Backport rust-lang/stdarch#1818 for 1.88 #142694

Amanieu · 2025-06-18T20:42:46Z

r? cuviper

[beta] Prepare 1.88.0 beta https://forge.rust-lang.org/release/process.html#beta-pr r? `@ghost`

…nglo [beta-1.88] Update cargo 1 commits in 7918c7eb59614c39f1c4e27e99d557720976bdd7..873a0649350c486caf67be772828a4f36bb4734c 2025-04-27 09:44:23 +0000 to 2025-05-10 06:10:32 -0500 - [beta-1.88] fix(rustc): Don't panic on unknown bins (rust-lang/cargo#15515) r? ghost

…cified T

…ietroalbini Backport rust-lang#140902 to beta This PR backports rust-lang#140902 to the beta branch, to unblock the stage0 bump. r? `@ghost`

(cherry picked from commit 577e82f)

(cherry picked from commit 448b7af)

Unfortunately, multiple people are reporting linker warnings related to `__rust_no_alloc_shim_is_unstable` after this change. The solution isn't quite clear yet, let's revert to green for now, and try a reland with a determined solution for `__rust_no_alloc_shim_is_unstable`. This reverts commit c8b7f32, reversing changes made to 667247d. (cherry picked from commit 734a5b1)

…ad disable problematic test (cherry picked from commit 6128fca)

(cherry picked from commit 66d47c1)

…ages At the moment, it seems like Windows Server 2025 20250504.1.0 is misconfigured causing insufficient disk space failures. Temporarily go back to Windows Server 2022 in the hope that those are not also misconfigured. (cherry picked from commit f4ce73e)

This is needed to make the cache work after moving CI from the `rust-lang-ci` org to `rust-lang`. (cherry picked from commit eb53032)

To make it easier to migrate off the `rust-lang-ci/rust` repository. (cherry picked from commit 7d32303)

(cherry picked from commit 806cd12)

This will be used to access secrets once we move off rust-lang-ci.

[beta] backports and stage0 bump - bump stage0 to 1.87.0 - Update the edition guide for let chains rust-lang#140852 - Fix download of GCC from CI on non-nightly channels rust-lang#140901 - Revert "Fix linking statics on Arm64EC rust-lang#140176" rust-lang#141024 - [win][arm64] Remove 'Arm64 Hazard' undocumented MSVC option and instead disable problematic test rust-lang#141045 - Do not call name() on rpitit assoc_item rust-lang#141308 - Temporarily use Windows Server 2022 instead of Windows Server 2025 images rust-lang#141023 - Use Docker cache from the current repository rust-lang#141280 - Move dist-x86_64-linux CI job to GitHub temporarily rust-lang#141388 - ci: prepare aws access keys for migration rust-lang#141389 - Add bors environment to CI rust-lang#141323 - ci: split dist-arm-linux job rust-lang#141078 r? cuviper

(cherry picked from commit c7a2694)

[beta] backports - Update to LLVM 20.1.5 rust-lang#141063 r? cuviper

(cherry picked from commit 321db85)

(cherry picked from commit f01bbfc)

If an attribute is re-emitted by a macro, the incorrect edition was used to emit warnings for unsafe attributes (cherry picked from commit 2c82574)

[beta] backports - x86 (32/64): go back to passing SIMD vectors by-ptr rust-lang#141309 - use correct edition when warning for unsafe attributes rust-lang#142261 r? cuviper

rustbot · 2025-06-18T20:42:52Z

⚠️ Warning ⚠️

Pull requests are usually filed against the master branch for this repo, but this one is against beta. Please double check that you specified the right target!
Some commits in this PR modify submodules.
There are issue links (such as #123) in the commit messages of the following commits.
Please move them to the PR description, to avoid spamming the issues with references to the commit, and so this bot can automatically canonicalize them to avoid issues with subtree.
- 0e928ca

cuviper · 2025-06-20T17:18:46Z

I've included this in #142791.

@rustbot label beta-accepted

Amanieu · 2025-06-20T17:21:32Z

It would be useful to have another crater run with this backport, just in case.

cuviper · 2025-06-20T17:45:00Z

Did it show up previously in crater? What do you expect to see (or not)?

Amanieu · 2025-06-20T18:06:48Z

There are actually 2 accidental stabilizations, done at separate times:

The vbsl intrinsics for f16 were accidentally stabilized in 1.88 (current beta).
The float16x{4,8}_t types were accidentally stabilized in 1.87 (current stable).

It is possible in theory that some people may be already using the float16xN_t types, although that is unlikely since all of the intrinsics that use this type are still unstable.

cuviper · 2025-06-20T18:11:19Z

OK, but crater is still only x86-64 Linux AFAIK, so these aarch64 changes wouldn't show up anyway, right?

[beta] backports - Make the assertion in `Ident::new` debug-only. #140880 - Avoid creating an empty identifer in `Symbol::to_ident_string`. #141318 - Backport rust-lang/stdarch#1818 for 1.88 #142694 - [beta] Clippy backport #142725 - ICE: - rust-lang/rust-clippy#14776 - Lint contradictions: - rust-lang/rust-clippy#14703 - rust-lang/rust-clippy#14810 - Smaller (in LoC changes) fixes: - rust-lang/rust-clippy#14733 - rust-lang/rust-clippy#14730 r? cuviper

[beta] backports - Make the assertion in `Ident::new` debug-only. #140880 - Avoid creating an empty identifer in `Symbol::to_ident_string`. #141318 - Backport rust-lang/stdarch#1818 for 1.88 #142694 - [beta] Clippy backport #142725 - ICE: - rust-lang/rust-clippy#14776 - Lint contradictions: - rust-lang/rust-clippy#14703 - rust-lang/rust-clippy#14810 - Smaller (in LoC changes) fixes: - rust-lang/rust-clippy#14733 - rust-lang/rust-clippy#14730 r? cuviper try-job: x86_64-msvc-ext2

[beta] backports - Make the assertion in `Ident::new` debug-only. #140880 - Avoid creating an empty identifer in `Symbol::to_ident_string`. #141318 - Backport rust-lang/stdarch#1818 for 1.88 #142694 - [beta] Clippy backport #142725 - ICE: - rust-lang/rust-clippy#14776 - Lint contradictions: - rust-lang/rust-clippy#14703 - rust-lang/rust-clippy#14810 - Smaller (in LoC changes) fixes: - rust-lang/rust-clippy#14733 - rust-lang/rust-clippy#14730 - [win][ci] Update LLVM toolchain used to build LLVM to 20 #140757 r? cuviper

Amanieu · 2025-06-21T04:46:23Z

OK, but crater is still only x86-64 Linux AFAIK, so these aarch64 changes wouldn't show up anyway, right?

Good point, I'd forgotten about that. Perhaps we could do an aarch64 check-only crater run?

Mark-Simulacrum · 2025-06-22T20:54:53Z

This was included in #142791, right? Kicked off a check run here - #141588 (comment)

bors · 2025-06-23T16:59:55Z

☔ The latest upstream changes (presumably #142901) made this pull request unmergeable. Please resolve the merge conflicts.

cuviper · 2025-06-23T17:05:16Z

Conflicts are because the beta branch just moved to 1.89. I'm going to close this, but we'll still need to check the crater results in #141588.

pietroalbini and others added 27 commits May 9, 2025 18:20

update version placeholders

43ba3ae

bump channel to beta

d63d8e5

Auto merge of rust-lang#140861 - pietroalbini:pa-beta, r=pietroalbini

be8721b

[beta] Prepare 1.88.0 beta https://forge.rust-lang.org/release/process.html#beta-pr r? `@ghost`

[beta-1.88] Update cargo

add3d33

Async drop fix for async_drop_in_place<T> layout calculated for unspe…

b166e65

…cified T

Auto merge of rust-lang#140918 - pietroalbini:pa-backport-140902, r=p…

5dadfd5

…ietroalbini Backport rust-lang#140902 to beta This PR backports rust-lang#140902 to the beta branch, to unblock the stage0 bump. r? `@ghost`

bump stage0

e5f05b9

Update the edition guide for let chains

e6d3581

(cherry picked from commit 577e82f)

Fix download of GCC from CI on non-nightly channels

e396698

(cherry picked from commit 448b7af)

[win][arm64] Remove 'Arm64 Hazard' undocumented MSVC option and inste…

542e61c

…ad disable problematic test (cherry picked from commit 6128fca)

Do not call name() on rpitit assoc_item

14acce0

(cherry picked from commit 66d47c1)

Use Docker cache from the current repository

eafa0f9

This is needed to make the cache work after moving CI from the `rust-lang-ci` org to `rust-lang`. (cherry picked from commit eb53032)

Move dist-x86_64-linux CI job to GitHub temporarily

b3094a5

To make it easier to migrate off the `rust-lang-ci/rust` repository. (cherry picked from commit 7d32303)

ci: prepare aws access keys for migration

53458c8

(cherry picked from commit 806cd12)

Add bors environment to CI

1718bb2

This will be used to access secrets once we move off rust-lang-ci.

ci: split dist-arm-linux job

5257f89

Update to LLVM 20.1.5

1460957

(cherry picked from commit c7a2694)

Auto merge of rust-lang#141745 - cuviper:beta-next, r=cuviper

645b44e

[beta] backports - Update to LLVM 20.1.5 rust-lang#141063 r? cuviper

x86 (32/64): go back to passing SIMD vectors by-ptr

f84d99c

(cherry picked from commit 321db85)

abi_check: tweak some comments

490bc3e

(cherry picked from commit f01bbfc)

use correct edition when warning for unsafe attributes

6f3443d

If an attribute is re-emitted by a macro, the incorrect edition was used to emit warnings for unsafe attributes (cherry picked from commit 2c82574)

Auto merge of rust-lang#142423 - cuviper:beta-next, r=cuviper

f5534da

[beta] backports - x86 (32/64): go back to passing SIMD vectors by-ptr rust-lang#141309 - use correct edition when warning for unsafe attributes rust-lang#142261 r? cuviper

Backport rust-lang/stdarch#1818 for 1.88

0e928ca

rustbot assigned cuviper Jun 18, 2025

rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Jun 18, 2025

This was referenced Jun 20, 2025

[beta] backports #142791

Merged

Update stdarch submodule #141964

Merged

rustbot added the beta-accepted Accepted for backporting to the compiler in the beta channel. label Jun 20, 2025

cuviper added this to the 1.88.0 milestone Jun 22, 2025

promote-release bot force-pushed the beta branch from 32084cf to 22be76b Compare June 23, 2025 16:57

cuviper closed this Jun 23, 2025

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Backport rust-lang/stdarch#1818 for 1.88 #142694

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Backport rust-lang/stdarch#1818 for 1.88 #142694

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