stdarch subtree update by folkertdev · Pull Request #153336 · rust-lang/rust

folkertdev · 2026-03-03T09:32:15Z

Subtree update of stdarch to rust-lang/stdarch@d4a226d.

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

cleanup long shuffle mask literals

Use intrinsics for `sse2`, `sse41`, `avx2`, `avx512bw` The majority of implementations make use of `simd_shuffle` since that optimized through to the avx512 intrinsics that made use of the lower target feature intrinsics. Combined with masked stores, instruction tests would fail presumably due to the casting and clamping that the compiler couldn't see through. This is a known weakness as seen in the other masked stores like the truncating conversion stores.

x86: use `simd::intrinsics` for saturating packs

Add const to `sse2`, `sse41`, `avx2`, and `avx512bw` functions and tests

use `intrinsics::simd` for interleaving store

aarch64: cleanup of some long array literals

x86: Followup to add const for pack intrinsics and tests

Update Intel SDE version to 10.5

update to `resolver = 3`

Add missing runtime test for _mm_comige_ss and fix _mm_comigt_ss test

…f-two-reads-writes aarch64: fix UB in non-power-of-two reads and writes

rustbot · 2026-03-03T09:32:19Z

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

cc @Amanieu, @sayantn

@ghost

…, r=folkertdev stdarch subtree update Subtree update of `stdarch` to rust-lang/stdarch@d4a226d. Created using https://github.com/rust-lang/josh-sync. r? @ghost

…uwer Rollup of 3 pull requests Successful merges: - #153336 (stdarch subtree update) - #153285 (Update call-llvm-intrinsics test for Rust 1.94.0 IR) - #153326 (Make `rustc_with_all_queries!` pass query modifiers as named values)

…uwer Rollup of 6 pull requests Successful merges: - #153336 (stdarch subtree update) - #152943 (Parse `impl` restrictions) - #153184 (Replace CodegenResults with CompiledModules) - #153285 (Update call-llvm-intrinsics test for Rust 1.94.0 IR) - #153319 (Comments and docs: add missing periods to "ie.") - #153326 (Make `rustc_with_all_queries!` pass query modifiers as named values)

@ghost

Rollup merge of #153336 - folkertdev:stdarch-sync-2026-03-03, r=folkertdev stdarch subtree update Subtree update of `stdarch` to rust-lang/stdarch@d4a226d. Created using https://github.com/rust-lang/josh-sync. r? @ghost

…uwer Rollup of 6 pull requests Successful merges: - rust-lang/rust#153336 (stdarch subtree update) - rust-lang/rust#152943 (Parse `impl` restrictions) - rust-lang/rust#153184 (Replace CodegenResults with CompiledModules) - rust-lang/rust#153285 (Update call-llvm-intrinsics test for Rust 1.94.0 IR) - rust-lang/rust#153319 (Comments and docs: add missing periods to "ie.") - rust-lang/rust#153326 (Make `rustc_with_all_queries!` pass query modifiers as named values)

folkertdev · 2026-03-04T22:07:33Z

This PR contains a fix for out-of-bounds reads/writes on aarch64 on vectors of length 12 (the important property is that the element count is not a power of 2).

The issue was reported in rust-lang/stdarch#2036 and fixed by rust-lang/stdarch#2042. It's probably easiest to backport the whole sync PR, it only missed the beta cutoff by a couple of days.

…uwer Rollup of 6 pull requests Successful merges: - rust-lang/rust#153336 (stdarch subtree update) - rust-lang/rust#152943 (Parse `impl` restrictions) - rust-lang/rust#153184 (Replace CodegenResults with CompiledModules) - rust-lang/rust#153285 (Update call-llvm-intrinsics test for Rust 1.94.0 IR) - rust-lang/rust#153319 (Comments and docs: add missing periods to "ie.") - rust-lang/rust#153326 (Make `rustc_with_all_queries!` pass query modifiers as named values)

@bors

… r=sayantn add neon load/store assembly test I'm adding this test because it was requested for the beta backport of rust-lang#153336. We'd like to test this with Miri, but currently there is no load/store pair that roundtrips because one or the other still uses the platform-specific intrinsics. r? sayantn I believe test-various runs some arm and android tests? @bors try job=test-various

@bors

… r=sayantn add neon load/store assembly test I'm adding this test because it was requested for the beta backport of rust-lang#153336. We'd like to test this with Miri, but currently there is no load/store pair that roundtrips because one or the other still uses the platform-specific intrinsics. r? sayantn I believe test-various runs some arm and android tests? @bors try job=test-various

@bors

… r=sayantn add neon load/store assembly test I'm adding this test because it was requested for the beta backport of rust-lang#153336. We'd like to test this with Miri, but currently there is no load/store pair that roundtrips because one or the other still uses the platform-specific intrinsics. r? sayantn I believe test-various runs some arm and android tests? @bors try job=test-various

@bors

… r=sayantn add neon load/store assembly test I'm adding this test because it was requested for the beta backport of rust-lang#153336. We'd like to test this with Miri, but currently there is no load/store pair that roundtrips because one or the other still uses the platform-specific intrinsics. r? sayantn I believe test-various runs some arm and android tests? @bors try job=test-various

@bors

add neon load/store assembly test I'm adding this test because it was requested for the beta backport of #153336. We'd like to test this with Miri, but currently there is no load/store pair that roundtrips because one or the other still uses the platform-specific intrinsics. r? sayantn I believe test-various runs some arm and android tests? @bors try job=test-various

@bors

… r=sayantn add neon load/store assembly test I'm adding this test because it was requested for the beta backport of rust-lang#153336. We'd like to test this with Miri, but currently there is no load/store pair that roundtrips because one or the other still uses the platform-specific intrinsics. r? sayantn I believe test-various runs some arm and android tests? @bors try job=test-various

[beta] backports - stdarch subtree update #153336 (partial) - aarch64: fix UB in non-power-of-two reads and writes rust-lang/stdarch#2042 - add neon load/store assembly test #154094 - don't drop arguments' temporaries in `dbg!` #154074 - Init self_decl with a correct vis #154313 - Update LLVM to 22.1.2 #154344 - [perf] Revert FastISel patch #154511 - core: Destabilize beta-stable `RangeInclusiveIter::remainder` #154459 - Revert "Fix: On wasm targets, call `panic_in_cleanup` if panic occurs in cleanup" #154700 - core: Update the feature gate on `TryFrom<integer> for bool` #154691 r? cuviper

…uwer Rollup of 6 pull requests Successful merges: - rust-lang/rust#153336 (stdarch subtree update) - rust-lang/rust#152943 (Parse `impl` restrictions) - rust-lang/rust#153184 (Replace CodegenResults with CompiledModules) - rust-lang/rust#153285 (Update call-llvm-intrinsics test for Rust 1.94.0 IR) - rust-lang/rust#153319 (Comments and docs: add missing periods to "ie.") - rust-lang/rust#153326 (Make `rustc_with_all_queries!` pass query modifiers as named values)

folkertdevand others added 28 commits February 18, 2026 21:31

cleanup long shuffle mask literals
f0fd6f7

use intrinsics::simd for interleaving store
c0c9d02

use intrinsics::simd for interleaving store of int64x1
e219383

use intrinsics::simd for interleaving store of f16
afb890e

use intrinsics::simd for aarch64 interleaving st
2b656f9

Merge pull requestrust-lang#2031from folkertdev/cleanup-shuffle-masks
2b5ca1c
cleanup long shuffle mask literals

Use intrinsics for sse41
6fa33be

Use intrinsics for avx2
639b07e

Use intrinsics for avx512bw
c7ecbd5

Merge pull requestrust-lang#2033from okaneco/saturating_packs
1dc3d8c
x86: use `simd::intrinsics` for saturating packs

x86: Followup to add const for pack intrinsics
22d10c5
Add const to `sse2`, `sse41`, `avx2`, and `avx512bw` functions and tests

Add const to sse41 intrinsics
17a4c8e

Add const to avx2 intrinsics
4f881c4

Add const to avx512bw intrinsics
37bd99e

Merge pull requestrust-lang#2032from folkertdev/interleaving-store
ff558be
use `intrinsics::simd` for interleaving store

aarch64: cleanup of some long array literals
47ef7f7

Merge pull requestrust-lang#2037from folkertdev/lane-literal-cleanup
ccc6e96
aarch64: cleanup of some long array literals

Merge pull requestrust-lang#2035from okaneco/const_packs
f4cc7ee
x86: Followup to add const for pack intrinsics and tests

Update Intel SDE version to 10.5
820ca48

Merge pull requestrust-lang#2038from sayantn/sde-update
c66d49f
Update Intel SDE version to 10.5

update to resolver = 3
f01bcce

Add missing runtime test for _mm_comige_ss and fix _mm_comigt_ss test
cb3046e

Merge pull requestrust-lang#2039from folkertdev/update-resolver
bbdc754
update to `resolver = 3`

Remove _mm_comige_ss from skip list in x86-intel.rs
f981ffe

aarch64: fix UB in non-power-of-two reads and writes
2fa37e7

Merge pull requestrust-lang#2040from ArunTamil21/add-test-mm-comige-ss
d06233d
Add missing runtime test for _mm_comige_ss and fix _mm_comigt_ss test

Merge pull requestrust-lang#2042from folkertdev/aarch64-non-power-o…
e00790e
…f-two-reads-writes aarch64: fix UB in non-power-of-two reads and writes

rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Mar 3, 2026

JonathanBrouwer mentioned this pull request Mar 3, 2026
Rollup of 3 pull requests #153342
Closed

JonathanBrouwer mentioned this pull request Mar 3, 2026
Rollup of 6 pull requests #153344
Merged

rust-borsBot merged commit 8b1ebb3 into rust-lang:mainMar 3, 2026
11 checks passed

rustbot added this to the 1.96.0 milestone Mar 3, 2026

folkertdev mentioned this pull request Mar 4, 2026
[beta] prepare Rust 1.95.0-beta #153314
Merged

folkertdev added the beta-nominated Nominated for backporting to the compiler in the beta channel. label Mar 4, 2026

folkertdev mentioned this pull request Mar 19, 2026
add neon load/store assembly test #154094
Merged

Amanieu added the beta-accepted Accepted for backporting to the compiler in the beta channel. label Apr 1, 2026

cuviper mentioned this pull request Apr 2, 2026
[beta] backports #154725
Merged

cuviper removed the beta-nominated Nominated for backporting to the compiler in the beta channel. label Apr 2, 2026

cuviper modified the milestones: 1.96.0, 1.95.0 Apr 2, 2026

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stdarch subtree update - #153336

stdarch subtree update#153336
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