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Rollup of 7 pull requests #111346

Merged
merged 15 commits into from May 8, 2023
Merged

Rollup of 7 pull requests #111346

merged 15 commits into from May 8, 2023

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JohnTitor
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Successful merges:

Failed merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

chrisnc and others added 15 commits April 15, 2023 15:40
This function/lang_item was introduced in rust-lang#104321 as a temporary workaround of future lowering.
The usage and need for it went away in rust-lang#104833.
After a bootstrap update, the function itself can be removed from `std`.
…ter, r=oli-obk

Add deployment-target --print flag for Apple targets

This is very useful for crates that need to know what the Apple OS deployment target is for their build scripts or inside of a build environment. Right now, the defaults just get copy/pasted around the ecosystem since they've been stable for so long. But with rust-lang#104385 in progress, that won't be true anymore and everything will need to move. Ideally whenever it happens again, this could be less painful as everything can ask the compiler what its default is instead.

To show examples of the copy/paste proliferation, here's some crates and/or apps that do:
- [cc](https://github.com/rust-lang/cc-rs/pull/708/files), Soon
-  [mac-notification-sys](https://github.com/h4llow3En/mac-notification-sys/pull/46/files#diff-d0d98998092552a1d3259338c2c71e118a5b8343dd4703c0c7f552ada7f9cb42R10-R12)
- [PyO3](https://github.com/PyO3/maturin/blob/ccb02d1aa1cc41e82a3572a3c8b35cace15f3e78/src/target.rs#L755-L758)
- [Anki](https://github.com/ankitects/anki/blob/613b5c1034cc9943f3f68d818ae22b2e0acec877/build/runner/src/bundle/artifacts.rs#L49-L54)
- [jsc-rs](https://github.com/Brooooooklyn/jsc-rs/blob/37767267568fb2de62fc441473e7d158dd980520/xtask/src/build.rs#L402-L405)
... and probably more that a simple GitHub codesearch didn't see
Update max_atomic_width of armv7r and armv7_sony_vita targets to 64.

All armv7a and armv7r implementations support `ldrexd`/`strexd`, only armv7m does not.
STD support for PSVita

This PR adds std support for `armv7-sony-vita-newlibeabihf` target.

The work here is fairly similar to rust-lang#95897, just for a different target platform.

This depends on the following pull requests:

rust-lang/backtrace-rs#523
rust-lang/libc#3209
…per, r=TaKO8Ki

Don't compute trait super bounds unless they're positive

Fixes rust-lang#111207

The comment is modified to explain the rationale for why we even have this recursive call to supertraits in the first place, which doesn't apply to negative bounds since they don't elaborate at all.
…rk-Simulacrum

Remove `identity_future` from stdlib

This function/lang_item was introduced in rust-lang#104321 as a temporary workaround of future lowering. The usage and need for it went away in rust-lang#104833.
After a bootstrap update, the function itself can be removed from `std`.
Mark s390x condition code register as clobbered in inline assembly

Various s390x instructions (arithmetic operations, logical operations, comparisons, etc. see also "Condition Codes" section in [z/Architecture Reference Summary](https://www.ibm.com/support/pages/zarchitecture-reference-summary)) modify condition code register `cc`, but AFAIK there is currently no way to mark it as clobbered in `asm!`.

`cc` register definition in LLVM:
https://github.com/llvm/llvm-project/blob/main/llvm/lib/Target/SystemZ/SystemZRegisterInfo.td#L320

This PR also updates asm_experimental_arch docs in the unstable-book to mention s390x registers.

cc `@uweigand`

r? `@Amanieu`
Improve inline asm for LoongArch

This PR is a sub-part of rust-lang#111235, to improve inline asm for LoongArch.

r? `@Amanieu`
@rustbot rustbot added A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. 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. rollup A PR which is a rollup labels May 8, 2023
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@bors r+ p=7 rollup=never

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bors commented May 8, 2023

📌 Commit 2a8adcc has been approved by JohnTitor

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 May 8, 2023
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bors commented May 8, 2023

⌛ Testing commit 2a8adcc with merge ce04288...

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bors commented May 8, 2023

☀️ Test successful - checks-actions
Approved by: JohnTitor
Pushing ce04288 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label May 8, 2023
@bors bors merged commit ce04288 into rust-lang:master May 8, 2023
12 checks passed
@rustbot rustbot added this to the 1.71.0 milestone May 8, 2023
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📌 Perf builds for each rolled up PR:

PR# Perf Build Sha
#111332 432ecc6bc930b40b328956e65cbcfad4b01e6c43
#111331 c563912e57d635030661ffe6aae15de3fa9e171c
#111315 ffc9ed28518b673386e13a93d0b1718002c8f5f1
#111211 65c090fcc43a8837d0fd03e17907be0b326cf17a
#110638 1cd3accd8d2be0d6881c91386bace94610d7c718
#110377 cd3898c850333d3206656472d403f58a647a5219
#105354 7171295e6594f15d17b01a10d6d2eaaae5b943b9

previous master: c86e7fb60f

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

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Finished benchmarking commit (ce04288): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

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

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)
- - 0
Regressions ❌
(secondary)
- - 0
Improvements ✅
(primary)
-2.3% [-2.5%, -2.1%] 2
Improvements ✅
(secondary)
- - 0
All ❌✅ (primary) -2.3% [-2.5%, -2.1%] 2

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: 654.499s -> 654.215s (-0.04%)

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