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Move generic NonZero rustc_layout_scalar_valid_range_start attribute to inner type. #121885

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merged 14 commits into from Mar 17, 2024
Merged

Move generic NonZero rustc_layout_scalar_valid_range_start attribute to inner type. #121885

merged 14 commits into from Mar 17, 2024

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Tracking issue: #120257

r? @dtolnay

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Mar 2, 2024
@reitermarkus reitermarkus mentioned this pull request Mar 2, 2024
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@Nilstrieb, @oli-obk, I re-added the rustc_nonnull_optimization_guaranteed to the generic type and highlighted the resulting bug in the lint.

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@reitermarkus reitermarkus force-pushed the generic-nonzero-inner branch 2 times, most recently from f93f0ae to 70bf864 Compare March 2, 2024 16:59
@reitermarkus reitermarkus marked this pull request as ready for review March 2, 2024 17:00
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rustbot commented Mar 2, 2024

The Miri subtree was changed

cc @rust-lang/miri

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@oli-obk, @Nilstrieb, this should be working now.

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oli-obk commented Mar 5, 2024

r? @oli-obk

@bors r+

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bors commented Mar 5, 2024

📌 Commit a58eb80 has been approved by oli-obk

It is now in the queue for this repository.

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bors commented Mar 15, 2024

📌 Commit 96431e4 has been approved by oli-obk,wesleywiser

It is now in the queue for this repository.

@bors 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 Mar 15, 2024
bors added a commit to rust-lang-ci/rust that referenced this pull request Mar 15, 2024
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Auto merge of rust-lang#121885 - reitermarkus:generic-nonzero-inner, …
4f99ab5 
…r=oli-obk,wesleywiser

Move generic `NonZero` `rustc_layout_scalar_valid_range_start` attribute to inner type.

Tracking issue: rust-lang#120257

r? `@dtolnay`
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bors commented Mar 15, 2024

⌛ Testing commit 96431e4 with merge 4f99ab5...

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bors commented Mar 15, 2024

💔 Test failed - checks-actions

@bors bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Mar 15, 2024
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oli-obk commented Mar 16, 2024

@bors r=oli-obk,wesleywiser

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bors commented Mar 16, 2024

📌 Commit e4b27a2 has been approved by oli-obk,wesleywiser

It is now in the queue for this repository.

@bors 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 Mar 16, 2024
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bors commented Mar 17, 2024

⌛ Testing commit e4b27a2 with merge a615cea...

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bors commented Mar 17, 2024

☀️ Test successful - checks-actions
Approved by: oli-obk,wesleywiser
Pushing a615cea to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Mar 17, 2024
@bors bors merged commit a615cea into rust-lang:master Mar 17, 2024
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@rustbot rustbot added this to the 1.79.0 milestone Mar 17, 2024
This was referenced Mar 17, 2024
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Finished benchmarking commit (a615cea): comparison URL.

Overall result: ❌✅ regressions and improvements - ACTION NEEDED

Next Steps: If you can justify the regressions found in this perf run, please indicate this with @rustbot label: +perf-regression-triaged along with sufficient written justification. If you cannot justify the regressions please open an issue or create a new PR that fixes the regressions, add a comment linking to the newly created issue or PR, and then add the perf-regression-triaged label to this PR.

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

Instruction count

This is a highly reliable metric that was used to determine the overall result at the top of this comment.

mean range count
Regressions ❌
(primary)		 0.4% [0.3%, 0.6%] 9
Regressions ❌
(secondary)		 0.2% [0.2%, 0.2%] 1
Improvements ✅
(primary)		 - - 0
Improvements ✅
(secondary)		 -2.8% [-2.8%, -2.8%] 1
All ❌✅ (primary) 0.4% [0.3%, 0.6%] 9

Max RSS (memory usage)

Results

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)		 6.5% [3.5%, 9.5%] 2
Regressions ❌
(secondary)		 4.8% [4.8%, 4.8%] 1
Improvements ✅
(primary)		 -3.9% [-7.2%, -0.2%] 5
Improvements ✅
(secondary)		 - - 0
All ❌✅ (primary) -0.9% [-7.2%, 9.5%] 7

Cycles

Results

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)		 -6.5% [-8.1%, -3.7%] 4
All ❌✅ (primary) - - 0

Binary size

Results

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)		 0.1% [0.0%, 0.5%] 17
Regressions ❌
(secondary)		 - - 0
Improvements ✅
(primary)		 -0.2% [-0.4%, -0.0%] 2
Improvements ✅
(secondary)		 -0.3% [-0.4%, -0.3%] 3
All ❌✅ (primary) 0.1% [-0.4%, 0.5%] 19

Bootstrap: 669.642s -> 669.054s (-0.09%)
Artifact size: 312.75 MiB -> 312.82 MiB (0.02%)

@rustbot rustbot added the perf-regression Performance regression. label Mar 17, 2024
@reitermarkus reitermarkus deleted the generic-nonzero-inner branch March 17, 2024 14:59
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Kobzol commented Mar 19, 2024

This looks like a genuine, albeit small, regression. Was it expected that this might regress compilation time?

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oli-obk commented Mar 19, 2024

Not really, but I guess the extra struct field indirection does have an impact after all. We've seen similar things before when we added another wrapper type inside Box. I think we'll just have to take this hit for now

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Kobzol commented Mar 19, 2024

Ok, marking as triaged.

@rustbot label: +perf-regression-triaged

@rustbot rustbot added the perf-regression-triaged The performance regression has been triaged. label Mar 19, 2024
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@oli-obk oli-obk Awaiting requested review from oli-obk

@Nilstrieb Nilstrieb Awaiting requested review from Nilstrieb

@wesleywiser wesleywiser Awaiting requested review from wesleywiser

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A-testsuite Area: The testsuite used to check the correctness of rustc merged-by-bors This PR was explicitly merged by bors. perf-regression Performance regression. perf-regression-triaged The performance regression has been triaged. S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue.
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