Rollup of 14 pull requests by JonathanBrouwer · Pull Request #154008 · rust-lang/rust

JonathanBrouwer · 2026-03-17T16:51:36Z

Successful merges:

stdarch subtree update #153972 (stdarch subtree update)
Add the option to run UI tests with the parallel frontend #153801 (Add the option to run UI tests with the parallel frontend)
Fix non-module parent_module in stripped cfg diagnostics #153959 (Fix non-module parent_module in stripped cfg diagnostics)
Tweak wording of failed predicate in inference error #153967 (Tweak wording of failed predicate in inference error)
Flip "region lattice" in RegionKind doc comment #152968 (Flip "region lattice" in RegionKind doc comment)
Fix LegacyKeyValueFormat report from docker build: various #153531 (Fix LegacyKeyValueFormat report from docker build: various)
remove concept of soft-unstable features #153622 (remove concept of soft-unstable features)
Fix hypothetical ICE in variances_of #153709 (Fix hypothetical ICE in variances_of)
test classify-runtime-const for f16 #153884 (test classify-runtime-const for f16)
Point at unit structs on foreign crates in type errors when they are the pattern of a binding #153894 (Point at unit structs on foreign crates in type errors when they are the pattern of a binding)
improve #[track_caller] invalid ABI error #153920 (improve #[track_caller] invalid ABI error)
dissolve tests/ui/cross #153946 (dissolve tests/ui/cross)
Fix minor kasan bugs #153965 (Fix minor kasan bugs)
Small report_cycle refactor #153991 (Small report_cycle refactor)

r? @ghost

Create a similar rollup

Add immediate-mode AMX intrinsics

Fix LLVM intrinsic signatures for AVX-VNNI

…atures remove use of `wasm_target_feature` on wasm target arch

Correct const-stability attribute for avx512bw intrinsics

Add `movrs` intrinsics

This updates the rust-version file to eda4fc7.

Pull recent changes from https://github.com/rust-lang/rust via Josh. Upstream ref: rust-lang/rust@eda4fc7 Filtered ref: rust-lang/stdarch@3f3adc6 Upstream diff: rust-lang/rust@1396514...eda4fc7 This merge was created using https://github.com/rust-lang/josh-sync.

…at-min-max" This reverts commit 6a8a764262df5e65c06bc5d9180046a636a53ce9, reversing changes made to a37563b5f8cec0c873864b786c33d00386189916.

Revert "Merge pull request rust-lang#1871 from folkertdev/aarch64-float-min-max"

Rustc pull update

s390x: use llvm intrinsics instead of simd_fmin/fmax

…duce-min-max aarch64: use `simd_reduce_{min, max}` on integers

s390x: add f64 tests for vec_min

ci is showing a lot of warnings (72) right now. apparently actions/checkout@v4 uses Node.js 20, and all github actions are scheduled to be force opted-in to Node.js 24 on 2026-06-02. I don't anticipate bumping the checkout action to v6 / Node.js 24 to cause any issues (Node.js 24 drops support for ARM32 and macOS versions <= 13.4, but this shouldn't matter because we use Docker to test in those environments, not github runners natively) but if it does cause issues it's probably better to find out now rather than by surprise 3 months from now... :)

ci: update to actions/checkout@v6

JonathanBrouwer · 2026-03-17T16:51:49Z

@bors r+ rollup=never p=5

rust-bors · 2026-03-17T16:51:59Z

📌 Commit 880d85f has been approved by JonathanBrouwer

It is now in the queue for this repository.

rust-bors · 2026-03-17T20:11:26Z

☀️ Test successful - CI
Approved by: JonathanBrouwer
Duration: 3h 19m 6s
Pushing 85e19b8 to main...

github-actions · 2026-03-17T20:14:28Z

What is this?

This is an experimental post-merge analysis report that shows differences in test outcomes between the merged PR and its parent PR.

Comparing b711f95 (parent) -> 85e19b8 (this PR)

Test differences

Show 676 test diffs

Stage 1

[ui] tests/ui/coercion/no-implicit-box-to-ref-coercion.rs: [missing] -> pass (J0)
[ui] tests/ui/cross-crate/cross-crate-macro-backtrace.rs: [missing] -> pass (J0)
[ui] tests/ui/cross/cross-borrow-trait.rs: pass -> [missing] (J0)
[ui] tests/ui/cross/cross-crate-macro-backtrace/main.rs: pass -> [missing] (J0)
[ui] tests/ui/cross/cross-file-errors/main.rs: pass -> [missing] (J0)
[ui] tests/ui/cross/cross-file-errors/underscore.rs: ignore (ignored used by another main test file ((used by ./main.rs))) -> [missing] (J0)
[ui] tests/ui/cross/cross-fn-cache-hole.rs: pass -> [missing] (J0)
[ui] tests/ui/float/classify-runtime-const.rs#ctfe: pass -> ignore (ignored when the LLVM version 21.1.2 is older than 22.0.0) (J0)
[ui] tests/ui/float/classify-runtime-const.rs#noopt: pass -> ignore (ignored when the LLVM version 21.1.2 is older than 22.0.0) (J0)
[ui] tests/ui/float/classify-runtime-const.rs#opt: pass -> ignore (ignored when the LLVM version 21.1.2 is older than 22.0.0) (J0)
[ui] tests/ui/macros/cross-file-errors.rs: [missing] -> pass (J0)
[ui] tests/ui/macros/underscore.rs: [missing] -> ignore (ignored used by another main test file ((used by ./main.rs))) (J0)
[ui] tests/ui/resolve/pub-in-path-153848.rs: [missing] -> pass (J0)
[ui] tests/ui/traits/cross-fn-cache-hole.rs: [missing] -> pass (J0)

Stage 2

[ui] tests/ui/coercion/no-implicit-box-to-ref-coercion.rs: [missing] -> pass (J1)
[ui] tests/ui/cross-crate/cross-crate-macro-backtrace.rs: [missing] -> pass (J1)
[ui] tests/ui/cross/cross-borrow-trait.rs: pass -> [missing] (J1)
[ui] tests/ui/cross/cross-crate-macro-backtrace/main.rs: pass -> [missing] (J1)
[ui] tests/ui/cross/cross-file-errors/main.rs: pass -> [missing] (J1)
[ui] tests/ui/cross/cross-file-errors/underscore.rs: ignore (ignored used by another main test file ((used by ./main.rs))) -> [missing] (J1)
[ui] tests/ui/cross/cross-fn-cache-hole.rs: pass -> [missing] (J1)
[ui] tests/ui/macros/cross-file-errors.rs: [missing] -> pass (J1)
[ui] tests/ui/macros/underscore.rs: [missing] -> ignore (ignored used by another main test file ((used by ./main.rs))) (J1)
[ui] tests/ui/resolve/pub-in-path-153848.rs: [missing] -> pass (J1)
[ui] tests/ui/traits/cross-fn-cache-hole.rs: [missing] -> pass (J1)
[ui] tests/ui/float/classify-runtime-const.rs#ctfe: pass -> ignore (ignored when the LLVM version 21.1.2 is older than 22.0.0) (J2)
[ui] tests/ui/float/classify-runtime-const.rs#noopt: pass -> ignore (ignored when the LLVM version 21.1.2 is older than 22.0.0) (J2)
[ui] tests/ui/float/classify-runtime-const.rs#opt: pass -> ignore (ignored when the LLVM version 21.1.2 is older than 22.0.0) (J2)

Additionally, 648 doctest diffs were found. These are ignored, as they are noisy.

Job group index

Test dashboard

Run

cargo run --manifest-path src/ci/citool/Cargo.toml -- \
    test-dashboard 85e19b8ce869aaef0d5389a050ddee7b258b8029 --output-dir test-dashboard

And then open test-dashboard/index.html in your browser to see an overview of all executed tests.

Job duration changes

pr-check-1: 28m 14s -> 33m 12s (+17.6%)
dist-apple-various: 1h 29m -> 1h 42m (+15.1%)
x86_64-rust-for-linux: 49m 14s -> 56m 38s (+15.0%)
aarch64-apple: 2h 56m -> 2h 31m (-14.2%)
dist-ohos-x86_64: 1h 10m -> 1h 17m (+10.0%)
dist-x86_64-netbsd: 1h 23m -> 1h 30m (+8.6%)
x86_64-gnu-llvm-21: 1h 11m -> 1h 17m (+8.5%)
dist-aarch64-llvm-mingw: 1h 34m -> 1h 41m (+8.0%)
dist-ohos-armv7: 1h 7m -> 1h 13m (+7.7%)
x86_64-gnu-distcheck: 2h 19m -> 2h 9m (-7.5%)

How to interpret the job duration changes?

Job durations can vary a lot, based on the actual runner instance
that executed the job, system noise, invalidated caches, etc. The table above is provided
mostly for t-infra members, for simpler debugging of potential CI slow-downs.

rust-timer · 2026-03-17T20:52:29Z

Finished benchmarking commit (85e19b8): comparison URL.

Overall result: ❌✅ regressions and improvements - no action needed

@rustbot label: -perf-regression

Instruction count

Our most reliable metric. Used to determine the overall result above. However, even this metric can be noisy.

	mean	range	count
Regressions ❌ (primary)	0.2%	[0.2%, 0.2%]	1
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-0.1%	[-0.1%, -0.1%]	2
All ❌✅ (primary)	0.2%	[0.2%, 0.2%]	1

Max RSS (memory usage)

Results (primary -1.6%, secondary -1.6%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	1.7%	[1.3%, 2.3%]	3
Improvements ✅ (primary)	-1.6%	[-2.9%, -0.6%]	7
Improvements ✅ (secondary)	-2.3%	[-4.1%, -1.1%]	16
All ❌✅ (primary)	-1.6%	[-2.9%, -0.6%]	7

Cycles

This benchmark run did not return any relevant results for this metric.

Binary size

Results (primary 0.0%, secondary 0.0%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	0.0%	[0.0%, 0.0%]	8
Regressions ❌ (secondary)	0.0%	[0.0%, 0.0%]	2
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.0%	[0.0%, 0.0%]	8

Bootstrap: 481.409s -> 480.745s (-0.14%)
Artifact size: 394.91 MiB -> 396.86 MiB (0.49%)

sayantn and others added 30 commits March 2, 2026 00:32

Fix LLVM intrinsic signatures for AVX-VNNI

a24022a

Correct stability attribute for avx512bw intrinsics

35f7c8b

Add immediate AMX intrinsics

985cd23

Merge pull request rust-lang#2043 from sayantn/amx-avx512

5d3caa5

Add immediate-mode AMX intrinsics

Merge pull request rust-lang#2044 from sayantn/fix-signatures

3483792

Fix LLVM intrinsic signatures for AVX-VNNI

Add movrs intrinsics

48d573f

gate use of wasm_target_feature on wasm target arch

6abb95c

Merge pull request rust-lang#2049 from folkertdev/gate-wasm-target-fe…

753e5b8

…atures remove use of `wasm_target_feature` on wasm target arch

Merge pull request rust-lang#2047 from sayantn/correct-bw-const

c61045d

Correct const-stability attribute for avx512bw intrinsics

Merge pull request rust-lang#2048 from sayantn/movrs

3494337

Add `movrs` intrinsics

add ACLE random number generation intrinsics

6c7d342

Fix LegacyKeyValueFormat report from docker build: various

dceeb20

Prepare for merging from rust-lang/rust

279c43e

This updates the rust-version file to eda4fc7.

remove concept of soft-unstable features

59dfb9e

Revert "Merge pull request rust-lang#1871 from folkertdev/aarch64-flo…

f1bd647

…at-min-max" This reverts commit 6a8a764262df5e65c06bc5d9180046a636a53ce9, reversing changes made to a37563b5f8cec0c873864b786c33d00386189916.

Merge pull request rust-lang#2052 from RalfJung/avoid-simd-minmax

d97cd54

Revert "Merge pull request rust-lang#1871 from folkertdev/aarch64-float-min-max"

aarch64: use simd_reduce_{min, max} on integers

46bada3

Merge pull request rust-lang#2051 from rust-lang/rustc-pull

f326a42

Rustc pull update

s390x: use llvm.s390 intrinsics instead of simd_fmin/fmax

752a87f

add f32 min/max tests

47d82e2

go back to portable LLVM intrinsic to avoid fallback trouble

a668717

Merge pull request rust-lang#2058 from RalfJung/s390x-minmax

e6dc137

s390x: use llvm intrinsics instead of simd_fmin/fmax

s390x: add f64 tests for vec_min

80b8698

Merge pull request rust-lang#2053 from folkertdev/aarch64-int-simd-re…

ebd8272

…duce-min-max aarch64: use `simd_reduce_{min, max}` on integers

Merge pull request rust-lang#2061 from RalfJung/f64-tests

b245493

s390x: add f64 tests for vec_min

remove cfg_attr on aarch64/arm64ec in the aarch64 module

4f10c64

inline assert_instr tests

ccf7d4e

Merge pull request rust-lang#2062 from clado/github-action-checkout-v6

185a329

ci: update to actions/checkout@v6

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 Mar 17, 2026

rust-bors bot mentioned this pull request Mar 17, 2026

stdarch subtree update #153972

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JonathanBrouwer mentioned this pull request Mar 17, 2026

Rollup of 7 pull requests #154001

Closed

rust-bors bot added merged-by-bors This PR was explicitly merged by bors. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Mar 17, 2026

rust-bors bot merged commit 85e19b8 into rust-lang:main Mar 17, 2026
12 checks passed

rustbot added this to the 1.96.0 milestone Mar 17, 2026

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Rollup of 14 pull requests#154008

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Overall result: ❌✅ regressions and improvements - no action needed

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