Move subtyper below reveal_all and change reveal_all #116415

ouz-a · 2023-10-04T10:04:34Z

In previous attempt #116378 we tried to handle Opaque in few different places, but this isn't necessary, after moving subtyper below reveal_all and calling super_place on reveal_all, issues cease to exist.

r? @oli-obk

Fixes #116332
Fixes #116265
Fixes #116383
Fixes #116333

rustbot · 2023-10-04T10:04:44Z

Some changes occurred to MIR optimizations

cc @rust-lang/wg-mir-opt

oli-obk · 2023-10-04T10:58:02Z

@bors r+

bors · 2023-10-04T10:58:05Z

📌 Commit 8bc1355 has been approved by oli-obk

It is now in the queue for this repository.

compiler/rustc_mir_transform/src/reveal_all.rs

lqd · 2023-10-04T11:18:34Z

Were you able to try this on the repository in #116333 by any chance?

compiler/rustc_mir_transform/src/add_subtyping_projections.rs

compiler/rustc_mir_transform/src/lib.rs

ouz-a · 2023-10-04T11:34:42Z

Were you able to try this on the repository in #116333 by any chance?

Yes and no, I tried minimal example provided in the issue and it's same as the issues we have already tests with. So yes this fixes that issue as well

bors · 2023-10-05T12:45:19Z

☔ The latest upstream changes (presumably #116427) made this pull request unmergeable. Please resolve the merge conflicts.

lqd · 2023-10-05T14:51:58Z

Since it fixes #116333 can we also add the minimization as a test?

It seems this PR also fixes #116382, and that issue also has a minimization.

ouz-a · 2023-10-05T15:57:32Z

Since it fixes #116333 can we also add the minimization as a test?

It seems this PR also fixes #116382, and that issue also has a minimization.

Done, added them on last commit.

oli-obk · 2023-10-05T16:02:13Z

@bors r+

bors · 2023-10-05T16:02:15Z

📌 Commit 3088c4b has been approved by oli-obk

It is now in the queue for this repository.

Move subtyper below reveal_all and change reveal_all In previous attempt rust-lang#116378 we tried to handle `Opaque` in few different places, but this isn't necessary, after moving subtyper below reveal_all and calling `super_place` on reveal_all, issues cease to exist. r? `@oli-obk` Fixes rust-lang#116332 Fixes rust-lang#116265 Fixes rust-lang#116383 Fixes rust-lang#116333

…iaskrgr Rollup of 5 pull requests Successful merges: - rust-lang#116220 (stabilize `Option::as_`(`mut_`)`slice`) - rust-lang#116288 (Add Span to various smir types) - rust-lang#116415 (Move subtyper below reveal_all and change reveal_all) - rust-lang#116428 (Add a note to duplicate diagnostics) - rust-lang#116452 (Do not assert that hidden types don't have erased regions.) r? `@ghost` `@rustbot` modify labels: rollup

Rollup merge of rust-lang#116415 - ouz-a:move_subtyper, r=oli-obk Move subtyper below reveal_all and change reveal_all In previous attempt rust-lang#116378 we tried to handle `Opaque` in few different places, but this isn't necessary, after moving subtyper below reveal_all and calling `super_place` on reveal_all, issues cease to exist. r? ``@oli-obk`` Fixes rust-lang#116332 Fixes rust-lang#116265 Fixes rust-lang#116383 Fixes rust-lang#116333

lqd · 2023-11-16T21:01:47Z

#115759 is now on stable, and this PR fixed its unintended regressions. However, we missed its beta backport back then.

Some of the fixed regressions that were not using unstable code, like #116333, were not tracked as beta regressions either, and are now stable regressions, like #117976.

So let's nominate this PR for a stable backport.

lqd · 2023-11-22T10:55:25Z

As discussed in https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/Week.2047.3A.20stable.20.2B.20beta.20backports this looks safe enough for a backport. The fix looks good and no issues have been opened about it. This PR fixes ICEs encountered in popular projects but not widely throughout the ecosystem as of this writing, and while not critical they are annoying.

@rustbot label +stable-accepted

Mark-Simulacrum · 2023-12-04T14:56:15Z

This PR does not appear to backport cleanly onto the stable branch -- the compiler/rustc_mir_transform/src/add_subtyping_projections.rs file seems to not be present on stable?

It looks like we'd need to backport #115025 as well, which I believe makes the merge mostly clean (running some tests now).

…Simulacrum [stable] 1.74.1 release This includes backports of: * Dispose llvm::TargetMachines prior to llvm::Context being disposed rust-lang#118464 * clarify fn discriminant guarantees: only free lifetimes may get erased rust-lang#118006 * Move subtyper below reveal_all and change reveal_all rust-lang#116415 * Make subtyping explicit in MIR rust-lang#115025 (needed for above) As well as infrastructure fix: * Don't ask for a specific branch in cargotest rust-lang#118597 r? `@Mark-Simulacrum`

pkgsrc changes: * remove NetBSD-8 support (embedded LLVM requires newer C++ than what is in -8; it's conceivable that this could still build with an external LLVM) * undo powerpc 9.0 file naming tweak Upstream changes: Version 1.74.1 (2023-12-07) =========================== - [Resolved spurious STATUS_ACCESS_VIOLATIONs in LLVM] (rust-lang/rust#118464) - [Clarify guarantees for std::mem::discriminant] (rust-lang/rust#118006) - [Fix some subtyping-related regressions] (rust-lang/rust#116415)

Pkgsrc changes: * Remove NetBSD-8 support (embedded LLVm requires newer C++ than what is in -8; it's conceivable that this could still build with an external LLVM) * undo powerpc 9.0 file naming tweak, since we no longer support -8. * Remove patch to LLVM for powerpc now included by upstream. * Minor adjustments, checksum changes etc. Upstream changes: Version 1.74.1 (2023-12-07) =========================== - [Resolved spurious STATUS_ACCESS_VIOLATIONs in LLVM] (rust-lang/rust#118464) - [Clarify guarantees for std::mem::discriminant] (rust-lang/rust#118006) - [Fix some subtyping-related regressions] (rust-lang/rust#116415) Version 1.74.0 (2023-11-16) ========================== Language -------- - [Codify that `std::mem::Discriminant<T>` does not depend on any lifetimes in T] (rust-lang/rust#104299) - [Replace `private_in_public` lint with `private_interfaces` and `private_bounds` per RFC 2145] (rust-lang/rust#113126) Read more in [RFC 2145](https://rust-lang.github.io/rfcs/2145-type-privacy.html). - [Allow explicit `#[repr(Rust)]`] (rust-lang/rust#114201) - [closure field capturing: don't depend on alignment of packed fields] (rust-lang/rust#115315) - [Enable MIR-based drop-tracking for `async` blocks] (rust-lang/rust#107421) Compiler -------- - [stabilize combining +bundle and +whole-archive link modifiers] (rust-lang/rust#113301) - [Stabilize `PATH` option for `--print KIND=PATH`] (rust-lang/rust#114183) - [Enable ASAN/LSAN/TSAN for `*-apple-ios-macabi`] (rust-lang/rust#115644) - [Promote loongarch64-unknown-none* to Tier 2] (rust-lang/rust#115368) - [Add `i686-pc-windows-gnullvm` as a tier 3 target] (rust-lang/rust#115687) Libraries --------- - [Implement `From<OwnedFd/Handle>` for ChildStdin/out/err] (rust-lang/rust#98704) - [Implement `From<{&,&mut} [T; N]>` for `Vec<T>` where `T: Clone`] (rust-lang/rust#111278) - [impl Step for IP addresses] (rust-lang/rust#113748) - [Implement `From<[T; N]>` for `Rc<[T]>` and `Arc<[T]>`] (rust-lang/rust#114041) - [`impl TryFrom<char> for u16`] (rust-lang/rust#114065) - [Stabilize `io_error_other` feature] (rust-lang/rust#115453) - [Stabilize the `Saturating` type] (rust-lang/rust#115477) - [Stabilize const_transmute_copy] (rust-lang/rust#115520) Stabilized APIs --------------- - [`core::num::Saturating`] (https://doc.rust-lang.org/stable/std/num/struct.Saturating.html) - [`impl From<io::Stdout> for std::process::Stdio`] (https://doc.rust-lang.org/stable/std/process/struct.Stdio.html#impl-From%3CStdout%3E-for-Stdio) - [`impl From<io::Stderr> for std::process::Stdio`] (https://doc.rust-lang.org/stable/std/process/struct.Stdio.html#impl-From%3CStderr%3E-for-Stdio) - [`impl From<OwnedHandle> for std::process::Child{Stdin, Stdout, Stderr}`] (https://doc.rust-lang.org/stable/std/process/struct.Stdio.html#impl-From%3CStderr%3E-for-Stdio) - [`impl From<OwnedFd> for std::process::Child{Stdin, Stdout, Stderr}`] (https://doc.rust-lang.org/stable/std/process/struct.Stdio.html#impl-From%3CStderr%3E-for-Stdio) - [`std::ffi::OsString::from_encoded_bytes_unchecked`] (https://doc.rust-lang.org/stable/std/ffi/struct.OsString.html#method.from_encoded_bytes_unchecked) - [`std::ffi::OsString::into_encoded_bytes`] (https://doc.rust-lang.org/stable/std/ffi/struct.OsString.html#method.into_encoded_bytes) - [`std::ffi::OsStr::from_encoded_bytes_unchecked`] (https://doc.rust-lang.org/stable/std/ffi/struct.OsStr.html#method.from_encoded_bytes_unchecked) - [`std::ffi::OsStr::as_encoded_bytes`] (https://doc.rust-lang.org/stable/std/ffi/struct.OsStr.html#method.as_encoded_bytes) - [`std::io::Error::other`] (https://doc.rust-lang.org/stable/std/io/struct.Error.html#method.other) - [`impl TryFrom<char> for u16`] (https://doc.rust-lang.org/stable/std/primitive.u16.html#impl-TryFrom%3Cchar%3E-for-u16) - [`impl<T: Clone, const N: usize> From<&[T; N]> for Vec<T>`] (https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#impl-From%3C%26%5BT;+N%5D%3E-for-Vec%3CT,+Global%3E) - [`impl<T: Clone, const N: usize> From<&mut [T; N]> for Vec<T>`] (https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#impl-From%3C%26mut+%5BT;+N%5D%3E-for-Vec%3CT,+Global%3E) - [`impl<T, const N: usize> From<[T; N]> for Arc<[T]>`] (https://doc.rust-lang.org/stable/std/sync/struct.Arc.html#impl-From%3C%5BT;+N%5D%3E-for-Arc%3C%5BT%5D,+Global%3E) - [`impl<T, const N: usize> From<[T; N]> for Rc<[T]>`] (https://doc.rust-lang.org/stable/std/rc/struct.Rc.html#impl-From%3C%5BT;+N%5D%3E-for-Rc%3C%5BT%5D,+Global%3E) These APIs are now stable in const contexts: - [`core::mem::transmute_copy`] (https://doc.rust-lang.org/beta/std/mem/fn.transmute_copy.html) - [`str::is_ascii`] (https://doc.rust-lang.org/beta/std/primitive.str.html#method.is_ascii) - [`[u8]::is_ascii`] (https://doc.rust-lang.org/beta/std/primitive.slice.html#method.is_ascii) Cargo ----- - [fix: Set MSRV for internal packages] (rust-lang/cargo#12381) - [config: merge lists in precedence order] (rust-lang/cargo#12515) - [fix(update): Clarify meaning of --aggressive as --recursive] (rust-lang/cargo#12544) - [fix(update): Make `-p` more convenient by being positional] (rust-lang/cargo#12545) - [feat(help): Add styling to help output ] (rust-lang/cargo#12578) - [feat(pkgid): Allow incomplete versions when unambigious] (rust-lang/cargo#12614) - [feat: stabilize credential-process and registry-auth] (rust-lang/cargo#12649) - [feat(cli): Add '-n' to dry-run] (rust-lang/cargo#12660) - [Add support for `target.'cfg(..)'.linker`] (rust-lang/cargo#12535) - [Stabilize `--keep-going`] (rust-lang/cargo#12568) - [feat: Stabilize lints] (rust-lang/cargo#12648) Rustdoc ------- - [Add warning block support in rustdoc] (rust-lang/rust#106561) - [Accept additional user-defined syntax classes in fenced code blocks] (rust-lang/rust#110800) - [rustdoc-search: add support for type parameters] (rust-lang/rust#112725) - [rustdoc: show inner enum and struct in type definition for concrete type] (rust-lang/rust#114855) Compatibility Notes ------------------- - [Raise minimum supported Apple OS versions] (rust-lang/rust#104385) - [make Cell::swap panic if the Cells partially overlap] (rust-lang/rust#114795) - [Reject invalid crate names in `--extern`] (rust-lang/rust#116001) - [Don't resolve generic impls that may be shadowed by dyn built-in impls] (rust-lang/rust#114941) Internal Changes ---------------- These changes do not affect any public interfaces of Rust, but they represent significant improvements to the performance or internals of rustc and related tools. None this cycle.

Update Rust toolchain from nightly-2023-10-05 to nightly-2023-10-06 without any other source changes. This is an automatically generated pull request. If any of the CI checks fail, manual intervention is required. In such a case, review the changes at https://github.com/rust-lang/rust from rust-lang@2bbb619 up to rust-lang@cae0791. The log for this commit range is: rust-lang@cae0791da4 Auto merge of rust-lang#116417 - ouz-a:trait_type_detective, r=compiler-errors rust-lang@e30d27be00 remove is global hack rust-lang@cdca82c2c8 Auto merge of rust-lang#116455 - matthiaskrgr:rollup-p226a5u, r=matthiaskrgr rust-lang@76d0b794cb Rollup merge of rust-lang#116452 - cjgillot:noassert-erased, r=oli-obk rust-lang@c1c5ab717e Rollup merge of rust-lang#116428 - Alexendoo:note-duplicate-diagnostics, r=compiler-errors,estebank rust-lang@08cc7428d9 Rollup merge of rust-lang#116415 - ouz-a:move_subtyper, r=oli-obk rust-lang@b301bd4220 Rollup merge of rust-lang#116288 - ouz-a:smir_spans, r=spastorino rust-lang@864e5d8d94 Rollup merge of rust-lang#116220 - llogiq:stabilize-option-as-slice, r=BurntSushi rust-lang@3088c4b046 move subtyper change reveal_all rust-lang@14c846cb05 Do not assert that hidden types don't have erased regions. rust-lang@3bcad65fbf Auto merge of rust-lang#103046 - JanBeh:PR_clarify_cmp_terminology, r=workingjubilee rust-lang@cf9fd95b1c Auto merge of rust-lang#114042 - liushuyu:ubuntu/i586-fpmath, r=workingjubilee rust-lang@86b031b734 docs: Correct terminology in std::cmp rust-lang@90f3a6f920 Auto merge of rust-lang#104153 - tspiteri:doc-float-constants, r=workingjubilee rust-lang@5c3a0e932b Auto merge of rust-lang#116427 - cjgillot:no-internal, r=oli-obk rust-lang@a49138e46e impl stable for kinds rust-lang@a79567b01c add span to statements rust-lang@e293927016 Auto merge of rust-lang#116443 - workingjubilee:rollup-r9mh13f, r=workingjubilee rust-lang@4a14a80605 Rollup merge of rust-lang#116432 - notriddle:master, r=fmease rust-lang@d7b02c3d40 Rollup merge of rust-lang#116431 - estebank:issue-80476, r=compiler-errors rust-lang@a9a389cf44 Rollup merge of rust-lang#116429 - fmease:clean-up-struct-field-suggs, r=compiler-errors rust-lang@cfce3a919d Rollup merge of rust-lang#116296 - compiler-errors:default-return, r=estebank rust-lang@ea3454eabb Rollup merge of rust-lang#116223 - catandcoder:master, r=cjgillot rust-lang@5236c8e1fa Auto merge of rust-lang#116273 - compiler-errors:refine2, r=tmandry rust-lang@b781645332 Auto merge of rust-lang#116184 - compiler-errors:afit-lint, r=tmandry rust-lang@5453a9f34d Add a note to duplicate diagnostics rust-lang@afe67fa2ef Auto merge of rust-lang#116370 - nnethercote:more-arena-stuff, r=cjgillot rust-lang@2f5249019e Apply suggestions from code review rust-lang@dd5f26c42d Fix spans for comments in rustfmt rust-lang@1f079cfb44 Point to closure return instead of output if defaulted rust-lang@89b14ae212 Fix clippy rust-lang@137b6d0b01 Point to where missing return type should go rust-lang@a46ccd8d3f Add URL to test case issues rust-lang@9266270ef5 Rename issue-\d+.rs tests to have meaningful names rust-lang@041e54bd92 Tweak wording of E0562 rust-lang@867cc41b5b clean up struct field suggestions rust-lang@a198aff4a4 Add `crate_name` to test so that it can be renamed rust-lang@e63d19c4dd Remove mir::LocalDecl::internal. rust-lang@f44d116e1f Fix misuses of a vs an rust-lang@a2051dd578 Optimize some `alloc_from_iter` call sites. rust-lang@816383c60d Remove the `TypedArena::alloc_from_iter` specialization. rust-lang@c373d206cd Address review nits rust-lang@90dfa24415 Only reachable traits rust-lang@afea0b4eab Fill in prose to describe the `async_fn_in_trait` lint rust-lang@28d58f6524 Bless tests rust-lang@ec79720c1e Add async_fn_in_trait lint rust-lang@999a354a81 add span to terminator rust-lang@9130484db9 create localdecl and add span to it rust-lang@06d9602d33 Only trigger refine lint on reachable traits rust-lang@702da3b89c stabilize `Option::as_`(`mut_`)`slice` rust-lang@40a52cf55c core library: Disable fpmath tests for i386 ... rust-lang@c953b6c014 doc: expand description for f32 and f64 associated constants Co-authored-by: celinval <celinval@users.noreply.github.com>

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ouz-a changed the title ~~Move subtyper below reveal_all and Change reveal_all~~ Move subtyper below reveal_all and change reveal_all Oct 4, 2023

ouz-a mentioned this pull request Oct 4, 2023

Normalize opaque alias type #116378

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saethlin linked an issue Oct 5, 2023 that may be closed by this pull request

ICE when building regex-syntax with -Zvalidate-mir #116382

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move subtyper change reveal_all

3088c4b

ouz-a force-pushed the move_subtyper branch from e3c1139 to 3088c4b Compare October 5, 2023 15:56

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Rollup of 6 pull requests #116453

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Rollup of 5 pull requests #116455

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bors merged commit 08cc742 into rust-lang:master Oct 5, 2023
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Fix divergence from upstream master ferrocene/ferrocene#23

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1.74 causes an internal compiler error: broken MIR in Item #117976

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broken MIR in tantivy #118181

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rustc wanted features & bugfixes Rust-for-Linux/linux#355

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[stable] 1.74.1 release #118607

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Make subtyping explicit in MIR #115025

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Move subtyper below reveal_all and change reveal_all #116415

Move subtyper below reveal_all and change reveal_all #116415

ouz-a commented Oct 4, 2023 •

edited by wesleywiser

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Move subtyper below reveal_all and change reveal_all #116415

Move subtyper below reveal_all and change reveal_all #116415

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