Detect missing `=>` after match guard during parsing ``` error: expected one of `,`, `:`, or `}`, found `.` --> $DIR/missing-fat-arrow.rs:25:14 | LL | Some(a) if a.value == b { | - while parsing this struct LL | a.value = 1; | -^ expected one of `,`, `:`, or `}` | | | while parsing this struct field | help: try naming a field | LL | a: a.value = 1; | ++ help: you might have meant to start a match arm after the match guard | LL | Some(a) if a.value == b => { | ++ ``` Fix #78585. commit c9f6ac45d9a57e60ed4b2d63c96af49be2219ba1 Merge: ed900871cfc ffa2d3ab632 Author: Jubilee <46493976+workingjubilee@users.noreply.github.com> Date: Fri Oct 6 16:37:46 2023 -0700 Rollup merge of #116277 - RalfJung:post-mono, r=oli-obk dont call mir.post_mono_checks in codegen It seems like all tests are still passing when I remove this... let's see what CI says. commit 6d1c3a40cb4ce7b455e44834f79c5ecf39cd5021 Merge: 960754090ac fa248cd9e69 Author: Jubilee <46493976+workingjubilee@users.noreply.github.com> Date: Fri Oct 6 16:37:46 2023 -0700 Rollup merge of #116277 - RalfJung:post-mono, r=oli-obk dont call mir.post_mono_checks in codegen It seems like all tests are still passing when I remove this... let's see what CI says. commit 8fdb0a9b578ddbe7246d8088a93c09b7679c4616 Merge: 960754090ac 3706e6f61a9 Author: bors Date: Fri Oct 6 22:39:41 2023 +0000 Auto merge of #114709 - ShE3py:wasi-io-error-more, r=workingjubilee Use `io_error_more` on WASI #86442 added many variants to [`io::ErrorKind`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html), but `sys::wasi::decode_error_kind()` wasn't modified to use them. The preview1 `errno` list: https://github.com/WebAssembly/WASI/blob/4712d490fd7662f689af6faa5d718e042f014931/legacy/preview1/docs.md#-errno-variant Original implementation: #63814 `@rustbot` label +A-error-handling +C-enhancement +O-wasi commit 3abef68e63e12a1c6af2e09c2f020f778d2892ee Author: Sebastian Imlay Date: Fri Oct 6 18:11:49 2023 -0400 Add tvOS to target_os for register_dtor commit 91114d6616f58996b6009bcb23196e8dc253e8bf Author: Guillaume Gomez Date: Fri Oct 6 23:55:30 2023 +0200 Show values of C-like variants even if not defined by the user commit 960754090acc9cdd2a5a57586f244c0fc712d26c Merge: 94bc9c737ea 7f0cf8c0e41 Author: bors Date: Fri Oct 6 20:51:40 2023 +0000 Auto merge of #116492 - matthiaskrgr:rollup-xzfhmq1, r=matthiaskrgr Rollup of 7 pull requests Successful merges: - #114564 (Attempt to describe the intent behind the `From` trait further) - #116297 (add some docs to hooks/mod.rs) - #116423 (Fix typo in attrs.rs) - #116466 (`rustc_transmute` cleanups) - #116474 (Assorted small cleanups) - #116481 (Reuse existing `Some`s in `Option::(x)or`) - #116484 (Minor doc clarification in Once::call_once) r? `@ghost` `@rustbot` modify labels: rollup commit 7f0cf8c0e41dd5df27edfa57d42399dbab634320 Merge: f8dae0c20a0 c95015c2955 Author: Matthias Krüger Date: Fri Oct 6 21:17:51 2023 +0200 Rollup merge of #116484 - peterjoel:once-doc-clarify, r=cuviper Minor doc clarification in Once::call_once commit f8dae0c20a03a584c12146c89253e2c2ef93d4b2 Merge: 9796dfdd563 5432d13bb04 Author: Matthias Krüger Date: Fri Oct 6 21:17:50 2023 +0200 Rollup merge of #116481 - scottmcm:tweak-combinators, r=cuviper Reuse existing `Some`s in `Option::(x)or` LLVM still has trouble re-using discriminants sometimes when rebuilding a two-variant enum, so when we have the correct variant already built, just use it. That's shorter in the Rust code, as well as simpler in MIR and the optimized LLVM, so might as well: Thanks to `@veber-alex` for pointing out this opportunity in https://github.com/rust-lang/rust/issues/101210#issuecomment-1732470941 commit 9796dfdd563d9b7d09088b94b8e3314c61a3786c Merge: 25fbd133ea4 e7dabc9f877 Author: Matthias Krüger Date: Fri Oct 6 21:17:50 2023 +0200 Rollup merge of #116474 - nnethercote:rustc_assorted, r=spastorino Assorted small cleanups r? `@spastorino` commit 25fbd133ea4a0cf3e76820fa09d4a7cdaeb62775 Merge: 81192f2fc46 29ed8e492ab Author: Matthias Krüger Date: Fri Oct 6 21:17:49 2023 +0200 Rollup merge of #116466 - nnethercote:rustc_transmute, r=oli-obk `rustc_transmute` cleanups Just some things I found while poking around this code. r? `@oli-obk` commit 81192f2fc46ee8483efc908314d8c5f5e314799d Merge: fdb136a83f3 23efab4811c Author: Matthias Krüger Date: Fri Oct 6 21:17:49 2023 +0200 Rollup merge of #116423 - eltociear:patch-22, r=flip1995 Fix typo in attrs.rs documenation -> documentation commit fdb136a83f32555c76911e9c77f62ad21cbfadd3 Merge: 4dfa5e5dec5 13e58755d7c Author: Matthias Krüger Date: Fri Oct 6 21:17:48 2023 +0200 Rollup merge of #116297 - RalfJung:hooks, r=oli-obk add some docs to hooks/mod.rs r? `@oli-obk` commit 4dfa5e5dec58f7c510b6e3722fa74b244d4ba887 Merge: 31be8cc4114 1651f1f4b8f Author: Matthias Krüger Date: Fri Oct 6 21:17:48 2023 +0200 Rollup merge of #114564 - scottmcm:when-to-from, r=dtolnay Attempt to describe the intent behind the `From` trait further Inspired by the thread. `@rustbot` label +T-libs-api commit 94bc9c737ea97d56f9b4076553ac37c05c1e3931 Merge: 31be8cc4114 4483ac2206d Author: bors Date: Fri Oct 6 18:44:32 2023 +0000 Auto merge of #114811 - estebank:impl-ambiguity, r=wesleywiser Show more information when multiple `impl`s apply - When there are `impl`s without type params, show only those (to avoid showing overly generic `impl`s). ``` error[E0283]: type annotations needed --> $DIR/multiple-impl-apply.rs:34:9 | LL | let y = x.into(); | ^ ---- type must be known at this point | note: multiple `impl`s satisfying `_: From` found --> $DIR/multiple-impl-apply.rs:14:1 | LL | impl From for Bar { | ^^^^^^^^^^^^^^^^^^^^^^ ... LL | impl From for Foo { | ^^^^^^^^^^^^^^^^^^^^^^ = note: required for `Baz` to implement `Into<_>` help: consider giving `y` an explicit type | LL | let y: /* Type */ = x.into(); | ++++++++++++ ``` - Lower the importance of `T: Sized`, `T: WellFormed` and coercion errors, to prioritize more relevant errors. The pre-existing deduplication logic deals with hiding redundant errors better that way, and we show errors with more metadata that is useful to the user. - Show `::assoc_fn` suggestion in more cases. ``` error[E0790]: cannot call associated function on trait without specifying the corresponding `impl` type --> $DIR/cross-return-site-inference.rs:38:16 | LL | return Err(From::from("foo")); | ^^^^^^^^^^ cannot call associated function of trait | help: use a fully-qualified path to a specific available implementation | LL | return Err(::from("foo")); | +++++++++++++++++++ + ``` Fix #88284. commit 3706e6f61a95225ce6cf3dca4c3d0b86545d9090 Author: ShE3py <52315535+she3py@users.noreply.github.com> Date: Fri Oct 6 19:05:45 2023 +0200 Use `io_error_more` on WASI commit 31be8cc41148983e742fea8f559aacca0f6647db Merge: 64fa0c34d7c 6233d44815c Author: bors Date: Fri Oct 6 16:46:13 2023 +0000 Auto merge of #116489 - flip1995:clippyup, r=Manishearth Clippy subtree sync r? `@Manishearth` commit fa248cd9e6927dd6981078963aa47feb941a0d10 Author: Ralf Jung Date: Fri Oct 6 18:25:23 2023 +0200 add some comments explaining how the required_consts stuff fits together commit 3b08930677e5f9b5999caa2e5960df8def1b1e73 Merge: 375ff3e5ce5 100ea2b4999 Author: bors Date: Fri Oct 6 16:25:15 2023 +0000 Auto merge of #3112 - RalfJung:rustup, r=RalfJung Rustup preparing for rustc-push commit 100ea2b499955b2e0814719317c4092f95f988b1 Merge: ea56007362c 3706e6f61a9 Author: Ralf Jung Date: Fri Oct 6 18:15:20 2023 +0200 Merge from rustc commit ea56007362cf04da6d776a89fa45f536c537c448 Author: Ralf Jung Date: Fri Oct 6 18:15:12 2023 +0200 Preparing for merge from rustc commit 4483ac2206dd6ed1f80a9d1769a5635b1980d288 Author: Esteban Küber Date: Thu Oct 5 03:57:10 2023 +0000 Fix windows test that has different stderr output commit 6233d44815ce681062fca851a254f2a37db7916e Author: Philipp Krones Date: Fri Oct 6 17:47:56 2023 +0200 Update Cargo.lock commit b704697fba5a1621000fbfbd53231cfa0b388878 Author: Camille GILLOT Date: Tue Sep 26 21:13:31 2023 +0000 Bless incremental tests. commit 27d6a57e5821c8b7f5c8b049e36b856ed9440bfe Author: Camille GILLOT Date: Thu Jan 12 20:04:42 2023 +0000 Preserve DebugInfo in DeadStoreElimination. commit 375ff3e5ce54156db1443dca021e72a6ff8ec75c Merge: 3c511bb4178 e1e880e9c6a Author: bors Date: Fri Oct 6 15:44:37 2023 +0000 Auto merge of #3110 - eduardosm:rounding-without-host-floats, r=RalfJung Do not use host floats in `simd_{ceil,floor,round,trunc}` commit 3c8c3ad6dfa95afcf4e70ccd692f976fc238e24c Merge: 1bc0463b183 b105fb4c39b Author: Philipp Krones Date: Fri Oct 6 17:35:45 2023 +0200 Merge commit 'b105fb4c39bc1a010807a6c076193cef8d93c109' into clippyup commit b105fb4c39bc1a010807a6c076193cef8d93c109 Merge: 7217c0f3ac1 b8677e54d4e Author: bors Date: Fri Oct 6 15:34:34 2023 +0000 Auto merge of #11629 - flip1995:rustup, r=flip1995 Rustup r? `@ghost` changelog: none commit b8677e54d4eb2181f539864d3594a0dd62f2f0d9 Author: Philipp Krones Date: Fri Oct 6 17:32:44 2023 +0200 Bump Clippy version -> 0.1.75 commit 50754da9fa2f956eed5af672ed3c7820d774ce91 Author: Philipp Krones Date: Fri Oct 6 17:32:32 2023 +0200 Bump nightly version -> 2023-10-06 commit 82c3064c47599978b4cbc11330a6c593219125ec Merge: c5c6d703de7 7217c0f3ac1 Author: Philipp Krones Date: Fri Oct 6 17:27:17 2023 +0200 Merge remote-tracking branch 'upstream/master' into rustup commit 7217c0f3ac15a20dd1cc1d5bc02f084f40db8029 Merge: 279127ce2e5 48d2770e527 Author: bors Date: Fri Oct 6 15:06:00 2023 +0000 Auto merge of #11628 - koka831:fix/11625, r=blyxyas Improve `redundant_locals` help message Fixes #11625 AFAIK, `span_lint_and_help` points the beginning of spans when we pass multiple spans to the second argument, so This PR I also modified its help span and its message. lint result of the given example in the issue will be: ```console error: redundant redefinition of a binding `apple` --> src/main.rs:5:5 | 5 | let apple = apple; | ^^^^^^^^^^^^^^^^^^ | help: `apple` is initially defined here --> src/main.rs:4:9 | 4 | let apple = 42; | ^^^^^ = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_locals ``` I hope that this change might help reduce user confusion, but I'd appreciate alternative suggestions:) changelog: [`redundant_locals`]: Now points at the rebinding of the variable commit 3c511bb41780f50cf7eef5a5e1e8a8804ae13ab9 Merge: 4587c7c1c04 bf1356efc3d Author: bors Date: Fri Oct 6 14:58:31 2023 +0000 Auto merge of #3067 - Vanille-N:spurious-incremental, r=RalfJung Continuation of #3054: enable spurious reads in TB The last additions to the test suite of TB left some unresolved `#[should_panic]` that these new modifications solve. ## Problem Recall that the issues were arising from the interleavings that follow. ### A. `Reserved -> Frozen` has visible effects after function exit The transition `Reserved -> Frozen` irreversibly blocks write accesses to the tag, so in the interleaving below `y` initially `Reserved` becomes `Frozen` only in the target where a spurious read through `x` is inserted. This makes the later write through `y` UB only in the target and not in the source. ``` 1: retag x (&, protect) 2: retag y (&mut, protect) 1: spurious read x 1: ret x 2: ret y 2: write y ``` ### B. Protectors only announce their presence on retag There is a read-on-reborrow for protected locations, but if the retag of `x` occurs before that of `y` and there is no explicit access through `x`, then `y` is unaware of the existence of `x`. This is problematic because a spurious read inserted through `x` between the retag of `y` and the return of the function protecting `x` is a noalias violation in the target without UB in the source. ``` 1: retag x (&, protect) 2: retag y (&mut, protect) 1: spurious read x 1: ret x 2: write y 2: ret y ``` ## Step 1: Finer behavior for `Reserved` Since one problem is that `Reserved -> Frozen` has consequences beyond function exit, we decide to remove this transition entirely. To replace it we introduce a new subtype of `Reserved` with the extra boolean `aliased` set. `Reserved { aliased: true }` forbids child accesses, but only temporarily: it has no effect on activation once the tag is no longer protected. This makes the semantics of Tree Borrows slightly weaker in favor of being more similar to noalias. This solves interleaving **A.**, but **B.** is still a problem and the exhaustive tests do not pass yet. ## Step 2: Read on function exit Protected tags issue a "reminder" that they are protected until this instant inclusive, in the form of an implicit read (symmetrically to the implicit read on retag). This ensures that if the periods on which two tags `x` and `y` are protected overlap then no matter the interleaving of retags and returns, there is either a protector currently active or a read that has been emitted, both of which temporarily block activation. This makes the exhaustive test designed previously pass, but it has an effect on the ability to return an activated pointer that I had not foreseen before implementing it. ## Step 2': Do not propagate to children A naive implementation of **Step 2** makes the following code UB: ```rs fn reborrow(x: &mut u8) -> &mut u8 { let y = &mut *x; *y = *y; y // callee returns `y: Active`... } let x = &mut 0u8; let y = reborrow(x); // ... and caller receives `y: Frozen` *y = 1; // UB ``` This is unacceptable, and a simple fix is to make this implicit read visible only to foreign tags. We still lack hindsight on the ramifications of this decision, and the fact that the problematic pattern was only discovered because it occured in one completely unrelated test (with a cryptic error message) is worrying. We should be vigilant as to how this interacts with the rest of the model. ## TODO As of commit #281c30, the data race model has not been fully updated. We have removed the reborrow of mutable references counting as a write access, but we still need the implicit read of function exit to count as a read. commit 64fa0c34d7cb1a2d522414ab2c87024e465bd613 Merge: 1bc0463b183 8a1be9942d6 Author: bors Date: Fri Oct 6 14:57:09 2023 +0000 Auto merge of #115304 - Enselic:trailing-gt, r=cjgillot Allow file names to end with '>' The [`rustc_span::FileName`](https://doc.rust-lang.org/stable/nightly-rustc/rustc_span/enum.FileName.html) enum already differentiates between real files and "fake" files such as ``. We do not need to artificially forbid real file names from ending in `>`. Closes #73419 commit 279127ce2e5db187501e24631b49d635bae04865 Merge: 9554e477c29 dcc400191e4 Author: bors Date: Fri Oct 6 14:19:45 2023 +0000 Auto merge of #11611 - Alexendoo:items-after-test-module-check-crate, r=blyxyas Fix `items_after_test_module` for non root modules, add applicable suggestion Fixes #11050 Fixes #11153 changelog: [`items_after_test_module`]: Now suggests a machine-applicable suggestion. changelog: [`items:after_test_module`]: Also lints for non root modules commit 3cac3de200a99ed29583ce95705696e4b4782c76 Author: Tamir Duberstein Date: Fri Oct 6 08:35:45 2023 -0400 rustc_metadata: use try_canonicalize This is simpler and avoids unnecessary calls to `env::current_dir`. rustc_plugin is left unchanged to avoid conflicts with #116412. Updates #116426. commit 5aeb6a326f2fa941061b60c9286665847fe0401e Author: Tamir Duberstein Date: Fri Oct 6 08:32:00 2023 -0400 rustc_codegen_ssa: use try_canonicalize in rpath This is simpler and avoids unnecessary calls to `env::current_dir`. commit 48d2770e527dd21fd8ae71178d360abd005b6ddc Author: koka Date: Fri Oct 6 22:18:11 2023 +0900 Improve `redundant_locals` help message commit e1e880e9c6a8c756195720a51c0c0b5b1819d959 Author: Eduardo Sánchez Muñoz Date: Fri Oct 6 15:12:36 2023 +0200 Do not use host floats in `simd_{ceil,floor,round,trunc}` commit 1bc0463b183392ad4e0ae9c5f7a76630d487230d Merge: 6683f13fa1b 5674092e76f Author: bors Date: Fri Oct 6 13:07:15 2023 +0000 Auto merge of #116483 - GuillaumeGomez:rollup-z65pno1, r=GuillaumeGomez Rollup of 6 pull requests Successful merges: - #115454 (Clarify example in docs of str::char_slice) - #115522 (Clarify ManuallyDrop bit validity) - #115588 (Fix a comment in std::iter::successors) - #116198 (Add more diagnostic items for clippy) - #116329 (update some comments around swap()) - #116475 (rustdoc-search: fix bug with multi-item impl trait) r? `@ghost` `@rustbot` modify labels: rollup commit a081007265044a7baa0f23c286b6380be35c8bb0 Author: Tamir Duberstein Date: Fri Oct 6 08:22:35 2023 -0400 rustc_driver: avoid fallible conversions Use `std::path::PathBuf` rather than `String`; use `std::env::var_os` rather than `std::env::var`. These changes avoid a number of error paths which can arise in the presence of non-UTF-8 paths. commit 2753052adf3b21f7af1218b6a325484a5481658e Author: Tamir Duberstein Date: Fri Oct 6 08:51:30 2023 -0400 compiler: always use var_os("RUST_BACKTRACE") There are 3 instances of var(...) and 3 instances of var_os(...); the latter avoids an appearance of unhandled error, so use it everywhere. commit 7654d4b39833bc6fc0b0bcd184a616ff6ac7d9bd Author: Tamir Duberstein Date: Fri Oct 6 08:51:30 2023 -0400 compiler: always use var_os("RUST_BACKTRACE") There are 3 instances of var(...) and 3 instances of var_os(...); the latter avoids an appearance of unhandled error, so use it everywhere. commit dcc400191e444c8a57869f5004fdcbab807f7f09 Author: Alex Macleod Date: Wed Oct 4 20:24:16 2023 +0000 Fix `items_after_test_module` for non root modules, add applicable suggestion commit bf1356efc3d3d2c6b5c3fb3157d234f7a0901bc8 Author: Neven Villani Date: Wed Sep 20 14:27:20 2023 +0200 Fix problems of Reserved -> Frozen Reserved loses permissions too quickly. Adding more fine-grained behavior of Reserved lets it lose write permissions only temporarily. Protected tags receive a read access on initialized locations. commit 5048f813130f5c50fb95b784ad14ff40477c500b Author: Emanuele Vannacci Date: Fri Oct 6 12:04:28 2023 +0000 fix to register analysis pass from llvm plugin commit c95015c2955e8507f93a1106fa3f7eaafc25308b Author: Peter Hall Date: Fri Oct 6 12:20:39 2023 +0100 Minor doc clarification in Once::call_once commit 5674092e76f3736239910c892bf459ac686f47d1 Merge: 9e28a9349ce 1eb2a766417 Author: Guillaume Gomez Date: Fri Oct 6 13:18:35 2023 +0200 Rollup merge of #116475 - notriddle:notriddle/impl-trait-null, r=GuillaumeGomez rustdoc-search: fix bug with multi-item impl trait Preview searches: - https://notriddle.com/rustdoc-html-demo-5/compiler-doc-impl-trait-bugfix/index.html?search=-%3E%20globalctxt - https://notriddle.com/rustdoc-html-demo-5/compiler-doc-impl-trait-bugfix/index.html?search=globalctxt commit 9e28a9349ce31ce0a246c4f76ae44c6efbf53545 Merge: 3785fed021d bfc0f23acb4 Author: Guillaume Gomez Date: Fri Oct 6 13:18:35 2023 +0200 Rollup merge of #116329 - RalfJung:swap-comments, r=scottmcm update some comments around swap() Based on ``@eddyb's`` comment [here](https://github.com/rust-lang/unsafe-code-guidelines/issues/461#issuecomment-1742156410). And then I noticed the wrong capitalization for Miri and fixed it in some other places as well. commit 3785fed021dd834ebe40812c0e0f896cbcc5dce5 Merge: 382701e6b6c d464b72970f Author: Guillaume Gomez Date: Fri Oct 6 13:18:34 2023 +0200 Rollup merge of #116198 - Jarcho:diag_items, r=WaffleLapkin Add more diagnostic items for clippy commit 382701e6b6c4b65b5f4a00d6092cf8cef91f1181 Merge: 525c661842b 71429f5fd23 Author: Guillaume Gomez Date: Fri Oct 6 13:18:34 2023 +0200 Rollup merge of #115588 - tifv:fix-comment-successors, r=scottmcm Fix a comment in std::iter::successors The `unfold` function have since #58062 been renamed to `from_fn`. (I'm not sure if this whole comment is still useful—it's not like there are many iterators that *can't* be based on `from_fn`. Anyway, in its current form this comment is not correct, and it sent me into a half-hour research of what happened to `unfold` function, so I want to do *something* with it :upside_down_face: deleting these three lines is a perfectly fine alternative, in my opinion.) commit 525c661842b5fd6be5b191a4f6baa2c79d722e36 Merge: 4e818f6b723 a16622f62f1 Author: Guillaume Gomez Date: Fri Oct 6 13:18:33 2023 +0200 Rollup merge of #115522 - joshlf:patch-8, r=scottmcm Clarify ManuallyDrop bit validity Clarify that `ManuallyDrop` has the same bit validity as `T`. commit 4e818f6b72398ff1693b7372b24af0e24a1bc07e Merge: d4ba2b4c7c9 dfdab8fc629 Author: Guillaume Gomez Date: Fri Oct 6 13:18:33 2023 +0200 Rollup merge of #115454 - vwkd:patch-1, r=scottmcm Clarify example in docs of str::char_slice Just a one word improvement. “Last” can be misread as meaning the last (third) instead of the previous (first). commit 6683f13fa1ba91ab84dd5bc5bc21965a1b0530e1 Merge: d4ba2b4c7c9 9baab45e2f2 Author: bors Date: Fri Oct 6 11:12:13 2023 +0000 Auto merge of #111595 - fortanix:raoul/waitqueue_clarifications, r=workingjubilee `waitqueue` clarifications for SGX platform The documentation of `waitqueue` functions on the `x86_64-fortanix-unknown-sgx` platform is incorrect at some places and on others missing. This PR improves upon this. cc: `@jethrogb` commit ecf271cfb6224fae07a2b096bfbae22c6112b011 Author: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Fri Oct 6 11:02:11 2023 +0000 Use pushsection/popsection commit 4587c7c1c044652a89104b8dccfd8e025aea177f Merge: 413540837b9 03a03e2ef66 Author: bors Date: Fri Oct 6 09:11:14 2023 +0000 Auto merge of #3109 - RalfJung:dlsym, r=RalfJung add a direct dlsym test commit 03a03e2ef66f80548681b8dbbf387b55e7b8a3cb Author: Ralf Jung Date: Fri Oct 6 11:06:16 2023 +0200 add a direct dlsym test commit 5432d13bb04cecf213c2753b25cfb1e366cb8026 Author: Scott McMurray Date: Fri Oct 6 01:41:48 2023 -0700 Reuse existing `Some`s in `Option::(x)or` LLVM still has trouble re-using discriminants sometimes when rebuilding a two-variant enum, so when we have the correct variant already built, just use it. That's simpler in LLVM *and* in MIR, so might as well: commit d4ba2b4c7c938cf90c03a265cb31356537f608ad Merge: ff057893b8a e300847864f Author: bors Date: Fri Oct 6 08:04:53 2023 +0000 Auto merge of #116018 - DianQK:simd-wide-sum-test, r=scottmcm Increasing the SIMD size improves the vectorization possibilities Change the `simd-wide-sum.rs` to pass tests based on the LLVM main branch. For smaller lengths, we cannot expect to always get vectorized. A related discussion at https://rust-lang.zulipchat.com/#narrow/stream/187780-t-compiler.2Fwg-llvm/topic/LLVM.20HEAD.3A.20codegen.2Fsimd.2Fsimd-wide-sum.2Ers.20newly.20failing. r? scottmcm commit 413540837b904e7cdf5d2b5ff137867268868095 Merge: f9003c08ab2 16cde069fc7 Author: bors Date: Fri Oct 6 07:40:47 2023 +0000 Auto merge of #3108 - RalfJung:dlsym, r=RalfJung refactor dlsym: dispatch symbols via the normal shim mechanism This avoids having to adjust Miri when switching between invoking the function via a linked symbol vs via dlsym. commit 16cde069fc7e727dca3c6d8ec5077f0d2f6f928b Author: Ralf Jung Date: Fri Oct 6 09:38:50 2023 +0200 allow dyn_sym in the files where they are defined; remove unreachable android code commit 099311ba5a15162d73afe9ebe62bdc463ebd76c0 Author: Ralf Jung Date: Fri Oct 6 09:20:51 2023 +0200 make some things on foreign_items private commit bc8d4dfa95ae10c3f7229c01710a9e8f838baaec Author: Ralf Jung Date: Fri Oct 6 09:15:48 2023 +0200 refactor dlsym: dispatch symbols via the normal shim mechanism commit e300847864faf93538354b418da0a1612efd36f4 Author: scottmcm Date: Fri Oct 6 07:05:09 2023 +0000 Add a wishlist FIXME commit 1651f1f4b8f97a51f1699101cfe03ea129ec7a07 Author: Scott McMurray Date: Thu Oct 5 23:03:02 2023 -0700 Elaborate some caveats to lossless commit f9003c08ab2e5d331ebd9285cc3a205d0b4c956c Merge: 1a6ab015d00 dff7d5aa2f0 Author: bors Date: Fri Oct 6 05:52:07 2023 +0000 Auto merge of #3098 - BlackHoleFox:apple-entropy, r=RalfJung Support getentropy on macOS as a foreign item Prior this was always assumed to be accessed via `dlsym` shim, but in `std` I'm attempting to start [unconditionally linking](https://github.com/rust-lang/rust/pull/116319) to `getentropy` on macOS now that Rust's platform version support allows it. This just moves the main logic of the previous `dlsym` handler into an eval context extension so it can be used via both call paths. The `dlsym` handler is still needed as `getrandom` uses it. commit dff7d5aa2f041f833901318ab8d301aeeb8ef06c Author: BlackHoleFox Date: Sun Oct 1 12:19:41 2023 -0500 Move getentropy handling to a shared location for foreign item implementation commit ff057893b8a2f20de2ff258ed8690f5a42fed78a Merge: fd80c02c168 b29777a1862 Author: bors Date: Fri Oct 6 05:34:36 2023 +0000 Auto merge of #116472 - matthiaskrgr:rollup-1mz0qrp, r=matthiaskrgr Rollup of 2 pull requests Successful merges: - #116421 (Clarify `invalid_reference_casting` lint around interior mutable types) - #116469 (Fix typo in README.md) r? `@ghost` `@rustbot` modify labels: rollup commit 1eb2a766417c755f6787358bfc36385a26c4ed31 Author: Michael Howell Date: Thu Oct 5 22:32:37 2023 -0700 rustdoc-search: fix bug with multi-item impl trait commit 44f92c1f805434866b9744a6c8953ecdd8cc36f9 Author: scottmcm Date: Fri Oct 6 05:31:54 2023 +0000 Don't mention "recover the original" in `From` docs Co-authored-by: Josh Triplett commit b80e653ca1278a2c4fa411b938be1ccc7ed204fb Author: Scott McMurray Date: Sun Aug 6 14:54:55 2023 -0700 Attempt to describe the intent behind the `From` trait further commit b29777a18627464864611cb595677f21623e1be8 Merge: 7d7004d3e64 6ff3c3a421c Author: Matthias Krüger Date: Fri Oct 6 06:23:48 2023 +0200 Rollup merge of #116469 - prakashAditya639:master, r=workingjubilee Fix typo in README.md the word "programatically" should be corrected to "programmatically." commit 7d7004d3e64c27cdc71b06c177506edc11040410 Merge: 579be69de9f e46236cceb0 Author: Matthias Krüger Date: Fri Oct 6 06:23:48 2023 +0200 Rollup merge of #116421 - Urgau:inter-mut-invalid_ref_casting, r=oli-obk Clarify `invalid_reference_casting` lint around interior mutable types This is PR intends to clarify the `invalid_reference_casting` lint around interior mutable types by adding a note for them saying that they should go through `UnsafeCell::get`. So for this code: ```rust let cell = &std::cell::UnsafeCell::new(0); let _num = &mut *(cell as *const _ as *mut i32); ``` the following note will be added to the lint output: ```diff error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell` --> $DIR/reference_casting.rs:68:16 | LL | let _num = &mut *(cell as *const _ as *mut i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: for more information, visit + = note: even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get` ``` Suggestion are welcome around the note contents. Fixes https://github.com/rust-lang/rust/issues/116410 cc `@RalfJung` commit e7dabc9f877d76e0a3432100d83b14b97978533d Author: Nicholas Nethercote Date: Fri Oct 6 14:59:11 2023 +1100 Remove unnecessary `pub`. commit 093b435b786dfd816aba790f0097943258a1b366 Author: Nicholas Nethercote Date: Fri Oct 6 14:58:01 2023 +1100 Remove unneeded features. commit 4b51a3eb52c5ae292ba54c2044be695630fccc3e Author: Nicholas Nethercote Date: Fri Oct 6 14:57:25 2023 +1100 Remove unneeded dependency. Also sort them. commit e49a1470baee89823a49aa6ec7baa19aa033b88b Author: Nicholas Nethercote Date: Wed Oct 4 18:27:18 2023 +1100 Factor out `insert_or_error`. It appears identically as a closure in two functions. Also change its return type from `bool` to `Option<()>` so it can be used with `?`. commit 108e541cc2d73fc4548847a2cfddca5c3b3499e6 Author: Nicholas Nethercote Date: Wed Oct 4 15:37:44 2023 +1100 Remove unused `FileName::CfgSpec`. commit 442a66d385bc2cdaf53b042437b9997d7b163d6d Author: Nicholas Nethercote Date: Tue Oct 3 17:03:58 2023 +1100 Remove unneeded dependency. commit fd80c02c168c2…

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run-pass/trait-composition-trivial doesn't work with check-fast #3108

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