stdarch subtree update by folkertdev · Pull Request #161558 · rust-lang/rust

folkertdev · 2026-08-22T20:22:42Z

Subtree update of stdarch to rust-lang/stdarch@0d4e35e.

Created using https://github.com/rust-lang/josh-sync.

r? @ghost

This allows building the resulting workspace with --locked.

fix:set newline_style=Unix

Revert "x86: Followup to add const for pack intrinsics and tests"

…es nothing

…ng_packs Revert "x86: use `simd::intrinsics` for saturating packs"

Generate lockfile in intrinsic-test

_mm_maskmoveu_si128 requires mutable in-bounds memory even when it does nothing

rustbot · 2026-08-22T22:40:15Z

stdarch is developed in its own repository. If possible, consider making this change to rust-lang/stdarch instead.

cc @Amanieu, @sayantn

folkertdev · 2026-08-22T22:40:24Z

@bors r+ p=1

rust-bors · 2026-08-22T22:40:27Z

📌 Commit 42e5eff has been approved by folkertdev

It is now in the queue for this repository.

Rollup of 8 pull requests Successful merges: - #161558 (stdarch subtree update) - #159887 (compiletest: forward disable-minification from bootstrap) - #160229 (Extend `dropping_{references,copy_types}` lints to `drop_in_place`) - #160949 (Add floating point inline ASM support for SPARC) - #156160 (feat: add symmetric PartialEq impls for Vec, &[T], &mut [T] versus Cow<'_, [T]>) - #160914 (Derive `GenericTypeVisitable` for `RegionConstraint` _correctly_) - #161341 (be more permissive wrt overflow and and improve diagnostics) - #161530 (Add regression test for gce dependency ICE in non-gce crate)

@ghost

stdarch subtree update Subtree update of `stdarch` to rust-lang/stdarch@0d4e35e. Created using https://github.com/rust-lang/josh-sync. r? @ghost

rust-bors · 2026-08-23T02:48:56Z

⌛ Testing commit 42e5eff with merge f372697...

Workflow: https://github.com/rust-lang/rust/actions/runs/32613782530

jhpratt · 2026-08-23T02:50:17Z

@bors yield to rollup retry

rust-bors · 2026-08-23T02:50:20Z

Auto build was cancelled. Cancelled workflows:

https://github.com/rust-lang/rust/actions/runs/32613782530

The next pull request likely to be tested is #161566.

Rollup of 8 pull requests Successful merges: - #161558 (stdarch subtree update) - #159887 (compiletest: forward disable-minification from bootstrap) - #160229 (Extend `dropping_{references,copy_types}` lints to `drop_in_place`) - #160949 (Add floating point inline ASM support for SPARC) - #156160 (feat: add symmetric PartialEq impls for Vec, &[T], &mut [T] versus Cow<'_, [T]>) - #160914 (Derive `GenericTypeVisitable` for `RegionConstraint` _correctly_) - #161341 (be more permissive wrt overflow and and improve diagnostics) - #161530 (Add regression test for gce dependency ICE in non-gce crate)

rust-bors · 2026-08-23T04:01:50Z

⌛ Testing commit 42e5eff with merge 842f70f...

Workflow: https://github.com/rust-lang/rust/actions/runs/32616833557

@ghost

stdarch subtree update Subtree update of `stdarch` to rust-lang/stdarch@0d4e35e. Created using https://github.com/rust-lang/josh-sync. r? @ghost

jhpratt · 2026-08-23T04:04:05Z

@bors yield

rust-bors · 2026-08-23T04:04:09Z

Auto build was cancelled. Cancelled workflows:

https://github.com/rust-lang/rust/actions/runs/32616833557

The next pull request likely to be tested is #161566.

Rollup of 8 pull requests Successful merges: - #161558 (stdarch subtree update) - #159887 (compiletest: forward disable-minification from bootstrap) - #160229 (Extend `dropping_{references,copy_types}` lints to `drop_in_place`) - #160949 (Add floating point inline ASM support for SPARC) - #156160 (feat: add symmetric PartialEq impls for Vec, &[T], &mut [T] versus Cow<'_, [T]>) - #160914 (Derive `GenericTypeVisitable` for `RegionConstraint` _correctly_) - #161341 (be more permissive wrt overflow and and improve diagnostics) - #161530 (Add regression test for gce dependency ICE in non-gce crate)

@ghost

Rollup merge of #161558 - folkertdev:stdarch-sync-2026-09-22, r=folkertdev stdarch subtree update Subtree update of `stdarch` to rust-lang/stdarch@0d4e35e. Created using https://github.com/rust-lang/josh-sync. r? @ghost

Rollup of 8 pull requests Successful merges: - rust-lang/rust#161558 (stdarch subtree update) - rust-lang/rust#159887 (compiletest: forward disable-minification from bootstrap) - rust-lang/rust#160229 (Extend `dropping_{references,copy_types}` lints to `drop_in_place`) - rust-lang/rust#160949 (Add floating point inline ASM support for SPARC) - rust-lang/rust#156160 (feat: add symmetric PartialEq impls for Vec, &[T], &mut [T] versus Cow<'_, [T]>) - rust-lang/rust#160914 (Derive `GenericTypeVisitable` for `RegionConstraint` _correctly_) - rust-lang/rust#161341 (be more permissive wrt overflow and and improve diagnostics) - rust-lang/rust#161530 (Add regression test for gce dependency ICE in non-gce crate)

RalfJung · 2026-08-31T15:35:56Z

Should 50c4cbb and 7b002b7 be backported, as they fix a bad performance regression? See #159464, rust-lang/stdarch#2208 for context. This has regressed already with 1.96, but a backport could still help to have one fewer release affected by the problem.

bjorn3 and others added 11 commits August 13, 2026 12:27

Generate lockfile in intrinsic-test

812c5b3

This allows building the resulting workspace with --locked.

set newline_style=Unix

9b65dd5

add comment

d4c0f0a

Merge pull request rust-lang#2209 from xonx4l/fix-line-ending-mismatch

bb56849

fix:set newline_style=Unix

Revert "x86: Followup to add const for pack intrinsics and tests"

50c4cbb

Merge pull request rust-lang#2210 from rust-lang/revert-2035-const_packs

ff185d6

Revert "x86: Followup to add const for pack intrinsics and tests"

_mm_maskmoveu_si128 requires mutable in-bounds memory even when it do…

afaccc0

…es nothing

Revert "x86: use simd::intrinsics for saturating packs"

7b002b7

Merge pull request rust-lang#2211 from rust-lang/revert-2033-saturati…

20ae686

…ng_packs Revert "x86: use `simd::intrinsics` for saturating packs"

Merge pull request rust-lang#2202 from bjorn3/intrinsic_test_lockfile

33930d9

Generate lockfile in intrinsic-test

Merge pull request rust-lang#2196 from RalfJung/_mm_maskmoveu_si128

42e5eff

_mm_maskmoveu_si128 requires mutable in-bounds memory even when it does nothing

rustbot added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Aug 22, 2026

folkertdev marked this pull request as ready for review August 22, 2026 22:40

rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Aug 22, 2026

rust-bors Bot added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 22, 2026

jhpratt mentioned this pull request Aug 22, 2026

Rollup of 8 pull requests #161566

Merged

rust-bors Bot merged commit f1916dc into rust-lang:main Aug 23, 2026
13 of 14 checks passed

rustbot added this to the 1.100.0 milestone Aug 23, 2026

okaneco mentioned this pull request Aug 23, 2026

Regression of std::arch::x86_64::_mm_packus_epi16 in rustc 1.96 - emits unnecessary (still correct) pmaxsw and pminsw before packuswb #159464

Closed

folkertdev mentioned this pull request Aug 31, 2026

Bad codegen for _mm_packus_epi16 rust-lang/stdarch#2208

Closed

RalfJung added the beta-nominated Nominated for backporting to the compiler in the beta channel. label Aug 31, 2026

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stdarch subtree update - #161558

stdarch subtree update#161558
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folkertdev:stdarch-sync-2026-09-22

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