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Rollup of 10 pull requests #98375

Merged
merged 21 commits into from
Jun 22, 2022
Merged

Rollup of 10 pull requests #98375

merged 21 commits into from
Jun 22, 2022

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JohnTitor
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Successful merges:

Failed merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

RalfJung and others added 21 commits May 29, 2022 13:29
fix tidy checks and correct cpu-usage-over-time-plot script
Co-authored-by: Josh Triplett <josh@joshtriplett.org>
Co-Authored-By: Joshua Nelson <github@jyn.dev>
Co-Authored-By: Eric Huss <eric@huss.org>
update CPU usage script

I've made slight changes to the CPU usage plot script with updated links from the [ci2 aws instance](https://rust-lang-ci2.s3.amazonaws.com/).
Use futex based thread parker on Fuchsia.
…mulacrum

Add release notes for 1.62

cc ``@rust-lang/release``

r? ``@pietroalbini``
clarify how Rust atomics correspond to C++ atomics

``@cbeuw`` noted in rust-lang/miri#1963 that the correspondence between C++ atomics and Rust atomics is not quite as obvious as one might think, since in Rust I can use `get_mut` to treat previously non-atomic data as atomic. However, I think using C++20 `atomic_ref`, we can establish a suitable relation between the two -- or do you see problems with that ``@cbeuw?`` (I recall you said there was some issue, but it was deep inside that PR and Github makes it impossible to find...)

Cc ``@thomcc;`` not sure whom else to ping for atomic memory model things.
… r=oli-obk

Point at return expression for RPIT-related error

Certainly this needs some diagnostic refining, but I wanted to show that it was possible first and foremost. Not sure if this is the right approach. Open to feedback.

Fixes rust-lang#80583
Simplify `likely!` and `unlikely!` macro

The corresponding intrinsics have long been safe-to-call, so the unsafe block is no longer needed.
…r=Mark-Simulacrum

Add some tests for impossible bounds

Adds test for rust-lang#93008
Adds test for rust-lang#94680
Closes rust-lang#94999
Closes rust-lang#95640
…huss

Document unstable `--extern` options

These are needed for Cargo's `build-std` feature and for anyone who wanted to do a similar thing outside of Cargo.
…omcc

remove use of &Alloc in btree tests

I missed these in rust-lang#98233.

r? ``@thomcc``
@rustbot rustbot added 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. rollup A PR which is a rollup labels Jun 22, 2022
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@bors r+ p=10 rollup=never

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bors commented Jun 22, 2022

📌 Commit db64923 has been approved by JohnTitor

@bors bors added the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Jun 22, 2022
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bors commented Jun 22, 2022

⌛ Testing commit db64923 with merge 89a0783...

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bors commented Jun 22, 2022

☀️ Test successful - checks-actions
Approved by: JohnTitor
Pushing 89a0783 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Jun 22, 2022
@bors bors merged commit 89a0783 into rust-lang:master Jun 22, 2022
@rustbot rustbot added this to the 1.63.0 milestone Jun 22, 2022
@JohnTitor JohnTitor deleted the rollup-e5c6rgo branch June 22, 2022 10:50
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Finished benchmarking commit (89a0783): comparison url.

Instruction count

  • Primary benchmarks: 🎉 relevant improvement found
  • Secondary benchmarks: 😿 relevant regressions found
mean1 max count2
Regressions 😿
(primary)
N/A N/A 0
Regressions 😿
(secondary)
0.3% 0.3% 2
Improvements 🎉
(primary)
-0.2% -0.2% 1
Improvements 🎉
(secondary)
N/A N/A 0
All 😿🎉 (primary) -0.2% -0.2% 1

Max RSS (memory usage)

Results
  • Primary benchmarks: no relevant changes found
  • Secondary benchmarks: mixed results
mean1 max count2
Regressions 😿
(primary)
N/A N/A 0
Regressions 😿
(secondary)
2.9% 3.6% 4
Improvements 🎉
(primary)
N/A N/A 0
Improvements 🎉
(secondary)
-2.5% -3.0% 2
All 😿🎉 (primary) N/A N/A 0

Cycles

Results
  • Primary benchmarks: 🎉 relevant improvement found
  • Secondary benchmarks: 🎉 relevant improvement found
mean1 max count2
Regressions 😿
(primary)
N/A N/A 0
Regressions 😿
(secondary)
N/A N/A 0
Improvements 🎉
(primary)
-2.2% -2.2% 1
Improvements 🎉
(secondary)
-2.2% -2.2% 1
All 😿🎉 (primary) -2.2% -2.2% 1

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

@rustbot label: -perf-regression

Footnotes

  1. the arithmetic mean of the percent change 2 3

  2. number of relevant changes 2 3

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