Rollup of 10 pull requests #136135

GuillaumeGomez · 2025-01-27T14:38:33Z

Successful merges:

Clarify WindowsMut (Lending)Iterator #135773 (Clarify WindowsMut (Lending)Iterator)
Implement phantom variance markers #135807 (Implement phantom variance markers)
fix doc for std::sync::mpmc #135876 (fix doc for std::sync::mpmc)
Add a workaround for parallel rustc crashing when there are delayed bugs #135988 (Add a workaround for parallel rustc crashing when there are delayed bugs)
Mark all NuttX targets as tier 3 target and support the standard library #136037 (Mark all NuttX targets as tier 3 target and support the standard library)
Add a suggestion to cast target_feature fn items to fn pointers. #136064 (Add a suggestion to cast target_feature fn items to fn pointers.)
Incorporate iter_nodes into graph::DirectedGraph #136082 (Incorporate iter_nodes into graph::DirectedGraph)
Clean up all dead files inside tests/ui/ #136112 (Clean up all dead files inside tests/ui/)
Use identifiers more in diagnostics code #136114 (Use identifiers more in diagnostics code)
Change collect_and_partition_mono_items tuple return type to a struct #136118 (Change collect_and_partition_mono_items tuple return type to a struct)

r? @ghost
@rustbot modify labels: rollup

This doesn't fix the root cause of this crash, but at least stops it from happening for the time being.

See rust-lang#134090 (comment) for the motivation behind this suggestion.

This assumes that the set of valid node IDs is exactly `0..num_nodes`. In practice, we have a lot of graph-algorithm code that already assumes that nodes are densely numbered, by using `num_nodes` to allocate per-node indexed data structures.

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>

fixes 133628

Clarify WindowsMut (Lending)Iterator fixes rust-lang#133628

Implement phantom variance markers ACP accepted rust-lang/libs-team#488 Tracking issue rust-lang#135806

fix doc for std::sync::mpmc fix document of `std::sync::mpmc` (tracked in rust-lang#126840)

…rash, r=lqd Add a workaround for parallel rustc crashing when there are delayed bugs This doesn't fix the root cause of this crash, but at least stops it from happening for the time being. Workaround for rust-lang#135870

Mark all NuttX targets as tier 3 target and support the standard library The support for standard library added by rust-lang#130595.

Add a suggestion to cast target_feature fn items to fn pointers. See rust-lang#134090 (comment) for the motivation behind this suggestion. r? oli-obk

Incorporate `iter_nodes` into `graph::DirectedGraph` This helper method iterates over all node IDs in the dense range `0..num_nodes`. In practice, we have a lot of graph-algorithm code that already assumes that nodes are densely numbered, by using `num_nodes` to allocate per-node indexed data structures. So I don't think this is actually a substantial change to the de-facto semantics of `graph::DirectedGraph`. --- Resolves a FIXME from rust-lang#135481.

…ui-tests, r=compiler-errors Clean up all dead files inside `tests/ui/` While rebasing rust-lang#135860 I noticed that there are several dead `*.stderr` files inside `tests/ui/`. When I checked thoroughly, I found 69 dead `*.$revision.stderr` files, 3 other dead `*.stderr` files and one dead `*.rs` file. Prior to rust-lang#134808, compiletest's `--bless` didn't remove dead `*.stderr` files when the set of revisions changed in any way (renamings, removals, additions, …) which explains their existence. Regarding the dead `*.rs` file, that one was located inside an `auxiliary/` directory (together with a `*.stderr` file) despite not being meant to be an auxiliary file (it's not referenced by any `//@ aux-*`, it has an accompanying `*.stderr` file and it's obvious from looking at rust-lang#111056 which added it). Ideally compiletest or tidy would forbid `*.std{out,err}` files inside `auxiliary/` dirs, that would've caught it. I moved it, updated it and turned it into a proper UI test. --- How to reproduce: 1. Run `rm tests/ui/**/*.stderr` 2. Run `./x test tests/ui --bless` (or similar) 3. Manually / semi-automatically go through all tests that were ignored (likely due to your OS etc. not matching) and restore any stderr files that were overzealously removed --- r? compiler

…youxu Use identifiers more in diagnostics code This should make the diagnostics code slightly more correct when rendering idents in mixed crate edition situations. Kinda a no-op, but a cleanup regardless. r? oli-obk or reassign

Change `collect_and_partition_mono_items` tuple return type to a struct rust-lang#133429 will add a new field to this tuple, so it seems prudent to turn it into a struct first to avoid confusion about what the tuple elements mean.

GuillaumeGomez · 2025-01-27T14:38:44Z

@bors r+ p=8 rollup=never

bors · 2025-01-27T14:38:47Z

📌 Commit 3d02ce7 has been approved by GuillaumeGomez

It is now in the queue for this repository.

bors · 2025-01-27T17:50:39Z

⌛ Testing commit 3d02ce7 with merge ebcf860...

bors · 2025-01-27T20:34:01Z

☀️ Test successful - checks-actions
Approved by: GuillaumeGomez
Pushing ebcf860 to master...

rust-timer · 2025-01-27T20:37:41Z

📌 Perf builds for each rolled up PR:

PR#	Message	Perf Build Sha
#135773	Clarify WindowsMut (Lending)Iterator	`682cc5de600577ff41c069cd0904069809cc8fac` (link)
#135807	Implement phantom variance markers	`692dbd412e42d128c02e442d22aff8fd670017f5` (link)
#135876	fix doc for std::sync::mpmc	`dd9e55fcfdff7bbac405bf8ece66ad0da7688b66` (link)
#135988	Add a workaround for parallel rustc crashing when there are…	`d60268f053045a325594c05cc691d3ef1920793e` (link)
#136037	Mark all NuttX targets as tier 3 target and support the sta…	`26d9f8ce793c4e6fc5df8e1297be4584ce897230` (link)
#136064	Add a suggestion to cast target_feature fn items to fn poin…	`264512f027bb2e85fec0002b7c4b80b47df6e602` (link)
#136082	Incorporate `iter_nodes` into `graph::DirectedGraph`	`39f103e26264cba15c48b10d0f9900d58b3f1e9b` (link)
#136112	Clean up all dead files inside `tests/ui/`	`0f7e546cb1a5bee0ef15d6d469ebf2a16eebd500` (link)
#136114	Use identifiers more in diagnostics code	`89ab7b76c4676ed702a8cb1b4f39293b1992c4b4` (link)
#136118	Change `collect_and_partition_mono_items` tuple return type…	`35da286c415695b024f70ef68b385583d08c7a9d` (link)

previous master: 0cffe5cb95

In the case of a perf regression, run the following command for each PR you suspect might be the cause: @rust-timer build $SHA

rust-timer · 2025-01-27T21:50:46Z

Finished benchmarking commit (ebcf860): comparison URL.

Overall result: ❌ regressions - please read the text below

Our benchmarks found a performance regression caused by this PR.
This might be an actual regression, but it can also be just noise.

Next Steps:

If the regression was expected or you think it can be justified,
please write a comment with sufficient written justification, and add
@rustbot label: +perf-regression-triaged to it, to mark the regression as triaged.
If you think that you know of a way to resolve the regression, try to create
a new PR with a fix for the regression.
If you do not understand the regression or you think that it is just noise,
you can ask the @rust-lang/wg-compiler-performance working group for help (members of this group
were already notified of this PR).

@rustbot label: +perf-regression
cc @rust-lang/wg-compiler-performance

Instruction count

This is the most reliable metric that we have; it was used to determine the overall result at the top of this comment. However, even this metric can sometimes exhibit noise.

	mean	range	count
Regressions ❌ (primary)	0.3%	[0.2%, 0.3%]	2
Regressions ❌ (secondary)	0.2%	[0.2%, 0.3%]	9
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.3%	[0.2%, 0.3%]	2

Max RSS (memory usage)

Results (primary -0.1%, secondary 4.9%)

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	0.9%	[0.9%, 0.9%]	1
Regressions ❌ (secondary)	4.9%	[4.9%, 4.9%]	1
Improvements ✅ (primary)	-1.1%	[-1.1%, -1.1%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-0.1%	[-1.1%, 0.9%]	2

Cycles

Results (secondary 1.9%)

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	1.9%	[1.9%, 1.9%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Binary size

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

Bootstrap: 772.206s -> 774.391s (0.28%)
Artifact size: 328.24 MiB -> 328.16 MiB (-0.03%)

rylev · 2025-02-05T03:23:34Z

@rustbot build 89ab7b7

Kobzol · 2025-02-05T14:29:52Z

@rust-timer build 89ab7b7

rust-timer · 2025-02-05T15:47:01Z

Finished benchmarking commit (89ab7b7): comparison URL.

Overall result: no relevant changes - no action needed

Instruction count

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

Max RSS (memory usage)

Results (secondary -3.4%)

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-3.4%	[-3.4%, -3.4%]	1
All ❌✅ (primary)	-	-	0

Cycles

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

Binary size

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

Bootstrap: 772.206s -> 771.24s (-0.13%)
Artifact size: 328.24 MiB -> 328.24 MiB (0.00%)

lqd · 2025-02-05T16:21:08Z

@rust-timer build 692dbd4

rust-timer · 2025-02-05T18:17:34Z

Finished benchmarking commit (692dbd4): comparison URL.

Overall result: ❌ regressions - please read the text below

Instruction count

This is the most reliable metric that we have; it was used to determine the overall result at the top of this comment. However, even this metric can sometimes exhibit noise.

	mean	range	count
Regressions ❌ (primary)	0.3%	[0.3%, 0.3%]	2
Regressions ❌ (secondary)	0.3%	[0.2%, 0.3%]	10
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.3%	[0.3%, 0.3%]	2

Max RSS (memory usage)

Results (primary -0.5%, secondary 4.3%)

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	1.0%	[1.0%, 1.0%]	1
Regressions ❌ (secondary)	4.3%	[4.3%, 4.3%]	1
Improvements ✅ (primary)	-2.0%	[-2.0%, -2.0%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-0.5%	[-2.0%, 1.0%]	2

Cycles

Results (secondary 4.1%)

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	4.1%	[2.6%, 4.9%]	4
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Binary size

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

Bootstrap: 772.206s -> 772.753s (0.07%)
Artifact size: 328.24 MiB -> 328.24 MiB (0.00%)

lqd · 2025-02-05T18:21:52Z

Feels like the usual, changes to libstd/libcore => doc regressions

bjorn3 and others added 23 commits January 24, 2025 12:15

Add a workaround for parallel rustc crashing when there are delayed bugs

bc0170a

This doesn't fix the root cause of this crash, but at least stops it from happening for the time being.

Add a suggestion to cast target_feature fn items to fn pointers.

6bdc877

See rust-lang#134090 (comment) for the motivation behind this suggestion.

Implement phantom variance markers

b3a5d0a

Add regression test

6f543d5

Mark all NuttX targets as tier 3 target and support the standard library

ebf5363

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>

Use identifiers in diagnostics more often

ac1c6c5

Remove redundant to_ident_string calls

c08624d

Remove all dead files inside tests/ui/

0b18b4f

Make a previously unreachable UI test reachable

c38951b

fix doc for std::sync::mpmc

0536423

Change collect_and_partition_mono_items tuple return type to a struct

b24f674

Clarify WindowsMut (Lending)Iterator

f630f7f

fixes 133628

Rollup merge of rust-lang#135773 - hkBst:patch-10, r=tgross35

b7476f1

Clarify WindowsMut (Lending)Iterator fixes rust-lang#133628

Rollup merge of rust-lang#135807 - jhpratt:phantom-variance, r=Amanieu

314a695

Implement phantom variance markers ACP accepted rust-lang/libs-team#488 Tracking issue rust-lang#135806

Rollup merge of rust-lang#135876 - usamoi:mpmc-doc, r=tgross35

4d5c8bd

fix doc for std::sync::mpmc fix document of `std::sync::mpmc` (tracked in rust-lang#126840)

Rollup merge of rust-lang#136037 - no1wudi:doc, r=jieyouxu

2a2e5e8

Mark all NuttX targets as tier 3 target and support the standard library The support for standard library added by rust-lang#130595.

Rollup merge of rust-lang#136064 - veluca93:tf11-fntrait-note, r=oli-obk

06df5cd

Add a suggestion to cast target_feature fn items to fn pointers. See rust-lang#134090 (comment) for the motivation behind this suggestion. r? oli-obk

rustbot added the rollup A PR which is a rollup label Jan 27, 2025

bors 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 Jan 27, 2025

bors added the merged-by-bors This PR was explicitly merged by bors. label Jan 27, 2025

bors merged commit ebcf860 into rust-lang:master Jan 27, 2025
7 checks passed

rustbot added this to the 1.86.0 milestone Jan 27, 2025

GuillaumeGomez deleted the rollup-1ik636d branch January 27, 2025 20:38

This was referenced Jan 27, 2025

Autodiff Upstreaming - rustc_codegen_ssa, rustc_middle #133429

Merged

Stabilize target_feature_11 #134090

Open

Orphanck: Reject uncovered opaque types #135910

Draft

coverage: Defer part of counter-creation until codegen #136053

Open

rustbot added the perf-regression Performance regression. label Jan 27, 2025

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Rollup of 10 pull requests #136135

Rollup of 10 pull requests #136135

GuillaumeGomez commented Jan 27, 2025

GuillaumeGomez commented Jan 27, 2025

bors commented Jan 27, 2025

bors commented Jan 27, 2025

bors commented Jan 27, 2025

rust-timer commented Jan 27, 2025

rust-timer commented Jan 27, 2025

rylev commented Feb 5, 2025

Kobzol commented Feb 5, 2025

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rust-timer commented Feb 5, 2025

lqd commented Feb 5, 2025

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rust-timer commented Feb 5, 2025

lqd commented Feb 5, 2025

Rollup of 10 pull requests #136135

Rollup of 10 pull requests #136135

Conversation

GuillaumeGomez commented Jan 27, 2025

GuillaumeGomez commented Jan 27, 2025

bors commented Jan 27, 2025

bors commented Jan 27, 2025

bors commented Jan 27, 2025

rust-timer commented Jan 27, 2025

rust-timer commented Jan 27, 2025

Overall result: ❌ regressions - please read the text below

rylev commented Feb 5, 2025

Kobzol commented Feb 5, 2025

This comment has been minimized.

rust-timer commented Feb 5, 2025

Overall result: no relevant changes - no action needed

lqd commented Feb 5, 2025

This comment has been minimized.

rust-timer commented Feb 5, 2025

Overall result: ❌ regressions - please read the text below

lqd commented Feb 5, 2025